runtime.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 VCRUISE_RUNTIME_H
#define VCRUISE_RUNTIME_H

#include "graphics/pixelformat.h"

#include "common/hashmap.h"
#include "common/keyboard.h"
#include "common/mutex.h"
#include "common/rect.h"

#include "vcruise/detection.h"

class OSystem;
class MidiDriver;

namespace Common {

class MemoryReadStream;
class RandomSource;
class ReadStream;
class WriteStream;

} // End of namespace Commom

namespace Audio {

class AudioStream;
class SeekableAudioStream;
class LoopingAudioStream;

} // End of namespace Audio

namespace Graphics {

struct PixelFormat;
struct WinCursorGroup;
class ManagedSurface;
class Font;
class Cursor;

} // End of namespace Graphics

namespace Video {

class AVIDecoder;

} // End of namespace Video

namespace Image {

class AniDecoder;

} // End of namespace Image

namespace VCruise {

static const uint kNumDirections = 8;
static const uint kNumHighPrecisionDirections = 256;
static const uint kHighPrecisionDirectionMultiplier = kNumHighPrecisionDirections / kNumDirections;
static const uint kNumStartConfigs = 3;

enum StartConfig {
    kStartConfigCheatMenu,
    kStartConfigInitial,
    kStartConfigAlt,
};

class AudioPlayer;
class CircuitPuzzle;
class MidiPlayer;
class MenuInterface;
class MenuPage;
class RuntimeMenuInterface;
class TextParser;
struct ScriptSet;
struct Script;
struct IScriptCompilerGlobalState;
struct Instruction;
struct RoomScriptSet;
struct SoundLoopInfo;
class SampleLoopAudioStream;
struct AD2044Graphics;

enum GameState {
    kGameStateBoot,                         // Booting the game
    kGameStateWaitingForAnimation,          // Waiting for a blocking animation with no stop frame to complete, then resuming script
    kGameStateWaitingForAnimationToDelay,   // Waiting for a blocking animation with no stop frame to complete, then going to delay
    kGameStateWaitingForFacing,             // Waiting for a blocking animation with a stop frame to complete, then resuming script
    kGameStateWaitingForFacingToAnim,       // Waiting for a blocking animation to complete, then playing _postFacingAnimDef and switching to kGameStateWaitingForAnimation
    kGameStateQuit,                         // Quitting
    kGameStateIdle,                         // Waiting for input events
    kGameStateDelay,                        // Waiting for delay completion time
    kGameStateScript,                       // Running a script
    kGameStateScriptReset,                  // Resetting script interpreter into a new script
    kGameStateGyroIdle,                     // Waiting for mouse movement to run a gyro
    kGameStateGyroAnimation,                // Animating a gyro

    kGameStatePanLeft,
    kGameStatePanRight,

    kGameStateMenu,
};

struct AD2044AnimationDef {
    byte roomID;
    byte lookupID;
    short fwdAnimationID;
    short revAnimationID;
};

struct AnimationDef {
    AnimationDef();

    int animNum;    // May be negative if reversed
    uint firstFrame;
    uint lastFrame; // Inclusive

    Common::Rect constraintRect;

    Common::String animName;
};

struct RoomDef {
    Common::HashMap<Common::String, AnimationDef> animations;
    Common::HashMap<Common::String, uint> vars;
    Common::HashMap<Common::String, int> values;
    Common::HashMap<Common::String, Common::String> texts;
    Common::HashMap<Common::String, int> sounds;

    Common::String name;
};

struct InteractionDef {
    InteractionDef();

    Common::Rect rect;
    uint16 interactionID;
    uint16 objectType;
};

struct MapScreenDirectionDef {
    Common::Array<InteractionDef> interactions;
};

class MapLoader {
public:
    virtual ~MapLoader();

    virtual void setRoomNumber(uint roomNumber) = 0;
    virtual const MapScreenDirectionDef *getScreenDirection(uint screen, uint direction) = 0;
    virtual void unload() = 0;

protected:
    static Common::SharedPtr<MapScreenDirectionDef> loadScreenDirectionDef(Common::ReadStream &stream);
};

struct ScriptEnvironmentVars {
    ScriptEnvironmentVars();

    uint panInteractionID;
    uint clickInteractionID;
    uint fpsOverride;
    uint lastHighlightedItem;
    uint animChangeFrameOffset;
    uint animChangeNumFrames;
    bool lmb;
    bool lmbDrag;
    bool esc;
    bool exitToMenu;
    bool animChangeSet;
    bool isEntryScript;
    bool puzzleWasSet;
};

struct SfxSound {
    Common::Array<byte> soundData;
    Common::SharedPtr<Common::MemoryReadStream> memoryStream;
    Common::SharedPtr<Audio::SeekableAudioStream> audioStream;
    Common::SharedPtr<AudioPlayer> audioPlayer;
};

struct SfxPlaylistEntry {
    SfxPlaylistEntry();

    uint frame;
    Common::SharedPtr<SfxSound> sample;
    int8 balance;
    int32 volume;
    bool isUpdate;
};

struct SfxPlaylist {
    SfxPlaylist();

    Common::Array<SfxPlaylistEntry> entries;
};

struct SfxData {
    SfxData();

    void reset();
    void load(Common::SeekableReadStream &stream, Audio::Mixer *mixer);

    typedef Common::HashMap<Common::String, Common::SharedPtr<SfxPlaylist> > PlaylistMap_t;
    typedef Common::HashMap<Common::String, Common::SharedPtr<SfxSound> > SoundMap_t;
    PlaylistMap_t playlists;
    SoundMap_t sounds;
};

struct SoundParams3D {
    SoundParams3D();

    uint minRange;
    uint maxRange;

    // Not sure what this does.  It's always shorter than the min range but after many tests, I've been
    // unable to detect any level changes from altering this parameter.
    uint unknownRange;

    void write(Common::WriteStream *stream) const;
    void read(Common::ReadStream *stream);
};


struct SoundCache {
    SoundCache();
    ~SoundCache();

    Common::SharedPtr<SoundLoopInfo> loopInfo;

    Common::SharedPtr<Audio::SeekableAudioStream> stream;
    Common::SharedPtr<SampleLoopAudioStream> loopingStream;
    Common::SharedPtr<AudioPlayer> player;

    bool isLoopActive;
};

struct SoundInstance {
    SoundInstance();
    ~SoundInstance();

    Common::String name;
    Common::SharedPtr<SoundCache> cache;

    uint id;

    int32 rampStartVolume;
    int32 rampEndVolume;
    int32 rampRatePerMSec;
    uint32 rampStartTime;
    bool rampTerminateOnCompletion;

    int32 volume;
    int32 balance;

    uint effectiveVolume;
    int32 effectiveBalance;

    bool is3D;
    bool isLooping;
    bool isSpeech;
    bool restartWhenAudible;
    bool tryToLoopWhenRestarted;
    int32 x;
    int32 y;

