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OpenSceneGraph/src/osgPlugins/lua/LuaScriptEngine.h

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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2013 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library 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
* OpenSceneGraph Public License for more details.
*/
#ifndef LUASCRIPTENGINE_H
#define LUASCRIPTENGINE_H
#include <osg/ScriptEngine>
#include <osgDB/PropertyInterface>
extern "C" {
#include <lua.h>
#include <lualib.h>
#include <lauxlib.h>
}
namespace lua
{
class LuaScriptEngine : public osg::ScriptEngine
{
public:
LuaScriptEngine();
LuaScriptEngine(const LuaScriptEngine& rhs, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
META_Object(lua, LuaScriptEngine)
virtual const std::string& getLanguage() const { return _language; }
/** run a Script.*/
virtual bool run(osg::Script* script, const std::string& entryPoint, Parameters& inputParameters, Parameters& outputParameters);
/** get the lua_State object.*/
lua_State* getLuaState() { return _lua; }
int pushPropertyToStack(osg::Object* object, const std::string& propertyName) const;
int setPropertyFromStack(osg::Object* object, const std::string& propertyName) const;
protected:
void initialize();
virtual ~LuaScriptEngine();
bool loadScript(osg::Script* script);
bool isType(int pos, osgDB::BaseSerializer::Type type) const;
osgDB::BaseSerializer::Type getType(int pos) const;
bool getfields(const char* f1, const char* f2, int type) const;
bool getfields(const char* f1, const char* f2, const char* f3, int type) const;
bool getfields(const char* f1, const char* f2, const char* f3, const char* f4, int type) const;
bool getelements(int numElements, int type) const;
bool getValue(osg::Vec2f& value) const;
bool getValue(osg::Vec3f& value) const;
bool getValue(osg::Vec4f& value) const;
bool getValue(osg::Matrixf& value) const;
bool getValue(osg::Matrixd& value) const;
void pushValue(const osg::Vec2f& value) const;
void pushValue(const osg::Vec3f& value) const;
void pushValue(const osg::Vec4f& value) const;
void pushValue(const osg::Matrixf& value) const;
void pushValue(const osg::Matrixd& value) const;
bool pushParameter(osg::Object* object);
bool popParameter(osg::Object* object);
lua_State* _lua;
typedef std::set< osg::ref_ptr<osg::Script> > ScriptSet;
ScriptSet _loadedScripts;
mutable osgDB::PropertyInterface _pi;
};
}
#endif