public IEnumerator ProcessStacks()
{
while (true)
{
while (stackExec.Count == 0)
{
//If we don't have any executables to process, then we have to unpack clauses until we do have an executable
if (stackClause.Count > 0)
{
//If we have a clause on our stack, then unpack that to hopefully add an executable to the stack
if (bDEBUGENGINE)
{
Debug.Log("No Executables, so unpack a Clause");
}
ResolveClause();
}
else
{
//If we have no clauses on our stack, then our stack is completely empty, so we can push
// a new executable for the next phase of the turn
if (bDEBUGENGINE)
{
Debug.Log("No Clauses or Executables so move to the next part of the turn");
}
ContTurns.Get().FinishedTurnPhase();
}
}
//If we've gotten this far, then we know we have an executable to examine
//Check if the executable on top of our stack has dealt with its pre-triggers/replacements yet
if (stackExec.Peek().bPreTriggered)
{
//If we've already dealt with all its pretriggers/replacements, then we're ready to actually evaluate and we can
// exit our loop
break;
}
else
{
//Debug.Log("Performing Replacement effects and Pre-Triggers");
//Pop off the top element
Executable top = stackExec.Pop();
//Check for any replacement effects
//Initially, we reset the cycle-checking flags for each registered replacement effect
Replacement.ResetReplacedFlags();
//Resolve any full replacement effects (so we settle on a single type of executable)
top = ResolveFullReplacements(top);
//Now we modify that executable as much as necessary
top = ResolveReplacements(top);
//Push the modified executable back onto the stack at the top
stackExec.Push(top);
//Now we can push all of the pre-triggers onto the stack
top.GetPreTrigger().NotifyObs(null, top);
//Set our flag so that we don't pre-trigger this effect again
top.bPreTriggered = true;
//Now we can continue our loop to process whatever executable is now at the top of the stack
}
}
//If we've gotten this far, then we know we have an executable at the top of our stack and
// we are ready to process it
yield return(ResolveExec());
}