    SoundParams3D params3D;

    uint32 startTime;
    uint32 endTime;
    uint32 duration;
};

struct RandomAmbientSound {
    RandomAmbientSound();

    Common::String name;

    int32 volume;
    int32 balance;

    uint frequency;
    uint sceneChangesRemaining;

    void write(Common::WriteStream *stream) const;
    void read(Common::ReadStream *stream);
};

struct TriggeredOneShot {
    TriggeredOneShot();

    bool operator==(const TriggeredOneShot &other) const;
    bool operator!=(const TriggeredOneShot &other) const;

    uint soundID;
    uint uniqueSlot;

    void write(Common::WriteStream *stream) const;
    void read(Common::ReadStream *stream);
};

struct ScoreSectionDef {
    ScoreSectionDef();

    Common::String musicFileName;   // If empty, this is silent
    Common::String nextSection;
    int32 volumeOrDurationInSeconds;
};

struct ScoreTrackDef {
    typedef Common::HashMap<Common::String, ScoreSectionDef> ScoreSectionMap_t;

    ScoreSectionMap_t sections;
};

struct StartConfigDef {
    StartConfigDef();

    uint disc;
    uint room;
    uint screen;
    uint direction;
};

struct StaticAnimParams {
    StaticAnimParams();

    uint initialDelay;
    uint repeatDelay;
    bool lockInteractions;

    void write(Common::WriteStream *stream) const;
    void read(Common::ReadStream *stream);
};

struct StaticAnimation {
    StaticAnimation();

    AnimationDef animDefs[2];
    StaticAnimParams params;

    uint32 nextStartTime;
    uint currentAlternation;
};

struct FrameData {
    FrameData();

    uint32 frameIndex;
    uint16 areaFrameIndex;
    int8 roomNumber;
    uint8 frameType;    // 0x01 = Keyframe, 0x02 = Intra frame (not used in Schizm), 0x41 = Last frame
    char areaID[4];
};

struct FrameData2 {
    FrameData2();

    int32 x;
    int32 y;
    int32 angle;
    uint16 frameNumberInArea;
    uint16 unknown; // Subarea or something?
};

struct AnimFrameRange {
    AnimFrameRange();

    uint animationNum;
    uint firstFrame;
    uint lastFrame; // Inclusive
};

struct InventoryItem {
    InventoryItem();

    Common::SharedPtr<Graphics::Surface> graphic;
    uint itemID;
    bool highlighted;
};

struct Fraction {
    Fraction();
    Fraction(uint pNumerator, uint pDenominator);

    uint numerator;
    uint denominator;
};

enum LoadGameOutcome {
    kLoadGameOutcomeSucceeded,

    kLoadGameOutcomeSaveDataCorrupted,

    kLoadGameOutcomeMissingVersion,
    kLoadGameOutcomeInvalidVersion,
    kLoadGameOutcomeSaveIsTooNew,
    kLoadGameOutcomeSaveIsTooOld,
};

// State that is swapped when switching between characters in Schizm
struct SaveGameSwappableState {
    struct InventoryItem {
        InventoryItem();

        uint itemID;
        bool highlighted;

        void write(Common::WriteStream *stream) const;
        void read(Common::ReadStream *stream);
    };

    struct Sound {
        Sound();

        Common::String name;
        uint id;
        int32 volume;
        int32 balance;

        bool is3D;
        bool isLooping;
        bool tryToLoopWhenRestarted;
        bool isSpeech;

        int32 x;
        int32 y;

        SoundParams3D params3D;

        void write(Common::WriteStream *stream) const;
        void read(Common::ReadStream *stream, uint saveGameVersion);
    };

    SaveGameSwappableState();

    uint roomNumber;
    uint screenNumber;
    uint direction;
    uint disc;
    bool havePendingPostSwapScreenReset;

    uint loadedAnimation;
    uint animDisplayingFrame;
    bool haveIdleAnimationLoop;
    uint idleAnimNum;
    uint idleFirstFrame;
    uint idleLastFrame;

    int musicTrack;

    Common::String scoreTrack;
    Common::String scoreSection;
    bool musicActive;
    bool musicMuteDisabled;

    int32 musicVolume;
    int32 animVolume;

    Common::Array<InventoryItem> inventory;
    Common::Array<Sound> sounds;
    Common::Array<RandomAmbientSound> randomAmbientSounds;
};

struct SaveGameSnapshot {
    struct PagedInventoryItem {
        PagedInventoryItem();

        uint8 page;
        uint8 slot;
        uint8 itemID;

        void write(Common::WriteStream *stream) const;
        void read(Common::ReadStream *stream, uint saveGameVersion);
    };

    struct PlacedInventoryItem {
        PlacedInventoryItem();

        uint32 locationID;
        uint8 itemID;

        void write(Common::WriteStream *stream) const;
        void read(Common::ReadStream *stream, uint saveGameVersion);
    };

    SaveGameSnapshot();

    void write(Common::WriteStream *stream) const;
    LoadGameOutcome read(Common::ReadStream *stream);

    static const uint kSaveGameIdentifier = 0x53566372;
    static const uint kSaveGameCurrentVersion = 10;
    static const uint kSaveGameEarliestSupportedVersion = 2;
    static const uint kMaxStates = 2;

    static Common::String safeReadString(Common::ReadStream *stream);
    static void writeString(Common::WriteStream *stream, const Common::String &str);

    uint hero;
    uint swapOutRoom;
    uint swapOutScreen;
    uint swapOutDirection;
    uint8 inventoryPage;
    uint8 inventoryActiveItem;

    uint numStates;
    Common::SharedPtr<SaveGameSwappableState> states[kMaxStates];

    bool escOn;

    StaticAnimParams pendingStaticAnimParams;
    SoundParams3D pendingSoundParams3D;

    int32 listenerX;
    int32 listenerY;
    int32 listenerAngle;

    Common::Array<TriggeredOneShot> triggeredOneShots;
    Common::HashMap<uint32, uint> sayCycles;

    Common::HashMap<uint32, int32> variables;
    Common::HashMap<uint, uint32> timers;
    Common::Array<PagedInventoryItem> pagedItems;
    Common::Array<PlacedInventoryItem> placedItems;
};

enum OSEventType {
    kOSEventTypeInvalid,

    kOSEventTypeMouseMove,
    kOSEventTypeLButtonDown,
    kOSEventTypeLButtonUp,

    kOSEventTypeKeyDown,

    kOSEventTypeKeymappedEvent,
};

enum KeymappedEvent {
    kKeymappedEventNone,

    kKeymappedEventHelp,
    kKeymappedEventSaveGame,
    kKeymappedEventLoadGame,
    kKeymappedEventSoundSettings,
    kKeymappedEventQuit,
    kKeymappedEventPause,
    kKeymappedEventMusicToggle,
    kKeymappedEventSoundToggle,
    kKeymappedEventMusicVolumeDown,
    kKeymappedEventMusicVolumeUp,
    kKeymappedEventSoundVolumeDown,
    kKeymappedEventSoundVolumeUp,

    kKeymappedEventSkipAnimation,

    kKeymappedEventPutItem,
};

struct OSEvent {
    OSEvent();

