topical media & game development

topical media & game development
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _
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                  <h1>Box2D<br/><b>JS</b></h1>
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                                  <a href="http://sourceforge.net/projects/box2d-js/">Home</a>
                                  - <a href="http://sourceforge.net/project/showfiles.php?group_id=227549">Download</a>
                                  - <a href="#about">About</a>
                                  - <a href="#howto">Howto</a>
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                                  - <a href="#contact">Contact</a>
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                  <p style="text-align:center">
                          <span class="key">Left-click</span> to create an object.
                          <span class="key">Right-click</span> to show next example.
                  </p>
  
                  <a name="about"></a>
                  <h1>What's this</h1>
                  <p>
                  Box2DJS is a JavaScript port of <a href="http://www.box2d.org/">Box2D Physics Engine</a>.
                  To tell the truth, this is converted from <a href="http://box2dflash.sourceforge.net/">Box2DFlashAS3</a>_1.4.3.1 in an automatic manner.
                  (The reason why not Box2DFlashAS3_2.0.0 based is simply because I overlooked the renewal.)
                  </p>
  
                  <a name="howto"></a>
                  <h1>How to use</h1>
                  <p>
                  Because this libray does not have a lazy-loading system now, you should load all classes before starting your simulation.
                  To make things worse, each library has a bit complecated dependency each other so that loading libraries in wrong order may cause a fatal error. 
                  To avoid such a trouble, it is strongly recomended to copy the header part of this file or `index.html' including the downloaded zip file.
                  </p>
                  <p>
                  Concerning the Box2D APIs of the library, they are completely same as Box2DFlashAS3. Please google information about it.
                  </p>
  
                  <h2>Sample code</h2>
                  <h3>Create a world</h3>
                  <pre class="prettyprint">var worldAABB = new b2AABB();
  worldAABB.minVertex.Set(-1000, -1000);
  worldAABB.maxVertex.Set(1000, 1000);
  var gravity = new b2Vec2(0, 300);
  var doSleep = true;
  var world = new b2World(worldAABB, gravity, doSleep); </pre>
  
                  <h3>Create a circle body</h3>
                  <pre class="prettyprint">var circleSd = new b2CircleDef();
  circleSd.density = 1.0;
  circleSd.radius = 20;
  circleSd.restitution = 1.0;
  circleSd.friction = 0;
  var circleBd = new b2BodyDef();
  circleBd.AddShape(circleSd);
  circleBd.position.Set(x,y);
  var circleBody = world.CreateBody(circleBd);</pre>
  
                  <h3>Create a revolute joint</h3>
                  <pre class="prettyprint">var jointDef = new b2RevoluteJointDef();
  jointDef.anchorPoint.Set(250, 200);
  jointDef.body1 = world.GetGroundBody();
  jointDef.body2 = circleBody;
  world.CreateJoint(jointDef);</pre>
  
                  <h3>Step a world</h3>
                  <pre class="prettyprint">world.Step();</pre>
  
                  <a name="dependencies"></a>
                  <h1>Dependencies</h1>
                  <ul>
                          <li><a href="http://www.prototypejs.org/">prototype.js</a></li>
                          <li><a href="http://sourceforge.net/projects/iecanvas">IECanvas</a> (when you use a canvas tag to display the result of your physics simulation)</li>
                  </ul>
  
                  <a name="links"></a>
                  <h1>Links</h1>
                  <ul>
                          <li><a href="http://sourceforge.net/projects/box2d-js/">Project Page (SF)</a></li>
                          <li><a href="http://sourceforge.net/project/showfiles.php?group_id=227549">Download Page (SF)</a></li>
                          <li><a href="http://www.box2d.org/">Box2D</a></li>
                          <li><a href="http://box2dflash.sourceforge.net/">Box2DFlashAS3</a></li>
                          <li><a href="http://www.kyucon.com/doc/box2d/">API Doc (Box2DFlashAS3)</a></li>
                  </ul>
  
                  <a name="contact"></a>
                  <h1>Contact</h1>
                  <p>
                  If you have some requests or find any bugs, please tell me about them.<br />
                  <div class="contact">
                  E-mail: andyjpn _at_ gmail _dot_ com<br />
                  Blog: <a href="http://d.hatena.ne.jp/technohippy/">http://d.hatena.ne.jp/technohippy/> (written in Japanese)
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[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _
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