Sprite.events.onDragStart has 2 new parameters x and y which is the position of the Sprite before the drag was started. The full list of parameters is: (sprite, pointer, x, y). This allows you to retain the position of the Sprite prior to dragging should dragFromCenter have been enabled (thanks @vulvulune phaserjs#1583)

Author: photonstorm

README.md

@@ -69,6 +69,7 @@ Version 2.3.0 - "Tarabon" - in dev
 ### Updates
 
 * TypeScript definitions fixes and updates (thanks @Phaiax @Bilge @clark-stevenson @TimvdEijnden @belohlavek @ivw @vulvulune)
+* There is a new TypeScript defs file (phaser.comments.d.ts) which now has all of the jsdocs included! (thanks @vulvulune #1559)
 * Sound.fadeTween is now used for Sound.fadeIn and Sound.fadeOut audio tweens.
 * Sound.stop and Sound.destroy now halt a fade tween if in effect.
 * Arcade Physics `computeVelocity` now allows a max velocity of 0 allowing movement to be constrained to a single axis (thanks @zekoff #1594)
@@ -77,6 +78,7 @@ Version 2.3.0 - "Tarabon" - in dev
 * Added missing plugins member in Phaser.Game class (thanks @Bilge #1568)
 * Lots of JSDocs fixes (thanks @vulvulune @micahjohnston @Marchys)
 * TilemapLayer.getTiles now returns a copy of the Tiles found by the method, rather than references to the original Tile objects, so you're free to modify them without corrupting the source (thanks @Leekao #1585)
+* Sprite.events.onDragStart has 2 new parameters `x` and `y` which is the position of the Sprite before the drag was started. The full list of parameters is: `(sprite, pointer, x, y)`. This allows you to retain the position of the Sprite prior to dragging should `dragFromCenter` have been enabled (thanks @vulvulune #1583)
 
 ### Bug Fixes
 

src/input/InputHandler.js

@@ -1256,6 +1256,9 @@ Phaser.InputHandler.prototype = {
     */
     startDrag: function (pointer) {
 
+        var x = this.sprite.x;
+        var y = this.sprite.y;
+
         this.isDragged = true;
         this._draggedPointerID = pointer.id;
         this._pointerData[pointer.id].isDragged = true;
@@ -1293,7 +1296,7 @@ Phaser.InputHandler.prototype = {
             this.sprite.bringToTop();
         }
 
-        this.sprite.events.onDragStart$dispatch(this.sprite, pointer);
+        this.sprite.events.onDragStart$dispatch(this.sprite, pointer, x, y);
 
     },