123 lines
3.8 KiB
C++
123 lines
3.8 KiB
C++
/*
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* Copyright (C) 2002,2003,2004 Daniel Heck
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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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef LUA_HH
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#define LUA_HH
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#include "enigma.hh"
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#include "ecl_geom.hh"
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#include "objects_decl.hh"
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#ifdef CXXLUA
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struct lua_State;
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#else
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extern "C" struct lua_State;
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#endif
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namespace lua
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{
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using namespace enigma;
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/* -------------------- Data structures -------------------- */
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struct CFunction {
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int (*func) (lua_State *); // lua_CFunction func;
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const char *name;
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};
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enum Error {
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NO_LUAERROR = 0,
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ERRRUN,
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ERRFILE,
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ERRSYNTAX,
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ERRMEM,
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ERRERR
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};
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/* -------------------- Lua states for Enigma -------------------- */
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lua_State *GlobalState();
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void ShutdownGlobal();
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/*! Return the Lua state that is active while the game is running.
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This state is used to execute the Lua code that builds the level
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and to execute signal callbacks and event handlers while the
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game is running. */
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lua_State *LevelState();
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/*! Initialize the ingame Lua state. */
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lua_State *InitLevel();
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/*! Close the ingame Lua state. */
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void ShutdownLevel();
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/* -------------------- Enigma/Lua bindings -------------------- */
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int FindDataFile (lua_State *L);
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/* -------------------- Helper routines -------------------- */
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/*! Register the C functions in `funcs'. The end of the array is
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denoted by an entry with func==0. */
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void RegisterFuncs (lua_State *L, CFunction funcs[]);
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/*! Set the value of entry `name' in the global table `tablename'. */
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void SetTableVar (lua_State *L, const char *tablename, const char *name, double value);
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/*! Call a Lua function with one argument. This is mainly used
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for callbacks during the game. */
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Error CallFunc(lua_State *L, const char *funcname, const enigma::Value& arg, world::Object *obj);
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/*! Call a Lua function with a (large) byte vector as the sole
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argument. Currently only used for loading XML levels. */
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Error CallFunc (lua_State *L, const char *funcname, const ByteVec &arg);
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/**
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* Run a Lua script using a given absolute path.
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*/
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Error DoAbsoluteFile (lua_State *L, const std::string & filename);
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/*! Find a Lua script using enigma::FindFile and run it. */
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Error Dofile (lua_State *L, const std::string & filename);
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/*! Find a system Lua script using enigma::FindFile and run it. */
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Error DoSysFile (lua_State *L, const std::string & filename);
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/*! Find a Lua script in given filesystem using enigma::FindFile and run it. */
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Error DoGeneralFile(lua_State *L, GameFS * fs, const string &filename);
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/*! Run the Lua code contained in `luacode'. */
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Error Dobuffer (lua_State *L, const ByteVec &luacode);
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/*! Try to run given file on given filesystem. If something
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fails, provide generic error message and exit enigma.*/
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void CheckedDoFile (lua_State *L, GameFS * fs, const string &filename);
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/*! Return the text of the last error message. */
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std::string LastError (lua_State *L);
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Error DoSubfolderfile(lua_State *L,
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const std::string & basefolder,
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const std::string & filename);
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}
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#endif
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