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Fix a sector[-1] access when starting to draw a wall in an empty map.

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git-svn-id: https://svn.eduke32.com/eduke32@2305 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2012-02-01 21:51:26 +00:00
parent 39509680b6
commit 20741efd3b
1 changed files with 3 additions and 3 deletions
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6
polymer/eduke32/build/src/build.c
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@ -3090,14 +3090,14 @@ void overheadeditor(void)
} }
i = numwalls-1; i = numwalls-1;
j = numsectors-1; j = numsectors-1; // might be -1 if empty map!
if (newnumwalls >= 0) if (newnumwalls >= 0)
i = newnumwalls-1; i = newnumwalls-1;
for (; i>=0; i--) for (; i>=0; i--)
{ {
const walltype *wal = &wall[i]; const walltype *wal = &wall[i];
if (sector[j].wallptr > i) if (j>=0 && sector[j].wallptr > i)
j--; j--;
if (zoom < 768 && !(wal->cstat & (1<<14))) if (zoom < 768 && !(wal->cstat & (1<<14)))
@ -3115,7 +3115,7 @@ void overheadeditor(void)
dax = (wal->x+wall[wal->point2].x)>>1; dax = (wal->x+wall[wal->point2].x)>>1;
day = (wal->y+wall[wal->point2].y)>>1; day = (wal->y+wall[wal->point2].y)>>1;
drawsmallabel(dabuffer, editorcolors[0], editorcolors[31], drawsmallabel(dabuffer, editorcolors[0], editorcolors[31],
dax, day, getflorzofslope(j, dax,day)); dax, day, (i >= numwalls || j<0) ? 0 : getflorzofslope(j, dax,day));
} }
} }