Cub3D/raycast/frame_update2.c
2024-12-09 14:33:53 +01:00

69 lines
1.9 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* frame_update2.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rparodi <rparodi@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/12/01 18:55:11 by rparodi #+# #+# */
/* Updated: 2024/12/05 16:43:53 by rparodi ### ########.fr */
/* */
/* ************************************************************************** */
#include "cub3d.h"
#include "cub3d_struct.h"
#include "mlx_functions.h"
#include "ft_string.h"
#include "ft_math.h"
#include <math.h>
#include <unistd.h>
void draw_floor(t_info *data)
{
t_ipoint temp;
temp.y = data->screen_size.y / 2;
while (temp.y < data->screen_size.y)
{
temp.x = 0;
while (temp.x < data->screen_size.x)
{
my_mlx_pixel_put(data, temp.x, temp.y, 0xFFFFFF);
temp.x++;
}
temp.y++;
}
}
void set_step(t_ipoint *step, t_dpoint raydir)
{
if (raydir.x < 0)
step->x = -1;
else
step->x = 1;
if (raydir.y < 0)
step->y = -1;
else
step->y = 1;
}
void set_side_dist(t_dpoint *side_dist, t_dpoint *tb, t_ipoint pos_i)
{
t_dpoint ray_dir;
t_dpoint pos;
t_dpoint delta_dist;
ray_dir = tb[0];
pos = tb[1];
delta_dist = tb[2];
if (ray_dir.x < 0)
side_dist->x = (pos.x - pos_i.x) * delta_dist.x;
else
side_dist->x = (pos_i.x + 1.0 - pos.x) * delta_dist.x;
if (ray_dir.y < 0)
side_dist->y = (pos.y - pos_i.y) * delta_dist.y;
else
side_dist->y = (pos_i.y + 1.0 - pos.y) * delta_dist.y;
}