Added Vector.equals methods.

Author: photonstorm

v3/src/math/Vector2.js

@@ -50,8 +50,13 @@ var Vector2 = new Class({
         return this;
     },
 
-    angle: function () {
+    equals: function (v)
+    {
+        return ((this.x === v.x) && (this.y === v.y));
+    },
 
+    angle: function ()
+    {
         // computes the angle in radians with respect to the positive x-axis
 
         var angle = Math.atan2(this.y, this.x);

v3/src/math/Vector3.js

@@ -44,6 +44,11 @@ var Vector3 = new Class({
         return this;
     },
 
+    equals: function (v)
+    {
+        return ((this.x === v.x) && (this.y === v.y) && (this.z === v.z));
+    },
+
     copy: function (src)
     {
         this.x = src.x;

v3/src/math/Vector4.js

@@ -40,6 +40,11 @@ var Vector4 = new Class({
         return this;
     },
 
+    equals: function (v)
+    {
+        return ((this.x === v.x) && (this.y === v.y) && (this.z === v.z) && (this.w === v.w));
+    },
+
     set: function (x, y, z, w)
     {
         if (typeof x === 'object')