Question

我正在尝试为我的小鸟风格游戏添加一个简单的关卡。我想方设法使用2个不同的场景，但更喜欢它在同一个场景中。我只是希望一旦达到15分，墙壁会更频繁地出现！这是我的代码

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {


    if gameStarted == false{

        gameStarted = true

        body.physicsBody?.affectedByGravity = true



        let spawn = SKAction.run({
            () in

            self.createWalls()

        })
        let delay = SKAction.wait(forDuration: 2.0)
        let spawnDelay = SKAction.sequence([delay, spawn])
        let spawnDelayForever = SKAction.repeatForever(spawnDelay)
        self.run(spawnDelayForever)


        let distance = CGFloat(self.frame.width + wallPair.frame.width)
        let movePipes = SKAction.moveBy(x: -distance - 50, y: 0, duration: TimeInterval( 0.01 * distance))
        let removePipes = SKAction.removeFromParent()
        moveAndRemove = SKAction.sequence([movePipes,removePipes])




        body.physicsBody?.velocity = CGVector(dx: 0, dy: 0)
        body.physicsBody?.applyImpulse(CGVector(dx: 0, dy: 68))
       run(flap)


        }

我尝试添加一个if语句，之前是if语句，如

如果得分= 20 {

但这只会延迟施加冲动，直到玩家获得20分。

有没有办法可以说

if score is between 0 and 20 then run my first spawning action

然后另一个说法得分＆gt; 20运行我的第二次产卵动作会产生较慢的产卵时间吗？

希望这是有道理的！感谢

Answer 1

您可以将spawnDelayForever逻辑移动到一个函数中并以2秒延迟作为参数调用它，然后当游戏分数达到20时，再次调用spawnDelayForever函数传递5作为输入参数。您需要使用密钥添加操作。

self.run(spawnDelayForever(withDelay: 2.0), withKey: "spawnDelayForever")

然后在再次添加之前删除正在运行的操作。

self.removeAction(forKey: "spawnDelayForever")
self.run(spawnDelayForever(withDelay: 5.0), withKey: "spawnDelayForever")

您的代码可能看起来像这样。

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    if gameStarted == false {
        gameStarted = true
        body.physicsBody?.affectedByGravity = true

        self.run(spawnDelayForever(withDelay: 2.0), withKey: "spawnDelayForever")
        // other code...

    } else if score > 20 && spawnDelayApplied == false {
        self.removeAction(forKey: "spawnDelayForever")
        self.run(spawnDelayForever(withDelay: 5.0), withKey: "spawnDelayForever")
        spawnDelayApplied = true
    }
}

func spawnDelayForever(withDelay sec: TimeInterval) -> SKAction {
    let spawn = SKAction.run({
        () in
        self.createWalls()
    })

    let delay = SKAction.wait(forDuration: sec)
    let spawnDelay = SKAction.sequence([delay, spawn])

    return SKAction.repeatForever(spawnDelay)
}

试图为我的swift sprite kit游戏添加关卡

1 个答案: