[gabuch2]

HUD Display Manager
Left 4 Dead 2 has a hard limit of how many players can display in the HUD at the same time, the real hard limit is 4 (Not counting you) but this is rather buggy. It will always show the first actors of the campaign.

This plugin manipulates the data sent to the clients, displaying its nearest 3 teammates instead. You can see it in action in this video.



ConVars

• sm_l4d2_hud_display_enabled
  • Enables the plugin.
    • Default: 1
• sm_l4d2_hud_display_query_time
  • Determines the time between position checks. Less is smoother, but may lead to increased overhead. 3.0 is my personal recommended value but you can adjust it as needed.
    • Default: 3

Changelog

• 1.0.1
  • Better checks to avoid possible errors when unhooking players and map ending
  • Included an alternative compile option to give support to SendProxy includes with an optional per_player parameter
• 1.0.0
  • Initial Release

Dependencies

• SendProxy Manager with per_player support.
  • This plugin was mostly made and tested extensively with TheByKotik's version in mind. Other versions may theoretically work but intended behavior is not guaranteed!
    
  • I provide Binaries for Left 4 Dead 2 Linux here.

Supported Games

• Left 4 Dead 2

Theoretically can work on Left 4 Dead 1 but it is untested.

Download and Source Code:

Download from AlliedModders:

You need to download the .sp file and compile the plugin yourself as the AlliedModders' forum compiler lacks the necessary includes to provide you with a working binary.

[liquidplasma]

After a bit of testing I've noticed my own HP bar disappears and there's like the other 4 survivors instead.

Rarely I get Invalid timer handle error in logs

Spoiler

L 04/09/2024 - 15:08:54: SourceMod error session started
L 04/09/2024 - 15:08:54: Info (map "c4m1_milltown_a") (file "H:\serb\left4dead2\addons\sourcemod\logs\err ors_20240409.log")
L 04/09/2024 - 15:08:54: [SM] Exception reported: Invalid timer handle 0 (error 4)
L 04/09/2024 - 15:08:54: [SM] Blaming: l4d2_hud_display_manager.smx
L 04/09/2024 - 15:08:54: [SM] Call stack trace:
L 04/09/2024 - 15:08:54: [SM] [0] KillTimer
L 04/09/2024 - 15:08:54: [SM] [1] Line 176, h:\serb\left4dead2\addons\sourcemod\scripting \include\l4d2_hud_display_manager.sp::OnMapEn d
L 04/09/2024 - 15:08:55: Error log file session closed.
L 04/09/2024 - 15:17:50: SourceMod error session started
L 04/09/2024 - 15:17:50: Info (map "c5m1_waterfront") (file "H:\serb\left4dead2\addons\sourcemod\logs\err ors_20240409.log")
L 04/09/2024 - 15:17:50: [SM] Exception reported: Invalid timer handle bd500c77 (error 1)
L 04/09/2024 - 15:17:50: [SM] Blaming: l4d2_hud_display_manager.smx
L 04/09/2024 - 15:17:50: [SM] Call stack trace:
L 04/09/2024 - 15:17:50: [SM] [0] KillTimer
L 04/09/2024 - 15:17:51: [SM] [1] Line 176, h:\serb\left4dead2\addons\sourcemod\scripting \include\l4d2_hud_display_manager.sp::OnMapEn d
L 04/09/2024 - 15:17:53: Error log file session closed.
L 04/09/2024 - 15:25:09: Error log file session closed.
L 04/09/2024 - 16:18:11: SourceMod error session started
L 04/09/2024 - 16:18:11: Info (map "bdp_bunker01") (file "H:\serb\left4dead2\addons\sourcemod\logs\err ors_20240409.log")
L 04/09/2024 - 16:18:11: [SM] Exception reported: Invalid timer handle b5600c96 (error 1)
L 04/09/2024 - 16:18:11: [SM] Blaming: l4d2_hud_display_manager.smx
L 04/09/2024 - 16:18:11: [SM] Call stack trace:
L 04/09/2024 - 16:18:11: [SM] [0] KillTimer
L 04/09/2024 - 16:18:11: [SM] [1] Line 176, h:\serb\left4dead2\addons\sourcemod\scripting \include\l4d2_hud_display_manager.sp::OnMapEn d
L 04/09/2024 - 16:18:13: Error log file session closed.
L 04/09/2024 - 16:471: SourceMod error session started
L 04/09/2024 - 16:471: Info (map "bdp_bunker01") (file "H:\serb\left4dead2\addons\sourcemod\logs\err ors_20240409.log")
L 04/09/2024 - 16:471: [SM] Exception reported: Invalid timer handle a9b010d5 (error 1)
L 04/09/2024 - 16:471: [SM] Blaming: l4d2_hud_display_manager.smx
L 04/09/2024 - 16:471: [SM] Call stack trace:
L 04/09/2024 - 16:471: [SM] [0] KillTimer
L 04/09/2024 - 16:471: [SM] [1] Line 176, h:\serb\left4dead2\addons\sourcemod\scripting \include\l4d2_hud_display_manager.sp::OnMapEn d
L 04/09/2024 - 16:473: Error log file session closed.
L 04/09/2024 - 16:51:15: SourceMod error session started
L 04/09/2024 - 16:51:15: Info (map "c1m1_hotel") (file "H:\serb\left4dead2\addons\sourcemod\logs\err ors_20240409.log")
L 04/09/2024 - 16:51:15: [SM] Exception reported: Invalid timer handle 61500e9d (error 1)
L 04/09/2024 - 16:51:15: [SM] Blaming: l4d2_hud_display_manager.smx
L 04/09/2024 - 16:51:15: [SM] Call stack trace:
L 04/09/2024 - 16:51:15: [SM] [0] KillTimer
L 04/09/2024 - 16:51:15: [SM] [1] Line 176, h:\serb\left4dead2\addons\sourcemod\scripting \include\l4d2_hud_display_manager.sp::OnMapEn d
L 04/09/2024 - 16:51:17: Error log file session closed.

