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minedmap/tile_renderer: factor out block_color_at() from render_chunk()

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Also pass in a few more values to prepare for biome smoothing.
This commit is contained in:
Matthias Schiffer 2023-08-03 18:12:56 +02:00
parent 8e848394cd
commit 45171aa26a
Signed by: neocturne
GPG key ID: 16EF3F64CB201D9C
1 changed files with 23 additions and 16 deletions
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39
src/bin/minedmap/tile_renderer.rs
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@ -77,28 +77,35 @@ impl<'a> TileRenderer<'a> {
processed_paths.try_map(|path| Self::load_region(&path))
}
fn render_chunk(image: &mut image::RgbaImage, coords: ChunkCoords, chunk: &ProcessedChunk) {
fn block_color_at(
_region_group: &RegionGroup<ProcessedRegion>,
chunk: &ProcessedChunk,
_chunk_coords: ChunkCoords,
block_coords: LayerBlockCoords,
) -> Option<[u8; 4]> {
let block = chunk.blocks[block_coords]?;
let depth = chunk.depths[block_coords]?;
let biome = chunk.biomes[block_coords].as_ref()?;
Some(block_color(block, biome, depth.0 as f32))
}
fn render_chunk(
image: &mut image::RgbaImage,
region_group: &RegionGroup<ProcessedRegion>,
chunk: &ProcessedChunk,
chunk_coords: ChunkCoords,
) {
const N: u32 = BLOCKS_PER_CHUNK as u32;
let chunk_image = image::RgbaImage::from_fn(N, N, |x, z| {
let coords = LayerBlockCoords {
let block_coords = LayerBlockCoords {
x: BlockX::new(x),
z: BlockZ::new(z),
};
image::Rgba(
match (
&chunk.blocks[coords],
&chunk.biomes[coords],
&chunk.depths[coords],
) {
(Some(block), Some(biome), Some(depth)) => {
block_color(*block, biome, depth.0 as f32)
}
_ => [0, 0, 0, 0],
},
)
let color = Self::block_color_at(region_group, chunk, chunk_coords, block_coords);
image::Rgba(color.unwrap_or_default())
});
overlay_chunk(image, &chunk_image, coords);
overlay_chunk(image, &chunk_image, chunk_coords);
}
fn render_region(image: &mut image::RgbaImage, region_group: &RegionGroup<ProcessedRegion>) {
@ -107,7 +114,7 @@ impl<'a> TileRenderer<'a> {
continue;
};
Self::render_chunk(image, coords, chunk);
Self::render_chunk(image, region_group, chunk, coords);
}
}