Adding a spark particle sprite inside a view contr

问题:

I created an .sks particle emitter based on the spark template. My app is a normal app (not a game). When a user clicks a button, I have a new View controller that shows modally over fullscreen so that I can blur the background.

In this modal, I created a view and gave it a class of SCNView see image below:

How can I load the particle .sks file to do the animation on that viewController on the Particles view?

Update How to load a SceneKit particle systems in view controller?

回答1:

As mentioned by @mnuages, you can use .scnp file instead of .sks, which is a SceneKit Particle System.

So the steps are:

1. Create a SceneKit Particle System, I called it ConfettiSceneKitParticleSystem.scnp
2. Then in your art-board, select the view and select the class SCNView for it like in the printscreen of the question

3. In your UIViewController:

   class SomeVC: UIViewController {

   @IBOutlet weak var particles: SCNView!
   
   override func viewDidLoad() {
       super.viewDidLoad()
   
       let scene = SCNScene()        
       let particlesNode = SCNNode()
       let particleSystem = SCNParticleSystem(named: "ConfettiSceneKitParticleSystem", inDirectory: "")
       particlesNode.addParticleSystem(particleSystem!)
       scene.rootNode.addChildNode(particlesNode)
       particles.scene = scene
   }
   

   }

Et Voila...you have you animation :)

回答2:

.sks files are SpriteKit particle systems. You can also create SceneKit particle systems in Xcode, they are .scnp files.

A .scnp file is basically an archived SCNParticleSystem that you can load with NSKeyedUnarchiver and add to your scene using -addParticleSystem:withTransform:.