    OSEventType type;
    Common::Point pos;
    Common::KeyCode keyCode;
    KeymappedEvent keymappedEvent;
    uint32 timestamp;
};

struct TextStyleDef {
    Common::String fontName;
    uint size;
    uint unknown1;
    uint unknown2;
    uint unknown3;  // Seems to always be 0 for English, other values for other languages
    uint colorRGB;
    uint shadowColorRGB;
    uint alignment; // Modulo 10 seems to be alignment: 0 = left, 1 = center, 2 = right
    uint unknown5;  // Possibly drop shadow offset
};

struct UILabelDef {
    Common::String lineID;
    Common::String styleDefID;
    uint graphicLeft;
    uint graphicTop;
    uint graphicWidth;
    uint graphicHeight;
};

struct FontCacheItem {
    FontCacheItem();

    Common::String fname;
    uint size;

    const Graphics::Font *font;
    Common::SharedPtr<Graphics::Font> keepAlive;
};

typedef Common::HashMap<Common::String, uint> ScreenNameToRoomMap_t;
typedef Common::HashMap<uint, ScreenNameToRoomMap_t> RoomToScreenNameToRoomMap_t;

struct AnimatedCursor {
    struct FrameDef {
        uint imageIndex;
        uint delay;
    };

    Common::Array<FrameDef> frames;
    Common::Array<Graphics::Cursor *> images;

    Common::Array<Common::SharedPtr<Graphics::Cursor> > cursorKeepAlive;
    Common::SharedPtr<Graphics::WinCursorGroup> cursorGroupKeepAlive;
};

class Runtime {
public:
    friend class RuntimeMenuInterface;

    enum CharSet {
        kCharSetLatin,
        kCharSetGreek,
        kCharSetCyrillic,
        kCharSetJapanese,
        kCharSetChineseTraditional,
        kCharSetChineseSimplified,
    };

    Runtime(OSystem *system, Audio::Mixer *mixer, MidiDriver *midiDrv, const Common::FSNode &rootFSNode, VCruiseGameID gameID, Common::Language defaultLanguage);
    virtual ~Runtime();

    void initSections(const Common::Rect &gameRect, const Common::Rect &menuRect, const Common::Rect &trayRect, const Common::Rect &subtitleRect, const Common::Rect &fullscreenMenuRect, const Graphics::PixelFormat &pixFmt);

    void loadCursors(const char *exeName);
    void setDebugMode(bool debugMode);
    void setFastAnimationMode(bool fastAnimationMode);
    void setPreloadSounds(bool preloadSounds);
    void setLowQualityGraphicsMode(bool lowQualityGraphicsMode);

    bool runFrame();
    void drawFrame();

    void onLButtonDown(int16 x, int16 y);
    void onLButtonUp(int16 x, int16 y);
    void onMouseMove(int16 x, int16 y);
    void onKeyDown(Common::KeyCode keyCode);
    void onKeymappedEvent(KeymappedEvent evt);

    bool canSave(bool onCurrentScreen) const;
    bool canLoad() const;

    void recordSaveGameSnapshot();
    void recordSounds(SaveGameSwappableState &state);
    void restoreSaveGameSnapshot();
    Common::SharedPtr<SaveGameSnapshot> generateNewGameSnapshot() const;

    void saveGame(Common::WriteStream *stream) const;
    LoadGameOutcome loadGame(Common::ReadStream *stream);

    bool bootGame(bool newGame);
    static void resolveCodePageForLanguage(Common::Language lang, Common::CodePage &outCodePage, CharSet &outCharSet);

    void drawLabel(Graphics::ManagedSurface *surface, const Common::String &labelID, const Common::Rect &contentRect);
    void getLabelDef(const Common::String &labelID, const Graphics::Font *&outFont, const Common::String *&outTextUTF8, uint32 &outColor, uint32 &outShadowColor, uint32 &outShadowOffset);

    void onMidiTimer();

private:
    enum IndexParseType {
        kIndexParseTypeNone,
        kIndexParseTypeRoom,
        kIndexParseTypeRRoom,   // Rectangle room (constrains animation areas)
        kIndexParseTypeYRoom,   // Yes room (variable/ID mappings)
        kIndexParseTypeVRoom,   // Value room (value/ID mappings?)
        kIndexParseTypeTRoom,   // Text
        kIndexParseTypeCRoom,   // Const
        kIndexParseTypeSRoom,   // Sound
        kIndexParseTypeNameRoom,
    };

    enum AnimDecoderState {
        kAnimDecoderStateStopped,
        kAnimDecoderStatePlaying,
        kAnimDecoderStatePaused,
    };

    struct IndexPrefixTypePair {
        const char *prefix;
        IndexParseType parseType;
    };

    struct RenderSection {
        Common::SharedPtr<Graphics::ManagedSurface> surf;
        Common::Rect rect;
        Graphics::PixelFormat pixFmt;

        void init(const Common::Rect &paramRect, const Graphics::PixelFormat &fmt);
    };

    struct Gyro {
        static const uint kMaxPreviousStates = 3;

        int32 currentState;
        int32 requiredState;
        int32 previousStates[kMaxPreviousStates];
        int32 requiredPreviousStates[kMaxPreviousStates];
        uint numPreviousStates;
        uint numPreviousStatesRequired;
        bool wrapAround;
        bool requireState;

        Gyro();

        void reset();
        void logState();
    };

    struct GyroState {
        GyroState();

        void reset();

        static const uint kNumGyros = 5;

        Gyro gyros[kNumGyros];

        uint completeInteraction;
        uint failureInteraction;
        uint frameSeparation;

        uint activeGyro;
        uint dragMargin;
        uint maxValue;

        AnimationDef negAnim;
        AnimationDef posAnim;
        bool isVertical;

        Common::Point dragBasePoint;
        uint dragBaseState;
        int32 dragCurrentState;
        bool isWaitingForAnimation;
    };

    enum PanoramaCursorFlags {
        kPanCursorDraggableHoriz    = (1 << 0),
        kPanCursorDraggableUp       = (1 << 1),
        kPanCursorDraggableDown     = (1 << 2),

        kPanCursorDirectionUp       = (0 << 3),
        kPanCursorDirectionLeft     = (1 << 3),
        kPanCursorDirectionRight    = (2 << 3),
        kPanCursorDirectionDown     = (3 << 3),

        kPanCursorMaxCount          = (1 << 5),
    };

    enum PanoramaState {
        kPanoramaStateInactive,

        kPanoramaStatePanningUncertainDirection,

        kPanoramaStatePanningLeft,
        kPanoramaStatePanningRight,
        kPanoramaStatePanningUp,
        kPanoramaStatePanningDown,
    };

    enum InGameMenuState {
        kInGameMenuStateInvisible,
        kInGameMenuStateVisible,
        kInGameMenuStateHoveringInactive,
        kInGameMenuStateHoveringActive,
        kInGameMenuStateClickingOver,       // Mouse was pressed on a button and is holding on it
        kInGameMenuStateClickingNotOver,    // Mouse was pressed on a button and dragged off
        kInGameMenuStateClickingInactive,
    };

