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37 lines
1.2 KiB
HTML
37 lines
1.2 KiB
HTML
5 years ago
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<!doctype html>
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<html>
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<head>
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<title>canvas.js | basics (1)</title>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<script type="text/javascript" src="../../pattern/canvas.js"></script>
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<script>
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function setup(canvas) {
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// The setup() function is executed once, before the animation starts.
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// This is a good place to load images, or set the canvas size.
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canvas.size(500, 500);
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}
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function draw(canvas) {
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// The draw() function is executed each animation frame.
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// Call canvas.clear() to remove the previous frame.
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// Draw a red rotating rectangle.
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canvas.clear();
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translate(250, 250);
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rotate(canvas.frame);
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rect(-150, -150, 300, 300, {fill: color(1,0,0,1)});
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}
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window.onload = function() {
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// Attach setup() and draw() to the <canvas> and start the animation.
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// In the next example we'll see a shorter syntax,
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// where this is done automatically for you.
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canvas = new Canvas(document.getElementById("canvas1"));
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canvas.setup = setup;
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canvas.draw = draw;
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canvas.run();
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}
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</script>
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</head>
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<body>
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<!-- The HTML <canvas> element targeted by the Canvas object above. -->
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<canvas id="canvas1" width="500px" height="500px"></canvas>
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</body>
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</html>
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