Colony

/**

 * @file world.c

 * @author Colony Project

 * @brief Simulator world code

 *

 * This is the world.

 **/

#include <stdio.h>

#include "world.h"

double collide_circle(ray_t *ray, object_t *obj){

    return -1;

}

double collide_rect(ray_t *ray, object_t *obj){

    return -2;

}

double collide(ray_t *ray, object_t *obj) {

    if (ray == NULL || obj == NULL)

	return -1;

    return collide_func[obj->id](ray, obj);

}

 * @brief THE WHOLE WIDE WORLD

 * for managing the world.

#define ID_RECTANGLE 0

#define ID_CIRCLE 1

#define NUM_SHAPES 2

    point_t p; /* origin */

    double d; /* direction */

} ray_t;

typedef struct {

    bbox_t world;

/* Specific collision functions */

double collide_circle(ray_t *ray, object_t *obj);

double collide_rect(ray_t *ray, object_t *obj);

/*  Array of function pointers to the specific collide functions.

 *  Must be listed in the same order as IDs */

double  (*collide_func[NUM_SHAPES])(ray_t *ray, object_t *obj) = 

    {

	collide_rect,

	collide_circle 

    };