Fix: Playing Demos With Multiple Maps

[Baker]

[Ranger366]

[szo]

[szo]

[Baker]

Hmmm ... I wish I were more familiar with Hexen 2. I bet that is written to avoid some other commands that only matter when the server is really connected.

Hexen 2 has intermap travel, right? Like the ability to go back and forth between levels. I really should take a look at the save game structure to see what other improvements they did in addition to the ones that you have mentioned. I did an experiment enabling intermap travel in Quake, but that code was a Carmack experiment and the code and mechanics in Hexen 2 would be far more thorough.

[Baker]

[ericw]

Ran in to a weird issue with the cross-map demo support in QS:

Given a mod that sends svc_stufftext messages every frame (yes, it's ugly, but e.g. "honey" does send a "fog" command every frame), the special handling of svc_stufftext commands that enables cross-map demo playback to work also breaks the demo playback speed mechanism. In particular, if the client can't keep up with the rate of demo messages, the demo will play back in slow-motion. This can happen if the client doing playback is a slow computer / has a low host_maxfps, or if the demo was recorded with an unusually high host_maxfps.

for a test case, play a demo from: http://www.quaketastic.com/upload/files ... ney100.zip
for the honey map pack: http://www.quaketastic.com/upload/files ... /honey.zip
on a slow pc that gets signifigantly less than 72fps on honey.bsp, or with host_maxfps lowered (e.g. set to 33).

With QS 0.85.9, the demo will play in slow-motion; with QS 0.85.6 (without the cross-map demo support) or other engines it plays normally.

Admittedly this is a fringe scenario, but it's imo a legitimate bug in the Pa3PyX cross-map demo playback code.

I put in a hacky workaround that only does the waiting if the stufftext contains 'reconnect': https://sourceforge.net/p/quakespasm/code/974/

[Baker]

Watched the entire demo of onetruepurple honey [in Mark V]. Not sure at the moment how this pertains to "reconnect" as it was a demo of a single map???

Did you link the right demo?

[I didn't happen to notice a speed issue, but the demo was so long ...]

Update: Nevermind, I saw your changelog in Quakespasm. The method outlined in the first post of this thread is simple and works fine and has years of testing.

[Spike]

[Baker]

[ericw]

[Baker]