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swiftsprite-kitskspritenodeuser-data

get userData of SKSpriteNode using the scene editor

I set the userData of my SKSpriteNode in the scene editor:

enter image description here

Then I tried to get it, using:

let sprite:SKSpriteNode = self.childNode(withName: "sprite") as? SKSpriteNode
let numero:Int = sprite.userdata?.valueForKey("numero") as! Int

But I got nil value : "fatal error: unexpectedly found nil while unwrapping an Optional value"

I also tried to init the userData with:

sprite.userData? = NSMutableDictionary()

But same result...

Solution

  • Probably also your sprite is nil:

    try to search your sprite with the optional binding (if let) and the "//" before sprite.

    if let sprite = self.childNode(withName: "//sprite") as? SKSpriteNode {
       let numero:Int = sprite.userdata?.valueForKey("numero") as! Int
} else {
   print("I cannot find sprite..")
}

    It performs a recursive search from its current position. Check the API reference here.