    enum SoundLoopBehavior {
        kSoundLoopBehaviorNo,
        kSoundLoopBehaviorYes,
        kSoundLoopBehaviorAuto,
    };

    static const uint kPanLeftInteraction = 1;
    static const uint kPanDownInteraction = 2;
    static const uint kPanRightInteraction = 3;
    static const uint kPanUpInteraction = 4;

    static const uint kPanoramaLeftFlag = 1;
    static const uint kPanoramaRightFlag = 2;
    static const uint kPanoramaUpFlag = 4;
    static const uint kPanoramaDownFlag = 8;
    static const uint kPanoramaHorizFlags = (kPanoramaLeftFlag | kPanoramaRightFlag);

    static const uint kNumInventorySlots = 6;
    static const uint kNumInventoryPages = 8;

    typedef int32 ScriptArg_t;
    typedef int32 StackInt_t;

    struct StackValue {
        enum StackValueType {
            kNumber,
            kString,
        };

        union ValueUnion {
            StackInt_t i;
            Common::String s;

            ValueUnion();
            explicit ValueUnion(StackInt_t iVal);
            explicit ValueUnion(const Common::String &strVal);
            explicit ValueUnion(Common::String &&strVal);
            ~ValueUnion();
        };

        StackValue();
        StackValue(const StackValue &other);
        StackValue(StackValue &&other);
        explicit StackValue(StackInt_t i);
        explicit StackValue(const Common::String &str);
        explicit StackValue(Common::String &&str);
        ~StackValue();

        StackValue &operator=(const StackValue &other);
        StackValue &operator=(StackValue &&other);

        StackValueType type;
        ValueUnion value;
    };

    struct CallStackFrame {
        CallStackFrame();

        Common::SharedPtr<Script> _script;
        uint _nextInstruction;
    };

    struct SubtitleDef {
        SubtitleDef();

        uint8 color[3];
        uint unknownValue1;
        uint durationInDeciseconds;
        Common::String str;
    };

    struct SubtitleQueueItem {
        Common::U32String str;
        uint8 color[3];
        uint32 startTime;
        uint32 endTime;
    };

    bool runIdle();
    bool runDelay();
    bool runHorizontalPan(bool isRight);
    bool runScript();
    bool requireAvailableStack(uint n);
    bool runWaitForAnimation();
    bool runWaitForAnimationToDelay();
    bool runWaitForFacing();
    bool runWaitForFacingToAnim();
    bool runGyroIdle();
    bool runGyroAnimation();
    void exitGyroIdle();
    void continuePlayingAnimation(bool loop, bool useStopFrame, bool &outEndedAnimation);
    void drawSectionToScreen(const RenderSection &section, const Common::Rect &rect);
    void commitSectionToScreen(const RenderSection &section, const Common::Rect &rect);
    void terminateScript();
    void quitToMenu();
    RoomScriptSet *getRoomScriptSetForCurrentRoom() const;
    bool checkCompletionConditions();

    void startTerminatingHorizontalPan(bool isRight);

    bool popOSEvent(OSEvent &evt);
    void queueOSEvent(const OSEvent &evt);

    void processUniversalKeymappedEvents(KeymappedEvent evt);

    void loadReahSchizmIndex();
    void loadAD2044ExecutableResources();
    void findWaves();
    void loadConfig(const char *cfgPath);
    void loadScore();
    void loadDuplicateRooms();
    void loadAllSchizmScreenNames();
    Common::SharedPtr<SoundInstance> loadWave(const Common::String &soundName, uint soundID, const Common::ArchiveMemberPtr &archiveMemberPtr);
    SoundCache *loadCache(SoundInstance &sound);
    void resolveSoundByName(const Common::String &soundName, bool load, StackInt_t &outSoundID, SoundInstance *&outWave);
    SoundInstance *resolveSoundByID(uint soundID);
    void resolveSoundByNameOrID(const StackValue &stackValue, bool load, StackInt_t &outSoundID, SoundInstance *&outWave);

    void changeToScreen(uint roomNumber, uint screenNumber);
    void clearIdleAnimations();
    void changeHero();
    void changeToExamineItem();
    void returnFromExaminingItem();
    bool triggerPreIdleActions();
    void returnToIdleState();
    void changeToCursor(const Common::SharedPtr<AnimatedCursor> &cursor);
    void refreshCursor(uint32 currentTime);
    bool dischargeIdleMouseMove();
    bool dischargeIdleMouseDown();
    bool dischargeIdleClick();
    void loadFrameData(Common::SeekableReadStream *stream);
    void loadFrameData2(Common::SeekableReadStream *stream);
    void loadTabData(Common::HashMap<int, AnimFrameRange> &animIDToFrameRangeMap, uint animNumber, Common::SeekableReadStream *stream);

    void changeMusicTrack(int musicID);
    void startScoreSection();
    void setMusicMute(bool muted);

    void changeAnimation(const AnimationDef &animDef, bool consumeFPSOverride);
    void changeAnimation(const AnimationDef &animDef, uint initialFrame, bool consumeFPSOverride);
    void changeAnimation(const AnimationDef &animDef, uint initialFrame, bool consumeFPSOverride, const Fraction &defaultFrameRate);
    void applyAnimationVolume();

    void setSound3DParameters(SoundInstance &sound, int32 x, int32 y, const SoundParams3D &soundParams3D);
    void triggerSound(SoundLoopBehavior loopBehavior, SoundInstance &sound, int32 volume, int32 balance, bool is3D, bool isSpeech);
    void triggerSoundRamp(SoundInstance &sound, uint durationMSec, int32 newVolume, bool terminateOnCompletion);
    void stopSound(SoundInstance &sound);
    void convertLoopingSoundToNonLooping(SoundInstance &sound);
    void updateSounds(uint32 timestamp);
    void updateSubtitles();
    void update3DSounds();
    bool computeEffectiveVolumeAndBalance(SoundInstance &snd);
    void triggerAmbientSounds();
    uint decibelsToLinear(int db, uint baseVolume, uint maxVolume) const;
    int32 getSilentSoundVolume() const;
    int32 getDefaultSoundVolume() const;
    uint applyVolumeScale(int32 volume) const;
    int applyBalanceScale(int32 balance) const;

    void triggerWaveSubtitles(const SoundInstance &sound, const Common::String &id);
    void stopSubtitles();

    AnimationDef stackArgsToAnimDef(const StackInt_t *args) const;
    void consumeAnimChangeAndAdjustAnim(AnimationDef &animDef);
    void pushAnimDef(const AnimationDef &animDef);

    void activateScript(const Common::SharedPtr<Script> &script, bool isEntryScript, const ScriptEnvironmentVars &envVars);
    Common::SharedPtr<ScriptSet> compileSchizmLogicSet(const uint *roomNumbers, uint numRooms) const;

    bool parseIndexDef(IndexParseType parseType, uint roomNumber, const Common::String &key, const Common::String &value);
    void allocateRoomsUpTo(uint roomNumber);

    void drawDebugOverlay();

