steel_core/behavior/blocks/building/
soul_sand_block.rs

1use steel_macros::block_behavior;
2use steel_registry::blocks::BlockRef;
3use steel_registry::entity_type::EntityTypeRef;
4use steel_utils::{BlockPos, BlockStateId};
5
6use crate::{
7    behavior::{BlockBehavior, BlockPlaceContext},
8    entity::ai::path::PathComputationType,
9    world::LevelReader,
10};
11
12/// Soul sand. Mobs will not pathfind through this block.
13#[block_behavior]
14pub struct SoulSandBlock {
15    block: BlockRef,
16}
17
18impl SoulSandBlock {
19    /// Creates a new soul sand block behavior.
20    #[must_use]
21    pub const fn new(block: BlockRef) -> Self {
22        Self { block }
23    }
24}
25
26impl BlockBehavior for SoulSandBlock {
27    fn get_state_for_placement(&self, _context: &BlockPlaceContext<'_>) -> Option<BlockStateId> {
28        Some(self.block.default_state())
29    }
30
31    fn is_valid_spawn(
32        &self,
33        _state: BlockStateId,
34        _world: &dyn LevelReader,
35        _pos: BlockPos,
36        _entity_type: EntityTypeRef,
37    ) -> bool {
38        true
39    }
40
41    fn is_pathfindable(
42        &self,
43        _state: BlockStateId,
44        _computation_type: PathComputationType,
45    ) -> bool {
46        false
47    }
48}
49
50#[cfg(test)]
51mod tests {
52    use steel_registry::init_vanilla_registry;
53    use steel_registry::vanilla_blocks;
54
55    use crate::behavior::block::BlockBehavior;
56    use crate::entity::ai::path::PathComputationType;
57
58    use super::SoulSandBlock;
59
60    #[test]
61    fn is_pathfindable_returns_false_for_all_types() {
62        init_vanilla_registry();
63        let block = SoulSandBlock::new(&vanilla_blocks::SOUL_SAND);
64        let state = vanilla_blocks::SOUL_SAND.default_state();
65
66        assert!(!block.is_pathfindable(state, PathComputationType::Land));
67        assert!(!block.is_pathfindable(state, PathComputationType::Water));
68        assert!(!block.is_pathfindable(state, PathComputationType::Air));
69    }
70}
steel_core/behavior/blocks/building/soul_sand_block.rs

steel_core/behavior/blocks/building/
soul_sand_block.rs
