[odamex-bug-reporter] [Bug 792] New: Bullet puffs do not need 32 bit fixed-point precision

From: odamex-bugtracker@xxxxxxxxxx
To: odamex-bug-reporter@xxxxxxxxxxxxx
Date: Sat, 25 Feb 2012 19:03:59 +0000

http://odamex.net/bugs/show_bug.cgi?id=792

             Bug #: 792
           Summary: Bullet puffs do not need 32 bit fixed-point precision
    Classification: Unclassified
           Product: Odamex
           Version: 0.6-dev
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: trivial
          Priority: P1
         Component: Server & Client
        AssignedTo: odamex-bug-reporter@xxxxxxxxxxxxx
        ReportedBy: grandpachuck187@xxxxxxxxx


Created attachment 342
  --> http://odamex.net/bugs/attachment.cgi?id=342
Patch

Accuracy for bullet and blood puffs is not particularly important at a
resolution greater than 1 map unit.  A great bandwidth savings can be had by
sending bullet puff positions as 16 bit instead of 32 bit fixed-point
coordinates.  The angle the puff is facing is also of no importance and can be
disregarded.  For a super-shotgun blast, the position and angle of bullet puffs
current use 16*20 = 320 bytes.  By not sending the angle and sending the
position as 16 bits instead, a super-shotgun blast would use 6*20 = 120 bytes.

I have attached a patch that implements this.  I feel it can be implemented
better in the future as part of a more robust network serialization scheme that
determines what level of positional accuracy an actor needs based on certain
criteria.

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[odamex-bug-reporter] [Bug 792] New: Bullet puffs do not need 32 bit fixed-point precision

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