private StateVector simulateTransitionFire(Transition fireTransition, bool changeStatistics)
{
this.checkHandler(fireTransition, EventType.PREACTIVATE);
TransitionHistoryItem historyItem = null;
if (changeStatistics)
{
fireTransition.Statistics.add(1);
historyItem = new TransitionHistoryItem(fireTransition);
}
List<Token> tokens = new List<Token>();
List<AbstractEdge> inputs = this.getAllInputEdge(fireTransition);
foreach (AbstractEdge edge in inputs)
{
if (edge.Start is Position)
{
Position position = (Position)edge.Start;
if (EdgeType.NORMAL.Equals(edge.EdgeType))
{
this.checkHandler(position, EventType.PREACTIVATE);
tokens.AddRange(position.takeAwayTokens(edge.Weight, changeStatistics));
this.checkHandler(position, EventType.POSTACTIVATE);
}
else if (EdgeType.RESET.Equals(edge.EdgeType))
{
this.checkHandler(position, EventType.PREACTIVATE);
tokens.AddRange(position.takeAwayTokens(changeStatistics));
this.checkHandler(position, EventType.POSTACTIVATE);
}
else if (EdgeType.INHIBITOR.Equals(edge.EdgeType))
{
// nothing to do
}
}
}
this.checkHandler(fireTransition, EventType.POSTACTIVATE);
this.mixTokens(tokens);
if (changeStatistics && historyItem != null)
{
historyItem.addToken(tokens);
}
List<AbstractEdge> outputs = this.getAllOutputEdge(fireTransition);
int ti = 0;
foreach (AbstractEdge edge in outputs)
{
if (edge.End is Position)
{
Position position = (Position)edge.End;
this.checkHandler(position, EventType.PREACTIVATE);
for (int ei = 0; ei < edge.Weight; ei++)
{
Token token = null;
if (ti < tokens.Count)
{
token = tokens[ti++];
}
else
{
token = new Token("", this.unidGenNumber++, false, Color.Black);
}
position.addToken(token);
}
if (changeStatistics)
{
position.addStatistics();
}
this.checkHandler(position, EventType.POSTACTIVATE);
}
}
if (changeStatistics && historyItem != null)
{
this.addItemToTransitionHistory(historyItem);
}
return this.getNewStateVector(null);
}
protected void addItemToTransitionHistory(TransitionHistoryItem item)
{
this.transitionHistory.Add(item);
}