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/* gcompris - gcompris_alphabeta.h
*
* Time-stamp: <2006/08/28 21:20:56 bruno>
*
* Copyright (C) 2000 Bruno Coudoin
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _GOMPRIS_ALPHABETA_H_
#define _GOMPRIS_ALPHABETA_H_
#include "gcompris.h"
/* gc_alphabeta returns the best value of evaluation functions */
/* set the bestChild to the index of child with this value */
/* maximize : TRUE if depth is maximize one, neither FALSE. */
/* treeGame : pointer on game to pass to others functions, */
/* bestChild : pointer on GList wich will contains list of indexes fo best plays. */
/* isLeaf : TRUE if game correspond to a Leaf of Tree. */
/* firstChild : return pointer on first child of a node. */
/* nextSibling : return pointer on next sibling of a node. */
/* heuristic : evaluation function of game. */
/* depth is max depth of recursion */
typedef gint (*EvalFunction) (gpointer treeGame);
typedef gboolean (*LeafFunction) (gpointer treeGame);
typedef gpointer (*FirstChildGameFunction) (gpointer treeGame);
typedef gpointer (*NextSiblingGameFunction) (gpointer treeGame);
gint gc_alphabeta (gboolean maximize,
gpointer treeGame,
EvalFunction heuristic,
gint *bestChild,
FirstChildGameFunction firstChild,
NextSiblingGameFunction nextSibling,
gint alpha,
gint beta,
gint depth
);
#endif
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