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game.h

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2004 Ivan Dubrov
 * Copyright (C) 2004-2006 The ScummVM project
 *
 * 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL: https://svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-0-9-1/engines/gob/game.h $
 * $Id: game.h 23079 2006-06-13 08:10:54Z drmccoy $
 *
 */
#ifndef GOB_GAME_H
#define GOB_GAME_H

#include "gob/sound.h"
#include "gob/video.h"

namespace Gob {

class Game {
public:

#pragma START_PACK_STRUCTS
      struct Collision {
            int16 id;
            int16 left;
            int16 top;
            int16 right;
            int16 bottom;
            int16 flags;
            int16 key;
            int16 funcEnter;
            int16 funcLeave;
            int16 field_12; // New in GOB2
      } GCC_PACK;

#define szGame_TotResItem (4 + 2 + 2 + 2)
      struct TotResItem {
            int32 offset;     // if > 0, then offset from end of resource table.
                                    // If < 0, then -offset-1 is index in .IM file table
            int16 size;
            int16 width;
            int16 height;
      } GCC_PACK;

#define szGame_TotResTable (2 + 1)
      struct TotResTable {
            int16 itemsCount;
            byte unknown;
            TotResItem *items;
            char *dataPtr;
      } GCC_PACK;

#define szGame_ExtItem (4 + 2 + 2 + 2)
      struct ExtItem {
            int32 offset;           // offset from the table end
            uint16 size;
            int16 width;            // width&0x7fff - width, width&0x8000 - pack flag
            int16 height;           // not zero
      } GCC_PACK;

#define szGame_ExtTable (2 + 1)
      struct ExtTable {
            int16 itemsCount;
            byte unknown;
            ExtItem* items;
      } GCC_PACK;

#define szGame_TotTextItem (2 + 2)
      struct TotTextItem {
            int16 offset;
            int16 size;
      } GCC_PACK;

#define szGame_TotTextTable (2)
      struct TotTextTable {
            int16 itemsCount;
            TotTextItem *items;
            char *dataPtr;
      } GCC_PACK;

      struct InputDesc {
            int16 fontIndex;
            int16 backColor;
            int16 frontColor;
            char *ptr;
      } GCC_PACK;

      struct ImdCoord {
            int16 left;
            int16 top;
            int16 right;
            int16 bottom;
      } GCC_PACK;

      struct Imd {
            int16 fileHandle;
            int16 verMin;
            int16 framesCount;
            int16 x;
            int16 y;
            int16 width;
            int16 height;
            int16 field_E;
            int16 curFrame;
            Video::Color *palette;
            Video::SurfaceDesc *surfDesc;
            int32 *framesPos;
            int32 firstFramePos;
            int16 stdX;
            int16 stdY;
            int16 stdWidth;
            int16 stdHeight;
            int32 filePos;
            ImdCoord *frameCoords;
            int32 frameDataSize;
            int32 vidBufferSize;
      } GCC_PACK;
#pragma END_PACK_STRUCTS

      TotResTable *_totResourceTable;
      Collision *_collisionAreas;
      Collision *_collStack[5];

      TotTextTable *_totTextData;

      char _curTotFile[14];
      char _curExtFile[14];

      char *_imFileData;
      char *_totFileData;

      int16 _extHandle;

      Snd::SoundDesc *_soundSamples[60];
      int16 _soundIds[60];
      int8 _soundTypes[60];
      char _soundFromExt[60];
      bool _soundADL[60];

      char _totToLoad[20];

      int32 _startTimeKey;
      int16 _mouseButtons;

      // For totSub()
      int8 _backupedCount;
      int8 _curBackupPos;
      int16 _cursorXDeltaArray[5];
      int16 _cursorYDeltaArray[5];
      TotTextTable *_totTextDataArray[5];
      char *_totFileDataArray[5];
      TotResTable *_totResourceTableArray[5];
      ExtTable *_extTableArray[5];
      int16 _extHandleArray[5];
      char *_imFileDataArray[5];
      char *_variablesArray[5];
      char _curTotFileArray[5][14];

      Imd *_imdFile;
      char _curImdFile[15];
      int16 _imdX;
      int16 _imdY;
      int16 _imdFrameDataSize;
      int16 _imdVidBufferSize;
      byte *_imdFrameData;
      byte *_imdVidBuffer;
      int8 _byte_2FC82;
      int8 _byte_2FC83;
      byte *_word_2FC80;

      Game(GobEngine *vm);
      virtual ~Game();

      char *loadExtData(int16 dataId, int16 *pResWidth, int16 *pResHeight);
      char *loadTotResource(int16 id);

      void capturePush(int16 left, int16 top, int16 width, int16 height);

      void capturePop(char doDraw);
      void freeSoundSlot(int16 slot);
      void freeCollision(int16 id);

      void loadSound(int16 slot, char *dataPtr);
      int16 inputArea(int16 xPos, int16 yPos, int16 width, int16 height, int16 backColor,
                  int16 frontColor, char *str, int16 fontIndex, char inpType, int16 *pTotTime);
      int16 multiEdit(int16 time, int16 index, int16 *pCurPos,
                              InputDesc * inpDesc);
      int16 adjustKey(int16 key);
      void collisionsBlock(void);
      void loadTotFile(char *path);
      void loadExtTable(void);
      void loadImFile(void);
      void start(void);
      void totSub(int8 flags, char *newTotFile);
      void switchTotSub(int16 index, int16 skipPlay);
      char *loadLocTexts(void);
      Snd::SoundDesc *loadSND(const char *path, int8 arg_4);

