パネルをタッチして箱を積んでいくiPhoneアプリのサンプルコードを描いてみます。
import UIKit
import SceneKit
class ViewController: UIViewController {
weak var scene : SCNScene?
weak var selected : SCNNode?
override func viewDidLoad() {
super.viewDidLoad()
self.setupScene()
self.createBox()
self.createCamera()
self.createLight()
self.setupButton()
}
func setupScene() {
let h = CGRectGetMidY(self.view.bounds)
var sceneView = SCNView(frame: CGRectMake(0, 0, h, h))
sceneView.backgroundColor = UIColor(hue: 0.25, saturation: 0.1, brightness: 0.8, alpha: 1)
sceneView.center = CGPointMake(CGRectGetMidX(self.view.bounds), h/2.0)
sceneView.scene = SCNScene()
self.view.addSubview(sceneView)
self.scene = sceneView.scene
}
func createBox() {
var table = SCNBox(width: 18, height: 2, length: 18, chamferRadius: 0)
table.firstMaterial?.diffuse.contents = UIColor(hue: 0.5, saturation: 0.2, brightness: 1, alpha: 1)
var tableNode = SCNNode(geometry: table)
tableNode.name = “table”
self.scene?.rootNode.addChildNode(tableNode)
for i in 1…9 {
var box = SCNBox(width: 6, height: 6, length: 6, chamferRadius: 1)
box.firstMaterial?.diffuse.contents = UIColor(hue: CGFloat(i) * 0.1, saturation: 0.4, brightness: 1, alpha: 1)
var boxNode = SCNNode(geometry: box)
boxNode.name = “box”
let x : Float = Float((i – 1) % 3) * 6 – 6.0
let z : Float = Float((i – 1) / 3) * 6 – 6.0
boxNode.position = SCNVector3(x: x, y: 4, z: z)
self.scene?.rootNode.addChildNode(boxNode)
}
}
func setupButton() {
self.view.backgroundColor = UIColor(hue: 0.8, saturation: 0.2, brightness: 1, alpha: 1)
let h = CGRectGetMidY(self.view.bounds)
let w = CGRectGetMaxX(self.view.bounds)
for i in 0..<9 {
let x = CGFloat(i % 3) * w / 3.0
let y = CGFloat(i / 3) * h / 3.0 + h
let btn = UIButton.buttonWithType(.System) as UIButton
btn.titleLabel?.font = UIFont.boldSystemFontOfSize(40)
btn.frame = CGRectMake(x, y, w/3.0, w/3.0)
btn.backgroundColor = UIColor(hue: 0.3, saturation: 0.2, brightness: 1, alpha: 1)
btn.setTitle(“\(i + 1)“, forState: .Normal)
self.view.addSubview(btn)
btn.addTarget(self, action: “tapButton:”, forControlEvents: .TouchUpInside)
}
}
func tapButton(btn : UIButton) {
var t : NSString? = btn.titleLabel?.text
var num = t!.intValue – 1
var x : Float = Float(num % 3) * 6.0 – 6.0
var z : Float = Float(num / 3) * 6.0 – 6.0
var from = SCNVector3(x: x, y: 100, z: z)
var to = SCNVector3(x: x, y: –10, z: z)
var hits = self.scene?.rootNode.hitTestWithSegmentFromPoint(from, toPoint: to, options:[SCNHitTestSortResultsKey:true])
var hit = (hits!.first as SCNHitTestResult).node as SCNNode
if self.selected == nil {
if hit.name == “box” {
SCNTransaction.begin()
SCNTransaction.setAnimationDuration(0.5)
hit.transform = SCNMatrix4Translate(hit.transform, 0, 8, 0)
SCNTransaction.commit()
self.selected = hit
}
} else {
var h : Float = 1.0
if hit.name == “box” {
h = hit.position.y + 3.0
}
SCNTransaction.begin()
SCNTransaction.setAnimationDuration(0.5)
self.selected?.transform = SCNMatrix4MakeTranslation(x, h + 8.0, z)
SCNTransaction.setCompletionBlock({ () -> Void in
SCNTransaction.begin()
SCNTransaction.setAnimationDuration(0.5)
self.selected?.transform = SCNMatrix4MakeTranslation(x, h + 3.0, z)
self.selected = nil
SCNTransaction.commit()
})
SCNTransaction.commit()
}
}
func createCamera() {
var camera = SCNNode()
camera.camera = SCNCamera()
camera.position = SCNVector3(x: 0, y: 22, z: 50)
self.scene?.rootNode.addChildNode(camera)
}
func createLight() {
var light = SCNLight()
light.type = SCNLightTypeOmni
var lightNode = SCNNode()
lightNode.position = SCNVector3(x: 5, y: 10, z: 30)
self.scene?.rootNode.addChildNode(lightNode)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}