toon.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/>.
 *
 *
 * This file is dual-licensed.
 * In addition to the GPLv3 license mentioned above, MojoTouch has
 * exclusively licensed this code on March 23th, 2024, to be used in
 * closed-source products.
 * Therefore, any contributions (commits) to it will also be dual-licensed.
 *
 */

#ifndef TOON_TOON_H
#define TOON_TOON_H

#include "engines/engine.h"
#include "graphics/surface.h"
#include "common/random.h"
#include "common/error.h"
#include "toon/resource.h"
#include "toon/script.h"
#include "toon/script_func.h"
#include "toon/state.h"
#include "toon/picture.h"
#include "toon/anim.h"
#include "toon/movie.h"
#include "toon/font.h"
#include "toon/text.h"
#include "toon/audio.h"
#include "toon/console.h"

namespace Common {
class MemoryWriteStreamDynamic;
}

struct ADGameDescription;

#define TOON_DAT_VER_MAJ 0  // 1 byte
#define TOON_DAT_VER_MIN 4  // 1 byte
#define TOON_SAVEGAME_VERSION 6
#define DATAALIGNMENT 4
#define MAX_SAVE_SLOT 99

#define TOON_SCREEN_WIDTH 640
#define TOON_SCREEN_HEIGHT 400
#define TOON_BACKBUFFER_WIDTH 1280
#define TOON_BACKBUFFER_HEIGHT 400

namespace Toon {

enum ToonGameType {
    GType_TOON = 1
};

enum ToonDebugChannels {
    kDebugAnim      = 1 <<  0,
    kDebugCharacter = 1 <<  1,
    kDebugAudio     = 1 <<  2,
    kDebugHotspot   = 1 <<  3,
    kDebugFont      = 1 <<  4,
    kDebugPath      = 1 <<  5,
    kDebugMovie     = 1 <<  6,
    kDebugPicture   = 1 <<  7,
    kDebugResource  = 1 <<  8,
    kDebugState     = 1 <<  9,
    kDebugTools     = 1 << 10,
    kDebugText      = 1 << 11
};

class Picture;
class Movie;
class Hotspots;
class Character;
class CharacterDrew;
class CharacterFlux;
class FontRenderer;
class TextResource;
class AudioManager;
class PathFinding;

class ToonEngine : public Engine {
public:
    ToonEngine(OSystem *syst, const ADGameDescription *gameDescription);
    ~ToonEngine() override;

    const ADGameDescription *_gameDescription;
    Common::Language _language;
    byte   _numVariant;
    byte   _gameVariant;
    char **_locationDirNotVisited;
    char **_locationDirVisited;
    char **_specialInfoLine;

