OpenSceneGraph/examples/osgpresentation/osgpresentation.cpp
Robert Osfield bd7ec9c5f7 Added initial cut of basic scripting support, introducing an osg::Script object to wrap up the individual scripts, osg::ScriptCallback for assigning a Script as node callback and an osg::ScriptEngine base class that plugins implement to provided support for specific scripting languages.
Provided are lua, python and V8 (for javascript) plugins that just open up enough of a link to the respective libs to run a script, there is no scene graph <-> script communication in current implementation.
2013-08-09 16:51:06 +00:00

99 lines
2.8 KiB
C++

/* Copyright Robert Osfield, Licensed under the GPL
*
* Experimental base for refactor of Present3D
*
*/
#include <osg/Geode>
#include <osg/Geometry>
#include <osg/ScriptEngine>
#include <osg/UserDataContainer>
#include <osgDB/ReadFile>
#include <osgDB/FileUtils>
#include <osgGA/TrackballManipulator>
#include <osgViewer/Viewer>
int main(int argc, char** argv)
{
osg::ArgumentParser arguments(&argc, argv);
osgViewer::Viewer viewer(arguments);
typedef std::list< osg::ref_ptr<osg::Script> > Scripts;
Scripts scripts;
std::string filename;
while(arguments.read("--script",filename))
{
osg::ref_ptr<osg::Script> script = osgDB::readFile<osg::Script>(filename);
if (script.valid()) scripts.push_back(script.get());
}
// create the model
osg::ref_ptr<osg::Node> model = osgDB::readNodeFiles(arguments);
if (!model) return 1;
// assgin script engine to scene graphs
model->getOrCreateUserDataContainer()->addUserObject(osgDB::readFile<osg::ScriptEngine>("ScriptEngine.lua"));
model->getOrCreateUserDataContainer()->addUserObject(osgDB::readFile<osg::ScriptEngine>("ScriptEngine.python"));
model->getOrCreateUserDataContainer()->addUserObject(osgDB::readFile<osg::ScriptEngine>("ScriptEngine.js"));
// assign scripts to scene graph
for(Scripts::iterator itr = scripts.begin();
itr != scripts.end();
++itr)
{
model->addUpdateCallback(new osg::ScriptCallback(itr->get()));
}
#if 0
std::string str;
osg::ref_ptr<osg::ScriptEngine> luaScriptEngine = osgDB::readFile<osg::ScriptEngine>("ScriptEngine.lua");
if (luaScriptEngine.valid())
{
while (arguments.read("--lua", str))
{
osg::ref_ptr<osg::Script> script = osgDB::readFile<osg::Script>(str);
if (script.valid())
{
luaScriptEngine->run(script.get());
}
}
}
osg::ref_ptr<osg::ScriptEngine> v8ScriptEngine = osgDB::readFile<osg::ScriptEngine>("ScriptEngine.V8");
if (v8ScriptEngine.valid())
{
while (arguments.read("--js",str))
{
osg::ref_ptr<osg::Script> script = osgDB::readFile<osg::Script>(str);
if (script.valid())
{
v8ScriptEngine->run(script.get());
}
}
}
osg::ref_ptr<osg::ScriptEngine> pythonScriptEngine = osgDB::readFile<osg::ScriptEngine>("ScriptEngine.python");
if (pythonScriptEngine.valid())
{
while (arguments.read("--python",str))
{
osg::ref_ptr<osg::Script> script = osgDB::readFile<osg::Script>(str);
if (script.valid())
{
pythonScriptEngine->run(script.get());
}
}
}
#endif
viewer.setSceneData( model.get() );
return viewer.run();
}