Begin
constructor(key: Any, grabPointPx: PhysicsVector2, pointerId: Long? = null, targetPx: PhysicsVector2, dragConfig: DragConfig)
Parameters
key
Body key.
grab
Point on the body that was "grabbed" (container px).
pointer
Optional pointer identifier (multi-touch / pointer tracking).
target
Initial drag target (container px).
drag
Drag tuning parameters.