    Common::Error run() override;
    bool showMainMenu(bool &loadedGame);
    bool showOptions();
    bool showQuitConfirmationDialogue();
    void init();
    bool loadToonDat();
    char **loadTextsVariants(Common::File &in);
    void unloadTextsVariants(char **texts);
    void unloadToonDat();
    void setPaletteEntries(uint8 *palette, int32 offset, int32 num);
    void fixPaletteEntries(uint8 *palette, int num);
    void flushPalette(bool deferFlushToNextRender = true);
    void parseInput();
    void initChapter();
    void initFonts();
    void setFont(bool alternative);
    void loadScene(int32 SceneId, bool forGameLoad = false);
    void exitScene();
    void loadCursor();
    void setCursor(int32 type, bool inventory = false, int32 offsetX = 0, int offsetY = 0);
    void loadAdditionalPalette(const Common::Path &fileName, int32 mode);
    void setupGeneralPalette();
    void render();
    void update(int32 timeIncrement);
    void doFrame();
    void updateAnimationSceneScripts(int32 timeElapsed);
    void updateCharacters(int32 timeElapsed);
    void setSceneAnimationScriptUpdate(bool enable);
    bool isUpdatingSceneAnimation();
    int32 getCurrentUpdatingSceneAnimation();
    int32 randRange(int32 minStart, int32 maxStart);
    void selectHotspot();
    void clickEvent();
    int32 runEventScript(int32 x, int32 y, int32 mode, int32 id, int32 scriptId);
    void flipScreens();
    void drawInfoLine();
    void drawConversationLine();
    const char *getLocationString(int32 locationId, bool alreadyVisited);
    int32 getScaleAtPoint(int32 x, int32 y);
    int32 getZAtPoint(int32 x, int32 y);
    int32 getLayerAtPoint(int32 x, int32 y);
    int32 characterTalk(int32 dialogid, bool blocking = true);
    int32 simpleCharacterTalk(int32 dialogid);
    void sayLines(int numLines, int dialogId);
    void haveAConversation(int32 convId);
    void processConversationClick(Conversation *conv, int32 status);
    int32 runConversationCommand(int16 **command);
    void prepareConversations();
    void drawConversationIcons();
    void simpleUpdate(bool waitCharacterToTalk = false);
    int32 waitTicks(int32 numTicks, bool breakOnMouseClick);
    void copyToVirtualScreen(bool updateScreen = true);
    void getMouseEvent();
    int32 showInventory();
    void drawSack();
    void addItemToInventory(int32 item);
    void deleteItemFromInventory(int32 item);
    void replaceItemFromInventory(int32 item, int32 destItem);
    void rearrangeInventory();
    void createMouseItem(int32 item);
    void deleteMouseItem();
    void showCutaway(const Common::Path &cutawayPicture);
    void hideCutaway();
    void drawPalette();
    void newGame();
    void playSoundWrong();
    void playSFX(int32 id, int32 volume);
    void storeRifFlags(int32 location);
    void restoreRifFlags(int32 location);
    void getTextPosition(int32 characterId, int32 *retX, int32 *retY);
    int32 getConversationFlag(int32 locationId, int32 param);
    int32 getSpecialInventoryItem(int32 item);
    Character *getCharacterById(int32 charId);
    Common::String getSavegameName(int nr);
    bool loadGame(int32 slot);
    bool saveGame(int32 slot, const Common::String &saveGameDesc);
    void fadeIn(int32 numFrames);
    void fadeOut(int32 numFrames);
    void initCharacter(int32 characterId, int32 animScriptId, int32 animToPlayId, int32 sceneAnimationId);
    int32 handleInventoryOnFlux(int32 itemId);
    int32 handleInventoryOnInventory(int32 itemDest, int32 itemSrc);
    int32 handleInventoryOnDrew(int32 itemId);
    int32 pauseSceneAnimationScript(int32 animScriptId, int32 tickToWait);
    void updateTimer(int32 timeIncrement);
    Common::Path createRoomFilename(const Common::String &name);
    void createShadowLUT();
    void playTalkAnimOnCharacter(int32 animID, int32 characterId, bool talker);
    void updateScrolling(bool force, int32 timeIncrement);
    void enableTimer(int32 timerId);
    void setTimer(int32 timerId, int32 timerWait);
    void disableTimer(int32 timerId);
    void updateTimers();
    void makeLineNonWalkable(int32 x, int32 y, int32 x2, int32 y2);
    void makeLineWalkable(int32 x, int32 y, int32 x2, int32 y2);
    void renderInventory();
    void viewInventoryItem(const Common::Path &str, int32 lineId, int32 itemDest);
    void storePalette();
    void restorePalette();
    const char *getSpecialConversationMusic(int32 locationId);
    void playRoomMusic();
    void waitForScriptStep();
    void doMagnifierEffect();
    void drawCustomText(int16 x, int16 y, const char *line, Graphics::Surface *frame, byte color);
    bool showConversationText() const;
    bool canSaveGameStateCurrently(Common::U32String *msg = nullptr) override;
    bool canLoadGameStateCurrently(Common::U32String *msg = nullptr) override;
    void pauseEngineIntern(bool pause) override;
    void syncSoundSettings() override;

    Resources *resources() {
        return _resources;
    }

    State *state() {
        return _gameState;
    }

    Graphics::Surface &getMainSurface() {
        return *_mainSurface;
    }

    Picture *getMask() {
        return _currentMask;
    }

    Picture *getPicture() {
        return _currentPicture;
    }

    AnimationManager *getAnimationManager() {
        return _animationManager;
    }

    Movie *getMoviePlayer() {
        return _moviePlayer;
    }

    SceneAnimation *getSceneAnimation(int32 id) {
        return &_sceneAnimations[id];
    }

    SceneAnimationScript *getSceneAnimationScript(int32 id) {
        return &_sceneAnimationScripts[id];
    }

    EMCInterpreter *getScript() {
        return _script;
    }

    Hotspots *getHotspots() {
        return _hotspots;
    }

    Character *getCharacter(int32 charId) {
        return _characters[charId];
    }

    uint8 *getShadowLUT() {
        return _shadowLUT;
    }

    int32 getCurrentLineToSay() {
        return _currentTextLineId;
    }

    int32 getCurrentCharacterTalking() {
        return _currentTextLineCharacterId;
    }

