MyViewController.swift

import Foundation
import UIKit
import SceneKit
import QuartzCore

class MyViewController : UIViewController
{
    override func viewDidLoad()
    {
        super.viewDidLoad()
        
        // Create a SceneKit view
        let skView = SCNView(frame:CGRectMake(0, 0, 960, 480), options:nil)
        skView.backgroundColor = UIColor.grayColor()
        skView.preferredFramesPerSecond = 60
        
        // Create a SceneKit scene
        let scene = SCNScene()
        skView.scene = scene
        
        // Create a camera
        let cameraNode = SCNNode()
        cameraNode.camera = SCNCamera()
        cameraNode.position = SCNVector3Make(0, 0, 30)
        cameraNode.transform = SCNMatrix4Rotate(cameraNode.transform, 3.14159265358979323846264338327950288 / 7.0, 1, 0, 0)
        scene.rootNode.addChildNode(cameraNode)
        
        // Create a spotlight
        let spotLight = SCNLight()
        spotLight.type = SCNLightTypeSpot
        spotLight.color = UIColor.redColor()
        
        let spotLightNode = SCNNode()
        spotLightNode.light = spotLight
        spotLightNode.position = SCNVector3Make(-2, 1, 0)
        
        cameraNode.addChildNode(spotLightNode)
        
        // A square box
        let boxSide = 15.0
        let box = SCNBox(width: boxSide, height: boxSide, length: boxSide, chamferRadius: 0)
        
        let boxNode = SCNNode(geometry: box)
        boxNode.transform = SCNMatrix4Rotate(boxNode.transform, 1.57079632679489661923132169163975144 / 3.0, 0, 1, 0)
        scene.rootNode.addChildNode(boxNode)
        
        self.view = skView;
        
        // Rotate the box
        let boxRotationAnimation = CABasicAnimation(keyPath: "transform")
        boxRotationAnimation.toValue = NSValue(SCNMatrix4: SCNMatrix4Rotate(boxNode.transform, 3.14159265358979323846264338327950288, 1, 1, 0))
        
        boxRotationAnimation.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionLinear)
        boxRotationAnimation.repeatCount = -1
        boxRotationAnimation.duration = 2.0
        
        boxNode.addAnimation(boxRotationAnimation, forKey: "RotateTheBox")
        
        println("Started running game")
    }
    
    override func shouldAutorotate() -> Bool
    {
        return true
    }
    
    override func supportedInterfaceOrientations() -> Int
    {
        return Int(UIInterfaceOrientationMask.Landscape.toRaw())
    }
    
    override func didReceiveMemoryWarning()
    {
        super.didReceiveMemoryWarning()
    }
}