def mobObjectChangeSpeedDirection(item: MobileObject, normalVector):
""" count a reflection angle"""
[speedValue, direction] = item.get_speed()
direction = tda.reflectance_angle(normalToSurface=normalVector,
angle=direction)
item.set_contact()
item.set_speed(value=speedValue, direction=direction)
def test_refl_ang3(self):
result = tda.reflectance_angle(normalToSurface=150, angle=35)
self.assertEqual(result, 265)
def test_refl_ang2(self):
result = tda.reflectance_angle(normalToSurface=45, angle=30)
self.assertEqual(result, 60)
def test_refl_ang1(self):
result = tda.reflectance_angle(normalToSurface=90, angle=30)
self.assertEqual(result, 150)