public Transition(FSMEvent trigger, State target,
Guard guard, Action action)
{
this.trigger = trigger;
this.target = target;
this.guard = guard;
this.action = action;
}
public Transition(FSMEvent trigger, State target,
Guard guard, Action action)
{
this.trigger = trigger;
this.target = target;
this.guard = guard;
this.action = action;
}
public FSMEvent RegisterEvent(string name)
{
if (registeredEvents.ContainsKey(name))
{
throw new ArgumentException("Event '" + name + "' already registered");
}
FSMEvent newEvent = new FSMEvent(nextEvent++, name);
registeredEvents[name] = newEvent;
return(newEvent);
}
/// <summary>
/// Add a transition.
/// </summary>
/// <param name="source">The source state name.</param>
/// <param name="target">The target state name.</param>
/// <param name="eventName">The event name that triggers this transition.</param>
/// <param name="predicate">The guard predicate for this transition.</param>
/// <param name="action">An action callback to be called if this transition is triggered.</param>
public void AddTransition(string source, string target, FSMEvent trigger,
Guard guard, Action action)
{
if (!states.ContainsKey(source))
{
throw new ArgumentException("No such source state found");
}
if (!states.ContainsKey(target))
{
throw new ArgumentException("No such target state found");
}
states[source].AddTransition(new Transition(trigger,
states[target], guard, action));
}
public override bool Equals(object obj)
{
if (obj == null)
{
return(false);
}
if (ReferenceEquals(this, obj))
{
return(true);
}
if (obj.GetType() != typeof(FSMEvent))
{
return(false);
}
FSMEvent other = (FSMEvent)obj;
return(id == other.id);
}
/// <summary>
/// Trigger an event. If a transition exists for this event name in
/// the current state, the state will change to the transition's
/// target state.
/// </summary>
/// <param name="eventName">The event name.</param>
public void TriggerEvent(FSMEvent evt)
{
if (currentState == null)
{
throw new InvalidOperationException("No current state (you may need to call Start)");
}
if (!registeredEvents.ContainsKey(evt.Name))
{
throw new InvalidOperationException("Event is not registered");
}
State newState = currentState.TriggerEvent(evt);
if (newState != null)
{
currentState = newState;
}
}
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);
}
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;
}
/// <summary>
/// Add a transition.
/// </summary>
/// <param name="source">The source state name.</param>
/// <param name="target">The target state name.</param>
/// <param name="eventName">The event name that triggers this transition.</param>
public void AddTransition(string source, string target, FSMEvent trigger)
{
AddTransition(source, target, trigger, null, null);
}
/// <summary>
/// Add a transition.
/// </summary>
/// <param name="source">The source state name.</param>
/// <param name="target">The target state name.</param>
/// <param name="eventName">The event name that triggers this transition.</param>
/// <param name="guard">The guard predicate for this transition.</param>
public void AddTransition(string source, string target, FSMEvent trigger,
Guard guard)
{
AddTransition(source, target, trigger, guard, null);
}
/// <summary>
/// Trigger an event. If a transition exists for this event name in
/// the current state, the state will change to the transition's
/// target state.
/// </summary>
/// <param name="eventName">The event name.</param>
public void TriggerEvent(FSMEvent evt)
{
if(currentState == null) {
throw new InvalidOperationException("No current state (you may need to call Start)");
}
if(!registeredEvents.ContainsKey(evt.Name)) {
throw new InvalidOperationException("Event is not registered");
}
State newState = currentState.TriggerEvent(evt);
if(newState != null) {
currentState = newState;
}
}
public FSMEvent RegisterEvent(string name)
{
if(registeredEvents.ContainsKey(name)) {
throw new ArgumentException("Event '" + name + "' already registered");
}
FSMEvent newEvent = new FSMEvent(nextEvent ++, name);
registeredEvents[name] = newEvent;
return newEvent;
}
/// <summary>
/// Add a transition.
/// </summary>
/// <param name="source">The source state name.</param>
/// <param name="target">The target state name.</param>
/// <param name="eventName">The event name that triggers this transition.</param>
/// <param name="predicate">The guard predicate for this transition.</param>
/// <param name="action">An action callback to be called if this transition is triggered.</param>
public void AddTransition(string source, string target, FSMEvent trigger,
Guard guard, Action action)
{
if(!states.ContainsKey(source)) {
throw new ArgumentException("No such source state found");
}
if(!states.ContainsKey(target)) {
throw new ArgumentException("No such target state found");
}
states[source].AddTransition(new Transition(trigger,
states[target], guard, action));
}
/// <summary>
/// Add a transition.
/// </summary>
/// <param name="source">The source state name.</param>
/// <param name="target">The target state name.</param>
/// <param name="eventName">The event name that triggers this transition.</param>
/// <param name="action">An action callback to be called if this transition is triggered.</param>
public void AddTransition(string source, string target, FSMEvent trigger,
Action action)
{
AddTransition(source, target, trigger, null, action);
}
/// <summary>
/// Add a transition.
/// </summary>
/// <param name="source">The source state name.</param>
/// <param name="target">The target state name.</param>
/// <param name="eventName">The event name that triggers this transition.</param>
/// <param name="guard">The guard predicate for this transition.</param>
public void AddTransition(string source, string target, FSMEvent trigger,
Guard guard)
{
AddTransition(source, target, trigger, guard, null);
}