There was one instance where I got Invalid Edict Index

Spoiler

L 04/09/2024 - 14:45:23: Info (map "ch01_jupiter") (file "H:\serb\left4dead2\addons\sourcemod\logs\err ors_20240409.log")
L 04/09/2024 - 14:45:23: [SM] Exception reported: Invalid Edict Index -1
L 04/09/2024 - 14:45:23: [SM] Blaming: l4d2_hud_display_manager.smx
L 04/09/2024 - 14:45:23: [SM] Call stack trace:
L 04/09/2024 - 14:45:23: [SM] [0] SendProxy_UnhookArrayProp
L 04/09/2024 - 14:45:23: [SM] [1] Line 284, h:\serb\left4dead2\addons\sourcemod\scripting \include\l4d2_hud_display_manager.sp::UnhookC lient
L 04/09/2024 - 14:45:23: [SM] [2] Line 84, h:\serb\left4dead2\addons\sourcemod\scripting \include\l4d2_hud_display_manager.sp::OnClien tDisconnect

I'm on windows too if that could be the cause of these errors

[gabuch2]

Originally Posted by liquidplasma After a bit of testing I've noticed my own HP bar disappears and there's like the other 4 survivors instead. Rarely I get Invalid timer handle error in logs Spoiler L 04/09/2024 - 15:08:54: SourceMod error session started L 04/09/2024 - 15:08:54: Info (map "c4m1_milltown_a") (file "H:\serb\left4dead2\addons\sourcemod\logs\err ors_20240409.log") L 04/09/2024 - 15:08:54: [SM] Exception reported: Invalid timer handle 0 (error 4) L 04/09/2024 - 15:08:54: [SM] Blaming: l4d2_hud_display_manager.smx L 04/09/2024 - 15:08:54: [SM] Call stack trace: L 04/09/2024 - 15:08:54: [SM] [0] KillTimer L 04/09/2024 - 15:08:54: [SM] [1] Line 176, h:\serb\left4dead2\addons\sourcemod\scripting \include\l4d2_hud_display_manager.sp::OnMapEn d L 04/09/2024 - 15:08:55: Error log file session closed. L 04/09/2024 - 15:17:50: SourceMod error session started L 04/09/2024 - 15:17:50: Info (map "c5m1_waterfront") (file "H:\serb\left4dead2\addons\sourcemod\logs\err ors_20240409.log") L 04/09/2024 - 15:17:50: [SM] Exception reported: Invalid timer handle bd500c77 (error 1) L 04/09/2024 - 15:17:50: [SM] Blaming: l4d2_hud_display_manager.smx L 04/09/2024 - 15:17:50: [SM] Call stack trace: L 04/09/2024 - 15:17:50: [SM] [0] KillTimer L 04/09/2024 - 15:17:51: [SM] [1] Line 176, h:\serb\left4dead2\addons\sourcemod\scripting \include\l4d2_hud_display_manager.sp::OnMapEn d L 04/09/2024 - 15:17:53: Error log file session closed. L 04/09/2024 - 15:25:09: Error log file session closed. L 04/09/2024 - 16:18:11: SourceMod error session started L 04/09/2024 - 16:18:11: Info (map "bdp_bunker01") (file "H:\serb\left4dead2\addons\sourcemod\logs\err