def test_collision_pairs(self): from bGrease.collision import Circular, Pair broad = TestCollisionSys() world = TestWorld() coll = Circular(broad_phase=broad) coll.set_world(world) pos_set = world.position.set col_set = world.collision.set pos_set(1, (0, 0)) col_set(1, radius=5) pos_set(2, (3, 3)) col_set(2, radius=0) pos_set(3, (6, 0)) col_set(3, radius=1) pos_set(4, (-10, 4)) col_set(4, radius=2) pos_set(5, (-13, 4)) col_set(5, radius=2) pos_set(6, (0, 7)) col_set(6, radius=1.99) # Pair everything and make sure the narrow phase sorts it out broad.collision_pairs = set([ Pair(x+1, y+1) for x in range(6) for y in range(6) if x != y]) coll.step(0) self.assertEqual(coll.collision_pairs, set([Pair(1,2), Pair(1, 3), Pair(4, 5)]))
def test_before_step(self): # Queries should be well behaved even before the controller is run from bGrease.collision import Circular world = TestWorld() broad = TestCollisionSys() coll = Circular(broad_phase=broad) coll.set_world(world) self.assertEqual(coll.collision_pairs, set()) self.assertEqual(coll.query_point(0,0), set())
def test_collision_point_and_normal(self): from bGrease.collision import Circular, Pair broad = TestCollisionSys() world = TestWorld() coll = Circular(broad_phase=broad) coll.set_world(world) pos_set = world.position.set col_set = world.collision.set pos_set(1, (0, 0)) col_set(1, radius=2) pos_set(2, (4, 0)) col_set(2, radius=3) broad.collision_pairs = set([Pair(1,2)]) coll.step(0) pair = list(coll.collision_pairs)[0] (e1, p1, n1), (e2, p2, n2) = pair.info self.assertEqual(e1, 1) self.assertEqual(p1, (2, 0)) self.assertEqual(n1, (1, 0)) self.assertEqual(e2, 2) self.assertEqual(p2, (1, 0)) self.assertEqual(n2, (-1, 0)) pos_set(2, (0, -5)) col_set(2, radius=3.5) broad.collision_pairs = set([Pair(1,2)]) coll.step(0) pair = list(coll.collision_pairs)[0] (e1, p1, n1), (e2, p2, n2) = pair.info self.assertEqual(e1, 1) self.assertEqual(p1, (0, -2)) self.assertEqual(n1, (0, -1)) self.assertEqual(e2, 2) self.assertEqual(p2, (0, -1.5)) self.assertEqual(n2, (0, 1))
def test_handlers(self): from bGrease.collision import Circular world = TestWorld() handler_calls = [0, 0] def handler1(system): self.assertTrue(system is coll, system) handler_calls[0] += 1 def handler2(system): self.assertTrue(system is coll, system) handler_calls[1] += 1 coll = Circular(handlers=(handler1, handler2)) coll.set_world(world) coll.step(0) self.assertEqual(handler_calls, [1, 1]) coll.step(0) self.assertEqual(handler_calls, [2, 2]) coll.handlers = (handler2,) coll.step(0) self.assertEqual(handler_calls, [2, 3])
def test_update_aabbs(self): from bGrease.collision import Circular broad = TestCollisionSys() world = TestWorld() coll = Circular(broad_phase=broad) coll.set_world(world) pos = world.position col = world.collision pos.set(1, (0, 0)) col.set(1, radius=2) pos.set(2, (2, -3)) col.set(2, radius=0.5) pos.set(3, (-5, -2)) col.set(3, radius=10) for i in range(3): aabb = col[i + 1].aabb self.assertTrue(aabb.left == aabb.top == aabb.right == aabb.bottom == 0, aabb) coll.step(0) self.assertEqual(col[1].aabb, Data(left=-2, top=2, right=2, bottom=-2)) self.assertEqual(col[2].aabb, Data(left=1.5, top=-2.5, right=2.5, bottom=-3.5)) self.assertEqual(col[3].aabb, Data(left=-15, top=8, right=5, bottom=-12)) pos.set(1, (2, 0)) pos.set(2, (0, 0)) col.set(3, radius=5) coll.step(0) self.assertEqual(col[1].aabb, Data(left=0, top=2, right=4, bottom=-2)) self.assertEqual(col[2].aabb, Data(left=-0.5, top=0.5, right=0.5, bottom=-0.5)) self.assertEqual(col[3].aabb, Data(left=-10, top=3, right=0, bottom=-7)) coll.update_aabbs = False pos[1].position = (0, 0) col[1].radius = 3 col[2].radius = 0.75 col[3].position = (-3, 0) # aabbs should not change with update_aabbs set False coll.step(0) self.assertEqual(col[1].aabb, Data(left=0, top=2, right=4, bottom=-2)) self.assertEqual(col[2].aabb, Data(left=-0.5, top=0.5, right=0.5, bottom=-0.5)) self.assertEqual(col[3].aabb, Data(left=-10, top=3, right=0, bottom=-7))
def test_step(self): from bGrease.collision import Circular # Stepping the circular collision system should also step the broad phase broad = TestCollisionSys() world = TestWorld() coll = Circular(broad_phase=broad) coll.set_world(world) self.assertTrue(coll.world is world) self.assertTrue(coll.broad_phase.world is world) self.assertEqual(coll.collision_pairs, set()) self.assertEqual(broad.runtime, 0) coll.step(2) self.assertEqual(broad.runtime, 2) coll.step(1) self.assertEqual(broad.runtime, 3) self.assertEqual(coll.collision_pairs, set())
def test_query_point(self): from bGrease.collision import Circular, Pair world = TestWorld() broad = TestCollisionSys() coll = Circular(broad_phase=broad) coll.set_world(world) pos_set = world.position.set col_set = world.collision.set pos_set(1, (0, 0)) col_set(1, radius=1) pos_set(2, (0, 2)) col_set(2, radius=1.5) pos_set(3, (-4, 3)) col_set(3, radius=3) coll.step(0) self.assertEqual(broad.last_from_mask, None) self.assertEqual(coll.query_point(0,0), set([1])) self.assertEqual(coll.query_point(0,1), set([1, 2])) self.assertEqual(coll.query_point([0,1]), set([1, 2])) self.assertEqual(coll.query_point(1, 0), set([1])) self.assertEqual(coll.query_point(1.0001, 0), set()) self.assertEqual(coll.query_point(-1, 3), set([2,3])) self.assertEqual(coll.query_point(-5, 3), set([3])) self.assertEqual(broad.last_from_mask, 0xffffffff) coll.query_point([0, 0], from_mask=0xff) self.assertEqual(broad.last_from_mask, 0xff)