public void StateTransitionedToSameStateTest()
{
var stateMachine = new StateMachine();
IStateMachineEvent e1 = stateMachine.AddNewEvent("Event1");
IStateMachineEvent e2 = stateMachine.AddNewEvent("Event2");
var initial = stateMachine.AddNewState("Initial") as StateMachineState;
var first = stateMachine.AddNewState("First") as StateMachineState;
initial.AddNewTransition(e1, first);
first.AddNewTransition(e1, initial);
first.AddNewTransition(e2, first);
var context = new StateMachineContext(stateMachine, initial, null);
context.Start();
context.HandleEvent(e2);
Assert.That(context.CurrentState, Is.SameAs(initial));
context.HandleEvent(e1);
Assert.That(context.CurrentState, Is.SameAs(first));
context.HandleEvent(e2);
Assert.That(context.CurrentState, Is.SameAs(first));
}
public virtual IStateTransition AddNewTransition(IStateMachineEvent trigger, IStateMachineState destination)
{
var transition = new StateTransition(this, trigger, destination);
TransitionList.Add(transition);
return(transition);
}
public StateTransition(IStateMachineState parent, IStateMachineEvent triggerEvent,
IStateMachineState targetState) : base(parent.StateMachine)
{
ParentState = parent;
TriggerEvent = triggerEvent;
TargetState = targetState;
}
public virtual IStateTransition AddNewTransition(IStateMachineEvent trigger, IStateMachineState destination, List <string> rolesRequired)
{
var transition = new StateTransition(this, trigger, destination, rolesRequired);
TransitionList.Add(transition);
return(transition);
}
public static IStateTransition FindFirstMatchingTransition(this IStateMachineContext context,
IStateMachineEvent transitionEvent)
{
if (context == null || context.CurrentState == null)
{
return(null);
}
if (transitionEvent == null)
{
throw new ArgumentNullException("transitionEvent");
}
if (context.CurrentState.Transitions == null)
{
return(null);
}
foreach (IStateTransition transition in context.CurrentState.Transitions)
{
if (transition.Matches(transitionEvent, context))
{
return(transition);
}
}
return(null);
}
public virtual IStateMachineEventAction AddNewEventAction(string actionTaskName,
IStateMachineEvent eventIdentifier,
params object[] actionArgs)
{
var action = new StateMachineEventAction(this, actionTaskName, eventIdentifier, actionArgs);
EventActionList.Add(action);
return(action);
}
public StateTransition(IStateMachineState parent, IStateMachineEvent triggerEvent,
IStateMachineState targetState, List <string> rolesRequired)
: base(parent.StateMachine)
{
ParentState = parent;
TriggerEvent = triggerEvent;
TargetState = targetState;
RolesRequired = rolesRequired;
}
public bool ExecuteTrigger(StateChart stateChart, IStateMachineEvent stateMachineEvent)
{
if (TriggerEvent == stateMachineEvent)
{
stateChart.PrepareTransition(TargetStateVertex);
return(true);
}
return(false);
}
public void TransitionActionTest()
{
var stateMachine = new StateMachine();
stateMachine.RegisterTaskAssembly(GetType().Assembly);
stateMachine.AddStateInitializationAction("TestyTheTest");
IStateMachineEvent e1 = stateMachine.AddNewEvent("Event1");
IStateMachineEvent e2 = stateMachine.AddNewEvent("Event2");
var initial = stateMachine.AddNewState("Initial") as StateMachineState;
var first = stateMachine.AddNewState("First") as StateMachineState;
initial.AddNewTransition(e1, first);
first.AddNewTransition(e1, initial);
first.AddNewTransition(e2, first);
first.AddStateFinalizationAction("TestyTheTest::AlternateMethod");
var context = new StateMachineContext(stateMachine, null, null);
context.Start();
TestStateMachineTask.Clear();
context.HandleEvent(e1);
Assert.That(TestStateMachineTask.PhaseHistory.Count, Is.EqualTo(1));
