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voxel-rs
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Add helper function for grid-world coordinate conversion

This commit is contained in:
Jarrod Doyle 2023-07-03 11:09:27 +01:00
parent b2b4942a59
commit 95788f3795
Signed by: Jayrude
GPG Key ID: 38B57B16E7C0ADF7
1 changed files with 17 additions and 9 deletions
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26
src/voxel/brickmap.rs
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@ -182,15 +182,7 @@ impl BrickmapManager {
// The CPU side World uses different terminology and coordinate system // The CPU side World uses different terminology and coordinate system
// We need to convert between Brickmap and World pos and get the relevant // We need to convert between Brickmap and World pos and get the relevant
// World voxels // World voxels
let chunk_dims = world.get_chunk_dims(); let block = Self::grid_pos_to_world_pos(world, grid_pos);
let chunk_pos = glam::ivec3(
(grid_pos.x / chunk_dims.x) as i32,
(grid_pos.y / chunk_dims.y) as i32,
(grid_pos.z / chunk_dims.z) as i32,
);
let block_pos = grid_pos % chunk_dims;
let block = world.get_block(chunk_pos, block_pos);
assert_eq!(block.len(), 512);
// The World gives us the full voxel data for the requested block of voxels. // The World gives us the full voxel data for the requested block of voxels.
// For Brickmap raytracing we only care about the visible surface voxels, so // For Brickmap raytracing we only care about the visible surface voxels, so
@ -348,6 +340,22 @@ impl BrickmapManager {
fn to_brickgrid_element(brickmap_cache_idx: u32, flags: BrickgridFlag) -> u32 { fn to_brickgrid_element(brickmap_cache_idx: u32, flags: BrickgridFlag) -> u32 {
(brickmap_cache_idx << 8) + flags as u32 (brickmap_cache_idx << 8) + flags as u32
} }
fn grid_pos_to_world_pos(
world: &mut super::world::WorldManager,
grid_pos: glam::UVec3,
) -> Vec<super::world::Voxel> {
let chunk_dims = world.get_chunk_dims();
let chunk_pos = glam::ivec3(
(grid_pos.x / chunk_dims.x) as i32,
(grid_pos.y / chunk_dims.y) as i32,
(grid_pos.z / chunk_dims.z) as i32,
);
let block_pos = grid_pos % chunk_dims;
let block = world.get_block(chunk_pos, block_pos);
assert_eq!(block.len(), 512);
block
}
} }
#[derive(Debug)] #[derive(Debug)]