47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* vec_arithmetics.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: gbrochar <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2019/02/08 15:57:41 by gbrochar #+# #+# */
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/* Updated: 2019/02/21 17:15:40 by gbrochar ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "rtv1.h"
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int check_direction(t_vec d)
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{
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if (d.x + E > 0 && d.x - E < 0
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&& d.y + E > 0 && d.y - E < 0
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&& d.z + E > 0 && d.z - E < 0)
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return (FAILURE);
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return (SUCCESS);
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}
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t_vec vec_mul(t_vec vec, double scalar)
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{
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vec.x = vec.x * scalar;
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vec.y = vec.y * scalar;
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vec.z = vec.z * scalar;
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return (vec);
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}
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t_vec vec_add(t_vec u, t_vec v)
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{
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u.x = u.x + v.x;
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u.y = u.y + v.y;
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u.z = u.z + v.z;
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return (u);
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}
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t_vec vec_sub(t_vec u, t_vec v)
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{
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u.x = u.x - v.x;
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u.y = u.y - v.y;
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u.z = u.z - v.z;
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return (u);
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}
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