grid.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 QUEEN_GRID_H
#define QUEEN_GRID_H

#include "common/util.h"
#include "queen/structs.h"

namespace Queen {

enum GridScreen {
    GS_ROOM  = 0,
    GS_PANEL = 1,
    GS_COUNT = 2
};

class QueenEngine;

class Grid {
public:

    Grid(QueenEngine *vm);
    ~Grid();

    void readDataFrom(uint16 numObjects, uint16 numRooms, byte *&ptr);

    void setZone(GridScreen screen, uint16 zoneNum, uint16 x1, uint16 y1, uint16 x2, uint16 y2);

    void setZone(GridScreen screen, uint16 zoneNum, const Box &box);

    uint16 findZoneForPos(GridScreen screen, uint16 x, uint16 y) const;

    uint16 findAreaForPos(GridScreen screen, uint16 x, uint16 y) const;

    void clear(GridScreen screen);

    void setupNewRoom(uint16 room, uint16 firstRoomObjNum);

    void setupPanel();

    void drawZones();

    const Box *zone(GridScreen screen, uint16 index) const;

    Verb findVerbUnderCursor(int16 cursorx, int16 cursory) const;

    uint16 findObjectUnderCursor(int16 cursorx, int16 cursory) const;

    uint16 findObjectNumber(uint16 zoneNum) const;

    uint16 findScale(uint16 x, uint16 y) const;

    Area *area(int room, int num) const { return &_area[room][num]; }

    uint16 areaMax(int room) const { return _areaMax[room]; }

    uint16 objMax(int room) const { return _objMax[room]; }

    void saveState(byte *&ptr);
    void loadState(uint32 ver, byte *&ptr);

    enum {
        MAX_ZONES_NUMBER = 32,
        MAX_AREAS_NUMBER = 11
    };


private:

    struct ZoneSlot {
        bool valid;
        Box box;
    };

    ZoneSlot _zones[GS_COUNT][MAX_ZONES_NUMBER];

    int16 *_objMax;

    int16 *_areaMax;

    Area (*_area)[MAX_AREAS_NUMBER];

    uint16 _numRoomAreas;

    Box *_objectBox;

    QueenEngine *_vm;
};


} // End of namespace Queen

#endif