context.HandleEvent(e2);
Assert.That(TestStateMachineTask.PhaseHistory.Count, Is.EqualTo(3));
//Global init, Local Finalize, Global init
Assert.That(TestStateMachineTask.PhaseHistory[0], Is.EqualTo(StateTransitionPhase.StateInitialization));
Assert.That(TestStateMachineTask.PhaseHistory[1], Is.EqualTo(StateTransitionPhase.StateFinalization));
Assert.That(TestStateMachineTask.PhaseHistory[2], Is.EqualTo(StateTransitionPhase.StateInitialization));
//first inits, first finalizes, first inits
Assert.That(TestStateMachineTask.StateHistory[0], Is.SameAs(first));
Assert.That(TestStateMachineTask.StateHistory[1], Is.SameAs(first));
Assert.That(TestStateMachineTask.StateHistory[1], Is.SameAs(first));
context.HandleEvent(e1);
//first finalizes, initial inits
Assert.That(TestStateMachineTask.StateHistory[3], Is.SameAs(first));
Assert.That(TestStateMachineTask.StateHistory[4], Is.SameAs(initial));
Assert.That(TestStateMachineTask.PhaseHistory[3], Is.EqualTo(StateTransitionPhase.StateFinalization));
Assert.That(TestStateMachineTask.PhaseHistory[4], Is.EqualTo(StateTransitionPhase.StateInitialization));
}
protected void add_event(string eventName, object eventIdentifier, ActionDelegate taskDelegate)
{
EnsureName();
CurrentEvent = BuildEvent(eventName, eventIdentifier);
if (taskDelegate != null)
{
taskDelegate();
}
CurrentEvent = null;
}
public void ContextEventTest()
{
//Use just this assembly to load tasks from
var stateMachine = new StateMachine();
IStateMachineEvent e1 = stateMachine.AddNewEvent("Event1");
IStateMachineEvent e2 = stateMachine.AddNewEvent("Event2");
var initial = stateMachine.AddNewState("Initial") as StateMachineState;
var first = stateMachine.AddNewState("First") as StateMachineState;
initial.AddNewTransition(e1, first);
first.AddNewTransition(e1, initial);
first.AddNewTransition(e2, first);
var context = new StateMachineContext(stateMachine, null, null);
context.Start();
_beforeCount = 0;
_afterCount = 0;
_cancel = true;
context.BeforeStateChanged += context_BeforeStateChanged;
context.AfterStateChanged += context_AfterStateChanged;
context.HandleEvent(e1);
Assert.That(_beforeCount, Is.EqualTo(1));
Assert.That(_afterCount, Is.EqualTo(0));
Assert.That(context.CurrentState, Is.SameAs(initial));
_beforeCount = 0;
_afterCount = 0;
_cancel = false;
context.HandleEvent("Event1");
Assert.That(_beforeCount, Is.EqualTo(1));
Assert.That(_afterCount, Is.EqualTo(1));
Assert.That(context.CurrentState, Is.SameAs(first));
context.HandleEvent(e2);
Assert.That(_beforeCount, Is.EqualTo(2));
Assert.That(_afterCount, Is.EqualTo(2));
Assert.That(context.CurrentState, Is.SameAs(first));
}
protected void add_transition(string eventName, string targetStateName)
{
if (CurrentState != null)
{
var transition = new TransitionDef
{
ParentState = CurrentState,
TriggerEvent = eventName,
TargetState = targetStateName,
RolesRequired = new List <string>()
};
PendingTransitions.Add(transition);
CurrentEvent = StateMachine.FindEventByName(eventName);
}
}
public virtual bool ExecuteTrigger(StateChart stateChart, IStateMachineEvent stateMachineEvent)
{
if (Transitions == null)
{
return(false);
}
foreach (var transition in Transitions)
{
if (transition.ExecuteTrigger(stateChart, stateMachineEvent))
{
return(true);
}
}
return(false);
}
protected void AddEventAction(string eventName, string taskName, object[] args)
{
EnsureName();
IStateMachineEvent evt = StateMachine.FindEventByName(eventName);
if (evt != null)
{
if (CurrentState != null)
{
CurrentState.AddNewEventAction(taskName, evt, args);
}
else
{
StateMachine.AddNewEventAction(taskName, evt, args);
}
}
}
public void ShouldExecuteAssignedActionWhenEventIsReceived()
{
