/// <summary>
/// Adds a new transition that can happen from any possible state
/// </summary>
/// <param name="transition">The transition instance; The "from" field can be
/// left empty, as it has no meaning in this context.</param>
public void AddTransitionFromAny(TransitionBase transition)
{
transition.fsm = this;
transition.mono = mono;
transition.Init();
transitionsFromAny.Add(transition);
}
public WrappedTransition Wrap(TransitionBase <TStateId> transition)
{
return(new WrappedTransition(
transition,
beforeOnEnter,
afterOnEnter,
beforeShouldTransition,
afterShouldTransition
));
}
/// <summary>
/// Checks if a transition can take place, and if this is the case, transition to the
/// "to" state and return true. Otherwise it returns false
/// </summary>
/// <param name="transition"></param>
/// <returns></returns>
private bool TryTransition(TransitionBase transition)
{
if (!transition.ShouldTransition())
{
return(false);
}
RequestStateChange(transition.to, transition.forceInstantly);
return(true);
}
/// <summary>
/// Adds a new transition between two states
/// </summary>
/// <param name="transition">The transition instance</param>
public void AddTransition(TransitionBase transition)
{
if (!transitions.ContainsKey(transition.from))
{
transitions[transition.from] = new List <TransitionBase>();
}
transition.fsm = this;
transition.mono = mono;
transitions[transition.from].Add(transition);
}
public void AddTriggerTransition(TEvent trigger, TransitionBase <TStateId> transition)
{
triggerToTransitions = triggerToTransitions
?? new Dictionary <TEvent, List <TransitionBase <TStateId> > >();
List <TransitionBase <TStateId> > transitionsOfTrigger;
if (!triggerToTransitions.TryGetValue(trigger, out transitionsOfTrigger))
{
transitionsOfTrigger = new List <TransitionBase <TStateId> >();
triggerToTransitions.Add(trigger, transitionsOfTrigger);
}
transitionsOfTrigger.Add(transition);
}
public WrappedTransition(
TransitionBase <TStateId> transition,
Action <TransitionBase <TStateId> > beforeOnEnter = null,
Action <TransitionBase <TStateId> > afterOnEnter = null,
Action <TransitionBase <TStateId> > beforeShouldTransition = null,
Action <TransitionBase <TStateId> > afterShouldTransition = null) : base(
transition.from, transition.to, forceInstantly: transition.forceInstantly)
{
this.transition = transition;
this.beforeOnEnter = beforeOnEnter;
this.afterOnEnter = afterOnEnter;
this.beforeShouldTransition = beforeShouldTransition;
this.afterShouldTransition = afterShouldTransition;
}
/// <summary>
/// Runs one logic step. It does at most one transition itself and
/// calls the active state's logic function (after the state transition, if
/// one occurred).
/// </summary>
override public void OnLogic()
{
if (activeState == null)
{
throw new System.Exception("The FSM has not been initialised yet! "
+ "Call fsm.SetStartState(...) and fsm.OnEnter() or fsm.Init() to initialise");
}
// Try the "global" transitions that can transition from any state
for (int i = 0; i < transitionsFromAny.Count; i++)
{
TransitionBase transition = transitionsFromAny[i];
// Don't transition to the "to" state, if that state is already the active state
if (transition.to == activeState.name)
{
continue;
}
if (TryTransition(transition))
{
activeState.OnLogic();
return;
}
}
// Try the "normal" transitions that transition from one specific state to another
for (int i = 0; i < activeTransitions.Count; i++)
{
TransitionBase transition = activeTransitions[i];
if (TryTransition(transition))
{
activeState.OnLogic();
return;
}
}
activeState.OnLogic();
}
public void AddTransition(TransitionBase <TStateId> t)
{
transitions = transitions ?? new List <TransitionBase <TStateId> >();
transitions.Add(t);
}