ポテトっぽいスティクの当たりくじゲーム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 sceneView : SCNView?
override func viewDidLoad() {
super.viewDidLoad()
setupScene()
createBox()
createSticks()
createCamera()
}
func setupScene() {
sceneView = {
let sv = SCNView(frame: self.view.bounds)
sv.backgroundColor = UIColor(hue: 0, saturation: 0.1, brightness: 1, alpha: 1)
sv.scene = SCNScene()
sv.autoenablesDefaultLighting = true
sv.allowsCameraControl = true
self.view.addSubview(sv)
return sv
}()
}
func createBox() {
let part = SCNTube(innerRadius: 9.5, outerRadius: 10, height: 20)
part.firstMaterial?.diffuse.contents = UIColor(hue: 0, saturation: 0.6, brightness: 1, alpha: 1)
let partNode = SCNNode(geometry: part)
partNode.transform = SCNMatrix4Scale(partNode.transform, 1.0, 1.0, 0.6)
self.sceneView?.scene?.rootNode.addChildNode(partNode)
partNode.physicsBody = SCNPhysicsBody.staticBody()
partNode.physicsBody?.physicsShape = SCNPhysicsShape(node: partNode, options: [SCNPhysicsShapeTypeKey : SCNPhysicsShapeTypeConcavePolyhedron, SCNPhysicsShapeScaleKey : NSValue(SCNVector3: SCNVector3(x: 1, y: 1, z: 0.6))])
let bottom = SCNCylinder(radius: 9.5, height: 0.5)
bottom.firstMaterial?.diffuse.contents = part.firstMaterial?.diffuse.contents
let bottomNode = SCNNode(geometry: bottom)
bottomNode.position = SCNVector3(x: 0, y: –9.5, z: 0)
bottomNode.transform = SCNMatrix4Scale(bottomNode.transform, 1.0, 1.0, 0.6)
self.sceneView?.scene?.rootNode.addChildNode(bottomNode)
bottomNode.physicsBody = SCNPhysicsBody.staticBody()
bottomNode.physicsBody?.physicsShape = SCNPhysicsShape(node: bottomNode, options: [SCNPhysicsShapeTypeKey : SCNPhysicsShapeTypeConcavePolyhedron, SCNPhysicsShapeScaleKey : NSValue(SCNVector3: SCNVector3(x: 1, y: 1, z: 0.6))])
}
func createSticks () {
let target = [Int](0...10)[Int(arc4random() % 10)]
[Int](0…10).each {i in
let stick = SCNBox(width: 1.6, height: 25, length: 1.6, chamferRadius: 0.1)
stick.firstMaterial?.diffuse.contents = UIColor(hue: 0.14, saturation: 0.7, brightness: 0.9, alpha: 1)
let stickNode = SCNNode(geometry: stick)
stickNode.name = “stick \(i)“
stickNode.position = SCNVector3(x: 8 – Float(i) * 1.6 , y: 5, z: 0)
self.sceneView?.scene?.rootNode.addChildNode(stickNode)
stickNode.physicsBody = SCNPhysicsBody.dynamicBody()
stickNode.physicsBody?.physicsShape = SCNPhysicsShape(geometry: stick, options: nil)
return stickNode
}
.filter {$0.name == “stick \(target)“}
.map { j -> Void in
let mark = SCNBox(width: 1.8, height: 3, length: 1.8, chamferRadius: 0.12)
mark.firstMaterial?.diffuse.contents = UIColor(hue: 0, saturation: 0.8, brightness: 0.6, alpha: 1)
let markNode = SCNNode(geometry: mark)
markNode.position = SCNVector3(x: 0, y: –10, z: 0)
j.addChildNode(markNode)
}
}
func createCamera() {
let camera = SCNNode()
camera.camera = SCNCamera()
camera.position = SCNVector3(x: 0, y: 30, z: 70)
camera.rotation = SCNVector4(x: 1, y: 0, z: 0, w: –0.4)
self.sceneView?.scene?.rootNode.addChildNode(camera)
}
override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
let p = touches.anyObject()!.locationInView(self.sceneView)
if let hit = self.sceneView?.hitTest(p, options: [SCNHitTestSortResultsKey : true])?.first as? SCNHitTestResult {
hit.node.physicsBody?.applyForce(SCNVector3(x: 0, y: 30, z: 0), impulse: true)
}
}
}
extension Array {
func each( doit:(T) -> AnyObject) -> [AnyObject] {
var after = [AnyObject]()
for i in self {
let res : AnyObject = doit(i)
after.append(res)
}
return after
}
}