Swift SpriteKit:TouchesMoved不'；当手指停止和相机停止时，t更新

我有一个游戏，玩家移动到触摸屏（如果触摸屏移动，则更新目的地）。在触摸未移动的情况下（手指停留在屏幕上，因此既不调用

touchMoved

也不调用

touchSedend

）相机移动之前，一切都会正常工作。玩家移动到与开始位置相关的正确位置，但与移动的相机无关。（我不想将位置保存在相机的参考框架中..如果这样做可行的话，因为在屏幕侧面点击一下就会移动pl （直到世界末日。）

以下是代码的基本内容：

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    for touch in touches {            
        location = touch.location(in: self)            
        player.goto = location
        player.moving = true                
}}

override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
    for touch in touches {       
        let location = touch.location(in: self)       
         player.goto = location
         player.moving = true 
}}

override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
    for touch in touches {
        let location = touch.location(in: self)
         player.goto = location
         player.moving = true            
}}   

override func update(_ currentTime: CFTimeInterval) {
    if player.position.x > w_screen/2 && player.position.x < (lab.size.width-w_screen/2) {
        cameranode.position.x = player.position.x
    }

    if player.moving == true {
        v = CGVector(dx: player.goto.x-player.position.x, dy: player.goto.y-player.position.y)
        d = sqrt(v.dx*v.dx + v.dy*v.dy)
        vel = 400*atan(d/20)/1.57
        if vel>1 { player.physicsBody!.velocity = CGVector(dx: v.dx*vel/d, dy: v.dy*vel/d) } else {
            player.moving = false
            player.physicsBody!.velocity = CGVector.zero
}}

override func touchsbegind（touch:Set，带有事件：UIEvent？）{
用于触摸{
位置=触摸。位置（in:self）
player.goto=位置
player.moving=true
}}
覆盖功能触摸移动（touchs:Set，带有事件：UIEvent？）{
用于触摸{
让位置=触摸。位置（in:self）
player.goto=位置
player.moving=true
}}
覆盖函数touchesend（touchs:Set，带有事件：UIEvent？）{
接触{
让位置=触摸。位置（in:self）
player.goto=位置
player.moving=true
}}   
覆盖函数更新（currentTime:CFTimeInterval）{
如果player.position.x>w_-screen/2和&player.position.x<（lab.size.width-w_-screen/2）{
cameranode.position.x=player.position.x
}
如果player.moving==true{
v=CGVector（dx:player.goto.x-player.position.x，dy:player.goto.y-player.position.y）
d=sqrt（v.dx*v.dx+v.dy*v.dy）
标高=400*atan（d/20）/1.57
如果vel>1{player.physicsBody！.velocity=CGVector（dx:v.dx*vel/d，dy:v.dy*vel/d）}else{
player.moving=false
player.physicsBody！.velocity=CGVector.zero
}}

如果player.position.x>w_screen/2和player.position.x

{
if player.position.x > w_screen/2 && player.position.x < (lab.size.width-w_screen/2) {
        cameranode.position.x = player.position.x
    }

cameranode.position.x=player.position.x
}

这就是为什么相机没有移动到你想要的地方，你正在移动你的相机到player.position.x，但是你永远不会更新你的goto位置

只需考虑相机的移动量，并相应地调整goto

if player.position.x > w_screen/2 && player.position.x < (lab.size.width-w_screen/2) {

        let camShiftX = player.position.x - cameranode.position.x
        let camShiftY = player.position.y - cameranode.position.y

        cameranode.position.x = player.position.x
        player.goto.x += camShiftX
        player.goto.y += camShiftY

    }

if player.position.x>w_-screen/2和&player.position.x<（lab.size.width-w_-screen/2）{
让camShiftX=player.position.x-cameranode.position.x
让camShiftY=player.position.y-cameranode.position.y
cameranode.position.x=player.position.x
player.goto.x+=camShiftX
player.goto.y+=camShiftY
}