无法使粒子按照spriteKit

Question

的路径这是在XCode中SKEmitter编辑器（我想做到这一点在iPhone上）动画：

这是iPhone上的动画（我不希望这个动画）：

使用此代码：

let sparkEmmiter = SKEmitterNode(fileNamed: "fireflies.sks") 
    self.addChild(sparkEmmiter) // self is a SKScene 

    var circle: CGPathRef? = nil 
    circle = CGPathCreateWithEllipseInRect(CGRectMake(400, 200, 200, 200), nil) 
    let followTrack = SKAction.followPath(circle!, asOffset: false, orientToPath: true, duration: 3.0) 
    let followTrackForever = SKAction.repeatActionForever(followTrack) 
    //sparkEmmiter.runAction(followTrackForever) 
    sparkEmmiter.particleAction = followTrackForever; 

这是发射器设置：

我参照本question尝试都runAction和particleAction，但我希望它不工作...

- --------------- 更新 -------------------------------- --------------

试过hamobi提到的解决方案（仍然不起作用）：

//If I were you: 
    // 1) I'd make a sprite and 
    let texture = SKTexture(imageNamed: "spark") 
    let mySprite = SKSpriteNode(texture: texture) 
    self.addChild(mySprite) 

    // 2) add the emitter in your first example as a child. 
    let sparkEmmiter = SKEmitterNode(fileNamed: "fireflies.sks") 
    mySprite.addChild(sparkEmmiter) 

    // 3) I'd set the emitters targetNode to the scene. 
    sparkEmmiter.targetNode = self 

    // 4) Then I'd just animate the sprite itself in an arc. 
    var circle: CGPathRef? = nil 
    circle = CGPathCreateWithEllipseInRect(CGRectMake(400, 200, 200, 200), nil) 
    let followTrack = SKAction.followPath(circle!, asOffset: false, orientToPath: true, duration: 3.0) 
    let followTrackForever = SKAction.repeatActionForever(followTrack) 
    //sparkEmmiter.runAction(followTrackForever) 
    sparkEmmiter.particleAction = followTrackForever; 

----------------- 更新2 ------------------ ----------------------------

Got it！ THX到hamobi：d是这样的结果：d：d

Answer 1

如果我是你，我会成为一个精灵在你的第一个例子中添加的发射器作为一个孩子。我将发射器targetNode设置为场景。然后，我只需要将精灵本身制作成弧形。

编辑：

好，所以你失踪的主要事情是，你应该忘记使用particleAction。使mySprite运行followTrackForever操作。我颗粒的

继承人我的代码

//If I were you: 
// 1) I'd make a sprite and 
let texture = SKTexture(imageNamed: "spark") 
let mySprite = SKSpriteNode(texture: texture) 
mySprite.position = CGPoint(x: self.size.width/2, y: self.size.height/2) 
self.addChild(mySprite) 

// 2) add the emitter in your first example as a child. 
let sparkEmmiter = SKEmitterNode(fileNamed: "fireflies.sks") 
mySprite.addChild(sparkEmmiter) 

// 3) I'd set the emitters targetNode to the scene. 
sparkEmmiter.targetNode = self 

// 4) Then I'd just animate the sprite itself in an arc. 
var circle: CGPathRef? = nil 
circle = CGPathCreateWithEllipseInRect(CGRectMake(100, 200, 200, 200), nil) 
let followTrack = SKAction.followPath(circle!, asOffset: false, orientToPath: true, duration: 3.0) 
let followTrackForever = SKAction.repeatActionForever(followTrack) 
mySprite.runAction(followTrackForever) 

截图

我在行动