gearsco.de
A chess library for Gleam
Add support for generating En Passant moves
+8
+8
src/starfish/internal/move.gleam
+8
src/starfish/internal/move.gleam
···
86
86
Capture(from: position, to: new_position),
87
87
..moves
88
88
]
89
+
Ok(board.Empty) if game.en_passant_square == Some(new_position) -> [
90
+
EnPassant(from: position, to: new_position),
91
+
..moves
92
+
]
89
93
Ok(board.Empty) | Ok(board.Occupied(_, _)) | Error(_) -> moves
90
94
}
91
95
···
93
97
case iv.get(game.board, new_position) {
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98
Ok(board.Occupied(colour:, ..)) if colour != game.to_move -> [
95
99
Capture(from: position, to: new_position),
100
+
..moves
101
+
]
102
+
Ok(board.Empty) if game.en_passant_square == Some(new_position) -> [
103
+
EnPassant(from: position, to: new_position),
96
104
..moves
97
105
]
98
106
Ok(board.Empty) | Ok(board.Occupied(_, _)) | Error(_) -> moves