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/* 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.
*
* $URL$
* $Id$
*
*/
/*
* This code is based on Broken Sword 2.5 engine
*
* Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
*
* Licensed under GNU GPL v2
*
*/
#ifndef SWORD25_LUASCRIPT_H
#define SWORD25_LUASCRIPT_H
// -----------------------------------------------------------------------------
// Includes
// -----------------------------------------------------------------------------
#include "common/str.h"
#include "common/str-array.h"
#include "sword25/kernel/common.h"
#include "sword25/script/script.h"
// -----------------------------------------------------------------------------
// Forward declarations
// -----------------------------------------------------------------------------
namespace Lua {
struct lua_State;
}
using namespace Lua;
namespace Sword25 {
class BS_Kernel;
// -----------------------------------------------------------------------------
// Class declaration
// -----------------------------------------------------------------------------
class BS_LuaScriptEngine : public BS_ScriptEngine {
public:
// -----------------------------------------------------------------------------
// Constructor / Destructor
// -----------------------------------------------------------------------------
BS_LuaScriptEngine(BS_Kernel *KernelPtr);
virtual ~BS_LuaScriptEngine();
/**
* Initialises the scripting engine
* @return Returns true if successful, otherwise false.
*/
virtual bool Init();
/**
* Loads a script file and executes it
* @param FileName The filename of the script
* @return Returns true if successful, otherwise false.
*/
virtual bool ExecuteFile(const Common::String &FileName);
/**
* Execute a string of script code
* @param Code A string of script code
* @return Returns true if successful, otherwise false.
*/
virtual bool ExecuteString(const Common::String &Code);
/**
* Returns a pointer to the main object of the scripting language
* @remark Using this method breaks the encapsulation of the language
*/
virtual void *GetScriptObject() {
return m_State;
}
/**
* Makes the command line parameters for the scripting environment available
* @param CommandLineParameters An array containing all the command line parameters
* @remark How the command line parameters will be used by scripts is
* dependant on the particular implementation.
*/
virtual void SetCommandLine(const Common::StringArray &CommandLineParameters);
/**
* @remark The Lua stack is cleared by this method
*/
virtual bool Persist(BS_OutputPersistenceBlock &Writer);
/**
* @remark The Lua stack is cleared by this method
*/
virtual bool Unpersist(BS_InputPersistenceBlock &Reader);
private:
lua_State *m_State;
int m_PcallErrorhandlerRegistryIndex;
bool RegisterStandardLibs();
bool RegisterStandardLibExtensions();
bool ExecuteBuffer(const byte *Data, unsigned int Size, const Common::String &Name) const;
};
} // End of namespace Sword25
#endif
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