/*******************************************************************************
//
//  kishan@hackorama.com  http://www.hackorama.com Mon Nov  1 19:17:26 PST 1999
//
//  g++  teapot.cc  -lpf -lpfdu -lpfutil -o teapot
//
*******************************************************************************/

#include <stdlib.h>

#include <Performer/pf.h>
#include <Performer/pr.h>
#include <Performer/pf/pfChannel.h>
#include <Performer/pf/pfScene.h>

#include <Performer/pf/pfDCS.h>
#include <Performer/pf/pfNode.h>
#include <Performer/pf/pfLightSource.h>

#include <Performer/pf/pfGeode.h>
#include <Performer/pr/pfGeoSet.h>
#include <Performer/pr/pfGeoState.h>

#include <Performer/pfutil.h>
#include <Performer/pfdu.h>


static pfNode *load_model();
static void mydraw( pfChannel *chan, void *data );


main (int argc, char *argv[])
{
    pfSphere bsphere;
    pfVec3 view_xyz, view_hpr;

    /* Initialise Performer processes and configs */
    pfInit();
    pfMultiprocess( PFMP_DEFAULT );
    
    pfConfig();

    /* Craete a Pipe and a pipewindow */
    pfPipe *mypipe = pfGetPipe(0);
    pfPipeWindow *pipewin = new pfPipeWindow(mypipe);
    pipewin->setWinType(PFPWIN_TYPE_X);
    pipewin->setName("hello cube" );
    pipewin->setOriginSize(0,0,512,512);
    pipewin->open();

    /* load the nodel as a node */
    pfNode *modelnode = load_model();

    /* Create a Scene and add the cube node to it */
    pfScene *myscene = new pfScene;

    /* before adding cube create a Dynamic Coordinate System */
    pfDCS *dcs = new pfDCS;

    /* now add cube to the DCS so that it can rotate */
    dcs->addChild( modelnode );

    /* add the DCS to the scene */
    myscene->addChild(dcs);

    /* light up the scene */
    myscene->addChild(new pfLightSource);

    /* Create a  Channel on the pipe and attach the myscene to it */
    pfChannel *mychan = new pfChannel(mypipe);
    mychan->setScene(myscene);

    /* Set the Camera or Viewpoint x y z  h p r and Field Of View  */
    mychan->setFOV(45.0f, 0.0f);
    dcs->getBound(&bsphere);
    mychan->setNearFar(1.0f, bsphere.radius * 10.0f );
    view_xyz.set( bsphere.center[0],
             bsphere.center[1] - (bsphere.radius * 4) ,
             bsphere.center[2] );
    view_hpr.set( 0.0, 0.0, 0.0 );
    mychan->setView(view_xyz, view_hpr);
    mychan->setTravFunc( PFTRAV_DRAW, mydraw );
    mychan->setViewport( 0.0, 1.0, 0.0, 1.0 );

    /* Run the simulation loop */
    while(1)
    {
        static float angle = 0.0; angle++;

        pfSync();

        /* Add rotation to the dcs which will rotate the cube */
        dcs->setRot( angle/4, angle/4, 0.0 );

        pfFrame();
    }

    /* since its an infinite loop above */
    /* there is no proper exit, please  ctrl+c out */
    /* in actual case you should check keyboard events */
    /* or some thing else to exit gracefully :) */
    /* exit(0); */
}

/* the draw function  */
/* just clear the scene and redraw it */

static void mydraw( pfChannel *chan, void *data )
{
    chan->clear();
    pfDraw();
}


static pfNode *load_model( )
{
	/*const char meshFile[80] = "/usr/share/Performer/data/teapot.dxf";*/
	const char meshFile[80] = "teapot.dxf";
        pfNode *myObject = pfdLoadFile(meshFile);
        return myObject;

}