/*
 * CS5600 University of Utah
 * Charles McGarvey
 * mcgarvey@eng.utah.edu
 */

#ifndef _VERT_H_
#define _VERT_H_

#include "color.h"
#include "vec.h"


/*
 * A vertex is a point, a normal, and a color.
 */
struct vert
{
    vec_t   v;
    vec_t   n;
    vec_t   t;
    color_t c;
};
typedef struct vert vert_t;


/*
 * Initialize a vertex with a point vector, normal, texture coordinates,
 * and a color.
 */
INLINE_MAYBE
void vert_init(vert_t* r, vec_t v, vec_t n, vec_t t, color_t c)
{
    r->v = v;
    r->n = n;
    r->t = t;
    r->c = c;
}


/*
 * Create a new vertex with a point vector.
 */
INLINE_MAYBE
vert_t vert_new(vec_t v)
{
    vert_t r;
    vert_init(&r, v, VEC_ZERO, VEC_ZERO, COLOR_WHITE);
    return r;
}

/*
 * Create a new vertex from vector components.
 */
INLINE_MAYBE
vert_t vert_new2(scal_t x, scal_t y, scal_t z)
{
    return vert_new(vec_new(x, y, z));
}

#define VERT_ZERO vert_new(VEC_ZERO)


#endif // _VERT_H_