public void CheckForLeaves(
ActionButtonNode parent,
List <ActionOption> optionsLeft,
Actor actor,
CheckInOptionLeafAction checkIn,
DeadEndOptionLeafAction deadEnd)
{
if (optionsLeft.Count == 0 && parent.PathLengthToRoot == ActionOptions.Count) //this is a leaf state
{
checkIn(parent);
return;
}
ActionOption nextOne = optionsLeft.First();
optionsLeft.Remove(nextOne);
//here there could be a check for 0 choices on the options, and a way to "get a reason explanation" for the pat dead end
if (nextOne.GetChoices(actor, this).Count == 0)
{
deadEnd(parent, nextOne.LastNoChoiceReason);
return;
}
foreach (IActionOptionChoice choice in nextOne.GetChoices(actor, this))
{
ActionButtonNode child = new ActionButtonNode();
child.label = choice.ValueLabel();
//imitate the next choice being chosen, so GetChoices works correctly...
nextOne.chosenChoice = choice;
CheckForLeaves(child, optionsLeft.ToList(), actor, checkIn, deadEnd);
nextOne.chosenChoice = null;
}
}
public bool CanFillOptions(Actor actor)
{
ActionButtonNode root = new ActionButtonNode();
root.label = ValueLabel();
bool canFill = false;
CheckInOptionLeafAction checkin = (leaf) => {
Debug.Log("found a leaf!: " + leaf.label);
//any leaf will do...
canFill = true;
};
DeadEndOptionLeafAction deadend = (leaf, reason) => {
Debug.Log("Dead end: " + leaf.label);
Debug.Log("reason: " + reason);
};
CheckForLeaves(root, ActionOptions.ToList(), actor, checkin, deadend);
return(canFill);
}