public static void Collide(PhysicsObject A, PhysicsObject B)
    {
        bool aMoving = A.isMoving;
        bool bMoving = B.isMoving;
        if (!aMoving && !bMoving) { return; }

        var colliderA = A.colliders;
        var colliderB = B.colliders;

        foreach (PhysicsCollider colA in colliderA) {
            foreach (PhysicsCollider colB in colliderB) {
                if (Collide(colA, colB)) {
                    A.CallOnCollide(colB);
                    B.CallOnCollide(colA);
                }
            }
        }
    }