雪碧套件接触问题

Posted 2023-03-08

【中文标题】雪碧套件接触问题

【英文标题】：Sprite kit contact problems

【发布时间】：2016-03-24 01:43:42

【问题描述】：

我正在制作一个需要你躲避坠落物体的游戏。我试图让它在坠落的物体撞击玩家时运行某些代码。但它不起作用，请告诉我我的代码有什么问题。

import SpriteKit

struct physicsCatagory 
    static let person : UInt32 = 0x1 << 1
    static let Ice : UInt32 = 0x1 << 2



class GameScene: SKScene, SKPhysicsContactDelegate 

   var person = SKSpriteNode(imageNamed: "Person")



    override func didMoveToView(view: SKView) 


        physicsWorld.contactDelegate = self


        person.position = CGPointMake(self.size.width/2, self.size.height/12)
        person.setScale(0.4)
        person.physicsBody = SKPhysicsBody(rectangleOfSize: person.size)
        person.physicsBody?.affectedByGravity = false
        person.physicsBody?.categoryBitMask = physicsCatagory.person
        person.physicsBody?.contactTestBitMask = physicsCatagory.Ice
        person.physicsBody?.dynamic = false



        var IceTimer = NSTimer.scheduledTimerWithTimeInterval(0.5, target: self, selector: Selector("spawnFirstIce"), userInfo: nil, repeats: true)

        self.addChild(person)


        func didBeginContact(contact: SKPhysicsContact) 
            let firstBody = contact.bodyA
            let secondBody = contact.bodyB

            if firstBody.categoryBitMask == physicsCatagory.person && secondBody.categoryBitMask == physicsCatagory.Ice || firstBody.categoryBitMask == physicsCatagory.Ice && secondBody.categoryBitMask == physicsCatagory.person
       NSLog ("Test Test")           


        


    




    func spawnFirstIce()

        let Ice = SKSpriteNode(imageNamed: "FirstIce")
        Ice.setScale(0.5)
        Ice.physicsBody = SKPhysicsBody(rectangleOfSize: Ice.size)
        Ice.physicsBody?.categoryBitMask = physicsCatagory.Ice
        Ice.physicsBody?.contactTestBitMask = physicsCatagory.person
        Ice.physicsBody?.affectedByGravity = false
        Ice.physicsBody?.dynamic = true



        let MinValue = self.size.width / 8
        let MaxValue = self.size.width - 20
        let SpawnPoint =  UInt32(MaxValue - MinValue)
        Ice.position = CGPoint(x: CGFloat(arc4random_uniform(SpawnPoint)), y: self.size.height)
        self.addChild(Ice)



        let action = SKAction.moveToY(-85, duration: 3.0)
        let actionDone = SKAction.removeFromParent()
        Ice.runAction(SKAction.sequence([action,actionDone]))


    
    override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) 


        for touch in touches 
            let location = touch.locationInNode(self)

         person.position.x = location.x



                   
    
    override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) 

        for touch in touches 
            let location = touch.locationInNode(self)

            person.position.x = location.x



        
    




    override func update(currentTime: CFTimeInterval) 
        /* Called before each frame is rendered */
    

【参考方案1】：

您已经在 didMoveToView 方法中定义了 didBeginContact :)

将didBeginContact 放在该方法之外，并使其成为 GameScene 类的成员。

【讨论】：

噢噢噢噢。非常感谢。我花了一周时间研究这个愚蠢的东西。你是我的救星。

您是否尝试在函数定义中添加 print("Entering didBegingContact") 以查看它是否被调用？