      Imd *loadImdFile(const char *path, Video::SurfaceDesc *surfDesc, int8 flags);
      int8 openImd(const char *path, int16 x, int16 y, int16 repeat, int16 flags);
      void closeImd(void);
      void finishImd(Imd *imdPtr);
      void setImdXY(Imd *imdPtr, int16 x, int16 y);
      void playImd(int16 arg_0, int16 arg_2, int16 arg_4, int16 arg_6, int16 arg_8, int16 arg_A);
      int16 viewImd(Game::Imd *imdPtr, int16 arg_4);
      void imdDrawFrame(Imd *imdPtr, int16 arg_4, int16 arg_6, int16 arg_8);
      void imdRenderFrame(Imd *imdPtr);
      void imdFrameUncompressor(byte *dest, byte *src);
      int16 sub_2C825(Imd *imdPtr);

      virtual void playTot(int16 skipPlay) = 0;
      virtual void clearCollisions(void) = 0;
      virtual void addNewCollision(int16 id, int16 left, int16 top, int16 right,
                  int16 bottom, int16 flags, int16 key, int16 funcEnter, int16 funcLeave) = 0;
      virtual int16 checkKeys(int16 *pMousex, int16 *pMouseY, int16 *pButtons,
                              char handleMouse) = 0;
      virtual int16 checkCollisions(char handleMouse, int16 deltaTime, int16 *pResId,
                                      int16 *pResIndex) = 0;
      virtual void prepareStart(void) = 0;

      int8 _byte_2FC9B;
      int16 _word_2FC9C;
      int16 _word_2FC9E;
      int16 _word_2E51F;
      int32 _dword_2F2B6;
      Video::SurfaceDesc *_off_2E51B;
      Video::SurfaceDesc *_off_2E517;
      void sub_ADD2(void);
      void sub_BB28(void);

protected:

      int16 _lastCollKey;
      int16 _lastCollAreaIndex;
      int16 _lastCollId;

      int16 _activeCollResId;
      int16 _activeCollIndex;
      char _handleMouse;
      char _forceHandleMouse;

      char _tempStr[256];

      ExtTable *_extTable;
      char _curImaFile[18];

      int16 _collStackSize;
      int16 _collStackElemSizes[5];

      char _shouldPushColls;

      // Capture
      static Common::Rect _captureStack[20];
      static int16 _captureCount;

      char _collStr[256];

      GobEngine *_vm;
            
      int16 checkMousePoint(int16 all, int16 *resId, int16 *resIndex);
      void setCollisions(void);
      void collSub(int16 offset);
      void collAreaSub(int16 index, int8 enter);
      int16 openLocTextFile(char *locTextFile, int language);

      virtual void pushCollisions(char all) = 0;
      virtual void popCollisions(void) = 0;
};

class Game_v1 : public Game {
public:
      virtual void playTot(int16 skipPlay);
      virtual void clearCollisions(void);
      virtual void addNewCollision(int16 id, int16 left, int16 top, int16 right,
                  int16 bottom, int16 flags, int16 key, int16 funcEnter, int16 funcLeave);
      virtual int16 checkKeys(int16 *pMousex, int16 *pMouseY, int16 *pButtons,
                              char handleMouse);
      virtual int16 checkCollisions(char handleMouse, int16 deltaTime, int16 *pResId,
                                      int16 *pResIndex);
      virtual void prepareStart(void);

      Game_v1(GobEngine *vm);
      virtual ~Game_v1() {};

protected:
      virtual void pushCollisions(char all);
      virtual void popCollisions(void);
};

class Game_v2 : public Game_v1 {
public:
      virtual void playTot(int16 skipPlay);
      virtual void clearCollisions(void);
      virtual void addNewCollision(int16 id, int16 left, int16 top, int16 right,
                  int16 bottom, int16 flags, int16 key, int16 funcEnter, int16 funcLeave);
      virtual int16 checkKeys(int16 *pMousex, int16 *pMouseY, int16 *pButtons,
                              char handleMouse);
      virtual int16 checkCollisions(char handleMouse, int16 deltaTime, int16 *pResId,
                                      int16 *pResIndex);
      virtual void prepareStart(void);

      Game_v2(GobEngine *vm);
      virtual ~Game_v2() {};

protected:
      struct CollLast {
            int16 key;
            int16 id;
            int16 areaIndex;
      };

      CollLast _collLasts[5];

      virtual void pushCollisions(char all);
      virtual void popCollisions(void);
};

}                       // End of namespace Gob

#endif

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