好的，所以我对精灵工具包相当陌生，我在Swift中工作。我有2个精灵节点，savior和chicken1。savior有一个物理体，这就是我设置它的方式：

var saviorTexture = SKTexture(imageNamed: "1.png")
saviorTexture.filteringMode = SKTextureFilteringMode.Nearest

savior = SKSpriteNode(texture: saviorTexture)
savior.setScale(0.2)
savior.position = CGPoint(x: self.frame.size.width * 0.5, y: self.frame.size.height * 0.2)
savior.physicsBody?.dynamic = true
savior.physicsBody?.allowsRotation = false
savior.physicsBody = SKPhysicsBody(rectangleOfSize: CGSizeMake(savior.size.width, savior.size.height))

        self.addChild(savior)

chicken1目前没有物理实体：

var chickenTexture = SKTexture(imageNamed: "block1")

        chicken1 = SKSpriteNode(texture: chickenTexture)
        chicken1.setScale(0.75)
        chicken1.position = CGPoint(x: self.size.width * 0.38, y: self.size.height * 1.2)
        self.addChild(chicken1)

我需要知道如何在这些对象之间进行碰撞检测（即，如果救世主和小鸡接触，则执行此操作），最好不要使chicken1成为物理体。

当我把鸡做成一个物理物体时，它突然变得不稳定，并移动其他物体。

如果没有物理学就无法进行碰撞检测，我怎样才能使鸡肉1成为不受任何影响的物理体，并且直接穿过其他物理体？

编辑**************

所以我跟随初学者swift sprite kit -节点碰撞检测帮助(SKPhysicsContact)并拥有:

>

    self.physicsWorld.contactDelegate = self

    savior.physicsBody?.categoryBitMask = saviorCategory
    savior.physicsBody?.contactTestBitMask = animalCategory
    savior.physicsBody?.collisionBitMask = 0

    chicken1.physicsBody?.categoryBitMask = animalCategory
    chicken1.physicsBody?.contactTestBitMask = saviorCategory
    chicken1.physicsBody?.collisionBitMask = 0

    func didBeginContact(contact: SKPhysicsContact) {

    var saviorPhysics: SKPhysicsBody
    var chicken1Physics: SKPhysicsBody

    if contact.bodyA.categoryBitMask < contact.bodyB.categoryBitMask
    {
        saviorPhysics = contact.bodyA
        chicken1Physics = contact.bodyB
    }
    else {
        saviorPhysics = contact.bodyB
        chicken1Physics = contact.bodyA
    }

    if saviorPhysics.categoryBitMask == 0 && chicken1Physics.categoryBitMask == 1 {
        self.chicken1.removeFromParent()
    }

}