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/* ScummVM - Scumm Interpreter
* Copyright (C) 2003-2005 The ScummVM project
*
* 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.
*
* $Header$
*
*/
#ifndef AUTOROUTE_H
#define AUTOROUTE_H
#include "stdafx.h"
#include "common/scummsys.h"
namespace Sky {
struct Compact;
class Grid;
class SkyCompact;
class AutoRoute {
public:
AutoRoute(Grid *pGrid, SkyCompact *compact);
~AutoRoute(void);
uint16 autoRoute(Compact *cpt);
private:
uint16 checkBlock(uint16 *blockPos);
void clipCoordX(uint16 x, uint8 &blkX, int16 &initX);
void clipCoordY(uint16 y, uint8 &blkY, int16 &initY);
void initWalkGrid(uint8 screen, uint8 width);
bool calcWalkGrid(uint8 startX, uint8 startY, uint8 destX, uint8 destY);
uint16 *makeRouteData(uint8 startX, uint8 startY, uint8 destX, uint8 destY);
uint16 *checkInitMove(uint16 *data, int16 initStaX);
Grid *_grid;
SkyCompact *_skyCompact;
uint16 *_routeGrid;
uint16 *_routeBuf;
static const int16 _routeDirections[4];
static const uint16 _logicCommands[4];
};
} // End of namespace Sky
#endif // AUTOROUTE_H
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