feat: more chunk gen work

crates/pumpkin-world/src/chunk_system/generation_cache.rs

@@ -454,6 +454,10 @@ impl GenerationCache for Cache {
     fn is_air(&self, local_pos: &Vector3<i32>) -> bool {
         is_air(GenerationCache::get_block_state(self, local_pos))
     }
+
+    fn get_sea_level(&self) -> i32 {
+        self.get_center_chunk().get_sea_level()
+    }
 }
 
 impl Cache {

crates/pumpkin-world/src/generation/block_state_provider.rs

@@ -38,8 +38,9 @@ impl BlockStateProvider {
             Self::Simple(provider) => Some(provider.get(pos)),
             Self::Weighted(provider) => Some(provider.get(random)),
             Self::DualNoise(provider) => Some(provider.get(pos)),
-            Self::Pillar(provider) => Some(provider.get(pos)),
+            Self::Pillar(provider) => Some(provider.get_with_random(random, pos)),
-            Self::RandomizedInt(_) | Self::Rule(_) => None,
+            Self::RandomizedInt(provider) => provider.get_for_bonemeal(random, pos),
+            Self::Rule(_) => None,
         }
     }
 
@@ -55,10 +56,8 @@ impl BlockStateProvider {
             Self::NoiseThreshold(provider) => provider.get(random, pos),
             Self::NoiseProvider(provider) => provider.get(pos),
             Self::DualNoise(provider) => provider.get(pos),
-            Self::Pillar(provider) => provider.get(pos),
+            Self::Pillar(provider) => provider.get_with_random(random, pos),
-            Self::RandomizedInt(provider) => {
+            Self::RandomizedInt(provider) => provider.get_state_for_world(world, random, pos),
-                provider.source.get_state_for_world(world, random, pos)
-            }
             Self::Rule(provider) => {
                 for rule in &provider.rules {
                     if rule.if_true.test_world(world, None, &pos) {
@@ -86,7 +85,7 @@ impl BlockStateProvider {
             Self::Simple(provider) => provider.get(pos),
             Self::Weighted(provider) => provider.get(random),
             Self::DualNoise(provider) => provider.get(pos),
-            Self::Pillar(provider) => provider.get(pos),
+            Self::Pillar(provider) => provider.get_with_random(random, pos),
             Self::RandomizedInt(provider) => provider.get(random, pos, chunk, block_registry),
             Self::Rule(provider) => provider.get(block_registry, chunk, random, pos),
         }
@@ -170,6 +169,63 @@ pub struct RandomizedIntBlockStateProvider {
 }
 
 impl RandomizedIntBlockStateProvider {
+    fn apply_property(
+        &self,
+        base_state: &'static BlockState,
+        random: &mut RandomGenerator,
+    ) -> &'static BlockState {
+        let value = self.values.get(random);
+        let val_str = value.to_string();
+        let block = Block::from_id(base_state.id.to_block_id());
+        block.properties(base_state.id).map_or_else(
+            || {
+                let props = [(self.property.as_str(), val_str.as_str())];
+                let new_state_id = block.from_properties(&props).to_state_id(block);
+                BlockState::from_id(new_state_id)
+            },
+            |props_source| {
+                let mut props: Vec<(&str, &str)> = props_source
+                    .to_props()
+                    .iter()
+                    .map(|(k, v)| (*k, *v))
+                    .collect();
+                let mut found = false;
+                for (k, v) in &mut props {
+                    if *k == self.property {
+                        *v = &val_str;
+                        found = true;
+                        break;
+                    }
+                }
+                if !found {
+                    props.push((&self.property, &val_str));
+                }
+                let new_state_id = block.from_properties(&props).to_state_id(block);
+                BlockState::from_id(new_state_id)
+            },
+        )
+    }
+
+    pub fn get_for_bonemeal(
+        &self,
+        random: &mut RandomGenerator,
+        pos: BlockPos,
+    ) -> Option<&'static BlockState> {
+        self.source
+            .get_for_bonemeal(random, pos)
+            .map(|state| self.apply_property(state, random))
+    }
+
+    pub fn get_state_for_world(
+        &self,
+        world: &dyn BlockAccessor,
+        random: &mut RandomGenerator,
+        pos: BlockPos,
+    ) -> &'static BlockState {
+        let state = self.source.get_state_for_world(world, random, pos);
+        self.apply_property(state, random)
+    }
+
     pub fn get<T: GenerationCache>(
         &self,
         random: &mut RandomGenerator,
@@ -177,8 +233,8 @@ impl RandomizedIntBlockStateProvider {
         chunk: &T,
         block_registry: &dyn WorldPortalExt,
     ) -> &'static BlockState {
-        // TODO
+        let state = self.source.get(random, pos, chunk, block_registry);
-        self.source.get(random, pos, chunk, block_registry)
+        self.apply_property(state, random)
     }
 }
 
@@ -189,7 +245,33 @@ pub struct PillarBlockStateProvider {
 impl PillarBlockStateProvider {
     #[must_use]
     pub const fn get(&self, _pos: BlockPos) -> &'static BlockState {
-        // TODO: random axis
+        self.state
+    }
+
+    #[must_use]
+    pub fn get_with_random(
+        &self,
+        random: &mut RandomGenerator,
+        _pos: BlockPos,
+    ) -> &'static BlockState {
+        let axis_str = match random.next_bounded_i32(3) {
+            0 => "x",
+            1 => "y",
+            _ => "z",
+        };
+        let block = Block::from_id(self.state.id.to_block_id());
+        if let Some(props_source) = block.properties(self.state.id) {
+            let prop_list = props_source.to_props();
+            if prop_list.iter().any(|(k, _)| *k == "axis") {
+                let new_props: Vec<(&str, &str)> = prop_list
+                    .iter()
+                    .map(|(k, v)| (*k, if *k == "axis" { axis_str } else { *v }))
+                    .collect();
+                let new_props_obj = block.from_properties(new_props.as_slice());
+                let new_state_id = new_props_obj.to_state_id(block);
+                return BlockState::from_id(new_state_id);
+            }
+        }
         self.state
     }
 }

crates/pumpkin-world/src/generation/feature/configured_features.rs

@@ -422,21 +422,45 @@ impl ConfiguredFeature {
             Self::BonusChest(_feature) => {
                 BonusChestFeature::generate(chunk, min_y, height, feature_name, random, pos)
             }
-            Self::DeltaFeature(_feature) => {
+            Self::DeltaFeature(feature) => {
-                DeltaFeatureFeature::generate(chunk, min_y, height, feature_name, random, pos)
+                feature.generate(chunk, min_y, height, feature_name, random, pos)
             }
+            Self::BlockPile(feature) => feature.generate(
+                chunk,
+                block_registry,
+                min_y,
+                height,
+                feature_name,
+                random,
+                pos,
+            ),
             Self::DripstoneCluster(feature) => feature.generate(chunk, pos),
             Self::LargeDripstone(feature) => feature.generate(chunk, random, pos),
             Self::EndGateway(feature) => feature.generate(chunk, pos),
             Self::FillLayer(feature) => {
                 feature.generate(chunk, min_y, height, feature_name, random, pos)
             }
+            Self::FallenTree(feature) => feature.generate(
+                chunk,
+                block_registry,
+                min_y,
+                height,
+                feature_name,
+                random,
+                pos,
+            ),
             Self::HugeBrownMushroom(feature) => {
                 feature.generate(chunk, min_y, height, feature_name, random, pos)
             }
-            Self::HugeFungus(feature) => {
+            Self::HugeFungus(feature) => feature.generate(
-                feature.generate(chunk, min_y, height, feature_name, random, pos)
+                chunk,
-            }
+                block_registry,
+                min_y,
+                height,
+                feature_name,
+                random,
+                pos,
+            ),
             Self::HugeRedMushroom(feature) => {
                 feature.generate(chunk, min_y, height, feature_name, random, pos)
             }
@@ -452,7 +476,7 @@ impl ConfiguredFeature {
             Self::WeepingVines(feature) => {
                 feature.generate(chunk, min_y, height, feature_name, random, pos)
             }
-            _ => false,
+            Self::NoOp => false,
         }
     }
 }

crates/pumpkin-world/src/generation/feature/features/bamboo.rs

@@ -23,65 +23,88 @@ impl BambooFeature {
         block_registry: &dyn WorldPortalExt,
         _min_y: i8,
         _height: u16,
-        _feature: pumpkin_data::placed_feature::PlacedFeature, // This placed feature
+        _feature: pumpkin_data::placed_feature::PlacedFeature,
         random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        let mut i = 0;
+        let mut placed = 0;
-        if chunk.is_air(&pos.0) {
+        if chunk.is_air(&pos.0)
-            if block_registry.can_place_at(&Block::BAMBOO, Block::BAMBOO.default_state, chunk, &pos)
+            && block_registry.can_place_at(&Block::BAMBOO, Block::BAMBOO.default_state, chunk, &pos)
-            {
+        {
-                let height = random.next_bounded_i32(12) + 5;
+            let height = random.next_bounded_i32(12) + 5;
-                if random.next_f32() < self.probability {
+            if random.next_f32() < self.probability {
-                    let rnd = random.next_bounded_i32(4) + 1;
+                let r = random.next_bounded_i32(4) + 1;
-                    for x in pos.0.x - rnd..pos.0.x + rnd {
+                for xx in pos.0.x - r..=pos.0.x + r {
-                        for z in pos.0.z - rnd..pos.0.z + rnd {
+                    for zz in pos.0.z - r..=pos.0.z + r {
-                            let block_below =
+                        let xd = xx - pos.0.x;
-                                BlockPos::new(x, chunk.top_block_height_exclusive(x, z) - 1, z);
+                        let zd = zz - pos.0.z;
-                            let block = GenerationCache::get_block_state(chunk, &block_below.0);
+                        if xd * xd + zd * zd <= r * r {
-                            if !block.to_block_id().has_tag(tag::Block::MINECRAFT_DIRT) {
+                            let podzol_y = chunk.top_block_height_exclusive(xx, zz) - 1;
-                                continue;
+                            let podzol_pos = BlockPos::new(xx, podzol_y, zz);
+                            let block_id = GenerationCache::get_block_state(chunk, &podzol_pos.0)
+                                .to_block_id();
+                            if block_id
+                                .has_tag(tag::Block::MINECRAFT_BENEATH_BAMBOO_PODZOL_REPLACEABLE)
+                            {
+                                chunk.set_block_state(&podzol_pos.0, Block::PODZOL.default_state);
                             }
-                            chunk.set_block_state(&block_below.0, Block::PODZOL.default_state);
                         }
                     }
                 }
-                let mut bpos = pos;
+            }
-                let bamboo = Block::BAMBOO.default_state;
-                for _ in 0..height {
-                    if chunk.is_air(&bpos.0) {
-                        chunk.set_block_state(&bpos.0, bamboo);
-                        bpos = bpos.up();
-                    } else {
-                        break;
-                    }
-                }
-                // Top block
-                if bpos.0.y - pos.0.y >= 3 {
-                    let mut props = BambooLikeProperties::default(&Block::BAMBOO);
-                    props.leaves = BambooLeaves::Large;
-                    props.stage = 1;
 
-                    chunk.set_block_state(
+            let trunk_props = BambooLikeProperties {
-                        &bpos.0,
+                age: 1,
-                        BlockState::from_id(props.to_state_id(&Block::BAMBOO)),
+                leaves: BambooLeaves::None,
-                    );
+                stage: 0,
-                    props.stage = 0;
+            };
+            let trunk_state = BlockState::from_id(trunk_props.to_state_id(&Block::BAMBOO));
 
-                    chunk.set_block_state(
+            let mut bpos = pos;
-                        &bpos.down().0,
+            for _ in 0..height {
-                        BlockState::from_id(props.to_state_id(&Block::BAMBOO)),
+                if chunk.is_air(&bpos.0) {
-                    );
+                    chunk.set_block_state(&bpos.0, trunk_state);
-                    props.leaves = BambooLeaves::Small;
+                    bpos = bpos.up();
-
+                } else {
-                    chunk.set_block_state(
+                    break;
-                        &bpos.down().down().0,
-                        BlockState::from_id(props.to_state_id(&Block::BAMBOO)),
-                    );
                 }
             }
-            i += 1;
+
+            if bpos.0.y - pos.0.y >= 3 {
+                let final_large_props = BambooLikeProperties {
+                    age: 1,
+                    leaves: BambooLeaves::Large,
+                    stage: 1,
+                };
+                chunk.set_block_state(
+                    &bpos.down().0,
+                    BlockState::from_id(final_large_props.to_state_id(&Block::BAMBOO)),
+                );
+
+                let top_large_props = BambooLikeProperties {
+                    age: 1,
+                    leaves: BambooLeaves::Large,
+                    stage: 0,
+                };
+                chunk.set_block_state(
+                    &bpos.down().down().0,
+                    BlockState::from_id(top_large_props.to_state_id(&Block::BAMBOO)),
+                );
+
+                let top_small_props = BambooLikeProperties {
+                    age: 1,
+                    leaves: BambooLeaves::Small,
+                    stage: 0,
+                };
+                chunk.set_block_state(
+                    &bpos.down().down().down().0,
+                    BlockState::from_id(top_small_props.to_state_id(&Block::BAMBOO)),
+                );
+            }
+
+            placed += 1;
         }
-        i > 0
+
+        placed > 0
     }
 }

crates/pumpkin-world/src/generation/feature/features/basalt_columns.rs

@@ -6,7 +6,6 @@ use pumpkin_util::{
 
 use crate::{generation::proto_chunk::GenerationCache, world::WorldPortalExt};
 
-const LAVA_SEA_LEVEL: i32 = 32; // TODO: use getSeaLevel() instead of hardcoding this
 const CLUSTERED_REACH: i32 = 5;
 const UNCLUSTERED_REACH: i32 = 8;
 const CLUSTERED_SIZE: i32 = 50;
@@ -143,7 +142,7 @@ fn find_air<T: GenerationCache>(chunk: &T, pos: BlockPos, mut limit: i32) -> Opt
 
 fn is_air_or_lava_ocean<T: GenerationCache>(chunk: &T, pos: BlockPos) -> bool {
     let state = GenerationCache::get_block_state(chunk, &pos.0);
-    is_air(state) || (state.to_block_id() == Block::LAVA.id && pos.0.y <= LAVA_SEA_LEVEL)
+    is_air(state) || (state.to_block_id() == Block::LAVA.id && pos.0.y <= chunk.get_sea_level())
 }
 
 const fn is_cannot_place_on(id: BlockId) -> bool {

crates/pumpkin-world/src/generation/feature/features/block_pile.rs

@@ -1 +1,75 @@
-pub struct BlockPileFeature;
+use pumpkin_data::{Block, BlockDirection};
+use pumpkin_util::{
+    math::position::BlockPos,
+    random::{RandomGenerator, RandomImpl},
+};
+
+use crate::generation::block_state_provider::BlockStateProvider;
+use crate::generation::proto_chunk::GenerationCache;
+use crate::world::WorldPortalExt;
+
+pub struct BlockPileFeature {
+    pub state_provider: BlockStateProvider,
+}
+
+impl BlockPileFeature {
+    #[expect(clippy::too_many_arguments)]
+    pub fn generate<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        min_y: i8,
+        _height: u16,
+        _feature: pumpkin_data::placed_feature::PlacedFeature,
+        random: &mut RandomGenerator,
+        pos: BlockPos,
+    ) -> bool {
+        if pos.0.y < min_y as i32 + 5 {
+            return false;
+        }
+
+        let xr = 2 + random.next_bounded_i32(2);
+        let zr = 2 + random.next_bounded_i32(2);
+
+        for block_pos in BlockPos::iterate(pos.add(-xr, 0, -zr), pos.add(xr, 1, zr)) {
+            let xd = pos.0.x - block_pos.0.x;
+            let zd = pos.0.z - block_pos.0.z;
+            if (xd * xd + zd * zd) as f32 <= random.next_f32() * 10.0 - random.next_f32() * 6.0
+                || random.next_f32() < 0.031
+            {
+                self.try_place_block(chunk, block_registry, block_pos, random);
+            }
+        }
+
+        true
+    }
+
+    fn may_place_on<T: GenerationCache>(
+        chunk: &T,
+        block_pos: BlockPos,
+        random: &mut RandomGenerator,
+    ) -> bool {
+        let below = block_pos.down();
+        let below_state = GenerationCache::get_block_state(chunk, &below.0).to_state();
+        if below_state.id == Block::DIRT_PATH.default_state.id {
+            random.next_bool()
+        } else {
+            below_state.is_side_solid(BlockDirection::Up)
+        }
+    }
+
+    fn try_place_block<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        block_pos: BlockPos,
+        random: &mut RandomGenerator,
+    ) {
+        if chunk.is_air(&block_pos.0) && Self::may_place_on(chunk, block_pos, random) {
+            let state = self
+                .state_provider
+                .get(random, block_pos, chunk, block_registry);
+            chunk.set_block_state(&block_pos.0, state);
+        }
+    }
+}

crates/pumpkin-world/src/generation/feature/features/blue_ice.rs

@@ -1,4 +1,4 @@
-use pumpkin_data::Block;
+use pumpkin_data::{Block, BlockDirection};
 use pumpkin_util::{
     math::position::BlockPos,
     random::{RandomGenerator, RandomImpl},
@@ -6,8 +6,6 @@ use pumpkin_util::{
 
 use crate::generation::proto_chunk::GenerationCache;
 
-const SEA_LEVEL: i32 = 63; // TODO: use getSeaLevel() instead of hardcoding
-
 pub struct BlueIceFeature;
 
 impl BlueIceFeature {
@@ -16,7 +14,7 @@ impl BlueIceFeature {
         random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        if pos.0.y >= SEA_LEVEL - 1 {
+        if pos.0.y > chunk.get_sea_level() - 1 {
             return false;
         }
 
@@ -27,64 +25,57 @@ impl BlueIceFeature {
             return false;
         }
 
-        let mut has_ice_neighbor = false;
+        let mut found_packed_ice = false;
-        for neighbor_pos in [
+        for dir in BlockDirection::all() {
-            pos.up(),
+            if dir != BlockDirection::Down {
-            pos.down(),
+                let neighbor_pos = pos.offset(dir.to_offset());
-            pos.north(),
+                if GenerationCache::get_block_state(chunk, &neighbor_pos.0).to_block_id()
-            pos.south(),
+                    == Block::PACKED_ICE.id
-            pos.east(),
+                {
-            pos.west(),
+                    found_packed_ice = true;
-        ] {
+                    break;
-            if GenerationCache::get_block_state(chunk, &neighbor_pos.0).to_state()
+                }
-                == Block::ICE.default_state
-            {
-                has_ice_neighbor = true;
-                break;
             }
         }
 
-        if !has_ice_neighbor {
+        if !found_packed_ice {
             return false;
         }
 
         chunk.set_block_state(&pos.0, Block::BLUE_ICE.default_state);
 
         for _ in 0..200 {
-            let offset_x = random.next_bounded_i32(8) - random.next_bounded_i32(8);
+            let y_off = random.next_bounded_i32(5) - random.next_bounded_i32(6);
-            let offset_y = random.next_bounded_i32(8) - random.next_bounded_i32(8);
+            let mut xz_diff = 3;
-            let offset_z = random.next_bounded_i32(8) - random.next_bounded_i32(8);
+            if y_off < 2 {
-            let target_pos = pos.add(offset_x, offset_y, offset_z);
+                xz_diff += y_off / 2;
-
-            if chunk.out_of_height(target_pos.0.y as i16) {
-                continue;
             }
 
-            let target_state = GenerationCache::get_block_state(chunk, &target_pos.0).to_state();
+            if xz_diff >= 1 {
-            if target_state.is_air()
+                let place_pos = pos.add(
-                || target_state == Block::WATER.default_state
+                    random.next_bounded_i32(xz_diff) - random.next_bounded_i32(xz_diff),
-                || target_state == Block::ICE.default_state
+                    y_off,
-                || target_state == Block::PACKED_ICE.default_state
+                    random.next_bounded_i32(xz_diff) - random.next_bounded_i32(xz_diff),
-            {
+                );
-                let mut has_blue_ice_neighbor = false;
+                if chunk.out_of_height(place_pos.0.y as i16) {
-                for neighbor_pos in [
+                    continue;
-                    target_pos.up(),
-                    target_pos.down(),
-                    target_pos.north(),
-                    target_pos.south(),
-                    target_pos.east(),
-                    target_pos.west(),
-                ] {
-                    if GenerationCache::get_block_state(chunk, &neighbor_pos.0).to_state()
-                        == Block::BLUE_ICE.default_state
-                    {
-                        has_blue_ice_neighbor = true;
-                        break;
-                    }
                 }
 
-                if has_blue_ice_neighbor {
+                let place_state = GenerationCache::get_block_state(chunk, &place_pos.0).to_state();
-                    chunk.set_block_state(&target_pos.0, Block::BLUE_ICE.default_state);
+                if place_state.is_air()
+                    || place_state == Block::WATER.default_state
+                    || place_state == Block::PACKED_ICE.default_state
+                    || place_state == Block::ICE.default_state
+                {
+                    for dir in BlockDirection::all() {
+                        let rel_pos = place_pos.offset(dir.to_offset());
+                        if GenerationCache::get_block_state(chunk, &rel_pos.0).to_block_id()
+                            == Block::BLUE_ICE.id
+                        {
+                            chunk.set_block_state(&place_pos.0, Block::BLUE_ICE.default_state);
+                            break;
+                        }
+                    }
                 }
             }
         }

crates/pumpkin-world/src/generation/feature/features/bonus_chest.rs

@@ -1,5 +1,10 @@
-use pumpkin_data::Block;
+use pumpkin_data::{Block, BlockDirection};
-use pumpkin_util::{math::position::BlockPos, random::RandomGenerator};
+use pumpkin_nbt::compound::NbtCompound;
+use pumpkin_util::{
+    HeightMap,
+    math::{position::BlockPos, vector3::Vector3},
+    random::{RandomGenerator, RandomImpl},
+};
 
 use crate::generation::proto_chunk::GenerationCache;
 
@@ -11,28 +16,57 @@ impl BonusChestFeature {
         _min_y: i8,
         _height: u16,
         _feature: pumpkin_data::placed_feature::PlacedFeature,
-        _random: &mut RandomGenerator,
+        random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        let mut block_pos = pos;
+        let chunk_min_x = (pos.0.x >> 4) << 4;
-        while chunk.is_air(&block_pos.0) && block_pos.0.y > chunk.bottom_y() as i32 + 2 {
+        let chunk_min_z = (pos.0.z >> 4) << 4;
-            block_pos = block_pos.down();
+
+        let mut x_poses: Vec<i32> = (chunk_min_x..=chunk_min_x + 15).collect();
+        let mut z_poses: Vec<i32> = (chunk_min_z..=chunk_min_z + 15).collect();
+
+        for i in (1..x_poses.len()).rev() {
+            let j = random.next_bounded_i32(i as i32 + 1) as usize;
+            x_poses.swap(i, j);
+        }
+        for i in (1..z_poses.len()).rev() {
+            let j = random.next_bounded_i32(i as i32 + 1) as usize;
+            z_poses.swap(i, j);
         }
 
-        let chest_pos = block_pos.up();
+        for &x in &x_poses {
-        if !chunk.is_air(&chest_pos.0) {
+            for &z in &z_poses {
-            return false;
+                let y = chunk.get_top_y(&HeightMap::MotionBlockingNoLeaves, x, z);
-        }
+                let chest_pos = Vector3::new(x, y, z);
+                if chunk.is_air(&chest_pos) {
+                    chunk.set_block_state(&chest_pos, Block::CHEST.default_state);
 
-        chunk.set_block_state(&chest_pos.0, Block::CHEST.default_state);
+                    let loot_seed = random.next_i64();
+                    let mut chest_nbt = NbtCompound::new();
+                    chest_nbt.put_string("id", "minecraft:chest".to_string());
+                    chest_nbt.put_int("x", chest_pos.x);
+                    chest_nbt.put_int("y", chest_pos.y);
+                    chest_nbt.put_int("z", chest_pos.z);
+                    chest_nbt.put_string(
+                        "LootTable",
+                        "minecraft:chests/spawn_bonus_chest".to_string(),
+                    );
+                    chest_nbt.put_long("LootTableSeed", loot_seed);
+                    chunk.add_block_entity(&chest_pos, chest_nbt);
 
-        let torch_offsets = [(1, 0, 0), (-1, 0, 0), (0, 0, 1), (0, 0, -1)];
+                    for dir in BlockDirection::horizontal() {
-        for &(dx, dy, dz) in &torch_offsets {
+                        let torch_pos = chest_pos.add(&dir.to_offset());
-            let t_pos = BlockPos::new(chest_pos.0.x + dx, chest_pos.0.y + dy, chest_pos.0.z + dz);
+                        let below_torch = torch_pos.add(&Vector3::new(0, -1, 0));
-            if chunk.is_air(&t_pos.0) {
+                        if !chunk.is_air(&below_torch) && chunk.is_air(&torch_pos) {
-                chunk.set_block_state(&t_pos.0, Block::TORCH.default_state);
+                            chunk.set_block_state(&torch_pos, Block::TORCH.default_state);
+                        }
+                    }
+
+                    return true;
+                }
             }
         }
-        true
+
+        false
     }
 }

crates/pumpkin-world/src/generation/feature/features/coral/coral_claw.rs

@@ -16,53 +16,69 @@ impl CoralClawFeature {
         random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        // First lets get a random coral
         let block = CoralFeature::get_random_tag_entry(tag::Block::MINECRAFT_CORAL_BLOCKS, random);
         if !CoralFeature::generate_coral_piece(chunk, block_registry, random, block, pos) {
             return false;
         }
-        let direction = BlockDirection::random_horizontal(random);
+        let claw_dir =
-        let i = random.next_bounded_i32(2) + 2;
+            BlockDirection::from_cardinal_direction(BlockDirection::random_horizontal(random));
-        // TODO: vanilla iterates the first `i` of Util.toShuffledList([direction,
+        let n_branches = random.next_bounded_i32(2) + 2;
-        // direction.getClockWise(), direction.getCounterClockWise()], random) — the
+        let mut possible_directions = [
-        // shuffle consumes RNG draws and the opposite of `direction` is never visited.
+            claw_dir,
-        let directions = BlockDirection::horizontal_worldgen()
+            claw_dir.rotate_clockwise(),
-            .into_iter()
+            claw_dir.rotate_counter_clockwise(),
-            .take(i as usize);
+        ];
-        'block0: for direction2 in directions {
+        for i in (1..possible_directions.len()).rev() {
-            let mut pos = pos;
+            let j = random.next_bounded_i32(i as i32 + 1) as usize;
-            let j = random.next_bounded_i32(2) + 1;
+            possible_directions.swap(i, j);
-            pos = pos.offset(direction2.to_offset());
+        }
 
-            let branch_direction;
+        for &branch_direction in possible_directions.iter().take(n_branches as usize) {
+            let mut mut_pos = pos;
+            let sideway_length = random.next_bounded_i32(2) + 1;
+            mut_pos = mut_pos.offset(branch_direction.to_offset());
 
-            let k = if direction2 == direction {
+            let (segment_direction, inway_length) = if branch_direction == claw_dir {
-                branch_direction = direction;
+                (claw_dir, random.next_bounded_i32(3) + 2)
-                random.next_bounded_i32(3) + 2
             } else {
-                pos = pos.up();
+                mut_pos = mut_pos.up();
-                //let _directions = [direction2, BlockDirection::Up];
+                let seg_dir = if random.next_bool() {
-                branch_direction = direction2; // TODO: make this random
+                    branch_direction
-                random.next_bounded_i32(3) + 5
+                } else {
+                    BlockDirection::Up
+                };
+                (seg_dir, random.next_bounded_i32(3) + 3)
             };
 
