INNER CODE UNIT · Rust
atlas
elringus/sprite-dicing · crates/abi/src/lib.rs:331
let atlas = unsafe { &*result.atlases };
let count = pixel_count(atlas.width, atlas.height);
let atlas_pixels = unsafe { to_slice(atlas.pixels, count) }.unwrap();
assert!(atlas_pixels.contains(&RED));
assert!(atlas_pixels.contains(&BLUE));
let sprite = unsafe { &*result.sprites };
assert_eq!(unsafe { to_str(sprite.id) }, Some("sprite"));
assert_eq!(sprite.atlas_index, 0);
assert!(sprite.vertex_count > 0 && sprite.vertex_count % 4 == 0);
assert_eq!(sprite.index_count, sprite.vertex_count / 4 * 6);
let indices = unsafe { to_slice(sprite.indices, sprite.index_count) }.unwrap();
assert!(indices.iter().all(|i| (*i as usize) < sprite.vertex_count));
let uvs = unsafe { to_slice(sprite.uvs, sprite.vertex_count) }.unwrap();
assert!(uvs.iter().all(|uv| (0.0..=1.0).contains(&uv.u)));
assert_eq!(sprite.rect.width, 2.0);
assert_eq!(sprite.rect.height, 2.0);
assert_eq!(sprite.pivot, sd_pivot { x: 0.5, y: 0.5 });