Added Curve.getBounds support (and an override for LineCurve to make it faster).

Author: photonstorm

v3/src/paths/curves/Curve.js

@@ -1,6 +1,8 @@
 //  Based on the three.js Curve classes created by [zz85](http://www.lab4games.net/zz85/blog)
 
 var Class = require('../../utils/Class');
+var FromPoints = require('../../geom/rectangle/FromPoints');
+var Rectangle = require('../../geom/rectangle/Rectangle');
 var Vector2 = require('../../math/Vector2');
 
 //  Local cache vars
@@ -25,6 +27,18 @@ var Curve = new Class({
         this.needsUpdate = true;
     },
 
+    getBounds: function (out)
+    {
+        if (out === undefined) { out = new Rectangle(); }
+
+        //  The length of the curve in pixels
+        //  So we'll have 1 spaced point per 10 pixels
+
+        var spaced = Math.max(1, Math.round(this.getLength() / 10));
+
+        return FromPoints(this.getSpacedPoints(spaced), out);
+    },
+
     getStartPoint: function (out)
     {
         if (out === undefined) { out = new Vector2(); }

v3/src/paths/curves/line/LineCurve.js

@@ -2,6 +2,8 @@
 
 var Class = require('../../../utils/Class');
 var Curve = require('../Curve');
+var FromPoints = require('../../../geom/rectangle/FromPoints');
+var Rectangle = require('../../../geom/rectangle/Rectangle');
 var Vector2 = require('../../../math/Vector2');
 
 //  Phaser.Curves.Line
@@ -29,6 +31,13 @@ var LineCurve = new Class({
         this.p1 = p1;
     },
 
+    getBounds: function (out)
+    {
+        if (out === undefined) { out = new Rectangle(); }
+
+        return FromPoints([ this.p0, this.p1 ], out);
+    },
+
     getStartPoint: function (out)
     {
         if (out === undefined) { out = new Vector2(); }