def test_red_jump_left(self):
# default turn is BLACK so we change it to RED first
self.b.turn = Color.RED
# Set a black piece to a jumpable position
self.b.set_piece_at(Tile(3, 4), Piece(Color.BLACK))
self.assertMoveType(MoveType.JUMP, self.b.move_piece(Tile(2, 5), Tile(4, 3)))
self.assertIsNone(self.b.get_piece_at(Tile(3, 4)))
def test_undo_normal_move(self):
move = Move([Tile(5, 2), Tile(4, 3)])
must_jump = self.b.must_jump
jumped_pieces, was_king = self.ai.do_move(move, self.b)
self.ai.undo_move(move, jumped_pieces, must_jump, was_king, self.b)
self.assertIsNone(self.b.get_piece_at(Tile(4, 3)))
self.assertIsNotNone(self.b.get_piece_at(Tile(5, 2)))
def test_deep_copy_board(self):
nb = copy.deepcopy(self.b)
piece = self.b.get_piece_at(Tile(2, 1))
piece.king()
self.assertEqual(False, nb.get_piece_at(Tile(2, 1)).is_king)
self.b.move_piece(Tile(2, 1), Tile(3, 0))
self.assertEqual(None, nb.get_piece_at(Tile(3, 0)))
def test_win_condition(self):
self.b = Board(True)
self.b.set_piece_at(Tile(4, 1), Piece(Color.RED))
self.b.set_piece_at(Tile(5, 2), Piece(Color.BLACK))
self.b.red_checkers = 1
self.b.black_checkers = 1
self.b.move_piece(Tile(5, 2), Tile(3, 0))
self.assertEqual(Color.BLACK, self.b.winner())
def test_king_jump_back_right(self):
# default turn is BLACK so we change it to RED first
self.b.turn = Color.RED
# Set up the red king
piece = Piece(Color.RED)
self.b.set_piece_at(Tile(6, 1), piece)
piece.king()
# King jumping back is a valid JUMP move
self.assertMoveType(MoveType.JUMP, self.b.move_piece(Tile(6, 1), Tile(4, 3)))
# Piece the king jumped is removed
self.assertIsNone(self.b.get_piece_at(Tile(5, 2)))
def test_king_normal_moves(self):
# default turn is BLACK so we change it to RED first
self.b.turn = Color.RED
piece = Piece(Color.RED)
self.b.set_piece_at(Tile(4, 3), piece)
piece.king()
# red king moves backwards
self.assertMoveType(MoveType.NORMAL, self.b.move_piece(Tile(4, 3), Tile(3, 4)))
# RED shouldn't be able to move 2 turns in a row so we set to RED
self.b.turn = Color.RED
# red king moves forwards
self.assertMoveType(MoveType.NORMAL, self.b.move_piece(Tile(3, 4), Tile(4, 3)))
def test_undo_jump_move(self):
self.test_get_available_moves_with_jump()
move = Move([Tile(3, 0), Tile(5, 2)])
must_jump = self.b.must_jump
jumped_pieces, was_king = self.ai.do_move(move, self.b)
jumped_piece = jumped_pieces[0]
self.ai.undo_move(move, jumped_pieces, must_jump, was_king, self.b)
self.assertIsNone(self.b.get_piece_at(Tile(5, 2)))
red_piece = self.b.get_piece_at(Tile(3, 0))
self.assertIsNotNone(red_piece)
black_piece = self.b.get_piece_at(Tile(4, 1))
self.assertIsNotNone(black_piece)
self.assertEqual(jumped_piece, black_piece)
self.assertEqual(Color.BLACK, black_piece.color)
def test_undo_double_jump(self):
piece = Piece(Color.RED)
piece.king()
self.b.set_piece_at(Tile(4, 3), piece)
self.b.set_piece_at(Tile(1, 0), None)
move = Move([Tile(5, 4), Tile(3, 2), Tile(1, 0)])
