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

#ifndef _AABB_H_
#define _AABB_H_

#include "vec.h"


/*
 * An axis-aligned bounding box.
 */
struct aabb
{
    vec_t min;
    vec_t max;
};
typedef struct aabb aabb_t;

/*
 * Initialize a axis-aligned bounding box.
 */
INLINE_MAYBE
void aabb_init(aabb_t* b, vec_t min, vec_t max)
{
    b->min = min;
    b->max = max;
}


/*
 * Create a new axis-aligned bounding box.
 */
INLINE_MAYBE
aabb_t aabb_new(vec_t min, vec_t max)
{
    aabb_t b;
    aabb_init(&b, min, max);
    return b;
}

#define AABB_UNIT aabb_new(vec_new(S(-0.5), S(-0.5), S(-0.5)), \
                           vec_new(S( 0.5), S( 0.5), S( 0.5)))


#endif // _AABB_H_