-            for _ in 0..j {
+            for _ in 0..sideway_length {
-                if !CoralFeature::generate_coral_piece(chunk, block_registry, random, block, pos) {
+                if !CoralFeature::generate_coral_piece(
+                    chunk,
+                    block_registry,
+                    random,
+                    block,
+                    mut_pos,
+                ) {
                     break;
                 }
-                pos = pos.offset(branch_direction.to_offset());
+                mut_pos = mut_pos.offset(segment_direction.to_offset());
             }
 
-            pos = pos.offset(branch_direction.to_offset());
+            mut_pos = mut_pos.offset(segment_direction.opposite().to_offset());
-            pos = pos.up();
+            mut_pos = mut_pos.up();
 
-            for _l in 0..k {
+            for _ in 0..inway_length {
-                pos = pos.offset(direction.opposite().to_offset());
+                mut_pos = mut_pos.offset(claw_dir.to_offset());
-                if !CoralFeature::generate_coral_piece(chunk, block_registry, random, block, pos) {
+                if !CoralFeature::generate_coral_piece(
-                    continue 'block0;
+                    chunk,
+                    block_registry,
+                    random,
+                    block,
+                    mut_pos,
+                ) {
+                    break;
                 }
                 if random.next_f32() < 0.25 {
-                    pos = pos.up();
+                    mut_pos = mut_pos.up();
                 }
             }
         }

crates/pumpkin-world/src/generation/feature/features/coral/coral_mushroom.rs

@@ -1,7 +1,7 @@
 use crate::{generation::proto_chunk::GenerationCache, world::WorldPortalExt};
 use pumpkin_data::tag;
 use pumpkin_util::{
-    math::{position::BlockPos, vector3::Vector3},
+    math::position::BlockPos,
     random::{RandomGenerator, RandomImpl},
 };
 
@@ -10,47 +10,47 @@ use super::CoralFeature;
 pub struct CoralMushroomFeature;
 
 impl CoralMushroomFeature {
-    #[allow(clippy::too_many_arguments)]
     pub fn generate<T: GenerationCache>(
         chunk: &mut T,
         block_registry: &dyn WorldPortalExt,
         _min_y: i8,
         _height: u16,
-        _feature: pumpkin_data::placed_feature::PlacedFeature, // This placed feature
+        _feature: pumpkin_data::placed_feature::PlacedFeature,
         random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        // First lets get a random coral
         let block = CoralFeature::get_random_tag_entry(tag::Block::MINECRAFT_CORAL_BLOCKS, random);
 
-        let i = random.next_bounded_i32(3) + 3;
+        let height = random.next_bounded_i32(3) + 3;
-        let j = random.next_bounded_i32(3) + 3;
+        let width = random.next_bounded_i32(3) + 3;
-        let k = random.next_bounded_i32(3) + 3;
+        let length = random.next_bounded_i32(3) + 3;
-        let l = random.next_bounded_i32(3) + 1;
+        let sink_value = random.next_bounded_i32(3) + 1;
 
-        for m in 0..=j {
+        for x in 0..=width {
-            for n in 0..=i {
+            for y in 0..=height {
-                for o in 0..=k {
+                for z in 0..=length {
-                    let mut pos = pos;
+                    let cur_pos = BlockPos::new(pos.0.x + x, pos.0.y + y - sink_value, pos.0.z + z);
-                    pos = pos.offset(Vector3::new(pos.0.x + m, pos.0.y + n, pos.0.z + o));
-                    pos = pos.down_height(l);
 
-                    let condition_a = (m != 0 && m != j) || (n != 0 && n != i);
+                    let condition_a = (x != 0 && x != width) || (y != 0 && y != height);
-                    let condition_b = (o != 0 && o != k) || (n != 0 && n != i);
+                    let condition_b = (z != 0 && z != length) || (y != 0 && y != height);
-                    let condition_c = (m != 0 && m != j) || (o != 0 && o != k);
+                    let condition_c = (x != 0 && x != width) || (z != 0 && z != length);
-                    let condition_d = m == 0 || m == j || n == 0 || n == i || o == 0 || o == k;
+                    let condition_d =
-                    let random_check = random.next_f32() < 0.1f32;
+                        x == 0 || x == width || y == 0 || y == height || z == 0 || z == length;
 
-                    if !((condition_a && condition_b && condition_c && condition_d)
+                    if condition_a
-                        && !random_check
+                        && condition_b
-                        && CoralFeature::generate_coral_piece(
+                        && condition_c
+                        && condition_d
+                        && random.next_f32() >= 0.1
+                    {
+                        CoralFeature::generate_coral_piece(
                             chunk,
                             block_registry,
                             random,
                             block,
-                            pos,
+                            cur_pos,
-                        ))
+                        );
-                    {}
+                    }
                 }
             }
         }

crates/pumpkin-world/src/generation/feature/features/coral/coral_tree.rs

@@ -10,49 +10,59 @@ use super::CoralFeature;
 pub struct CoralTreeFeature;
 
 impl CoralTreeFeature {
-    #[allow(clippy::too_many_arguments)]
     pub fn generate<T: GenerationCache>(
         chunk: &mut T,
         block_registry: &dyn WorldPortalExt,
         _min_y: i8,
         _height: u16,
-        _feature: pumpkin_data::placed_feature::PlacedFeature, // This placed feature
+        _feature: pumpkin_data::placed_feature::PlacedFeature,
         random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        // First lets get a random coral
         let block = CoralFeature::get_random_tag_entry(tag::Block::MINECRAFT_CORAL_BLOCKS, random);
-        let mut pos = pos;
+        let mut cur_pos = pos;
-        let i = random.next_bounded_i32(3) + 1;
+        let trunk_height = random.next_bounded_i32(3) + 1;
-        for _ in 0..i {
+        for _ in 0..trunk_height {
-            if !CoralFeature::generate_coral_piece(chunk, block_registry, random, block, pos) {
+            if !CoralFeature::generate_coral_piece(chunk, block_registry, random, block, cur_pos) {
                 return true;
             }
-            pos = pos.up();
+            cur_pos = cur_pos.up();
         }
-        let i = random.next_bounded_i32(3) + 2;
 
-        // TODO: vanilla takes the first `i` of Plane.HORIZONTAL.shuffledCopy(random) — a
+        let trunk_top_pos = cur_pos;
-        // Fisher–Yates that must run over the horizontal_worldgen() [N, E, S, W] base
+        let n_branches = random.next_bounded_i32(3) + 2;
-        // order and consumes RNG draws.
+
-        let directions = BlockDirection::horizontal_worldgen()
+        let mut directions: Vec<BlockDirection> = BlockDirection::horizontal_worldgen()
-            .into_iter()
+            .iter()
-            .take(i as usize);
+            .copied()
-        for dir in directions {
+            .map(BlockDirection::from_cardinal_direction)
-            pos = pos.offset(dir.to_offset());
+            .collect();
-            let times = random.next_bounded_i32(5) + 2;
+        for i in (1..directions.len()).rev() {
-            let mut m = 0;
+            let j = random.next_bounded_i32(i as i32 + 1) as usize;
-            for n in 0..times {
+            directions.swap(i, j);
-                if !CoralFeature::generate_coral_piece(chunk, block_registry, random, block, pos) {
+        }
+
+        for &branch_direction in directions.iter().take(n_branches as usize) {
+            let mut branch_pos = trunk_top_pos.offset(branch_direction.to_offset());
+            let branch_height = random.next_bounded_i32(5) + 2;
+            let mut segment_length = 0;
+
+            for j in 0..branch_height {
+                if !CoralFeature::generate_coral_piece(
+                    chunk,
+                    block_registry,
+                    random,
+                    block,
+                    branch_pos,
+                ) {
                     break;
                 }
-                pos = pos.up();
+                segment_length += 1;
-                m += 1;
+                branch_pos = branch_pos.up();
-                if n != 0 && (m < 2 || random.next_f32() >= 0.25) {
+                if j == 0 || (segment_length >= 2 && random.next_f32() < 0.25) {
-                    continue;
+                    branch_pos = branch_pos.offset(branch_direction.to_offset());
+                    segment_length = 0;
                 }
-                pos = pos.offset(dir.to_offset());
-                m = 0;
             }
         }
         true

crates/pumpkin-world/src/generation/feature/features/coral/mod.rs

@@ -24,9 +24,10 @@ impl CoralFeature {
         pos: BlockPos,
     ) -> bool {
         let block = GenerationCache::get_block_state(chunk, &pos.0).to_block_id();
-        let above_block = GenerationCache::get_block_state(chunk, &pos.up().0).to_block_id();
+        let above_pos = pos.up();
+        let above_block = GenerationCache::get_block_state(chunk, &above_pos.0).to_block_id();
 
-        if block != BlockId::WATER && !block.has_tag(tag::Block::MINECRAFT_CORALS)
+        if (block != BlockId::WATER && !block.has_tag(tag::Block::MINECRAFT_CORALS))
             || above_block != BlockId::WATER
         {
             return false;
@@ -41,18 +42,22 @@ impl CoralFeature {
                 Block::from_state_id(block_to_place_state.id),
                 block_to_place_state,
                 chunk,
-                &pos,
+                &above_pos,
             ) {
-                chunk.set_block_state(&pos.0, block_to_place_state);
+                chunk.set_block_state(&above_pos.0, block_to_place_state);
             }
         } else if random.next_f32() < 0.05 {
             let mut props = SeaPickleLikeProperties::default(&Block::SEA_PICKLE);
             props.pickles = (random.next_bounded_i32(4) as u8) + 1;
             let state_id = props.to_state_id(&Block::SEA_PICKLE);
             let block_state = BlockState::from_id(state_id);
-            if block_registry.can_place_at(Block::from_state_id(state_id), block_state, chunk, &pos)
+            if block_registry.can_place_at(
-            {
+                Block::from_state_id(state_id),
-                chunk.set_block_state(&pos.0, block_state);
+                block_state,
+                chunk,
+                &above_pos,
+            ) {
+                chunk.set_block_state(&above_pos.0, block_state);
             }
         }
         for dir in BlockDirection::horizontal_worldgen() {
@@ -68,7 +73,6 @@ impl CoralFeature {
                 continue;
             };
             let original_props = &properties.to_props();
-            // Set the right Axis
             let props: Vec<(&str, &str)> = original_props
                 .iter()
                 .map(|(key, value)| {

crates/pumpkin-world/src/generation/feature/features/delta_feature.rs

@@ -1,12 +1,21 @@
-use pumpkin_data::Block;
+use pumpkin_data::{BlockDirection, BlockId, BlockState};
-use pumpkin_util::{math::position::BlockPos, random::RandomGenerator, random::RandomImpl};
+use pumpkin_util::{
+    math::{int_provider::IntProvider, position::BlockPos},
+    random::{RandomGenerator, RandomImpl},
+};
 
 use crate::generation::proto_chunk::GenerationCache;
 
-pub struct DeltaFeatureFeature;
+pub struct DeltaFeatureFeature {
+    pub contents: &'static BlockState,
+    pub rim: &'static BlockState,
+    pub size: IntProvider,
+    pub rim_size: IntProvider,
+}
 
 impl DeltaFeatureFeature {
     pub fn generate<T: GenerationCache>(
+        &self,
         chunk: &mut T,
         _min_y: i8,
         _height: u16,
@@ -14,32 +23,81 @@ impl DeltaFeatureFeature {
         random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        let size = random.next_bounded_i32(3) + 2;
+        let mut any_placed = false;
-        let mut generated = false;
+        let spawn_rim = random.next_f64() < 0.9;
+        let rim_x = if spawn_rim {
+            self.rim_size.get(random)
+        } else {
+            0
+        };
+        let rim_z = if spawn_rim {
+            self.rim_size.get(random)
+        } else {
+            0
+        };
+        let has_rim = spawn_rim && rim_x != 0 && rim_z != 0;
+        let radius_x = self.size.get(random);
+        let radius_z = self.size.get(random);
+        let radius_limit = radius_x.max(radius_z);
 
-        for dx in -size..=size {
+        for pos_iter in BlockPos::iterate_outwards(pos, radius_x, 0, radius_z) {
-            for dy in -size..=size {
+            if pos_iter.manhattan_distance(pos) > radius_limit {
-                for dz in -size..=size {
+                break;
-                    if dx * dx + dy * dy + dz * dz <= size * size {
+            }
-                        let target = BlockPos::new(pos.0.x + dx, pos.0.y + dy, pos.0.z + dz);
+
-                        let block_id =
+            if Self::is_clear(chunk, pos_iter, self.contents) {
-                            GenerationCache::get_block_state(chunk, &target.0).to_block_id();
+                if has_rim {
-                        if block_id == Block::NETHERRACK.id
+                    any_placed = true;
-                            || block_id == Block::LAVA.id
+                    chunk.set_block_state(&pos_iter.0, self.rim);
-                            || block_id == Block::AIR.id
+                }
-                        {
+
-                            let replacement = if random.next_f32() < 0.6 {
+                let pos_offset = pos_iter.add(rim_x, 0, rim_z);
-                                Block::BASALT
+                if Self::is_clear(chunk, pos_offset, self.contents) {
-                            } else {
+                    any_placed = true;
-                                Block::BLACKSTONE
+                    chunk.set_block_state(&pos_offset.0, self.contents);
-                            };
-                            chunk.set_block_state(&target.0, replacement.default_state);
-                            generated = true;
-                        }
-                    }
                 }
             }
         }
-        generated
+
+        any_placed
+    }
+
+    fn is_clear<T: GenerationCache>(
+        chunk: &T,
+        pos: BlockPos,
+        contents: &'static BlockState,
+    ) -> bool {
+        let state = GenerationCache::get_block_state(chunk, &pos.0);
+        if state.to_block_id() == contents.id.to_block_id() {
+            return false;
+        }
+
+        if is_cannot_replace(state.to_block_id()) {
+            return false;
+        }
+
+        for dir in BlockDirection::all() {
+            let neighbor_state =
+                GenerationCache::get_block_state(chunk, &pos.offset(dir.to_offset()).0);
+            let is_air = neighbor_state.to_state().is_air();
+            if (is_air && dir != BlockDirection::Up) || (!is_air && dir == BlockDirection::Up) {
+                return false;
+            }
+        }
+
+        true
     }
 }
+
+const fn is_cannot_replace(id: BlockId) -> bool {
+    matches!(
+        id,
+        BlockId::BEDROCK
+            | BlockId::NETHER_BRICKS
+            | BlockId::NETHER_BRICK_FENCE
+            | BlockId::NETHER_BRICK_STAIRS
+            | BlockId::NETHER_WART
+            | BlockId::CHEST
+            | BlockId::SPAWNER
+    )
+}

crates/pumpkin-world/src/generation/feature/features/desert_well.rs

@@ -1,7 +1,8 @@
 use pumpkin_data::{Block, BlockDirection};
+use pumpkin_nbt::compound::NbtCompound;
 use pumpkin_util::{
     math::{position::BlockPos, vector3::Vector3},
-    random::RandomGenerator,
+    random::{RandomGenerator, RandomImpl},
 };
 
 use crate::generation::{noise::WATER_BLOCK, proto_chunk::GenerationCache};
@@ -19,8 +20,8 @@ impl DesertWellFeature {
         chunk: &mut T,
         _min_y: i8,
         _height: u16,
-        _feature: pumpkin_data::placed_feature::PlacedFeature, // This placed feature
+        _feature: pumpkin_data::placed_feature::PlacedFeature,
-        _random: &mut RandomGenerator,
+        random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
         const CAN_GENERATE: Block = Block::SAND;
@@ -29,7 +30,7 @@ impl DesertWellFeature {
         while chunk.is_air(&block_pos.0) && block_pos.0.y > chunk.bottom_y() as i32 + 2 {
             block_pos = block_pos.down();
         }
-        let block = GenerationCache::get_block_state(chunk, &pos.0).to_block_id();
+        let block = GenerationCache::get_block_state(chunk, &block_pos.0).to_block_id();
         if CAN_GENERATE.id != block {
             return false;
         }
@@ -139,6 +140,33 @@ impl DesertWellFeature {
             );
         }
 
+        let water_center = block_pos.0;
+        let water_positions = [
+            water_center,
+            water_center.add(&Vector3::new(1, 0, 0)),
+            water_center.add(&Vector3::new(0, 0, 1)),
+            water_center.add(&Vector3::new(-1, 0, 0)),
+            water_center.add(&Vector3::new(0, 0, -1)),
+        ];
+        let pos1 =
+            water_positions[random.next_bounded_i32(5) as usize].add(&Vector3::new(0, -1, 0));
+        let pos2 =
+            water_positions[random.next_bounded_i32(5) as usize].add(&Vector3::new(0, -2, 0));
+        Self::place_sus_sand(chunk, &pos1);
+        Self::place_sus_sand(chunk, &pos2);
+
         true
     }
+
+    fn place_sus_sand<T: GenerationCache>(chunk: &mut T, pos: &Vector3<i32>) {
+        chunk.set_block_state(pos, Block::SUSPICIOUS_SAND.default_state);
+        let mut nbt = NbtCompound::new();
+        nbt.put_string("id", "minecraft:brushable_block".to_string());
+        nbt.put_int("x", pos.x);
+        nbt.put_int("y", pos.y);
+        nbt.put_int("z", pos.z);
+        nbt.put_string("LootTable", "minecraft:archaeology/desert_well".to_string());
+        nbt.put_long("LootTableSeed", BlockPos(*pos).as_long());
+        chunk.add_block_entity(pos, nbt);
+    }
 }

crates/pumpkin-world/src/generation/feature/features/drip_stone/mod.rs

@@ -1,7 +1,9 @@
 use crate::generation::proto_chunk::GenerationCache;
-use pumpkin_data::Block;
+use pumpkin_data::block_properties::{
-use pumpkin_data::BlockId;
+    PointedDripstoneLikeProperties, SpeleothemThickness, VerticalDirection,
+};
 use pumpkin_data::tag;
+use pumpkin_data::{Block, BlockDirection, BlockId, BlockState};
 use pumpkin_util::math::position::BlockPos;
 
 pub mod cluster;
@@ -20,3 +22,55 @@ pub(super) fn gen_dripstone<T: GenerationCache>(chunk: &mut T, pos: BlockPos) ->
     }
     false
 }
+
+pub(super) fn is_empty_or_water<T: GenerationCache>(chunk: &T, pos: BlockPos) -> bool {
+    let block = GenerationCache::get_block_state(chunk, &pos.0).to_block_id();
+    block == BlockId::AIR
+        || block == BlockId::CAVE_AIR
+        || block == BlockId::VOID_AIR
+        || block == BlockId::WATER
+}
+
+pub(super) fn grow_pointed_dripstone<T: GenerationCache>(
+    chunk: &mut T,
+    start_pos: BlockPos,
+    tip_direction: BlockDirection,
+    height: i32,
+    merged_tip: bool,
+) {
+    let mut cur = start_pos;
+    let vert_dir = match tip_direction {
+        BlockDirection::Down => VerticalDirection::Down,
+        _ => VerticalDirection::Up,
+    };
+
+    let mut thicknesses = Vec::with_capacity(height as usize);
+    if height >= 3 {
+        thicknesses.push(SpeleothemThickness::Base);
+        for _ in 0..(height - 3) {
+            thicknesses.push(SpeleothemThickness::Middle);
+        }
+    }
+    if height >= 2 {
+        thicknesses.push(SpeleothemThickness::Frustum);
+    }
+    if height >= 1 {
+        thicknesses.push(if merged_tip {
+            SpeleothemThickness::TipMerge
+        } else {
+            SpeleothemThickness::Tip
+        });
+    }
+
+    for thickness in thicknesses {
+        let is_water =
+            GenerationCache::get_block_state(chunk, &cur.0).to_block_id() == BlockId::WATER;
+        let mut props = PointedDripstoneLikeProperties::default(&Block::POINTED_DRIPSTONE);
+        props.thickness = thickness;
+        props.vertical_direction = vert_dir;
+        props.waterlogged = is_water;
+        let state_id = props.to_state_id(&Block::POINTED_DRIPSTONE);
+        chunk.set_block_state(&cur.0, BlockState::from_id(state_id));
+        cur = cur.offset(tip_direction.to_offset());
+    }
+}

crates/pumpkin-world/src/generation/feature/features/drip_stone/small.rs

@@ -20,9 +20,17 @@ impl SmallDripstoneFeature {
         pos: BlockPos,
     ) -> bool {
         if let Some(dir) = Self::get_direction(chunk, pos, random) {
-            let pos = pos.offset(dir.opposite().to_offset());
+            let root_pos = pos.offset(dir.opposite().to_offset());
-            self.gen_dripstone_blocks(chunk, pos, random);
+            self.gen_dripstone_blocks(chunk, root_pos, random);
-            // TODO
+            let next_pos = pos.offset(dir.to_offset());
+            let height = if random.next_f32() < self.taller_dripstone
+                && super::is_empty_or_water(chunk, next_pos)
+            {
+                2
+            } else {
+                1
+            };
+            super::grow_pointed_dripstone(chunk, pos, dir, height, false);
             return true;
         }
         false

crates/pumpkin-world/src/generation/feature/features/end_podium.rs

@@ -44,7 +44,6 @@ impl EndPodiumFeature {
         let mut oy = origin.0.y;
         let oz = origin.0.z;
 
-        // Podium spans [ox - 4, ox + 4] and [oz - 4, oz + 4]
         if ox + 4 < min_x || ox - 4 > max_x || oz + 4 < min_z || oz - 4 > max_z {
             return false;
         }
@@ -76,7 +75,7 @@ impl EndPodiumFeature {
                         if y < oy {
                             if closer_than_2_5 {
                                 chunk.set_block_state(&target, Block::BEDROCK.default_state);
-                            } else if self.active {
+                            } else {
                                 chunk.set_block_state(&target, Block::END_STONE.default_state);
                             }
                         } else if y > oy {

crates/pumpkin-world/src/generation/feature/features/end_spike.rs

@@ -182,7 +182,6 @@ impl EndSpikeFeature {
             chunk.set_block_state(&pos.0, Block::AIR.default_state);
         }
 
-        // Bedrock cap serves as the crystal base, fire sits on top of it
         chunk.set_block_state(
             &pumpkin_util::math::vector3::Vector3::new(
                 spike.center_x,
@@ -200,12 +199,10 @@ impl EndSpikeFeature {
             Block::FIRE.default_state,
         );
 
-        // Iron-bar cage for guarded spikes: 5x5 walls + open top frame at dy=3.
         if spike.guarded {
             for dy in 0i32..=3 {
                 for dx in -2i32..=2 {
                     for dz in -2i32..=2 {
-                        // Only place on perimeter walls and the top frame
                         let x_wall_present = dx.abs() == 2;
                         let z_wall_present = dz.abs() == 2;
                         let on_top = dy == 3;
@@ -213,15 +210,14 @@ impl EndSpikeFeature {
                             continue;
                         }
 
-                        // Connectivity rules
                         let x_edge = x_wall_present || on_top;
                         let z_edge = z_wall_present || on_top;
 
                         let mut props = OakFenceLikeProperties::default(&Block::IRON_BARS);
-                        props.north = x_edge && dz != 2;
+                        props.north = x_edge && dz != -2;
-                        props.south = x_edge && dz != -2;
+                        props.south = x_edge && dz != 2;
-                        props.west = z_edge && dx != 2;
+                        props.west = z_edge && dx != -2;
-                        props.east = z_edge && dx != -2;
+                        props.east = z_edge && dx != 2;
 
                         let bar_state = BlockState::from_id(props.to_state_id(&Block::IRON_BARS));
                         chunk.set_block_state(

crates/pumpkin-world/src/generation/feature/features/fallen_tree.rs

@@ -1,29 +1,204 @@
-use pumpkin_util::{math::position::BlockPos, random::RandomGenerator};
+use pumpkin_data::{Block, BlockDirection, BlockState};
+use pumpkin_util::{
+    math::{int_provider::IntProvider, position::BlockPos},
+    random::{RandomGenerator, RandomImpl},
+};
 
-use crate::{ProtoChunk, generation::block_state_provider::BlockStateProvider};
+use super::tree::{TreeFeature, decorator::TreeDecorator};
+use crate::{
+    generation::{block_state_provider::BlockStateProvider, proto_chunk::GenerationCache},
+    world::WorldPortalExt,
+};
 
 pub struct FallenTreeFeature {
     pub trunk_provider: BlockStateProvider,
+    pub log_length: IntProvider,
+    pub stump_decorators: Vec<TreeDecorator>,
+    pub log_decorators: Vec<TreeDecorator>,
 }
 
 impl FallenTreeFeature {
-    pub const fn generate(
+    #[allow(clippy::too_many_arguments)]
-        _chunk: &mut ProtoChunk,
+    pub fn generate<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
         _min_y: i8,
         _height: u16,
-        _feature: pumpkin_data::placed_feature::PlacedFeature, // This placed feature
+        _feature: pumpkin_data::placed_feature::PlacedFeature,
-        _random: &mut RandomGenerator,
+        random: &mut RandomGenerator,
-        _pos: BlockPos,
+        pos: BlockPos,
     ) -> bool {
-        false
+        self.place_stump(chunk, block_registry, random, pos);
+        let direction =
+            BlockDirection::from_cardinal_direction(BlockDirection::random_horizontal(random));
+        let log_length = self.log_length.get(random) - 2;
+        let mut log_start_pos =
+            pos.offset(direction.to_offset() * (2 + random.next_bounded_i32(2)));
+        Self::set_ground_height_for_fallen_log_start_pos(chunk, &mut log_start_pos);
+        if Self::can_place_entire_fallen_log(chunk, log_length, log_start_pos, direction) {
+            self.place_fallen_log(
+                chunk,
+                block_registry,
+                random,
+                log_length,
+                log_start_pos,
+                direction,
+            );
+        }
+        true
     }
 