var stateMachine = new StateMachine();
stateMachine.RegisterTaskAssembly(GetType().Assembly);
IStateMachineEvent e1 = stateMachine.AddNewEvent("Event1");//.Action("TestyTheTest");
IStateMachineEvent e2 = stateMachine.AddNewEvent("Event2");
stateMachine.AddNewEventAction("TestyTheTest", e1);
var initial = stateMachine.AddNewState("Initial") as StateMachineState;
var first = stateMachine.AddNewState("First") as StateMachineState;
initial.AddNewEventAction("TestyTheTest", e1);
initial.AddNewTransition(e1, first);
first.AddNewTransition(e1, initial);
first.AddNewTransition(e2, first);
var context = new StateMachineContext(stateMachine, null, null);
context.Start();
TestStateMachineTask.Clear();
context.HandleEvent(e1);
Assert.That(TestStateMachineTask.PhaseHistory.Count, Is.EqualTo(2));
context.HandleEvent(e2);
Assert.That(TestStateMachineTask.PhaseHistory.Count, Is.EqualTo(2));
Assert.That(TestStateMachineTask.EventHistory[0], Is.SameAs(e1));
context.HandleEvent(e1);
Assert.That(TestStateMachineTask.EventHistory.Count, Is.EqualTo(3));
Assert.That(TestStateMachineTask.EventHistory[1], Is.SameAs(e1));
}
protected void add_transition(string eventName, string targetStateName, string rolesRequired)
{
if (CurrentState != null)
{
var transition = new TransitionDef
{
ParentState = CurrentState,
TriggerEvent = eventName,
TargetState = targetStateName,
RolesRequired = new List <string>()
};
foreach (string role in rolesRequired.ToString().Replace("(", "").Replace(")", "").Split(new char[] { ',' }))
{
transition.RolesRequired.Add(role);
}
PendingTransitions.Add(transition);
CurrentEvent = StateMachine.FindEventByName(eventName);
}
}
public void CreateAndRunSimpleStateMachineTest()
{
var stateMachine = new StateMachine();
IStateMachineEvent e1 = stateMachine.AddNewEvent("Event1");
IStateMachineEvent e2 = stateMachine.AddNewEvent("Event2");
var initial = stateMachine.AddNewState("Initial") as StateMachineState;
var first = stateMachine.AddNewState("First") as StateMachineState;
var second = stateMachine.AddNewState("Second") as StateMachineState;
initial.AddNewTransition(e1, first);
initial.AddNewTransition(e2, second);
first.AddNewTransition(e1, initial);
first.AddNewTransition(e2, second);
second.AddNewTransition(e1, initial);
second.AddNewTransition(e2, first);
var context = new StateMachineContext(stateMachine, "Initial", null);
context.Start();
context.HandleEvent(e1);
Assert.That(context.CurrentState, Is.SameAs(first));
context.HandleEvent(e1);
Assert.That(context.CurrentState, Is.SameAs(initial));
context.HandleEvent(e2);
Assert.That(context.CurrentState, Is.SameAs(second));
context.HandleEvent(e2);
Assert.That(context.CurrentState, Is.SameAs(first));
context.HandleEvent(e2);
Assert.That(context.CurrentState, Is.SameAs(second));
context.HandleEvent(e1);
Assert.That(context.CurrentState, Is.SameAs(initial));
}
private static bool UpdateNonInstantEvents(StateMachine stateMachine, ref List <Event> nonInstantEvents, float currentTime)
{
for (int i = 0; i < nonInstantEvents.Count;)
{
Event evnt = nonInstantEvents[i];
IStateMachineEvent stateMachineEvent = evnt as IStateMachineEvent;
float eventTime = currentTime - evnt.GetTime();
bool timeUp = eventTime >= evnt.GetDuration();
if (timeUp)
{
stateMachineEvent.End(stateMachine);
nonInstantEvents.RemoveAt(i);
}
else
{
eEventTriggerReturn status = stateMachineEvent.Update(stateMachine, eventTime);
switch (status)
{
case eEventTriggerReturn.EventFinished:
nonInstantEvents.RemoveAt(i);
break;
case eEventTriggerReturn.EventOngoing:
break;
case eEventTriggerReturn.EventFinishedExitState:
return(true);
}
i++;
}
}
return(false);
}
protected void CommitPendingTransitions()
{
