我不希望我的物理物体在它们接触时发生碰撞,但我想使用physicsBody?.usesPreciseCollisionDetection = true,这样它就能更准确地探测这两个物体之间的接触。所以如果我
physicsBody?.collisionBitMask = PhysicsCategory.None //Assume that PhysicsCategory is an Enum and .None means that the bit mask is set to 0 or nothing
physicsBody?.usesPreciseCollisionDetection