-    // fn gen_stump(&self, chunk: &mut ProtoChunk, random: &mut RandomGenerator, pos: BlockPos) {
+    fn set_ground_height_for_fallen_log_start_pos<T: GenerationCache>(
-    //     // chunk.set_block_state(
+        chunk: &T,
-    //     //     pos.0.x,
+        log_start_pos: &mut BlockPos,
-    //     //     pos.0.y,
+    ) {
-    //     //     pos.0.z,
+        *log_start_pos = log_start_pos.up();
-    //     //     self.trunk_provider.get(random, pos, chunk),
+        for _ in 0..6 {
-    //     // );
+            if Self::may_place_on(chunk, *log_start_pos) {
-    // }
+                return;
+            }
+            *log_start_pos = log_start_pos.down();
+        }
+    }
+
+    fn place_stump<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        random: &mut RandomGenerator,
+        stump_pos: BlockPos,
+    ) {
+        let stump = self.place_log_block(chunk, block_registry, random, stump_pos, None);
+        Self::decorate_logs(
+            chunk,
+            block_registry,
+            random,
+            &[stump],
+            &self.stump_decorators,
+        );
+    }
+
+    fn can_place_entire_fallen_log<T: GenerationCache>(
+        chunk: &T,
+        log_length: i32,
+        mut log_start_pos: BlockPos,
+        direction: BlockDirection,
+    ) -> bool {
+        let mut gap_in_ground = 0;
+        let offset = direction.to_offset();
+
+        for _ in 0..log_length {
+            let state = GenerationCache::get_block_state(chunk, &log_start_pos.0);
+            if !TreeFeature::can_replace(state.to_state(), state.to_block_id()) {
+                return false;
+            }
+
+            if Self::is_over_solid_ground(chunk, log_start_pos) {
+                gap_in_ground = 0;
+            } else {
+                gap_in_ground += 1;
+                if gap_in_ground > 2 {
+                    return false;
+                }
+            }
+
+            log_start_pos = log_start_pos.offset(offset);
+        }
+
+        true
+    }
+
+    fn place_fallen_log<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        random: &mut RandomGenerator,
+        log_length: i32,
+        mut log_start_pos: BlockPos,
+        direction: BlockDirection,
+    ) {
+        let mut fallen_log = Vec::with_capacity(log_length.max(0) as usize);
+        let offset = direction.to_offset();
+
+        for _ in 0..log_length {
+            let placed = self.place_log_block(
+                chunk,
+                block_registry,
+                random,
+                log_start_pos,
+                Some(direction),
+            );
+            fallen_log.push(placed);
+            log_start_pos = log_start_pos.offset(offset);
+        }
+
+        Self::decorate_logs(
+            chunk,
+            block_registry,
+            random,
+            &fallen_log,
+            &self.log_decorators,
+        );
+    }
+
+    fn may_place_on<T: GenerationCache>(chunk: &T, block_pos: BlockPos) -> bool {
+        let state = GenerationCache::get_block_state(chunk, &block_pos.0);
+        TreeFeature::can_replace(state.to_state(), state.to_block_id())
+            && Self::is_over_solid_ground(chunk, block_pos)
+    }
+
+    fn is_over_solid_ground<T: GenerationCache>(chunk: &T, block_pos: BlockPos) -> bool {
+        let below = block_pos.down();
+        GenerationCache::get_block_state(chunk, &below.0)
+            .to_state()
+            .is_side_solid(BlockDirection::Up)
+    }
+
+    fn place_log_block<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        random: &mut RandomGenerator,
+        block_pos: BlockPos,
+        direction: Option<BlockDirection>,
+    ) -> BlockPos {
+        let mut state = self
+            .trunk_provider
+            .get(random, block_pos, chunk, block_registry);
+        if let Some(dir) = direction {
+            let block = Block::from_state_id(state.id);
+            let axis_str = match dir {
+                BlockDirection::East | BlockDirection::West => "x",
+                BlockDirection::North | BlockDirection::South => "z",
+                _ => "y",
+            };
+            if let Some(props) = block.properties(state.id) {
+                let prop_list = props.to_props();
+                if prop_list.iter().any(|(k, _)| *k == "axis") {
+                    let new_props: Vec<(&str, &str)> = prop_list
+                        .iter()
+                        .map(|(k, v)| (*k, if *k == "axis" { axis_str } else { *v }))
+                        .collect();
+                    let new_props_obj = block.from_properties(new_props.as_slice());
+                    let new_state_id = new_props_obj.to_state_id(block);
+                    state = BlockState::from_id(new_state_id);
+                }
+            }
+        }
+        chunk.set_block_state(&block_pos.0, state);
+        block_pos
+    }
+
+    fn decorate_logs<T: GenerationCache>(
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        random: &mut RandomGenerator,
+        logs: &[BlockPos],
+        decorators: &[TreeDecorator],
+    ) {
+        for decorator in decorators {
+            decorator.generate(chunk, block_registry, random, &[], logs, &[]);
+        }
+    }
 }

crates/pumpkin-world/src/generation/feature/features/fill_layer.rs

@@ -1,25 +1,30 @@
-use pumpkin_data::Block;
+use pumpkin_data::BlockState;
 use pumpkin_util::{math::position::BlockPos, random::RandomGenerator};
 
 use crate::generation::proto_chunk::GenerationCache;
 
-pub struct FillLayerFeature;
+pub struct FillLayerFeature {
+    pub height: i32,
+    pub state: &'static BlockState,
+}
 
 impl FillLayerFeature {
-    #[allow(clippy::unused_self)]
     pub fn generate<T: GenerationCache>(
         &self,
         chunk: &mut T,
-        _min_y: i8,
+        min_y: i8,
         _height: u16,
         _feature: pumpkin_data::placed_feature::PlacedFeature,
         _random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        for dx in -1..=1 {
+        let y = min_y as i32 + self.height;
-            for dz in -1..=1 {
+        for dx in 0..16 {
-                let target = BlockPos::new(pos.0.x + dx, pos.0.y, pos.0.z + dz);
+            for dz in 0..16 {
-                chunk.set_block_state(&target.0, Block::SNOW.default_state);
+                let target = BlockPos::new(pos.0.x + dx, y, pos.0.z + dz);
+                if chunk.is_air(&target.0) {
+                    chunk.set_block_state(&target.0, self.state);
+                }
             }
         }
         true

crates/pumpkin-world/src/generation/feature/features/freeze_top_layer.rs

@@ -4,8 +4,6 @@ use pumpkin_data::{Block, BlockState};
 use pumpkin_util::math::position::BlockPos;
 use pumpkin_util::random::RandomGenerator;
 
-const SEA_LEVEL: i32 = 63; // TODO: getSeaLevel() from the worldgen context instead of hardcoding
-
 pub struct FreezeTopLayerFeature;
 
 impl FreezeTopLayerFeature {
@@ -42,9 +40,10 @@ impl FreezeTopLayerFeature {
                 }
 
                 // Snow check
-                let top_temp = biome
+                let top_temp =
-                    .weather
+                    biome
-                    .compute_temperature(x as f64, y, z as f64, SEA_LEVEL);
+                        .weather
+                        .compute_temperature(x as f64, y, z as f64, chunk.get_sea_level());
 
                 if top_temp < 0.15 {
                     let top_raw = GenerationCache::get_block_state(chunk, &top_vec);

crates/pumpkin-world/src/generation/feature/features/huge_fungus.rs

@@ -1,56 +1,246 @@
-use pumpkin_data::Block;
+use pumpkin_data::{Block, BlockState};
-use pumpkin_util::{math::position::BlockPos, random::RandomGenerator, random::RandomImpl};
+use pumpkin_util::{
+    math::position::BlockPos,
+    random::{RandomGenerator, RandomImpl},
+};
 
-use crate::generation::proto_chunk::GenerationCache;
+use super::weeping_vines::WeepingVinesFeature;
+use crate::{
+    generation::{block_predicate::BlockPredicate, proto_chunk::GenerationCache},
+    world::WorldPortalExt,
+};
 
-pub struct HugeFungusFeature;
+pub struct HugeFungusFeature {
+    pub valid_base_block: &'static BlockState,
+    pub stem_state: &'static BlockState,
+    pub hat_state: &'static BlockState,
+    pub decor_state: &'static BlockState,
+    pub replaceable_blocks: BlockPredicate,
+    pub planted: bool,
+}
 
 impl HugeFungusFeature {
-    #[allow(clippy::unused_self)]
+    #[allow(clippy::too_many_arguments)]
     pub fn generate<T: GenerationCache>(
         &self,
         chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
         _min_y: i8,
         _height: u16,
         _feature: pumpkin_data::placed_feature::PlacedFeature,
         random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        let height = random.next_bounded_i32(4) + 6;
+        let below = pos.down();
-        let is_warped = random.next_bool();
+        let below_block = GenerationCache::get_block_state(chunk, &below.0).to_block_id();
-
+        let valid_base_id = Block::from_state_id(self.valid_base_block.id).id;
-        let stem_state = if is_warped {
+        if below_block != valid_base_id {
-            Block::WARPED_STEM.default_state
+            return false;
-        } else {
-            Block::CRIMSON_STEM.default_state
-        };
-        let wart_state = if is_warped {
-            Block::WARPED_WART_BLOCK.default_state
-        } else {
-            Block::NETHER_WART_BLOCK.default_state
-        };
-
-        for i in 0..height {
-            let stem_pos = BlockPos::new(pos.0.x, pos.0.y + i, pos.0.z);
-            chunk.set_block_state(&stem_pos.0, stem_state);
         }
 
-        let cap_y = pos.0.y + height - 2;
+        let mut total_height = random.next_inbetween_i32(4, 13);
-        for dy in 0..=3 {
+        if random.next_bounded_i32(12) == 0 {
-            let radius = if dy == 0 || dy == 3 { 1 } else { 2 };
+            total_height *= 2;
-            for dx in -radius..=radius {
+        }
-                for dz in -radius..=radius {
+
-                    let cap_pos = BlockPos::new(pos.0.x + dx, cap_y + dy, pos.0.z + dz);
+        if !self.planted && pos.0.y + total_height + 1 >= chunk.top_y() as i32 {
-                    let block_state = if (dx == 0 || dz == 0) && dy == 1 && random.next_f32() < 0.3
+            return false;
-                    {
+        }
-                        Block::SHROOMLIGHT.default_state
+
-                    } else {
+        let is_huge = !self.planted && random.next_f32() < 0.06;
-                        wart_state
+        chunk.set_block_state(&pos.0, Block::AIR.default_state);
-                    };
+        self.place_stem(chunk, block_registry, random, pos, total_height, is_huge);
-                    chunk.set_block_state(&cap_pos.0, block_state);
+        self.place_hat(chunk, block_registry, random, pos, total_height, is_huge);
+        true
+    }
+
+    fn is_replaceable<T: GenerationCache>(
+        &self,
+        chunk: &T,
+        block_registry: &dyn WorldPortalExt,
+        pos: BlockPos,
+        check_non_replaceable_plants: bool,
+    ) -> bool {
+        if chunk.is_air(&pos.0)
+            || GenerationCache::get_block_state(chunk, &pos.0)
+                .to_state()
+                .is_air()
+        {
+            true
+        } else if check_non_replaceable_plants {
+            self.replaceable_blocks.test(block_registry, chunk, &pos)
+        } else {
+            false
+        }
+    }
+
+    fn place_stem<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        random: &mut RandomGenerator,
+        pos: BlockPos,
+        total_height: i32,
+        is_huge: bool,
+    ) {
+        let stem_radius = i32::from(is_huge);
+
+        for dx in -stem_radius..=stem_radius {
+            for dz in -stem_radius..=stem_radius {
+                let corner_of_huge_stem =
+                    is_huge && dx.abs() == stem_radius && dz.abs() == stem_radius;
+
+                for dy in 0..total_height {
+                    let block_pos = pos.add(dx, dy, dz);
+                    if self.is_replaceable(chunk, block_registry, block_pos, true) {
+                        if self.planted {
+                            chunk.set_block_state(&block_pos.0, self.stem_state);
+                        } else if corner_of_huge_stem {
+                            if random.next_f32() < 0.1 {
+                                chunk.set_block_state(&block_pos.0, self.stem_state);
+                            }
+                        } else {
+                            chunk.set_block_state(&block_pos.0, self.stem_state);
+                        }
+                    }
                 }
             }
         }
-        true
+    }
+
+    fn place_hat<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        random: &mut RandomGenerator,
+        pos: BlockPos,
+        total_height: i32,
+        is_huge: bool,
+    ) {
+        let place_vines = Block::from_state_id(self.hat_state.id).id == Block::NETHER_WART_BLOCK.id;
+        let hat_height = (random.next_bounded_i32(1 + total_height / 3) + 5).min(total_height);
+        let hat_start_y = total_height - hat_height;
+
+        for dy in hat_start_y..=total_height {
+            let mut radius = if hat_height > 8 && dy < hat_start_y + 4 {
+                3
+            } else if dy < total_height - random.next_bounded_i32(3) {
+                2
+            } else {
+                1
+            };
+            if is_huge {
+                radius += 1;
+            }
+
+            for dx in -radius..=radius {
+                for dz in -radius..=radius {
+                    let is_edge_x = dx == -radius || dx == radius;
+                    let is_edge_z = dz == -radius || dz == radius;
+                    let inside = !is_edge_x && !is_edge_z && dy != total_height;
+                    let corner = is_edge_x && is_edge_z;
+                    let is_hat_bottom = dy < hat_start_y + 3;
+                    let block_pos = pos.add(dx, dy, dz);
+
+                    if self.is_replaceable(chunk, block_registry, block_pos, false) {
+                        if is_hat_bottom {
+                            if !inside {
+                                self.place_hat_drop_block(chunk, random, block_pos, place_vines);
+                            }
+                        } else if inside {
+                            self.place_hat_block(
+                                chunk,
+                                random,
+                                block_pos,
+                                0.1,
+                                0.2,
+                                if place_vines { 0.1 } else { 0.0 },
+                            );
+                        } else if corner {
+                            self.place_hat_block(
+                                chunk,
+                                random,
+                                block_pos,
+                                0.01,
+                                0.7,
+                                if place_vines { 0.083 } else { 0.0 },
+                            );
+                        } else {
+                            self.place_hat_block(
+                                chunk,
+                                random,
+                                block_pos,
+                                5.0e-4,
+                                0.98,
+                                if place_vines { 0.07 } else { 0.0 },
+                            );
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    fn place_hat_block<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        random: &mut RandomGenerator,
+        block_pos: BlockPos,
+        decor_prob: f32,
+        hat_prob: f32,
+        vines_prob: f32,
+    ) {
+        if random.next_f32() < decor_prob {
+            chunk.set_block_state(&block_pos.0, self.decor_state);
+        } else if random.next_f32() < hat_prob {
+            chunk.set_block_state(&block_pos.0, self.hat_state);
+            if random.next_f32() < vines_prob {
+                Self::try_place_weeping_vines(chunk, random, block_pos);
+            }
+        }
+    }
+
+    fn place_hat_drop_block<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        random: &mut RandomGenerator,
+        block_pos: BlockPos,
+        place_vines: bool,
+    ) {
+        let below = block_pos.down();
+        let below_id = GenerationCache::get_block_state(chunk, &below.0).to_block_id();
+        let hat_id = Block::from_state_id(self.hat_state.id).id;
+
+        if below_id == hat_id {
+            chunk.set_block_state(&block_pos.0, self.hat_state);
+        } else if random.next_f32() < 0.15 {
+            chunk.set_block_state(&block_pos.0, self.hat_state);
+            if place_vines && random.next_bounded_i32(11) == 0 {
+                Self::try_place_weeping_vines(chunk, random, block_pos);
+            }
+        }
+    }
+
+    fn try_place_weeping_vines<T: GenerationCache>(
+        chunk: &mut T,
+        random: &mut RandomGenerator,
+        hat_block_pos: BlockPos,
+    ) {
+        let place_pos = hat_block_pos.down();
+        if chunk.is_air(&place_pos.0) {
+            let mut goal_vine_height = random.next_inbetween_i32(1, 5);
+            if random.next_bounded_i32(7) == 0 {
+                goal_vine_height *= 2;
+            }
+
+            WeepingVinesFeature::place_weeping_vines_column(
+                chunk,
+                random,
+                place_pos,
+                goal_vine_height,
+                23,
+                25,
+            );
+        }
     }
 }

crates/pumpkin-world/src/generation/feature/features/iceberg.rs

@@ -8,8 +8,6 @@ use pumpkin_util::{
 
 use crate::{block::BlockStateCodec, generation::proto_chunk::GenerationCache};
 
-const SEA_LEVEL: i32 = 63; // TODO: use getSeaLevel() instead of hardcoding
-
 pub struct IcebergFeature {
     pub main_block: BlockStateCodec,
 }
@@ -25,7 +23,7 @@ impl IcebergFeature {
         random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        let origin = Vector3::new(pos.0.x, SEA_LEVEL, pos.0.z);
+        let origin = Vector3::new(pos.0.x, chunk.get_sea_level(), pos.0.z);
         let main_block = self.main_block.get_state();
 
         let snow_on_top = random.next_f64() > 0.7;

crates/pumpkin-world/src/generation/feature/features/kelp.rs

@@ -1,10 +1,11 @@
-use crate::generation::proto_chunk::GenerationCache;
+use pumpkin_data::{Block, BlockDirection, BlockState, block_properties::KelpLikeProperties, tag};
-use pumpkin_data::{Block, BlockState};
 use pumpkin_util::{
     math::position::BlockPos,
     random::{RandomGenerator, RandomImpl},
 };
 
+use crate::generation::proto_chunk::GenerationCache;
+
 pub struct KelpFeature;
 
 impl KelpFeature {
@@ -19,67 +20,66 @@ impl KelpFeature {
     ) -> bool {
         let mut placed = 0;
 
-        // Start on the ocean floor
         let y = chunk.ocean_floor_height_exclusive(pos.0.x, pos.0.z);
         let mut kelp_pos = BlockPos::new(pos.0.x, y, pos.0.z);
 
-        // Must be in water
         if GenerationCache::get_block_state(chunk, &kelp_pos.0).to_block_id() == Block::WATER {
-            let height_rand = 1 + random.next_bounded_i32(10);
+            let height = 1 + random.next_bounded_i32(10);
+
+            for h in 0..=height {
+                let above = kelp_pos.up();
+                let can_survive = Self::can_survive(chunk, kelp_pos);
 
-            // Iterate from base up to height_rand
-            for h in 0..=height_rand {
-                // Check there is water at this position and one above
                 if GenerationCache::get_block_state(chunk, &kelp_pos.0).to_block_id()
                     == Block::WATER
-                    && GenerationCache::get_block_state(
+                    && GenerationCache::get_block_state(chunk, &above.0).to_block_id()
-                        chunk,
-                        &BlockPos::new(kelp_pos.0.x, kelp_pos.0.y + 1, kelp_pos.0.z).0,
-                    )
-                    .to_block_id()
                         == Block::WATER
+                    && can_survive
                 {
-                    // If this is the last iteration place the kelp head with age
+                    if h == height {
-                    if h == height_rand {
+                        let age = (random.next_bounded_i32(4) + 20) as u8;
-                        let age = random.next_bounded_i32(4) + 20;
+                        let mut props = KelpLikeProperties::default(&Block::KELP);
-                        // Clamp in case it goes past available states
+                        props.age = age;
-                        let age = age.min((Block::KELP.states.len() - 1) as i32) as usize;
+                        let state_id = props.to_state_id(&Block::KELP);
-                        let state_id = Block::KELP.states[age].id;
+                        chunk.set_block_state(&kelp_pos.0, BlockState::from_id(state_id));
-                        let state = BlockState::from_id(state_id);
-                        chunk.set_block_state(&kelp_pos.0, state);
                         placed += 1;
                     } else {
-                        // Place kelp plant body
+                        chunk.set_block_state(&kelp_pos.0, Block::KELP_PLANT.default_state);
-                        let state_id = Block::KELP_PLANT.default_state.id;
-                        let state = BlockState::from_id(state_id);
-                        chunk.set_block_state(&kelp_pos.0, state);
                     }
                 } else if h > 0 {
-                    // Can't place further but we have already placed at least one segment, try to put head below
+                    let below = kelp_pos.down();
-                    let below = BlockPos::new(kelp_pos.0.x, kelp_pos.0.y - 1, kelp_pos.0.z);
+                    let below_below = below.down();
-                    // Check head block can survive and that below-below is not a kelp head
+                    let below_below_id =
-                    if GenerationCache::get_block_state(chunk, &below.0).to_block_id()
+                        GenerationCache::get_block_state(chunk, &below_below.0).to_block_id();
-                        == Block::WATER
+                    if Self::can_survive(chunk, below) && below_below_id != Block::KELP.id {
-                        && GenerationCache::get_block_state(
+                        let age = (random.next_bounded_i32(4) + 20) as u8;
-                            chunk,
+                        let mut props = KelpLikeProperties::default(&Block::KELP);
-                            &BlockPos::new(below.0.x, below.0.y - 1, below.0.z).0,
+                        props.age = age;
-                        )
+                        let state_id = props.to_state_id(&Block::KELP);
-                        .to_block_id()
+                        chunk.set_block_state(&below.0, BlockState::from_id(state_id));
-                            != Block::KELP
-                    {
-                        let age = random.next_bounded_i32(4) + 20;
-                        let age = age.min((Block::KELP.states.len() - 1) as i32) as usize;
-                        let state_id = Block::KELP.states[age].id;
-                        let state = BlockState::from_id(state_id);
-                        chunk.set_block_state(&below.0, state);
                         placed += 1;
                     }
                     break;
                 }
-                kelp_pos = BlockPos::new(kelp_pos.0.x, kelp_pos.0.y + 1, kelp_pos.0.z);
+
+                kelp_pos = kelp_pos.up();
             }
         }
 
         placed > 0
     }
+
+    fn can_survive<T: GenerationCache>(chunk: &T, pos: BlockPos) -> bool {
+        let below = pos.down();
+        let below_state = GenerationCache::get_block_state(chunk, &below.0);
+        let below_id = below_state.to_block_id();
+
+        if below_id.has_tag(tag::Block::MINECRAFT_CANNOT_SUPPORT_KELP) {
+            return false;
+        }
+
+        below_id == Block::KELP.id
+            || below_id == Block::KELP_PLANT.id
+            || below_state.to_state().is_side_solid(BlockDirection::Up)
+    }
 }

crates/pumpkin-world/src/generation/feature/features/monster_room.rs

@@ -7,9 +7,6 @@ use pumpkin_util::{
 
 use crate::generation::proto_chunk::GenerationCache;
 
-/// The three mob types that can appear in a dungeon spawner.
-///
-/// Skeleton 25%, Zombie 50%, Spider 25%.
 const DUNGEON_MOBS: [&str; 4] = [
     "minecraft:skeleton",
     "minecraft:zombie",
@@ -20,7 +17,6 @@ const DUNGEON_MOBS: [&str; 4] = [
 pub struct DungeonFeature;
 
 impl DungeonFeature {
-    /// Generate a monster room (dungeon) at `pos`.
     #[expect(clippy::too_many_lines)]
     pub fn generate<T: GenerationCache>(
         chunk: &mut T,
@@ -46,13 +42,12 @@ impl DungeonFeature {
                     let solid = !chunk.is_air(&check_pos);
 
                     if dy == -1 && !solid {
-                        return false; // Floor has a gap
+                        return false;
                     }
                     if dy == 4 && !solid {
-                        return false; // Ceiling has a gap
+                        return false;
                     }
 
-                    // Wall openings
                     let on_wall = dx == min_x || dx == max_x || dz == min_z || dz == max_z;
                     if on_wall
                         && dy == 0
@@ -94,18 +89,15 @@ impl DungeonFeature {
                             chunk.set_block_state(&wall_pos, Block::CAVE_AIR.default_state);
                         } else if cur_solid && !is_chest {
                             if dy == -1 && random.next_bounded_i32(4) != 0 {
-                                // 75% mossy cobblestone
                                 chunk.set_block_state(
                                     &wall_pos,
                                     Block::MOSSY_COBBLESTONE.default_state,
                                 );
                             } else {
-                                // 25% cobblestone (or 100% if it's not the floor)
                                 chunk.set_block_state(&wall_pos, Block::COBBLESTONE.default_state);
                             }
                         }
                     } else {
-                        // Clear interior, but preserve chests and spawners
                         let state = GenerationCache::get_block_state(chunk, &wall_pos);
                         let is_chest = state.to_block() == &Block::CHEST;
                         let is_spawner = state.to_block() == &Block::SPAWNER;
@@ -117,7 +109,6 @@ impl DungeonFeature {
             }
         }
 
-        // Chest placement attempts (rooms have 1-2 chests)
         for _ in 0..2 {
             for _ in 0..3 {
                 let cx = pos.0.x + random.next_bounded_i32(xr * 2 + 1) - xr;
@@ -129,20 +120,17 @@ impl DungeonFeature {
                     continue;
                 }
 
-                // Count solid horizontal neighbours
                 let wall_count = BlockDirection::horizontal()
                     .iter()
                     .filter(|d| !chunk.is_air(&chest_pos.add(&d.to_offset())))
                     .count();
 
                 if wall_count == 1 {
-                    // Orient the chest toward its single solid neighbor.
                     let facing_dir = BlockDirection::horizontal()
                         .iter()
                         .find(|d| !chunk.is_air(&chest_pos.add(&d.to_offset())))
                         .copied();
 
-                    // Build the chest state: face away from the wall.
                     let chest_state = facing_dir.map_or(Block::CHEST.default_state, |dir| {
                         use pumpkin_data::block_properties::ChestLikeProperties;
                         let mut props = ChestLikeProperties::default(&Block::CHEST);
@@ -153,7 +141,6 @@ impl DungeonFeature {
 
                     chunk.set_block_state(&chest_pos, chest_state);
 
-                    // Write the block-entity NBT with a deferred loot table.
                     let loot_seed = random.next_i64();
                     let mut chest_nbt = NbtCompound::new();
                     chest_nbt.put_string("id", "minecraft:chest".to_string());
@@ -170,7 +157,6 @@ impl DungeonFeature {
             }
         }
 
-        // TODO: set spawner entity type
         let mob = DUNGEON_MOBS[random.next_bounded_i32(DUNGEON_MOBS.len() as i32) as usize];
         chunk.set_block_state(&pos.0, Block::SPAWNER.default_state);
 

crates/pumpkin-world/src/generation/feature/features/multiface_growth.rs

@@ -1,9 +1,20 @@
-use pumpkin_data::Block;
+use pumpkin_data::{Block, BlockDirection, BlockState, block_properties::GlowLichenLikeProperties};
-use pumpkin_util::{math::position::BlockPos, random::RandomGenerator};
+use pumpkin_util::{
+    math::position::BlockPos,
+    random::{RandomGenerator, RandomImpl},
+};
 
 use crate::generation::proto_chunk::GenerationCache;
 
-pub struct MultifaceGrowthFeature;
+pub struct MultifaceGrowthFeature {
+    pub place_block: pumpkin_data::BlockId,
+    pub search_range: i32,
+    pub can_place_on_floor: bool,
+    pub can_place_on_ceiling: bool,
+    pub can_place_on_wall: bool,
+    pub chance_of_spreading: f32,
+    pub can_be_placed_on: Vec<pumpkin_data::BlockId>,
+}
 
 impl MultifaceGrowthFeature {
     #[allow(clippy::unused_self)]
@@ -13,27 +24,133 @@ impl MultifaceGrowthFeature {
         _min_y: i8,
         _height: u16,
         _feature: pumpkin_data::placed_feature::PlacedFeature,
-        _random: &mut RandomGenerator,
+        random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        let mut generated = false;
+        if !Self::is_air_or_water(chunk, pos) {
-        let directions = [
+            return false;
-            (1, 0, 0),
+        }
-            (-1, 0, 0),
+
-            (0, 1, 0),
+        let shuffled_dirs = self.get_shuffled_directions(random);
-            (0, -1, 0),
+        if self.place_growth_if_possible(chunk, pos, random, &shuffled_dirs) {
-            (0, 0, 1),
+            return true;
-            (0, 0, -1),
+        }
-        ];
+
-        for &(dx, dy, dz) in &directions {
+        for search_direction in shuffled_dirs {
-            let neighbor = BlockPos::new(pos.0.x + dx, pos.0.y + dy, pos.0.z + dz);
+            let placement_directions =
-            let state = GenerationCache::get_block_state(chunk, &neighbor.0);
+                self.get_shuffled_directions_except(random, search_direction.opposite());
-            if state.to_block_id() != Block::AIR.id && chunk.is_air(&pos.0) {
+            let mut cur_pos = pos;
-                chunk.set_block_state(&pos.0, Block::GLOW_LICHEN.default_state);
+
-                generated = true;
+            for _ in 0..self.search_range {
-                break;
+                cur_pos = cur_pos.offset(search_direction.to_offset());
+                let block_id = GenerationCache::get_block_state(chunk, &cur_pos.0).to_block_id();
+                if !Self::is_air_or_water(chunk, cur_pos) && block_id != self.place_block {
+                    break;
+                }
+
+                if self.place_growth_if_possible(chunk, cur_pos, random, &placement_directions) {
+                    return true;
+                }
             }
         }
-        generated
+
+        false
+    }
+
+    fn place_growth_if_possible<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        pos: BlockPos,
+        _random: &mut RandomGenerator,
+        placement_directions: &[BlockDirection],
+    ) -> bool {
+        for &direction in placement_directions {
+            let neighbor_pos = pos.offset(direction.to_offset());
+            let neighbor_id =
+                GenerationCache::get_block_state(chunk, &neighbor_pos.0).to_block_id();
+
+            if self.can_be_placed_on.contains(&neighbor_id) {
+                let is_water = GenerationCache::get_block_state(chunk, &pos.0).to_block_id()
+                    == Block::WATER.id;
+                let block = Block::from_id(self.place_block);
+
+                let mut props = GlowLichenLikeProperties {
+                    down: direction == BlockDirection::Down,
+                    up: direction == BlockDirection::Up,
+                    north: direction == BlockDirection::North,
+                    south: direction == BlockDirection::South,
+                    west: direction == BlockDirection::West,
+                    east: direction == BlockDirection::East,
+                    waterlogged: is_water,
+                };
+
+                let cur_state = GenerationCache::get_block_state(chunk, &pos.0);
+                if cur_state.to_block_id() == self.place_block
+                    && (self.place_block == Block::GLOW_LICHEN.id
+                        || self.place_block == Block::SCULK_VEIN.id)
+                {
+                    let cur_props = GlowLichenLikeProperties::from_state_id(cur_state);
+                    props.down |= cur_props.down;
+                    props.up |= cur_props.up;
+                    props.north |= cur_props.north;
+                    props.south |= cur_props.south;
+                    props.west |= cur_props.west;
+                    props.east |= cur_props.east;
+                }
+
+                let state_id = props.to_state_id(block);
+                chunk.set_block_state(&pos.0, BlockState::from_id(state_id));
+                return true;
+            }
+        }
+
+        false
+    }
+
+    fn get_valid_directions(&self) -> Vec<BlockDirection> {
+        let mut dirs = Vec::with_capacity(6);
+        if self.can_place_on_ceiling {
+            dirs.push(BlockDirection::Up);
+        }
+        if self.can_place_on_floor {
+            dirs.push(BlockDirection::Down);
+        }
+        if self.can_place_on_wall {
+            dirs.extend(
+                BlockDirection::horizontal_worldgen().map(BlockDirection::from_cardinal_direction),
+            );
+        }
+        dirs
+    }
+
+    fn get_shuffled_directions(&self, random: &mut RandomGenerator) -> Vec<BlockDirection> {
+        let mut dirs = self.get_valid_directions();
+        for i in (1..dirs.len()).rev() {
+            let j = random.next_bounded_i32((i + 1) as i32) as usize;
+            dirs.swap(i, j);
+        }
+        dirs
+    }
+
+    fn get_shuffled_directions_except(
+        &self,
+        random: &mut RandomGenerator,
+        exclude: BlockDirection,
+    ) -> Vec<BlockDirection> {
+        let mut dirs: Vec<BlockDirection> = self
+            .get_valid_directions()
+            .into_iter()
+            .filter(|&d| d != exclude)
+            .collect();
+        for i in (1..dirs.len()).rev() {
+            let j = random.next_bounded_i32((i + 1) as i32) as usize;
+            dirs.swap(i, j);
+        }
+        dirs
+    }
+
+    fn is_air_or_water<T: GenerationCache>(chunk: &T, pos: BlockPos) -> bool {
+        let id = GenerationCache::get_block_state(chunk, &pos.0).to_block_id();
+        id == Block::AIR.id || id == Block::WATER.id
     }
 }

crates/pumpkin-world/src/generation/feature/features/ore.rs

@@ -50,12 +50,11 @@ impl OreFeature {
         let q = 2 * (g.ceil() as i32 + i);
         let r = 2 * (2 + i);
 