must_jump = self.b.must_jump
jumped_pieces, was_king = self.ai.do_move(move, self.b)
self.ai.undo_move(move, jumped_pieces, must_jump, was_king, self.b)
self.assertEqual(Color.RED, self.b.get_piece_at(Tile(2, 1)).color)
# piece was added to array of jumped pieces by do_move and readded to the board by undo_move
self.assertEqual(piece, self.b.get_piece_at(Tile(4, 3)))
self.assertEqual(Color.BLACK, self.b.get_piece_at(Tile(5, 4)).color)
self.assertIsNone(self.b.get_piece_at(Tile(1, 0)))
self.assertIsNone(self.b.get_piece_at(Tile(3, 2)))
def get_available_moves(self, board) -> List[Move]:
moves = []
for row in range(8):
for col in range(8):
if (col + row) % 2 == 1:
moves += self.get_moves(Tile(row, col), board)
return moves
def handle_click(self):
(x, y) = pygame.mouse.get_pos()
row = int((y - y % 100) / 100)
column = int((x - x % 100) / 100)
clicked_tile = Tile(row, column)
piece = self.board.get_piece_at(clicked_tile)
if self.selected_tile is None:
if piece is None:
return
elif piece.color != self.board.turn:
return
elif self.board.must_jump and not self.board.can_jump(clicked_tile):
return
self.selected_tile = clicked_tile
else:
move_type = self.board.move_piece(self.selected_tile, clicked_tile)
if move_type == MoveType.JUMP and self.board.can_jump(clicked_tile):
self.selected_tile = clicked_tile
else:
self.selected_tile = None
if self.board.turn == Color.RED and self.num_AIs == 1:
self.draw_board()
pygame.display.flip()
self.red_ai.next_move()
def get_moves(self,
start: Tile,
board,
only_jumps=False,
previous_moves=None,
counter=0) -> List[Move]:
if previous_moves is None:
previous_moves = []
moves = []
tiles_to_check = list(start.get_valid_diagonal_tiles(2))
if not only_jumps:
tiles_to_check += list(start.get_valid_diagonal_tiles(1))
for end in tiles_to_check:
current_move = Move([start, end])
redid_move = False
for move in previous_moves:
if current_move == move.inverse() or current_move == move:
redid_move = True
break
if redid_move:
continue
move_type = board.classify_move(start, end)
if move_type == MoveType.INVALID:
continue
if move_type == MoveType.NORMAL:
moves.append(current_move)
if move_type == MoveType.JUMP:
piece = board.get_piece_at(start)
was_king = piece.is_king
if end.is_end_row():
piece.king()
board.set_piece_at(start, None)
board.set_piece_at(end, piece)
previous_moves.append(current_move)
extra_jumps = self.get_moves(end,
board,
only_jumps=True,
previous_moves=previous_moves,
counter=counter + 1)
piece.king() if was_king else piece.unking()
board.set_piece_at(start, piece)
board.set_piece_at(end, None)
if extra_jumps:
moves += [Move([start] + m.path) for m in extra_jumps]
else:
moves.append(Move([start, end]))
return moves
def test_triple_jump(self):
self.b = Board(True)
self.b.turn = Color.RED
self.b.red_checkers = 1
self.b.black_checkers = 3
self.b.set_piece_at(Tile(0, 0), Piece(Color.RED))
self.b.set_piece_at(Tile(1, 1), Piece(Color.BLACK))