    Common::SharedPtr<Script> findScriptForInteraction(uint interactionID) const;

    void detectPanoramaDirections();
    void detectPanoramaMouseMovement(uint32 timestamp);
    void panoramaActivate();

    bool computeFaceDirectionAnimation(uint desiredDirection, const AnimationDef *&outAnimDef, uint &outInitialFrame, uint &outStopFrame);

    void inventoryAddItem(uint item);
    void inventoryRemoveItem(uint item);
    void clearScreen();
    void redrawTray();
    void clearTray();
    void redrawSubtitleSection();
    void clearSubtitleSection();
    void drawSubtitleText(const Common::Array<Common::U32String> &lines, const uint8 (&color)[3]);
    void drawInventory(uint slot);
    void drawCompass();
    bool isTrayVisible() const;
    void resetInventoryHighlights();
    void loadInventoryFromPage();
    void copyInventoryToPage();
    void cheatPutItem();
    static uint32 getLocationForScreen(uint roomNumber, uint screenNumber);
    void updatePlacedItemCache();
    void drawPlacedItemGraphic();
    void clearPlacedItemGraphic();
    void drawActiveItemGraphic();
    void clearActiveItemGraphic();
    void drawInventoryItemGraphic(uint slot);
    void clearInventoryItemGraphic(uint slot);
    void dropActiveItem();
    void pickupPlacedItem();
    void stashActiveItemToInventory(uint slot);
    void pickupInventoryItem(uint slot);

    void getFileNamesForItemGraphic(uint itemID, Common::String &outGraphicFileName, Common::String &outAlphaFileName) const;
    Common::SharedPtr<Graphics::Surface> loadGraphic(const Common::String &graphicName, const Common::String &alphaName, bool required);
    Common::SharedPtr<Graphics::Surface> loadGraphicFromPath(const Common::Path &path, bool required);

    bool loadSubtitles(Common::CodePage codePage, bool guessCodePage);

    void changeToMenuPage(MenuPage *menuPage);

    void checkInGameMenuHover();
    void dismissInGameMenu();
    void dischargeInGameMenuMouseUp();
    void drawInGameMenuButton(uint element);

    const Graphics::Font *resolveFont(const Common::String &textStyle, uint size);

    bool resolveCircuitPuzzleInteraction(const Common::Point &relMouse, Common::Point &outCoord, bool &outIsDown, Common::Rect &outHighlightRect) const;
    void clearCircuitPuzzle();
    void clearCircuitHighlightRect(const Common::Rect &rect);
    void drawCircuitHighlightRect(const Common::Rect &rect);
    static Common::Rect padCircuitInteractionRect(const Common::Rect &rect);

    static Common::SharedPtr<AnimatedCursor> winCursorGroupToAnimatedCursor(const Common::SharedPtr<Graphics::WinCursorGroup> &cursorGroup);
    static Common::SharedPtr<AnimatedCursor> aniFileToAnimatedCursor(Image::AniDecoder &aniDecoder);
    static Common::SharedPtr<AnimatedCursor> staticCursorToAnimatedCursor(const Common::SharedPtr<Graphics::Cursor> &cursor);

    // Script things
    void scriptOpNumber(ScriptArg_t arg);
    void scriptOpRotate(ScriptArg_t arg);
    void scriptOpAngle(ScriptArg_t arg);
    void scriptOpAngleGGet(ScriptArg_t arg);
    void scriptOpSpeed(ScriptArg_t arg);
    void scriptOpSAnimL(ScriptArg_t arg);
    void scriptOpChangeL(ScriptArg_t arg);

    void scriptOpAnimR(ScriptArg_t arg);
    void scriptOpAnimF(ScriptArg_t arg);
    void scriptOpAnimN(ScriptArg_t arg);
    void scriptOpAnimG(ScriptArg_t arg);
    void scriptOpAnimS(ScriptArg_t arg);
    void scriptOpAnim(ScriptArg_t arg);

    void scriptOpStatic(ScriptArg_t arg);
    void scriptOpVarLoad(ScriptArg_t arg);
    void scriptOpVarStore(ScriptArg_t arg);
    void scriptOpVarAddAndStore(ScriptArg_t arg);
    void scriptOpVarGlobalLoad(ScriptArg_t arg);
    void scriptOpVarGlobalStore(ScriptArg_t arg);

    void scriptOpItemCheck(ScriptArg_t arg);
    void scriptOpItemRemove(ScriptArg_t arg);
    void scriptOpItemHighlightSet(ScriptArg_t arg);
    void scriptOpItemAdd(ScriptArg_t arg);
    void scriptOpItemHaveSpace(ScriptArg_t arg);
    void scriptOpItemClear(ScriptArg_t arg);

    void scriptOpSetCursor(ScriptArg_t arg);
    void scriptOpSetRoom(ScriptArg_t arg);
    void scriptOpLMB(ScriptArg_t arg);
    void scriptOpLMB1(ScriptArg_t arg);
    void scriptOpSoundS1(ScriptArg_t arg);
    void scriptOpSoundS2(ScriptArg_t arg);
    void scriptOpSoundS3(ScriptArg_t arg);
    void scriptOpSoundL1(ScriptArg_t arg);
    void scriptOpSoundL2(ScriptArg_t arg);
    void scriptOpSoundL3(ScriptArg_t arg);
    void scriptOp3DSoundS2(ScriptArg_t arg);
    void scriptOp3DSoundL2(ScriptArg_t arg);
    void scriptOp3DSoundL3(ScriptArg_t arg);
    void scriptOpStopAL(ScriptArg_t arg);
    void scriptOpRange(ScriptArg_t arg);
    void scriptOpAddXSound(ScriptArg_t arg);
    void scriptOpClrXSound(ScriptArg_t arg);
    void scriptOpStopSndLA(ScriptArg_t arg);
    void scriptOpStopSndLO(ScriptArg_t arg);

    void scriptOpMusic(ScriptArg_t arg);
    void scriptOpMusicVolRamp(ScriptArg_t arg);
    void scriptOpParm0(ScriptArg_t arg);
    void scriptOpParm1(ScriptArg_t arg);
    void scriptOpParm2(ScriptArg_t arg);
    void scriptOpParm3(ScriptArg_t arg);
    void scriptOpParmG(ScriptArg_t arg);
    void scriptOpSParmX(ScriptArg_t arg);
    void scriptOpSAnimX(ScriptArg_t arg);

