sched_path_finder.h

/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef NUVIE_PATHFINDER_SCHED_PATH_FINDER_H
#define NUVIE_PATHFINDER_SCHED_PATH_FINDER_H

#include "ultima/nuvie/pathfinder/actor_path_finder.h"

namespace Ultima {
namespace Nuvie {

/* Long-range pathfinder for NPCs.
 */
class SchedPathFinder: public ActorPathFinder {
protected:
    uint32 prev_step_i, next_step_i; /* step counters */

public:
    /* Pass 'path_type' to define search rules and methods to be used. The
       PathFinder is responsible for deleting it when finished. */
    SchedPathFinder(Actor *a, MapCoord g, Path *path_type);
    ~SchedPathFinder() override;

    bool get_next_move(MapCoord &step) override; /* returns the next step in the path */
    bool find_path() override; /* gets a NEW path from location->goal */
    void actor_moved() override; /* update location and step counters */

    bool check_loc(const MapCoord &loc) override; // ignores other actors
protected:
    bool is_location_in_path();
    void incr_step();
};

} // End of namespace Nuvie
} // End of namespace Ultima

#endif