[hlstriker]

You can get an address using signatures for pointer variables but can you get an address from non-pointer variables?

Here is an example getting the address of the g_pGameRules pointer then calling CCSGameRules::FreezePlayers.

Gamedata:

Spoiler

"Games"
{
	"csgo"
	{
		"Addresses"
		{
			"CCSGameRules"
			{
				"linux"
				{
					"signature"	"GameRules"
				}
			}
		}

		"Signatures"
		{
			"GameRules"
			{
				"library"	"server"
				"linux"		"@g_pGameRules"
			}

			"CCSGameRules::FreezePlayers"
			{
				"library"	"server"
				"linux"		"@_ZN12CCSGameRules13FreezePlayersEv"
			}
		}
		
	}
}

Example plugin:

Spoiler

PHP Code:

FreezePlayers()
{
    static Handle:hCall = INVALID_HANDLE;
    if(hCall == INVALID_HANDLE)
    {
        StartPrepSDKCall(SDKCall_Raw);
        
        if(!PrepSDKCall_SetFromConf(GetGameConfig(), SDKConf_Signature, "CCSGameRules::FreezePlayers"))
            return false;
        
        hCall = EndPrepSDKCall();
        if(hCall == INVALID_HANDLE)
            return false;
    }
    
    SDKCall(hCall, GetAddress_CCSGameRules());
    return true;
}

Address:GetAddress_CCSGameRules()
{
    static Address:addr = Address_Null;
    if(addr == Address_Null)
        addr = GameConfGetAddress(GetGameConfig(), "CCSGameRules");
    
    return addr;
}

Handle:GetGameConfig()
{
    static Handle:hGameConfig = INVALID_HANDLE;
    if(hGameConfig == INVALID_HANDLE)
        hGameConfig = LoadGameConfigFile("some_file");
    
    return hGameConfig;
} 


As you can see this works perfectly fine because g_pGameRules is a pointer. What if instead we had the signature to a variable called g_GameRules which was the object itself? Is there any method available to us to get the address of said object so we can still call its member functions?

[psychonic]

The above isn't bad as an example, but unnecessary due to there already being a SDKCall_GameRules call type, not requiring SDKCall_Raw.

As for the actual question, can you say more specifically what exact function you're wanting to call?

[hlstriker]

Yeah the above was just an example to help explain what I'm trying to do.

My goal is to call:
bool CPlayerVoiceListener::IsPlayerSpeaking( int nPlayerIndex )

Looking at player_voice_listener.cpp you can see there is g_PlayerVoiceListener which I would like the address of.

[psychonic]

In this case, you might not be able to do everything from a SourceMod plugin. If using an extension, it would be easiest and not require gamedata to just lookup the corresponding vscript function in the scriptdesc at the top of the file and call that.

You could try calling PlayerVoiceListener() itself to get the ptr, but I'm not sure if you can easily get and pass it in SM, and even so, it wouldn't be viable on Windows as finding a unique signature would be near impossible.

Edit: alternatively, use DHooks to hook IServerGameClients::ClientVoice and reimplement the CPlayerVoiceListener logic in a plugin, tracking it exactly as the game does.

[hlstriker]

Alright, I was hoping there would be a method without using a custom extension but the DHooks solution will work fine. Thanks :>