Rectangle.right when set would set the new width to be Rectangle.x + the value given. However the value given should be a new Right coordinate, so the width calculation has been adjusted to compensate (thanks @cryptonomicon, phaserjs#849)

Author: photonstorm

README.md

@@ -146,6 +146,7 @@ Calling addToWorld() would previously not check the _toRemove array, which could
 * Input.SinglePad was fixed so that the rawpad button array supports Windows and Linux (thank @renatodarrigo, fix #958)
 * Key.duration wasn't set to zero after a Key.reset (thanks @DrHackenstein, #932)
 * Device.mobileSafari was no longer detecting Mobile Safari, now fixed (thanks @Zammy, #927)
+* Rectangle.right when set would set the new width to be Rectangle.x + the value given. However the value given should be a new Right coordinate, so the width calculation has been adjusted to compensate (thanks @cryptonomicon, #849)
 
 
 ### ToDo

src/geom/Rectangle.js

@@ -395,7 +395,7 @@ Object.defineProperty(Phaser.Rectangle.prototype, "right", {
         if (value <= this.x) {
             this.width = 0;
         } else {
-            this.width = this.x + value;
+            this.width = value - this.x;
         }
     }