#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <Performer/pf/pfChannel.h>
#include <Performer/pf/pfLightSource.h>
#include <Performer/pf/pfDCS.h>
#include <Performer/pf/pfTraverser.h>
#include <Performer/pfdu.h>
#include <pfcave.h>
#include "simpleNavigator.h"

static void createScene(pfChannel *chan,int argc,char **argv);
static pfNode * animatedObject(char *file);
static int moveObject(pfTraverser *trav,void *);


int main(int argc,char **argv)
{
 pfInit();
 simpleNavigator::init();
 pfCAVEConfig(&argc,argv,NULL);
 pfConfig();
 pfCAVEInitChannels();
 if (CAVEConfig->Simulator)
	pfCAVEMasterChan()->getFStats()->setClass(
			PFSTATS_ALL^PFSTATSHW_ENGFXPIPE_FILL, PFSTATS_ON);
 else
	pfCAVEMasterChan()->getFStats()->setClass(PFSTATS_ALL, PFSTATS_OFF);
 createScene(pfCAVEMasterChan(),argc,argv);
 while (!CAVEgetbutton(CAVE_ESCKEY))
	{
	pfSync();
	pfCAVEPreFrame();
	pfFrame();
	pfCAVEPostFrame();
	}
 pfCAVEHalt();
 pfExit();
 return 0;
}


/* createScene() - creates the scene.
*/
static void createScene(pfChannel *chan,int argc,char **argv)
{
 pfScene *scene;
 pfGeoState *gstate;
 simpleNavigator *nav;
 scene = new pfScene;
 gstate = new pfGeoState;
 gstate->setMode(PFSTATE_ENLIGHTING, PF_ON);
 gstate->setMode(PFSTATE_CULLFACE, PFCF_OFF);
 scene->setGState(gstate);
 scene->addChild(new pfLightSource);
 nav = new simpleNavigator;
 scene->addChild(nav);
 if (argc > 1)
	nav->addChild(animatedObject(argv[1]));
 if (argc > 2)
	nav->addChild(pfdLoadFile(argv[2]));
 chan->setScene(scene);
}


static pfNode * animatedObject(char *file)
{
 pfNode *obj;
 pfDCS *dcs;
 obj = pfdLoadFile(file);
 if (!obj)
	pfExit();
 dcs = new pfDCS;
 dcs->setTravFuncs(PFTRAV_APP,moveObject,NULL);
 dcs->addChild(obj);
 return dcs;
}


static int moveObject(pfTraverser *trav,void *)
{
#define RADIUS 8.0f
 pfDCS *dcs = (pfDCS *) trav->getNode();             /* Get a pointer to the DCS node itself */
 float sine,cosine,sine2,cosine2;
 pfSinCos(pfGetTime()*90.0f, &sine, &cosine);
 pfSinCos(pfGetTime()*300.0f, &sine2, &cosine2);
 dcs->setTrans(cosine*RADIUS, sine*RADIUS, 4.0f * sine2 + 4.0f);
 return PFTRAV_CONT;
}