/* 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 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. * */ #ifndef DRACI_SCRIPT_H #define DRACI_SCRIPT_H #include "common/array.h" #include "common/stream.h" namespace Common { class ReadStream; } namespace Draci { enum { /** The maximum number of parameters for a GPL command */ kMaxParams = 3, kNumCommands = 55 }; class DraciEngine; class Script; typedef void (Script::*GPLHandler)(const Common::Array &); typedef int (Script::*GPLOperatorHandler)(int, int) const; typedef int (Script::*GPLFunctionHandler)(int) const; /** * Represents a single command in the GPL scripting language bytecode. * Each command is represented in the bytecode by a command number and a * subnumber. */ enum GPL2ParameterType { kGPL2Num = 1, kGPL2Str = 2, kGPL2Ident = 3, kGPL2Math = 4 }; struct GPL2Command { byte _number; byte _subNumber; const char *_name; uint16 _numParams; GPL2ParameterType _paramTypes[kMaxParams]; GPLHandler _handler; }; struct GPL2Operator { GPLOperatorHandler _handler; const char *_name; }; struct GPL2Function { GPLFunctionHandler _handler; const char *_name; }; /** * A convenience data type that holds both the actual bytecode and the * length of the bytecode. Passed to Script::run(). */ struct GPL2Program { GPL2Program() : _bytecode(NULL), _length(0) {} byte *_bytecode; uint16 _length; }; class Animation; class GameObject; class Script { public: Script(DraciEngine *vm) : _vm(vm), _jump(0), _endProgram(false) { setupCommandList(); } void run(const GPL2Program &program, uint16 offset); void runWrapper(const GPL2Program &program, uint16 offset, bool disableCursor, bool releaseAnims); bool testExpression(const GPL2Program &program, uint16 offset) const; void endCurrentProgram(bool value) { _endProgram = value; } bool shouldEndProgram() const { return _endProgram; } private: int _jump; bool _endProgram; /** List of all GPL commands. Initialized in the constructor. */ const GPL2Command *_commandList; const GPL2Operator *_operatorList; const GPL2Function *_functionList; void c_If(const Common::Array ¶ms); void c_Goto(const Common::Array ¶ms); void c_Let(const Common::Array ¶ms); void load(const Common::Array ¶ms); void start(const Common::Array ¶ms); void loadMusic(const Common::Array ¶ms); void startMusic(const Common::Array ¶ms); void stopMusic(const Common::Array ¶ms); void mark(const Common::Array ¶ms); void release(const Common::Array ¶ms); void icoStat(const Common::Array ¶ms); void objStat(const Common::Array ¶ms); void objStatOn(const Common::Array ¶ms); void execInit(const Common::Array ¶ms); void execLook(const Common::Array ¶ms); void execUse(const Common::Array ¶ms); void stayOn(const Common::Array ¶ms); void walkOn(const Common::Array ¶ms); void walkOnPlay(const Common::Array ¶ms); void play(const Common::Array ¶ms); void startPlay(const Common::Array ¶ms); void justTalk(const Common::Array ¶ms); void justStay(const Common::Array ¶ms); void newRoom(const Common::Array ¶ms); void talk(const Common::Array ¶ms); void loadMap(const Common::Array ¶ms); void roomMap(const Common::Array ¶ms); void disableQuickHero(const Common::Array ¶ms); void enableQuickHero(const Common::Array ¶ms); void disableSpeedText(const Common::Array ¶ms); void enableSpeedText(const Common::Array ¶ms); void dialogue(const Common::Array ¶ms); void exitDialogue(const Common::Array ¶ms); void resetDialogue(const Common::Array ¶ms); void resetDialogueFrom(const Common::Array ¶ms); void resetBlock(const Common::Array ¶ms); void setPalette(const Common::Array ¶ms); void blackPalette(const Common::Array ¶ms); void fadePalette(const Common::Array ¶ms); void fadePalettePlay(const Common::Array ¶ms); void loadPalette(const Common::Array ¶ms); void quitGame(const Common::Array ¶ms); void pushNewRoom(const Common::Array ¶ms); void popNewRoom(const Common::Array ¶ms); int operAnd(int op1, int op2) const; int operOr(int op1, int op2) const; int operXor(int op1, int op2) const; int operSub(int op1, int op2) const; int operAdd(int op1, int op2) const; int operDiv(int op1, int op2) const; int operMul(int op1, int op2) const; int operEqual(int op1, int op2) const; int operNotEqual(int op1, int op2) const; int operGreater(int op1, int op2) const; int operLess(int op1, int op2) const; int operGreaterOrEqual(int op1, int op2) const; int operLessOrEqual(int op1, int op2) const; int operMod(int op1, int op2) const; int funcRandom(int n) const; int funcNot(int n) const; int funcIsIcoOn(int iconID) const; int funcIcoStat(int iconID) const; int funcActIco(int iconID) const; int funcIsIcoAct(int iconID) const; int funcIsObjOn(int objID) const; int funcIsObjOff(int objID) const; int funcIsObjAway(int objID) const; int funcActPhase(int objID) const; int funcObjStat(int objID) const; int funcLastBlock(int blockID) const; int funcAtBegin(int yesno) const; int funcBlockVar(int blockID) const; int funcHasBeen(int blockID) const; int funcMaxLine(int lines) const; void setupCommandList(); const GPL2Command *findCommand(byte num, byte subnum) const; int handleMathExpression(Common::ReadStream *reader) const; DraciEngine *_vm; }; } // End of namespace Draci #endif // DRACI_SCRIPT_H