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Question by GutoThomas · May 15, 2012 at 02:17 PM · listloopremoveremoveat

Item not being taked off from the List

Hey guys. Could someone tell me why I can't just remove an item from the list? This is making me get stuck in the loop. I execute the command but the item isn't taked off. I also try closedList.Remove(current), without success.

  List<Node> AStar (Node initialNode, Node finalNode) {
         
                 openList = closedList = new List<Node>();
                 
                 initialNode.G = 0;
                 initialNode.H = initialNode.GetH( finalNode );
                 
                 openList.Add(initialNode);
             
                 int justToNotBreak = 0;
             
                 Node current = null;
                 
                 for(int i = 0; i < 4; i++) {
                 
                     current = openList[0];
                 
                     closedList.Add(current);
                 
                     openList.RemoveAt(0); // why the print always return me 1 if I just deleted the one item that openList has?
                 
                     print(openList.Count);
 
              foreach(Node neighbor in current.Neighbors) {
                 
                     if(closedList.Contains(neighbor)) {
                     
                     Debug.Log("Neighbor is in closed list. Ignored.");
                     continue;
                     
                     } else {
     
     [...]

What could be the reason to this to happen? I read that is something with the iteration. Can someone help me? Thanks from now!

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Answer by AchillesWF · May 15, 2012 at 02:22 PM

I think this is because your open list is actually the same as your closed list due to this line:

openList = closedList = new List();

You are adding the item from the openList to the closedList, but since the closedList is the same as the openList, the openList count does not really change.

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avatar image GutoThomas · May 15, 2012 at 02:24 PM 0
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This is exactly the problem! Thanks man! This would be the last thing that I would take a look at! hehe

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