43 lines
1.7 KiB
Python
43 lines
1.7 KiB
Python
from logic.move import Move, PieceMove
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from logic.pieces.piece import Piece
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from logic.position import Position
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class Pawn(Piece):
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def legal_moves(self, board) -> list[Move]:
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ret = []
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# can we capture to the left?
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if self.pos.x > 0 and (
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(self.colour == self.WHITE and (capturable_piece := board.piece_at(self.pos.x - 1, self.pos.y + 1)))
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or
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(self.colour == self.BLACK and (capturable_piece := board.piece_at(self.pos.x - 1, self.pos.y - 1)))
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):
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if capturable_piece.colour != self.colour:
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ret.append(PieceMove(self, capturable_piece.pos, is_capturing = True))
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# can we capture to the right?
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if self.pos.x < 7 and (
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(self.colour == self.WHITE and (capturable_piece := board.piece_at(self.pos.x + 1, self.pos.y + 1)))
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or
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(self.colour == self.BLACK and (capturable_piece := board.piece_at(self.pos.x + 1, self.pos.y - 1)))
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):
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if capturable_piece.colour != self.colour:
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ret.append(PieceMove(self, capturable_piece.pos, is_capturing = True))
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if self.colour == Piece.WHITE:
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for dy in range(1, 3 if self.pos.y == 1 else 2):
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if self.pos.y + dy > 7 or board.piece_at(self.pos.x, self.pos.y + dy):
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break
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pos = Position(self.pos.x, self.pos.y + dy)
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ret.append(PieceMove(self, pos))
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else:
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for dy in range(1, 3 if self.pos.y == 6 else 2):
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if self.pos.y - dy < 0 or board.piece_at(self.pos.x, self.pos.y - dy):
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break
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pos = Position(self.pos.x, self.pos.y - dy)
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ret.append(PieceMove(self, pos))
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print(ret)
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return ret
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