Move block_color() to new module

src/resource/block_color.rs

@@ -0,0 +1,10 @@
+use super::{Biome, BlockType};
+
+pub fn block_color(block: BlockType, _biome: &Biome, depth: f32) -> [u8; 4] {
+	let h = 0.5 + 0.005 * depth;
+	let c = block
+		.color
+		.0
+		.map(|v| (f32::from(v) * h).clamp(0.0, 255.0) as u8);
+	[c[0], c[1], c[2], 255]
+}

src/resource/mod.rs

@@ -1,4 +1,5 @@
 mod biomes;
+mod block_color;
 mod block_types;
 mod legacy_block_types;
 
@@ -90,6 +91,7 @@ impl BlockTypes {
 }
 
 pub use biomes::Biome;
+pub use block_color::block_color;
 
 #[derive(Debug)]
 pub struct BiomeTypes {