{"id":2077,"date":"2013-11-07T22:39:48","date_gmt":"2013-11-07T13:39:48","guid":{"rendered":"http:\/\/lepetit-prince.net\/ios\/?p=2077"},"modified":"2013-11-07T22:39:48","modified_gmt":"2013-11-07T13:39:48","slug":"%e3%83%8d%e3%82%b3%e3%81%ae%e3%81%97%e3%81%a3%e3%81%bd","status":"publish","type":"post","link":"https:\/\/lepetit-prince.net\/ios\/?p=2077","title":{"rendered":"\u30cd\u30b3\u306e\u3057\u3063\u307d"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" alt=\"iPhone\u306d\u3053\u306e\u3057\u3063\u307d\" src=\"https:\/\/lh4.googleusercontent.com\/-4tJk8CU22m8\/UnuXtZtzEyI\/AAAAAAAABP0\/7sZQ6LwrMIs\/s288\/Screen%2520Shot%25202013-11-07%2520at%252010.37.06%2520PM.png\" title=\"iPhone\u306d\u3053\u306e\u3057\u3063\u307d\" class=\"alignnone\" width=\"288\" height=\"247\" \/><\/p>\n<p><\/p>\n<p>\n\u30cd\u30b3\u306e\u3057\u3063\u307d\u3092\u3075\u308a\u3075\u308a\u3059\u308biPhone\u30a2\u30d7\u30ea\u306e\u30b5\u30f3\u30d7\u30eb\u3092\u63cf\u3044\u3066\u307f\u307e\u3059\u3002\u3057\u3063\u307d\u306f\u3001SpriteKit\u3092\u3064\u304b\u3063\u3066\u3001\u5c0f\u3055\u306a\u56db\u89d2\u3092Joint\u3067\u7e4b\u3044\u3060\u30ed\u30fc\u30d7\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002\n<\/p>\n<p><!--more--><\/p>\n<p><\/p>\n<p>\n\u52d5\u4f5c\u30a4\u30e1\u30fc\u30b8<br \/>\nXcode\u304b\u3089iOS7 iPhone Simulator\u3067\u52d5\u304b\u3059\u3068\u3053\u3093\u306a\u611f\u3058\u306b\u306a\u308a\u307e\u3059\u3002\n<\/p>\n<p>\n<iframe loading=\"lazy\" title=\"Today&#039;s iOS sample no.324 cat&#039;s tail\" width=\"620\" height=\"349\" src=\"https:\/\/www.youtube.com\/embed\/VAFrNnMMG68?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>\n\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\n<\/p>\n<p><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #d12f1b\"><span style=\"color: #78492a\">#import <\/span>&#8220;ViewController.h&#8221;<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #d12f1b\"><span style=\"color: #78492a\">#import <\/span>&lt;SpriteKit\/SpriteKit.h&gt;<\/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\">@interface<\/span> RopeScene : <span style=\"color: #703daa\">SKScene<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\"><span style=\"color: #bb2ca2\">@property<\/span> <span style=\"color: #bb2ca2\">BOOL<\/span> contentCreated;<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #bb2ca2\">@end<\/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; color: #78492a\">#define SPACE_BETWEEN_SEGMENTS <span style=\"color: #272ad8\">10<\/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; color: #bb2ca2\">@implementation<span style=\"color: #000000\"> RopeScene<\/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\">&#8211; (<span style=\"color: #bb2ca2\">void<\/span>)didMoveToView:(<span style=\"color: #703daa\">SKView<\/span> *)view<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\">{<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #4f8187\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><\/span><span style=\"color: #bb2ca2\">if<\/span><span style=\"color: #000000\"> (!<\/span><span style=\"color: #bb2ca2\">self<\/span><span style=\"color: #000000\">.<\/span>contentCreated<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>createSceneContents<span style=\"color: #000000\">];<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #4f8187\"><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>contentCreated<span style=\"color: #000000\"> = <\/span><span style=\"color: #bb2ca2\">YES<\/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 <\/span>}<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\">}<\/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; min-height: 13.0px\"><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\">&#8211; (<span style=\"color: #bb2ca2\">void<\/span>)createSceneContents<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\">{<\/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 <\/span><\/span><span style=\"color: #bb2ca2\">self<\/span><span style=\"color: #000000\">.<\/span>backgroundColor<span style=\"color: #000000\"> = [<\/span><span style=\"color: #78492a\">SKColor<\/span><span style=\"color: #000000\"> <\/span><span style=\"color: #3d1d81\">lightGrayColor<\/span><span style=\"color: #000000\">];<\/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; color: #703daa\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><\/span>SKSpriteNode<span style=\"color: #000000\"> *catShadow = [<\/span>SKSpriteNode<span style=\"color: #000000\"> <\/span><span style=\"color: #3d1d81\">spriteNodeWithImageNamed<\/span><span style=\"color: #000000\">:<\/span><span style=\"color: #d12f1b\">@&#8221;cat&#8221;<\/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 <\/span>catShadow.