mirror of
https://github.com/libretro/scummvm.git
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201 lines
6.4 KiB
C++
201 lines
6.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef DRACI_SCRIPT_H
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#define DRACI_SCRIPT_H
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#include "common/array.h"
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#include "common/stream.h"
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namespace Common {
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class ReadStream;
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}
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namespace Draci {
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enum {
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/** The maximum number of parameters for a GPL command */
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kMaxParams = 3,
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kNumCommands = 55
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};
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class DraciEngine;
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class Script;
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typedef void (Script::*GPLHandler)(const Common::Array<int> &);
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typedef int (Script::*GPLOperatorHandler)(int, int) const;
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typedef int (Script::*GPLFunctionHandler)(int) const;
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/**
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* Represents a single command in the GPL scripting language bytecode.
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* Each command is represented in the bytecode by a command number and a
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* subnumber.
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*/
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enum GPL2ParameterType {
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kGPL2Num = 1,
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kGPL2Str = 2,
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kGPL2Ident = 3,
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kGPL2Math = 4
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};
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struct GPL2Command {
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byte _number;
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byte _subNumber;
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const char *_name;
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uint16 _numParams;
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GPL2ParameterType _paramTypes[kMaxParams];
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GPLHandler _handler;
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};
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struct GPL2Operator {
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GPLOperatorHandler _handler;
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const char *_name;
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};
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struct GPL2Function {
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GPLFunctionHandler _handler;
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const char *_name;
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};
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/**
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* A convenience data type that holds both the actual bytecode and the
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* length of the bytecode. Passed to Script::run().
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*/
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struct GPL2Program {
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GPL2Program() : _bytecode(NULL), _length(0) {}
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byte *_bytecode;
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uint16 _length;
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};
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class Animation;
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class GameObject;
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class Script {
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public:
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Script(DraciEngine *vm) : _vm(vm), _jump(0), _endProgram(false) { setupCommandList(); }
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void run(const GPL2Program &program, uint16 offset);
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void runWrapper(const GPL2Program &program, uint16 offset, bool disableCursor, bool releaseAnims);
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bool testExpression(const GPL2Program &program, uint16 offset) const;
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void endCurrentProgram(bool value) { _endProgram = value; }
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bool shouldEndProgram() const { return _endProgram; }
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private:
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int _jump;
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bool _endProgram;
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/** List of all GPL commands. Initialized in the constructor. */
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const GPL2Command *_commandList;
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const GPL2Operator *_operatorList;
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const GPL2Function *_functionList;
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void c_If(const Common::Array<int> ¶ms);
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void c_Goto(const Common::Array<int> ¶ms);
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void c_Let(const Common::Array<int> ¶ms);
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void load(const Common::Array<int> ¶ms);
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void start(const Common::Array<int> ¶ms);
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void loadMusic(const Common::Array<int> ¶ms);
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void startMusic(const Common::Array<int> ¶ms);
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void stopMusic(const Common::Array<int> ¶ms);
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void mark(const Common::Array<int> ¶ms);
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void release(const Common::Array<int> ¶ms);
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void icoStat(const Common::Array<int> ¶ms);
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void objStat(const Common::Array<int> ¶ms);
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void objStatOn(const Common::Array<int> ¶ms);
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void execInit(const Common::Array<int> ¶ms);
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void execLook(const Common::Array<int> ¶ms);
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void execUse(const Common::Array<int> ¶ms);
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void stayOn(const Common::Array<int> ¶ms);
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void walkOn(const Common::Array<int> ¶ms);
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void walkOnPlay(const Common::Array<int> ¶ms);
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void play(const Common::Array<int> ¶ms);
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void startPlay(const Common::Array<int> ¶ms);
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void justTalk(const Common::Array<int> ¶ms);
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void justStay(const Common::Array<int> ¶ms);
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void newRoom(const Common::Array<int> ¶ms);
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void talk(const Common::Array<int> ¶ms);
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void loadMap(const Common::Array<int> ¶ms);
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void roomMap(const Common::Array<int> ¶ms);
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void disableQuickHero(const Common::Array<int> ¶ms);
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void enableQuickHero(const Common::Array<int> ¶ms);
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void disableSpeedText(const Common::Array<int> ¶ms);
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void enableSpeedText(const Common::Array<int> ¶ms);
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void dialogue(const Common::Array<int> ¶ms);
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void exitDialogue(const Common::Array<int> ¶ms);
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void resetDialogue(const Common::Array<int> ¶ms);
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void resetDialogueFrom(const Common::Array<int> ¶ms);
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void resetBlock(const Common::Array<int> ¶ms);
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void setPalette(const Common::Array<int> ¶ms);
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void blackPalette(const Common::Array<int> ¶ms);
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void fadePalette(const Common::Array<int> ¶ms);
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void fadePalettePlay(const Common::Array<int> ¶ms);
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void loadPalette(const Common::Array<int> ¶ms);
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void quitGame(const Common::Array<int> ¶ms);
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void pushNewRoom(const Common::Array<int> ¶ms);
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void popNewRoom(const Common::Array<int> ¶ms);
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int operAnd(int op1, int op2) const;
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int operOr(int op1, int op2) const;
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int operXor(int op1, int op2) const;
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int operSub(int op1, int op2) const;
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int operAdd(int op1, int op2) const;
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int operDiv(int op1, int op2) const;
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int operMul(int op1, int op2) const;
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int operEqual(int op1, int op2) const;
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int operNotEqual(int op1, int op2) const;
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int operGreater(int op1, int op2) const;
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int operLess(int op1, int op2) const;
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int operGreaterOrEqual(int op1, int op2) const;
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int operLessOrEqual(int op1, int op2) const;
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int operMod(int op1, int op2) const;
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int funcRandom(int n) const;
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int funcNot(int n) const;
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int funcIsIcoOn(int iconID) const;
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int funcIcoStat(int iconID) const;
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int funcActIco(int iconID) const;
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int funcIsIcoAct(int iconID) const;
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int funcIsObjOn(int objID) const;
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int funcIsObjOff(int objID) const;
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int funcIsObjAway(int objID) const;
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int funcActPhase(int objID) const;
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int funcObjStat(int objID) const;
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int funcLastBlock(int blockID) const;
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int funcAtBegin(int yesno) const;
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int funcBlockVar(int blockID) const;
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int funcHasBeen(int blockID) const;
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int funcMaxLine(int lines) const;
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void setupCommandList();
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const GPL2Command *findCommand(byte num, byte subnum) const;
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int handleMathExpression(Common::ReadStream *reader) const;
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DraciEngine *_vm;
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};
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} // End of namespace Draci
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#endif // DRACI_SCRIPT_H
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