/// <summary>
/// Swaps target state to current state
/// </summary>
/// <param name="obj">A reference to the object</param>
void SwapStates(ref T obj)
{ //Make sure we have a valid controller
if (EqualityComparer <T> .Default.Equals(obj, default) || _target == _current || _target == null)
{
return;
}
//Call end on our current state
_current.State_End(ref obj);
//Swap our states around
#if PREVIOUS_STATE_MACHINE
_previous = _current;
#endif
_current = _target;
_target = null;
//call state on our new state
_current.State_Start(ref obj);
}