protected TransitionMonitor(TransitionSet tset, IGate pre, IGate post)
{
_transitions = tset;
Name = "internal";
PreCondition = pre;
PostCondition = post;
}
public void CalculateEffects()
{
_tset = new TransitionSet();
// overall precondition for the event
var c = new TriggerTermCollection <bool>(true);
foreach (var t in Triggers)
{
c.Add(t);
// add to event wide transition set
_tset.AddRange(t.Transitions);
}
var guards = new GuardCollection();
var before = new EffectsCollection();
var after = new EffectsCollection();
foreach (var t in Triggers)
{
foreach (var g in t.Guards)
{
guards.AddGuard(t, g);
}
foreach (var effect in t.Effects)
{
after.AddEffect(t, effect);
}
}
guards.AddLeaveEffects(before);
guards.AddEnterEffects(after);
// make results visible
EffectsBefore = before;
EffectsAfter = after;
PreCondition = c.PreCondition;
}
public TransitionSet GetTransitions(IGate c, bool post = false)
{
var tset = new TransitionSet();
var vclist = c.SelectAll(g => g is IVariableCondition).OfType <IVariableCondition>();
foreach (var vc in vclist)
{
foreach (var x in GetTransitions(vc.Variable))
{
if (!post)
{
// work on preconditions
if (x.PreStateIndexes.Contains(vc.StateIndex))
{
// transition matches variable condition
if (x.PreStateIndexes.Length > 1)
{
// reduce to simple transition
var y = new Transition(x.Parent);
y.PreStateIndexes = new int[] { vc.StateIndex };
y.NewStateIndexes = x.NewStateIndexes;
tset.Add(y);
}
else
{
tset.Add(x);
}
}
}
else
{
throw new NotImplementedException();
}
}
}
return(tset);
}
/// <summary>
/// Creates a trigger based on another trigger, with new conditions.
/// </summary>
/// <param name="parent">The original trigger.</param>
/// <param name="tset">The corresponding transition set.</param>
/// <param name="pre">The precondition for the new trigger.</param>
/// <param name="post">The postcondition for the new trigger.</param>
internal ProductTrigger(Trigger parent, TransitionSet tset, IGate pre, IGate post)
: base(parent, tset, pre, post)
{
}
/// <summary>
/// Creates a trigger based on another trigger, with new conditions.
/// </summary>
/// <param name="parent">The original trigger.</param>
/// <param name="tset">The corresponding transition set.</param>
/// <param name="pre">The precondition for the new trigger.</param>
/// <param name="post">The postcondition for the new trigger.</param>
protected Trigger(Trigger parent, TransitionSet tset, IGate pre, IGate post)
: base(tset, pre, post)
{
Event = parent.Event;
AddEffects(parent.Effects);
}
/// <summary>
/// Constructs a transition set from the variable conditions in a gate.
/// </summary>
/// <param name="g"></param>
public TransitionSet(TransitionSet parent, IGate g)
{
AddRange(parent.GetTransitions(g));
}