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https://github.com/photonstorm/phaser
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18 lines
452 B
JavaScript
18 lines
452 B
JavaScript
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// Position Vector randomly in a spherical area defined by the given radius
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var RandomXYZ = function (vector, radius)
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{
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if (radius === undefined) { radius = 1; }
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var r = Math.random() * 2 * Math.PI;
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var z = (Math.random() * 2) - 1;
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var zScale = Math.sqrt(1 - z * z) * radius;
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vector.x = Math.cos(r) * zScale;
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vector.y = Math.sin(r) * zScale;
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vector.z = z * radius;
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return vector;
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};
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module.exports = RandomXYZ;
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