ors_20240409.log") L 04/09/2024 - 16:18:11: [SM] Exception reported: Invalid timer handle b5600c96 (error 1) L 04/09/2024 - 16:18:11: [SM] Blaming: l4d2_hud_display_manager.smx L 04/09/2024 - 16:18:11: [SM] Call stack trace: L 04/09/2024 - 16:18:11: [SM] [0] KillTimer L 04/09/2024 - 16:18:11: [SM] [1] Line 176, h:\serb\left4dead2\addons\sourcemod\scripting \include\l4d2_hud_display_manager.sp::OnMapEn d L 04/09/2024 - 16:18:13: Error log file session closed. L 04/09/2024 - 16:471: SourceMod error session started L 04/09/2024 - 16:471: Info (map "bdp_bunker01") (file "H:\serb\left4dead2\addons\sourcemod\logs\err ors_20240409.log") L 04/09/2024 - 16:471: [SM] Exception reported: Invalid timer handle a9b010d5 (error 1) L 04/09/2024 - 16:471: [SM] Blaming: l4d2_hud_display_manager.smx L 04/09/2024 - 16:471: [SM] Call stack trace: L 04/09/2024 - 16:471: [SM] [0] KillTimer L 04/09/2024 - 16:471: [SM] [1] Line 176, h:\serb\left4dead2\addons\sourcemod\scripting \include\l4d2_hud_display_manager.sp::OnMapEn d L 04/09/2024 - 16:473: Error log file session closed. L 04/09/2024 - 16:51:15: SourceMod error session started L 04/09/2024 - 16:51:15: Info (map "c1m1_hotel") (file "H:\serb\left4dead2\addons\sourcemod\logs\err ors_20240409.log") L 04/09/2024 - 16:51:15: [SM] Exception reported: Invalid timer handle 61500e9d (error 1) L 04/09/2024 - 16:51:15: [SM] Blaming: l4d2_hud_display_manager.smx L 04/09/2024 - 16:51:15: [SM] Call stack trace: L 04/09/2024 - 16:51:15: [SM] [0] KillTimer L 04/09/2024 - 16:51:15: [SM] [1] Line 176, h:\serb\left4dead2\addons\sourcemod\scripting \include\l4d2_hud_display_manager.sp::OnMapEn d L 04/09/2024 - 16:51:17: Error log file session closed. There was one instance where I got Invalid Edict Index Spoiler L 04/09/2024 - 14:45:23: Info (map "ch01_jupiter") (file "H:\serb\left4dead2\addons\sourcemod\logs\err ors_20240409.log") L 04/09/2024 - 14:45:23: [SM] Exception reported: Invalid Edict Index -1 L 04/09/2024 - 14:45:23: [SM] Blaming: l4d2_hud_display_manager.smx L 04/09/2024 - 14:45:23: [SM] Call stack trace: L 04/09/2024 - 14:45:23: [SM] [0] SendProxy_UnhookArrayProp L 04/09/2024 - 14:45:23: [SM] [1] Line 284, h:\serb\left4dead2\addons\sourcemod\scripting \include\l4d2_hud_display_manager.sp::UnhookC lient L 04/09/2024 - 14:45:23: [SM] [2] Line 84, h:\serb\left4dead2\addons\sourcemod\scripting \include\l4d2_hud_display_manager.sp::OnClien tDisconnect I'm on windows too if that could be the cause of these errors

