teenagent.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 TEENAGENT_TEENAGENT_H
#define TEENAGENT_TEENAGENT_H

#include "engines/engine.h"

#include "audio/mixer.h"

#include "common/random.h"
#include "common/array.h"

#include "gui/debugger.h"

#include "teenagent/console.h"
#include "teenagent/dialog.h"

struct ADGameDescription;

namespace Audio {
class AudioStream;
}

namespace Common {
struct Point;
}

namespace TeenAgent {

struct Object;
struct UseHotspot;
class Scene;
class MusicPlayer;
class Resources;
class Inventory;
class Pack;

// Engine Debug Flags
enum {
    kDebugActor     = (1 << 0),
    kDebugAnimation = (1 << 1),
    kDebugCallbacks = (1 << 2),
    kDebugDialog    = (1 << 3),
    kDebugFont      = (1 << 4),
    kDebugInventory = (1 << 5),
    kDebugMusic     = (1 << 6),
    kDebugObject    = (1 << 7),
    kDebugPack      = (1 << 8),
    kDebugScene     = (1 << 9),
    kDebugSurface   = (1 << 10)
};

const uint16 kScreenWidth = 320;
const uint16 kScreenHeight = 200;

class TeenAgentEngine : public Engine {
public:
    TeenAgentEngine(OSystem *system, const ADGameDescription *gd);
    ~TeenAgentEngine();

    Common::Error run() override;
    Common::String getSaveStateName(int slot) const override;
    Common::Error loadGameState(int slot) override;
    Common::Error saveGameState(int slot, const Common::String &desc, bool isAutosave = false) override;
    bool canLoadGameStateCurrently(Common::U32String *msg = nullptr) override { return true; }
    bool canSaveGameStateCurrently(Common::U32String *msg = nullptr) override { return !_sceneBusy; }
    bool hasFeature(EngineFeature f) const override;

    void init();

    enum Action { kActionNone, kActionExamine, kActionUse };

    void examine(const Common::Point &point, Object *object);
    void use(Object *object);
    inline void cancel() { _action = kActionNone; }

    bool processCallback(uint16 addr);
    inline Scene *getScene() { return scene; }

    bool showLogo();
    bool showCDLogo();
    bool showMetropolis();
    int skipEvents() const;

    Common::String parseMessage(uint16 addr);

    //event driven:
    void displayMessage(uint16 addr, byte color = textColorMark, uint16 x = 0, uint16 y = 0);
    void displayMessage(const Common::String &str, byte color = textColorMark, uint16 x = 0, uint16 y = 0);
    void displayAsyncMessage(uint16 addr, uint16 x, uint16 y, uint16 firstFrame, uint16 lastFrame, byte color = textColorMark);
    void displayAsyncMessageInSlot(uint16 addr, byte slot, uint16 firstFrame, uint16 lastFrame, byte color = textColorMark);
    void displayCredits(uint16 addr, uint16 timer = 0);
    void displayCutsceneMessage(uint16 addr, uint16 x, uint16 y);
    void moveTo(const Common::Point &dst, byte o, bool warp = false);
    void moveTo(uint16 x, uint16 y, byte o, bool warp = false);
    void moveTo(Object *obj);
    void moveRel(int16 x, int16 y, byte o, bool warp = false);
    void playActorAnimation(uint16 id, bool async = false, bool ignore = false);
    void playAnimation(uint16 id, byte slot, bool async = false, bool ignore = false, bool loop = false);
    void loadScene(byte id, const Common::Point &pos, byte o = 0);
    void loadScene(byte id, uint16 x, uint16 y, byte o = 0);
    void enableOn(bool enable = true);
    void setOns(byte id, byte value, byte sceneId = 0);
    void setLan(byte id, byte value, byte sceneId = 0);
    void setFlag(uint16 addr, byte value);
    byte getFlag(uint16 addr);
    void reloadLan();
    void rejectMessage();

    void playMusic(byte id); //schedules play
    void playSound(byte id, byte skipFrames);
    void playSoundNow(Pack *pack, byte id);
    void enableObject(byte id, byte sceneId = 0);
    void disableObject(byte id, byte sceneId = 0);
    void hideActor();
    void showActor();
    void waitAnimation();
    void waitLanAnimationFrame(byte slot, uint16 frame);
    void setTimerCallback(uint16 addr, uint16 frames);
    void shakeScreen();
    void displayCredits();
    void fadeIn();
    void fadeOut();
    void wait(uint16 frames);

    Common::RandomSource _rnd;

    Resources *res;
    Scene *scene;
    Inventory *inventory;
    MusicPlayer *music;
    Dialog *dialog;

    void setMusic(byte id);

private:
    void processObject();
    bool trySelectedObject();

    bool _sceneBusy;
    Action _action;
    Object *_dstObject;

    Audio::AudioStream *_musicStream;
    Audio::SoundHandle _musicHandle, _soundHandle;
    const ADGameDescription *_gameDescription;

    uint _markDelay, _gameDelay;

    Common::Array<Common::Array<UseHotspot> > _useHotspots;

    void fnIntro();
    void fnPoleClimbFail();
    void fnGotAnchor();
    void fnGetOutOfLake();
    void fnGuardDrinking();
    void fnEgoDefaultPosition();
    void fnEnterCave();
    void fnEgoScaredBySpider();
    void fnMoveToLadderAndLeaveCellar();
    void fnLeaveCellar();
    void fnPutRockInHole();
    void fnEgoBottomRightTurn();
    bool fnCheckingDrawers();
    void fnDrawerOpenMessage();
    bool fnRobotSafeAlreadyUnlockedCheck();
    void fnRobotSafeUnlockCheck();
    bool fnMansionIntrusionAttempt();
    void fnSecondMansionIntrusion();
    void fnThirdMansionIntrusion();
    void fnFourthMansionIntrusion();
    void fnFifthMansionIntrusion();
    void fnSixthMansionIntrusion();
    void fnTooDark();
    bool fnIsCookGone();
    void fnEgoSuspiciousPosition();
    void fnGivingFlowerToOldLady();
    void fnGiveAnotherFlowerToOldLady();
    void fnGivingFlowerToAnne();
    void fnGiveAnotherFlowerToAnne();
};

} // End of namespace TeenAgent

#endif