How do I detect if an SKSpriteNode has been touched

First set the name property of the SKSpriteNode to a string.

pineapple.name = "pineapple"pineapple.userInteractionEnabled = false

then in touchesBegan function in the Scene

override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {    let touch:UITouch = touches.anyObject()! as UITouch    let positionInScene = touch.locationInNode(self)    let touchedNode = self.nodeAtPoint(positionInScene)    if let name = touchedNode.name    {        if name == "pineapple"        {            print("Touched")        }    }}

This is one way to do it.
You can also subclass SKSpriteNode and override the touchesBegan inside it.

class TouchableSpriteNode : SKSpriteNode{    override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {        print("touched")    }}

Then do

let pineapple = TouchableSpriteNode(imageNamed: "Pineappleimg")pineapple.userInteractionEnabled = truepineapple.position = CGPoint(x: CGRectGetMidX(self.frame) - 200, y: CGRectGetMidY(self.frame));self.addChild(pineapple)

If you are looking only for a few nodes that can be touched (e.g., the "Continue" or "Exit" labels in a game UI), this might be an alternative but very simple solution:

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {    let touch = touches.first!    if myNode.containsPoint(touch.locationInNode(self)) {        print("touched")    }}

Update for Swift Swift version 3.0.2 (swiftlang-800.0.63 clang-800.0.42.1) and XCode Version 8.2.1 (8C1002):

Value of type 'Set' has no member 'anyObject'

'locationInNode' has been renamed to 'location(in:)'

'nodeAtPoint' has been renamed to 'atPoint(_:)'

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {    for touch in touches {        let location = touch.location(in: self)        let node : SKNode = self.atPoint(location)        if node.name == "myNodeName" {            print("Hello")        }    }}