def play(self, domino: Domino) -> bool:
"""
Add a domino to the current train, updating internal state as necessary.
:param domino: the Domino to add
:return: a boolean indicating if the domino was added successfully
"""
if not domino.contains(self.requires):
return False
self.cars.append(domino)
self.requires = domino.get_other_number(self.requires)
self.demands_satisfaction = domino.is_double
return True
def test_matches(self):
d1 = Domino(2, 3)
d2 = Domino(5, 6)
d3 = Domino(3, 5)
self.assertFalse(d1.matches(d2))
self.assertFalse(d2.matches(d1))
self.assertTrue(d1.matches(d3))
self.assertTrue(d3.matches(d1))
self.assertTrue(d2.matches(d3))
self.assertTrue(d3.matches(d2))
def is_valid_play(self, domino: Domino, player: Player) -> bool:
"""
Assert if the player is allowed to place the specified domino on this train.
:param domino: the Domino to be placed.
:param player: the Player attempting to place it.
:return: True if play is allowed, False otherwise.
"""
return self.can_player_add(player) and domino.contains(self.requires)
def test_draw(self):
d = Domino(2, 3)
self.assertEqual("[2|3]", d.draw(d.left))
self.assertEqual("[3|2]", d.draw(d.right))
dd = Domino(6, 6)
self.assertEqual("[ 6 ]", dd.draw(d.right))
def test_other(self):
d = Domino(2, 3)
self.assertEqual(3, d.get_other_number(2))
self.assertEqual(2, d.get_other_number(3))
self.assertIsNone(d.get_other_number(42))