The behavior you're describing is strange, and I think I know the issue. This plugin requires a version of SendProxy version with per_player support (I forgot to state it in the post). Like I said in the OP, I can provide Linux binaries but for Windows there might be a problem since I don't use that platform. SendProxy versions with optional per_player parameter (arthurisdead's) may not be compatible without making a small change, if you're sure you're using one of those make sure to update the plugin and recompile with the PER_PLAYER_OPTIONAL flag set to true.

1.0.1

• Better checks to avoid possible errors when unhooking players and map ending
• Included an alternative compile option to give support to SendProxy includes with an optional per_player parameter

[R4to0.exe]

Originally Posted by gabuch2 Like I said in the OP, I can provide Linux binaries but for Windows there might be a problem since I don't use that platform.

Hello. I am the one who offered compiled Windows binaries for @liquidplasma. They were compiled straight from your repository fork, worked without any extra changes. I did also created signatures for Windows and provided to him.

I've compiled with the following commands:

python ../configure.py --sm-path="../../../sourcemod" --enable-optimize --sdks="l4d2" --mms-path="../../../mmsource" --symbol-files
ambuild

You can probably add these to Github CI to automatically build Windows binaries. I know you can't test on Windows but I think the community can take care of that right?

Here's the signatures in case you want to update in your repo, these worked pretty well for @liquidplasma. I used Ghidra with makesig.py script:

    "left4dead2"
    {
        "Signatures"
        {
            /**
             * Signature for CGameClient::ShouldSendMessages
             * 
             * How to find:
             * - search for "%s overflowed reliable buffer\n"
             * - there will be two matches, it's usually the first one
             * - find a reference to the function at the top
             * - pick the only "CALL FUN_XXXX" that is in the list
             * 
             */
            "CGameClient::ShouldSendMessages"
            {
                "library"    "engine"
                "windows"    "\x55\x8B\xEC\x51\x56\x8B\xF1\x80\xBE\x2A\x2A\x2A\x2A\x00\x74\x2A\x83\x3D\x2A\x2A\x2A\x2A\x00"
            }

            /**
             * Signature for CGameServer::SendClientMessages
             * 
             * How to find:
             *  - search for "SendClientMessages"
             *  - there's 2 matches, it's usually the first one
             *  - to make sure you're in the right method there will be a string called "sv_main.cpp" above "(%s)%s","Networking","SendClientMessages"
             * 
             */
            
            "CGameServer::SendClientMessages"
            {
                "library"    "engine"
                "windows"    "\x55\x8B\xEC\x81\xEC\xB4\x00\x00\x00\xA1\x2A\x2A\x2A\x2A\x53"
            }
            
            /**
             * Signature for SV_ComputeClientPacks
             * 
             * How to find:
             *  - Simply search for "SV_ComputeClientPack", or "sv_packedentities.cpp"
             * 
             */
            "SV_ComputeClientPacks"
            {
                "library"    "engine"
                "windows"    "\x55\x8B\xEC\x83\xEC\x44\xA1\x2A\x2A\x2A\x2A\x53"
            }
        }
    }

[lamthanhphong119]

L 04/23/2024 - 21:27:00: SourceMod error session started
L 04/23/2024 - 21:27:00: Info (map "c8m1_apartment") (file "D:\SteamLibrary\steamapps\common\Left 4 Dead 2\left4dead2\addons\sourcemod\logs\errors_202 40423.log")
L 04/23/2024 - 21:27:00: [SM] Unable to load extension "sendproxy.ext": The specified module could not be found.
Can you share sendproxy.ext?

