segmap.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 TOLTECS_SEGMAP_H
#define TOLTECS_SEGMAP_H

#include "common/array.h"

#include "toltecs/screen.h"

namespace Toltecs {

struct ScriptWalk {
    int16 y, x;
    int16 y1, x1, y2, x2;
    int16 yerror, xerror;
    int16 mulValue;
    int16 scaling;
};

struct SegmapMaskRect {
    int16 x, y;
    int16 width, height;
    int16 priority;
    Graphics::Surface *surface;
};

class SegmentMap {
public:
    SegmentMap(ToltecsEngine *vm);
    ~SegmentMap();

    void load(byte *source);

    int16 findPathRectAtPoint(int16 x, int16 y);
    void adjustPathPoint(int16 &x, int16 &y);

    void findPath(int16 *pointsArray, int16 destX, int16 destY, int16 sourceX, int16 sourceY);

    int8 getScalingAtPoint(int16 x, int16 y);
    void getRgbModifiertAtPoint(int16 x, int16 y, int16 id, byte &r, byte &g, byte &b);

    void addMasksToRenderQueue();

//protected:
public: // for debugging purposes

    struct SegmapPathRect {
        int16 x1, y1, x2, y2;
    };

    struct SegmapInfoRect {
        int16 y, x;
        int16 height, width;
        byte id;
        byte a, b, c;
        inline bool isPointInside(int16 px, int16 py) {
            return py >= y && py <= y + height && px >= x && px <= x + width;
        }
    };

    struct PathPoint {
        int16 y, x;

        PathPoint() : x(0), y(0) {}
    };

    typedef Common::Array<SegmapMaskRect> SegmapMaskRectArray;
    typedef Common::Array<SegmapPathRect> SegmapPathRectArray;
    typedef Common::Array<SegmapInfoRect> SegmapInfoRectArray;

    ToltecsEngine *_vm;

    SegmapMaskRectArray _maskRects;
    byte *_maskRectData;

    SegmapPathRectArray _pathRects;
    SegmapInfoRectArray _infoRects;

    int16 _deadEndPathRects[1000];
    uint _deadEndPathRectsCount;

    int16 _closedPathRects[1000];
    uint _closedPathRectsCount;

    PathPoint _pathNodes[1000];
    int16 _pathNodesCount;

    int16 findNextPathRect(int16 srcRectIndex, int16 destX, int16 destY);

    void loadSegmapMaskRectSurface(byte *maskData, SegmapMaskRect &maskRect);
    void freeSegmapMaskRectSurfaces();

};

} // End of namespace Toltecs

#endif /* TOLTECS_SEGMAP_H */