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resolve floating point exception when wliding through walls

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hugogogo
2022-04-28 23:42:15 +02:00
parent 9042b373a9
commit 81aef1eab0
7 changed files with 81 additions and 6 deletions
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4
srcs/draw/raycast.c
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@@ -36,13 +36,11 @@ static void wall_length(t_rcast *rcast)
rcast->wall.start.x = rcast->ray_nb;
rcast->wall.end.x = rcast->ray_nb;
// len = sqrt(pow(ray->end.x - ray->start.x, 2) + pow(ray->end.y - ray->start.y, 2));
if (rcast->is_x == 1)
{
len = rcast->next_x - rcast->ray_step_x;
if (rcast->slope_y)
len /= ft_abs(rcast->slope_y);
// len = (double)len * (double)rcast->screen_dist.end.y / (double)rcast->slope_x;
len = rcast->screen_dist * len / (rcast->slope_x);
}
else if (rcast->is_x == 0)
@@ -50,7 +48,6 @@ static void wall_length(t_rcast *rcast)
len = rcast->next_y - rcast->ray_step_y;
if (rcast->slope_x)
len /= ft_abs(rcast->slope_x);
// len = (double)len * (double)rcast->screen_dist.end.y / (double)rcast->slope_y;
len = rcast->screen_dist * len / (rcast->slope_y);
}
rcast->ray_len = ft_abs(len);
@@ -110,7 +107,6 @@ void raycast(t_game *game, t_rcast *rcast)
draw_line(&game->map_img, &ray, 0x00FF00FF);
// tmp end
wall_length(rcast);
wall_height(rcast);
draw_column(game, rcast);