[gabuch2]

Originally Posted by R4to0.exe Hello. I am the one who offered compiled Windows binaries for @liquidplasma. They were compiled straight from your repository fork, worked without any extra changes. I did also created signatures for Windows and provided to him. I've compiled with the following commands: python ../configure.py --sm-path="../../../sourcemod" --enable-optimize --sdks="l4d2" --mms-path="../../../mmsource" --symbol-files ambuild You can probably add these to Github CI to automatically build Windows binaries. I know you can't test on Windows but I think the community can take care of that right? Here's the signatures in case you want to update in your repo, these worked pretty well for @liquidplasma. I used Ghidra with makesig.py script: "left4dead2" { "Signatures" { /** * Signature for CGameClient::ShouldSendMessages * * How to find: * - search for "%s overflowed reliable buffer\n" * - there will be two matches, it's usually the first one * - find a reference to the function at the top * - pick the only "CALL FUN_XXXX" that is in the list * */ "CGameClient::ShouldSendMessages" { "library" "engine" "windows" "\x55\x8B\xEC\x51\x56\x8B\xF1\x80\xBE\x2A\x2A\x2A\x2A\x00\x74\x2A\x83\x3D\x2A\x2A\x2A\x2A\x00" } /** * Signature for CGameServer::SendClientMessages * * How to find: * - search for "SendClientMessages" * - there's 2 matches, it's usually the first one * - to make sure you're in the right method there will be a string called "sv_main.cpp" above "(%s)%s","Networking","SendClientMessages" * */ "CGameServer::SendClientMessages" { "library" "engine" "windows" "\x55\x8B\xEC\x81\xEC\xB4\x00\x00\x00\xA1\x2A\x2A\x2A\x2A\x53" } /** * Signature for SV_ComputeClientPacks * * How to find: * - Simply search for "SV_ComputeClientPack", or "sv_packedentities.cpp" * */ "SV_ComputeClientPacks" { "library" "engine" "windows" "\x55\x8B\xEC\x83\xEC\x44\xA1\x2A\x2A\x2A\x2A\x53" } } }

This is neat, a pull request or just providing the GitHub action/signatures would be greatly appreciated but it's fine if you're unable to, I'll try to see what I can come up with.

[Edison1318]

It sucks there's no l4d2 send proxy build version for windows, was willing to use this for my 8 survivors game. Unless I know how to build it myself but I'm new to it.

[Superloft]

Nice plugin! Gonna try to compile Send Proxy for windows and see if it works out.

Unrelated, but which plugins are used to add custom characters in the video? Maybe it's a modified AdaWong plugin but I'm not sure.

EDIT: I tried creating a workflow. I gave up but I finally compiled it. Although I only tested on an older version, and HUD Display Manager doesn't work for me(maybe it's because my ver is old?). Maybe somebody can try.

Github Repo

[Kanashimi]

Originally Posted by Superloft Nice plugin! Gonna try to compile Send Proxy for windows and see if it works out. Unrelated, but which plugins are used to add custom characters in the video? Maybe it's a modified AdaWong plugin but I'm not sure. EDIT: I tried creating a workflow. I gave up but I finally compiled it. Although I only tested on an older version, and HUD Display Manager doesn't work for me(maybe it's because my ver is old?). Maybe somebody can try. Github Repo

Hey, I noticed you put your Repo as archived and you stated to use jensewe fork instead. But, jensewe fork doesn't have a complied DLL. How can I compile it (I'm new on this type of stuff) or can you?

[KadabraZz]

I'm using Debian12, and this damn error haunts me, does anyone know how to solve it? "GLIBC_2.34"
Some ext needs it updated some needs older versions...
Mine is (Debian GLIBC 2.36-9+deb12u 2.36, if i downgrade that other ext will stop working

[15] <FAILED> file "sendproxy.ext.2.l4d2.so": /lib/i386-linux-gnu/libc.so.6: version `GLIBC_2.34' not found (required by /home/container/left4dead2/addons/sourcemod/extensions/sendproxy.ext.2.l4d2.so)