<span style=\"color: #703daa\">position<\/span> = <span style=\"color: #3d1d81\">CGPointMake<\/span>(<span style=\"color: #272ad8\">160<\/span>, <span style=\"color: #272ad8\">300<\/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\">self<\/span> <span style=\"color: #3d1d81\">addChild<\/span>:catShadow];<\/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\"><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\">static<\/span> <span style=\"color: #bb2ca2\">const<\/span> <span style=\"color: #703daa\">uint32_t<\/span> boxCategory = <span style=\"color: #272ad8\">0x1<\/span> &lt;&lt; <span style=\"color: #272ad8\">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><span style=\"color: #bb2ca2\">static<\/span> <span style=\"color: #bb2ca2\">const<\/span> <span style=\"color: #703daa\">uint32_t<\/span> ropeCategory = <span style=\"color: #272ad8\">0x1<\/span> &lt;&lt; <span style=\"color: #272ad8\">1<\/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: #703daa\">SKNode<\/span> *previous;<\/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\">for<\/span> (<span style=\"color: #bb2ca2\">int<\/span> i=<span style=\"color: #272ad8\">0<\/span>; i&lt;<span style=\"color: #272ad8\">10<\/span>; i++) {<\/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\">float<\/span> x = <span style=\"color: #272ad8\">160<\/span>;<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #78492a\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><\/span><span style=\"color: #bb2ca2\">float<\/span><span style=\"color: #000000\"> y = <\/span><span style=\"color: #272ad8\">200<\/span><span style=\"color: #000000\"> &#8211; <\/span>SPACE_BETWEEN_SEGMENTS<span style=\"color: #000000\"> * i;<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #3d1d81\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 <\/span><\/span><span style=\"color: #703daa\">SKSpriteNode<\/span><span style=\"color: #000000\"> *node = [<\/span><span style=\"color: #703daa\">SKSpriteNode<\/span><span style=\"color: #000000\"> <\/span>spriteNodeWithColor<span style=\"color: #000000\">:[<\/span><span style=\"color: #78492a\">SKColor<\/span><span style=\"color: #000000\"> <\/span>darkGrayColor<span style=\"color: #000000\">] <\/span>size<span style=\"color: #000000\">:<\/span>CGSizeMake<span style=\"color: #000000\">(<\/span><span style=\"color: #272ad8\">8<\/span><span style=\"color: #000000\">, <\/span><span style=\"color: #78492a\">SPACE_BETWEEN_SEGMENTS<\/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>node.<span style=\"color: #703daa\">position<\/span> = <span style=\"color: #3d1d81\">CGPointMake<\/span>(x, y);<\/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>node.<\/span>physicsBody<span style=\"color: #000000\"> = [<\/span>SKPhysicsBody<span style=\"color: #000000\"> <\/span><span style=\"color: #3d1d81\">bodyWithRectangleOfSize<\/span><span style=\"color: #000000\">:node.<\/span>size<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>node.<span style=\"color: #703daa\">physicsBody<\/span>.<span style=\"color: #703daa\">categoryBitMask<\/span> = ropeCategory;<\/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>node.<span style=\"color: #703daa\">physicsBody<\/span>.<span style=\"color: #703daa\">collisionBitMask<\/span> = ropeCategory;<\/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: #3d1d81\">addChild<\/span>:node];<\/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\">if<\/span> (i == <span style=\"color: #272ad8\">0<\/span>) {<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #3d1d81\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span><\/span><span style=\"color: #703daa\">SKSpriteNode<\/span><span style=\"color: #000000\"> *box = [<\/span><span style=\"color: #703daa\">SKSpriteNode<\/span><span style=\"color: #000000\"> <\/span>spriteNodeWithColor<span style=\"color: #000000\">:[<\/span><span style=\"color: #78492a\">SKColor<\/span><span style=\"color: #000000\"> <\/span>clearColor<span style=\"color: #000000\">] <\/span>size<span style=\"color: #000000\">:<\/span>CGSizeMake<span style=\"color: #000000\">(<\/span><span style=\"color: #272ad8\">30<\/span><span style=\"color: #000000\">, <\/span><span style=\"color: #272ad8\">30<\/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 \u00a0 \u00a0 <\/span>box.<span style=\"color: #703daa\">position<\/span> = node.<span style=\"color: #703daa\">position<\/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 \u00a0 \u00a0 <\/span>box.<span style=\"color: #703daa\">zPosition<\/span> = &#8211;<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 \u00a0 \u00a0 <\/span>box.