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28 lines
673 B
JavaScript
28 lines
673 B
JavaScript
// Position Vector randomly in a spherical area defined by the given radius
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/**
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* [description]
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*
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* @function Phaser.Math.RandomXYZ
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* @since 3.0.0
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*
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* @param {Phaser.Math.Vector3} vec3 - [description]
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* @param {number} [radius=1] - [description]
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*
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* @return {Phaser.Math.Vector3} [description]
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*/
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var RandomXYZ = function (vec3, 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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vec3.x = Math.cos(r) * zScale;
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vec3.y = Math.sin(r) * zScale;
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vec3.z = z * radius;
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return vec3;
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};
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module.exports = RandomXYZ;
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