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[bitboard] Implement a Square type; fix all the build issues after adding a mod line to lib.rs

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This commit is contained in:
Eryn Wells 2023-12-20 11:45:12 -08:00
parent d080ddc735
commit ab55a7994c
4 changed files with 175 additions and 22 deletions
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79
bitboard/src/position.rs
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@ -1,17 +1,20 @@
// Eryn Wells <eryn@erynwells.me>
use crate::bitboard::BitBoard;
use std::fmt;
mod color {
const WHITE = 0;
const BLACK = 1;
const WHITE: u8 = 0;
const BLACK: u8 = 1;
}
mod piece {
const PAWN = 0;
const KNIGHT = 1;
const BISHOP = 2;
const ROOK = 3;
const QUEEN = 4;
const KING = 5;
const PAWN: u8 = 0;
const KNIGHT: u8 = 1;
const BISHOP: u8 = 2;
const ROOK: u8 = 3;
const QUEEN: u8 = 4;
const KING: u8 = 5;
}
#[derive(Clone, Debug, Eq, Hash, PartialEq)]
@ -24,10 +27,64 @@ pub struct Position {
}
impl Position {
static fn empty() -> Position {
fn empty() -> Position {
Position {
pieces_per_color = [],
pieces_per_type = [],
pieces_per_color: [BitBoard(0), BitBoard(0)],
pieces_per_type: [
[
BitBoard(0),
BitBoard(0),
BitBoard(0),
BitBoard(0),
BitBoard(0),
BitBoard(0),
],
[
BitBoard(0),
BitBoard(0),
BitBoard(0),
BitBoard(0),
BitBoard(0),
BitBoard(0),
],
],
}
}
/// Return a starting position.
fn starting() -> Position {
let white_pieces = [
BitBoard(0x00FF000000000000),
BitBoard(0x4200000000000000),
BitBoard(0x2400000000000000),
BitBoard(0x8100000000000000),
BitBoard(0x1000000000000000),
BitBoard(0x8000000000000000),
];
let black_pieces = [
BitBoard(0xFF00),
BitBoard(0x0042),
BitBoard(0x0024),
BitBoard(0x0081),
BitBoard(0x0010),
BitBoard(0x0080),
];
Position {
pieces_per_color: [
BitBoard(white_pieces.iter().map(|bb| bb.0).fold(0, |a, b| a | b)),
BitBoard(black_pieces.iter().map(|bb| bb.0).fold(0, |a, b| a | b)),
],
pieces_per_type: [white_pieces, black_pieces],
}
}
fn piece_at_square(&self, sq: &str) {}
}
impl fmt::Display for Position {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "abcdefg")
}
}