<span style=\"color: #703daa\">physicsBody<\/span> = [<span style=\"color: #703daa\">SKPhysicsBody<\/span> <span style=\"color: #3d1d81\">bodyWithRectangleOfSize<\/span>:box.<span style=\"color: #703daa\">size<\/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 \u00a0 \u00a0 <\/span>box.<span style=\"color: #703daa\">physicsBody<\/span>.<span style=\"color: #703daa\">dynamic<\/span> = <span style=\"color: #bb2ca2\">NO<\/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 \u00a0 \u00a0 <\/span>box.<span style=\"color: #703daa\">physicsBody<\/span>.<span style=\"color: #703daa\">categoryBitMask<\/span> = boxCategory;<\/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 \u00a0 \u00a0 <\/span>box.<\/span>physicsBody<span style=\"color: #000000\">.<\/span>collisionBitMask<span style=\"color: #000000\"> = <\/span><span style=\"color: #272ad8\">0x0<\/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 \u00a0 \u00a0 <\/span>node.<span style=\"color: #703daa\">name<\/span> = <span style=\"color: #d12f1b\">@&#8221;zero&#8221;<\/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 \u00a0 \u00a0 <\/span>[<span style=\"color: #bb2ca2\">self<\/span> <span style=\"color: #3d1d81\">addChild<\/span>:box];<\/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 \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 \u00a0 \u00a0 <\/span><\/span>SKPhysicsJointPin<span style=\"color: #000000\"> *joint = [<\/span>SKPhysicsJointPin<span style=\"color: #000000\"> <\/span><span style=\"color: #3d1d81\">jointWithBodyA<\/span><span style=\"color: #000000\">:node.<\/span>physicsBody<span style=\"color: #000000\"> <\/span><span style=\"color: #3d1d81\">bodyB<\/span><span style=\"color: #000000\">:box.<\/span>physicsBody<span style=\"color: #000000\"> <\/span><span style=\"color: #3d1d81\">anchor<\/span><span style=\"color: #000000\">:box.<\/span>position<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 \u00a0 \u00a0 <\/span>[<span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #703daa\">physicsWorld<\/span> <span style=\"color: #3d1d81\">addJoint<\/span>:joint];<\/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 \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\">else<\/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 \u00a0 \u00a0 <\/span><\/span>SKPhysicsJointPin<span style=\"color: #000000\"> *joint = [<\/span>SKPhysicsJointPin<span style=\"color: #000000\"> <\/span><span style=\"color: #3d1d81\">jointWithBodyA<\/span><span style=\"color: #000000\">:node.<\/span>physicsBody<span style=\"color: #000000\"> <\/span><span style=\"color: #3d1d81\">bodyB<\/span><span style=\"color: #000000\">:previous.<\/span>physicsBody<span style=\"color: #000000\"> <\/span><span style=\"color: #3d1d81\">anchor<\/span><span style=\"color: #000000\">:<\/span><span style=\"color: #3d1d81\">CGPointMake<\/span><span style=\"color: #000000\">(x, y+<\/span><span style=\"color: #78492a\">SPACE_BETWEEN_SEGMENTS<\/span><span style=\"color: #000000\">\/<\/span><span style=\"color: #272ad8\">2<\/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 \u00a0 \u00a0 <\/span>[<span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #703daa\">physicsWorld<\/span> <span style=\"color: #3d1d81\">addJoint<\/span>:joint];<\/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>}<\/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\">if<\/span> (i == <span style=\"color: #272ad8\">9<\/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 \u00a0 \u00a0 <\/span>node.<span style=\"color: #703daa\">name<\/span> = <span style=\"color: #d12f1b\">@&#8221;last&#8221;<\/span>;<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #008400\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/span><\/span>\/\/ hold joint pin &#8212;- bug?<\/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 \u00a0 \u00a0 <\/span><span style=\"color: #703daa\">SKNode<\/span> *zeroNode = [<span style=\"color: #bb2ca2\">self<\/span> <span style=\"color: #3d1d81\">childNodeWithName<\/span>:<span style=\"color: #d12f1b\">@&#8221;zero&#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 \u00a0 \u00a0 <\/span><\/span>SKPhysicsJointLimit<span style=\"color: #000000\"> *joint = [<\/span>SKPhysicsJointLimit<span style=\"color: #000000\"> <\/span><span style=\"color: #3d1d81\">jointWithBodyA<\/span><span style=\"color: #000000\">:zeroNode.<\/span>physicsBody<span style=\"color: #000000\"> <\/span><span style=\"color: #3d1d81\">bodyB<\/span><span style=\"color: #000000\">:node.<\/span>physicsBody<span style=\"color: #000000\"> <\/span><span style=\"color: #3d1d81\">anchorA<\/span><span style=\"color: #000000\">:zeroNode.<\/span>position<span style=\"color: #000000\"> <\/span><span style=\"color: #3d1d81\">anchorB<\/span><span style=\"color: #000000\">:node.