public void addResultToAMAFChilds(BackpropagationContainer result)
{
if (result == null)
{
throw new ArgumentNullException("CLASS: MctsNode, METHOD: addResultToAMAFChilds - the given result is null!");
}
if (result.pathToResult == null || _childNodes == null)
{
return;
}
foreach (MctsNode child in _childNodes)
{
foreach (IMove move in result.pathToResult)
{
if (phasingPlayer != move.playerWhoDoesTheMove)
{
continue;
}
if (child.move.isEqualTo(move))
{
child.addResultAMAF(result.gameResult);
}
}
}
}
private static BackpropagationContainer mctsSearch(IMctsableGameState gameState, MctsNode node)
{
if (!node.areChildNodesExpanded)
{
if (node.playouts == 0)
{
return(defaultPolicy(gameState));
}
node.expandNode();
}
MctsNode bestNode = MctsNode.childSelection(node, _DEFAULT_EXPLORATION_CONSTANT);
gameState.makeMove(bestNode.move);
BackpropagationContainer result;
if (!gameState.isGameOver())
{
result = mctsSearch(gameState, bestNode);
}
else
{
result = new BackpropagationContainer(gameState.getResultOfTheGame(), null);
}
bestNode.addResult(result.gameResult);
bestNode.addResultToAMAFChilds(result);
if (result.pathToResult != null)
{
result.addMoveToPath(bestNode.move);
}
return(result);
}
