/* ray.h */

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include <memory.h>
#include <assert.h>

class view_t
{
private:
   int    win_x_size;
   int    win_y_size;
   double world_x_size;
   double world_y_size;
   double viewpt[3];
}  view_t;


/* Object types */

#define FIRST_TYPE  10
#define LIGHT       10
#define SPHERE      11
#define PLANE       12
#define CYL         13
#define ELLIPSE     14
#define TILED_PLANE 15
#define SPOTLIGHT   16
#define LAST_TYPE   16

typedef struct obj_type
{
   struct  obj_type  *next;
   int     objid;
   int     objtype;
   double  (*hits)();
   void    (*uninorm)();

/* Optional plugins for retrieval of reflectivity */
/* useful for the ever-popular tiled floor        */

   void    (*getamb)();
   void    (*getdiff)();
   void    (*getspec)();

   double  ambient[3];    /* Reflectivity for materials  */
   double  diffuse[3];
   double  specular[3];

   double  emissivity[3]; /* For lights                  */

   void    *priv;        /* Private type-dependent data */
   double  hitloc[3];    /* Last hit point              */
   double  normal[3];    /* Normal at hit point         */
} obj_t;


typedef struct sphere_type
{
   double  center[3];
   double  radius;
}  sphere_t;

typedef struct light_type
{
   double  center[3];
   double  radius;
   double  direction[3];      /* For spot lights         */
   double  costheta;          /* Half-width of spot cone */
}  light_t;

typedef struct ellipse_type
{
   double  center[3];
   double  scale[3];
   double  radius;
}  ellipse_t;

typedef struct cyl_type
{
   double  center[3];
   double  centerline[3];
   double  radius;
   double  height;
}  cyl_t;

typedef struct plane_type
{
   double  normal[3];
   double  point[3];
   double  gridsize;      /* for tiled planes */
   double  ambient[3];    /* Reflectivity for materials  */
   double  diffuse[3];    /* for dark side               */
   double  specular[3];
}  plane_t;


typedef struct list_type
{
   obj_t   *head;
   obj_t   *tail;
} list_t;

#include "rayhdrs.h"
#include "veclib3d.h"