eclipse.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/>.
 *
 */

#include "common/file.h"

#include "freescape/music.h"
#include "freescape/sound.h"

namespace Freescape {

class EclipseC64SFXPlayer;

enum EclipseReleaseFlags {
    GF_ZX_DEMO_CRASH = (1 << 0),
    GF_ZX_DEMO_MICROHOBBY = (1 << 1),
};

enum {
    kVariableEclipse2SphinxParts = 1,
    kVariableEclipseAnkhs = 32,
};

class EclipseEngine : public FreescapeEngine {
public:
    EclipseEngine(OSystem *syst, const ADGameDescription *gd);
    ~EclipseEngine() override;

    void gotoArea(uint16 areaID, int entranceID) override;

    void borderScreen() override;
    void titleScreen() override;
    void drawInfoMenu() override;
    void drawIndicator(Graphics::Surface *surface, int xPosition, int yPosition, int separation);

    void drawSensorShoot(Sensor *sensor) override;

    void loadAssets() override;
    void loadAssetsDOSFullGame() override;
    void pressedKey(const int keycode) override;
    void releasedKey(const int keycode) override;

    uint32 _initialEnergy;
    uint32 _initialShield;

    int _soundIndexStartFalling;
    int _soundIndexEndFalling;

    bool _resting;
    bool _flashlightOn;
    bool _atariAreaDark;
    int _lastThirtySeconds;
    int _lastFiveSeconds;
    int _lastHeartbeatSoundTick;
    int _lastHeartIndicatorFrame;

    int _lastSecond;
    void updateTimeVariables() override;

    void initDOS();
    void initCPC();
    void initZX();
    void initC64();
    void initAmigaAtari();

    void loadAssetsZXFullGame() override;
    void loadAssetsCPCFullGame() override;
    void loadAssetsC64FullGame() override;
    void loadAssetsAmigaFullGame() override;
    void loadAssetsAtariFullGame() override;
    void loadAssetsCPCDemo() override;
    void loadAssetsZXDemo() override;

    void initKeymaps(Common::Keymap *engineKeyMap, Common::Keymap *infoScreenKeyMap, const char *target) override;
    void initGameState() override;
    void executePrint(FCLInstruction &instruction) override;

    void drawBackground() override;
    void drawDOSUI(Graphics::Surface *surface) override;
    void drawCPCUI(Graphics::Surface *surface) override;
    void drawC64UI(Graphics::Surface *surface) override;
    void drawZXUI(Graphics::Surface *surface) override;
    void drawAmigaAtariSTUI(Graphics::Surface *surface) override;
    void drawAnalogClock(Graphics::Surface *surface, int x, int y, uint32 colorHand1, uint32 colorHand2, uint32 colorBack);
    void drawAnalogClockHand(Graphics::Surface *surface, int x, int y, double degrees, double magnitude, uint32 color);
    void drawCompass(Graphics::Surface *surface, int x, int y, double degrees, double magnitude, uint32 color);
    int atariCompassPhaseFromRotationY(float rotationY) const;
    int atariCompassTargetPhaseFromYaw(float yaw, int referencePhase) const;
    bool isAtariDarkArea(uint16 areaID) const;
    void onRotate(float xoffset, float yoffset, float zoffset) override;
    void drawEclipseIndicator(Graphics::Surface *surface, int x, int y, uint32 color1, uint32 color2, uint32 color3 = 0);
    Common::String getScoreString(int score);
    void drawScoreString(int score, int x, int y, uint32 front, uint32 back, Graphics::Surface *surface);

    void loadHeartFramesCPC(Common::SeekableReadStream *file, int restOffset, int beatOffset);
    void loadHeartFramesZX(Common::SeekableReadStream *file, int restOffset, int beatOffset);
    void loadHeartFramesDOS(Common::SeekableReadStream *file, int restOffset, int beatOffset);
    void drawHeartIndicator(Graphics::Surface *surface, int x, int y);

    // CPC heart frames stored as indexed (CLUT8) for per-area re-paletting
    Common::Array<Graphics::ManagedSurface *> _heartFramesCPCIndexed;
    void updateHeartFramesCPC();