    void scriptOpVolumeDn2(ScriptArg_t arg);
    void scriptOpVolumeDn3(ScriptArg_t arg);
    void scriptOpVolumeDn4(ScriptArg_t arg);
    void scriptOpVolumeUp3(ScriptArg_t arg);
    void scriptOpRandom(ScriptArg_t arg);
    void scriptOpDrop(ScriptArg_t arg);
    void scriptOpDup(ScriptArg_t arg);
    void scriptOpSwap(ScriptArg_t arg);
    void scriptOpSay1(ScriptArg_t arg);
    void scriptOpSay2(ScriptArg_t arg);
    void scriptOpSay3(ScriptArg_t arg);
    void scriptOpSay3Get(ScriptArg_t arg);
    void scriptOpSetTimer(ScriptArg_t arg);
    void scriptOpGetTimer(ScriptArg_t arg);
    void scriptOpDelay(ScriptArg_t arg);
    void scriptOpLoSet(ScriptArg_t arg);
    void scriptOpLoGet(ScriptArg_t arg);
    void scriptOpHiSet(ScriptArg_t arg);
    void scriptOpHiGet(ScriptArg_t arg);

    void scriptOpNot(ScriptArg_t arg);
    void scriptOpAnd(ScriptArg_t arg);
    void scriptOpOr(ScriptArg_t arg);
    void scriptOpAdd(ScriptArg_t arg);
    void scriptOpSub(ScriptArg_t arg);
    void scriptOpNegate(ScriptArg_t arg);
    void scriptOpCmpEq(ScriptArg_t arg);
    void scriptOpCmpLt(ScriptArg_t arg);
    void scriptOpCmpGt(ScriptArg_t arg);

    void scriptOpBitLoad(ScriptArg_t arg);
    void scriptOpBitSet0(ScriptArg_t arg);
    void scriptOpBitSet1(ScriptArg_t arg);

    void scriptOpDisc1(ScriptArg_t arg);
    void scriptOpDisc2(ScriptArg_t arg);
    void scriptOpDisc3(ScriptArg_t arg);

    void scriptOpGoto(ScriptArg_t arg);

    void scriptOpEscOn(ScriptArg_t arg);
    void scriptOpEscOff(ScriptArg_t arg);
    void scriptOpEscGet(ScriptArg_t arg);
    void scriptOpBackStart(ScriptArg_t arg);
    void scriptOpSaveAs(ScriptArg_t arg);
    void scriptOpSave0(ScriptArg_t arg);
    void scriptOpExit(ScriptArg_t arg);
    void scriptOpAllowSaves(ScriptArg_t arg);

    void scriptOpAnimName(ScriptArg_t arg);
    void scriptOpValueName(ScriptArg_t arg);
    void scriptOpVarName(ScriptArg_t arg);
    void scriptOpSoundName(ScriptArg_t arg);
    void scriptOpCursorName(ScriptArg_t arg);
    void scriptOpDubbing(ScriptArg_t arg);

    void scriptOpCheckValue(ScriptArg_t arg);
    void scriptOpJump(ScriptArg_t arg);

    void scriptOpVerticalPanSet(bool *flags);
    void scriptOpVerticalPanGet();

    // Schizm ops
    void scriptOpCallFunction(ScriptArg_t arg);

    void scriptOpMusicStop(ScriptArg_t arg);
    void scriptOpMusicPlayScore(ScriptArg_t arg);
    void scriptOpScoreAlways(ScriptArg_t arg);
    void scriptOpScoreNormal(ScriptArg_t arg);
    void scriptOpSndPlay(ScriptArg_t arg);
    void scriptOpSndPlayEx(ScriptArg_t arg);
    void scriptOpSndPlay3D(ScriptArg_t arg);
    void scriptOpSndPlaying(ScriptArg_t arg);
    void scriptOpSndWait(ScriptArg_t arg);
    void scriptOpSndHalt(ScriptArg_t arg);
    void scriptOpSndToBack(ScriptArg_t arg);
    void scriptOpSndStop(ScriptArg_t arg);
    void scriptOpSndStopAll(ScriptArg_t arg);
    void scriptOpSndAddRandom(ScriptArg_t arg);
    void scriptOpSndClearRandom(ScriptArg_t arg);
    void scriptOpVolumeAdd(ScriptArg_t arg);
    void scriptOpVolumeChange(ScriptArg_t arg);
    void scriptOpAnimVolume(ScriptArg_t arg);
    void scriptOpAnimChange(ScriptArg_t arg);
    void scriptOpScreenName(ScriptArg_t arg);
    void scriptOpExtractByte(ScriptArg_t arg);
    void scriptOpInsertByte(ScriptArg_t arg);
    void scriptOpString(ScriptArg_t arg);
    void scriptOpCmpNE(ScriptArg_t arg);
    void scriptOpCmpLE(ScriptArg_t arg);
    void scriptOpCmpGE(ScriptArg_t arg);
    void scriptOpReturn(ScriptArg_t arg);
    void scriptOpSpeech(ScriptArg_t arg);
    void scriptOpSpeechEx(ScriptArg_t arg);
    void scriptOpSpeechTest(ScriptArg_t arg);
    void scriptOpSay(ScriptArg_t arg);
    void scriptOpRandomInclusive(ScriptArg_t arg);
    void scriptOpHeroOut(ScriptArg_t arg);
    void scriptOpHeroGetPos(ScriptArg_t arg);
    void scriptOpHeroSetPos(ScriptArg_t arg);
    void scriptOpHeroGet(ScriptArg_t arg);
    void scriptOpGarbage(ScriptArg_t arg);
    void scriptOpGetRoom(ScriptArg_t arg);
    void scriptOpBitAnd(ScriptArg_t arg);
    void scriptOpBitOr(ScriptArg_t arg);
    void scriptOpAngleGet(ScriptArg_t arg);
    void scriptOpIsDVDVersion(ScriptArg_t arg);
    void scriptOpIsCDVersion(ScriptArg_t arg);
    void scriptOpDisc(ScriptArg_t arg);
    void scriptOpHidePanel(ScriptArg_t arg);
    void scriptOpRotateUpdate(ScriptArg_t arg);
    void scriptOpMul(ScriptArg_t arg);
    void scriptOpDiv(ScriptArg_t arg);
    void scriptOpMod(ScriptArg_t arg);
    void scriptOpGetDigit(ScriptArg_t arg);
    void scriptOpPuzzleInit(ScriptArg_t arg);
    void scriptOpPuzzleCanPress(ScriptArg_t arg);
    void scriptOpPuzzleDoMove1(ScriptArg_t arg);
    void scriptOpPuzzleDoMove2(ScriptArg_t arg);
    void scriptOpPuzzleDone(ScriptArg_t arg);
    void scriptOpPuzzleWhoWon(ScriptArg_t arg);
    void scriptOpFn(ScriptArg_t arg);
    void scriptOpItemHighlightSetTrue(ScriptArg_t arg);

