def test_contact_top(self):
rect_1 = ("rectangle", 0.0, 0.0, 1.0, 1.0, 0.0)
rect_2 = ("rectangle", 0.0, 1.0, 1.0, 1.0, 0.0)
contact_points = []
result = math_collision.is_rect_rect_collision(rect_1, rect_2, contact_points)
self.assertEqual(result, True)
self.assertEqual(contact_points, [(0.0, 1.0), (1.0, 1.0)])
def test_contact_top(self):
rect_1 = ("rectangle", 0.0, 0.0, 1.0, 1.0, 0.0)
rect_2 = ("rectangle", 0.0, 1.0, 1.0, 1.0, 0.0)
contact_points = []
result = math_collision.is_rect_rect_collision(rect_1, rect_2,
contact_points)
self.assertEqual(result, True)
self.assertEqual(contact_points, [(0.0, 1.0), (1.0, 1.0)])
def test_contact_top_side(self):
print
rect_2_angle = 0.0
rect_1 = ("rectangle", 0.0, 0.0, 1.0, 1.0, 0.0)
rect_2 = ("rectangle", 0.0, 1.0, 1.0, 1.0, rect_2_angle)
contact_points = []
result = math_collision.is_rect_rect_collision(rect_1, rect_2, contact_points)
contact_sum_vector = math_collision.get_contact_sum_vector(contact_points, (0.0, 0.0))
self.assertEqual(result, True)
self.assertEqual(contact_points, [(0.0, 1.0), (1.0, 1.0)])
self.assertEqual(contact_sum_vector, (0.5, 1.0))
cases = [
# hit from above
(0.0, (1.0, -1.0), (1.0, 1.0)),
(0.0, (0.0, -1.0), (0.0, 1.0)),
(0.0, (-1.0, -1.0), (-1.0, 1.0)),
(180.0, (1.0, -1.0), (1.0, 1.0)),
# hit from below
(0.0, (1.0, 1.0), (1.0, -1.0)),
(0.0, (0.0, 1.0), (0.0, -1.0)),
(0.0, (-1.0, 1.0), (-1.0, -1.0)),
#
(45.0, (1.0, 0.0), (0.0, 1.0)),
(45.0, (0.0, -1.0), (-1.0, 0.0)),
# hit from the left
(90.0, (1.0, 0.0), (-1.0, 0.0)),
(90.0, (1.0, 1.0), (-1.0, 1.0)),
(90.0, (1.0, -1.0), (-1.0, -1.0)),
]
for rect_2_angle, v_1, expected_v in cases:
rect_2_unit_axis_vector = math_2d.create_unit_vector(rect_2_angle)
parallel_v,perpend_v = math_2d.get_projection_vectors(rect_2_unit_axis_vector, v_1)
reflect_v = math_2d.vector_sub(v_1, math_2d.vector_mul(perpend_v, 2.0))
print rect_2_angle, v_1, ":", reflect_v
self.assertAlmostEqual(reflect_v[0], expected_v[0], places=5)
self.assertAlmostEqual(reflect_v[1], expected_v[1], places=5)
