xwords/xwords4/common/engine.h
ehouse 6e9f5791d6 Fix bug: when using hint limits to restrict first move on empty board
limits were ignored for the vertical search.  Fix is to make
special-case treatment of first move more integrated so special limits
code isn't needed.
2008-11-22 19:32:42 +00:00

67 lines
2.2 KiB
C

/* -*-mode: C; fill-column: 78; c-basic-offset: 4; -*- */
/*
* Copyright 1997 - 2002 by Eric House (xwords@eehouse.org). All rights reserved.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _ENGINE_H_
#define _ENGINE_H_
#include "comtypes.h"
#include "dictnry.h"
#ifdef CPLUS
extern "C" {
#endif
#ifdef XWFEATURE_SEARCHLIMIT
typedef struct BdHintLimits {
XP_U16 left;
XP_U16 top;
XP_U16 right;
XP_U16 bottom;
} BdHintLimits;
#endif
XP_U16 engine_getScoreCache( EngineCtxt* engine, XP_U16 row );
EngineCtxt* engine_make( MPFORMAL XW_UtilCtxt* util, XP_Bool isRobot );
void engine_writeToStream( EngineCtxt* ctxt, XWStreamCtxt* stream );
EngineCtxt* engine_makeFromStream( MPFORMAL XWStreamCtxt* stream,
XW_UtilCtxt* util, XP_Bool isRobot );
void engine_init( EngineCtxt* ctxt );
void engine_reset( EngineCtxt* ctxt );
void engine_destroy( EngineCtxt* ctxt );
#define NO_SCORE_LIMIT 10000 /* for targetScore */
XP_Bool engine_findMove( EngineCtxt* ctxt, const ModelCtxt* model,
const DictionaryCtxt* dict, const Tile* tiles,
XP_U16 nTiles,
#ifdef XWFEATURE_SEARCHLIMIT
const BdHintLimits* boardLimits,
XP_Bool useTileLimits,
#endif
XP_U16 targetScore, XP_Bool* canMove,
MoveInfo* result );
XP_Bool engine_check( DictionaryCtxt* dict, Tile* buf, XP_U16 buflen );
#ifdef CPLUS
}
#endif
#endif /* _ENGINE_H_ */