将游戏屏幕分成左右触摸？

Question

所以我是 Swift 的新手，我正在尝试弄清楚如何将屏幕基本上分成两半，这样如果点击屏幕的右侧，对象就会移到上方向右，如果点击屏幕左侧，则对象将移到左侧。我试着玩弄这些手势，但我还没有走得太远。我怎样才能解决这个问题？它在 locationinNode

处给我一个错误

我正在使用故事板添加移动对象。

这是我的：

import UIKit
class ViewController: UIViewController { 

@IBOutlet var Lane: [UIImageView]!
@IBOutlet weak var Player: UIImageView!
@IBOutlet weak var Platform: UIImageView!
override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

func MoveLeft(){
    UIView.animateWithDuration(0.2, delay: 0, options:UIViewAnimationOptions.CurveLinear, animations: {
        self.Player.center = CGPoint(x: self.Player.center.x - 125, y: self.Player.center.y)
        }, completion: nil)
}

func MoveRight(){
    UIView.animateWithDuration(0.2, delay: 0, options:UIViewAnimationOptions.CurveLinear, animations: {
        self.Player.center = CGPoint(x: self.Player.center.x + 125, y: self.Player.center.y)
        }, completion: nil)
}

override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
 let location = touch.locationInNode(self)
 if location.x < self.size.width/2 {
// left code
MoveLeft()
 }
 else {
  // right code
 }

}

}

Answer 1

touchesBegan 中的 touch 是什么？我认为你应该像这样使用 touches.first as! UITouch：

override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
    let location = (touches.first as! UITouch).locationInView(self.view)
    if location.x < self.view.bounds.size.width/2 { 
        // left code
        MoveLeft()
    } else {
        // right code
    }
}

将游戏屏幕分成左右触摸？

Splitting game screen into right and left touch?

gesture

uigesturerecognizer

ios

swift