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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef PINK_WALK_SHORTEST_PATH_H
#define PINK_WALK_SHORTEST_PATH_H
#include "common/array.h"
namespace Pink {
class WalkLocation;
class WalkMgr;
class WalkShortestPath {
public:
WalkShortestPath(WalkMgr *manager);
WalkLocation *next(WalkLocation *start, WalkLocation *destination);
private:
void add(WalkLocation *wl, double val, WalkLocation *nearest);
void remove(WalkLocation *location);
WalkLocation *build();
WalkLocation *getNearestNeighbor(WalkLocation *location);
WalkLocation *findNearestNeighbor(WalkLocation *location);
double getLengthToNearestNeigbor(WalkLocation *location);
double getWeight(WalkLocation *location);
void addLocationsToVisit();
bool isLocationVisited(WalkLocation *location);
WalkMgr *_manager;
Common::Array<WalkLocation *> _locations;
Common::Array<WalkLocation *> _toVisit;
Common::Array<double> _weight;
Common::Array<WalkLocation *> _visited;
Common::Array<WalkLocation *> _nearestNeigbor;
};
} // End of namespace Pink
#endif
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