actor_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_ACTOR_PATH_FINDER_H
#define NUVIE_PATHFINDER_ACTOR_PATH_FINDER_H

#include "ultima/nuvie/pathfinder/path_finder.h"
#include "ultima/nuvie/pathfinder/dir_finder.h"

namespace Ultima {
namespace Nuvie {

class Actor;

class ActorPathFinder: public PathFinder, public DirFinder {
protected:
    Actor *actor;

public:
    ActorPathFinder(Actor *a, MapCoord g);
    ~ActorPathFinder() override;
    void set_actor(Actor *a);

    virtual bool update_location(); /* get location from actor (use any time) */
    virtual void actor_moved(); /* the actor moved ON PATH...
                                   (use after get_next_move()) */

    bool check_loc(const MapCoord &loc) override;

    void get_closest_dir(MapCoord &rel_step); // relative dir loc->goal
    bool get_next_move(MapCoord &step) override;

protected:
    bool search_towards_target(const MapCoord &g, MapCoord &rel_step);
    bool check_dir(const MapCoord &loc, MapCoord &rel, sint8 rot = 0) override;
    bool check_dir_and_distance(const MapCoord &loc, const MapCoord &g, MapCoord &rel_step, sint8 rotate);
};

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

#endif