The Game Object Drag Event.
This event is dispatched by an interactive Game Object if a pointer moves while dragging it.
Listen to this event from a Game Object using:
Note that the scope of the listener is automatically set to be the Game Object instance itself.
To receive this event, the Game Object must have been set as interactive and enabled for drag. See GameObject.setInteractive for more details.
The Pointer responsible for triggering this event.
The x coordinate where the Pointer is currently dragging the Game Object, in world space.
The y coordinate where the Pointer is currently dragging the Game Object, in world space.