/// <summary>
/// Enters the start state.
/// </summary>
public void Start()
{
if (startState == null)
{
throw new InvalidOperationException("No start state set!");
}
if (currentState != null)
{
throw new InvalidOperationException("FSM already in a state");
}
startState.FireEnterAction();
currentState = startState;
}
internal State TriggerEvent(FSMEvent trigger)
{
if (!transitions.ContainsKey(trigger))
{
return(null);
}
foreach (Transition transition in transitions[trigger])
{
if (transition.CheckGuard())
{
FireExitAction();
transition.FireAction();
State newState = transition.Target;
newState.FireEnterAction();
return(newState);
}
}
return(null);
}