[quake3-bugzilla] [Bug 5849] New: broken snapvector inverts player speed

bugzilla-daemon at icculus.org bugzilla-daemon at icculus.org
Tue Dec 25 15:51:51 EST 2012


           Summary: broken snapvector inverts player speed
           Product: ioquake3
           Version: SVN HEAD
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Platform
        AssignedTo: zakk at icculus.org
        ReportedBy: hk-ioquake3 at sockenbuegeln.de
         QAContact: quake3-bugzilla at icculus.org

Somewhere between rev2019 and rev2025 a bug was introduced that behaves like an
overflow of the player velocity. if a player accelerates above 32767 u/s the
new speed is -32767.
It only happens on _dedicated_ servers.

revisions 2020 is not building for me but the changelog talks about a
snapvector cleanup which fits.
The serverconsole prints:
"ioq3 1.36_SVN2392 linux-i386 Dec 25 2012"
"No SSE support on this machine"

how to reproduce:
Get this map: https://ws.q3df.org/map/gvn2/ and walk on the jumppad marked on
the floor. That pad is set to more than 32k and will throw you either
forward(nobug) or backward(bug).

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