void eb_trace_line(t_data *d, t_pos a, t_pos b, int color)
{
int x;
int y;
if (a.x == b.x && a.y == b.y)
return ;
else if (eb_abs(b.x - a.x) >= eb_abs(b.y - a.y))
{
if (a.x > b.x)
eb_swap_pos(&a, &b);
x = a.x;
while (x <= b.x)
{
y = a.y + ((b.y - a.y) * (x - a.x)) / (b.x - a.x);
eb_put_pixel_to_img(d, x, y, color);
x++;
}
}
else
{
if (a.y > b.y)
eb_swap_pos(&a, &b);
y = a.y;
while (y <= b.y)
{
x = a.x + ((b.x - a.x) * (y - a.y)) / (b.y - a.y);
eb_put_pixel_to_img(d, x, y, color);
y++;
}
}
}
void eb_search_wall(t_data *d, t_pos *pos, double alpha, t_colision *col)
{
int dist;
double x;
double y;
int colision;
dist = 0;
x = (double)pos->x;
y = (double)pos->y;
d->inter_colision = 0;
while ((colision = eb_collision(d, pos)) <= 0)
{
if (d->save[4])
eb_put_pixel_to_img(d, (pos->x * RM) / RA, (pos->y * RM) / RA,
colision == -1 ? 0x23eb67 : 0xFFFFFF);
if (colision < 0)
d->inter_colision = colision;
pos->x = (int)x;
pos->y = (int)y;
x = x + (cos(alpha) * 1);
y = y + (sin(alpha) * 1);
dist += 1;
}
col->face = colision;
col->dist = (double)dist;
}
void eb_clean_map(t_img *img)
{
int x;
int y;
x = 0;
while (x <= WIDTH)
{
y = 0;
while (y <= HEIGHT)
{
eb_put_pixel_to_img(img, x, y, 0x000000);
y++;
}
x++;
}
}
void display_pixel(t_img *img, int x, int y, t_ray *rayon)
{
t_data *d;
t_vector b;
t_vector ray_dir;
int color;
d = data_init();
vector_set(&b, x - (d->win_size_x / 2), y - (d->win_size_y / 2), 0);
vector_set(&ray_dir, b.x - d->cam->x, b.y - d->cam->y, b.z - d->cam->z);
vector_normalize(&ray_dir);
vector_set(rayon->o, d->cam->x, d->cam->y, d->cam->z);
vector_set(rayon->d, ray_dir.x, ray_dir.y, ray_dir.z);
vector_normalize(rayon->d);
color = color_pixel(rayon, 200000, DEPTH);
eb_debug(ft_concat2("couleur du pixel : ", ft_lutohex(color)), 1);
eb_put_pixel_to_img(img, x, y, color);
}
void eb_print_wend(t_data *d, double alpha, int dist, double dist_wall)
{
double height = ((d->dist_screen * (double)HEIGHT) / dist_wall) / 20;
double hipotenus_wall = height / sin(alpha);
double dist_wall_screen = (((double)HEIGHT / 2) / sin(alpha)) - hipotenus_wall;
double dist_floor_screen = dist * dist_wall_screen / dist_wall;
// alpha += d->map->alpha;
double y = (HEIGHT - dist_floor_screen * sin(alpha)) / 2 + HEIGHT / 2;
double x = WIDTH / 2 + dist_floor_screen * cos(alpha);
// x *= -1;
// double d->dist_screen = (WIDTH / 2) / tan((VISION * DEG_TO_RAD) / 2);
// printf("x = %f, y = %f\n", x, y);
x = (x >= WIDTH ? WIDTH : x);
x = x < 0 ? 0 : x;
y = (y >= HEIGHT ? HEIGHT : y);
y = y < 0 ? 0 : y;
eb_put_pixel_to_img(d, (int)x, (int)y, 0x23eb67);
}
