swift - 尝试使用 spritekit 和 swift 更改触摸时的对象位置

Question

所以我将这段代码作为场景的一部分:

import SpriteKit

class GameScene: SKScene {

    override func didMoveToView(view: SKView) {

        // set the background color
        backgroundColor = SKColor.whiteColor()

        var Player = SKShapeNode(circleOfRadius: 20)
        Player.position = CGPoint(x: size.width/2, y: size.height/2)
        Player.name = "player"
        Player.fillColor = SKColor.blackColor()
        Player.physicsBody = SKPhysicsBody(circleOfRadius: 20)
        Player.physicsBody?.dynamic = false
        addChild(Player)

    }

        // touch
        override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {

            let touch = touches.anyObject() as UITouch
            let touchLocation = touch.locationInNode(self)

            Player.position = CGPoint(x: size.width*0.2, y: size.height*0.2)
            print("you touched")

    }
}

我得到一个错误提示

"use of unresolved identifier "Player"

我猜，因为播放器最初是在 didMoveToView 函数中创建的，所以它无法识别 touchesBegan 函数中的“Player”。我该如何解决这个问题？我想做的就是在您触摸屏幕的任何地方时将对象置于该位置。

Answer 1

试试这个

var Player = SKShapeNode(circleOfRadius: 20)

...

override func didMoveToView(view: SKView) {
    Player.name = "player"
    Player.fillColor = SKColor.blackColor()
    Player.physicsBody = SKPhysicsBody(circleOfRadius: 20)
    Player.physicsBody?.dynamic = false
    addChild(self.Player)
}

override func touchesMoved(touches: NSSet!, withEvent event: UIEvent!) {
    let touch = touches.anyObject() as UITouch
    let touchLocation = touch.locationInNode(self)

    self.Player.position = touchLocation.position

}