region.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 SLUDGE_REGION_H
#define SLUDGE_REGION_H

namespace Sludge {

struct ObjectType;

struct ScreenRegion {
    int x1, y1, x2, y2, sX, sY, di;
    ObjectType *thisType;
};
typedef Common::List<ScreenRegion *> ScreenRegionList;

class RegionManager {
public:
    RegionManager(SludgeEngine *vm);
    ~RegionManager();

    // Kill
    void kill();

    // Add & remove region
    bool addScreenRegion(int x1, int y1, int x2, int y2, int, int, int, int objectNum);
    void removeScreenRegion(int objectNum);

    // Save & load
    void loadRegions(Common::SeekableReadStream *stream);
    void saveRegions(Common::WriteStream *stream);

    // Draw
    void showBoxes();

    // Setter & getter
    ScreenRegion *getRegionForObject(int obj);
    ScreenRegion *getOverRegion() const { return _overRegion; }
    void setOverRegion(ScreenRegion *newRegion) { _overRegion = newRegion; }
    void updateOverRegion();
    bool isRegionChanged() const { return _lastRegion != _overRegion; }
    void updateLastRegion() { _lastRegion = _overRegion; }
    void resetOverRegion() { _overRegion = nullptr; }
    void resetLastRegion() { _lastRegion = nullptr; }

    // Freeze
    void freeze(FrozenStuffStruct *frozenStuff);
    void resotre(FrozenStuffStruct *frozenStuff);

private:
    SludgeEngine *_vm;

    ScreenRegionList *_allScreenRegions;
    ScreenRegion *_overRegion;
    ScreenRegion *_lastRegion;
};

} // End of namespace Sludge

#endif