Added Enigma game

project/jni/application/enigma/src/lua.hh

@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2002,2003,2004 Daniel Heck
+ *
+ * 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 LUA_HH
+#define LUA_HH
+
+#include "enigma.hh"
+#include "ecl_geom.hh"
+#include "objects_decl.hh"
+
+#ifdef CXXLUA
+struct lua_State;
+#else 
+extern "C" struct lua_State;
+#endif
+
+
+namespace lua
+{
+    using namespace enigma;
+
+/* -------------------- Data structures -------------------- */
+
+    struct CFunction {
+        int (*func) (lua_State *); // lua_CFunction func;
+        const char *name;
+    };
+
+    enum Error {
+        NO_LUAERROR = 0,
+        ERRRUN,
+	ERRFILE,
+	ERRSYNTAX,
+	ERRMEM,
+	ERRERR
+    };
+
+/* -------------------- Lua states for Enigma -------------------- */
+
+    lua_State *GlobalState();
+    void ShutdownGlobal();
+
+    /*! Return the Lua state that is active while the game is running.
+      This state is used to execute the Lua code that builds the level
+      and to execute signal callbacks and event handlers while the
+      game is running. */
+    lua_State *LevelState();
+
+    /*! Initialize the ingame Lua state. */
+    lua_State *InitLevel();
+
+    /*! Close the ingame Lua state. */
+    void ShutdownLevel();
+
+
+/* -------------------- Enigma/Lua bindings -------------------- */
+
+    int FindDataFile (lua_State *L);
+
+/* -------------------- Helper routines -------------------- */
+
+    /*! Register the C functions in `funcs'.  The end of the array is
+      denoted by an entry with func==0. */
+    void RegisterFuncs (lua_State *L, CFunction funcs[]);
+
+    /*! Set the value of entry `name' in the global table `tablename'. */
+    void SetTableVar (lua_State *L, const char *tablename, const char *name, double value);
+
+    /*! Call a Lua function with one argument.  This is mainly used
+      for callbacks during the game. */
+    Error CallFunc(lua_State *L, const char *funcname, const enigma::Value& arg, world::Object *obj);
+
+    /*! Call a Lua function with a (large) byte vector as the sole
+      argument.  Currently only used for loading XML levels. */
+    Error CallFunc (lua_State *L, const char *funcname, const ByteVec &arg);
+
+    /**
+     * Run a Lua script using a given absolute path.
+     */
+    Error DoAbsoluteFile (lua_State *L, const std::string & filename);
+
+    /*! Find a Lua script using enigma::FindFile and run it. */
+    Error Dofile (lua_State *L, const std::string & filename);
+
+    /*! Find a system Lua script using enigma::FindFile and run it. */
+    Error DoSysFile (lua_State *L, const std::string & filename);
+
+    /*! Find a Lua script in given filesystem using enigma::FindFile and run it. */
+    Error DoGeneralFile(lua_State *L, GameFS * fs, const string &filename);
+
+    /*! Run the Lua code contained in `luacode'. */
+    Error Dobuffer (lua_State *L, const ByteVec &luacode);
+
+    /*! Try to run given file on given filesystem.  If something
+      fails, provide generic error message and exit enigma.*/
+    void CheckedDoFile (lua_State *L, GameFS * fs, const string &filename);
+
+    /*! Return the text of the last error message. */
+    std::string LastError (lua_State *L);
+
+
+    Error DoSubfolderfile(lua_State *L, 
+                        const std::string & basefolder, 
+                        const std::string & filename);
+}
+#endif
+