-        for _ in n..=(n + q) {
+        for xprobe in n..=(n + q) {
-            for _ in p..=(p + q) {
+            for zprobe in p..=(p + q) {
-                if o > chunk.ocean_floor_height_exclusive(pos.0.x, pos.0.z) {
+                if o <= chunk.ocean_floor_height_exclusive(xprobe, zprobe) {
-                    continue;
+                    return self.generate_vein_part(chunk, random, d, e, h, j, l, m, n, o, p, q, r);
                 }
-                return self.generate_vein_part(chunk, random, d, e, h, j, l, m, n, o, p, q, r);
             }
         }
         false

crates/pumpkin-world/src/generation/feature/features/replace_single_block.rs

@@ -1,22 +1,29 @@
-use pumpkin_data::Block;
 use pumpkin_util::{math::position::BlockPos, random::RandomGenerator};
 
+use crate::generation::feature::features::ore::OreTarget;
 use crate::generation::proto_chunk::GenerationCache;
 
-pub struct ReplaceSingleBlockFeature;
+pub struct ReplaceSingleBlockFeature {
+    pub targets: Vec<OreTarget>,
+}
 
 impl ReplaceSingleBlockFeature {
-    #[allow(clippy::unused_self)]
     pub fn generate<T: GenerationCache>(
         &self,
         chunk: &mut T,
         _min_y: i8,
         _height: u16,
         _feature: pumpkin_data::placed_feature::PlacedFeature,
-        _random: &mut RandomGenerator,
+        random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        chunk.set_block_state(&pos.0, Block::SAND.default_state);
+        let block_state = GenerationCache::get_block_state(chunk, &pos.0);
+        for target in &self.targets {
+            if target.target.test(block_state, random) {
+                chunk.set_block_state(&pos.0, target.state);
+                break;
+            }
+        }
         true
     }
 }

crates/pumpkin-world/src/generation/feature/features/root_system.rs

@@ -1,3 +1,4 @@
+use pumpkin_data::{Block, BlockDirection};
 use pumpkin_util::{
     math::position::BlockPos,
     random::{RandomGenerator, RandomImpl},
@@ -36,52 +37,156 @@ impl RootSystemFeature {
         random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        if !self.allowed_tree_position.test(block_registry, chunk, &pos) {
+        if !chunk.is_air(&pos.0) {
             return false;
         }
 
-        if !self.can_place_tree(chunk, pos) {
+        let mut working_pos = pos;
-            return false;
+        if self.place_dirt_and_tree(
-        }
-
-        if !self.feature.generate(
             chunk,
             block_registry,
             min_y,
             height,
             feature_name,
             random,
+            &mut working_pos,
             pos,
         ) {
-            return false;
+            self.place_roots(chunk, block_registry, random, pos);
         }
 
-        self.place_roots(chunk, block_registry, random, pos);
         true
     }
 
-    fn can_place_tree<T: GenerationCache>(&self, chunk: &T, pos: BlockPos) -> bool {
+    fn space_for_tree<T: GenerationCache>(&self, chunk: &T, pos: BlockPos) -> bool {
-        let mut mutable_pos = pos;
+        let mut column_up = pos;
         for i in 1..=self.required_vertical_space_for_tree {
-            mutable_pos = mutable_pos.add(0, 1, 0);
+            column_up = column_up.up();
-            if !self.is_allowed_tree_space(chunk, mutable_pos, i) {
+            let state = GenerationCache::get_block_state(chunk, &column_up.0);
+            if !self.is_allowed_tree_space(state.to_block_id(), i) {
                 return false;
             }
         }
         true
     }
 
-    fn is_allowed_tree_space<T: GenerationCache>(
+    fn is_allowed_tree_space(
         &self,
-        chunk: &T,
+        block_id: pumpkin_data::BlockId,
-        pos: BlockPos,
+        blocks_above_origin: i32,
-        vertical_space: i32,
     ) -> bool {
-        if chunk.is_air(&pos.0) {
+        if block_id == Block::AIR.id {
             return true;
         }
-        // TODO: check for water.
+        let blocks_above_ground = blocks_above_origin + 1;
-        vertical_space <= self.allowed_vertical_water_for_tree
+        blocks_above_ground <= self.allowed_vertical_water_for_tree && block_id == Block::WATER.id
+    }
+
+    #[allow(clippy::too_many_arguments)]
+    fn place_dirt_and_tree<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        min_y: i8,
+        height: u16,
+        feature_name: pumpkin_data::placed_feature::PlacedFeature,
+        random: &mut RandomGenerator,
+        working_pos: &mut BlockPos,
+        pos: BlockPos,
+    ) -> bool {
+        for y in 0..self.root_column_max_height {
+            *working_pos = working_pos.up();
+            if chunk.top_block_height_exclusive(working_pos.0.x, working_pos.0.z) < working_pos.0.y
+            {
+                return false;
+            }
+
+            if self
+                .allowed_tree_position
+                .test(block_registry, chunk, working_pos)
+                && self.space_for_tree(chunk, *working_pos)
+            {
+                let below_pos = working_pos.down();
+                let below_state = GenerationCache::get_block_state(chunk, &below_pos.0);
+                if below_state.to_block_id() == Block::LAVA.id
+                    || !below_state.to_state().is_side_solid(BlockDirection::Up)
+                {
+                    return false;
+                }
+
+                if self.feature.generate(
+                    chunk,
+                    block_registry,
+                    min_y,
+                    height,
+                    feature_name,
+                    random,
+                    *working_pos,
+                ) {
+                    self.place_dirt(chunk, block_registry, random, pos, pos.0.y + y);
+                    return true;
+                }
+            }
+        }
+
+        false
+    }
+
+    fn place_dirt<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        random: &mut RandomGenerator,
+        origin: BlockPos,
+        target_height: i32,
+    ) {
+        let origin_x = origin.0.x;
+        let origin_z = origin.0.z;
+
+        for y in origin.0.y..target_height {
+            self.place_rooted_dirt(
+                chunk,
+                block_registry,
+                random,
+                origin_x,
+                origin_z,
+                BlockPos::new(origin_x, y, origin_z),
+            );
+        }
+    }
+
+    fn place_rooted_dirt<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        random: &mut RandomGenerator,
+        origin_x: i32,
+        origin_z: i32,
+        mut working_pos: BlockPos,
+    ) {
+        let root_radius = self.root_radius.max(1);
+
+        for _ in 0..self.root_placement_attempts {
+            working_pos = working_pos.add(
+                random.next_bounded_i32(root_radius) - random.next_bounded_i32(root_radius),
+                0,
+                random.next_bounded_i32(root_radius) - random.next_bounded_i32(root_radius),
+            );
+
+            if self
+                .root_replaceable
+                .test(block_registry, chunk, &working_pos)
+            {
+                chunk.set_block_state(
+                    &working_pos.0,
+                    self.root_state_provider
+                        .get(random, working_pos, chunk, block_registry),
+                );
+            }
+
+            working_pos.0.x = origin_x;
+            working_pos.0.z = origin_z;
+        }
     }
 
     fn place_roots<T: GenerationCache>(
@@ -91,92 +196,29 @@ impl RootSystemFeature {
         random: &mut RandomGenerator,
         pos: BlockPos,
     ) {
-        self.place_rooted_dirt(chunk, block_registry, random, pos);
+        let root_radius = self.hanging_root_radius.max(1);
-        self.place_hanging_roots(chunk, block_registry, random, pos);
+        let vertical_span = self.hanging_roots_vertical_span.max(1);
-    }
 
-    fn place_rooted_dirt<T: GenerationCache>(
-        &self,
-        chunk: &mut T,
-        block_registry: &dyn WorldPortalExt,
-        random: &mut RandomGenerator,
-        pos: BlockPos,
-    ) {
-        for _ in 0..self.root_placement_attempts {
-            let mut mutable_pos = pos.add(
-                random.next_bounded_i32(self.root_radius.max(1))
-                    - random.next_bounded_i32(self.root_radius.max(1)),
-                0,
-                random.next_bounded_i32(self.root_radius.max(1))
-                    - random.next_bounded_i32(self.root_radius.max(1)),
-            );
-
-            if self
-                .root_replaceable
-                .test(block_registry, chunk, &mutable_pos)
-            {
-                chunk.set_block_state(
-                    &mutable_pos.0,
-                    self.root_state_provider.get_with_context(
-                        block_registry,
-                        chunk,
-                        random,
-                        mutable_pos,
-                    ),
-                );
-            }
-
-            for _ in 0..self.root_column_max_height {
-                mutable_pos = mutable_pos.add(0, -1, 0);
-                if chunk.out_of_height(mutable_pos.0.y as i16)
-                    || !self
-                        .root_replaceable
-                        .test(block_registry, chunk, &mutable_pos)
-                {
-                    break;
-                }
-                chunk.set_block_state(
-                    &mutable_pos.0,
-                    self.root_state_provider.get_with_context(
-                        block_registry,
-                        chunk,
-                        random,
-                        mutable_pos,
-                    ),
-                );
-            }
-        }
-    }
-
-    fn place_hanging_roots<T: GenerationCache>(
-        &self,
-        chunk: &mut T,
-        block_registry: &dyn WorldPortalExt,
-        random: &mut RandomGenerator,
-        pos: BlockPos,
-    ) {
         for _ in 0..self.hanging_root_placement_attempts {
-            let mutable_pos = pos.add(
+            let working_pos = pos.add(
-                random.next_bounded_i32(self.hanging_root_radius.max(1))
+                random.next_bounded_i32(root_radius) - random.next_bounded_i32(root_radius),
-                    - random.next_bounded_i32(self.hanging_root_radius.max(1)),
+                random.next_bounded_i32(vertical_span) - random.next_bounded_i32(vertical_span),
-                random.next_bounded_i32(self.hanging_roots_vertical_span.max(1))
+                random.next_bounded_i32(root_radius) - random.next_bounded_i32(root_radius),
-                    - random.next_bounded_i32(self.hanging_roots_vertical_span.max(1)),
-                random.next_bounded_i32(self.hanging_root_radius.max(1))
-                    - random.next_bounded_i32(self.hanging_root_radius.max(1)),
             );
 
-            if chunk.is_air(&mutable_pos.0) {
+            if chunk.is_air(&working_pos.0) {
-                let state = self.hanging_root_state_provider.get_with_context(
+                let above = working_pos.up();
-                    block_registry,
+                let above_state = GenerationCache::get_block_state(chunk, &above.0);
-                    chunk,
+                if above_state.to_state().is_side_solid(BlockDirection::Down) {
-                    random,
+                    chunk.set_block_state(
-                    mutable_pos,
+                        &working_pos.0,
-                );
+                        self.hanging_root_state_provider.get(
-                // In vanilla, it checks if it can survive and if the block above is sturdy.
+                            random,
-                // For now, let's just check if the block above is NOT air.
+                            working_pos,
-                let above = mutable_pos.add(0, 1, 0);
+                            chunk,
-                if !chunk.is_air(&above.0) {
+                            block_registry,
-                    chunk.set_block_state(&mutable_pos.0, state);
+                        ),
+                    );
                 }
             }
         }

crates/pumpkin-world/src/generation/feature/features/scattered_ore.rs

@@ -27,12 +27,11 @@ impl ScatteredOreFeature {
         pos: BlockPos,
     ) -> bool {
         let count = random.next_bounded_i32(self.size + 1);
-        let mut placed = false;
+        for i in 0..count {
-
+            let max_dist = i.min(7);
-        for _ in 0..count {
+            let offset_x = Self::get_random_offset(random, max_dist);
-            let offset_x = self.get_random_offset(random);
+            let offset_y = Self::get_random_offset(random, max_dist);
-            let offset_y = self.get_random_offset(random);
+            let offset_z = Self::get_random_offset(random, max_dist);
-            let offset_z = self.get_random_offset(random);
 
             let target_pos = pos.add(offset_x, offset_y, offset_z);
 
@@ -52,18 +51,17 @@ impl ScatteredOreFeature {
                     &target_pos,
                 ) {
                     chunk.set_block_state(&target_pos.0, target.state);
-                    placed = true;
                     break;
                 }
             }
         }
 
-        placed
+        true
     }
 
-    fn get_random_offset(&self, random: &mut RandomGenerator) -> i32 {
+    fn get_random_offset(random: &mut RandomGenerator, max_dist: i32) -> i32 {
         let f1 = random.next_f32();
         let f2 = random.next_f32();
-        ((f1 - f2) * self.size as f32).round() as i32
+        ((f1 - f2) * max_dist as f32).round() as i32
     }
 }

crates/pumpkin-world/src/generation/feature/features/sea_pickle.rs

@@ -1,10 +1,11 @@
-use crate::generation::proto_chunk::GenerationCache;
+use pumpkin_data::{Block, BlockDirection, BlockState, block_properties::SeaPickleLikeProperties};
-use pumpkin_data::{Block, BlockState, block_properties::SeaPickleLikeProperties};
 use pumpkin_util::{
     math::{int_provider::IntProvider, position::BlockPos},
     random::{RandomGenerator, RandomImpl},
 };
 
+use crate::generation::proto_chunk::GenerationCache;
+
 pub struct SeaPickleFeature {
     pub count: IntProvider,
 }
@@ -15,28 +16,37 @@ impl SeaPickleFeature {
         chunk: &mut T,
         _min_y: i8,
         _height: u16,
-        _feature: pumpkin_data::placed_feature::PlacedFeature, // This placed feature
+        _feature: pumpkin_data::placed_feature::PlacedFeature,
         random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        let mut times = 0;
+        let mut placed = 0;
         let count = self.count.get(random);
+
         for _ in 0..count {
             let x = random.next_bounded_i32(8) - random.next_bounded_i32(8);
             let z = random.next_bounded_i32(8) - random.next_bounded_i32(8);
             let y = chunk.ocean_floor_height_exclusive(pos.0.x + x, pos.0.z + z);
-            if GenerationCache::get_block_state(chunk, &pos.0).to_block_id() != Block::WATER {
+            let pickle_pos = BlockPos::new(pos.0.x + x, y, pos.0.z + z);
-                continue;
+
+            if GenerationCache::get_block_state(chunk, &pickle_pos.0).to_block_id() == Block::WATER
+                && Self::can_survive(chunk, pickle_pos)
+            {
+                let mut props = SeaPickleLikeProperties::default(&Block::SEA_PICKLE);
+                props.pickles = (random.next_bounded_i32(4) as u8) + 1;
+                let state_id = props.to_state_id(&Block::SEA_PICKLE);
+                chunk.set_block_state(&pickle_pos.0, BlockState::from_id(state_id));
+                placed += 1;
             }
-            let mut props = SeaPickleLikeProperties::default(&Block::SEA_PICKLE);
-            props.pickles = (random.next_bounded_i32(4) as u8) + 1;
-            let pos = BlockPos::new(pos.0.x + x, y, pos.0.z + z);
-            chunk.set_block_state(
-                &pos.0,
-                BlockState::from_id(props.to_state_id(&Block::SEA_PICKLE)),
-            );
-            times += 1;
         }
-        times > 0
+
+        placed > 0
+    }
+
+    fn can_survive<T: GenerationCache>(chunk: &T, pos: BlockPos) -> bool {
+        let below = pos.down();
+        GenerationCache::get_block_state(chunk, &below.0)
+            .to_state()
+            .is_side_solid(BlockDirection::Up)
     }
 }

crates/pumpkin-world/src/generation/feature/features/seagrass.rs

@@ -1,13 +1,15 @@
-use crate::generation::proto_chunk::GenerationCache;
 use pumpkin_data::{
-    Block, BlockState,
+    Block, BlockDirection, BlockState,
     block_properties::{DoubleBlockHalf, TallSeagrassLikeProperties},
+    tag,
 };
 use pumpkin_util::{
     math::position::BlockPos,
     random::{RandomGenerator, RandomImpl},
 };
 
+use crate::generation::proto_chunk::GenerationCache;
+
 pub struct SeagrassFeature {
     pub probability: f32,
 }
@@ -18,34 +20,51 @@ impl SeagrassFeature {
         chunk: &mut T,
         _min_y: i8,
         _height: u16,
-        _feature: pumpkin_data::placed_feature::PlacedFeature, // This placed feature
+        _feature: pumpkin_data::placed_feature::PlacedFeature,
         random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
+        let mut placed_any = false;
         let x = random.next_bounded_i32(8) - random.next_bounded_i32(8);
         let z = random.next_bounded_i32(8) - random.next_bounded_i32(8);
         let y = chunk.ocean_floor_height_exclusive(pos.0.x + x, pos.0.z + z);
-        let top_pos = BlockPos::new(pos.0.x + x, y, pos.0.z + z);
+        let grass_pos = BlockPos::new(pos.0.x + x, y, pos.0.z + z);
-        if GenerationCache::get_block_state(chunk, &top_pos.0).to_block_id() == Block::WATER {
+
-            let tall = random.next_f64() < self.probability as f64;
+        if GenerationCache::get_block_state(chunk, &grass_pos.0).to_block_id() == Block::WATER
-            if tall {
+            && Self::can_survive(chunk, grass_pos)
-                let tall_pos = top_pos.up();
+        {
-                if GenerationCache::get_block_state(chunk, &tall_pos.0).to_block_id()
+            let is_tall = random.next_f64() < self.probability as f64;
-                    == Block::WATER
+            if is_tall {
-                {
+                let above = grass_pos.up();
-                    let mut props = TallSeagrassLikeProperties::default(&Block::TALL_SEAGRASS);
+                if GenerationCache::get_block_state(chunk, &above.0).to_block_id() == Block::WATER {
-                    props.half = DoubleBlockHalf::Upper;
+                    let mut upper_props =
-                    chunk.set_block_state(&top_pos.0, Block::TALL_SEAGRASS.default_state);
+                        TallSeagrassLikeProperties::default(&Block::TALL_SEAGRASS);
-                    chunk.set_block_state(
+                    upper_props.half = DoubleBlockHalf::Upper;
-                        &tall_pos.0,
+                    let upper_state =
-                        BlockState::from_id(props.to_state_id(&Block::TALL_SEAGRASS)),
+                        BlockState::from_id(upper_props.to_state_id(&Block::TALL_SEAGRASS));
-                    );
+
+                    chunk.set_block_state(&grass_pos.0, Block::TALL_SEAGRASS.default_state);
+                    chunk.set_block_state(&above.0, upper_state);
+                    placed_any = true;
                 }
             } else {
-                chunk.set_block_state(&top_pos.0, Block::SEAGRASS.default_state);
+                chunk.set_block_state(&grass_pos.0, Block::SEAGRASS.default_state);
+                placed_any = true;
             }
-            return true;
         }
-        false
+
+        placed_any
+    }
+
+    fn can_survive<T: GenerationCache>(chunk: &T, pos: BlockPos) -> bool {
+        let below = pos.down();
+        let below_state = GenerationCache::get_block_state(chunk, &below.0);
+        let below_id = below_state.to_block_id();
+
+        if below_id.has_tag(tag::Block::MINECRAFT_CANNOT_SUPPORT_SEAGRASS) {
+            return false;
+        }
+
+        below_state.to_state().is_side_solid(BlockDirection::Up)
     }
 }

crates/pumpkin-world/src/generation/feature/features/simple_block.rs

@@ -27,9 +27,7 @@ impl SimpleBlockFeature {
             return false;
         }
 
-        // TODO: check things..
         chunk.set_block_state(&pos.0, state);
-        // TODO: schedule tick when needed
         true
     }
 }

crates/pumpkin-world/src/generation/feature/features/tree/decorator/alter_ground.rs

@@ -1 +1,92 @@
-pub struct AlterGroundTreeDecorator;
+use pumpkin_util::{
+    math::position::BlockPos,
+    random::{RandomGenerator, RandomImpl},
+};
+
+use super::TreeDecorator;
+use crate::{
+    generation::{block_state_provider::BlockStateProvider, proto_chunk::GenerationCache},
+    world::WorldPortalExt,
+};
+
+pub struct AlterGroundTreeDecorator {
+    pub provider: BlockStateProvider,
+}
+
+impl AlterGroundTreeDecorator {
+    pub fn generate<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        random: &mut RandomGenerator,
+        root_positions: &[BlockPos],
+        log_positions: &[BlockPos],
+    ) {
+        let list = TreeDecorator::get_leaf_litter_positions(root_positions, log_positions);
+        let Some(first) = list.first() else {
+            return;
+        };
+
+        let min_y = list.iter().map(|p| p.0.y).min().unwrap_or(first.0.y);
+
+        for pos in list.iter().filter(|p| p.0.y == min_y) {
+            self.place_circle(chunk, block_registry, random, pos.west().north());
+            self.place_circle(chunk, block_registry, random, pos.east().east().north());
+            self.place_circle(chunk, block_registry, random, pos.west().south().south());
+            self.place_circle(
+                chunk,
+                block_registry,
+                random,
+                pos.east().east().south().south(),
+            );
+
+            for _ in 0..5 {
+                let placement = random.next_bounded_i32(64);
+                let xx = placement % 8;
+                let zz = placement / 8;
+                if xx == 0 || xx == 7 || zz == 0 || zz == 7 {
+                    self.place_circle(chunk, block_registry, random, pos.add(-3 + xx, 0, -3 + zz));
+                }
+            }
+        }
+    }
+
+    fn place_circle<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        random: &mut RandomGenerator,
+        pos: BlockPos,
+    ) {
+        for xx in -2..=2i32 {
+            for zz in -2..=2i32 {
+                if xx.abs() != 2 || zz.abs() != 2 {
+                    self.place_block_at(chunk, block_registry, random, pos.add(xx, 0, zz));
+                }
+            }
+        }
+    }
+
+    fn place_block_at<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        random: &mut RandomGenerator,
+        pos: BlockPos,
+    ) {
+        for dy in (-3..=2).rev() {
+            let cursor = pos.up_height(dy);
+            if let Some(replace_with) =
+                self.provider
+                    .get_optional(block_registry, chunk, random, cursor)
+            {
+                chunk.set_block_state(&cursor.0, replace_with);
+                break;
+            }
+
+            if !chunk.is_air(&cursor.0) && dy < 0 {
+                break;
+            }
+        }
+    }
+}

crates/pumpkin-world/src/generation/feature/features/tree/decorator/attached_to_leaves.rs

@@ -1 +1,84 @@
-pub struct AttachedToLeavesTreeDecorator;
+use std::collections::HashSet;
+
+use pumpkin_data::BlockDirection;
+use pumpkin_util::{
+    math::position::BlockPos,
+    random::{RandomGenerator, RandomImpl},
+};
+
+use crate::{
+    generation::{block_state_provider::BlockStateProvider, proto_chunk::GenerationCache},
+    world::WorldPortalExt,
+};
+
+pub struct AttachedToLeavesTreeDecorator {
+    pub probability: f32,
+    pub exclusion_radius_xz: i32,
+    pub exclusion_radius_y: i32,
+    pub block_provider: BlockStateProvider,
+    pub required_empty_blocks: i32,
+    pub directions: Vec<BlockDirection>,
+}
+
+impl AttachedToLeavesTreeDecorator {
+    pub fn generate<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        block_registry: &dyn WorldPortalExt,
+        random: &mut RandomGenerator,
+        foliage_positions: &[BlockPos],
+    ) {
+        if self.directions.is_empty() || foliage_positions.is_empty() {
+            return;
+        }
+
+        let mut blacklist: HashSet<BlockPos> = HashSet::new();
+
+        let mut shuffled = foliage_positions.to_vec();
+        for i in (1..shuffled.len()).rev() {
+            let j = random.next_bounded_i32((i + 1) as i32) as usize;
+            shuffled.swap(i, j);
+        }
+
+        for leaf_pos in shuffled {
+            let dir_idx = random.next_bounded_i32(self.directions.len() as i32) as usize;
+            let direction = self.directions[dir_idx];
+            let placement_pos = leaf_pos.offset(direction.to_offset());
+
+            if !blacklist.contains(&placement_pos)
+                && random.next_f32() < self.probability
+                && self.has_required_empty_blocks(chunk, leaf_pos, direction)
+            {
+                for dx in -self.exclusion_radius_xz..=self.exclusion_radius_xz {
+                    for dy in -self.exclusion_radius_y..=self.exclusion_radius_y {
+                        for dz in -self.exclusion_radius_xz..=self.exclusion_radius_xz {
+                            blacklist.insert(placement_pos.add(dx, dy, dz));
+                        }
+                    }
+                }
+
+                chunk.set_block_state(
+                    &placement_pos.0,
+                    self.block_provider
+                        .get(random, placement_pos, chunk, block_registry),
+                );
+            }
+        }
+    }
+
+    fn has_required_empty_blocks<T: GenerationCache>(
+        &self,
+        chunk: &T,
+        leaf_pos: BlockPos,
+        direction: BlockDirection,
+    ) -> bool {
+        let offset = direction.to_offset();
+        for i in 1..=self.required_empty_blocks {
+            let check_pos = leaf_pos.offset(offset * i);
+            if !chunk.is_air(&check_pos.0) {
+                return false;
+            }
+        }
+        true
+    }
+}

crates/pumpkin-world/src/generation/feature/features/tree/decorator/attached_to_logs.rs

