Function get_plane

src/cache.rs:525–540

(data: &[u8], offset: i32, length: u16, magic_rlew_word: &[u8; 2])

}

fn get_plane(data: &[u8], offset: i32, length: u16, magic_rlew_word: &[u8; 2]) -> [[u16; 64]; 64] {
    let plane_start = offset as usize;
    let plane_end = plane_start + length as usize;
    let decarmackized = carmack_decompress(&data[plane_start..plane_end]);
    let bytes = rlew_decompress(&decarmackized[4..], magic_rlew_word);
    let mut bytes = bytes
        .chunks_exact(2)
        .map(|word| u16::from_le_bytes(word.try_into().unwrap()));
    let mut result = [[0; MAP_HEIGHT]; MAP_WIDTH];
    for y in 0..MAP_HEIGHT {
        for x in result.iter_mut().take(MAP_WIDTH) {
            x[y] = bytes.next().unwrap();
        }
    }
    result
}

fn parse_map_data<P: AsRef<Path>>(path: P, meta: MapHead) -> Vec<Map> {
    let raw_data = fs::read(path).expect("could not read GAMEMAPS file");