swift - Joystick+Firebutton 不能一起工作

Question

我正在制作一个应用程序，您可以在其中使用操纵杆控制飞船的运动，并使用射击按钮发射子弹。这两个功能单独使用效果很好，但如果我在用操纵杆移动飞船时点击射击按钮，操纵杆就会变得无法控制。所以我需要的是当我点击屏幕上的任意位置时操纵杆正常工作。

import SpriteKit
import GameplayKit

class GameScene: SKScene {

    let player=SKSpriteNode(imageNamed: "prez")
    let joystickback=SKSpriteNode(imageNamed: "0")
    let joystickbutton=SKSpriteNode(imageNamed: "1")
    let shootbutton=SKSpriteNode(imageNamed: "1")
    var joystickinuse=false
    var velocityX : CGFloat=0.0
    var velocityY : CGFloat=0.0

    override func didMove(to view: SKView) {

        let background=SKSpriteNode(imageNamed: "back")
        background.size=self.size
        background.position=CGPoint(x: self.size.width/2, y: self.size.height/2)
        background.zPosition=0
      self.addChild(background)
        //joystick back
        self.joystickback.position=CGPoint(x: (self.view?.frame.width)!*0.1, y: (self.view?.frame.height)!/5)
        self.joystickback.zPosition=1
        //jostick butt
        self.joystickbutton.position=CGPoint(x: (self.view?.frame.width)!*0.1, y: (self.view?.frame.height)!/5)
        self.joystickbutton.zPosition=2
        //shootingbutton
        self.shootbutton.position=CGPoint(x: (self.view?.frame.width)!*0.9, y: (self.view?.frame.height)!/5)
        self.shootbutton.zPosition=2
        self.shootbutton.setScale(0.4)

       self.ship.position=CGPoint(x: (self.view?.frame.width)!/2, y: (self.view?.frame.height)!/2)
        self.ship.setScale(0.2)
        self.ship.zPosition=3
        self.joystickback.setScale(0.5)
        self.joystickbutton.setScale(0.5)
        self.addChild(shootbutton)
        self.addChild(ship)
        self.addChild(joystickback)
        self.addChild(joystickbutton)
    }

    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        for t in touches{
            let location=t.location(in: self)

            if (joystickbutton.frame.contains(location)){
                joystickinuse=true
            }
        }
    }

    func touchMoved(touch:UITouch){
        let location=touch.location(in: self)
        if (joystickinuse){
            let vecktor=CGVector(dx: location.x-joystickback.position.x, dy: location.y-joystickback.position.y)
            let angle=atan2(vecktor.dy, vecktor.dx)
            let DistanceFromCenter=CGFloat(joystickback.frame.size.height/2)
            let DistanceX=CGFloat(sin(angle-CGFloat(M_PI)/2)*DistanceFromCenter)
           let DistanceY=CGFloat(cos(angle-CGFloat(M_PI)/2)*DistanceFromCenter)
            if(joystickback.frame.contains(location)){
                joystickbutton.position=location
            }
            else{
                joystickbutton.position=CGPoint(x: joystickback.position.x-DistanceX, y: joystickback.position.y+DistanceY)
            }
            velocityX=(joystickbutton.position.x-joystickback.position.x)/10
            velocityY=(joystickbutton.position.y-joystickback.position.y)/10
        }
    }

    func firebullet(){
        let bullet=SKSpriteNode(imageNamed: "rocket")
        bullet.position=urhajo.position
        bullet.setScale(0.2)
        bullet.zPosition=1
        self.addChild(bullet)
        let movebullet=SKAction.moveTo(x: self.size.width+bullet.size.width, duration: 1)
        let deletebullet=SKAction.removeFromParent()
        let bulletsequence=SKAction.sequence([movebullet,deletebullet])
        bullet.run(bulletsequence)  
    }

    override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
        for t in touches{
            self.touchMoved(touch: t)
        }
    }

    override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
        if(joystickinuse){
            movementOver()
        }
    }

    override func touchesCancelled(_ touches: Set<UITouch>, with event: UIEvent?) {
        if(joystickinuse){
            movementOver()
        }
    }

    func movementOver(){
        let moveBack=SKAction.move(to: CGPoint(x: joystickback.position.x,y: joystickback.position.y), duration: TimeInterval(floatLiteral:0.1))
        moveBack.timingMode = .linear
        joystickbutton.run(moveBack)
        joystickinuse=false
        velocityY=0
        velocityX=0
    }

  override func update(_ currentTime: TimeInterval) {
        if(ship.position.x>=(self.view?.frame.width)!+urhajo.frame.width/2){


        }
        else{ self.ship.position.x+=velocityX

        }

         self.ship.position.y+=velocityY
    }
}

Answer 1

尝试设置这是你的场景代码

func didMove(to view: SKView) {

    self.view!.isMultipleTouchEnabled = true
}