Author: per
Date: Wed Apr 12 16:58:40 2006
New Revision: 60
URL: http://svn.gna.org/viewcvs/warzone?rev=60&view=rev
Log:
When you load a savegame where two (enemy?) units are adjacent(?) to each
other, its
possible to hit a div by zero bug in visibility.c:visibleObject().
Problem occurs when rayCast() calls rayLOSCallback() and the callback exits due
to
(distSq >= tarDist) being true, without ever having executed the following
block that
updates lastD. lastD remains 0 and the divide at the end of visibleObject
throws a
SIGFPE. On any later occasion, the last distance value from the last
calculation will be
reused in this case, which is still bogus but isn't fatal.
The fix is easy, just add "lastD = dist;" before the return in the (distSq >=
tarDist)
case.
Patch by Angus Lees <gus> in bug #5761.
Modified:
trunk/src/visibility.c
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