    // AD2044 ops
    void scriptOpAnimAD2044(bool isForward);
    void scriptOpAnimT(ScriptArg_t arg);
    void scriptOpAnimForward(ScriptArg_t arg);
    void scriptOpAnimReverse(ScriptArg_t arg);
    void scriptOpAnimKForward(ScriptArg_t arg);
    void scriptOpNoUpdate(ScriptArg_t arg);
    void scriptOpNoClear(ScriptArg_t arg);
    void scriptOpSay1_AD2044(ScriptArg_t arg);
    void scriptOpSay2_AD2044(ScriptArg_t arg);
    void scriptOpSay1Rnd(ScriptArg_t arg);
    void scriptOpM(ScriptArg_t arg);
    void scriptOpEM(ScriptArg_t arg);
    void scriptOpSE(ScriptArg_t arg);
    void scriptOpSDot(ScriptArg_t arg);
    void scriptOpE(ScriptArg_t arg);
    void scriptOpDot(ScriptArg_t arg);
    void scriptOpSound(ScriptArg_t arg);
    void scriptOpISound(ScriptArg_t arg);
    void scriptOpUSound(ScriptArg_t arg);
    void scriptOpSayCycle_AD2044(const StackInt_t *values, uint numValues);
    void scriptOpSay2K(ScriptArg_t arg);
    void scriptOpSay3K(ScriptArg_t arg);
    void scriptOpRGet(ScriptArg_t arg);
    void scriptOpRSet(ScriptArg_t arg);
    void scriptOpEndRSet(ScriptArg_t arg);
    void scriptOpStop(ScriptArg_t arg);

    Common::Array<Common::SharedPtr<AnimatedCursor> > _cursors;      // Cursors indexed as CURSOR_CUR_##
    Common::Array<Common::SharedPtr<AnimatedCursor> > _cursorsShort;      // Cursors indexed as CURSOR_#

    InventoryItem _inventory[kNumInventorySlots];
    InventoryItem _inventoryPages[kNumInventoryPages][kNumInventorySlots];
    Common::HashMap<uint32, uint8> _placedItems;
    uint8 _inventoryActivePage;
    InventoryItem _inventoryActiveItem;
    InventoryItem _inventoryPlacedItemCache;
    Common::Rect _placedItemRect;

    Common::SharedPtr<Graphics::Surface> _trayCompassGraphic;
    Common::SharedPtr<Graphics::Surface> _trayBackgroundGraphic;
    Common::SharedPtr<Graphics::Surface> _trayHighlightGraphic;
    Common::SharedPtr<Graphics::Surface> _trayCornerGraphic;
    Common::SharedPtr<Graphics::Surface> _backgroundGraphic;

    Common::Array<Common::SharedPtr<Graphics::Surface> > _uiGraphics;

    uint _panCursors[kPanCursorMaxCount];

    Common::HashMap<Common::String, StackInt_t> _namedCursors;
    Common::HashMap<StackInt_t, uint> _scriptCursorIDToResourceIDOverride;

    OSystem *_system;
    uint _roomNumber;   // Room number can be changed independently of the loaded room, the screen doesn't change until a command changes it
    uint _screenNumber;
    uint _direction;
    uint _hero;
    uint _disc;

    uint _swapOutRoom;
    uint _swapOutScreen;
    uint _swapOutDirection;

    GyroState _gyros;

    AnimationDef _panLeftAnimationDef;
    AnimationDef _panRightAnimationDef;
    bool _haveHorizPanAnimations;
    bool _havePanUpFromDirection[kNumDirections];
    bool _havePanDownFromDirection[kNumDirections];

    StaticAnimation _idleAnimations[kNumDirections];
    bool _haveIdleAnimations[kNumDirections];
    bool _haveIdleStaticAnimation;
    bool _keepStaticAnimationInIdle;
    Common::String _idleCurrentStaticAnimation;
    StaticAnimParams _pendingStaticAnimParams;

    uint32 _delayCompletionTime;

    AnimationDef _postFacingAnimDef;

    Common::SharedPtr<CircuitPuzzle> _circuitPuzzle;
    AnimationDef _circuitPuzzleBlockAnimation;
    AnimationDef _circuitPuzzleConnectAnimation;

    Common::HashMap<uint32, int32> _variables;
    Common::HashMap<uint, uint32> _timers;

    uint _panoramaDirectionFlags;

    uint _loadedRoomNumber;
    uint _activeScreenNumber;
    bool _havePendingScreenChange;
    bool _forceScreenChange;

    // returnToIdleState executes any actions that must be executed upon returning to idle state from either
    // a panorama or the first script that executes upon reaching a screen.
    //
    // Unfortunately, this was done slightly prematurely since Schizm plays idle animations during pre-idle
    // delays and Reah never needs to do that, so _havePendingPreIdleActions exists to handle those actions
    // during pre-idle upon arriving at a screen.
    //
    // Pre-idle actions are executed once upon either entering Idle OR Delay state.
    bool _havePendingPreIdleActions;
    bool _havePendingReturnToIdleState;
    bool _havePendingPostSwapScreenReset;

    bool _havePendingCompletionCheck;
    GameState _gameState;

    Common::SharedPtr<MenuPage> _menuPage;
    Common::SharedPtr<MenuInterface> _menuInterface;

    bool _havePendingPlayAmbientSounds;
    uint32 _ambientSoundFinishTime;

    bool _escOn;
    bool _debugMode;
    bool _fastAnimationMode;
    bool _preloadSounds;
    bool _lowQualityGraphicsMode;

    VCruiseGameID _gameID;

    Common::Array<Common::SharedPtr<RoomDef> > _roomDefs;
    Common::Array<uint> _roomDuplicationOffsets;
    RoomToScreenNameToRoomMap_t _globalRoomScreenNameToScreenIDs;
    Common::SharedPtr<ScriptSet> _scriptSet;
    Common::Array<AD2044AnimationDef> _ad2044AnimationDefs;

    Common::Array<CallStackFrame> _scriptCallStack;

    Common::Array<StackValue> _scriptStack;
    ScriptEnvironmentVars _scriptEnv;

    Common::SharedPtr<Common::RandomSource> _rng;

    Common::SharedPtr<AudioPlayer> _musicWavePlayer;
    Common::Mutex _midiPlayerMutex;
    Common::SharedPtr<MidiPlayer> _musicMidiPlayer;
    int _musicTrack;
    int32 _musicVolume;
    bool _musicActive;
    bool _musicMute;
    bool _musicMuteDisabled;

    Common::String _scoreTrack;
    Common::String _scoreSection;
    uint32 _scoreSectionEndTime;
    Common::HashMap<Common::String, ScoreTrackDef> _scoreDefs;

    uint32 _musicVolumeRampStartTime;
    int32 _musicVolumeRampStartVolume;
    int32 _musicVolumeRampRatePerMSec;
    int32 _musicVolumeRampEnd;

    SfxData _sfxData;

    Common::SharedPtr<Video::AVIDecoder> _animDecoder;
    Common::SharedPtr<SfxPlaylist> _animPlaylist;
    AnimDecoderState _animDecoderState;
    bool _animTerminateAtStartOfFrame;
    uint _animPendingDecodeFrame;
    uint _animDisplayingFrame;
    uint _animFirstFrame;
    uint _animLastFrame;
    uint _animStopFrame;
    uint _animVolume;
    Fraction _animFrameRateLock;
    Common::Rect _animConstraintRect;
    uint32 _animStartTime;
    uint32 _animFramesDecoded;
    uint _loadedAnimation;
    bool _loadedAnimationHasSound;
    bool _animPlayWhileIdle;

