kyra_v2.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 KYRA_KYRA_V2_H
#define KYRA_KYRA_V2_H

#include "kyra/kyra_v1.h"
#include "kyra/gui/gui_v1.h"
#include "kyra/graphics/wsamovie.h"
#include "kyra/engine/item.h"

#include "common/list.h"
#include "common/hashmap.h"

namespace Kyra {

struct FrameControl {
    uint16 index;
    uint16 delay;
};

struct ItemAnimDefinition {
    Item itemIndex;
    uint8 numFrames;
    const FrameControl *frames;
};

struct ActiveItemAnim {
    uint16 currentFrame;
    uint32 nextFrameTime;
};

class Screen_v2;

class KyraEngine_v2 : public KyraEngine_v1 {
friend class Debugger_v2;
friend class GUI_v2;
public:
    struct EngineDesc {
        // Generic shape related
        int itemShapeStart;
        const uint8 *characterFrameTable;

        // Scene script
        int firstAnimSceneScript;

        // Animation script specific
        int animScriptFrameAdd;

        // Item specific
        Item maxItemId;
    };

    KyraEngine_v2(OSystem *system, const GameFlags &flags, const EngineDesc &desc);
    ~KyraEngine_v2() override;

    void pauseEngineIntern(bool pause) override;

    virtual Screen_v2 *screen_v2() const = 0;

    void delay(uint32 time, bool update = false, bool isMainLoop = false) override;

    const EngineDesc &engineDesc() const { return _desc; }
protected:
    EngineDesc _desc;

    // run
    uint32 _pauseStart;
    bool _runFlag;
    bool _showOutro;

    virtual void update() = 0;
    virtual void updateWithText() = 0;

    // detection
    int _lang;
    const int _numLang;
    int _langIntern;
    int _scriptLang;

    // Input
    virtual int inputSceneChange(int x, int y, int unk1, int unk2) = 0;

    // Animator
    struct AnimObj {
        uint16 index;
        uint16 type;
        bool enabled;
        uint16 needRefresh;
        uint16 specialRefresh;
        uint16 animFlags;
        uint16 flags;
        int16 xPos1, yPos1;
        uint8 *shapePtr;
        uint16 shapeIndex1;
        uint16 animNum;
        uint16 shapeIndex3;
        uint16 shapeIndex2;
        int16 xPos2, yPos2;
        int16 xPos3, yPos3;
        int16 width, height;
        int16 width2, height2;
        uint16 palette;
        AnimObj *nextObject;
    };

    void allocAnimObjects(int actors, int anims, int items);
    AnimObj *_animObjects;

    AnimObj *_animActor;
    AnimObj *_animAnims;
    AnimObj *_animItems;

    bool _drawNoShapeFlag;
    AnimObj *_animList;

    AnimObj *initAnimList(AnimObj *list, AnimObj *entry);
    AnimObj *addToAnimListSorted(AnimObj *list, AnimObj *entry);
    AnimObj *deleteAnimListEntry(AnimObj *list, AnimObj *entry);

    virtual void refreshAnimObjects(int force) = 0;
    void refreshAnimObjectsIfNeed();

    void flagAnimObjsSpecialRefresh();
    void flagAnimObjsForRefresh();

    virtual void clearAnimObjects() = 0;

    virtual void drawAnimObjects() = 0;
    virtual void drawSceneAnimObject(AnimObj *obj, int x, int y, int drawLayer) = 0;
    virtual void drawCharacterAnimObject(AnimObj *obj, int x, int y, int drawLayer) = 0;

    virtual void updateCharacterAnim(int) = 0;
    virtual void updateSceneAnim(int anim, int newFrame) = 0;

    void addItemToAnimList(int item);
    void deleteItemAnimEntry(int item);

    virtual void animSetupPaletteEntry(AnimObj *){}

    virtual void setCharacterAnimDim(int w, int h) = 0;
    virtual void resetCharacterAnimDim() = 0;

    virtual int getScale(int x, int y) = 0;

    uint8 *_screenBuffer;

    // Scene
    struct SceneDesc {
        char filename1[10];
        char filename2[10];

        uint16 exit1, exit2, exit3, exit4;
        uint8 flags;
        uint8 sound;
    };

    SceneDesc *_sceneList;
    int _sceneListSize;
    uint16 _currentScene;

    uint16 _sceneExit1, _sceneExit2, _sceneExit3, _sceneExit4;
    int _sceneEnterX1, _sceneEnterY1, _sceneEnterX2, _sceneEnterY2,
        _sceneEnterX3, _sceneEnterY3, _sceneEnterX4, _sceneEnterY4;
    int _specialExitCount;
    uint16 _specialExitTable[25];
    bool checkSpecialSceneExit(int num, int x, int y);

    bool _overwriteSceneFacing;

    virtual void enterNewScene(uint16 newScene, int facing, int unk1, int unk2, int unk3) = 0;

    void runSceneScript6();

    EMCData _sceneScriptData;
    EMCState _sceneScriptState;

    virtual int trySceneChange(int *moveTable, int unk1, int unk2) = 0;

    // Animation
    virtual void restorePage3() = 0;

    struct SceneAnim {
        uint16 flags;
        int16 x, y;
        int16 x2, y2;
        int16 width, height;
        uint16 specialSize;
        int16 shapeIndex;
        uint16 wsaFlag;
        char filename[14];
    };

    SceneAnim _sceneAnims[16];
    WSAMovie_v2 *_sceneAnimMovie[16];

    void freeSceneAnims();

    bool _specialSceneScriptState[10];
    bool _specialSceneScriptStateBackup[10];
    EMCState _sceneSpecialScripts[10];
    uint32 _sceneSpecialScriptsTimer[10];
    int _lastProcessedSceneScript;
    bool _specialSceneScriptRunFlag;

    void updateSpecialSceneScripts();

