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| <html> | |
| <head> | |
| <style> | |
| #viewport{ | |
| border: 1px solid #000000; | |
| } | |
| </style> | |
| <script src="/PhysicsJS/dist/physicsjs-full-0.5.4.js"></script> | |
| <script src="HelloPhysicsJS.js"></script> | |
| </head> | |
| <body onload="onLoad();"> | |
| <canvas id="viewport"></canvas> | |
| </body> | |
| </html> |
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| function onLoad() { | |
| var world = Physics(); | |
| world.add(newRenderer()); | |
| world.add(newViewportBehavior()); | |
| world.add(Physics.behavior('body-impulse-response')); | |
| world.add(Physics.behavior('constant-acceleration')); | |
| world.add(newCircle()); | |
| world.subscribe('step', function() { | |
| world.render(); | |
| }); | |
| Physics.util.ticker.subscribe(function(time, dt) { | |
| world.step(time); | |
| }); | |
| Physics.util.ticker.start(); | |
| } | |
| function getViewportWidth() { | |
| return 500; | |
| } | |
| function getViewportHeight() { | |
| return 300; | |
| } | |
| function newRenderer() { | |
| return Physics.renderer('canvas', { | |
| el: 'viewport', | |
| width: getViewportWidth(), | |
| height: getViewportHeight() | |
| }); | |
| } | |
| function newViewportBehavior() { | |
| return Physics.behavior('edge-collision-detection', { | |
| aabb: getViewportBounds(), | |
| restitution: 0.99, | |
| cof: 0.99 | |
| }); | |
| } | |
| function getViewportBounds() { | |
| return Physics.aabb(0, 0, getViewportWidth(), getViewportHeight()); | |
| } | |
| function newCircle() { | |
| return Physics.body('circle', { | |
| x: 40, | |
| y: 30, | |
| vx: 0.2, | |
| vy: 0.01, | |
| radius: 60 | |
| }); | |
| } |
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