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Fix drawbridge checking outside map

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This commit is contained in:
Pasi Kallinen
2024-04-26 07:59:42 +03:00
parent ec99383b81
commit 26c8cbc931
1 changed files with 8 additions and 6 deletions
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14
src/dbridge.c
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@@ -131,28 +131,30 @@ db_under_typ(int mask)
* We want to know whether a wall (or a door) is the portcullis (passageway)
* of an eventual drawbridge.
*
* Return value: the direction of the drawbridge.
* Return value: the direction of the drawbridge, or -1 if not valid
*/
int
is_drawbridge_wall(coordxy x, coordxy y)
{
struct rm *lev;
if (!isok(x, y))
return -1;
lev = &levl[x][y];
if (lev->typ != DOOR && lev->typ != DBWALL)
return -1;
if (IS_DRAWBRIDGE(levl[x + 1][y].typ)
if (isok(x + 1, y) && IS_DRAWBRIDGE(levl[x + 1][y].typ)
&& (levl[x + 1][y].drawbridgemask & DB_DIR) == DB_WEST)
return DB_WEST;
if (IS_DRAWBRIDGE(levl[x - 1][y].typ)
if (isok(x - 1, y) && IS_DRAWBRIDGE(levl[x - 1][y].typ)
&& (levl[x - 1][y].drawbridgemask & DB_DIR) == DB_EAST)
return DB_EAST;
if (IS_DRAWBRIDGE(levl[x][y - 1].typ)
if (isok(x, y - 1) && IS_DRAWBRIDGE(levl[x][y - 1].typ)
&& (levl[x][y - 1].drawbridgemask & DB_DIR) == DB_SOUTH)
return DB_SOUTH;
if (IS_DRAWBRIDGE(levl[x][y + 1].typ)
if (isok(x, y + 1) && IS_DRAWBRIDGE(levl[x][y + 1].typ)
&& (levl[x][y + 1].drawbridgemask & DB_DIR) == DB_NORTH)
return DB_NORTH;