public void UpdateMachine(GameTime gameTime)
{
//don't do anything if you have no states
if (states.Count == 0)
{
return;
}
//don't do anything if there's no current
//state, and no default state
if (currentState == null)
{
currentState = defaultState;
}
if (currentState == null)
{
return;
}
//check for transitions, and then update
FSMStateEnum oldStateID = currentState.GetID();
goalStateID = currentState.CheckTransitions();
//switch if there was a transition
if (goalStateID != oldStateID)
{
if (TransitionState(goalStateID))
{
currentState.Exit();
currentState = goalState;
currentState.Enter();
}
}
currentState.Update(gameTime);
}
