Bug 792 – Bullet puffs do not need 32 bit fixed-point precision

Bug 792 - (ARRAY(0x6003bc8)) Bullet puffs do not need 32 bit fixed-point precision

(ARRAY(0x6003bc8))
Summary:	Bullet puffs do not need 32 bit fixed-point precision

Status:	NEW

Product:	Odamex
Classification:	Unclassified
Component:	Server & Client
Version:	(old) 0.6-dev
Hardware:	All All

Importance:	P1 trivial

URL:

Depends on:
Blocks:
	Show dependency tree

Reported:	2012-02-25 19:03:59 CST by Dr. Sean
Modified:	2012-02-25 19:03 CST (History)
CC List:	0 users

See Also:

Attachments
Patch (2.26 KB, patch) 2012-02-25 19:03:59 CST, Dr. Sean	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.

Description Dr. Sean 2012-02-25 19:03:59 CST

Created ﷒0﷓
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.