noisytoot/notnotdnethack
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Merge pull request #1177 from gebulmer/fix/direction-selection

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Prevent overflow in setting directions at start
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Chris-plus-alphanumericgibberish 2020-09-12 14:15:55 -04:00 • committed by GitHub
commit a20c705af2
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1 changed files with 2 additions and 1 deletions

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src/cmd.c
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@ -6353,7 +6353,8 @@ char sym;
if(iflags.num_pad) sdp = ndir; else sdp = sdir; /* DICE workaround */
u.dz = 0;
if(!(dp = index(sdp, sym))) return 0;
/* sym defaults to null at game start, causing dp - sdp to be 10, overflowing */
if(!sym || !(dp = index(sdp, sym))) return 0;
u.dx = xdir[dp-sdp];
u.dy = ydir[dp-sdp];
u.dz = zdir[dp-sdp];