@@ -21,21 +21,28 @@ impl AttachedToLogsTreeDecorator {
         random: &mut RandomGenerator,
         log_positions: &[BlockPos],
     ) {
-        // TODO: shuffle
+        if self.directions.is_empty() || log_positions.is_empty() {
-        for pos in log_positions {
+            return;
-            // TODO: random
+        }
-            let pos = pos.offset(self.directions[0].to_offset());
+
-            if random.next_f32() > self.probability
+        let mut shuffled = log_positions.to_vec();
-                || !GenerationCache::get_block_state(chunk, &pos.0)
+        for i in (1..shuffled.len()).rev() {
-                    .to_state()
+            let j = random.next_bounded_i32((i + 1) as i32) as usize;
-                    .is_air()
+            shuffled.swap(i, j);
-            {
+        }
-                continue;
+
+        for log_pos in shuffled {
+            let dir_idx = random.next_bounded_i32(self.directions.len() as i32) as usize;
+            let direction = self.directions[dir_idx];
+            let placement_pos = log_pos.offset(direction.to_offset());
+
+            if random.next_f32() <= self.probability && chunk.is_air(&placement_pos.0) {
+                chunk.set_block_state(
+                    &placement_pos.0,
+                    self.block_provider
+                        .get(random, placement_pos, chunk, block_registry),
+                );
             }
-            chunk.set_block_state(
-                &pos.0,
-                self.block_provider.get(random, pos, chunk, block_registry),
-            );
         }
     }
 }

crates/pumpkin-world/src/generation/feature/features/tree/decorator/beehive.rs

@@ -1,3 +1,70 @@
+use pumpkin_data::{
+    Block, BlockDirection, BlockState,
+    block_properties::{BeehiveProperties, HorizontalFacing},
+};
+use pumpkin_util::{
+    math::position::BlockPos,
+    random::{RandomGenerator, RandomImpl},
+};
+
+use crate::generation::proto_chunk::GenerationCache;
+
 pub struct BeehiveTreeDecorator {
     pub probability: f32,
 }
+
+impl BeehiveTreeDecorator {
+    pub fn generate<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        random: &mut RandomGenerator,
+        log_positions: &[BlockPos],
+        foliage_positions: &[BlockPos],
+    ) {
+        if log_positions.is_empty() || random.next_f32() >= self.probability {
+            return;
+        }
+
+        let worldgen_facing = BlockDirection::South;
+        let spawn_directions = [
+            BlockDirection::East,
+            BlockDirection::West,
+            BlockDirection::South,
+        ];
+
+        let hive_y = foliage_positions.first().map_or_else(
+            || {
+                let last_log_y = log_positions.last().map_or(0, |p| p.0.y);
+                (log_positions[0].0.y + 1 + random.next_bounded_i32(3)).min(last_log_y)
+            },
+            |first_leaf| (first_leaf.0.y - 1).max(log_positions[0].0.y + 1),
+        );
+
+        let mut hive_placements: Vec<BlockPos> = Vec::new();
+        for log_pos in log_positions.iter().filter(|p| p.0.y == hive_y) {
+            for dir in spawn_directions {
+                hive_placements.push(log_pos.offset(dir.to_offset()));
+            }
+        }
+
+        if hive_placements.is_empty() {
+            return;
+        }
+
+        for i in (1..hive_placements.len()).rev() {
+            let j = random.next_bounded_i32((i + 1) as i32) as usize;
+            hive_placements.swap(i, j);
+        }
+
+        for pos in hive_placements {
+            let in_front = pos.offset(worldgen_facing.to_offset());
+            if chunk.is_air(&pos.0) && chunk.is_air(&in_front.0) {
+                let mut props = BeehiveProperties::default(&Block::BEE_NEST);
+                props.facing = HorizontalFacing::South;
+                let state_id = props.to_state_id(&Block::BEE_NEST);
+                chunk.set_block_state(&pos.0, BlockState::from_id(state_id));
+                break;
+            }
+        }
+    }
+}

crates/pumpkin-world/src/generation/feature/features/tree/decorator/cocoa.rs

@@ -1 +1,43 @@
-pub struct CocoaTreeDecorator;
+use pumpkin_data::{Block, BlockDirection, BlockState, block_properties::CocoaLikeProperties};
+use pumpkin_util::{
+    math::position::BlockPos,
+    random::{RandomGenerator, RandomImpl},
+};
+
+use crate::generation::proto_chunk::GenerationCache;
+
+pub struct CocoaTreeDecorator {
+    pub probability: f32,
+}
+
+impl CocoaTreeDecorator {
+    pub fn generate<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        random: &mut RandomGenerator,
+        log_positions: &[BlockPos],
+    ) {
+        if log_positions.is_empty() || random.next_f32() >= self.probability {
+            return;
+        }
+
+        let tree_y = log_positions[0].0.y;
+        for pos in log_positions.iter().filter(|p| p.0.y - tree_y <= 2) {
+            for facing in BlockDirection::horizontal_worldgen() {
+                if random.next_f32() <= 0.25 {
+                    let dir = BlockDirection::from_cardinal_direction(facing);
+                    let opposite = dir.opposite();
+                    let cocoa_pos = pos.offset(opposite.to_offset());
+                    if chunk.is_air(&cocoa_pos.0) {
+                        let props = CocoaLikeProperties {
+                            age: random.next_bounded_i32(3) as u8,
+                            facing,
+                        };
+                        let state_id = props.to_state_id(&Block::COCOA);
+                        chunk.set_block_state(&cocoa_pos.0, BlockState::from_id(state_id));
+                    }
+                }
+            }
+        }
+    }
+}

crates/pumpkin-world/src/generation/feature/features/tree/decorator/creaking_heart.rs

@@ -1 +1,57 @@
-pub struct CreakingHeartTreeDecorator;
+use pumpkin_data::{
+    Block, BlockDirection, BlockState,
+    block_properties::{Axis, CreakingHeartLikeProperties, CreakingHeartState},
+    tag,
+};
+use pumpkin_util::{
+    math::position::BlockPos,
+    random::{RandomGenerator, RandomImpl},
+};
+
+use crate::generation::proto_chunk::GenerationCache;
+
+pub struct CreakingHeartTreeDecorator {
+    pub probability: f32,
+}
+
+impl CreakingHeartTreeDecorator {
+    pub fn generate<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        random: &mut RandomGenerator,
+        log_positions: &[BlockPos],
+    ) {
+        if log_positions.is_empty() || random.next_f32() >= self.probability {
+            return;
+        }
+
+        let mut shuffled = log_positions.to_vec();
+        for i in (1..shuffled.len()).rev() {
+            let j = random.next_bounded_i32((i + 1) as i32) as usize;
+            shuffled.swap(i, j);
+        }
+
+        for pos in shuffled {
+            let mut all_logs = true;
+            for dir in BlockDirection::all() {
+                let neighbor = pos.offset(dir.to_offset());
+                let block_id = GenerationCache::get_block_state(chunk, &neighbor.0).to_block_id();
+                if !block_id.has_tag(tag::Block::MINECRAFT_LOGS) {
+                    all_logs = false;
+                    break;
+                }
+            }
+
+            if all_logs {
+                let props = CreakingHeartLikeProperties {
+                    r#axis: Axis::Y,
+                    r#creaking_heart_state: CreakingHeartState::Dormant,
+                    r#natural: true,
+                };
+                let state_id = props.to_state_id(&Block::CREAKING_HEART);
+                chunk.set_block_state(&pos.0, BlockState::from_id(state_id));
+                break;
+            }
+        }
+    }
+}

crates/pumpkin-world/src/generation/feature/features/tree/decorator/mod.rs

@@ -53,15 +53,27 @@ impl TreeDecorator {
                 TrunkVineTreeDecorator::generate(chunk, random, log_positions);
             }
             Self::LeaveVine(decorator) => decorator.generate(chunk, random, foliage_positions),
-            Self::PaleMoss(_decorator) => {}
+            Self::PaleMoss(decorator) => {
-            Self::CreakingHeart(_decorator) => {}
+                decorator.generate(chunk, random, log_positions, foliage_positions);
-            Self::Cocoa(_decorator) => {}
+            }
-            Self::Beehive(_decorator) => {}
+            Self::CreakingHeart(decorator) => {
-            Self::AlterGround(_decorator) => {}
+                decorator.generate(chunk, random, log_positions);
+            }
+            Self::Cocoa(decorator) => {
+                decorator.generate(chunk, random, log_positions);
+            }
+            Self::Beehive(decorator) => {
+                decorator.generate(chunk, random, log_positions, foliage_positions);
+            }
+            Self::AlterGround(decorator) => {
+                decorator.generate(chunk, block_registry, random, root_positions, log_positions);
+            }
             Self::PlaceOnGround(decorator) => {
                 decorator.generate(chunk, block_registry, random, root_positions, log_positions);
             }
-            Self::AttachedToLeaves(_decorator) => {}
+            Self::AttachedToLeaves(decorator) => {
+                decorator.generate(chunk, block_registry, random, foliage_positions);
+            }
             Self::AttachedToLogs(decorator) => {
                 decorator.generate(chunk, block_registry, random, log_positions);
             }

crates/pumpkin-world/src/generation/feature/features/tree/decorator/pale_moss.rs

@@ -1 +1,62 @@
-pub struct PaleMossTreeDecorator;
+use pumpkin_data::{Block, BlockState, block_properties::PaleHangingMossLikeProperties};
+use pumpkin_util::{
+    math::position::BlockPos,
+    random::{RandomGenerator, RandomImpl},
+};
+
+use crate::generation::proto_chunk::GenerationCache;
+
+pub struct PaleMossTreeDecorator {
+    pub leaves_probability: f32,
+    pub trunk_probability: f32,
+    pub ground_probability: f32,
+}
+
+impl PaleMossTreeDecorator {
+    pub fn generate<T: GenerationCache>(
+        &self,
+        chunk: &mut T,
+        random: &mut RandomGenerator,
+        log_positions: &[BlockPos],
+        foliage_positions: &[BlockPos],
+    ) {
+        if log_positions.is_empty() {
+            return;
+        }
+
+        for &pos in log_positions {
+            if random.next_f32() < self.trunk_probability {
+                let down = pos.down();
+                if chunk.is_air(&down.0) {
+                    Self::add_moss_hanger(chunk, random, down);
+                }
+            }
+        }
+
+        for &pos in foliage_positions {
+            if random.next_f32() < self.leaves_probability {
+                let down = pos.down();
+                if chunk.is_air(&down.0) {
+                    Self::add_moss_hanger(chunk, random, down);
+                }
+            }
+        }
+    }
+
+    fn add_moss_hanger<T: GenerationCache>(
+        chunk: &mut T,
+        random: &mut RandomGenerator,
+        mut pos: BlockPos,
+    ) {
+        while chunk.is_air(&pos.down().0) && random.next_f32() >= 0.5 {
+            let props = PaleHangingMossLikeProperties { tip: false };
+            let state_id = props.to_state_id(&Block::PALE_HANGING_MOSS);
+            chunk.set_block_state(&pos.0, BlockState::from_id(state_id));
+            pos = pos.down();
+        }
+
+        let props = PaleHangingMossLikeProperties { tip: true };
+        let state_id = props.to_state_id(&Block::PALE_HANGING_MOSS);
+        chunk.set_block_state(&pos.0, BlockState::from_id(state_id));
+    }
+}

crates/pumpkin-world/src/generation/feature/features/tree/decorator/place_on_ground.rs

@@ -66,18 +66,16 @@ impl PlaceOnGroundTreeDecorator {
         random: &mut RandomGenerator,
     ) {
         let state = GenerationCache::get_block_state(chunk, &pos.0);
-        let up_pos = pos.up();
+        let ground_pos = pos.down();
-        let up_state = GenerationCache::get_block_state(chunk, &up_pos.0);
+        let ground_state = GenerationCache::get_block_state(chunk, &ground_pos.0);
-        // TODO
+        if (state.to_state().is_air() || state.to_block_id() == Block::VINE)
-        if (up_state.to_state().is_air() || up_state.to_block_id() == Block::VINE)
+            && ground_state.to_state().is_full_cube()
-            && state.to_state().is_full_cube()
+            && !ground_state.to_block_id().has_tag(MINECRAFT_LEAVES)
-            && !state.to_block_id().has_tag(MINECRAFT_LEAVES)
-        // TODO: using heightmap seems not to work
         {
             chunk.set_block_state(
-                &up_pos.0,
+                &pos.0,
                 self.block_state_provider
-                    .get(random, up_pos, chunk, block_registry),
+                    .get(random, pos, chunk, block_registry),
             );
         }
     }

crates/pumpkin-world/src/generation/feature/features/twisting_vines.rs

@@ -1,4 +1,4 @@
-use pumpkin_data::Block;
+use pumpkin_data::{Block, BlockState, block_properties::KelpLikeProperties};
 use pumpkin_util::{
     math::position::BlockPos,
     random::{RandomGenerator, RandomImpl},
@@ -22,34 +22,31 @@ impl TwistingVinesFeature {
         random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        if Self::is_invalid_location(chunk, &pos) {
+        if Self::is_invalid_placement_location(chunk, pos) {
             return false;
         }
 
         let mut placed = false;
 
         for _ in 0..self.spread_width * self.spread_width {
-            let offset_x = random.next_bounded_i32(self.spread_width)
+            let offset_x = random.next_inbetween_i32(-self.spread_width, self.spread_width);
-                - random.next_bounded_i32(self.spread_width);
+            let offset_y = random.next_inbetween_i32(-self.spread_height, self.spread_height);
-            let offset_y = random.next_bounded_i32(self.spread_height)
+            let offset_z = random.next_inbetween_i32(-self.spread_width, self.spread_width);
-                - random.next_bounded_i32(self.spread_height);
-            let offset_z = random.next_bounded_i32(self.spread_width)
-                - random.next_bounded_i32(self.spread_width);
 
-            let mut mutable_pos = pos.add(offset_x, offset_y, offset_z);
+            let mut place_pos = pos.add(offset_x, offset_y, offset_z);
 
-            if self.find_target_y(chunk, &mut mutable_pos)
+            if Self::find_first_air_block_above_ground(chunk, &mut place_pos)
-                && !Self::is_invalid_location(chunk, &mutable_pos)
+                && !Self::is_invalid_placement_location(chunk, place_pos)
             {
-                let mut height = random.next_bounded_i32(self.max_height) + 1;
+                let mut vine_height = random.next_inbetween_i32(1, self.max_height);
                 if random.next_bounded_i32(6) == 0 {
-                    height *= 2;
+                    vine_height *= 2;
                 }
-                if random.next_bounded_i32(10) == 0 {
+                if random.next_bounded_i32(5) == 0 {
-                    height = 1;
+                    vine_height = 1;
                 }
 
-                Self::generate_column(chunk, random, &mutable_pos, height);
+                Self::place_twisting_vines_column(chunk, random, place_pos, vine_height, 17, 25);
                 placed = true;
             }
         }
@@ -57,75 +54,59 @@ impl TwistingVinesFeature {
         placed
     }
 
-    fn generate_column<T: GenerationCache>(
+    fn find_first_air_block_above_ground<T: GenerationCache>(
+        chunk: &T,
+        place_pos: &mut BlockPos,
+    ) -> bool {
+        loop {
+            *place_pos = place_pos.down();
+            if place_pos.0.y <= chunk.bottom_y() as i32 {
+                return false;
+            }
+            if !chunk.is_air(&place_pos.0) {
+                break;
+            }
+        }
+
+        *place_pos = place_pos.up();
+        true
+    }
+
+    pub fn place_twisting_vines_column<T: GenerationCache>(
         chunk: &mut T,
         random: &mut RandomGenerator,
-        pos: &BlockPos,
+        mut place_pos: BlockPos,
-        height: i32,
+        total_height: i32,
+        min_age: i32,
+        max_age: i32,
     ) {
-        let mut current_pos = *pos;
+        for height in 1..=total_height {
-        for i in 0..height {
+            if chunk.is_air(&place_pos.0) {
-            if !GenerationCache::get_block_state(chunk, &current_pos.0)
+                if height == total_height || !chunk.is_air(&place_pos.up().0) {
-                .to_state()
+                    let age = random.next_inbetween_i32(min_age, max_age);
-                .is_air()
+                    let mut props = KelpLikeProperties::default(&Block::TWISTING_VINES);
-            {
+                    props.age = age as u8;
-                break;
+                    let state_id = props.to_state_id(&Block::TWISTING_VINES);
+                    chunk.set_block_state(&place_pos.0, BlockState::from_id(state_id));
+                    break;
+                }
+
+                chunk.set_block_state(&place_pos.0, Block::TWISTING_VINES_PLANT.default_state);
             }
 
-            if i == height - 1
+            place_pos = place_pos.up();
-                || !GenerationCache::get_block_state(chunk, &current_pos.up().0)
-                    .to_state()
-                    .is_air()
-            {
-                // Top part
-                let _age = 17 + random.next_bounded_i32(25 - 17 + 1);
-                // We should set the age property here, but Pumpkin's BlockState might not support it easily yet or we just use default
-                // For now, let's just use the block.
-                // TODO: Set age property
-                chunk.set_block_state(&current_pos.0, Block::TWISTING_VINES.default_state);
-                break;
-            }
-            chunk.set_block_state(&current_pos.0, Block::TWISTING_VINES_PLANT.default_state);
-            current_pos = current_pos.up();
         }
     }
 
-    fn is_invalid_location<T: GenerationCache>(chunk: &T, pos: &BlockPos) -> bool {
+    fn is_invalid_placement_location<T: GenerationCache>(chunk: &T, pos: BlockPos) -> bool {
-        if !GenerationCache::get_block_state(chunk, &pos.0)
+        if !chunk.is_air(&pos.0) {
-            .to_state()
-            .is_air()
-        {
             return true;
         }
 
-        let block_below = GenerationCache::get_block_state(chunk, &pos.down().0).to_state();
+        let below = pos.down();
-        block_below != Block::WARPED_NYLIUM.default_state
+        let below_id = GenerationCache::get_block_state(chunk, &below.0).to_block_id();
-            && block_below != Block::WARPED_WART_BLOCK.default_state
+        below_id != Block::NETHERRACK.id
-            && block_below != Block::TWISTING_VINES.default_state
+            && below_id != Block::WARPED_NYLIUM.id
-            && block_below != Block::TWISTING_VINES_PLANT.default_state
+            && below_id != Block::WARPED_WART_BLOCK.id
-    }
-
-    fn find_target_y<T: GenerationCache>(&self, chunk: &T, pos: &mut BlockPos) -> bool {
-        // Try to find a valid floor by looking down
-        let mut current = *pos;
-        for _ in 0..self.spread_height {
-            if GenerationCache::get_block_state(chunk, &current.0)
-                .to_state()
-                .is_air()
-            {
-                let below = current.down();
-                let block_below = GenerationCache::get_block_state(chunk, &below.0).to_state();
-                if block_below == Block::WARPED_NYLIUM.default_state
-                    || block_below == Block::WARPED_WART_BLOCK.default_state
-                    || block_below == Block::TWISTING_VINES.default_state
-                    || block_below == Block::TWISTING_VINES_PLANT.default_state
-                {
-                    *pos = current;
-                    return true;
-                }
-            }
-            current = current.down();
-        }
-        false
     }
 }

crates/pumpkin-world/src/generation/feature/features/vines.rs

@@ -1,4 +1,4 @@
-use pumpkin_data::{Block, BlockDirection, BlockState};
+use pumpkin_data::{Block, BlockDirection, BlockState, block_properties::VineLikeProperties};
 use pumpkin_util::{math::position::BlockPos, random::RandomGenerator};
 
 use crate::generation::proto_chunk::GenerationCache;
@@ -19,17 +19,19 @@ impl VinesFeature {
         if !chunk.is_air(&pos.0) {
             return false;
         }
+
         for dir in BlockDirection::all() {
-            // TODO
+            if dir == BlockDirection::Down {
-            if dir == BlockDirection::Down
-                || !GenerationCache::get_block_state(chunk, &pos.offset(dir.to_offset()).0)
-                    .to_state()
-                    .is_full_cube()
-            {
                 continue;
             }
-            let mut vine =
+
-                pumpkin_data::block_properties::VineLikeProperties::default(&Block::VINE);
+            let neighbor = pos.offset(dir.to_offset());
+            let neighbor_state = GenerationCache::get_block_state(chunk, &neighbor.0);
+            if !neighbor_state.to_state().is_side_solid(dir.opposite()) {
+                continue;
+            }
+
+            let mut vine = VineLikeProperties::default(&Block::VINE);
             vine.north = dir == BlockDirection::North;
             vine.east = dir == BlockDirection::East;
             vine.south = dir == BlockDirection::South;
@@ -38,6 +40,7 @@ impl VinesFeature {
             chunk.set_block_state(&pos.0, BlockState::from_id(vine.to_state_id(&Block::VINE)));
             return true;
         }
+
         false
     }
 }

crates/pumpkin-world/src/generation/feature/features/void_start_platform.rs

@@ -1,12 +1,14 @@
 use pumpkin_data::Block;
-use pumpkin_util::{math::position::BlockPos, random::RandomGenerator};
+use pumpkin_util::{
+    math::{position::BlockPos, vector3::Vector3},
+    random::RandomGenerator,
+};
 
 use crate::generation::proto_chunk::GenerationCache;
 
 pub struct VoidStartPlatformFeature;
 
 impl VoidStartPlatformFeature {
-    #[allow(clippy::unused_self)]
     pub fn generate<T: GenerationCache>(
         &self,
         chunk: &mut T,
@@ -16,12 +18,33 @@ impl VoidStartPlatformFeature {
         _random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        for dx in -1..=1 {
+        let chunk_x = pos.0.x >> 4;
-            for dz in -1..=1 {
+        let chunk_z = pos.0.z >> 4;
-                let target = BlockPos::new(pos.0.x + dx, pos.0.y, pos.0.z + dz);
+
-                chunk.set_block_state(&target.0, Block::OBSIDIAN.default_state);
+        if chunk_x.abs().max(chunk_z.abs()) > 1 {
+            return true;
+        }
+
+        let platform_y = pos.0.y + 3;
+        let min_x = chunk_x * 16;
+        let max_x = min_x + 15;
+        let min_z = chunk_z * 16;
+        let max_z = min_z + 15;
+
+        for z in min_z..=max_z {
+            for x in min_x..=max_x {
+                if (8 - x).abs().max((8 - z).abs()) <= 16 {
+                    let target = Vector3::new(x, platform_y, z);
+                    let state = if x == 8 && z == 8 {
+                        Block::COBBLESTONE.default_state
+                    } else {
+                        Block::STONE.default_state
+                    };
+                    chunk.set_block_state(&target, state);
+                }
             }
         }
+
         true
     }
 }

crates/pumpkin-world/src/generation/feature/features/weeping_vines.rs

@@ -1,5 +1,8 @@
-use pumpkin_data::Block;
+use pumpkin_data::{Block, BlockDirection, BlockState, block_properties::KelpLikeProperties};
-use pumpkin_util::{math::position::BlockPos, random::RandomGenerator, random::RandomImpl};
+use pumpkin_util::{
+    math::position::BlockPos,
+    random::{RandomGenerator, RandomImpl},
+};
 
 use crate::generation::proto_chunk::GenerationCache;
 
@@ -16,21 +19,109 @@ impl WeepingVinesFeature {
         random: &mut RandomGenerator,
         pos: BlockPos,
     ) -> bool {
-        let ceiling_pos = pos.up();
+        if !chunk.is_air(&pos.0) {
-        let ceiling_block = GenerationCache::get_block_state(chunk, &ceiling_pos.0).to_block_id();
-        if ceiling_block == Block::AIR.id {
             return false;
         }
 
-        let length = random.next_bounded_i32(4) + 3;
+        let above = pos.up();
-        for i in 0..length {
+        let above_id = GenerationCache::get_block_state(chunk, &above.0).to_block_id();
-            let target = BlockPos::new(pos.0.x, pos.0.y - i, pos.0.z);
+        if above_id != Block::NETHERRACK.id && above_id != Block::NETHER_WART_BLOCK.id {
-            if chunk.is_air(&target.0) {
+            return false;
-                chunk.set_block_state(&target.0, Block::WEEPING_VINES.default_state);
-            } else {
-                break;
-            }
         }
+
+        Self::place_roof_nether_wart(chunk, random, pos);
+        Self::place_roof_weeping_vines(chunk, random, pos);
         true
     }
+
+    fn place_roof_nether_wart<T: GenerationCache>(
+        chunk: &mut T,
+        random: &mut RandomGenerator,
+        origin: BlockPos,
+    ) {
+        chunk.set_block_state(&origin.0, Block::NETHER_WART_BLOCK.default_state);
+
+        for _ in 0..200 {
+            let place_pos = origin.add(
+                random.next_bounded_i32(6) - random.next_bounded_i32(6),
+                random.next_bounded_i32(2) - random.next_bounded_i32(5),
+                random.next_bounded_i32(6) - random.next_bounded_i32(6),
+            );
+
+            if chunk.is_air(&place_pos.0) {
+                let mut neighbours = 0;
+                for dir in BlockDirection::all() {
+                    let neighbour_pos = place_pos.offset(dir.to_offset());
+                    let id =
+                        GenerationCache::get_block_state(chunk, &neighbour_pos.0).to_block_id();
+                    if id == Block::NETHERRACK.id || id == Block::NETHER_WART_BLOCK.id {
+                        neighbours += 1;
+                    }
+                    if neighbours > 1 {
+                        break;
+                    }
+                }
+
+                if neighbours == 1 {
+                    chunk.set_block_state(&place_pos.0, Block::NETHER_WART_BLOCK.default_state);
+                }
+            }
+        }
+    }
+
+    fn place_roof_weeping_vines<T: GenerationCache>(
+        chunk: &mut T,
+        random: &mut RandomGenerator,
+        origin: BlockPos,
+    ) {
+        for _ in 0..100 {
+            let place_pos = origin.add(
+                random.next_bounded_i32(8) - random.next_bounded_i32(8),
+                random.next_bounded_i32(2) - random.next_bounded_i32(7),
+                random.next_bounded_i32(8) - random.next_bounded_i32(8),
+            );
+
+            if chunk.is_air(&place_pos.0) {
+                let above = place_pos.up();
+                let above_id = GenerationCache::get_block_state(chunk, &above.0).to_block_id();
+                if above_id == Block::NETHERRACK.id || above_id == Block::NETHER_WART_BLOCK.id {
+                    let mut vine_height = random.next_bounded_i32(8) + 1;
+                    if random.next_bounded_i32(6) == 0 {
+                        vine_height *= 2;
+                    }
+                    if random.next_bounded_i32(5) == 0 {
+                        vine_height = 1;
+                    }
+
+                    Self::place_weeping_vines_column(chunk, random, place_pos, vine_height, 17, 25);
+                }
+            }
+        }
+    }
+
+    pub fn place_weeping_vines_column<T: GenerationCache>(
+        chunk: &mut T,
+        random: &mut RandomGenerator,
+        mut place_pos: BlockPos,
+        total_height: i32,
+        min_age: i32,
+        max_age: i32,
+    ) {
+        for height in 0..=total_height {
+            if chunk.is_air(&place_pos.0) {
+                if height == total_height || !chunk.is_air(&place_pos.down().0) {
+                    let age = random.next_inbetween_i32(min_age, max_age);
+                    let mut props = KelpLikeProperties::default(&Block::WEEPING_VINES);
+                    props.age = age as u8;
+                    let state_id = props.to_state_id(&Block::WEEPING_VINES);
+                    chunk.set_block_state(&place_pos.0, BlockState::from_id(state_id));
+                    break;
+                }
+
+                chunk.set_block_state(&place_pos.0, Block::WEEPING_VINES_PLANT.default_state);
+            }
+
+            place_pos = place_pos.down();
+        }
+    }
 }

crates/pumpkin-world/src/generation/proto_chunk.rs

@@ -96,6 +96,9 @@ pub trait GenerationCache: HeightLimitView + BlockAccessor {
         chunk_x: i32,
         chunk_z: i32,
     ) -> Option<&crate::generation::blender::blending_data::BlendingData>;
+    fn get_sea_level(&self) -> i32 {
+        63
+    }
 }
 
 const AIR_BLOCK: Block = Block::AIR;
@@ -184,6 +187,11 @@ impl TerrainCache {
 }
 
 impl ProtoChunk {
+    #[must_use]
+    pub const fn get_sea_level(&self) -> i32 {
+        63
+    }
+
     #[cfg(test)]
     pub(crate) fn has_structure(&self, key: StructureKeys) -> bool {
         self.structure_starts.contains_key(&key)
@@ -1717,4 +1725,7 @@ impl GenerationCache for ProtoChunk {
     ) -> Option<&crate::generation::blender::blending_data::BlendingData> {
         None
     }
+    fn get_sea_level(&self) -> i32 {
+        Self::get_sea_level(self)
+    }
 }

crates/pumpkin-world/src/generation/structure/placement.rs

@@ -7,7 +7,6 @@ use pumpkin_util::{
     math::floor_div,
     random::{
         RandomGenerator, RandomImpl, get_carver_seed, get_region_seed, legacy_rand::LegacyRand,
-        xoroshiro128::Xoroshiro,
     },
 };
 use std::f64::consts::PI;
@@ -250,8 +249,8 @@ fn should_generate_frequency(
 ) -> bool {
     match method {
         FrequencyReductionMethod::Default => {
-            let region_seed = get_region_seed(seed as u64, chunk_x, chunk_z, salt);
+            let region_seed = get_region_seed(seed as u64, salt as i32, chunk_x, chunk_z as u32);
-            let mut random = RandomGenerator::Xoroshiro(Xoroshiro::from_seed(region_seed));
+            let mut random = LegacyRand::from_seed(region_seed);
             random.next_f32() < frequency
         }
         FrequencyReductionMethod::LegacyType1 => {
@@ -263,12 +262,12 @@ fn should_generate_frequency(
         }
         FrequencyReductionMethod::LegacyType2 => {
             let region_seed = get_region_seed(seed as u64, chunk_x, chunk_z, 10387320);
-            let mut random = RandomGenerator::Xoroshiro(Xoroshiro::from_seed(region_seed));
+            let mut random = LegacyRand::from_seed(region_seed);
             random.next_f32() < frequency
         }
         FrequencyReductionMethod::LegacyType3 => {
             let carver_seed = get_carver_seed(seed as u64, chunk_x, chunk_z);
-            let mut random = RandomGenerator::Xoroshiro(Xoroshiro::from_seed(carver_seed));
+            let mut random = LegacyRand::from_seed(carver_seed);
             random.next_f64() < f64::from(frequency)
         }
     }

crates/pumpkin-world/src/generation/structure/structures/buried_treasure.rs

@@ -1,23 +1,20 @@
 use std::sync::Arc;
 