<\/span>position<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 \u00a0 \u00a0 <\/span>joint.<span style=\"color: #703daa\">maxLength<\/span> = <span style=\"color: #78492a\">SPACE_BETWEEN_SEGMENTS<\/span> * <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 \u00a0 \u00a0 <\/span>[<span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #703daa\">physicsWorld<\/span> <span style=\"color: #3d1d81\">addJoint<\/span>:joint];<\/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>}<\/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>previous = node;<\/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\">}<\/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\">&#8211; (<span style=\"color: #bb2ca2\">void<\/span>)touchesBegan:(<span style=\"color: #703daa\">NSSet<\/span> *)touches withEvent:(<span style=\"color: #703daa\">UIEvent<\/span> *)event<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\">{<\/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: #703daa\">SKNode<\/span> *last = [<span style=\"color: #bb2ca2\">self<\/span> <span style=\"color: #3d1d81\">childNodeWithName<\/span>:<span style=\"color: #d12f1b\">@&#8221;last&#8221;<\/span>];<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #3d1d81\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span>[last.<\/span><span style=\"color: #703daa\">physicsBody<\/span><span style=\"color: #000000\"> <\/span>applyImpulse<span style=\"color: #000000\">:<\/span>CGVectorMake<span style=\"color: #000000\">(<\/span><span style=\"color: #272ad8\">5<\/span><span style=\"color: #000000\">, <\/span><span style=\"color: #272ad8\">0<\/span><span style=\"color: #000000\">)];<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\">}<\/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\">&#8211; (<span style=\"color: #bb2ca2\">void<\/span>)update:(<span style=\"color: #703daa\">NSTimeInterval<\/span>)currentTime<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\">{<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\">}<\/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; color: #bb2ca2\">@end<\/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; color: #4f8187\"><span style=\"color: #bb2ca2\">@interface<\/span><span style=\"color: #000000\"> <\/span>ViewController<span style=\"color: #000000\"> ()<\/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; color: #bb2ca2\">@end<\/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\">@implementation<\/span> ViewController<\/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\">&#8211; (<span style=\"color: #bb2ca2\">void<\/span>)viewDidLoad<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\">{<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #3d1d81\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span>[<\/span><span style=\"color: #bb2ca2\">super<\/span><span style=\"color: #000000\"> <\/span>viewDidLoad<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 <\/span><span style=\"color: #703daa\">SKView<\/span> *spriteView = [[<span style=\"color: #703daa\">SKView<\/span> <span style=\"color: #3d1d81\">alloc<\/span>] <span style=\"color: #3d1d81\">initWithFrame<\/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 <\/span>[<span style=\"color: #bb2ca2\">self<\/span>.<span style=\"color: #703daa\">view<\/span> <span style=\"color: #3d1d81\">addSubview<\/span>:spriteView];<\/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: #703daa\">SKScene<\/span> *scene = [[<span style=\"color: #4f8187\">RopeScene<\/span> <span style=\"color: #3d1d81\">alloc<\/span>] <span style=\"color: #3d1d81\">initWithSize<\/span>:spriteView.<span style=\"color: #703daa\">bounds<\/span>.<span style=\"color: #703daa\">size<\/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>[spriteView <span style=\"color: #3d1d81\">presentScene<\/span>:scene];<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\">}<\/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\">&#8211; (<span style=\"color: #bb2ca2\">void<\/span>)didReceiveMemoryWarning<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo\">{<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #3d1d81\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span>[<\/span><span style=\"color: #bb2ca2\">super<\/span><span style=\"color: #000000\"> <\/span>didReceiveMemoryWarning<span style=\"color: #000000\">];<\/span><\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #008400\"><span style=\"color: #000000\"><span class=\"Apple-converted-space\">\u00a0 \u00a0 <\/span><\/span>\/\/ Dispose of any resources that can be recreated.<\/p>\n<p style=\"margin: 0.0px 0.0px 0.0px 0.0px; 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