Minor Chunk gen speed gains

README.md

@@ -5,7 +5,7 @@
 ![CI](https://github.com/Snowiiii/Pumpkin/actions/workflows/rust.yml/badge.svg)
 [![Discord](https://img.shields.io/discord/1268592337445978193.svg?label=&logo=discord&logoColor=ffffff&color=7389D8&labelColor=6A7EC2)](https://discord.gg/wT8XjrjKkf)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
-![Current version)](https://img.shields.io/badge/current_version-1.21.7-blue)
+![Current version)](https://img.shields.io/badge/current_version-1.21.8-blue)
 
 
 </div>

pumpkin-world/src/chunk/mod.rs

@@ -94,7 +94,7 @@ pub struct ChunkEntityData {
 #[derive(Debug, Clone)]
 pub struct ChunkSections {
     pub sections: Box<[SubChunk]>,
-    min_y: i32,
+    pub min_y: i32,
 }
 
 impl ChunkSections {
@@ -179,18 +179,19 @@ impl ChunkSections {
         }
     }
 
+    /// Returns the replaced block state ID
     pub fn set_block_absolute_y(
         &mut self,
         relative_x: usize,
         y: i32,
         relative_z: usize,
         block_state: BlockStateId,
-    ) {
+    ) -> BlockStateId {
         let y = y - self.min_y;
         debug_assert!(y >= 0);
         let relative_y = y as usize;
 
-        self.set_relative_block(relative_x, relative_y, relative_z, block_state);
+        self.set_relative_block(relative_x, relative_y, relative_z, block_state)
     }
 
     /// Gets the given block in the chunk
@@ -210,7 +211,7 @@ impl ChunkSections {
             .map(|section| section.block_states.get(relative_x, relative_y, relative_z))
     }
 
-    /// Sets the given block in the chunk, returning the old block
+    /// Sets the given block in the chunk, returning the old block state ID
     #[inline]
     pub fn set_relative_block(
         &mut self,
@@ -218,9 +219,9 @@ impl ChunkSections {
         relative_y: usize,
         relative_z: usize,
         block_state_id: BlockStateId,
-    ) {
+    ) -> BlockStateId {
         // TODO @LUK_ESC? update the heightmap
-        self.set_block_no_heightmap_update(relative_x, relative_y, relative_z, block_state_id);
+        self.set_block_no_heightmap_update(relative_x, relative_y, relative_z, block_state_id)
     }
 
     /// Sets the given block in the chunk, returning the old block
@@ -234,20 +235,20 @@ impl ChunkSections {
         relative_y: usize,
         relative_z: usize,
         block_state_id: BlockStateId,
-    ) {
+    ) -> BlockStateId {
         debug_assert!(relative_x < BlockPalette::SIZE);
         debug_assert!(relative_z < BlockPalette::SIZE);
 
         let section_index = relative_y / BlockPalette::SIZE;
         let relative_y = relative_y % BlockPalette::SIZE;
         if let Some(section) = self.sections.get_mut(section_index) {
-            section
+            return section
                 .block_states
                 .set(relative_x, relative_y, relative_z, block_state_id);
         }
+        0
     }
 
-    /// Sets the given block in the chunk, returning the old block
     pub fn set_relative_biome(
         &mut self,
         relative_x: usize,
@@ -260,11 +261,13 @@ impl ChunkSections {
 
         let section_index = relative_y / BiomePalette::SIZE;
         let relative_y = relative_y % BiomePalette::SIZE;
-        self.sections[section_index]
+        if let Some(section) = self.sections.get_mut(section_index) {
+            section
                 .biomes
                 .set(relative_x, relative_y, relative_z, biome_id);
         }
     }
+}
 
 impl ChunkData {
     /// Gets the given block in the chunk

pumpkin-world/src/chunk/palette.rs

@@ -29,7 +29,8 @@ impl<V: Hash + Eq + Copy, const DIM: usize> HeterogeneousPaletteData<V, DIM> {
         self.cube[y][z][x]
     }
 
-    fn set(&mut self, x: usize, y: usize, z: usize, value: V) {
+    /// Returns the Original
+    fn set(&mut self, x: usize, y: usize, z: usize, value: V) -> V {
         debug_assert!(x < DIM);
         debug_assert!(y < DIM);
         debug_assert!(z < DIM);
@@ -48,6 +49,7 @@ impl<V: Hash + Eq + Copy, const DIM: usize> HeterogeneousPaletteData<V, DIM> {
             .entry(value)
             .and_modify(|count| *count += 1)
             .or_insert(1);
+        original
     }
 }
 
@@ -191,24 +193,27 @@ impl<V: Hash + Eq + Copy + Default, const DIM: usize> PalettedContainer<V, DIM>
         }
     }
 
