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[board] Return copies of rank and file bitboards from static lists

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This commit is contained in:
Eryn Wells 2023-12-31 09:26:20 -08:00
parent e30bcb3105
commit 1cc8b4520f
3 changed files with 31 additions and 4 deletions
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25
board/src/bitboard/library.rs Normal file
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// Eryn Wells <eryn@erynwells.me>
use super::BitBoard;
pub(super) const RANKS: [BitBoard; 8] = [
BitBoard(0xFF << 0 * 8),
BitBoard(0xFF << 1 * 8),
BitBoard(0xFF << 2 * 8),
BitBoard(0xFF << 3 * 8),
BitBoard(0xFF << 4 * 8),
BitBoard(0xFF << 5 * 8),
BitBoard(0xFF << 6 * 8),
BitBoard(0xFF << 7 * 8),
];
pub(super) const FILES: [BitBoard; 8] = [
BitBoard(0x0101010101010101 << 0),
BitBoard(0x0101010101010101 << 1),
BitBoard(0x0101010101010101 << 2),
BitBoard(0x0101010101010101 << 3),
BitBoard(0x0101010101010101 << 4),
BitBoard(0x0101010101010101 << 5),
BitBoard(0x0101010101010101 << 6),
BitBoard(0x0101010101010101 << 7),
];