{"id":3166,"date":"2014-10-10T00:01:40","date_gmt":"2014-10-09T15:01:40","guid":{"rendered":"http:\/\/lepetit-prince.net\/ios\/?p=3166"},"modified":"2014-10-10T00:01:40","modified_gmt":"2014-10-09T15:01:40","slug":"%e7%8e%89%e5%85%a5%e3%82%8c","status":"publish","type":"post","link":"https:\/\/lepetit-prince.net\/ios\/?p=3166","title":{"rendered":"\u7389\u5165\u308c"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/-RT1LSaNGzok\/VDainQ9AXgI\/AAAAAAAACw0\/XIWQtM_y_qQ\/s288\/Screen%2520Shot%25202014-10-09%2520at%252011.58.16%2520PM.png\" width=\"288\" height=\"179\" alt=\"iPhone\u7389\u5165\u308c\" class=\"alignnone\" \/><\/p>\n<p><\/p>\n<p>\n\u30ab\u30c3\u30d7\u306b\u5411\u304b\u3063\u3066\u7389\u3092\u3053\u308d\u304c\u3059iPhone\u30a2\u30d7\u30ea\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u63cf\u3044\u3066\u307f\u307e\u3059\u3002\n<\/p>\n<p>\n<iframe loading=\"lazy\" width=\"467\" height=\"350\" src=\"https:\/\/www.youtube.com\/embed\/3qIKV603QDg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span style=\"color: #bb2ca2\">import<\/span> UIKit<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span style=\"color: #bb2ca2\">import<\/span> SceneKit<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span style=\"color: #bb2ca2\">class<\/span> ViewController: <span style=\"color: #703daa\">UIViewController<\/span> {<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">weak<\/span> <span style=\"color: #bb2ca2\">var<\/span> scene : <span style=\"color: #703daa\">SCNScene<\/span>?<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">override<\/span> <span style=\"color: #bb2ca2\">func<\/span> viewDidLoad() {<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">super<\/span>.<span style=\"color: #3d1d81\">viewDidLoad<\/span>()<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #31595d\">setupScene<\/span>()<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #31595d\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><\/span><span style=\"color: #bb2ca2\">self<\/span><span style=\"color: #000000\">.<\/span>createPlateWithHole<span style=\"color: #000000\">()<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #31595d\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><\/span><span style=\"color: #bb2ca2\">self<\/span><span style=\"color: #000000\">.<\/span>createCamera<span style=\"color: #000000\">()<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #31595d\">createLight<\/span>()<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span>}<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">func<\/span> setupScene() {<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> w = <span style=\"color: #3d1d81\">CGRectGetMaxX<\/span>(<span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #703daa\">view<\/span>.<span style=\"color: #703daa\">bounds<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> sceneView = <span style=\"color: #703daa\">SCNView<\/span>(frame: <span style=\"color: #703daa\">CGRect<\/span>(x: <span style=\"color: #272ad8\">0<\/span>, y: <span style=\"color: #272ad8\">0<\/span>, width: w, height: w))<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>sceneView.<span style=\"color: #703daa\">center<\/span> = <span style=\"color: #703daa\">CGPoint<\/span>(x: <span style=\"color: #3d1d81\">CGRectGetMidX<\/span>(<span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #703daa\">view<\/span>.<span style=\"color: #703daa\">bounds<\/span>), y: <span style=\"color: #3d1d81\">CGRectGetMidY<\/span>(<span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #703daa\">view<\/span>.<span style=\"color: #703daa\">bounds<\/span>))<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>sceneView.<span style=\"color: #703daa\">backgroundColor<\/span> = <span style=\"color: #703daa\">UIColor<\/span>(hue: <span style=\"color: #272ad8\">0.3<\/span>, saturation: <span style=\"color: #272ad8\">0.5<\/span>, brightness: <span style=\"color: #272ad8\">0.8<\/span>, alpha: <span style=\"color: #272ad8\">1<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>sceneView.<span style=\"color: #703daa\">scene<\/span> = <span style=\"color: #703daa\">SCNScene<\/span>()<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #703daa\">view<\/span>.<span style=\"color: #3d1d81\">addSubview<\/span>(sceneView)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0 \u00a0 \u00a0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #4f8187\">scene<\/span> = sceneView.<span style=\"color: #703daa\">scene<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #703daa\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><\/span><span style=\"color: #bb2ca2\">self<\/span><span style=\"color: #000000\">.<\/span><span style=\"color: #4f8187\">scene<\/span><span style=\"color: #000000\">?.<\/span>physicsWorld<span style=\"color: #000000\">.<\/span>speed<span style=\"color: #000000\"> = <\/span><span style=\"color: #272ad8\">2.0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span>}<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">func<\/span> createPlateWithHole() {<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0 \u00a0 \u00a0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> plate = <span style=\"color: #703daa\">SCNBox<\/span>(width: <span style=\"color: #272ad8\">20<\/span>, height: <span style=\"color: #272ad8\">0.5<\/span>, length: <span style=\"color: #272ad8\">30<\/span>, chamferRadius: <span style=\"color: #272ad8\">1<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>plate.