-use pumpkin_data::{Block, BlockDirection, BlockId};
+use pumpkin_data::Block;
 use pumpkin_nbt::compound::NbtCompound;
 use pumpkin_util::{
-    HeightMap,
+    BlockDirection, HeightMap,
-    math::{block_box::BlockBox, position::BlockPos},
+    math::{block_box::BlockBox, position::BlockPos, vector3::Vector3},
     random::{RandomGenerator, RandomImpl, hash_block_pos, legacy_rand::LegacyRand},
 };
 
 use crate::{
     ProtoChunk,
-    generation::{
+    generation::structure::{
-        positions::chunk_pos::{get_center_x, get_center_z},
+        piece::StructurePieceType,
-        structure::{
+        structures::{
-            piece::StructurePieceType,
+            StructureGenerator, StructureGeneratorContext, StructurePiece, StructurePieceBase,
-            structures::{
+            StructurePiecesCollector, StructurePosition, WorldPortalExt,
-                StructureGenerator, StructureGeneratorContext, StructurePiece, StructurePieceBase,
-                StructurePiecesCollector, StructurePosition, WorldPortalExt,
-            },
         },
     },
 };
@@ -29,13 +26,12 @@ impl StructureGenerator for BuriedTreasureGenerator {
         &self,
         context: StructureGeneratorContext<'_>,
     ) -> Option<StructurePosition> {
-        let x = get_center_x(context.chunk_x);
+        let x = (context.chunk_x << 4) + 9;
-        let z = get_center_z(context.chunk_z);
+        let z = (context.chunk_z << 4) + 9;
 
-        let bounding_box = BlockBox::new(x, -64, z, x, 320, z);
+        let bounding_box = BlockBox::new(x, 90, z, x, 90, z);
 
         let mut collector = StructurePiecesCollector::default();
-
         collector.add_piece(Box::new(BuriedTreasurePiece {
             piece: StructurePiece::new(StructurePieceType::BuriedTreasure, bounding_box, 0),
         }));
@@ -55,88 +51,6 @@ impl StructurePieceBase for BuriedTreasurePiece {
     fn as_any(&self) -> &dyn std::any::Any {
         self
     }
-    fn place(
-        &mut self,
-        chunk: &mut ProtoChunk,
-        _block_registry: &dyn WorldPortalExt,
-        _random: &mut RandomGenerator,
-        _seed: i64,
-        _chunk_box: &BlockBox,
-    ) {
-        let boundingbox = self.bounding_box();
-        let y = chunk.get_top_y(
-            &HeightMap::OceanFloorWg,
-            boundingbox.min.x,
-            boundingbox.min.z,
-        );
-
-        let mut pos = BlockPos::new(boundingbox.min.x, y, boundingbox.min.z);
-        let bottom_y = chunk.bottom_y() as i32;
-
-        for _ in (bottom_y..=y).rev() {
-            let state = chunk.get_block_state(&pos.0);
-            let down_pos = pos.down();
-            let down_raw_state = chunk.get_block_state(&down_pos.0);
-            let down_block = down_raw_state.to_block_id();
-
-            if down_block == Block::SANDSTONE
-                || down_block == Block::STONE
-                || down_block == Block::ANDESITE
-                || down_block == Block::GRANITE
-                || down_block == Block::DIORITE
-            {
-                for dir in BlockDirection::all() {
-                    let offset_pos = pos.offset(dir.to_offset());
-                    let dir_state = chunk.get_block_state(&offset_pos.0);
-
-                    if !dir_state.to_state().is_air() && !Self::is_liquid(dir_state.to_block_id()) {
-                        continue;
-                    }
-
-                    let down_offset_pos = offset_pos.down();
-                    let down_offset_state = chunk.get_block_state(&down_offset_pos.0);
-
-                    if (down_offset_state.to_state().is_air()
-                        || Self::is_liquid(down_offset_state.to_block_id()))
-                        && dir != BlockDirection::Up
-                    {
-                        chunk.set_block_state(
-                            offset_pos.0.x,
-                            offset_pos.0.y,
-                            offset_pos.0.z,
-                            down_raw_state.to_state(),
-                        );
-                        continue;
-                    }
-
-                    let state1 =
-                        if state.to_state().is_air() || Self::is_liquid(state.to_block_id()) {
-                            Block::SAND.default_state
-                        } else {
-                            state.to_state()
-                        };
-                    chunk.set_block_state(offset_pos.0.x, offset_pos.0.y, offset_pos.0.z, state1);
-                }
-
-                chunk.set_block_state(pos.0.x, pos.0.y, pos.0.z, Block::CHEST.default_state);
-
-                let mut chest_nbt = NbtCompound::new();
-                chest_nbt.put_string("id", "minecraft:chest".to_string());
-                chest_nbt.put_int("x", pos.0.x);
-                chest_nbt.put_int("y", pos.0.y);
-                chest_nbt.put_int("z", pos.0.z);
-                chest_nbt.put_string("LootTable", "minecraft:chests/buried_treasure".to_string());
-
-                let mut random =
-                    LegacyRand::from_seed(hash_block_pos(pos.0.x, pos.0.y, pos.0.z) as u64);
-                chest_nbt.put_long("LootTableSeed", random.next_i64());
-
-                chunk.add_block_entity(chest_nbt);
-                return;
-            }
-            pos = pos.down();
-        }
-    }
 
     fn get_structure_piece(&self) -> &StructurePiece {
         &self.piece
@@ -145,10 +59,88 @@ impl StructurePieceBase for BuriedTreasurePiece {
     fn get_structure_piece_mut(&mut self) -> &mut StructurePiece {
         &mut self.piece
     }
-}
 
-impl BuriedTreasurePiece {
+    fn place(
-    fn is_liquid(id: BlockId) -> bool {
+        &mut self,
-        id == BlockId::WATER || id == BlockId::LAVA
+        chunk: &mut ProtoChunk,
+        _block_registry: &dyn WorldPortalExt,
+        _random: &mut RandomGenerator,
+        _seed: i64,
+        chunk_box: &BlockBox,
+    ) {
+        let bb = self.bounding_box();
+        let y = chunk.get_top_y(&HeightMap::OceanFloorWg, bb.min.x, bb.min.z);
+        let min_y = chunk.bottom_y() as i32;
+        let mut cur_y = y;
+
+        while cur_y > min_y {
+            let pos = Vector3::new(bb.min.x, cur_y, bb.min.z);
+            let below_pos = Vector3::new(bb.min.x, cur_y - 1, bb.min.z);
+
+            let current_state = chunk.get_block_state(&pos).to_state();
+            let below_state = chunk.get_block_state(&below_pos).to_state();
+            let below_block = Block::from_state_id(below_state.id);
+
+            if *below_block == Block::SANDSTONE
+                || *below_block == Block::STONE
+                || *below_block == Block::ANDESITE
+                || *below_block == Block::GRANITE
+                || *below_block == Block::DIORITE
+            {
+                let soft_state = if !current_state.is_air() && !current_state.is_liquid() {
+                    current_state
+                } else {
+                    Block::SAND.default_state
+                };
+
+                for dir in [
+                    BlockDirection::Down,
+                    BlockDirection::Up,
+                    BlockDirection::North,
+                    BlockDirection::South,
+                    BlockDirection::West,
+                    BlockDirection::East,
+                ] {
+                    let offset = dir.to_vector();
+                    let rel_pos = pos + offset;
+                    let rel_state = chunk.get_block_state(&rel_pos).to_state();
+
+                    if rel_state.is_air() || rel_state.is_liquid() {
+                        let below_rel_pos = rel_pos - Vector3::new(0, 1, 0);
+                        let below_rel_state = chunk.get_block_state(&below_rel_pos).to_state();
+
+                        if (below_rel_state.is_air() || below_rel_state.is_liquid())
+                            && dir != BlockDirection::Up
+                        {
+                            chunk.set_block_state(rel_pos.x, rel_pos.y, rel_pos.z, below_state);
+                        } else {
+                            chunk.set_block_state(rel_pos.x, rel_pos.y, rel_pos.z, soft_state);
+                        }
+                    }
+                }
+
+                self.piece.bounding_box = BlockBox::new(pos.x, pos.y, pos.z, pos.x, pos.y, pos.z);
+
+                if chunk_box.contains_pos(&pos) {
+                    chunk.set_block_state(pos.x, pos.y, pos.z, Block::CHEST.default_state);
+
+                    let mut nbt = NbtCompound::new();
+                    nbt.put_string("id", "minecraft:chest".to_string());
+                    nbt.put_int("x", pos.x);
+                    nbt.put_int("y", pos.y);
+                    nbt.put_int("z", pos.z);
+                    nbt.put_string("LootTable", "minecraft:chests/buried_treasure".to_string());
+
+                    let mut random =
+                        LegacyRand::from_seed(hash_block_pos(pos.x, pos.y, pos.z) as u64);
+                    nbt.put_long("LootTableSeed", random.next_i64());
+
+                    chunk.add_block_entity(nbt);
+                }
+                return;
+            }
+
+            cur_y -= 1;
+        }
     }
 }

crates/pumpkin-world/src/generation/structure/structures/desert_pyramid.rs

@@ -103,9 +103,19 @@ impl DesertPyramidPiece {
         true
     }
 
-    fn place_sand(&self, chunk: &mut ProtoChunk, bb: &BlockBox, x: i32, y: i32, z: i32) {
+    fn place_sand(
+        &self,
+        chunk: &mut ProtoChunk,
+        bb: &BlockBox,
+        x: i32,
+        y: i32,
+        z: i32,
+        potential_positions: &mut Vec<pumpkin_util::math::vector3::Vector3<i32>>,
+    ) {
         self.piece
             .add_block(chunk, Block::SAND.default_state, x, y, z, bb);
+        let world_pos = self.piece.offset_pos(x, y, z);
+        potential_positions.push(world_pos);
     }
 
     #[expect(clippy::too_many_arguments)]
@@ -119,11 +129,12 @@ impl DesertPyramidPiece {
         x1: i32,
         y1: i32,
         z1: i32,
+        potential_positions: &mut Vec<pumpkin_util::math::vector3::Vector3<i32>>,
     ) {
         for y in y0..=y1 {
             for x in x0..=x1 {
                 for z in z0..=z1 {
-                    self.place_sand(chunk, bb, x, y, z);
+                    self.place_sand(chunk, bb, x, y, z, potential_positions);
                 }
             }
         }
@@ -158,14 +169,17 @@ impl DesertPyramidPiece {
         z0: i32,
         x1: i32,
         z1: i32,
+        potential_positions: &mut Vec<pumpkin_util::math::vector3::Vector3<i32>>,
     ) {
         for x in x0..=x1 {
             for z in z0..=z1 {
                 self.place_collapsed_roof_piece(chunk, bb, random, x, y0, z);
             }
         }
-        // TODO: Pick a random collapsed roof position for sus sand placement in
+        let rx = x0 + random.next_bounded_i32(x1 - x0 + 1);
-        // the structure-level afterPlace pass when brushable support exists.
+        let rz = z0 + random.next_bounded_i32(z1 - z0 + 1);
+        let sus_pos = self.piece.offset_pos(rx, y0, rz);
+        potential_positions.push(sus_pos);
     }
 
     fn try_place_chest(
@@ -205,8 +219,36 @@ impl DesertPyramidPiece {
     }
 
     fn add_cellar(&self, chunk: &mut ProtoChunk, bb: &BlockBox, random: &mut RandomGenerator) {
-        self.add_cellar_stairs(chunk, bb, random);
+        let mut potential_positions = Vec::new();
-        self.add_cellar_room(chunk, bb, random);
+        self.add_cellar_stairs(chunk, bb, random, &mut potential_positions);
+        self.add_cellar_room(chunk, bb, random, &mut potential_positions);
+
+        for i in (1..potential_positions.len()).rev() {
+            let j = random.next_bounded_i32(i as i32 + 1) as usize;
+            potential_positions.swap(i, j);
+        }
+
+        let sus_count =
+            (random.next_bounded_i32(5) + 4).min(potential_positions.len() as i32) as usize;
+        for pos in potential_positions.into_iter().take(sus_count) {
+            if bb.contains_pos(&pos) {
+                chunk.set_block_state(pos.x, pos.y, pos.z, Block::SUSPICIOUS_SAND.default_state);
+                let mut nbt = NbtCompound::new();
+                nbt.put_string("id", "minecraft:brushable_block".to_string());
+                nbt.put_int("x", pos.x);
+                nbt.put_int("y", pos.y);
+                nbt.put_int("z", pos.z);
+                nbt.put_string(
+                    "LootTable",
+                    "minecraft:archaeology/desert_pyramid".to_string(),
+                );
+                nbt.put_long(
+                    "LootTableSeed",
+                    BlockPos::new(pos.x, pos.y, pos.z).as_long(),
+                );
+                chunk.add_block_entity(nbt);
+            }
+        }
     }
 
     fn add_cellar_stairs(
@@ -214,6 +256,7 @@ impl DesertPyramidPiece {
         chunk: &mut ProtoChunk,
         bb: &BlockBox,
         random: &mut RandomGenerator,
+        potential_positions: &mut Vec<pumpkin_util::math::vector3::Vector3<i32>>,
     ) {
         let west_stairs = Self::sandstone_stairs(HorizontalFacing::West);
         self.piece.add_block(chunk, west_stairs, 13, -1, 17, bb);
@@ -225,12 +268,12 @@ impl DesertPyramidPiece {
         let (x, y, z) = (16, -4, 13);
         let variant = random.next_bool();
 
-        self.piece.add_block(chunk, sand, x - 4, y + 4, z + 4, bb);
+        self.place_sand(chunk, bb, x - 4, y + 4, z + 4, potential_positions);
-        self.piece.add_block(chunk, sand, x - 3, y + 4, z + 4, bb);
+        self.place_sand(chunk, bb, x - 3, y + 4, z + 4, potential_positions);
-        self.piece.add_block(chunk, sand, x - 2, y + 4, z + 4, bb);
+        self.place_sand(chunk, bb, x - 2, y + 4, z + 4, potential_positions);
-        self.piece.add_block(chunk, sand, x - 1, y + 4, z + 4, bb);
+        self.place_sand(chunk, bb, x - 1, y + 4, z + 4, potential_positions);
-        self.piece.add_block(chunk, sand, x, y + 4, z + 4, bb);
+        self.place_sand(chunk, bb, x, y + 4, z + 4, potential_positions);
-        self.piece.add_block(chunk, sand, x - 2, y + 3, z + 4, bb);
+        self.place_sand(chunk, bb, x - 2, y + 3, z + 4, potential_positions);
         self.piece.add_block(
             chunk,
             if variant { sand } else { sandstone },
@@ -247,13 +290,19 @@ impl DesertPyramidPiece {
             z + 4,
             bb,
         );
-        self.piece.add_block(chunk, sand, x - 1, y + 2, z + 4, bb);
+        self.place_sand(chunk, bb, x - 1, y + 2, z + 4, potential_positions);
         self.piece.add_block(chunk, sandstone, x, y + 2, z + 4, bb);
-        self.piece.add_block(chunk, sand, x, y + 1, z + 4, bb);
+        self.place_sand(chunk, bb, x, y + 1, z + 4, potential_positions);
     }
 
     #[expect(clippy::too_many_lines)]
-    fn add_cellar_room(&self, chunk: &mut ProtoChunk, bb: &BlockBox, random: &mut RandomGenerator) {
+    fn add_cellar_room(
+        &self,
+        chunk: &mut ProtoChunk,
+        bb: &BlockBox,
+        random: &mut RandomGenerator,
+        potential_positions: &mut Vec<pumpkin_util::math::vector3::Vector3<i32>>,
+    ) {
         let (x, y, z) = (16, -4, 13);
         let cut = Block::CUT_SANDSTONE.default_state;
         let chiseled = Block::CHISELED_SANDSTONE.default_state;
@@ -416,8 +465,28 @@ impl DesertPyramidPiece {
             cut,
         );
 
-        self.place_sand_box(chunk, bb, x - 2, y + 1, z - 2, x + 2, y + 3, z + 2);
+        self.place_sand_box(
-        self.place_collapsed_roof(chunk, bb, random, x - 2, y + 4, z - 2, x + 2, z + 2);
+            chunk,
+            bb,
+            x - 2,
+            y + 1,
+            z - 2,
+            x + 2,
+            y + 3,
+            z + 2,
+            potential_positions,
+        );
+        self.place_collapsed_roof(
+            chunk,
+            bb,
+            random,
+            x - 2,
+            y + 4,
+            z - 2,
+            x + 2,
+            z + 2,
+            potential_positions,
+        );
         self.piece.add_block(chunk, blue, x, y, z, bb);
         self.piece.add_block(chunk, orange, x + 1, y, z - 1, bb);
         self.piece.add_block(chunk, orange, x + 1, y, z + 1, bb);
@@ -429,24 +498,24 @@ impl DesertPyramidPiece {
         self.piece.add_block(chunk, orange, x, y, z - 2, bb);
 
         self.piece.add_block(chunk, orange, x + 3, y, z, bb);
-        self.place_sand(chunk, bb, x + 3, y + 1, z);
+        self.place_sand(chunk, bb, x + 3, y + 1, z, potential_positions);
-        self.place_sand(chunk, bb, x + 3, y + 2, z);
+        self.place_sand(chunk, bb, x + 3, y + 2, z, potential_positions);
         self.piece.add_block(chunk, cut, x + 4, y + 1, z, bb);
         self.piece.add_block(chunk, chiseled, x + 4, y + 2, z, bb);
 
         self.piece.add_block(chunk, orange, x - 3, y, z, bb);
-        self.place_sand(chunk, bb, x - 3, y + 1, z);
+        self.place_sand(chunk, bb, x - 3, y + 1, z, potential_positions);
-        self.place_sand(chunk, bb, x - 3, y + 2, z);
+        self.place_sand(chunk, bb, x - 3, y + 2, z, potential_positions);
         self.piece.add_block(chunk, cut, x - 4, y + 1, z, bb);
         self.piece.add_block(chunk, chiseled, x - 4, y + 2, z, bb);
 
         self.piece.add_block(chunk, orange, x, y, z + 3, bb);
-        self.place_sand(chunk, bb, x, y + 1, z + 3);
+        self.place_sand(chunk, bb, x, y + 1, z + 3, potential_positions);
-        self.place_sand(chunk, bb, x, y + 2, z + 3);
+        self.place_sand(chunk, bb, x, y + 2, z + 3, potential_positions);
 
         self.piece.add_block(chunk, orange, x, y, z - 3, bb);
-        self.place_sand(chunk, bb, x, y + 1, z - 3);
+        self.place_sand(chunk, bb, x, y + 1, z - 3, potential_positions);
-        self.place_sand(chunk, bb, x, y + 2, z - 3);
+        self.place_sand(chunk, bb, x, y + 2, z - 3, potential_positions);
         self.piece.add_block(chunk, cut, x, y + 1, z - 4, bb);
         self.piece.add_block(chunk, chiseled, x, -2, z - 4, bb);
     }

crates/pumpkin-world/src/generation/structure/structures/jigsaw.rs

@@ -10,7 +10,7 @@ use crate::generation::structure::template::{
 use pumpkin_util::math::block_box::BlockBox;
 use pumpkin_util::math::position::BlockPos;
 use pumpkin_util::math::vector3::Vector3;
-use pumpkin_util::random::RandomImpl;
+use pumpkin_util::random::{RandomDeriverImpl, RandomImpl};
 use serde::Deserialize;
 use std::sync::Arc;
 
@@ -880,7 +880,11 @@ impl StructureGenerator for JigsawGenerator {
             &[]
         };
 
-        let pool_alias_lookup = PoolAliasLookup::from_bindings(pool_aliases, &mut context.random);
+        let mut alias_random =
+            pumpkin_util::random::legacy_rand::LegacyRand::from_seed(context.seed as u64)
+                .next_splitter()
+                .split_pos(start_pos.0.x, start_pos.0.y, start_pos.0.z);
+        let pool_alias_lookup = PoolAliasLookup::from_bindings(pool_aliases, &mut alias_random);
 
         let start_pool = if self.start_pool.is_empty() {
             structure

crates/pumpkin-world/src/generation/structure/structures/jungle_temple.rs

@@ -56,10 +56,10 @@ impl StructureGenerator for JungleTempleGenerator {
         collector.add_piece(Box::new(JungleTemplePiece {
             piece,
             height_adjusted: false,
-            placed_main_chest: true,
+            placed_main_chest: false,
-            placed_hidden_chest: true,
+            placed_hidden_chest: false,
-            placed_trap_1: true,
+            placed_trap_1: false,
-            placed_trap_2: true,
+            placed_trap_2: false,
         }));
 
         Some(StructurePosition {
@@ -508,18 +508,18 @@ impl StructurePieceBase for JungleTemplePiece {
         );
         self.piece
             .add_block(chunk, Block::MOSSY_COBBLESTONE.default_state, 3, -3, 1, bb);
-        /*if !self.placed_trap_1 {
+        if !self.placed_trap_1 {
-            self.placed_trap_1 = this.createDispenser(
+            self.placed_trap_1 = self.piece.add_dispenser(
                 chunk,
                 bb,
                 random,
                 3,
                 -2,
                 1,
-                Direction.NORTH,
+                Facing::North,
-                BuiltInLootTables.JUNGLE_TEMPLE_DISPENSER,
+                "minecraft:chests/jungle_temple_dispenser",
             );
-        }*/
+        }
 
         self.piece
             .add_block(chunk, Self::vine_facing(Facing::South), 3, -2, 2, bb);
@@ -592,27 +592,34 @@ impl StructurePieceBase for JungleTemplePiece {
                 .add_block(chunk, Block::MOSSY_COBBLESTONE.default_state, 9, -3, 4, bb);
         };
         self.piece.add_block(chunk, redstone_wire_ns, 9, -2, 4, bb);
-        /*if !self.placed_trap_2 {
+        if !self.placed_trap_2 {
-            self.placed_trap_2 = this.createDispenser(
+            self.placed_trap_2 = self.piece.add_dispenser(
                 chunk,
                 bb,
                 random,
                 9,
                 -2,
                 3,
-                Direction.WEST,
+                Facing::West,
-                BuiltInLootTables.JUNGLE_TEMPLE_DISPENSER,
+                "minecraft:chests/jungle_temple_dispenser",
             );
-        }*/
+        }
 
         self.piece
             .add_block(chunk, Self::vine_facing(Facing::East), 8, -1, 3, bb);
         self.piece
             .add_block(chunk, Self::vine_facing(Facing::East), 8, -2, 3, bb);
-        /*if !self.placed_main_chest {
+        if !self.placed_main_chest {
-            self.placed_main_chest =
+            self.placed_main_chest = self.piece.add_chest(
-                this.createChest(chunk, bb, random, 8, -3, 3, BuiltInLootTables.JUNGLE_TEMPLE);
+                chunk,
-        }*/
+                bb,
+                random,
+                8,
+                -3,
+                3,
+                "minecraft:chests/jungle_temple",
+            );
+        }
 
         self.piece
             .add_block(chunk, Block::MOSSY_COBBLESTONE.default_state, 9, -3, 2, bb);
@@ -738,17 +745,17 @@ impl StructurePieceBase for JungleTemplePiece {
             BlockState::from_id(props.to_state_id(&Block::REPEATER))
         };
         self.piece.add_block(chunk, repeater_state, 10, -2, 10, bb);
-        /*if !self.placed_hidden_chest {
+        if !self.placed_hidden_chest {
-            self.placed_hidden_chest = this.createChest(
+            self.placed_hidden_chest = self.piece.add_chest(
                 chunk,
                 bb,
                 random,
                 9,
                 -3,
                 10,
-                BuiltInLootTables.JUNGLE_TEMPLE,
+                "minecraft:chests/jungle_temple",
             );
-        }*/
+        }
     }
 }
 const fn set_side_dir(props: &mut RedstoneWireLikeProperties, facing: HorizontalFacing) {

crates/pumpkin-world/src/generation/structure/structures/mod.rs

@@ -74,7 +74,6 @@ pub trait StructurePieceBase: Send + Sync {
         &self,
         _start: &StructurePiece,
         _random: &mut RandomGenerator,
-        // TODO: this is only for Stronghold and should not be here
         _weights: &mut Vec<crate::generation::structure::structures::stronghold::PieceWeight>,
         _last_piece_type: &mut Option<StrongholdPieceType>,
         _has_portal_room: &mut bool,
@@ -388,15 +387,16 @@ impl StructurePiece {
         }
     }
 
+    #[must_use]
     pub const fn is_under_sea_level(
         &self,
-        chunk: &mut ProtoChunk,
+        chunk: &ProtoChunk,
         x: i32,
         y: i32,
         z: i32,
         box_limit: &BlockBox,
     ) -> bool {
-        let block_pos = self.offset_pos(x, y, z);
+        let block_pos = self.offset_pos(x, y + 1, z);
 
         if !box_limit.contains_pos(&block_pos) {
             return false;
@@ -503,6 +503,43 @@ impl StructurePiece {
 
         true
     }
+
+    #[allow(clippy::too_many_arguments)]
+    pub fn add_dispenser(
+        &self,
+        chunk: &mut ProtoChunk,
+        bb: &BlockBox,
+        random: &mut RandomGenerator,
+        x: i32,
+        y: i32,
+        z: i32,
+        facing: pumpkin_data::block_properties::Facing,
+        loot_table: &str,
+    ) -> bool {
+        use pumpkin_data::block_properties::DispenserLikeProperties;
+        use pumpkin_nbt::compound::NbtCompound;
+
+        let world_pos = self.offset_pos(x, y, z);
+        if !bb.contains_pos(&world_pos) {
+            return false;
+        }
+
+        let mut props = DispenserLikeProperties::default(&Block::DISPENSER);
+        props.facing = facing;
+        let state = BlockState::from_id(props.to_state_id(&Block::DISPENSER));
+        chunk.set_block_state(world_pos.x, world_pos.y, world_pos.z, state);
+
+        let mut nbt = NbtCompound::new();
+        nbt.put_string("id", "minecraft:dispenser".to_string());
+        nbt.put_int("x", world_pos.x);
+        nbt.put_int("y", world_pos.y);
+        nbt.put_int("z", world_pos.z);
+        nbt.put_string("LootTable", loot_table.to_string());
+        nbt.put_long("LootTableSeed", random.next_i64());
+        chunk.add_block_entity(nbt);
+
+        true
+    }
 }
 
 impl StructurePieceBase for StructurePiece {
@@ -625,6 +662,24 @@ impl StructurePiecesCollector {
         k
     }
 