    Common::Array<FrameData> _frameData;
    Common::Array<FrameData2> _frameData2;
    //uint32 _loadedArea;

    // Reah/Schizm animation map
    Common::Array<Common::String> _animDefNames;
    Common::HashMap<Common::String, uint> _animDefNameToIndex;

    // AD2044 animation map
    Common::HashMap<int, AnimFrameRange> _currentRoomAnimIDToFrameRange;
    Common::HashMap<int, AnimFrameRange> _examineAnimIDToFrameRange;

    bool _idleLockInteractions;
    bool _idleIsOnInteraction;
    bool _idleHaveClickInteraction;
    bool _idleHaveDragInteraction;
    uint _idleInteractionID;

    bool _idleIsOnOpenCircuitPuzzleLink;
    Common::Rect _idleCircuitPuzzleLinkHighlightRect;

    bool _idleIsCircuitPuzzleLinkDown;
    Common::Point _idleCircuitPuzzleCoord;

    bool _forceAllowSaves;

    InGameMenuState _inGameMenuState;
    uint _inGameMenuActiveElement;
    bool _inGameMenuButtonActive[5];

    Audio::Mixer *_mixer;
    MidiDriver *_midiDrv;

    Common::SharedPtr<MapLoader> _mapLoader;

    RenderSection _gameSection;
    RenderSection _gameDebugBackBuffer;
    RenderSection _menuSection;
    RenderSection _traySection;
    RenderSection _fullscreenMenuSection;
    RenderSection _subtitleSection;
    RenderSection _placedItemBackBufferSection;

    Common::Point _mousePos;
    Common::Point _lmbDownPos;
    uint32 _lmbDownTime;
    int _lmbDragTolerance;
    bool _lmbDown;
    bool _lmbDragging;
    bool _lmbReleaseWasClick;   // If true, then the mouse didn't move at all since the LMB down

    PanoramaState _panoramaState;
    // The anchor point behavior is kind of weird.  The way it works in Reah is that if the camera is panning left or right and the mouse is moved
    // back across the anchor threshold at all, then the anchor point is reset to the mouse position.  This means it can drift, because the center
    // is moved by roughly the margin amount.
    // Vertical panning on the other hand resets the anchor vertical coordinate every time.
    Common::Point _panoramaAnchor;

    Common::Array<OSEvent> _pendingEvents;

    Common::HashMap<Common::String, Common::ArchiveMemberPtr> _waves;
    Common::Array<Common::SharedPtr<SoundInstance> > _activeSounds;
    SoundParams3D _pendingSoundParams3D;

    Common::Array<TriggeredOneShot> _triggeredOneShots;
    Common::HashMap<uint32, uint> _sayCycles;
    Common::Array<RandomAmbientSound> _randomAmbientSounds;

    int32 _listenerX;
    int32 _listenerY;
    int32 _listenerAngle;

    Fraction _animSpeedRotation;
    Fraction _animSpeedStaticAnim;
    Fraction _animSpeedDefault;

    static const uint kAnimDefStackArgs = 8;

    static const uint kCursorArrow = 0;
    static const uint kCursorWait = 29;

    static const int kPanoramaPanningMarginX = 11;
    static const int kPanoramaPanningMarginY = 11;

    static const uint kSoundCacheSize = 16;

    static const uint kExamineItemInteractionID = 0xfffffff0u;

    static const uint kReturnInventorySlot0InteractionID = 0xfffffff1u;
    static const uint kReturnInventorySlot1InteractionID = 0xfffffff2u;
    static const uint kReturnInventorySlot2InteractionID = 0xfffffff3u;
    static const uint kReturnInventorySlot3InteractionID = 0xfffffff4u;
    static const uint kReturnInventorySlot4InteractionID = 0xfffffff5u;
    static const uint kReturnInventorySlot5InteractionID = 0xfffffff6u;

    static const uint kPickupInventorySlot0InteractionID = 0xfffffff7u;
    static const uint kPickupInventorySlot1InteractionID = 0xfffffff8u;
    static const uint kPickupInventorySlot2InteractionID = 0xfffffff9u;
    static const uint kPickupInventorySlot3InteractionID = 0xfffffffau;
    static const uint kPickupInventorySlot4InteractionID = 0xfffffffbu;
    static const uint kPickupInventorySlot5InteractionID = 0xfffffffcu;

    static const uint kObjectPickupInteractionID = 0xfffffffdu;
    static const uint kObjectDropInteractionID = 0xfffffffeu;

    static const uint kHeroChangeInteractionID = 0xffffffffu;

    Common::Pair<Common::String, Common::SharedPtr<SoundCache> > _soundCache[kSoundCacheSize];
    uint _soundCacheIndex;

    Common::SharedPtr<SaveGameSnapshot> _mostRecentValidSaveState;          // Always valid
    Common::SharedPtr<SaveGameSnapshot> _mostRecentlyRecordedSaveState;     // Might be invalid, becomes valid if the player returns to idle
    Common::SharedPtr<SaveGameSwappableState> _altState;
    bool _isInGame;

    const Graphics::Font *_subtitleFont;
    Common::SharedPtr<Graphics::Font> _subtitleFontKeepalive;
    uint _defaultLanguageIndex;
    uint _languageIndex;
    Common::Language _language;
    CharSet _charSet;
    bool _isCDVariant;
    StartConfigDef _startConfigs[kNumStartConfigs];

    Common::Language _defaultLanguage;

    typedef Common::HashMap<uint, SubtitleDef> FrameToSubtitleMap_t;
    typedef Common::HashMap<uint, FrameToSubtitleMap_t> AnimSubtitleMap_t;
    typedef Common::HashMap<Common::String, SubtitleDef> WaveSubtitleMap_t;

    AnimSubtitleMap_t _animSubtitles;
    Common::HashMap<Common::String, SubtitleDef> _waveSubtitles;
    Common::Array<SubtitleQueueItem> _subtitleQueue;
    bool _isDisplayingSubtitles;
    bool _isSubtitleSourceAnimation;

    Common::HashMap<Common::String, Common::String> _locStrings;
    Common::HashMap<Common::String, TextStyleDef> _locTextStyles;
    Common::HashMap<Common::String, UILabelDef> _locUILabels;

    Common::Array<Common::SharedPtr<FontCacheItem> > _fontCache;

    AnimatedCursor *_currentAnimatedCursor;
    Graphics::Cursor *_currentCursor;
    uint32 _cursorTimeBase;
    uint32 _cursorCycleLength;

    int32 _dbToVolume[49];

    // AD2044 tooltips
    Common::String _tooltipText;
    Common::String _subtitleText;

    Common::SharedPtr<AD2044Graphics> _ad2044Graphics;
    Common::Array<Common::String> _ad2044ItemNames;
};

} // End of namespace VCruise

#endif