Method collisionMatrixTick

experimental/physics/simulation.go:331–347

Store old collision state info

()

// Store old collision state info
func (s *Simulation) collisionMatrixTick() {

	s.prevCollisionMatrix = s.collisionMatrix
	s.collisionMatrix = collision.NewMatrix()

	lb := len(s.bodies)
	s.collisionMatrix.Set(lb, lb, false)

	// TODO verify that the matrices are indeed different
	//if s.prevCollisionMatrix == s.collisionMatrix {
	//	log.Error("SAME")
	//}

	// TODO
	//s.bodyOverlapKeeper.tick()
	//s.shapeOverlapKeeper.tick()
}

func (s *Simulation) uniqueBodiesFromPairs(pairs []CollisionPair) []*object.Body {