随着游戏的进行,在 SKAction.waitForDuration() 中更改时间间隔

Change time interval in SKAction.waitForDuration() as game goes on

基本上这是重复动作序列中的动作之一。每次在序列中调用动作时,我都希望等待时间增加,所以我添加了一个计数器作为等待时间编号,并在序列中调用动作时递增。问题在于,变量仅在序列开始时递增,但在序列中再次发生动作时根本不会改变,等待时间在整个游戏过程中保持不变。我不知道如何在它被调用时改变它

var timeInterval = 0
//main method
override func didMoveToView(view: SKView) {
    var scale = SKAction.scaleTo(5,duration: 2)
    sprite = spriteSet(texture: SKTexture(imageNamed: "texture"), color: UIColor.brownColor(), size: CGSizeMake(100,100))
    sprite.runAction(SKAction.repeatActionForever(SKAction.sequence([waitAction,scale,waitAction])))
}
//I want the time to increase each time this function is called in the sequence
func waitFunction() -> SKAction {
    timeInterval++
    return SKAction.waitForDuration(NSTimeInterval(timeInterval))
}

你可以使用递归的方式来完成你想要的(增加等待参数的持续时间):

class GameScene:SKScene {

    var wait:NSTimeInterval = 0

    override func didMoveToView(view: SKView) {

        NSLog("Start") //Using NSLog just to print the current time
        recursive()

    }

    func recursive(){

        let recursive = SKAction.sequence([

            SKAction.waitForDuration(++wait),
            //Do your stuff here, eg. run scale, move...
            SKAction.runBlock({[unowned self] in NSLog("Block executed"); self.recursive()})
            ])

        runAction(recursive, withKey: "aKey")
    }
}

您目前遇到的是 wait 操作在操作序列中创建、初始化和重用。每次都要重建一个动作。