private StateSpecifier InternalPermitIf(TTriggerType trigger, TStateType destinationState,
Func <bool> triggerCondition)
{
_specification.AddTriggerStrategy(new StateTransitionTriggerStrategy(trigger, destinationState,
triggerCondition));
return(this);
}
private StateSpecifier PermitIfInternal(TTriggerType trigger,
Func <object[], TStateType> destinationStateSelector,
Func <bool> triggerCondition)
{
_specification.AddTriggerStrategy(new DestinationFunctionTriggerStrategy(trigger,
destinationStateSelector,
triggerCondition));
return(this);
}
public void AddEntryAction(TTriggerType trigger, Action <StateTransition, object[]> action)
{
_entryActions.Add((t, args) =>
{
if (t.Trigger.Equals(trigger))
{
action(t, args);
}
});
}
private bool HasLocalHandlerFor(TTriggerType trigger, out TriggerStrategy handler)
{
ICollection <TriggerStrategy> possible;
if (!_triggerStrategies.TryGetValue(trigger, out possible))
{
handler = null;
return(false);
}
var actual = possible.Where(at => at.ConditionPositive).ToArray();
if (actual.Count() > 1)
{
throw new InvalidOperationException(
string.Format("Ambiguous trigger transition on trigger {0} on state {1}",
trigger, _state));
}
handler = actual.FirstOrDefault();
return(handler != null);
}
private StateSpecifier InternalPermitDynamic(TTriggerType trigger,
Func <object[], TStateType> destinationStateSelector)
{
return(PermitIfInternal(trigger, destinationStateSelector, Promiscuous));
}
public override void Trigger(TTriggerType trigger, TTriggerData data)
{
Universe.GetComponents <TComponent>()
.ForAll(component => OnTrigger(trigger, data, component as TComponent));
}
public StateTransition(TStateType source, TStateType destination, TTriggerType trigger)
{
_source = source;
_destination = destination;
_trigger = trigger;
}
public StateSpecifier OnEntryFrom(TTriggerType trigger, Action <StateTransition> entryAction)
{
_specification.AddEntryAction(trigger, (t, args) => entryAction(t));
return(this);
}
public StateSpecifier IgnoreIf(TTriggerType trigger, Func <bool> triggerCondition)
{
_specification.AddTriggerStrategy(new IgnoredTriggerStrategy(trigger, triggerCondition));
return(this);
}
public StateSpecifier PermitReentryIf(TTriggerType trigger, Func <bool> triggerCondition)
{
return(InternalPermitIf(trigger, _specification.UnderlyingState, triggerCondition));
}
public StateSpecifier PermitIf(TTriggerType trigger, TStateType destinationState,
Func <bool> triggerCondition)
{
EnforceNotIdentityTransition(destinationState);
return(InternalPermitIf(trigger, destinationState, triggerCondition));
}
public bool HasHandlerFor(TTriggerType trigger, out TriggerStrategy handler)
{
return(HasLocalHandlerFor(trigger, out handler) ||
(Superstate != null && Superstate.HasHandlerFor(trigger, out handler)));
}
public bool CanHandle(TTriggerType trigger)
{
TriggerStrategy unused;
return(HasHandlerFor(trigger, out unused));
}
public abstract void OnTrigger(TTriggerType trigger, TTriggerData data, TEntity entity);
public override void Trigger(TTriggerType trigger, TTriggerData data)
{
Universe.GetEntities <TEntity>().ForAll(entity => OnTrigger(trigger, data, entity));
}
public abstract void OnTrigger(TTriggerType trigger, TTriggerData data, TComponent component);
public StateSpecifier Permit(TTriggerType trigger, TStateType destinationState)
{
EnforceNotIdentityTransition(destinationState);
return(InternalPermit(trigger, destinationState));
}
public StateTransitionTriggerStrategy(TTriggerType trigger, TStateType destination,
Func <bool> triggerCondition)
: base(trigger, triggerCondition)
{
_destination = destination;
}
public StateSpecifier PermitReentry(TTriggerType trigger)
{
return(InternalPermit(trigger, _specification.UnderlyingState));
}
public IgnoredTriggerStrategy(TTriggerType trigger, Func <bool> triggerCondition)
: base(trigger, triggerCondition)
{
}
public StateSpecifier Ignore(TTriggerType trigger)
{
return(IgnoreIf(trigger, Promiscuous));
}
public StateSpecifier Permit(TTriggerType trigger, Func <TStateType> destinationStateSelector)
{
return(PermitIf(trigger, destinationStateSelector, Promiscuous));
}
public StateSpecifier OnEntryFrom(TTriggerType trigger, Action entryAction)
{
return(OnEntryFrom(trigger, t => entryAction()));
}
public StateSpecifier PermitIf(TTriggerType trigger, Func <TStateType> destinationStateSelector,
Func <bool> triggerCondition)
{
return(PermitIfInternal(trigger, args => destinationStateSelector(), triggerCondition));
}
protected TriggerStrategy(TTriggerType trigger, Func <bool> triggerCondition)
{
_trigger = trigger;
_triggerCondition = triggerCondition;
}
private StateSpecifier InternalPermit(TTriggerType trigger, TStateType destinationState)
{
return(InternalPermitIf(trigger, destinationState, () => true));
}
public DestinationFunctionTriggerStrategy(TTriggerType trigger, Func <object[], TStateType> destination,
Func <bool> triggerCondition)
: base(trigger, triggerCondition)
{
_destination = destination;
}
public ParameterizedTrigger(TTriggerType underlyingTrigger, params Type[] argumentTypes)
{
_underlyingTrigger = underlyingTrigger;
_argumentTypes = argumentTypes;
}