self.b.set_piece_at(Tile(3, 3), Piece(Color.BLACK))
self.b.set_piece_at(Tile(5, 5), Piece(Color.BLACK))
print(self.b)
self.assertMoveType(MoveType.JUMP, self.b.move_piece(Tile(0, 0), Tile(2, 2)))
print(self.b)
self.assertMoveType(MoveType.JUMP, self.b.move_piece(Tile(2, 2), Tile(4, 4)))
print(self.b)
self.assertMoveType(MoveType.JUMP, self.b.move_piece(Tile(4, 4), Tile(6, 6)))
print(self.b)
self.assertEqual(self.b.turn, Color.BLACK)
def test_double_jump(self):
self.b.set_piece_at(Tile(4, 3), Piece(Color.RED))
self.b.set_piece_at(Tile(1, 0), None)
self.assertMoveType(MoveType.JUMP, self.b.move_piece(Tile(5, 4), Tile(3, 2)))
# testing that pieces other than target_tile cannot move during a double jump
self.assertMoveType(MoveType.INVALID, self.b.move_piece(Tile(5, 0), Tile(4, 1)))
self.assertEqual(self.b.turn, Color.BLACK)
self.assertMoveType(MoveType.JUMP, self.b.move_piece(Tile(3, 2), Tile(1, 0)))
self.assertIsNone(self.b.target_tile)
self.assertEqual(self.b.turn, Color.RED)
def test_same_color_jump_invalid(self):
# default turn is BLACK so we change it to RED first
self.b.turn = Color.RED
# Red jumping red is INVALID and does not remove other red piece
self.assertMoveType(MoveType.INVALID, self.b.move_piece(Tile(1, 2), Tile(3, 4)))
self.assertIsNotNone(self.b.get_piece_at(Tile(2, 3)))
# INVALID RED move should not change turn so we change it manually to BLACK
self.b.turn = Color.BLACK
# Black jumping black is INVALID and does not remove other black piece
self.assertMoveType(MoveType.INVALID, self.b.move_piece(Tile(6, 1), Tile(4, 3)))
self.assertIsNotNone(self.b.get_piece_at(Tile(5, 2)))
def test_has_jump_after_normal_with_jump(self):
self.test_has_jump_after_normal_with_no_jump()
self.assertMoveType(MoveType.NORMAL, self.b.move_piece(Tile(5, 4), Tile(4, 3)))
self.assertTrue(self.b.must_jump)
def test_tile_addition(self):
self.assertEqual(Tile(3, 4), Tile(1, 3) + Tile(2, 1))
self.assertEqual(Tile(1, 1), Tile(4, 2) + Tile(-3, -1))
def test_find_double_jump(self):
self.b.move_piece(Tile(5, 0), Tile(4, 1))
self.b.move_piece(Tile(2, 7), Tile(3, 6))
self.b.move_piece(Tile(6, 1), Tile(5, 0))
self.b.move_piece(Tile(1, 6), Tile(2, 7))
self.b.move_piece(Tile(4, 1), Tile(3, 2))
print(self.b)
moves = self.ai.get_available_moves(self.b)
print(", ".join([str(m) for m in moves]))
self.assertEqual([Move([Tile(2, 1),
Tile(4, 3),
Tile(6, 1)]),
Move([Tile(2, 3),
Tile(4, 1)])],
moves)
def test_can_jump(self):
self.b.set_piece_at(Tile(4, 3), Piece(Color.RED))
self.assertEqual(True, self.b.can_jump(Tile(5, 4)))
def test_promotion(self):
self.b = Board(True)
self.b.set_piece_at(Tile(1, 0), Piece(Color.BLACK))
self.b.move_piece(Tile(1, 0), Tile(0, 1))
self.assertEqual(True, self.b.get_piece_at(Tile(0, 1)).is_king)
def test_wrong_player(self):
self.assertMoveType(MoveType.INVALID, self.b.move_piece(Tile(2, 1), Tile(3, 2)))
self.assertIsNone(self.b.get_piece_at(Tile(3, 2)))
self.assertIsNotNone(self.b.get_piece_at(Tile(2, 1)))
