SKSpriteNode通过触摸拖动运动 [英] SKSpriteNode drag movement by touch

问题描述

我正在尝试通过触摸屏幕在屏幕周围拖动SKSpirteNode.但是我希望能够不断移动Sprite，目前，我的代码仅将Sprite移动到触摸的位置，但是如果我按住并移动Sprite，则不会跟随.此外，我不想必须"触摸SKSpriteNode来激活运动，我不想触摸屏幕上的任何位置，并希望从该SKSpriteNode获得运动响应.

I'm trying to drag a SKSpirteNode around the screen by touching the screen. But I want to be able to do a constant movement of the Sprite, currently my code only moves the sprite to the location of my touch but if I hold and move the sprite will not follow. Moreover I don't want to "have" to touch the SKSpriteNode to activate the movement, I want to touch anywhere on the screen and to have a movement response from that SKSpriteNode.

这是我当前的代码:

class GameScene: SKScene {
   override func didMoveToView(view: SKView) {
    // SpriteNode I want to drag around
    basket = SKSpriteNode(texture: basketTexture)
    self.addChild(basket)
   }

override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
    /* Called when a touch begins */

    var nodeTouched = SKNode()
    var currentNodeTouched = SKNode()

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

        nodeTouched = self.nodeAtPoint(location)
        basket.position = location

    }

谢谢您的帮助.

推荐答案

我通过使用func touchesMoved而不是touchesBegan解决了这一问题，并且可以完美流畅地工作.这是最终代码:

I solved this by using the func touchesMoved instead of touchesBegan and works perfectly and smoothly. here is the final code:

class GameScene: SKScene {
 override func didMoveToView(view: SKView) {
// SpriteNode I want to drag around
basket = SKSpriteNode(texture: basketTexture)
self.addChild(basket)
}

override func touchesMoved(touches: NSSet, withEvent event: UIEvent) {
/* Called when a touch begins */

var nodeTouched = SKNode()
var currentNodeTouched = SKNode()

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

    nodeTouched = self.nodeAtPoint(location)
    basket.position = location

}

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