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intersect.c
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intersect.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* intersect.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: oexall <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2016/06/16 12:12:40 by oexall #+# #+# */
/* Updated: 2016/06/17 09:09:27 by oexall ### ########.fr */
/* */
/* ************************************************************************** */
#include "wolf3d.h"
int in_bound(int x, int y, t_mapinfo *info)
{
if (x < 0 || y < 0)
return (-1);
if (x > info->width || y > info->lines)
return (-1);
return (0);
}
int is_intersect(t_point *p, t_main *main)
{
int xg;
int yg;
xg = p->x / TILE_SIZE;
yg = p->y / TILE_SIZE;
if (in_bound(xg - 1, yg - 1, &main->map) && main->array[xg - 1][yg - 1] > 0)
return (-1);
if (in_bound(xg, yg - 1, &main->map) && main->array[xg][yg - 1] > 0)
return (-1);
if (in_bound(xg + 1, yg - 1, &main->map) && main->array[xg + 1][yg - 1] > 0)
return (-1);
if (in_bound(xg + 1, yg, &main->map) && main->array[xg + 1][yg] > 0)
return (-1);
if (in_bound(xg + 1, yg + 1, &main->map) && main->array[xg + 1][yg + 1] > 0)
return (-1);
if (in_bound(xg, yg + 1, &main->map) && main->array[xg][yg + 1] > 0)
return (-1);
if (in_bound(xg - 1, yg + 1, &main->map) && main->array[xg - 1][yg + 1] > 0)
return (-1);
if (in_bound(xg - 1, yg, &main->map) && main->array[xg - 1][yg] > 0)
return (-1);
return (0);
}