self.assertEqual(Color.BLACK, self.b.turn)
def test_normal_moves(self):
# default turn is BLACK so we change it to RED first
self.b.turn = Color.RED
# Alternating forward moves
self.assertMoveType(MoveType.NORMAL, self.b.move_piece(Tile(2, 1), Tile(3, 2)))
self.assertMoveType(MoveType.NORMAL, self.b.move_piece(Tile(5, 6), Tile(4, 7)))
self.assertMoveType(MoveType.NORMAL, self.b.move_piece(Tile(2, 7), Tile(3, 6)))
self.assertMoveType(MoveType.NORMAL, self.b.move_piece(Tile(5, 2), Tile(4, 1)))
# Red moving back: INVALID
self.assertMoveType(MoveType.INVALID, self.b.move_piece(Tile(3, 2), Tile(2, 1)))
# INVALID RED move should not change turn so we change it manually to BLACK
self.b.turn = Color.BLACK
# Black moving back: INVALID
self.assertMoveType(MoveType.INVALID, self.b.move_piece(Tile(4, 1), Tile(5, 0)))
def test_cannot_move_piece_if_has_jump(self):
self.test_has_jump_after_normal_with_jump()
self.assertMoveType(MoveType.INVALID, self.b.move_piece(Tile(2, 7), Tile(3, 6)))
def test_has_jump_after_jump(self):
self.test_has_jump_after_normal_with_jump()
self.assertMoveType(MoveType.JUMP, self.b.move_piece(Tile(3, 2), Tile(5, 4)))
self.assertTrue(self.b.must_jump)
def test_get_available_moves_with_no_jumps(self):
self.b.turn = Color.RED
self.assertEqual([Move([Tile(2, 1), Tile(3, 0)]),
Move([Tile(2, 1), Tile(3, 2)]),
Move([Tile(2, 3), Tile(3, 2)]),
Move([Tile(2, 3), Tile(3, 4)]),
Move([Tile(2, 5), Tile(3, 4)]),
Move([Tile(2, 5), Tile(3, 6)]),
Move([Tile(2, 7), Tile(3, 6)])],
self.ai.get_available_moves(self.b))
def test_get_available_moves_with_jump(self):
self.b.move_piece(Tile(5, 0), Tile(4, 1))
self.b.move_piece(Tile(2, 1), Tile(3, 0))
self.b.move_piece(Tile(5, 2), Tile(4, 3))
print(self.b)
print(", ".join([str(m) for m in self.ai.get_available_moves(self.b)]))
def test_normal_move_after_jump_good(self):
self.test_double_jump()
self.assertMoveType(MoveType.NORMAL, self.b.move_piece(Tile(2, 7), Tile(3, 6)))
def test_black_jump_left(self):
# Set a red piece to a jumpable position
self.b.set_piece_at(Tile(4, 3), Piece(Color.RED))
self.assertMoveType(MoveType.JUMP, self.b.move_piece(Tile(5, 4), Tile(3, 2)))
self.assertIsNone(self.b.get_piece_at(Tile(4, 3)))
def test_cannot_move_wrong_piece_after_jump(self):
self.b.set_piece_at(Tile(4, 3), Piece(Color.RED))
self.b.set_piece_at(Tile(1, 0), None)
self.assertMoveType(MoveType.JUMP, self.b.move_piece(Tile(5, 4), Tile(3, 2)))
self.assertEqual(self.b.turn, Color.BLACK)
self.assertMoveType(MoveType.INVALID, self.b.move_piece(Tile(5, 0), Tile(4, 1)))
def test_turns_alternate(self):
self.assertMoveType(MoveType.NORMAL, self.b.move_piece(Tile(5, 0), Tile(4, 1)))
self.assertMoveType(MoveType.NORMAL, self.b.move_piece(Tile(2, 1), Tile(3, 2)))
def test_has_jump_after_normal_with_no_jump(self):
self.b.turn = Color.RED
self.assertMoveType(MoveType.NORMAL, self.b.move_piece(Tile(2, 1), Tile(3, 2)))
self.assertFalse(self.b.must_jump)
