private void ExtractEventStates()
{
Queue <EventNode> states = new Queue <EventNode>();
foreach (var ev in d_events)
{
var n = new EventNode {
Event = ev,
Node = ev.LogicalTree
};
states.Enqueue(n);
}
// Expand nodes
while (states.Count > 0)
{
var n = states.Dequeue();
// Add three states for each node to hold the
// 1) previous value of the event equation
// 2) current value of the event equation
// 3) distance value of the event equation
AddEventNodeState(new EventNodeState(n.Event, n.Node, EventNodeState.StateType.Previous));
var current = new EventNodeState(n.Event, n.Node, EventNodeState.StateType.Current);
AddEventNodeState(current);
if (n.Node.Expression != null)
{
d_eventEquationStates.Add(current);
}
AddEventNodeState(new EventNodeState(n.Event, n.Node, EventNodeState.StateType.Distance));
if (n.Node.Left != null)
{
states.Enqueue(new EventNode {
Event = n.Event, Node = n.Node.Left
});
}
if (n.Node.Right != null)
{
states.Enqueue(new EventNode {
Event = n.Event, Node = n.Node.Right
});
}
}
}
private void AddEventNodeState(EventNodeState s)
{
AddState(null, s);
d_eventNodeStates.Add(s);
}