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what to do when node was already in close in A* algorithm Code Example
what to do when node was already in close in A* algorithm 
14 if node_successor is on the CLOSED list but the existing one is as good 
   or better then discard this successor and continue
Source: stackoverflow.com
what to do when node was already in close in A* algorithm 
Get the square on the open list which has the lowest score. Let’s call this square S.
Remove S from the open list and add S to the closed list.
For each square T in S’s walkable adjacent tiles:
If T is in the closed list: Ignore it.
If T is not in the open list: Add it and compute its score.
If T is already in the open list: Check if the F score is lower when we use the current generated path to get there. If it is, update its score and update its parent as well.
Source: stackoverflow.com



Javascript

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