    Common::Array<byte> _musicData; // TEMUSIC.ST TEXT segment (Atari ST)
    Common::Array<byte> _c64MusicData;
    EclipseC64SFXPlayer *_playerC64Sfx;
    bool _c64UseSFX;
    void toggleC64Sound();

    MusicPlayer *_playerMusic;
    void restartBackgroundMusic();
    void stopBackgroundMusic();

    // Atari ST UI sprites (extracted from binary, pre-converted to target format)
    Font _fontScore; // Font B (10 score digit glyphs, 4-plane at $249BE)
    Common::Array<Graphics::ManagedSurface *> _eclipseSprites; // 2 eclipse animation frames (16x13)
    Common::Array<Graphics::ManagedSurface *> _eclipseProgressSprites;  // 16 eclipse animation frames (16x16)
    Graphics::ManagedSurface *_compassBackground; // Atari ST compass background at $20986
    Graphics::ManagedSurface *_atariWaterBody; // Atari ST water body bitmap at $2003C
    Common::Array<Graphics::ManagedSurface *> _compassSprites; // signed Atari compass needle bank addressed by the $1542 lookup table
    Common::Array<Graphics::ManagedSurface *> _lanternLightSprites;  // 6 lantern light animation frames (32x6)
    Common::Array<Graphics::ManagedSurface *> _lanternSwitchSprites; // 2 lantern on/off frames (32x23)
    Common::Array<Graphics::ManagedSurface *> _shootSprites;         // 2 shooting crosshair frames (32x25, 48x25)
    Common::Array<Graphics::ManagedSurface *> _ankhSprites;          // 5 ankh fade-in frames (16x15)
    Common::Array<uint16> _atariDarkAreas;                           // Atari ST dark areas from the $2A520 runtime table
    byte _eclipseFadePalettes[6][16 * 3];                            // 6 brightness levels from prog $10EB6 (post LSR.L #1)
    void applyEclipseFadePalette(uint16 areaID, int brightnessLevel);
    Common::Array<uint16> _atariWaterSurfacePixels;                  // Atari ST water surface row words at $2024C
    Common::Array<uint16> _atariWaterSurfaceMask;                    // Atari ST water surface mask words at $2025C
    Common::Array<Graphics::ManagedSurface *> _soundToggleSprites;   // 5 sound on/off toggle frames (16x11)
    int8 _compassLookup[72];  // signed Atari ST phase-to-frame lookup table
    int _atariCompassPhase;
    int _atariCompassTargetPhase;
    float _atariCompassTargetRemainder;
    int _atariCompassLastUpdateTick;
    bool _atariCompassPhaseInitialized;
    int _atariLanternLightFrame;
    int _atariLanternAnimationDirection;
    int _atariLanternLastUpdateTick;
    int _lanternBatteryLevel; // 5=full, 0=nearly dead, -1=dead (non-rechargeable)

    // Atari ST on-screen control hotspots (from binary hotspot table at prog $869A)
    bool onScreenControls(Common::Point mouse) override;

    Common::Rect _lookUpArea;
    Common::Rect _lookDownArea;
    Common::Rect _turnLeftArea;
    Common::Rect _turnRightArea;
    Common::Rect _uTurnArea;
    Common::Rect _faceForwardArea;
    Common::Rect _moveBackwardArea;
    Common::Rect _stepBackwardArea;
    Common::Rect _interactArea;
    Common::Rect _infoDisplayArea;
    Common::Rect _lanternArea;
    Common::Rect _restArea;
    Common::Rect _stepSizeArea;
    Common::Rect _heightArea;
    Common::Rect _saveGameArea;
    Common::Rect _loadGameArea;

    bool triggerWinCondition() override;
    bool checkIfGameEnded() override;
    void endGame() override;
    void playSoundFx(int index, bool sync, Sound::Type type = Sound::kTypeNormal) override;

    Common::Error saveGameStreamExtended(Common::WriteStream *stream, bool isAutosave = false) override;
    Common::Error loadGameStreamExtended(Common::SeekableReadStream *stream) override;

private:
    Sound *_soundFx;
};

}