    CharacterDrew *getDrew() {
        return (CharacterDrew *)_drew;
    }

    CharacterFlux *getFlux() {
        return (CharacterFlux *)_flux;
    }

    int32 getTickLength() {
        return _tickLength;
    }

    int32 getOldMilli() {
        return _oldTimer2;
    }

    AudioManager *getAudioManager() {
        return _audioManager;
    }

    int32 getScriptRegionNested() {
        return _currentScriptRegion;
    }

    int32 getMouseX() {
        return _mouseX;
    }

    int32 getMouseY() {
        return _mouseY;
    }

    PathFinding *getPathFinding() {
        return _pathFinding;
    }

    bool isEnglishDemo() {
        return _isEnglishDemo;
    }

    Common::WriteStream *getSaveBufferStream();

    bool shouldQuitGame() const {
        return _shouldQuit;
    }

    Common::Error saveGameState(int slot, const Common::String &desc, bool isAutosave = false) override {
        return (saveGame(slot, desc) ? Common::kNoError : Common::kWritingFailed);
    }

    Common::Error loadGameState(int slot) override {
        return (loadGame(slot) ? Common::kNoError : Common::kReadingFailed);
    }

    bool hasFeature(EngineFeature f) const override {
        return
            (f == kSupportsSubtitleOptions) ||
            (f == kSupportsReturnToLauncher) ||
            (f == kSupportsLoadingDuringRuntime) ||
            (f == kSupportsSavingDuringRuntime);
    }

    void dirtyAllScreen();
    void addDirtyRect(int32 left, int32 top, int32 right, int32 bottom);
    void clearDirtyRects();

protected:
    int32 _tickLength;
    Resources *_resources;
    TextResource *_genericTexts;
    TextResource *_roomTexts;
    State *_gameState;
    uint8 *_finalPalette;
    uint8 *_backupPalette;
    uint8 *_additionalPalette1;
    uint8 *_additionalPalette2;
    bool _additionalPalette2Present;
    uint8 *_cutawayPalette;
    uint8 *_universalPalette;
    uint8 *_fluxPalette;
    uint8 *_roomScaleData;
    uint8 *_shadowLUT;

    Picture *_currentPicture;
    Picture *_currentMask;
    Picture *_currentCutaway;
    Picture *_inventoryPicture;
    PathFinding *_pathFinding;

    EMCInterpreter *_script;
    EMCData _scriptData;
    EMCState _scriptState[4];
    int32 _currentScriptRegion; // script region ( nested script run )

    ScriptFunc *_script_func;

    SceneAnimation _sceneAnimations[64];
    SceneAnimationScript _sceneAnimationScripts[64];
    int32 _lastProcessedSceneScript;
    bool _animationSceneScriptRunFlag;
    bool _updatingSceneScriptRunFlag;

    Graphics::Surface *_mainSurface;
    Common::Array<Common::Rect> _dirtyRects;
    Common::Array<Common::Rect> _oldDirtyRects;

    bool _dirtyAll;


    AnimationInstance *_cursorAnimationInstance;
    Animation *_cursorAnimation;
    Animation *_dialogIcons;
    Animation *_inventoryIcons;
    Animation *_inventoryIconSlots;
    int32 _cursorOffsetX;
    int32 _cursorOffsetY;

    char *_currentTextLine;
    int32 _currentTextLineId;
    int32 _currentTextLineX;
    int32 _currentTextLineY;
    int32 _currentTextLineCharacterId;

    int32 _oldScrollValue;

    AnimationManager *_animationManager;

    Character *_characters[32];
    Character *_drew;
    Character *_flux;

    Hotspots *_hotspots;
    int32 _currentHotspotItem;

    bool _shouldQuit;
    int32 _scriptStep;

    int32 _mouseX;
    int32 _mouseY;
    int32 _mouseButton;
    int32 _lastMouseButton;

    int32 _oldTimer;
    int32 _oldTimer2;
    int32 _lastRenderTime;

    Movie *_moviePlayer;

    Common::RandomSource _rnd;

    FontRenderer *_fontRenderer;
    Animation *_fontToon;
    Animation *_fontEZ;
    Animation *_currentFont;
    Common::String *_currentDemoFont;

    AudioManager *_audioManager;

    Common::MemoryWriteStreamDynamic *_saveBufferStream;

    int16 *_conversationData;

    bool _firstFrame;
    bool _isDemo;
    bool _isEnglishDemo;
    bool _showConversationText;
    int  _textSpeed;
    bool _useAlternativeFont;
    bool _needPaletteFlush;
    bool _noMusicDriver; // If "Music Device" is set to "No Music" from Audio tab
};

} // End of namespace Toon

#endif