Created
December 8, 2012 02:15
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bootstrapping my game
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <title>sidera</title> | |
| <link href="/css/default.css" rel="stylesheet" /> | |
| <script src="requestAnimationFrameShim.js"></script> | |
| <script src="bootstrap.js"></script> | |
| </head> | |
| <body> | |
| <canvas id="board"></canvas> | |
| </body> | |
| </html> |
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| var canvas, // the visible canvas element | |
| surface, // the 2d context of `canvas` | |
| currentScreen; // the currently rendered screen for the game | |
| function beginLoop() { | |
| var frameId = 0; | |
| var lastFrame = Date.now(); | |
| function loop() { | |
| var thisFrame = Date.now(); | |
| var elapsed = thisFrame - lastFrame; | |
| frameId = window.requestAnimationFrame(loop); | |
| currentScreen.update(elapsed); | |
| currentScreen.draw(surface); | |
| lastFrame = thisFrame; | |
| } | |
| loop(); | |
| } | |
| canvas = document.querySelector('canvas#board'); | |
| canvas.setAttribute('width', 800); | |
| canvas.setAttribute('height', 600); | |
| surface = canvas.getContext('2d'); | |
| currentScreen = startScreen; | |
| beginLoop(); |
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