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added comments to the make_move function

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This commit is contained in:
Karma Riuk 2025-01-31 18:24:52 +01:00
parent 6c0819428e
commit e862ab6b0b
1 changed files with 9 additions and 1 deletions
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10
src/logic/board.py
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@ -161,15 +161,21 @@ class Board:
if dest_piece:
assert dest_piece.colour != move.piece.colour, "A piece cannot cannot eat another piece of the same colour"
# -- Copy current state
ret = Board()
ret._white = self._white.copy()
ret._black = self._black.copy()
ret._turn = Colour.WHITE if self._turn == Colour.BLACK else Colour.BLACK
ret._white_castling_write = self._white_castling_write.copy()
ret._black_castling_write = self._black_castling_write.copy()
ret._en_passant_target = self._en_passant_target
piece = move.piece
# -- Set en passant target if needed
ret._en_passant_target = self._en_passant_target
# -- Actually make the move
pieces_moving, other_pieces = (ret._white, ret._black) if piece.colour == Colour.WHITE else (ret._black, ret._white)
del pieces_moving[piece.pos]
@ -177,6 +183,7 @@ class Board:
if move.pos in other_pieces:
del other_pieces[move.pos]
# -- Handle castling (just move the rook over)
if move.castle_side == CastleSide.King:
rook_pos = Position(7, piece.pos.y)
assert rook_pos in pieces_moving and type(pieces_moving[rook_pos]) == Rook, "Either rook is absent from the king side or you are trying to castle with something else than a rook..."
@ -191,6 +198,7 @@ class Board:
new_rook_pos = Position(3, piece.pos.y)
pieces_moving[new_rook_pos] = Rook(new_rook_pos, piece.colour)
# -- Check for castling rights
if piece.colour == Colour.WHITE:
if type(piece) == King:
ret._white_castling_write = set()