    // Sequences
    EMCData _animationScriptData;
    EMCState _animationScriptState;
    Common::Array<const Opcode *> _opcodesAnimation;

    void runAnimationScript(const char *filename, int allowSkip, int resetChar, int newShapes, int shapeUnload);

    int o2a_setAnimationShapes(EMCState *script);
    int o2a_setResetFrame(EMCState *script);

    char _animShapeFilename[14];

    uint8 *_animShapeFiledata;
    int _animShapeCount;
    int _animShapeLastEntry;

    int _animNewFrame;
    int _animDelayTime;

    int _animResetFrame;

    int _animShapeWidth, _animShapeHeight;
    int _animShapeXAdd, _animShapeYAdd;

    bool _animNeedUpdate;

    virtual int initAnimationShapes(uint8 *filedata) = 0;
    void processAnimationScript(int allowSkip, int resetChar);
    virtual void uninitAnimationShapes(int count, uint8 *filedata) = 0;

    // Shapes
    typedef Common::HashMap<int, uint8 *> ShapeMap;
    ShapeMap _gameShapes;

    uint8 *getShapePtr(int index) const;
    void addShapeToPool(const uint8 *data, int realIndex, int shape);
    void addShapeToPool(uint8 *shpData, int index);
    void remShapeFromPool(int idx);

    int _characterShapeFile;
    virtual void loadCharacterShapes(int shapes) = 0;

    // pathfinder
    int _movFacingTable[600];
    int _pathfinderFlag;
    bool _smoothingPath;

    int findWay(int curX, int curY, int dstX, int dstY, int *moveTable, int moveTableSize) override;

    bool directLinePassable(int x, int y, int toX, int toY);

    int pathfinderInitPositionTable(int *moveTable);
    int pathfinderAddToPositionTable(int index, int v1, int v2);
    int pathfinderInitPositionIndexTable(int tableLen, int x, int y);
    int pathfinderAddToPositionIndexTable(int index, int v);
    void pathfinderFinializePath(int *moveTable, int unk1, int x, int y, int moveTableSize);

    int _pathfinderPositionTable[400];
    int _pathfinderPositionIndexTable[200];

    // items
    struct ItemDefinition {
        Item id;
        uint16 sceneId;
        int16 x;
        uint8 y;
    };

    void initItemList(int size);

    Item _hiddenItems[100];

    ItemDefinition *_itemList;
    int _itemListSize;

    int _itemInHand;
    int _savedMouseState;

    int findFreeItem();
    int countAllItems();

    int findItem(uint16 sceneId, Item id);
    int findItem(Item item);

    void resetItemList();
    void resetItem(int index);

    virtual void setMouseCursor(Item item) = 0;

    void setHandItem(Item item) override;
    void removeHandItem() override;

    // character
    struct Character {
        uint16 sceneId;
        int16 dlgIndex;
        uint8 height;
        uint8 facing;
        uint16 animFrame;
        byte walkspeed;
        Item inventory[20];
        int16 x1, y1;
        int16 x2, y2;
        int16 x3, y3;
    };

    Character _mainCharacter;
    int _mainCharX, _mainCharY;
    int _charScale;

    void moveCharacter(int facing, int x, int y);
    int updateCharPos(int *table, int force = 0);
    void updateCharPosWithUpdate();

    uint32 _updateCharPosNextUpdate;

    virtual int getCharacterWalkspeed() const = 0;
    virtual void updateCharAnimFrame(int *table) = 0;

    // chat
    int _vocHigh;

    Common::String _chatText;
    int _chatObject;
    uint32 _chatEndTime;
    int _chatVocHigh, _chatVocLow;
    bool _chatTextEnabled;

    EMCData _chatScriptData;
    EMCState _chatScriptState;

    virtual void setDlgIndex(int dlgIndex) = 0;

    virtual void randomSceneChat() = 0;

    // unknown
    int _unk4, _unk5;
    bool _unkSceneScreenFlag1;
    bool _unkHandleSceneChangeFlag;

    // opcodes
    int o2_getCharacterX(EMCState *script);
    int o2_getCharacterY(EMCState *script);
    int o2_getCharacterFacing(EMCState *script);
    int o2_getCharacterScene(EMCState *script);
    int o2_setCharacterFacingOverwrite(EMCState *script);
    int o2_trySceneChange(EMCState *script);
    int o2_moveCharacter(EMCState *script);
    int o2_checkForItem(EMCState *script);
    int o2_defineItem(EMCState *script);
    int o2_addSpecialExit(EMCState *script);
    int o2_delay(EMCState *script);
    int o2_update(EMCState *script);
    int o2_getShapeFlag1(EMCState *script);
    int o2_waitForConfirmationClick(EMCState *script);
    int o2_randomSceneChat(EMCState *script);
    int o2_setDlgIndex(EMCState *script);
    int o2_getDlgIndex(EMCState *script);
    int o2_defineRoomEntrance(EMCState *script);
    int o2_runAnimationScript(EMCState *script);
    int o2_setSpecialSceneScriptRunTime(EMCState *script);
    int o2_defineScene(EMCState *script);
    int o2_setSpecialSceneScriptState(EMCState *script);
    int o2_clearSpecialSceneScriptState(EMCState *script);
    int o2_querySpecialSceneScriptState(EMCState *script);
    int o2_setHiddenItemsEntry(EMCState *script);
    int o2_getHiddenItemsEntry(EMCState *script);
    int o2_disableTimer(EMCState *script);
    int o2_enableTimer(EMCState *script);
    int o2_setTimerCountdown(EMCState *script);
    int o2_setVocHigh(EMCState *script);
    int o2_getVocHigh(EMCState *script);
};

} // End of namespace Kyra

#endif