81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef NUVIE_PATHFINDER_PATH_FINDER_H
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#define NUVIE_PATHFINDER_PATH_FINDER_H
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#include "ultima/nuvie/core/map.h"
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namespace Ultima {
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namespace Nuvie {
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class Path;
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class PathFinder {
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protected:
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MapCoord start, goal, loc; /* source, destination, current location */
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Path *search; /* contains path-search algorithms, and
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game-specific step costs */
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void new_search(Path *new_path);
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// bool is_hazardous(MapCoord &loc); will have to check objects and tiles
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public:
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PathFinder();
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PathFinder(const MapCoord &s, const MapCoord &g);
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virtual ~PathFinder();
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void set_search(Path *new_path) {
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new_search(new_path);
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}
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virtual void set_start(const MapCoord &s);
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virtual void set_goal(const MapCoord &g);
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virtual void set_location(const MapCoord &l) {
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loc = l;
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}
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virtual MapCoord get_location() {
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return loc;
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}
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virtual MapCoord get_goal() {
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return goal;
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}
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virtual bool reached_goal() {
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return (loc.x == goal.x && loc.y == goal.y
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&& loc.z == goal.z);
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}
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virtual bool check_dir(const MapCoord &from, MapCoord &rel, sint8 unused = 0);
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virtual bool check_loc(const MapCoord &loc) = 0;
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bool check_loc(uint16 x, uint16 y, uint8 z);
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virtual bool find_path(); /* get path to goal if one doesn't already exist */
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virtual bool have_path(); /* a working path exists */
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virtual bool is_path_clear(); /* recheck each location in path */
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virtual bool get_next_move(MapCoord &step) = 0;
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};
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} // End of namespace Nuvie
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} // End of namespace Ultima
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#endif
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