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https://github.com/photonstorm/phaser
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14 lines
275 B
JavaScript
14 lines
275 B
JavaScript
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// p = Point or any object with public x/y properties
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var Rotate = function (p, angle)
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{
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var x = p.x;
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var y = p.y;
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p.x = x * Math.cos(angle) - y * Math.sin(angle);
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p.y = x * Math.sin(angle) + y * Math.cos(angle);
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return p;
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};
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module.exports = Rotate;
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