Add 'Square::index'

This commit is contained in:
Bruno BELANYI 2022-07-17 21:30:23 +02:00
parent 61e7a4e8d1
commit 17b8ee5eb3

View file

@ -60,6 +60,12 @@ impl Square {
std::mem::transmute(index as u8)
}
/// Return the index of a given [Square].
#[inline(always)]
pub fn index(self) -> usize {
self as usize
}
/// Return the index of the rank of this square (0 -> rank 1, ..., 7 -> rank 8).
#[inline(always)]
pub fn rank_index(self) -> usize {
@ -188,6 +194,14 @@ mod test {
assert_eq!(Square::new(File::H, Rank::Eighth), Square::H8);
}
#[test]
fn index() {
assert_eq!(Square::A1.index(), 0);
assert_eq!(Square::A2.index(), 1);
assert_eq!(Square::B1.index(), 8);
assert_eq!(Square::H8.index(), 63);
}
#[test]
fn file() {
assert_eq!(Square::A1.file(), File::A);