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101 lines
2.8 KiB
C++
101 lines
2.8 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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*
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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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*
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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 HDB_LUA_SCRIPT_H
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#define HDB_LUA_SCRIPT_H
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struct lua_State;
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namespace HDB {
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struct Global {
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char global[32]; // name of global variable
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int valueOrString; // value = 0, string = 1
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double value; // value
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char string[32]; // string
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Global() : valueOrString(0), value(0) {
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global[0] = 0;
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string[0] = 0;
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}
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};
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class LuaScript {
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public:
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LuaScript();
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~LuaScript();
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bool loadLua(const char *name);
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void saveGlobalNumber(const char *global, double value);
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void saveGlobalString(const char *global, const char *string);
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void loadGlobal(const char *global);
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void purgeGlobals();
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void save(Common::OutSaveFile *out);
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void loadSaveFile(Common::InSaveFile *in);
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void init();
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bool initScript(Common::SeekableReadStream *stream, const char *scriptName, int32 length);
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void pushInt(int value);
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void pushString(char *string);
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void pushFunction(char *func);
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void call(int args, int returns);
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bool callFunction(const char *name, int returns);
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void invokeLuaFunction(char *luaFunc, int x, int y, int value1, int value2);
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bool executeMPC(Common::SeekableReadStream *stream, const char *name, const char *scriptName, int32 length);
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bool executeFile(const Common::String &filename);
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bool executeChunk(Common::String &chunk, const Common::String &chunkName) const;
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void checkParameters(const char *func, int params);
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const char *getStringOffStack();
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void setLuaGlobalValue(const char *name, int value);
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bool isValid() {
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return _systemInit;
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}
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// Platform-specific Constants
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int _cameraXOff;
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int _cameraYOff;
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private:
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lua_State *_state;
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int _pcallErrorhandlerRegistryIndex;
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Common::SeekableReadStream* _globalLuaStream;
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int32 _globalLuaLength;
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bool _systemInit;
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bool registerExtensions();
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void stripComments(char *chunk);
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void addPatches(Common::String &chunk, const char *scriptName);
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Common::Array<Global *> _globals;
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};
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void lua_printstack(lua_State *L);
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}
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#endif // !HDB_LUA_SCRIPT_H
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