121 lines
4.0 KiB
Rust
121 lines
4.0 KiB
Rust
use std::sync::Arc;
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use crate::block::BlockBehaviour;
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use crate::block::CanPlaceAtArgs;
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use crate::block::GetStateForNeighborUpdateArgs;
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use crate::block::OnPlaceArgs;
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use crate::block::OnScheduledTickArgs;
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use crate::block::RandomTickArgs;
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use crate::world::World;
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use pumpkin_data::Block;
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use pumpkin_data::BlockDirection;
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use pumpkin_data::BlockStateId;
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use pumpkin_data::block_properties::FarmlandLikeProperties;
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use pumpkin_data::tag;
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use pumpkin_data::tag::Taggable;
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use pumpkin_macros::pumpkin_block;
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use pumpkin_util::math::position::BlockPos;
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use pumpkin_util::math::vector3::Vector3;
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use pumpkin_world::tick::TickPriority;
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use pumpkin_world::world::BlockAccessor;
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use pumpkin_world::world::BlockFlags;
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type FarmlandProperties = FarmlandLikeProperties;
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#[pumpkin_block("minecraft:farmland")]
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pub struct FarmlandBlock;
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impl BlockBehaviour for FarmlandBlock {
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fn on_scheduled_tick(&self, args: OnScheduledTickArgs<'_>) {
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// TODO: push up entities
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args.world.set_block_state(
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args.position,
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Block::DIRT.default_state.id,
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BlockFlags::NOTIFY_ALL,
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);
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}
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fn on_place(&self, args: OnPlaceArgs<'_>) -> BlockStateId {
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if !can_place_at(args.world, args.position) {
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return Block::DIRT.default_state.id;
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}
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args.block.default_state.id
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}
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fn get_state_for_neighbor_update(
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&self,
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args: GetStateForNeighborUpdateArgs<'_>,
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) -> BlockStateId {
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if args.direction == BlockDirection::Up && !can_place_at(args.world, args.position) {
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args.world
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.schedule_block_tick(args.block, *args.position, 1, TickPriority::Normal);
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}
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args.state_id
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}
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fn can_place_at(&self, args: CanPlaceAtArgs<'_>) -> bool {
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can_place_at(args.block_accessor, args.position)
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}
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fn random_tick(&self, args: RandomTickArgs<'_>) {
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// TODO: add rain check. Remember to check which one is most optimized.
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if is_water_nearby(args.world, args.position) {
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let mut props = FarmlandProperties::default(args.block);
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props.moisture = 7;
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args.world.set_block_state(
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args.position,
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props.to_state_id(args.block),
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BlockFlags::NOTIFY_NEIGHBORS,
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);
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} else {
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let state_id = args.world.get_block_state_id(args.position);
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let mut props = FarmlandProperties::from_state_id(state_id);
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if props.moisture == 0 {
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if !args
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.world
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.get_block(&args.position.up())
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.has_tag(&tag::Block::MINECRAFT_MAINTAINS_FARMLAND)
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{
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//TODO push entities up
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args.world.set_block_state(
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args.position,
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Block::DIRT.default_state.id,
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BlockFlags::NOTIFY_NEIGHBORS,
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);
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}
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} else {
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props.moisture = (props.moisture as i32 - 1).clamp(0, 7) as u8;
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args.world.set_block_state(
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args.position,
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props.to_state_id(args.block),
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BlockFlags::NOTIFY_NEIGHBORS,
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);
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}
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}
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}
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}
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fn can_place_at(world: &dyn BlockAccessor, block_pos: &BlockPos) -> bool {
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let state = world.get_block_state(&block_pos.up());
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!state.is_solid() // TODO: add fence gate block
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}
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fn is_water_nearby(world: &Arc<World>, block_pos: &BlockPos) -> bool {
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for dx in -4..=4 {
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for dy in 0..=1 {
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for dz in -4..=4 {
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let check_pos = block_pos.offset(Vector3 {
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x: dx,
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y: dy,
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z: dz,
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});
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//TODO this should use tag water. It does not seem to work rn.
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if world.get_block(&check_pos) == &Block::WATER {
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return true;
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}
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}
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}
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}
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false
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}
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