Programmatic particle systems

Hi team , I made some adjustments to update xblaster mini game to swift 2.0 , but I’m still having one error like…

I don’t understand why this message occours

In Swift 2.0 that would be written as…

func starfieldEmitterNode(speed speed: CGFloat, lifetime: CGFloat, scale: CGFloat, birthRate: CGFloat) -> SKEmitterNode {
}

Alternatively you could incorporate it into the name.

func starfieldEmitterNodeWithSpeed(speed: CGFloat, lifetime: CGFloat, scale: CGFloat, birthRate: CGFloat) -> SKEmitterNode {
}

Thanks ! Works fine …