Initial Commit

Waveform/GameViewController.swift

@@ -0,0 +1,105 @@
+//
+//  GameViewController.swift
+//  Waveform
+//
+//  Created by Eryn Wells on 9/16/18.
+//  Copyright © 2018 Eryn Wells. All rights reserved.
+//
+
+import SceneKit
+import QuartzCore
+
+class GameViewController: NSViewController {
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        // create a new scene
+        let scene = SCNScene(named: "art.scnassets/ship.scn")!
+        
+        // create and add a camera to the scene
+        let cameraNode = SCNNode()
+        cameraNode.camera = SCNCamera()
+        scene.rootNode.addChildNode(cameraNode)
+        
+        // place the camera
+        cameraNode.position = SCNVector3(x: 0, y: 0, z: 15)
+        
+        // create and add a light to the scene
+        let lightNode = SCNNode()
+        lightNode.light = SCNLight()
+        lightNode.light!.type = .omni
+        lightNode.position = SCNVector3(x: 0, y: 10, z: 10)
+        scene.rootNode.addChildNode(lightNode)
+        
+        // create and add an ambient light to the scene
+        let ambientLightNode = SCNNode()
+        ambientLightNode.light = SCNLight()
+        ambientLightNode.light!.type = .ambient
+        ambientLightNode.light!.color = NSColor.darkGray
+        scene.rootNode.addChildNode(ambientLightNode)
+        
+        // retrieve the ship node
+        let ship = scene.rootNode.childNode(withName: "ship", recursively: true)!
+        
+        // animate the 3d object
+        ship.runAction(SCNAction.repeatForever(SCNAction.rotateBy(x: 0, y: 2, z: 0, duration: 1)))
+        
+        // retrieve the SCNView
+        let scnView = self.view as! SCNView
+        
+        // set the scene to the view
+        scnView.scene = scene
+        
+        // allows the user to manipulate the camera
+        scnView.allowsCameraControl = true
+        
+        // show statistics such as fps and timing information
+        scnView.showsStatistics = true
+        
+        // configure the view
+        scnView.backgroundColor = NSColor.black
+        
+        // Add a click gesture recognizer
+        let clickGesture = NSClickGestureRecognizer(target: self, action: #selector(handleClick(_:)))
+        var gestureRecognizers = scnView.gestureRecognizers
+        gestureRecognizers.insert(clickGesture, at: 0)
+        scnView.gestureRecognizers = gestureRecognizers
+    }
+    
+    @objc
+    func handleClick(_ gestureRecognizer: NSGestureRecognizer) {
+        // retrieve the SCNView
+        let scnView = self.view as! SCNView
+        
+        // check what nodes are clicked
+        let p = gestureRecognizer.location(in: scnView)
+        let hitResults = scnView.hitTest(p, options: [:])
+        // check that we clicked on at least one object
+        if hitResults.count > 0 {
+            // retrieved the first clicked object
+            let result = hitResults[0]
+            
+            // get its material
+            let material = result.node.geometry!.firstMaterial!
+            
+            // highlight it
+            SCNTransaction.begin()
+            SCNTransaction.animationDuration = 0.5
+            
+            // on completion - unhighlight
+            SCNTransaction.completionBlock = {
+                SCNTransaction.begin()
+                SCNTransaction.animationDuration = 0.5
+                
+                material.emission.contents = NSColor.black
+                
+                SCNTransaction.commit()
+            }
+            
+            material.emission.contents = NSColor.red
+            
+            SCNTransaction.commit()
+        }
+    }
+}