#include <osg/Node>
#include <osg/Group>
#include <osg/Geode>
#include <osg/Geometry>

#include <osg/Texture2D>
#include <osgDB/ReadFile> 
#include <osgViewer/Viewer>
#include <osg/PositionAttitudeTransform>
#include <osgGA/TrackballManipulator>

int main()
{
	osg::Group *root = new osg::Group();
	osg::Geode *pyramidGeode = new osg::Geode();
	osg::Geometry *pyramidGeometry = new osg::Geometry();
	osg::Geometry *geo2 = new osg::Geometry();

	pyramidGeode->addDrawable(pyramidGeometry);
	pyramidGeode->addDrawable(geo2);
	root->addChild(pyramidGeode);

	osg::Vec3Array *vertices = new osg::Vec3Array;
	vertices->push_back(osg::Vec3(0, 0, 0));
	vertices->push_back(osg::Vec3(10, 0, 0));
	vertices->push_back(osg::Vec3(10, 10, 0));
	vertices->push_back(osg::Vec3(0, 10, 0));
	vertices->push_back(osg::Vec3(5, 5, 10));
	pyramidGeometry->setVertexArray(vertices);
	geo2->setVertexArray(vertices);

	osg::Vec4Array *colors = new osg::Vec4Array;
	colors->push_back(osg::Vec4(1.0f, 0.0f, 0.0f, 1.0f));
	colors->push_back(osg::Vec4(0.0f, 1.0f, 0.0f, 1.0f));
	colors->push_back(osg::Vec4(0.0f, 0.0f, 1.0f, 1.0f));
	colors->push_back(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f));
	colors->push_back(osg::Vec4(1.0f, 0.0f, 0.0f, 1.0f));
	pyramidGeometry->setColorArray(colors);
	pyramidGeometry->setColorBinding(osg::Geometry::BIND_PER_VERTEX);

	osg::DrawElementsUInt *base =
	    new osg::DrawElementsUInt(osg::PrimitiveSet::QUADS, 0);
	base->push_back(3);
	base->push_back(2);
	base->push_back(1);
	base->push_back(0);
	pyramidGeometry->addPrimitiveSet(base);

/*
	osg::DrawElementsUInt *faceOne =
	    new osg::DrawElementsUInt(osg::PrimitiveSet::TRIANGLES, 0);
	faceOne->push_back(0);
	faceOne->push_back(1);
	faceOne->push_back(4);
	pyramidGeometry->addPrimitiveSet(faceOne);

	osg::DrawElementsUInt *faceTwo =
	    new osg::DrawElementsUInt(osg::PrimitiveSet::TRIANGLES, 0);
	faceTwo->push_back(1);
	faceTwo->push_back(2);
	faceTwo->push_back(4);
	pyramidGeometry->addPrimitiveSet(faceTwo);

	osg::DrawElementsUInt *faceThree =
	    new osg::DrawElementsUInt(osg::PrimitiveSet::TRIANGLES, 0);
	faceThree->push_back(2);
	faceThree->push_back(3);
	faceThree->push_back(4);
	pyramidGeometry->addPrimitiveSet(faceThree);

	osg::DrawElementsUInt *faceFour =
	    new osg::DrawElementsUInt(osg::PrimitiveSet::TRIANGLES, 0);
	faceFour->push_back(3);
	faceFour->push_back(0);
	faceFour->push_back(4);
	pyramidGeometry->addPrimitiveSet(faceFour);
*/

	osg::DrawElementsUInt *indices = 
	    new osg::DrawElementsUInt(osg::PrimitiveSet::TRIANGLES, 0);
	indices->push_back(0);
	indices->push_back(1);
	indices->push_back(4);
	indices->push_back(1);
	indices->push_back(2);
	indices->push_back(4);
	indices->push_back(2);
	indices->push_back(3);
	indices->push_back(4);
	indices->push_back(3);
	indices->push_back(0);
	indices->push_back(4);
	pyramidGeometry->addPrimitiveSet(indices);

	root->getOrCreateStateSet()->setMode(GL_LIGHTING,
	                                     osg::StateAttribute::OFF);

	// write file
	osgDB::ReaderWriter::WriteResult result =
	    osgDB::Registry::instance()->writeNode(*root,"asdf.osg",
	    osgDB::Registry::instance()->getOptions());

	osgViewer::Viewer viewer;

	viewer.setSceneData(root);
	viewer.setCameraManipulator(new osgGA::TrackballManipulator());
	viewer.setUpViewInWindow(0, 0, 640, 480);
	viewer.realize();
	while (!viewer.done())
		viewer.frame();

	return 0;
}