<span style=\"color: #703daa\">firstMaterial<\/span>?.<span style=\"color: #703daa\">diffuse<\/span>.<span style=\"color: #703daa\">contents<\/span> = <span style=\"color: #703daa\">UIColor<\/span>(hue: <span style=\"color: #272ad8\">0.9<\/span>, saturation: <span style=\"color: #272ad8\">0.5<\/span>, brightness: <span style=\"color: #272ad8\">1<\/span>, alpha: <span style=\"color: #272ad8\">1<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> plateNode = <span style=\"color: #703daa\">SCNNode<\/span>(geometry: plate)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>plateNode.<span style=\"color: #703daa\">position<\/span> = <span style=\"color: #703daa\">SCNVector3<\/span>(x: <span style=\"color: #272ad8\">0<\/span>, y: <span style=\"color: #272ad8\">0<\/span>, z: &#8211;<span style=\"color: #272ad8\">10<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #703daa\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>plateNode.<\/span>physicsBody<span style=\"color: #000000\"> = <\/span>SCNPhysicsBody<span style=\"color: #000000\">.<\/span><span style=\"color: #3d1d81\">staticBody<\/span><span style=\"color: #000000\">()<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #4f8187\">scene<\/span>?.<span style=\"color: #703daa\">rootNode<\/span>.<span style=\"color: #3d1d81\">addChildNode<\/span>(plateNode)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0 \u00a0 \u00a0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> partsA = <span style=\"color: #703daa\">SCNBox<\/span>(width: <span style=\"color: #272ad8\">7<\/span>, height: <span style=\"color: #272ad8\">0.5<\/span>, length: <span style=\"color: #272ad8\">10<\/span>, chamferRadius: <span style=\"color: #272ad8\">1<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> partsANode = <span style=\"color: #703daa\">SCNNode<\/span>(geometry: partsA)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>partsANode.<span style=\"color: #703daa\">position<\/span> = <span style=\"color: #703daa\">SCNVector3<\/span>(x: <span style=\"color: #272ad8\">6.5<\/span>, y: <span style=\"color: #272ad8\">0<\/span>, z: &#8211;<span style=\"color: #272ad8\">30<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>partsANode.<span style=\"color: #703daa\">physicsBody<\/span> = <span style=\"color: #703daa\">SCNPhysicsBody<\/span>.<span style=\"color: #3d1d81\">staticBody<\/span>()<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #4f8187\">scene<\/span>?.<span style=\"color: #703daa\">rootNode<\/span>.<span style=\"color: #3d1d81\">addChildNode<\/span>(partsANode)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0 \u00a0 \u00a0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> partsB = <span style=\"color: #703daa\">SCNBox<\/span>(width: <span style=\"color: #272ad8\">7<\/span>, height: <span style=\"color: #272ad8\">0.5<\/span>, length: <span style=\"color: #272ad8\">10<\/span>, chamferRadius: <span style=\"color: #272ad8\">1<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> partsBNode = <span style=\"color: #703daa\">SCNNode<\/span>(geometry: partsB)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>partsBNode.<span style=\"color: #703daa\">position<\/span> = <span style=\"color: #703daa\">SCNVector3<\/span>(x: &#8211;<span style=\"color: #272ad8\">6.5<\/span>, y: <span style=\"color: #272ad8\">0<\/span>, z: &#8211;<span style=\"color: #272ad8\">30<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>partsBNode.<span style=\"color: #703daa\">physicsBody<\/span> = <span style=\"color: #703daa\">SCNPhysicsBody<\/span>.<span style=\"color: #3d1d81\">staticBody<\/span>()<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #4f8187\">scene<\/span>?.<span style=\"color: #703daa\">rootNode<\/span>.<span style=\"color: #3d1d81\">addChildNode<\/span>(partsBNode)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0 \u00a0 \u00a0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> hole = <span style=\"color: #703daa\">SCNTube<\/span>(innerRadius: <span style=\"color: #272ad8\">3<\/span>, outerRadius: <span style=\"color: #272ad8\">8<\/span>, height: <span style=\"color: #272ad8\">0.5<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> holeNode = <span style=\"color: #703daa\">SCNNode<\/span>(geometry: hole)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>holeNode.<span style=\"color: #703daa\">position<\/span> = <span style=\"color: #703daa\">SCNVector3<\/span>(x: <span style=\"color: #272ad8\">0<\/span>, y: <span style=\"color: #272ad8\">0<\/span>, z: &#8211;<span style=\"color: #272ad8\">30<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>holeNode.<span style=\"color: #703daa\">name<\/span> = <span style=\"color: #d12f1b\">&#8220;hole&#8221;<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #703daa\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>holeNode.<\/span>physicsBody<span style=\"color: #000000\"> = <\/span>SCNPhysicsBody<span style=\"color: #000000\">.<\/span><span style=\"color: #3d1d81\">staticBody<\/span><span style=\"color: #000000\">()<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #703daa\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>holeNode.<\/span>physicsBody<span style=\"color: #000000\">?.