foreach (TransitionDef transition in PendingTransitions)
{
IStateMachineEvent triggerEvent = StateMachine.FindEventByName(transition.TriggerEvent);
IStateMachineState targetState = StateMachine.FindStateByName(transition.TargetState);
if (triggerEvent == null)
{
throw new Exception("A non-existent event was specified in a transition for " +
transition.ParentState.StateName + " : " +
transition.TriggerEvent);
}
if (targetState == null)
{
throw new Exception(
"A non-existent target state was specified in a transition for " +
transition.ParentState.StateName + " : " + transition.TargetState);
}
((StateMachineState)transition.ParentState).AddNewTransition(triggerEvent, targetState, transition.RolesRequired);
}
}
public StateChartSignal(IStateMachineEvent stateMachineEvent)
{
this._stateMachineEvent = stateMachineEvent;
}
private static IEnumerator PerformState(StateMachine stateMachine, TimelineState state, Timeline timeline)
{
if (timeline != null && timeline._events.Length > 0)
{
ITimelineStateMachineTimer timer = TimelineStateMachine.GetTimer(stateMachine.gameObject);
float currentTime = 0.0f;
List <Event> nonInstantEvents = new List <Event>();
int eventIndex = 0;
Event currentEvent = timeline._events[eventIndex];
while (currentEvent != null || nonInstantEvents.Count > 0)
{
IStateMachineEvent currentStateMachineEvent = currentEvent as IStateMachineEvent;
if (currentStateMachineEvent == null && currentEvent != null)
{
throw new System.Exception("Event doesn't implement IStateMachineEvent");
}
float nextEventTime = currentEvent != null ? timeline._events[eventIndex].GetTime() : 0.0f;
//Wait until event time
while (currentTime < nextEventTime || (currentEvent == null && nonInstantEvents.Count > 0))
{
currentTime += timer.GetDeltaTime();
#if DEBUG
TimelineStateMachineDebug.OnTimelineStateTimeProgress(stateMachine, state, currentTime);
#endif
//Updated non instant events, if any now wants to exit the state then break out of coroutine
if (UpdateNonInstantEvents(stateMachine, ref nonInstantEvents, currentTime))
{
EndNonInstantEvents(stateMachine, ref nonInstantEvents);
yield break;
}
yield return(null);
}
if (currentEvent == null)
{
break;
}
//Trigger event
eEventTriggerReturn status = currentStateMachineEvent.Trigger(stateMachine);
switch (status)
{
case eEventTriggerReturn.EventFinished:
//Do nothing, just move on to next event
break;
case eEventTriggerReturn.EventFinishedExitState:
//Exit state so break out of coroutine
EndNonInstantEvents(stateMachine, ref nonInstantEvents);
yield break;
case eEventTriggerReturn.EventOngoing:
//Track timed event, move on to next event
nonInstantEvents.Add(currentEvent);
break;
}
//Get next
currentEvent = ++eventIndex < timeline._events.Length ? timeline._events[eventIndex] : null;
}
}
#if DEBUG
TimelineStateMachineDebug.OnTimelineStateStoped(stateMachine);
#endif
yield break;
}
public void Trigger(IStateMachineEvent trigger)
{
currentStateVertex?.ExecuteTrigger(this, trigger);
}
public StateMachineEventAction(IStateMachine stateMachine, string actionName, IStateMachineEvent triggerEvent, params object[] actionArgs)
: base(stateMachine, actionName, actionArgs)
{
TriggerEvent = triggerEvent;
}
public StateTransition OnEvent(IStateMachineEvent trigger)
{
TriggerEvent = trigger;
return(this);
}
public virtual IStateMachineEventAction AddNewEventAction(string actionTaskName, IStateMachineEvent triggerEvent, params object[] actionArgs)
{
var action = new StateMachineEventAction(StateMachine, actionTaskName, triggerEvent, actionArgs);
EventActionList.Add(action);
return(action);
}
public StateTransition Event(IStateMachineEvent trigger)
{
return(Transition().OnEvent(trigger));
}