voroskoi/pistike - Change RFXUGGUPAFJ7V6BTQZM4SQEAOFLDVWYI5ZIIK6K5EKFDXPPD2ZYQC

Add fileBits() and rankBits() methods to Square

Created by voroskoi on December 19, 2022

RFXUGGUPAFJ7V6BTQZM4SQEAOFLDVWYI5ZIIK6K5EKFDXPPD2ZYQC

Dependencies

In channels

main

Change contents

Insertion in src/main.zig at line 27 [3.50]

[3.613]

    }
    fn fileBits(file: u8) BoardType {
        const offset = file - 'a';
        std.debug.assert(offset < SIZE);
        var ret: BoardType = 0;
        var idx: u6 = 0;
        while (idx < SIZE) : (idx += 1) {
            ret += @as(BoardType, 1) << idx * SIZE + @intCast(u3, offset);
        }
        return ret;

Insertion in src/main.zig at line 42 [3.50]

[3.619]


    fn rankBits(rank: u6) BoardType {
        var ret: BoardType = 0;
        std.debug.assert(rank > 0 and rank <= SIZE);
        var idx: u6 = 0;
        while (idx < SIZE) : (idx += 1) {
            ret += @as(BoardType, 1) << idx + (SIZE - rank) * SIZE;
        }
        return ret;
    }

Replacement in src/main.zig at line 165 [3.50]

B:BD[2.226] → [2.226:327]

fn genPawnAttack() [@typeInfo(Colors).Enum.fields.len][@typeInfo(Square).Enum.fields.len]BoardType {

[2.226]

[2.327]

fn genPawnAttacks() [@typeInfo(Colors).Enum.fields.len][@typeInfo(Square).Enum.fields.len]BoardType {

Deletion in src/main.zig at line 167 [3.50]

B:BD[2.405] → [2.405:602]


    const a_file = blk: {
        var bb: BitBoard = .{};
        var a_set = [_]Square{ .a8, .a7, .a6, .a5, .a4, .a3, .a2, .a1 };
        bb.setSlice(&a_set);
        break :blk bb.board;
    };

Deletion in src/main.zig at line 168 [3.50]

B:BD[2.603] → [2.603:800]

    const h_file = blk: {
        var bb: BitBoard = .{};
        var h_set = [_]Square{ .h8, .h7, .h6, .h5, .h4, .h3, .h2, .h1 };
        bb.setSlice(&h_set);
        break :blk bb.board;
    };

Replacement in src/main.zig at line 176 [3.50]

B:BD[2.1076] → [2.1076:1209]

                    if (bb.board & a_file == 0)
                        ret[@enumToInt(color)][@enumToInt(square)] += bb.board >> 9;

[2.1076]

[2.1209]

                    if (bb.board & Square.fileBits('a') == 0)
                        ret[@enumToInt(color)][@enumToInt(square)] |= bb.board >> 9;

Replacement in src/main.zig at line 179 [3.50]

B:BD[2.1252] → [2.1252:1385]

                    if (bb.board & h_file == 0)
                        ret[@enumToInt(color)][@enumToInt(square)] += bb.board >> 7;

[2.1252]

[2.1385]

                    if (bb.board & Square.fileBits('h') == 0)
                        ret[@enumToInt(color)][@enumToInt(square)] |= bb.board >> 7;

Replacement in src/main.zig at line 184 [3.50]

B:BD[2.1475] → [2.1475:1608]

                    if (bb.board & h_file == 0)
                        ret[@enumToInt(color)][@enumToInt(square)] += bb.board << 9;

[2.1475]

[2.1608]

                    if (bb.board & Square.fileBits('h') == 0)
                        ret[@enumToInt(color)][@enumToInt(square)] |= bb.board << 9;

Replacement in src/main.zig at line 187 [3.50]

B:BD[2.1650] → [2.1650:1783]

                    if (bb.board & a_file == 0)
                        ret[@enumToInt(color)][@enumToInt(square)] += bb.board << 7;

[2.1650]

[2.1783]

                    if (bb.board & Square.fileBits('a') == 0)
                        ret[@enumToInt(color)][@enumToInt(square)] |= bb.board << 7;

Replacement in src/main.zig at line 197 [3.50]

B:BD[2.1852] → [2.1852:1904]

test "PawnAttack" {
    const pa = genPawnAttack();

[2.1852]

[2.1904]

test "PawnAttacks" {
    const pa = genPawnAttacks();