<\/span>physicsShape<span style=\"color: #000000\"> = <\/span>SCNPhysicsShape<span style=\"color: #000000\">(geometry: hole, options: [<\/span>SCNPhysicsShapeTypeKey<span style=\"color: #000000\">: <\/span>SCNPhysicsShapeTypeConcavePolyhedron<span style=\"color: #000000\">])<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #4f8187\">scene<\/span>?.<span style=\"color: #703daa\">rootNode<\/span>.<span style=\"color: #3d1d81\">addChildNode<\/span>(holeNode)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span>}<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">func<\/span> createCamera() {<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> camera = <span style=\"color: #703daa\">SCNNode<\/span>()<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>camera.<span style=\"color: #703daa\">camera<\/span> = <span style=\"color: #703daa\">SCNCamera<\/span>()<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>camera.<span style=\"color: #703daa\">position<\/span> = <span style=\"color: #703daa\">SCNVector3<\/span>(x: <span style=\"color: #272ad8\">0<\/span>, y: <span style=\"color: #272ad8\">20<\/span>, z: <span style=\"color: #272ad8\">30<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #4f8187\">scene<\/span>?.<span style=\"color: #703daa\">rootNode<\/span>.<span style=\"color: #3d1d81\">addChildNode<\/span>(camera)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0 \u00a0 \u00a0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>camera.<span style=\"color: #703daa\">constraints<\/span> = [<span style=\"color: #703daa\">SCNLookAtConstraint<\/span>(target: <span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #4f8187\">scene<\/span>!.<span style=\"color: #703daa\">rootNode<\/span>.<span style=\"color: #3d1d81\">childNodeWithName<\/span>(<span style=\"color: #d12f1b\">&#8220;hole&#8221;<\/span>, recursively: <span style=\"color: #bb2ca2\">false<\/span>)!)]<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span>}<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">func<\/span> createLight() {<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> light = <span style=\"color: #703daa\">SCNLight<\/span>()<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #703daa\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>light.<\/span>type<span style=\"color: #000000\"> = <\/span>SCNLightTypeOmni<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> lightNode = <span style=\"color: #703daa\">SCNNode<\/span>()<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>lightNode.<span style=\"color: #703daa\">light<\/span> = light;<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>lightNode.<span style=\"color: #703daa\">position<\/span> = <span style=\"color: #703daa\">SCNVector3<\/span>(x: <span style=\"color: #272ad8\">0<\/span>, y: <span style=\"color: #272ad8\">20<\/span>, z: <span style=\"color: #272ad8\">10<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #4f8187\">scene<\/span>?.<span style=\"color: #703daa\">rootNode<\/span>.<span style=\"color: #3d1d81\">addChildNode<\/span>(lightNode)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span>}<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">override<\/span> <span style=\"color: #bb2ca2\">func<\/span> touchesBegan(touches: <span style=\"color: #703daa\">NSSet<\/span>, withEvent event: <span style=\"color: #703daa\">UIEvent<\/span>) {<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> ball = <span style=\"color: #703daa\">SCNSphere<\/span>(radius: <span style=\"color: #272ad8\">1<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>ball.<span style=\"color: #703daa\">firstMaterial<\/span>?.<span style=\"color: #703daa\">diffuse<\/span>.<span style=\"color: #703daa\">contents<\/span> = <span style=\"color: #703daa\">UIColor<\/span>(hue: <span style=\"color: #272ad8\">0.7<\/span>, saturation: <span style=\"color: #272ad8\">0.7<\/span>, brightness: <span style=\"color: #272ad8\">1<\/span>, alpha: <span style=\"color: #272ad8\">1<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">var<\/span> ballNode = <span style=\"color: #703daa\">SCNNode<\/span>(geometry: ball)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #4f8187\">scene<\/span>?.<span style=\"color: #703daa\">rootNode<\/span>.<span style=\"color: #3d1d81\">addChildNode<\/span>(ballNode)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0 \u00a0 \u00a0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #703daa\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>ballNode.<\/span>physicsBody<span style=\"color: #000000\"> = <\/span>SCNPhysicsBody<span style=\"color: #000000\">.<\/span><span style=\"color: #3d1d81\">dynamicBody<\/span><span style=\"color: #000000\">()<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span>ballNode.<span style=\"color: #703daa\">physicsBody<\/span>?.<span style=\"color: #703daa\">velocity<\/span> = <span style=\"color: #703daa\">SCNVector3<\/span>(x: <span style=\"color: #272ad8\">0<\/span>, y: <span style=\"color: #272ad8\">10<\/span>, z: &#8211;<span style=\"color: #272ad8\">10<\/span>)<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span>}<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; min-height: 13.0px\"><span class=\"Apple-converted-space\">\u00a0\u00a0 \u00a0<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><span style=\"color: #bb2ca2\">override<\/span> <span style=\"color: #bb2ca2\">func<\/span> didReceiveMemoryWarning() {<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; 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