-    pub fn set(&mut self, x: usize, y: usize, z: usize, value: V) {
+    pub fn set(&mut self, x: usize, y: usize, z: usize, value: V) -> V {
         debug_assert!(x < Self::SIZE);
         debug_assert!(y < Self::SIZE);
         debug_assert!(z < Self::SIZE);
 
         match self {
             Self::Homogeneous(original) => {
-                if value != *original {
+                let original = *original;
-                    let mut cube = Box::new([[[*original; DIM]; DIM]; DIM]);
+                if value != original {
+                    let mut cube = Box::new([[[original; DIM]; DIM]; DIM]);
                     cube[y][z][x] = value;
                     *self = Self::from_cube(cube);
                 }
+                original
             }
             Self::Heterogeneous(data) => {
-                data.set(x, y, z, value);
+                let original = data.set(x, y, z, value);
                 if data.counts.len() == 1 {
                     *self = Self::Homogeneous(*data.counts.keys().next().unwrap());
                 }
+                original
             }
         }
     }

pumpkin-world/src/generation/implementation/mod.rs

@@ -90,24 +90,34 @@ impl WorldGenerator for VanillaGenerator {
         proto_chunk.generate_features(level, block_registry);
 
         for y in 0..biome_coords::from_block(generation_settings.shape.height) {
+            let relative_y = y as usize;
+            let section_index = relative_y / BiomePalette::SIZE;
+            let relative_y = relative_y % BiomePalette::SIZE;
+            if let Some(section) = sections.sections.get_mut(section_index) {
                 for z in 0..BiomePalette::SIZE {
                     for x in 0..BiomePalette::SIZE {
                         let absolute_y =
-                        biome_coords::from_block(generation_settings.shape.min_y as i32) + y as i32;
+                            biome_coords::from_block(generation_settings.shape.min_y as i32)
+                                + y as i32;
                         let biome =
                             proto_chunk.get_biome(&Vector3::new(x as i32, absolute_y, z as i32));
-                    sections.set_relative_biome(x, y as usize, z, biome.id);
+                        section.biomes.set(x, relative_y, z, biome.id);
+                    }
                 }
             }
         }
-
         for y in 0..generation_settings.shape.height {
+            let relative_y = (y as i32 - sections.min_y) as usize;
+            let section_index = relative_y / BlockPalette::SIZE;
+            let relative_y = relative_y % BlockPalette::SIZE;
+            if let Some(section) = sections.sections.get_mut(section_index) {
                 for z in 0..BlockPalette::SIZE {
                     for x in 0..BlockPalette::SIZE {
                         let absolute_y = generation_settings.shape.min_y as i32 + y as i32;
-                    let block =
+                        let block = proto_chunk
-                        proto_chunk.get_block_state(&Vector3::new(x as i32, absolute_y, z as i32));
+                            .get_block_state(&Vector3::new(x as i32, absolute_y, z as i32));
-                    sections.set_relative_block(x, y as usize, z, block.0);
+                        section.block_states.set(x, relative_y, z, block.0);
+                    }
                 }
             }
         }

pumpkin-world/src/level.rs

@@ -621,23 +621,15 @@ impl Level {
         let chunk = self.get_chunk(chunk_coordinate).await;
         let mut chunk = chunk.write().await;
 
-        let replaced_block_state_id = chunk
+        let replaced_block_state_id = chunk.section.set_block_absolute_y(
-            .section
-            .get_block_absolute_y(relative.x as usize, relative.y, relative.z as usize)
-            .unwrap();
-
-        if replaced_block_state_id == block_state_id {
-            return block_state_id;
-        }
-
-        chunk.mark_dirty(true);
-
-        chunk.section.set_block_absolute_y(
             relative.x as usize,
             relative.y,
             relative.z as usize,
             block_state_id,
         );
+        if replaced_block_state_id != block_state_id {
+            chunk.mark_dirty(true);
+        }
         replaced_block_state_id
     }
 

pumpkin/src/world/mod.rs

@@ -1836,7 +1836,6 @@ impl World {
     }
 
     /// Sets a block and returns the old block id
-    #[expect(clippy::too_many_lines)]
     pub async fn set_block_state(
         self: &Arc<Self>,
         position: &BlockPos,
@@ -1850,26 +1849,17 @@ impl World {
         else {
             panic!("Timed out while waiting to acquire chunk write lock")
         };
-        let Some(replaced_block_state_id) = chunk.section.get_block_absolute_y(
+        let replaced_block_state_id = chunk.section.set_block_absolute_y(
-            relative.x as usize,
-            relative.y,
-            relative.z as usize,
-        ) else {
-            return block_state_id;
-        };
-
-        if replaced_block_state_id == block_state_id {
-            return block_state_id;
-        }
-
-        chunk.mark_dirty(true);
-
-        chunk.section.set_block_absolute_y(
             relative.x as usize,
             relative.y,
             relative.z as usize,
             block_state_id,
         );
+        if replaced_block_state_id == block_state_id {
+            return block_state_id;
+        }
+        chunk.mark_dirty(true);
+
         self.unsent_block_changes
             .lock()
             .await