Arcade Physics Body incorrectly positioned if the Sprite had a negative scale (see http://www.html5gamedevs.com/topic/22695-247-248-body-anchoring-any-migration-tips/) (thanks @SBCGames @icameron @Nuuf @EvolViper phaserjs#2488 phaserjs#2490)

Author: photonstorm

README.md

@@ -342,15 +342,15 @@ You can read all about the philosophy behind Lazer [here](http://phaser.io/news/
 
 ### Updates
 
-* TypeScript definitions fixes and updates (thanks )
+* TypeScript definitions fixes and updates (thanks @wingyplus @monagames)
 * Docs typo fixes (thanks )
-*
+* The TypeScript defs ambient declaration has been updated to make it compatible with the SystemJS loader (thanks @monagames)
 *
 *
 
 ### Bug Fixes
 
-*
+* Arcade Physics Body incorrectly positioned if the Sprite had a negative scale (see http://www.html5gamedevs.com/topic/22695-247-248-body-anchoring-any-migration-tips/) (thanks @SBCGames @icameron @Nuuf @EvolViper #2488 #2490)
 *
 *
 

src/physics/arcade/Body.js

@@ -452,8 +452,11 @@ Phaser.Physics.Arcade.Body.prototype = {
 
         this.updateBounds();
 
-        this.position.x = (this.sprite.world.x - (this.sprite.anchor.x * this.sprite.width)) + this.offset.x;
-        this.position.y = (this.sprite.world.y - (this.sprite.anchor.y * this.sprite.height)) + this.offset.y;
+        this.position.x = (this.sprite.world.x - (this.sprite.anchor.x * this.sprite.width)) + this.sprite.scale.x * this.offset.x;
+        this.position.x -= this.sprite.scale.x < 0 ? this.width : 0;
+
+        this.position.y = (this.sprite.world.y - (this.sprite.anchor.y * this.sprite.height)) + this.sprite.scale.y * this.offset.y;
+        this.position.y -= this.sprite.scale.y < 0 ? this.height : 0;
 
         this.rotation = this.sprite.angle;
 
@@ -713,8 +716,11 @@ Phaser.Physics.Arcade.Body.prototype = {
         this.angularVelocity = 0;
         this.angularAcceleration = 0;
 
-        this.position.x = (x - (this.sprite.anchor.x * this.sprite.width)) + this.offset.x;
-        this.position.y = (y - (this.sprite.anchor.y * this.sprite.height)) + this.offset.y;
+        this.position.x = (this.sprite.world.x - (this.sprite.anchor.x * this.sprite.width)) + this.sprite.scale.x * this.offset.x;
+        this.position.x -= this.sprite.scale.x < 0 ? this.width : 0;
+
+        this.position.y = (this.sprite.world.y - (this.sprite.anchor.y * this.sprite.height)) + this.sprite.scale.y * this.offset.y;
+        this.position.y -= this.sprite.scale.y < 0 ? this.height : 0;
 
         this.prev.x = this.position.x;
         this.prev.y = this.position.y;