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66 lines
1.6 KiB
66 lines
1.6 KiB
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* utils.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: narnaud <narnaud@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2022/05/31 08:59:01 by narnaud #+# #+# */
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/* Updated: 2022/06/01 17:16:10 by narnaud ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../includes/cub3d.h"
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double vec_len(t_vec_d vec)
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{
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return (sqrt(vec.x * vec.x + vec.y * vec.y));
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}
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void set_vec(t_vec_d *vec, double x, double y)
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{
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vec->x = x;
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vec->y = y;
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}
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void rot_vec(t_vec_d *vec, double rad)
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{
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double len;
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len = vec_len(*vec);
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vec->x = (cos(rad) * vec->x - sin(rad) * vec->y) * 0.66 / len;
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vec->y = (sin(rad) * vec->x + cos(rad) * vec->y) * 0.66 / len;
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}
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int rgb_to_int(char **rgb)
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{
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int ret;
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int i;
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int c;
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char **colors;
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ret = 0;
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rgb++;
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colors = ft_split(*rgb, ',');
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c = 0;
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i = 0;
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while (c < 3)
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{
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if (colors[i])
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{
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ret |= ft_atoi(colors[i]) << (8 * (2 - c));
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c++;
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i++;
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}
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else
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{
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ft_free_split(colors);
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rgb++;
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i = 0;
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colors = ft_split(*rgb, ',');
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}
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}
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ft_free_split(colors);
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return (ret);
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}
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