+    pub fn move_inside_heights(
+        &mut self,
+        random: &mut RandomGenerator,
+        lowest_allowed: i32,
+        highest_allowed: i32,
+    ) {
+        let bounding_box = self.get_bounding_box();
+        let y_span = bounding_box.max.y - bounding_box.min.y + 1;
+        let height_span = highest_allowed - lowest_allowed + 1 - y_span;
+        let y0_pos = if height_span > 1 {
+            lowest_allowed + random.next_bounded_i32(height_span)
+        } else {
+            lowest_allowed
+        };
+        let dy = y0_pos - bounding_box.min.y;
+        self.shift(dy);
+    }
+
     pub fn get_bounding_box(&mut self) -> BlockBox {
         if let Some(bbox) = self.cached_box {
             return bbox;

crates/pumpkin-world/src/generation/structure/structures/nether_fortress/corridor_exit.rs

@@ -223,11 +223,14 @@ impl StructurePieceBase for CorridorExitPiece {
         p.add_block(chunk, nb, 6, 0, 6, &bb);
         p.add_block(chunk, Block::LAVA.default_state, 6, 5, 6, &bb);
 
-        // Schedule lava fluid tick
+        let lava_pos = p.offset_pos(6, 5, 6);
-        // TODO
+        if bb.contains_pos(&lava_pos) {
-        // let lava_pos = p.offset_pos(6, 5, 6);
+            chunk.schedule_fluid_tick(
-        // if bb.contains_pos(&lava_pos) {
+                lava_pos.x,
-        //     chunk.schedule_fluid_tick(&lava_pos, 0);
+                lava_pos.y,
-        // }
+                lava_pos.z,
+                &pumpkin_data::fluid::Fluid::LAVA,
+            );
+        }
     }
 }

crates/pumpkin-world/src/generation/structure/structures/nether_fortress/mod.rs

@@ -83,6 +83,8 @@ impl StructureGenerator for NetherFortressGenerator {
             collector.add_piece(piece);
         }
 
+        collector.move_inside_heights(&mut random, 48, 70);
+
         Some(StructurePosition {
             start_pos: BlockPos::new(
                 section_coords::section_to_block(context.chunk_x),

crates/pumpkin-world/src/generation/structure/structures/ocean_ruin.rs

@@ -1,43 +1,28 @@
 use std::sync::Arc;
 
-use pumpkin_data::block_rotation::Rotation;
+use pumpkin_data::{
+    Block, BlockState, Mirror, Rotation,
+    block_properties::{ChestLikeProperties, HorizontalFacing},
+};
+use pumpkin_nbt::compound::NbtCompound;
 use pumpkin_util::{
-    math::{block_box::BlockBox, position::BlockPos},
+    HeightMap,
-    random::{RandomGenerator, RandomImpl},
+    math::{block_box::BlockBox, position::BlockPos, vector3::Vector3},
+    random::{RandomGenerator, RandomImpl, hash_block_pos, legacy_rand::LegacyRand},
 };
 
 use crate::{
     ProtoChunk,
-    generation::{
+    generation::structure::{
-        positions::chunk_pos::{get_center_x, get_center_z},
+        piece::StructurePieceType,
-        structure::{
+        structures::{
-            piece::StructurePieceType,
+            StructureGenerator, StructureGeneratorContext, StructurePiece, StructurePieceBase,
-            structures::{
+            StructurePiecesCollector, StructurePosition, WorldPortalExt,
-                StructureGenerator, StructureGeneratorContext, StructurePiece, StructurePieceBase,
-                StructurePiecesCollector, StructurePosition, WorldPortalExt,
-            },
-            template::{StructureTemplate, get_template, place_template},
         },
+        template::{BlockStateResolver, StructurePlaceSettings, StructureTemplate, get_template},
     },
 };
 
-const COLD_RUINS: &[&str] = &[
-    "underwater_ruin/brick_1",
-    "underwater_ruin/brick_2",
-    "underwater_ruin/brick_3",
-    "underwater_ruin/brick_4",
-    "underwater_ruin/brick_5",
-    "underwater_ruin/brick_6",
-    "underwater_ruin/brick_7",
-    "underwater_ruin/brick_8",
-    "underwater_ruin/cracked_1",
-    "underwater_ruin/cracked_2",
-    "underwater_ruin/cracked_3",
-    "underwater_ruin/mossy_1",
-    "underwater_ruin/mossy_2",
-    "underwater_ruin/mossy_3",
-];
-
 const WARM_RUINS: &[&str] = &[
     "underwater_ruin/warm_1",
     "underwater_ruin/warm_2",
@@ -47,8 +32,67 @@ const WARM_RUINS: &[&str] = &[
     "underwater_ruin/warm_6",
     "underwater_ruin/warm_7",
     "underwater_ruin/warm_8",
+];
+
+const BIG_WARM_RUINS: &[&str] = &[
     "underwater_ruin/big_warm_4",
     "underwater_ruin/big_warm_5",
+    "underwater_ruin/big_warm_6",
+    "underwater_ruin/big_warm_7",
+];
+
+const RUINS_BRICK: &[&str] = &[
+    "underwater_ruin/brick_1",
+    "underwater_ruin/brick_2",
+    "underwater_ruin/brick_3",
+    "underwater_ruin/brick_4",
+    "underwater_ruin/brick_5",
+    "underwater_ruin/brick_6",
+    "underwater_ruin/brick_7",
+    "underwater_ruin/brick_8",
+];
+
+const RUINS_CRACKED: &[&str] = &[
+    "underwater_ruin/cracked_1",
+    "underwater_ruin/cracked_2",
+    "underwater_ruin/cracked_3",
+    "underwater_ruin/cracked_4",
+    "underwater_ruin/cracked_5",
+    "underwater_ruin/cracked_6",
+    "underwater_ruin/cracked_7",
+    "underwater_ruin/cracked_8",
+];
+
+const RUINS_MOSSY: &[&str] = &[
+    "underwater_ruin/mossy_1",
+    "underwater_ruin/mossy_2",
+    "underwater_ruin/mossy_3",
+    "underwater_ruin/mossy_4",
+    "underwater_ruin/mossy_5",
+    "underwater_ruin/mossy_6",
+    "underwater_ruin/mossy_7",
+    "underwater_ruin/mossy_8",
+];
+
+const BIG_RUINS_BRICK: &[&str] = &[
+    "underwater_ruin/big_brick_1",
+    "underwater_ruin/big_brick_2",
+    "underwater_ruin/big_brick_3",
+    "underwater_ruin/big_brick_8",
+];
+
+const BIG_RUINS_CRACKED: &[&str] = &[
+    "underwater_ruin/big_cracked_1",
+    "underwater_ruin/big_cracked_2",
+    "underwater_ruin/big_cracked_3",
+    "underwater_ruin/big_cracked_8",
+];
+
+const BIG_RUINS_MOSSY: &[&str] = &[
+    "underwater_ruin/big_mossy_1",
+    "underwater_ruin/big_mossy_2",
+    "underwater_ruin/big_mossy_3",
+    "underwater_ruin/big_mossy_8",
 ];
 
 pub struct OceanRuinGenerator {
@@ -60,81 +104,566 @@ impl StructureGenerator for OceanRuinGenerator {
         &self,
         mut context: StructureGeneratorContext<'_>,
     ) -> Option<StructurePosition> {
-        let chunk_center_x = get_center_x(context.chunk_x);
+        let start_x = context.chunk_x << 4;
-        let chunk_center_z = get_center_z(context.chunk_z);
+        let start_z = context.chunk_z << 4;
+        let position = Vector3::new(start_x, 90, start_z);
 
         let rotation_idx = context.random.next_bounded_i32(4) as u8;
         let rotation = Rotation::from_index(rotation_idx);
 
-        let pool = if self.is_warm { WARM_RUINS } else { COLD_RUINS };
+        let mut collector = StructurePiecesCollector::default();
-        let template_idx = context.random.next_bounded_i32(pool.len() as i32) as usize;
+        add_pieces(
-        let template_name = pool[template_idx];
+            &mut collector,
-        let template = get_template(template_name)?;
+            position,
-
+            rotation,
-        let size = template.size;
+            &mut context.random,
-        let bounding_box = BlockBox::new(
+            self.is_warm,
-            chunk_center_x - size.x / 2,
+            0.3,
-            context.min_y,
+            0.7,
-            chunk_center_z - size.z / 2,
-            chunk_center_x + size.x / 2,
-            256,
-            chunk_center_z + size.z / 2,
         );
 
-        let mut collector = StructurePiecesCollector::default();
-        collector.add_piece(Box::new(OceanRuinPiece {
-            piece: StructurePiece::new(StructurePieceType::OceanTemple, bounding_box, 0),
-            template,
-            rotation,
-        }));
-
         Some(StructurePosition {
-            start_pos: BlockPos::new(chunk_center_x, 64, chunk_center_z),
+            start_pos: BlockPos::new(start_x + 8, 64, start_z + 8),
             collector: Arc::new(collector.into()),
         })
     }
 }
 
-pub struct OceanRuinPiece {
+fn add_pieces(
-    piece: StructurePiece,
+    collector: &mut StructurePiecesCollector,
-    template: Arc<StructureTemplate>,
+    position: Vector3<i32>,
     rotation: Rotation,
+    random: &mut RandomGenerator,
+    is_warm: bool,
+    large_probability: f32,
+    cluster_probability: f32,
+) {
+    let is_large = random.next_f32() <= large_probability;
+    let base_integrity = if is_large { 0.9 } else { 0.8 };
+    add_piece(
+        collector,
+        position,
+        rotation,
+        random,
+        is_warm,
+        is_large,
+        base_integrity,
+    );
+    if is_large && random.next_f32() <= cluster_probability {
+        add_cluster_ruins(collector, random, rotation, position, is_warm);
+    }
+}
+
+fn add_cluster_ruins(
+    collector: &mut StructurePiecesCollector,
+    random: &mut RandomGenerator,
+    rotation: Rotation,
+    p: Vector3<i32>,
+    is_warm: bool,
+) {
+    let parent_pos = Vector3::new(p.x, 90, p.z);
+    let parent_corner = StructureTemplate::transform_block_pos(
+        Vector3::new(15, 0, 15),
+        Mirror::None,
+        rotation,
+        Vector3::new(0, 0, 0),
+    ) + parent_pos;
+
+    let parent_bb = BlockBox::new(
+        parent_pos.x.min(parent_corner.x),
+        parent_pos.y.min(parent_corner.y),
+        parent_pos.z.min(parent_corner.z),
+        parent_pos.x.max(parent_corner.x),
+        parent_pos.y.max(parent_corner.y),
+        parent_pos.z.max(parent_corner.z),
+    );
+
+    let parent_bottom_left = Vector3::new(
+        parent_pos.x.min(parent_corner.x),
+        parent_pos.y,
+        parent_pos.z.min(parent_corner.z),
+    );
+
+    let mut all_positions = generate_cluster_positions(random, parent_bottom_left);
+    let ruins_count = random.next_bounded_i32(5) + 4;
+
+    for _ in 0..ruins_count {
+        if all_positions.is_empty() {
+            break;
+        }
+        let idx = random.next_bounded_i32(all_positions.len() as i32) as usize;
+        let pos = all_positions.swap_remove(idx);
+        let next_rotation = Rotation::from_index(random.next_bounded_i32(4) as u8);
+        let next_corner = StructureTemplate::transform_block_pos(
+            Vector3::new(5, 0, 6),
+            Mirror::None,
+            next_rotation,
+            Vector3::new(0, 0, 0),
+        ) + pos;
+
+        let next_bb = BlockBox::new(
+            pos.x.min(next_corner.x),
+            pos.y.min(next_corner.y),
+            pos.z.min(next_corner.z),
+            pos.x.max(next_corner.x),
+            pos.y.max(next_corner.y),
+            pos.z.max(next_corner.z),
+        );
+
+        if !next_bb.intersects(&parent_bb) {
+            add_piece(collector, pos, next_rotation, random, is_warm, false, 0.8);
+        }
+    }
+}
+
+fn generate_cluster_positions(
+    random: &mut RandomGenerator,
+    origin: Vector3<i32>,
+) -> Vec<Vector3<i32>> {
+    vec![
+        origin
+            + Vector3::new(
+                -16 + random.next_bounded_i32(8) + 1,
+                0,
+                16 + random.next_bounded_i32(7) + 1,
+            ),
+        origin
+            + Vector3::new(
+                -16 + random.next_bounded_i32(8) + 1,
+                0,
+                random.next_bounded_i32(7) + 1,
+            ),
+        origin
+            + Vector3::new(
+                -16 + random.next_bounded_i32(8) + 1,
+                0,
+                -16 + random.next_bounded_i32(5) + 4,
+            ),
+        origin
+            + Vector3::new(
+                random.next_bounded_i32(7) + 1,
+                0,
+                16 + random.next_bounded_i32(7) + 1,
+            ),
+        origin
+            + Vector3::new(
+                random.next_bounded_i32(7) + 1,
+                0,
+                -16 + random.next_bounded_i32(3) + 4,
+            ),
+        origin
+            + Vector3::new(
+                16 + random.next_bounded_i32(7) + 1,
+                0,
+                16 + random.next_bounded_i32(6) + 3,
+            ),
+        origin
+            + Vector3::new(
+                16 + random.next_bounded_i32(7) + 1,
+                0,
+                random.next_bounded_i32(7) + 1,
+            ),
+        origin
+            + Vector3::new(
+                16 + random.next_bounded_i32(7) + 1,
+                0,
+                -16 + random.next_bounded_i32(5) + 4,
+            ),
+    ]
+}
+
+fn add_piece(
+    collector: &mut StructurePiecesCollector,
+    position: Vector3<i32>,
+    rotation: Rotation,
+    random: &mut RandomGenerator,
+    is_warm: bool,
+    is_large: bool,
+    base_integrity: f32,
+) {
+    if is_warm {
+        let pool = if is_large { BIG_WARM_RUINS } else { WARM_RUINS };
+        let template_idx = random.next_bounded_i32(pool.len() as i32) as usize;
+        let template_name = pool[template_idx];
+        if let Some(template) = get_template(template_name) {
+            collector.add_piece(Box::new(OceanRuinPiece::new(
+                template,
+                template_name.to_string(),
+                position,
+                rotation,
+                base_integrity,
+                is_warm,
+                is_large,
+            )));
+        }
+    } else {
+        let (bricks, cracked, mossy) = if is_large {
+            (BIG_RUINS_BRICK, BIG_RUINS_CRACKED, BIG_RUINS_MOSSY)
+        } else {
+            (RUINS_BRICK, RUINS_CRACKED, RUINS_MOSSY)
+        };
+        let idx = random.next_bounded_i32(bricks.len() as i32) as usize;
+        if let Some(template) = get_template(bricks[idx]) {
+            collector.add_piece(Box::new(OceanRuinPiece::new(
+                template,
+                bricks[idx].to_string(),
+                position,
+                rotation,
+                base_integrity,
+                is_warm,
+                is_large,
+            )));
+        }
+        if let Some(template) = get_template(cracked[idx]) {
+            collector.add_piece(Box::new(OceanRuinPiece::new(
+                template,
+                cracked[idx].to_string(),
+                position,
+                rotation,
+                0.7,
+                is_warm,
+                is_large,
+            )));
+        }
+        if let Some(template) = get_template(mossy[idx]) {
+            collector.add_piece(Box::new(OceanRuinPiece::new(
+                template,
+                mossy[idx].to_string(),
+                position,
+                rotation,
+                0.5,
+                is_warm,
+                is_large,
+            )));
+        }
+    }
+}
+
+pub struct OceanRuinPiece {
+    pub piece: StructurePiece,
+    pub template: Arc<StructureTemplate>,
+    pub template_name: String,
+    pub template_position: Vector3<i32>,
+    pub rotation: Rotation,
+    pub integrity: f32,
+    pub is_warm: bool,
+    pub is_large: bool,
+}
+
+impl OceanRuinPiece {
+    #[must_use]
+    pub fn new(
+        template: Arc<StructureTemplate>,
+        template_name: String,
+        position: Vector3<i32>,
+        rotation: Rotation,
+        integrity: f32,
+        is_warm: bool,
+        is_large: bool,
+    ) -> Self {
+        let place_settings = StructurePlaceSettings::new()
+            .set_rotation(rotation)
+            .set_mirror(Mirror::None);
+        let bounding_box = template.get_bounding_box(&place_settings, position);
+        Self {
+            piece: StructurePiece::new(StructurePieceType::OceanTemple, bounding_box, 0),
+            template,
+            template_name,
+            template_position: position,
+            rotation,
+            integrity,
+            is_warm,
+            is_large,
+        }
+    }
+
+    fn calculate_height(pos: Vector3<i32>, corner: Vector3<i32>, chunk: &ProtoChunk) -> i32 {
+        let mut new_y = pos.y;
+        let mut min_y = 512;
+        let top_y = new_y - 1;
+        let mut area = 0;
+        let min_x = pos.x.min(corner.x);
+        let max_x = pos.x.max(corner.x);
+        let min_z = pos.z.min(corner.z);
+        let max_z = pos.z.max(corner.z);
+
+        for x in min_x..=max_x {
+            for z in min_z..=max_z {
+                let floor_y = chunk.get_top_y(&HeightMap::OceanFloorWg, x, z) - 1;
+                min_y = min_y.min(floor_y);
+                if floor_y < top_y - 2 {
+                    area += 1;
+                }
+            }
+        }
+
+        let width = (pos.x - corner.x).abs();
+        if top_y - min_y > 2 && area > width - 2 {
+            new_y = min_y + 1;
+        }
+
+        new_y
+    }
 }
 
 impl StructurePieceBase for OceanRuinPiece {
     fn as_any(&self) -> &dyn std::any::Any {
         self
     }
+
     fn get_structure_piece(&self) -> &StructurePiece {
         &self.piece
     }
+
     fn get_structure_piece_mut(&mut self) -> &mut StructurePiece {
         &mut self.piece
     }
+
+    fn translate(&mut self, x: i32, y: i32, z: i32) {
+        self.piece.translate(x, y, z);
+        self.template_position += Vector3::new(x, y, z);
+    }
+
+    #[allow(clippy::too_many_lines)]
     fn place(
         &mut self,
         chunk: &mut ProtoChunk,
         _block_registry: &dyn WorldPortalExt,
-        _random: &mut RandomGenerator,
+        random: &mut RandomGenerator,
         _seed: i64,
         chunk_box: &BlockBox,
     ) {
-        let origin = self.piece.bounding_box.min;
+        let height = chunk.get_top_y(
-        let sample_y = chunk.get_top_y(&pumpkin_util::HeightMap::OceanFloorWg, origin.x, origin.z);
+            &HeightMap::OceanFloorWg,
-        let target_y = sample_y - 2; // slightly buried on ocean floor
+            self.template_position.x,
-        let mut final_origin = origin;
+            self.template_position.z,
-        final_origin.y = target_y;
-
-        place_template(
-            chunk,
-            &self.template,
-            final_origin,
-            (0, 0),
-            self.rotation,
-            true, // skip air
-            true, // apply waterlogging
-            &[],
-            Some(chunk_box),
         );
+        let mut pos = Vector3::new(self.template_position.x, height, self.template_position.z);
+        let size = self.template.size;
+        let corner = StructureTemplate::transform_block_pos(
+            Vector3::new(size.x - 1, 0, size.z - 1),
+            Mirror::None,
+            self.rotation,
+            Vector3::new(0, 0, 0),
+        ) + pos;
+
+        pos.y = Self::calculate_height(pos, corner, chunk);
+        self.template_position = pos;
+        let place_settings = StructurePlaceSettings::new()
+            .set_rotation(self.rotation)
+            .set_mirror(Mirror::None);
+        self.piece.bounding_box = self
+            .template
+            .get_bounding_box(&place_settings, self.template_position);
+        let box_limit = self.piece.bounding_box;
+
+        let mut suspicious_count = 0;
+
+        for block in &self.template.blocks {
+            let palette_entry = &self.template.palette[block.state as usize];
+
+            if palette_entry.name == "minecraft:structure_void"
+                || palette_entry.name == "structure_void"
+            {
+                continue;
+            }
+
+            let rel_pos = StructureTemplate::transform_block_pos(
+                block.pos,
+                Mirror::None,
+                self.rotation,
+                Vector3::new(0, 0, 0),
+            );
+            let world_pos = self.template_position + rel_pos;
+
+            if !box_limit.contains_pos(&world_pos) || !chunk_box.contains_pos(&world_pos) {
+                continue;
+            }
+
+            if palette_entry.name == "minecraft:structure_block" {
+                if let Some(nbt) = &block.nbt {
+                    let mode = nbt.get_string("mode").unwrap_or("");
+                    if mode == "DATA" {
+                        let metadata = nbt.get_string("metadata").unwrap_or("");
+                        if metadata == "chest" {
+                            let is_water =
+                                chunk.get_block_state(&world_pos).to_block_id() == Block::WATER.id;
+                            let mut props = ChestLikeProperties::default(&Block::CHEST);
+                            props.facing = HorizontalFacing::North;
+                            props.waterlogged = is_water;
+                            let chest_state = BlockState::from_id(props.to_state_id(&Block::CHEST));
+                            chunk.set_block_state(
+                                world_pos.x,
+                                world_pos.y,
+                                world_pos.z,
+                                chest_state,
+                            );
+
+                            let mut chest_nbt = NbtCompound::new();
+                            chest_nbt.put_string("id", "minecraft:chest".to_string());
+                            chest_nbt.put_int("x", world_pos.x);
+                            chest_nbt.put_int("y", world_pos.y);
+                            chest_nbt.put_int("z", world_pos.z);
+                            let loot_table = if self.is_large {
+                                "minecraft:chests/underwater_ruin_big"
+                            } else {
+                                "minecraft:chests/underwater_ruin_small"
+                            };
+                            chest_nbt.put_string("LootTable", loot_table.to_string());
+                            let mut rng = LegacyRand::from_seed(hash_block_pos(
+                                world_pos.x,
+                                world_pos.y,
+                                world_pos.z,
+                            )
+                                as u64);
+                            chest_nbt.put_long("LootTableSeed", rng.next_i64());
+                            chunk.add_block_entity(chest_nbt);
+                        } else if metadata == "drowned" {
+                            let replacement = if world_pos.y > chunk.get_sea_level() {
+                                Block::AIR.default_state
+                            } else {
+                                Block::WATER.default_state
+                            };
+                            chunk.set_block_state(
+                                world_pos.x,
+                                world_pos.y,
+                                world_pos.z,
+                                replacement,
+                            );
+                        }
+                    }
+                }
+                continue;
+            }
+
+            if self.integrity < 0.999 && random.next_f32() > self.integrity {
+                continue;
+            }
+
+            if palette_entry.name == "minecraft:air" || palette_entry.name == "air" {
+                continue;
+            }
+
+            if self.is_warm
+                && palette_entry.name == "minecraft:sand"
+                && suspicious_count < 5
+                && random.next_f32() < 0.45
+            {
+                suspicious_count += 1;
+                chunk.set_block_state(
+                    world_pos.x,
+                    world_pos.y,
+                    world_pos.z,
+                    Block::SUSPICIOUS_SAND.default_state,
+                );
+
+                let mut nbt = NbtCompound::new();
+                nbt.put_string("id", "minecraft:brushable_block".to_string());
+                nbt.put_int("x", world_pos.x);
+                nbt.put_int("y", world_pos.y);
+                nbt.put_int("z", world_pos.z);
+                nbt.put_string(
+                    "LootTable",
+                    "minecraft:archaeology/ocean_ruin_warm".to_string(),
+                );
+                let mut rng =
+                    LegacyRand::from_seed(
+                        hash_block_pos(world_pos.x, world_pos.y, world_pos.z) as u64
+                    );
+                nbt.put_long("LootTableSeed", rng.next_i64());
+                chunk.add_block_entity(nbt);
+                continue;
+            } else if !self.is_warm
+                && palette_entry.name == "minecraft:gravel"
+                && suspicious_count < 5
+                && random.next_f32() < 0.45
+            {
+                suspicious_count += 1;
+                chunk.set_block_state(
+                    world_pos.x,
+                    world_pos.y,
+                    world_pos.z,
+                    Block::SUSPICIOUS_GRAVEL.default_state,
+                );
+
+                let mut nbt = NbtCompound::new();
+                nbt.put_string("id", "minecraft:brushable_block".to_string());
+                nbt.put_int("x", world_pos.x);
+                nbt.put_int("y", world_pos.y);
+                nbt.put_int("z", world_pos.z);
+                nbt.put_string(
+                    "LootTable",
+                    "minecraft:archaeology/ocean_ruin_cold".to_string(),
+                );
+                let mut rng =
+                    LegacyRand::from_seed(
+                        hash_block_pos(world_pos.x, world_pos.y, world_pos.z) as u64
+                    );
+                nbt.put_long("LootTableSeed", rng.next_i64());
+                chunk.add_block_entity(nbt);
+                continue;
+            }
+
+            let Some(mut state) =
+                BlockStateResolver::resolve(palette_entry, self.rotation, Mirror::None)
+            else {
+                continue;
+            };
+
+            if chunk.get_block_state(&world_pos).to_block_id() == Block::WATER.id {
+                let mut modified_entry = palette_entry.clone();
+                if let Some((_, waterlogged)) = modified_entry
+                    .properties
+                    .iter_mut()
+                    .find(|(name, _)| name == "waterlogged")
+                {
+                    *waterlogged = "true".to_string();
+                    if let Some(waterlogged_state) =
+                        BlockStateResolver::resolve(&modified_entry, self.rotation, Mirror::None)
+                    {
+                        state = waterlogged_state;
+                    }
+                }
+            }
+
+            chunk.set_block_state(world_pos.x, world_pos.y, world_pos.z, state);
+
+            let final_block = Block::from_id(state.id.to_block_id());
+            let block_entity_id =
+                crate::generation::structure::template::get_block_entity_id(final_block.name);
+            if block.nbt.is_some() || block_entity_id.is_some() {
+                let fallback_id = block_entity_id.unwrap_or(final_block.name);
+                let mut placed_nbt = NbtCompound::new();
+
+                placed_nbt.put_string("id", fallback_id.to_string());
+                placed_nbt.put_int("x", world_pos.x);
+                placed_nbt.put_int("y", world_pos.y);
+                placed_nbt.put_int("z", world_pos.z);
+
+                if let Some(template_nbt) = &block.nbt {
+                    for (key, value) in &template_nbt.child_tags {
+                        if key.as_ref() != "x"
+                            && key.as_ref() != "y"
+                            && key.as_ref() != "z"
+                            && key.as_ref() != "id"
+                        {
+                            placed_nbt.child_tags.insert(key.clone(), value.clone());
+                        }
+                    }
+                }
+
+                if placed_nbt.get_string("LootTable").is_some()
+                    && placed_nbt.get_long("LootTableSeed").is_none()
+                {
+                    let mut rng =
+                        LegacyRand::from_seed(
+                            hash_block_pos(world_pos.x, world_pos.y, world_pos.z) as u64,
+                        );
+                    placed_nbt.put_long("LootTableSeed", rng.next_i64());
+                }
+
+                chunk.add_block_entity(placed_nbt);
+            }
+        }
     }
 }

crates/pumpkin-world/src/generation/structure/structures/stronghold/mod.rs

@@ -63,10 +63,16 @@ impl StructureGenerator for StrongholdGenerator {
         context: StructureGeneratorContext<'_>,
     ) -> Option<StructurePosition> {
         let mut collector = StructurePiecesCollector::default();
-        let mut random = context.random;
+        let mut tries: i64 = 0;
 
         loop {
             collector.clear();
+            let mut random = crate::generation::structure::structures::create_chunk_random(
+                context.seed.wrapping_add(tries),
+                context.chunk_x,
+                context.chunk_z,
+            );
+            tries += 1;
             let mut weights = get_initial_weights();
             let mut last_piece_type: Option<StrongholdPieceType> = None;
             let mut has_portal_room = false;

crates/pumpkin-world/src/generation/structure/structures/stronghold/portal_room.rs

