0880/shatranj
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix piece movement generation

Browse Source
This commit is contained in:
0880
2026-01-21 13:58:14 +03:30
parent e786d42e98
commit 752061f92f
1 changed files with 4 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
app.py
View File

@@ -365,14 +365,12 @@ def get_piece_moves(piece_kind, board: Board, is_white, src: str) -> list[Coord]
if (y == 1 or y == 6) and board.index_xy(x, y + 2 * dir) == Piece.EMPTY:
valids.append(Coord(x=x, y=y + 2 * dir))
if (
board.index_xy(x + 1, y + dir)
not in [Piece.EMPTY, Piece.NONE, Piece.BLACK_KING, Piece.WHITE_KING]
board.index_xy(x + 1, y + dir) not in [Piece.EMPTY, Piece.NONE]
and board.index_xy(x + 1, y + dir).value.isupper() != is_white
):
valids.append(Coord(x=x + 1, y=y + dir))
if (
board.index_xy(x - 1, y + dir)
not in [Piece.EMPTY, Piece.NONE, Piece.BLACK_KING, Piece.WHITE_KING]
board.index_xy(x - 1, y + dir) not in [Piece.EMPTY, Piece.NONE]
and board.index_xy(x - 1, y + dir).value.isupper() != is_white
):
valids.append(Coord(x=x - 1, y=y + dir))
@@ -469,7 +467,6 @@ def generate_valid_moves(
):
king = Coord(j, i)
break
for m in possible_moves:
fake_board = board.copy()
fake_board.grid[m.y][m.x] = fake_board.index(src)
@@ -478,24 +475,13 @@ def generate_valid_moves(
king_safe = True
for i in range(8):
for j in range(8):
p = board.grid[j][i]
p = board.index_xy(j, i)
if p != Piece.EMPTY and p.value.isupper() != is_white:
# Enemy
enemy_moves = get_piece_moves(
p.value.lower(), board, not is_white, xy_to_pos_safe(j, i)
)
if king not in enemy_moves:
continue
ni = i
nj = j
if j == sx and i == sy:
ni = m.y
nj = m.x
new_enemy_moves = get_piece_moves(
p.value.lower(),
fake_board,
not is_white,
xy_to_pos_safe(nj, ni),
xy_to_pos_safe(j, i),
)
if king in new_enemy_moves:
king_safe = False