Get command before game dll gets it?

devicenull · **Author**

Is this possible?

The mod does:
ConCommand buy( "buy", Buy_f, "Buy stuff" );

And I want to intercept it before the mod sees it..
Tried using SH_ADD_HOOK_MEMFUNC(IServerGameClients, ClientCommand, m_ServerClients, &g_SourceForts, &SourceForts::ClientCommand, false);
and everything else needed for that.. but it didnt work

BAILOPAN · 08-17-2005 , 22:55

You can do this (copied from CS:S DM for hooking say)

Code:

	//more hax - hook say cmd
	ConCommandBase *pCmd = m_ICvar->GetCommands();
	while (pCmd)
	{
		if (pCmd->IsCommand()
			&& (strcmp(pCmd->GetName(), "say") == 0))
			break;
		pCmd = const_cast<ConCommandBase *>(pCmd->GetNext());
	}

	if (pCmd)
	{
		pSayCmd = (ConCommand *)pCmd;
		SH_ADD_HOOK_STATICFUNC(ConCommand, Dispatch, pSayCmd, Say_handler, false);
	} else {
		pSayCmd = NULL;
	}

Just make sure to SH_DECL_HOOK0_void the Dispatch from ConCommand. Also! Don't forget you need to hook SetCommandClient, which sends the last id to use a server command.

So in your handler, you'd do like:

Code:

void BuyDispatch_handler()
{
   //srcds gives index - 1 for some reason
   int index = OmgMyPlugin.GetCommandClient() + 1;
}

BEHOLD, the power of SourceHook!

sslice · 08-17-2005 , 23:35

Yeah, SourceHook is truly awesome.

Mysterious · 06-01-2009 , 06:28 Re: Get command before game dll gets it?

That's exactly what I've been searching for but I can't get it to work.
I bound SourceHook into the EmptyServerPlugin-Template but the server crashed every time when it had to pass the following code:

Code:

ConCommandBase *pCmd = cvar->GetCommands();

I tried several ways to run the code: in the Plugin::Load() function, in a concommand and in the Plugin::ServerActivate() function.

I don't know if it was correct to use the cvar-object which is from the "icvar.h"-file.

It would be kind of you to explain me the whole thing detailed.

With best wishes
Mysterious

Keeper · 06-01-2009 , 08:56 Re: Get command before game dll gets it?

The quickest way for it to crash is if cvar is NULL. Has cvar been defined at that point?

Mysterious · *Last edited by Mysterious; 06-01-2009 at 10:58.*

Oh...
Of course

Stupid mistake. But the plugin templates code was a bit confusing.

Thank you

Another Question:
Now I have got my handler but how can I prevent the execution of the main concommand?

Yours

Mysterious

[EDIT]
Found it:

Code:

RETURN_META(MRES_SUPERCEDE);