float inter_cylindre(t_obj *object, t_ray *ray, t_inter *inter)
{
t_cylindre *cylindre;
float tmp;
t_vect pos;
cylindre = (t_cylindre*)object->obj;
tmp = calc_poly(cylindre, ray);
if (tmp != -1)
{
pos = add_vect(ray->o, mult_float(ray->dir, tmp));
tmp = magnitude(sub_vect(pos, ray->o));
if (inter->dist == -1 || tmp < inter->dist)
{
inter->pos = pos;
inter->normal = calc_normal(cylindre, pos);
inter->dist = tmp;
inter->obj = object;
}
}
return (tmp);
}
float inter_sphere(t_obj *object, t_ray *ray, t_inter *inter)
{
t_sphere *sphere;
t_vect pos;
float tmp;
sphere = (t_sphere*)(object->obj);
tmp = calc_polynomial(sphere, ray);
if (tmp != -1)
{
pos = add_vect(ray->o, mult_float(ray->dir, tmp));
tmp = magnitude(sub_vect(pos, ray->o));
if (inter->dist == -1 || tmp < inter->dist)
{
inter->pos = pos;
inter->normal = div_float(sub_vect(inter->pos, sphere->c),
sphere->r);
inter->dist = tmp;
inter->obj = object;
}
}
return (tmp);
}
//physicsfuncs------------------------
void apply_forces(vect currentspeed, double mass, vect forces){
mult_vect(mass, forces);
add_vect(forces, currentspeed);
}
void friction_power(vect dst, vect currentspeed){
add_vect(currentspeed, dst);
mult_vect(-1, dst);
}
