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