如何触摸并按住屏幕左侧和右侧来移动图像？ -迅捷

Question

I need help with the movement in Swift. I have a SKSpriteNode and I need help with touch and drag movement left or right to move and the SKSpriteNode . But only the left and right. When I click on the other side than the x position of the picture is to just run over smoothly. Could anyone help how to do it? Thanks.

import SpriteKit

class PlayScene: SKScene {

    let rocket = SKSpriteNode(imageNamed: "rocket")

    override func didMoveToView(view: SKView) {
        rocket.position = CGPoint(x: self.frame.width/2, y: self.frame.height * 0.8)
        self.addChild(rocket)
    }
}

override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
    for touch: AnyObject in touches {
        let location = touch.locationInNode(self)
        rocket.position = CGPoint(x: location.x, y: self.frame.height * 0.8)
    }
}

Answer 1

In this, the rocket animates for 1 second to the location of the touch and then moves with the touch if the user moves their finger.

class GameScene: SKScene {
let rocket = SKSpriteNode(imageNamed: "rocket")
override func didMoveToView(view: SKView) {
    rocket.position = CGPoint(x: self.frame.width/2, y: self.frame.height * 0.8)
    self.addChild(rocket)
}
override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
    for touch in touches {
        let location = touch.locationInNode(self)
        rocket.position = location
    }
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    for touch in touches {
        let location = touch.locationInNode(self)
        let moveAction = SKAction.moveTo(location, duration: 1/*Or as long as you want it to move*/)
        rocket.runAction(moveAction)
    }
}
}

Hope this helps.