@@ -81,7 +81,6 @@ impl StructurePieceBase for PortalRoomPiece {
         &self,
         _start: &StructurePiece,
         _random: &mut RandomGenerator,
-        // TODO: this is only for Stronghold and should not be here
         _weights: &mut Vec<PieceWeight>,
         _last_piece_type: &mut Option<StrongholdPieceType>,
         has_portal_room: &mut bool,

crates/pumpkin-world/src/generation/structure/structures/swamp_hut.rs

@@ -1,6 +1,10 @@
 use std::sync::Arc;
 
-use pumpkin_data::Block;
+use pumpkin_data::{
+    Block, BlockState,
+    block_properties::{HorizontalFacing, OakStairsLikeProperties, StairsShape},
+};
+use pumpkin_nbt::compound::NbtCompound;
 use pumpkin_util::{
     BlockDirection,
     math::{block_box::BlockBox, position::BlockPos},
@@ -11,13 +15,13 @@ use serde::Deserialize;
 use crate::{
     ProtoChunk,
     generation::{
-        positions::chunk_pos::{get_center_x, get_center_z},
+        positions::chunk_pos::{start_block_x, start_block_z},
         structure::{
             piece::StructurePieceType,
             shiftable_piece::ShiftableStructurePiece,
             structures::{
                 StructureGenerator, StructureGeneratorContext, StructurePieceBase,
-                StructurePiecesCollector, StructurePosition,
+                StructurePiecesCollector, StructurePosition, WorldPortalExt,
             },
         },
     },
@@ -31,21 +35,27 @@ impl StructureGenerator for SwampHutGenerator {
         &self,
         mut context: StructureGeneratorContext<'_>,
     ) -> Option<StructurePosition> {
-        let x = get_center_x(context.chunk_x);
+        let x = start_block_x(context.chunk_x);
-        let z = get_center_z(context.chunk_z);
+        let z = start_block_z(context.chunk_z);
+
+        let facing = BlockDirection::get_random_horizontal_direction(&mut context.random);
+        let mut shiftable_piece = ShiftableStructurePiece::new(
+            StructurePieceType::SwampHut,
+            x,
+            64,
+            z,
+            7,
+            7,
+            9,
+            facing.get_axis(),
+        );
+        shiftable_piece.piece.set_facing(Some(facing));
 
         let mut collector = StructurePiecesCollector::default();
         collector.add_piece(Box::new(SwampHutPiece {
-            shiftable_structure_piece: ShiftableStructurePiece::new(
+            shiftable_structure_piece: shiftable_piece,
-                StructurePieceType::SwampHut,
+            spawned_witch: false,
-                x,
+            spawned_cat: false,
-                64,
-                z,
-                7,
-                7,
-                9,
-                BlockDirection::get_random_horizontal_direction(&mut context.random).get_axis(),
-            ),
         }));
 
         Some(StructurePosition {
@@ -57,17 +67,72 @@ impl StructureGenerator for SwampHutGenerator {
 
 pub struct SwampHutPiece {
     shiftable_structure_piece: ShiftableStructurePiece,
+    spawned_witch: bool,
+    spawned_cat: bool,
+}
+
+impl SwampHutPiece {
+    fn spruce_stairs(facing: HorizontalFacing, shape: StairsShape) -> &'static BlockState {
+        let mut props = OakStairsLikeProperties::default(&Block::SPRUCE_STAIRS);
+        props.facing = facing;
+        props.shape = shape;
+        BlockState::from_id(props.to_state_id(&Block::SPRUCE_STAIRS))
+    }
+
+    fn spawn_witch(&mut self, chunk: &mut ProtoChunk, chunk_box: &BlockBox) {
+        if !self.spawned_witch {
+            let pos = self.shiftable_structure_piece.piece.offset_pos(2, 2, 5);
+            if chunk_box.contains_pos(&pos) {
+                self.spawned_witch = true;
+                let mut nbt = NbtCompound::new();
+                nbt.put_string("id", "minecraft:witch".to_string());
+                nbt.put_list(
+                    "Pos",
+                    vec![
+                        (f64::from(pos.x) + 0.5).into(),
+                        f64::from(pos.y).into(),
+                        (f64::from(pos.z) + 0.5).into(),
+                    ],
+                );
+                nbt.put_bool("PersistenceRequired", true);
+                chunk.add_structure_entity(nbt);
+            }
+        }
+    }
+
+    fn spawn_cat(&mut self, chunk: &mut ProtoChunk, chunk_box: &BlockBox) {
+        if !self.spawned_cat {
+            let pos = self.shiftable_structure_piece.piece.offset_pos(2, 2, 5);
+            if chunk_box.contains_pos(&pos) {
+                self.spawned_cat = true;
+                let mut nbt = NbtCompound::new();
+                nbt.put_string("id", "minecraft:cat".to_string());
+                nbt.put_list(
+                    "Pos",
+                    vec![
+                        (f64::from(pos.x) + 0.5).into(),
+                        f64::from(pos.y).into(),
+                        (f64::from(pos.z) + 0.5).into(),
+                    ],
+                );
+                nbt.put_bool("PersistenceRequired", true);
+                nbt.put_string("variant", "minecraft:all_black".to_string());
+                chunk.add_structure_entity(nbt);
+            }
+        }
+    }
 }
 
 impl StructurePieceBase for SwampHutPiece {
     fn as_any(&self) -> &dyn std::any::Any {
         self
     }
+
     #[allow(clippy::too_many_lines)]
     fn place(
         &mut self,
         chunk: &mut ProtoChunk,
-        _block_registry: &dyn crate::world::WorldPortalExt,
+        block_registry: &dyn WorldPortalExt,
         _random: &mut RandomGenerator,
         _seed: i64,
         chunk_box: &BlockBox,
@@ -210,20 +275,60 @@ impl StructurePieceBase for SwampHutPiece {
         p.add_block(chunk, oak_fence, 1, 2, 1, &box_limit);
         p.add_block(chunk, oak_fence, 5, 2, 1, &box_limit);
 
-        // let stairs_n = Block::SPRUCE_STAIRS.default_state.with("facing", "north");
+        let stairs_n = Self::spruce_stairs(HorizontalFacing::North, StairsShape::Straight);
-        // let stairs_e = Block::SPRUCE_STAIRS.default_state.with("facing", "east");
+        let stairs_e = Self::spruce_stairs(HorizontalFacing::East, StairsShape::Straight);
-        // let stairs_w = Block::SPRUCE_STAIRS.default_state.with("facing", "west");
+        let stairs_w = Self::spruce_stairs(HorizontalFacing::West, StairsShape::Straight);
-        // let stairs_s = Block::SPRUCE_STAIRS.default_state.with("facing", "south");
+        let stairs_s = Self::spruce_stairs(HorizontalFacing::South, StairsShape::Straight);
 
-        // p.fill_with_outline(chunk, &box_limit, false, 0, 4, 1, 6, 4, 1, &stairs_n, &stairs_n);
+        p.fill_with_outline(
-        // p.fill_with_outline(chunk, &box_limit, false, 0, 4, 2, 0, 4, 7, &stairs_e, &stairs_e);
+            chunk, &box_limit, false, 0, 4, 1, 6, 4, 1, stairs_n, stairs_n,
-        // p.fill_with_outline(chunk, &box_limit, false, 6, 4, 2, 6, 4, 7, &stairs_w, &stairs_w);
+        );
-        // p.fill_with_outline(chunk, &box_limit, false, 0, 4, 8, 6, 4, 8, &stairs_s, &stairs_s);
+        p.fill_with_outline(
+            chunk, &box_limit, false, 0, 4, 2, 0, 4, 7, stairs_e, stairs_e,
+        );
+        p.fill_with_outline(
+            chunk, &box_limit, false, 6, 4, 2, 6, 4, 7, stairs_w, stairs_w,
+        );
+        p.fill_with_outline(
+            chunk, &box_limit, false, 0, 4, 8, 6, 4, 8, stairs_s, stairs_s,
+        );
 
-        // p.add_block(chunk, &stairs_n.with("shape", "outer_right"), 0, 4, 1, &box_limit);
+        p.place_block(
-        // p.add_block(chunk, &stairs_n.with("shape", "outer_left"), 6, 4, 1, &box_limit);
+            chunk,
-        // p.add_block(chunk, &stairs_s.with("shape", "outer_left"), 0, 4, 8, &box_limit);
+            block_registry,
-        // p.add_block(chunk, &stairs_s.with("shape", "outer_right"), 6, 4, 8, &box_limit);
+            Self::spruce_stairs(HorizontalFacing::North, StairsShape::OuterRight),
+            0,
+            4,
+            1,
+            &box_limit,
+        );
+        p.place_block(
+            chunk,
+            block_registry,
+            Self::spruce_stairs(HorizontalFacing::North, StairsShape::OuterLeft),
+            6,
+            4,
+            1,
+            &box_limit,
+        );
+        p.place_block(
+            chunk,
+            block_registry,
+            Self::spruce_stairs(HorizontalFacing::South, StairsShape::OuterLeft),
+            0,
+            4,
+            8,
+            &box_limit,
+        );
+        p.place_block(
+            chunk,
+            block_registry,
+            Self::spruce_stairs(HorizontalFacing::South, StairsShape::OuterRight),
+            6,
+            4,
+            8,
+            &box_limit,
+        );
 
         for i in [2, 7] {
             for j in [1, 5] {
@@ -231,15 +336,10 @@ impl StructurePieceBase for SwampHutPiece {
             }
         }
 
-        // if !self.has_witch {
+        self.spawn_witch(chunk, &box_limit);
-        //     let world_coords = p.get_world_coords(2, 2, 5);
+        self.spawn_cat(chunk, &box_limit);
-        //     if box_limit.contains(world_coords.0, world_coords.1, world_coords.2) {
-        //         self.has_witch = true;
-        //         // TODO: chunk.add_entity(Witch, world_coords)
-        //     }
-        // }
-        // TODO: self.spawn_cat(chunk, &box_limit);
     }
+
     fn get_structure_piece(&self) -> &super::StructurePiece {
         &self.shiftable_structure_piece.piece
     }

crates/pumpkin-world/src/generation/structure/template/processor.rs

@@ -232,7 +232,7 @@ impl PosRuleTest {
                 let dist = dx + dy + dz;
                 let chance =
                     calculate_linear_chance(dist, *min_dist, *max_dist, *min_chance, *max_chance);
-                rng.next_f32() < chance
+                rng.next_f32() <= chance
             }
             Self::AxisAlignedLinearPos {
                 axis,
@@ -248,7 +248,7 @@ impl PosRuleTest {
                 };
                 let chance =
                     calculate_linear_chance(dist, *min_dist, *max_dist, *min_chance, *max_chance);
-                rng.next_f32() < chance
+                rng.next_f32() <= chance
             }
         }
     }
@@ -526,6 +526,19 @@ fn replace_preserving_properties(
         })
 }
 
+fn get_random_facing_stairs(
+    rng: &mut impl RandomImpl,
+    stair_block: &'static Block,
+) -> &'static BlockState {
+    let facings = ["north", "south", "east", "west"];
+    let halves = ["bottom", "top"];
+    let facing = facings[rng.next_bounded_i32(4) as usize];
+    let half = halves[rng.next_bounded_i32(2) as usize];
+    let props = [("facing", facing), ("half", half)];
+    let state_id = stair_block.from_properties(&props).to_state_id(stair_block);
+    BlockState::from_id(state_id)
+}
+
 fn process_block_age(
     state: &'static BlockState,
     mossiness: f32,
@@ -537,45 +550,50 @@ fn process_block_age(
         block_id,
         BlockId::STONE_BRICKS
             | BlockId::STONE
-            | BlockId::CRACKED_STONE_BRICKS
             | BlockId::CHISELED_STONE_BRICKS
             | BlockId::INFESTED_STONE
             | BlockId::INFESTED_STONE_BRICKS
-            | BlockId::INFESTED_CRACKED_STONE_BRICKS
             | BlockId::INFESTED_CHISELED_STONE_BRICKS
     ) {
         if rng.next_f32() < 0.5 {
+            let non_mossy = [
+                Block::CRACKED_STONE_BRICKS.default_state,
+                get_random_facing_stairs(rng, &Block::STONE_BRICK_STAIRS),
+            ];
+            let mossy = [
+                Block::MOSSY_STONE_BRICKS.default_state,
+                get_random_facing_stairs(rng, &Block::MOSSY_STONE_BRICK_STAIRS),
+            ];
+            let idx = rng.next_bounded_i32(2) as usize;
             if rng.next_f32() < mossiness {
-                return Block::MOSSY_STONE_BRICKS.default_state;
+                return mossy[idx];
             }
-            return Block::CRACKED_STONE_BRICKS.default_state;
+            return non_mossy[idx];
         }
-    } else if block_id == BlockId::STONE_BRICK_STAIRS
+    } else if check_block_has_tag(block_id, "stairs") {
-        || block_id == BlockId::INFESTED_MOSSY_STONE_BRICKS
+        if rng.next_f32() < 0.5 {
-    {
+            let non_mossy = [
-        if rng.next_f32() < 0.5 && rng.next_f32() < mossiness {
+                Block::STONE_SLAB.default_state,
-            return replace_preserving_properties(state, &Block::MOSSY_STONE_BRICK_STAIRS);
+                Block::STONE_BRICK_SLAB.default_state,
+            ];
+            let mossy = [
+                replace_preserving_properties(state, &Block::MOSSY_STONE_BRICK_STAIRS),
+                Block::MOSSY_STONE_BRICK_SLAB.default_state,
+            ];
+            let idx = rng.next_bounded_i32(2) as usize;
+            if rng.next_f32() < mossiness {
+                return mossy[idx];
+            }
+            return non_mossy[idx];
         }
-    } else if block_id == BlockId::STONE_BRICK_SLAB {
+    } else if check_block_has_tag(block_id, "slabs") {
-        if rng.next_f32() < 0.5 && rng.next_f32() < mossiness {
+        if rng.next_f32() < mossiness {
             return replace_preserving_properties(state, &Block::MOSSY_STONE_BRICK_SLAB);
         }
-    } else if block_id == BlockId::STONE_BRICK_WALL {
+    } else if check_block_has_tag(block_id, "walls") {
-        if rng.next_f32() < 0.5 && rng.next_f32() < mossiness {
+        if rng.next_f32() < mossiness {
             return replace_preserving_properties(state, &Block::MOSSY_STONE_BRICK_WALL);
         }
-    } else if block_id == BlockId::COBBLESTONE_STAIRS {
-        if rng.next_f32() < 0.5 && rng.next_f32() < mossiness {
-            return replace_preserving_properties(state, &Block::MOSSY_COBBLESTONE_STAIRS);
-        }
-    } else if block_id == BlockId::COBBLESTONE_SLAB {
-        if rng.next_f32() < 0.5 && rng.next_f32() < mossiness {
-            return replace_preserving_properties(state, &Block::MOSSY_COBBLESTONE_SLAB);
-        }
-    } else if block_id == BlockId::COBBLESTONE_WALL {
-        if rng.next_f32() < 0.5 && rng.next_f32() < mossiness {
-            return replace_preserving_properties(state, &Block::MOSSY_COBBLESTONE_WALL);
-        }
     } else if block_id == BlockId::OBSIDIAN && rng.next_f32() < 0.15 {
         return Block::CRYING_OBSIDIAN.default_state;
     }

tools/pumpkin-codegen/src/configured_feature.rs

@@ -372,9 +372,21 @@ pub fn value_to_configured_feature(v: &Value) -> TokenStream {
         }
         "minecraft:fallen_tree" => {
             let trunk = value_to_block_state_provider(&config["trunk_provider"]);
+            let log_length = value_to_int_provider(&config["log_length"]);
+            let stump_decorators: Vec<TokenStream> = config["stump_decorators"]
+                .as_array()
+                .map(|arr| arr.iter().map(value_to_tree_decorator).collect())
+                .unwrap_or_default();
+            let log_decorators: Vec<TokenStream> = config["log_decorators"]
+                .as_array()
+                .map(|arr| arr.iter().map(value_to_tree_decorator).collect())
+                .unwrap_or_default();
             quote! {
                 ConfiguredFeature::FallenTree(FallenTreeFeature {
                     trunk_provider: #trunk,
+                    log_length: #log_length,
+                    stump_decorators: vec![#(#stump_decorators),*],
+                    log_decorators: vec![#(#log_decorators),*],
                 })
             }
         }
@@ -810,7 +822,42 @@ pub fn value_to_configured_feature(v: &Value) -> TokenStream {
             }
         }
         "minecraft:multiface_growth" => {
-            quote! { ConfiguredFeature::MultifaceGrowth(crate::generation::feature::features::multiface_growth::MultifaceGrowthFeature {}) }
+            let block_name = config["block"].as_str().unwrap_or("minecraft:glow_lichen");
+            let stripped = block_name.strip_prefix("minecraft:").unwrap_or(block_name);
+            let block_ident =
+                quote::format_ident!("{}", stripped.to_uppercase().replace([':', '-'], "_"));
+            let search_range = config["search_range"].as_i64().unwrap_or(10) as i32;
+            let can_place_on_floor = config["can_place_on_floor"].as_bool().unwrap_or(false);
+            let can_place_on_ceiling = config["can_place_on_ceiling"].as_bool().unwrap_or(false);
+            let can_place_on_wall = config["can_place_on_wall"].as_bool().unwrap_or(false);
+            let chance_of_spreading = config["chance_of_spreading"].as_f64().unwrap_or(0.5) as f32;
+            let can_be_placed_on: Vec<TokenStream> = config["can_be_placed_on"]
+                .as_array()
+                .map(|arr| {
+                    arr.iter()
+                        .filter_map(|v| v.as_str())
+                        .map(|name| {
+                            let stripped = name.strip_prefix("minecraft:").unwrap_or(name);
+                            let ident = quote::format_ident!(
+                                "{}",
+                                stripped.to_uppercase().replace([':', '-'], "_")
+                            );
+                            quote! { pumpkin_data::BlockId::#ident }
+                        })
+                        .collect()
+                })
+                .unwrap_or_default();
+            quote! {
+                ConfiguredFeature::MultifaceGrowth(crate::generation::feature::features::multiface_growth::MultifaceGrowthFeature {
+                    place_block: pumpkin_data::BlockId::#block_ident,
+                    search_range: #search_range,
+                    can_place_on_floor: #can_place_on_floor,
+                    can_place_on_ceiling: #can_place_on_ceiling,
+                    can_place_on_wall: #can_place_on_wall,
+                    chance_of_spreading: #chance_of_spreading,
+                    can_be_placed_on: vec![#(#can_be_placed_on),*],
+                })
+            }
         }
         "minecraft:blue_ice" => {
             quote! { ConfiguredFeature::BlueIce(crate::generation::feature::features::blue_ice::BlueIceFeature {}) }
@@ -842,7 +889,22 @@ pub fn value_to_configured_feature(v: &Value) -> TokenStream {
             quote! { ConfiguredFeature::CoralClaw(crate::generation::feature::features::coral::coral_claw::CoralClawFeature) }
         }
         "minecraft:huge_fungus" => {
-            quote! { ConfiguredFeature::HugeFungus(crate::generation::feature::features::huge_fungus::HugeFungusFeature {}) }
+            let valid_base_block = value_to_block_state(&config["valid_base_block"]);
+            let stem_state = value_to_block_state(&config["stem_state"]);
+            let hat_state = value_to_block_state(&config["hat_state"]);
+            let decor_state = value_to_block_state(&config["decor_state"]);
+            let replaceable_blocks = value_to_block_predicate(&config["replaceable_blocks"]);
+            let planted = config["planted"].as_bool().unwrap_or(false);
+            quote! {
+                ConfiguredFeature::HugeFungus(crate::generation::feature::features::huge_fungus::HugeFungusFeature {
+                    valid_base_block: #valid_base_block,
+                    stem_state: #stem_state,
+                    hat_state: #hat_state,
+                    decor_state: #decor_state,
+                    replaceable_blocks: #replaceable_blocks,
+                    planted: #planted,
+                })
+            }
         }
         "minecraft:weeping_vines" => {
             quote! { ConfiguredFeature::WeepingVines(crate::generation::feature::features::weeping_vines::WeepingVinesFeature {}) }
@@ -860,10 +922,28 @@ pub fn value_to_configured_feature(v: &Value) -> TokenStream {
             }
         }
         "minecraft:delta_feature" => {
-            quote! { ConfiguredFeature::DeltaFeature(crate::generation::feature::features::delta_feature::DeltaFeatureFeature {}) }
+            let contents = value_to_block_state(&config["contents"]);
+            let rim = value_to_block_state(&config["rim"]);
+            let size = value_to_int_provider(&config["size"]);
+            let rim_size = value_to_int_provider(&config["rim_size"]);
+            quote! {
+                ConfiguredFeature::DeltaFeature(crate::generation::feature::features::delta_feature::DeltaFeatureFeature {
+                    contents: #contents,
+                    rim: #rim,
+                    size: #size,
+                    rim_size: #rim_size,
+                })
+            }
         }
         "minecraft:fill_layer" => {
-            quote! { ConfiguredFeature::FillLayer(crate::generation::feature::features::fill_layer::FillLayerFeature {}) }
+            let height = config["height"].as_i64().unwrap_or(0) as i32;
+            let state = value_to_block_state(&config["state"]);
+            quote! {
+                ConfiguredFeature::FillLayer(crate::generation::feature::features::fill_layer::FillLayerFeature {
+                    height: #height,
+                    state: #state,
+                })
+            }
         }
         "minecraft:bonus_chest" => {
             quote! { ConfiguredFeature::BonusChest(crate::generation::feature::features::bonus_chest::BonusChestFeature {}) }
@@ -898,10 +978,31 @@ pub fn value_to_configured_feature(v: &Value) -> TokenStream {
             }
         }
         "minecraft:block_pile" => {
-            quote! { ConfiguredFeature::BlockPile(crate::generation::feature::features::block_pile::BlockPileFeature {}) }
+            let provider = value_to_block_state_provider(&config["state_provider"]);
+            quote! {
+                ConfiguredFeature::BlockPile(crate::generation::feature::features::block_pile::BlockPileFeature {
+                    state_provider: #provider,
+                })
+            }
         }
         "minecraft:replace_single_block" => {
-            quote! { ConfiguredFeature::ReplaceSingleBlock(crate::generation::feature::features::replace_single_block::ReplaceSingleBlockFeature {}) }
+            let targets: Vec<TokenStream> = config["targets"]
+                .as_array()
+                .map(|arr| {
+                    arr.iter()
+                        .map(|t| {
+                            let rule = value_to_rule_test(&t["target"]);
+                            let state = value_to_block_state(&t["state"]);
+                            quote! { OreTarget { target: #rule, state: #state } }
+                        })
+                        .collect()
+                })
+                .unwrap_or_default();
+            quote! {
+                ConfiguredFeature::ReplaceSingleBlock(crate::generation::feature::features::replace_single_block::ReplaceSingleBlockFeature {
+                    targets: vec![#(#targets),*],
+                })
+            }
         }
         "minecraft:void_start_platform" => {
             quote! { ConfiguredFeature::VoidStartPlatform(crate::generation::feature::features::void_start_platform::VoidStartPlatformFeature {}) }
@@ -1506,13 +1607,17 @@ fn value_to_tree_decorator(v: &Value) -> TokenStream {
             let prob = v["probability"].as_f64().unwrap_or(0.0) as f32;
             quote! { TreeDecorator::LeaveVine(LeavesVineTreeDecorator { probability: #prob }) }
         }
-        "minecraft:cocoa" => quote! { TreeDecorator::Cocoa(CocoaTreeDecorator {}) },
+        "minecraft:cocoa" => {
+            let prob = v["probability"].as_f64().unwrap_or(0.0) as f32;
+            quote! { TreeDecorator::Cocoa(CocoaTreeDecorator { probability: #prob }) }
+        }
         "minecraft:beehive" => {
             let prob = v["probability"].as_f64().unwrap_or(0.0) as f32;
             quote! { TreeDecorator::Beehive(BeehiveTreeDecorator { probability: #prob }) }
         }
         "minecraft:alter_ground" => {
-            quote! { TreeDecorator::AlterGround(AlterGroundTreeDecorator {}) }
+            let provider = value_to_block_state_provider(&v["provider"]);
+            quote! { TreeDecorator::AlterGround(AlterGroundTreeDecorator { provider: #provider }) }
         }
         "minecraft:attached_to_logs" => {
             let prob = v["probability"].as_f64().unwrap_or(0.0) as f32;
@@ -1534,7 +1639,29 @@ fn value_to_tree_decorator(v: &Value) -> TokenStream {
             }
         }
         "minecraft:attached_to_leaves" => {
-            quote! { TreeDecorator::AttachedToLeaves(AttachedToLeavesTreeDecorator {}) }
+            let prob = v["probability"].as_f64().unwrap_or(0.0) as f32;
+            let exclusion_radius_xz = v["exclusion_radius_xz"].as_i64().unwrap_or(0) as i32;
+            let exclusion_radius_y = v["exclusion_radius_y"].as_i64().unwrap_or(0) as i32;
+            let bp = value_to_block_state_provider(&v["block_provider"]);
+            let required_empty_blocks = v["required_empty_blocks"].as_i64().unwrap_or(1) as i32;
+            let dirs: Vec<TokenStream> = v["directions"]
+                .as_array()
+                .map(|arr| {
+                    arr.iter()
+                        .filter_map(|d| d.as_str().map(value_to_block_direction))
+                        .collect()
+                })
+                .unwrap_or_default();
+            quote! {
+                TreeDecorator::AttachedToLeaves(AttachedToLeavesTreeDecorator {
+                    probability: #prob,
+                    exclusion_radius_xz: #exclusion_radius_xz,
+                    exclusion_radius_y: #exclusion_radius_y,
+                    block_provider: #bp,
+                    required_empty_blocks: #required_empty_blocks,
+                    directions: vec![#(#dirs),*],
+                })
+            }
         }
         "minecraft:place_on_ground" => {
             let tries = v["tries"].as_i64().unwrap_or(1) as i32;
@@ -1551,10 +1678,20 @@ fn value_to_tree_decorator(v: &Value) -> TokenStream {
             }
         }
         "minecraft:creaking_heart" => {
-            quote! { TreeDecorator::CreakingHeart(CreakingHeartTreeDecorator {}) }
+            let prob = v["probability"].as_f64().unwrap_or(0.0) as f32;
+            quote! { TreeDecorator::CreakingHeart(CreakingHeartTreeDecorator { probability: #prob }) }
         }
         "minecraft:pale_moss" => {
-            quote! { TreeDecorator::PaleMoss(PaleMossTreeDecorator {}) }
+            let leaves_probability = v["leaves_probability"].as_f64().unwrap_or(0.0) as f32;
+            let trunk_probability = v["trunk_probability"].as_f64().unwrap_or(0.0) as f32;
+            let ground_probability = v["ground_probability"].as_f64().unwrap_or(0.0) as f32;
+            quote! {
+                TreeDecorator::PaleMoss(PaleMossTreeDecorator {
+                    leaves_probability: #leaves_probability,
+                    trunk_probability: #trunk_probability,
+                    ground_probability: #ground_probability,
+                })
+            }
         }
         other => {
             let msg = format!("unknown tree decorator: {other}");