Ios 知道skspritenode已经完全超越了另一个skspritenode

我试图找出一个SKSpriteNode已经完全迭代了另一个

SKSpriteNode

这是我迄今为止提出的代码，

if (node.frame.maxY == player.frame.minY) {
    player.physicsBody?.collisionBitMask = collisionTypes.vortex.rawValue
}

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我知道这很简单，但我在这里迷路了。

设置两个对象的contactTestBitMask属性。然后在DIDBENG func中检测它们何时碰撞，然后在didEnd func中检测它们何时停止碰撞

player.physicsBody?.contactTestBitMask = collisionTypes.bullet.rawValue
bullet.physicsBody?.contactTestBitMask = collisionTypes.player.rawValue

func didBegin(_ contact: SKPhysicsContact) {
    //detect your collision and do what you need to do
    //maybe set a bool to true if you have multiple collision types
}

func didEnd(_ contact: SKPhysicsContact) {
    //check that the above collison is the one that ended
    //run appropriate code for end collision
}

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你是说在上面吗？还是完全通过了？完全通过了