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Removed comments and tidied up arguments

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This commit is contained in:
Richard Davey 2017-09-18 20:52:23 +01:00
parent 696da1dcfb
commit 44ab157523
1 changed files with 5 additions and 12 deletions
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17
v3/src/math/Vector3.js
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@ -316,14 +316,6 @@ var Vector3 = new Class({
var viewWidth = viewport.z;
var viewHeight = viewport.w;
// var x = this.x;
// var y = this.y;
// var z = this.z;
// x = x - viewX;
// y = viewHeight - y - 1;
// y = y - viewY;
var x = this.x - viewX;
var y = (viewHeight - this.y - 1) - viewY;
var z = this.z;
@ -335,17 +327,18 @@ var Vector3 = new Class({
return this.project(invProjectionView);
},
random: function (scale)
// Position Vector randomly in a spherical area defined by the given radius
random: function (radius)
{
if (scale === undefined) { scale = 1; }
if (radius === undefined) { radius = 1; }
var r = Math.random() * 2 * Math.PI;
var z = (Math.random() * 2) - 1;
var zScale = Math.sqrt(1 - z * z) * scale;
var zScale = Math.sqrt(1 - z * z) * radius;
this.x = Math.cos(r) * zScale;
this.y = Math.sin(r) * zScale;
this.z = z * scale;
this.z = z * radius;
return this;
},