In Quake I this coould be used to filter messages by priority. id
Software never implemented it for Quake II, it's just a left-over.
Remove it.
The `msg` cvar was exploited in attacks against the client. A malicious
server send a `msg` cvar as stufftext -> it gets saved into the config
-> since it's retrivable over the network through the userinfo stuff
this can be used to track users, etc.
Sometimes, when half-submerged in opaque water (head/camera still
above water), explosions and similar weren't drawn, because
1. The check whether a client gets a message to draw an explosion (etc)
uses the clients origin, not the camera position
2. Apparently the map compiler was buggy and (only in some places!)
didn't correctly mark areas in the PVS/PHS (PHS is for hearing) as
connected even though they should be (when underwater you should be
able to hear things in the region above the water, even if the water
is opaque and you can't see it).
This is an experimental(!) workaround that does a second check with a
higher origin if the first check fails and the client is currently
(considered) under water.
It's totally possible that this breaks other things, I don't know..
By the way, a good place to test this is the first water area in jail1
It seems to return -1 if the leaf is in the void; sometimes it
also seems to happen when you're just close to a wall, maybe due to
(mis)prediction.
ASan complains about this, but in practice it probably can't cause
issues, as the byte left to the mask array (from CM_ClusterPVS() or
CM_ClusterPHS()) will either belong to another global variable or
padding between them. Fixed it anyway.
* `coop` and `deathmatch` were marked as CVAR_LATCH, `singleplayer` was
not. Fix that by adding the flag to `singleplayer`.
* `coop` and `deathmatch` were marked CVAR_SERVERINFO in the server
intitialization code. Mark both of them and `singleplayer` with
CVAR_SERVERINFO as soon as we're initializing them the first time.
Pointed out by @BjossiAlfreds.
Restored original gamemode prioritization to dm > coop > sp, fixed a bug where server start menu did not clear singleplayer cvar, and rewrote how server init manages gamemode cvars
Autosaves are special. The are a byproduct of the level change process.
When loaded they aren't respawning the player at it's last position, the
player is relocated to func_playerstart. Since entities spawn at their
start position, the player may end up in the wrong spot.
One example is train.bsp -> base2.bsp. The platform spawns in upper
position, the player in lower position. The platform comes down and
crushes the player.
Most of these cases work by luck when the client isn't paused during
load, because the world advances a few frames before the player is
spawned. Implement a better fix: Detect if an autosave is loaded (name
is save0 or current) and treat it like a map change, advance the world
by 100 frames. We cant use the `autosave` boolean, because it's in the
game savefile.
Fix suggested by @BjossiAlfreds, closes#711.
Knightmare of KMQ2 requested this as an easy way to support client site
prtocol auto detection.
While here fix the protocol version number in the error string.
When set to `1`, both `deathmatch` and `coop` are forced to `0`.
`maxclients` is forced to `1`. This makes it possible to play single
player campaigns over the dedicated server.
Closes#614.
