[TF2] Arena Late Spawn Fix

Mikusch · **Author**

As of the 08/07/2022 TF2 update, this plugin is not needed anymore!

[TF2] Arena Late Spawn Fix

This plugin fixes an ancient bug that allows players to spawn during a running round in arena mode. It also prevents players from joining a class before joining a team first.

Unlike the Anti-Arena Latespawn plugin by Batfoxkid, this one fixes the bug properly instead of simply slaying the player if they respawn mid-round.

See below for an in-depth explanation of the bug.

Explanation

The game allows players without a class to instantly respawn after joining one. That functionality has not been disabled in arena mode.
The instant respawn can be triggered by joining a team during pre-round without joining a class, then joining the same class twice after the round has started and the minimum respawn time has passed. This will instantly respawn the player.

This could be fixed in game code by Valve adding a check for arena mode in CTFPlayer::ShouldGainInstantSpawn.

Download | Source Code
Requires dhooks2 with detour support (included in SM 1.11)

Zabaniya · 12-29-2021 , 17:44 Re: [TF2] Arena Latespawn Fix

Lovely. It was about time someone properly fixed this ancient bug. The previous methods would often cause issues especially in gamemodes like Freak Fortress 2 whenever plugins tried to spawn the player for X reason. I was thinking to eventually look into this myself but you beat me to it. Great job!

Mikusch · *Last edited by Mikusch; 12-29-2021 at 22:09.*

I've updated the plugin to also prevent spawning on team "unassigned" by choosing a class before joining a team first, which is apparently another common arena bug/exploit.

Mr_panica · 12-30-2021 , 11:07 Re: [TF2] Arena Late Spawn Fix

Quote:

Originally Posted by Zabaniya

The previous methods would often cause issues especially in gamemodes like Freak Fortress 2 whenever plugins tried to spawn the player for X reason.Great job!

Was my plugin causing the same problem?
https://forums.alliedmods.net/showthread.php?p=2722008

Chdata · *Last edited by Chdata; 01-07-2022 at 14:16.*

Both "join_class" and "joinclass" are valid commands btw.

Thank you so much for this plugin!

Mikusch · 01-07-2022 , 16:36 Re: [TF2] Arena Late Spawn Fix

Quote:

Originally Posted by Chdata

Both "join_class" and "joinclass" are valid commands btw.

Thank you so much for this plugin!

Thank you for pointing this out to me, I've updated the plugin accordingly.

Mikusch · 07-08-2022 , 17:39 Re: [TF2] Arena Late Spawn Fix

This isn't needed anymore as of 07/07/2022. Valve properly implemented these fixes into the game. Hurrah!