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December 14, 2015 06:29
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Disco Squares CoffeeScript HTML5 Canvas
Just copy paste the script into an .html file and see.
A variation on the disco on p.21 of Jump Start CoffeeScript by Earle Castledine
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| <html> | |
| <head> | |
| <title> Disco Squares</title> | |
| </head> | |
| <body> | |
| <style type="text/css"> | |
| html, body, #game { | |
| width: 100%; | |
| height: 100%; | |
| margin: 1px; | |
| } | |
| </style> | |
| <canvas id="game"></canvas> | |
| <script src="http://coffeescript.org/extras/coffee-script.js"></script> | |
| <script type="text/coffeescript"> | |
| ctx = document | |
| .getElementById("game") | |
| .getContext("2d") | |
| noise = -> | |
| for x in [0..20] | |
| for y in [0..10] | |
| color = Math.floor(Math.random() * 360) | |
| ctx.fillStyle = "hsl(#{color}, 60%, 50%)" | |
| sq = 15 # pixels | |
| ctx.fillRect x * sq, y * sq, sq-1, sq-1 | |
| setInterval noise, 100 | |
| # this is | |
| </script> | |
| </body> | |
| </html> |
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