///////
//
// kirtrace.hpp
//
// header for actual tracing code...
//
// stat: 2 final
//
// note #defines here to turn new features on/off and control params
//

#ifndef _KIRAY_
#define _KIRAY_

#include "object.hpp"
#include "light.hpp"
#include "camera.hpp"
#include "ppmgl2d.hpp"

#define MAXAGE 3          //maximum number of ray bounces
#define MAXDIST 100000    //maximum ray travel distance
#define ANTIALIAS
#define GLOSSY
#define GLOSSFACTOR 0.06
#define GLOSSNUM 6
#define SOFTSHADOW
#define SOFTNUM 6
#define TEXTURE

class kiray : public ppmGL2d
{

 public:
  object* *objs;     // object list
  int numObjs;
  light* *lights;    // light list
  int numLights;
  Vec3f bg;          // default "infinite distance" color
  Camera Cam;        // camera, currently from camera.hpp

  unsigned char* Texture;     //yes, having this stuff here is awful
  int texW, texH;


  kiray(int W, int H, object* *o, int numo, light* *l, int numl, unsigned char* Tex, int tw, int th) : ppmGL2d(W,H)
  {
    objs = o;
    numObjs = numo;
    lights = l;
    numLights = numl;
    Texture = Tex;
    texW = tw;
    texH = th;
    bg.Set(0,0,0);     // set default black background
  }

  void traceAll();
  Vec3f traceRay(Vec3f &start, Vec3f &dir, int age, int out);
         //age is number of bounces to this ray, 
	 //out is (outside object ? 1 : 0)

  int getObject(Vec3f &start, Vec3f &dir, object **hitObject, float *hitTime);
  Vec3f shadowray(Vec3f &start, Vec3f &dir, float lightDist);

};

#endif