Check client mods

[gc8 970]

Hi

I was thinking about making mission to support multiple mods such as unsung for example and I would like to give the multiplayer admin option to select the used mod from mission parameters in the lobby. My question is how do you show information to client who is about to join the server which mods is the mission currently running?

 

I think it would be easy to just kick the client if he's missing mods once joined the game but I would like instead prevent the client from joining the game if he doesn't have required mods.

 

What are the best approaches to do this?

 

thx!

[davidoss 550]

Does the arma launcher not doing this already?

[pierremgi 4737]

11 minutes ago, davidoss said:

Does the arma launcher not doing this already?

No. As far as I tested, your server shows only the number of players as described in the server.cfg, and the Vanilla DLC/extensions.
 Neither the difficulty nor the mods are displayed in the servers page if you don't know how to do this, and that's the question.

[gc8 970]

It would be nice to have command that changes the server name so you can put list of used mods in the string. Or some other way to show the mod list

[Schatten 261]

If you use -serverMod startup parameter, then players can't see mods that server uses, if -mod one -- they can.

[gc8 970]

3 minutes ago, Schatten said:

If you use -serverMod startup parameter, then players can't see mods that server uses, if -mod one -- they can.

 

ok thanks but like I said I'm looking for solution where the mods are selected in the lobby by parameters

[Schatten 261]

@gc8, not sure that it is possible. AFAIK, if mods are listed in mission.sqf, then players who don't have requred mods, will not able to connect to server; if mods are not listed in mission.sqf, then game of players who don't have requred mods, will simply crash.

[gc8 970]

6 minutes ago, Schatten said:

if mods are listed in mission.sqf, then players who don't have requred mods, will not able to connect to server; if mods are not listed in mission.sqf, then game of players who don't have requred mods, will simply crash.

 

Right. Didn't know about the crash though. Maybe there is a way to kick the player before that, those who don't have required mods. Best place to do this would probably in the lobby when mission is about to start

[Schatten 261]

2 minutes ago, gc8 said:

Maybe there is a way to kick the player before that, those who don't have required mods.

Just list required mods in mission.sqf file.

[Mr H. 400]

If you have server keys set up, the launcher will show the required mods and offer players to download them from the workshop. That's not the case for the in-game server browser AFAIK. Anyways with the keys players who do not have the ods won't be able to join in.

[Mr H. 400]

Also ace 3 used to include an option to check mods but I think it's been discontinued. Might also be worth checking cba for such functions 

[gc8 970]

5 minutes ago, Schatten said:

Just list required mods in mission.sqf file.

 

Then there will be long list required mods of which only like one is used.

[gc8 970]

1 minute ago, Mr H. said:

Also ace 3 used to include an option to check mods but I think it's been discontinued. Might also be worth checking cba for such functions 

 

Checking loaded mods it self isn't the problem. It's where to do this check and how to proceed.

[gc8 970]

Does anyone know what scripts are called when player enters MP lobby?

 

[pierremgi 4737]

5 hours ago, gc8 said:

Does anyone know what scripts are called when player enters MP lobby?

 

Yours with:

https://community.bistudio.com/wiki/Arma_3:_Event_Handlers/addMissionEventHandler#PlayerConnected

[gc8 970]

9 minutes ago, pierremgi said:

Yours with:

https://community.bistudio.com/wiki/Arma_3:_Event_Handlers/addMissionEventHandler#PlayerConnected

 

It does sound like that would be called on "connect" but this actually isn't true. It's only called after player starts the mission.

[HazJ 1288]

If you are having a mods parameter then just them let decide? Set default to vanilla. You can check if a user is running mod if you know the mod(s) you want - See configClasses command.

https://community.bistudio.com/wiki/configClasses

These return which mods you have loaded:

https://community.bistudio.com/wiki/configSourceModList

https://community.bistudio.com/wiki/configSourceAddonList

[gc8 970]

Thanks HazJ, interesting commands. This is how I have checked if mod is loaded so far:

 

isModloaded =
{
 params ["_mod"];
 isClass (configfile >> "CfgPatches" >> _mod)
};


if(isServer) then
{
if(!("uns_main" call isModloaded)) then
{
 diag_log "SERVER, NO UNSUNG!";
}
else
{
 diag_log "SERVER, MODS OK";
};
};

 

[HazJ 1288]

You could try messing with:

https://community.bistudio.com/wiki/activateAddons

[pierremgi 4737]

1 hour ago, gc8 said:

 

It does sound like that would be called on "connect" but this actually isn't true. It's only called after player starts the mission.

 

Do you have some proof of that, or it's just a feeling? You can check with:

https://community.bistudio.com/wiki/getClientState

 

[gc8 970]

1 minute ago, pierremgi said:

Do you have some proof of that, or it's just a feeling?

 

Yes tested it

[mrcurry 470]

@gc8

What you're trying to do is essentially issue mission code before the mission is loaded. 

 

The server might be able to do it with JIP clients by leveraging onPlayerConnected and remoteExec but on mission startup is a different story. Maybe remoteExec a hook into the lobby ui to display the message and stop the load. Not sure if the handler for remoteExec calls is running that early though. 

 

This could possibly be implemented in a clientside mod but that sort of defeats the purpose... 

[gc8 970]

45 minutes ago, mrcurry said:

What you're trying to do is essentially issue mission code before the mission is loaded. 

 

Yes this is the problem. I don't think any of the mission code is executed in lobby. Only mission description.ext header and maybe some other stuff is read. So not sure if it's even possible to call mission scripts in lobby

[mrcurry 470]

 

4 minutes ago, gc8 said:

 

Yes this is the problem. I don't think any of the mission code is executed in lobby. Only mission description.ext header and maybe some other stuff is read. So not sure if it's even possible to call mission scripts in lobby

 

I haven't investigated this but have you looked at how onPlayerConnected would react if added through the server's startup command -init, might be worth checking out.

[gc8 970]

1 minute ago, mrcurry said:

I haven't investigated this but have you looked at how onPlayerConnected would react if added through the server's startup command -init, might be worth checking out.

 

I put it in preinit actually to make sure it's set early as possible. Not sure about the -init parameter, never used that