71 lines
2 KiB
C
71 lines
2 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* frame_update2.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: rparodi <rparodi@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/12/01 18:55:11 by rparodi #+# #+# */
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/* Updated: 2024/12/16 09:43:18 by bgoulard ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "cub3d.h"
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#include "cub3d_struct.h"
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#include "ft_string.h"
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#include <unistd.h>
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void draw_bg(t_info *data)
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{
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t_ipoint temp;
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int switch_point;
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int color;
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ft_bzero(&temp, sizeof(t_ipoint));
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switch_point = data->screen_size.y / 2;
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color = data->map.bg_colors[BG_SKY].color;
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while (temp.y < data->screen_size.y)
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{
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temp.x = 0;
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while (temp.x < data->screen_size.x)
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{
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my_mlx_pixel_put(data, temp.x, temp.y, color);
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temp.x++;
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}
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temp.y++;
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if (temp.y >= switch_point)
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color = data->map.bg_colors[BG_FLR].color;
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}
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}
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void set_step(t_ipoint *step, t_dpoint raydir)
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{
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if (raydir.x < 0)
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step->x = -1;
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else
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step->x = 1;
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if (raydir.y < 0)
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step->y = -1;
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else
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step->y = 1;
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}
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void set_side_dist(t_dpoint *side_dist, t_dpoint *tb, t_ipoint pos_i)
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{
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t_dpoint ray_dir;
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t_dpoint pos;
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t_dpoint delta_dist;
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ray_dir = tb[0];
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pos = tb[1];
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delta_dist = tb[2];
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if (ray_dir.x < 0)
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side_dist->x = (pos.x - pos_i.x) * delta_dist.x;
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else
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side_dist->x = (pos_i.x + 1.0 - pos.x) * delta_dist.x;
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if (ray_dir.y < 0)
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side_dist->y = (pos.y - pos_i.y) * delta_dist.y;
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else
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side_dist->y = (pos_i.y + 1.0 - pos.y) * delta_dist.y;
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}
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