holomap.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 TWINE_HOLOMAP_H
#define TWINE_HOLOMAP_H

#include "twine/shared.h"
#include "common/scummsys.h"

#define NUM_HOLOMAPCOLORS 32
#define HOLOMAP_PALETTE_INDEX 192

namespace Common {
class SeekableReadStream;
}

namespace TwinE {

class TwinEEngine;
class BodyData;
class AnimData;
struct ActorMoveStruct;
struct Vertex;
struct AnimTimerDataStruct;

class Holomap {
private:
    TwinEEngine *_engine;

    struct Location {
        int16 angleX;
        int16 angleY;
        int16 size;
        TextId textIndex = TextId::kNone;
        char name[30] = "";
    };

    IVec3 _holomapSurface[561];

    // original game size: 2244 (lba1)
    struct HolomapSort {
        int16 z = 0;
        uint16 projectedPosIdx = 0;
    };
    HolomapSort _holomapSort[16 * 32];

    struct HolomapProjectedPos {
        uint16 x1 = 0;
        uint16 y1 = 0;
        uint16 x2 = 0;
        uint16 y2 = 0;
    };
    HolomapProjectedPos _projectedSurfacePositions[561];
    int _projectedSurfaceIndex = 0;
    //float _distanceModifier = 1.0f;

    int32 _numLocations = 0;
    Location _locations[NUM_LOCATIONS];

    int32 _holomapPaletteIndex = 0;
    uint8 _paletteHolomap[NUMOFCOLORS * 3]{0};

    void drawHolomapText(int32 centerx, int32 top, const char *title);
    int32 searchNextArrow(int32 currentLocation, int32 dir) const;

    void drawListPos(int xRot, int yRot, int zRot, bool lower);

    void drawHoloObj(const IVec3 &angle, int32 x, int32 y);
    void computeCoorGlobe(Common::SeekableReadStream *holomapSurfaceStream);
    void computeCoorMapping();
    void computeGlobeProj();
    void drawHoloMap(uint8 *holomapImage, uint32 holomapImageSize);
    void renderHolomapVehicle(uint &frameNumber, ActorMoveStruct &move, AnimTimerDataStruct &animTimerData, BodyData &bodyData, AnimData &animData);

    int32 distance(float distance) const;
    int32 scale(float val) const;

public:
    Holomap(TwinEEngine *engine);

    void setHolomapPosition(int32 locationIdx);

    bool loadLocations();

    const char *getLocationName(int index) const;

    void clearHolomapPosition(int32 locationIdx);

    void drawHolomapTrajectory(int32 trajectoryIndex);

    void initHoloDatas();

    void holoMap();
};

} // namespace TwinE

#endif