[kadet.89]

I'm trying to get CSoundEnvelopeController interface, but I can't find a way to, is there any?

[Powerlord]

It doesn't seem to have an interface. Which isn't a surprise since Valve names its interfaces starting with an I (i.e. ISoundSystem or ISoundEmitterSystemBase)

[donrevan]

Ghetto way for windows:
I'm not 100% sure if gamedata is still up2date..

PHP Code:


// sigscan references to a func that returns the SoundEnvelopeController
static CSoundEnvelopeController *GetSoundController()
{
    // "Invalid starting duration value in env" bellow 2, first function
    META_CONPRINTF("[%s] Getting Soundcontroller - ", g_Monster.GetLogTag());
    DWORD pGetSoundCtrl_Call;
    if(!g_pGameConf->GetMemSig("g_SoundController", (void**)&pGetSoundCtrl_Call))
    {
        META_CONPRINT("Failed\n");
        META_CONPRINTF("[%s] Couldn't find sig: g_SoundController", g_Monster.GetLogTag());
        return NULL;
    }
    int pGetSoundCtrl_Offs;
    if(!g_pGameConf->GetOffset("g_SoundController", &pGetSoundCtrl_Offs))
    {
        META_CONPRINT("Failed\n");
        META_CONPRINTF("[%s] Couldn't find offs: g_SoundController", g_Monster.GetLogTag());
        return NULL;
    }
    META_CONPRINTF("Success\n");

    typedef CSoundEnvelopeController* (*GetSoundCtrler_t)();
    pGetSoundCtrl_Call += pGetSoundCtrl_Offs; // point to call offset E8 >?? ?? ?? ??<
    DWORD dwJmpOffs = *(DWORD*)pGetSoundCtrl_Call;
    GetSoundCtrler_t getSoundController = (GetSoundCtrler_t)(pGetSoundCtrl_Call + 4 + dwJmpOffs);
    return getSoundController();
}

/////// GAMEDATAA
// sigs
"g_SoundController"    // "Invalid starting duration value in enve" the down 2 func , first 8B
{
                "library"    "server"
                "windows"    "\x76\x1B\xE8\x2A\x2A\x2A\x2A\xFF\x36\x8B\xC8\x8B\x10\xFF\x52\x28"
                "linux"     "@_ZL12g_Controller"
 }
// offsets
"g_SoundController"
{
                "windows"    "3"
} 


@Powerlord: it's actually a interface soundenvelope.h

[Powerlord]

Originally Posted by donrevan @Powerlord: it's actually a interface soundenvelope.h

Not in the srcds sense. If it was, you'd have a define with the interface name which you can use from MetaMod Source plugins / SourceMod extensions to grab a pointer to it using GET_V_IFACE_ANY / GET_V_IFACE_CURRENT

[psychonic]

It's an interface. It's not an exposed/public interface.

[kadet.89]

donrevan, thanks for the example, it definitely works, though I always try to avoid such sort of decisions. In this particular case the subroutine is very small, and if the binary is updated it would be difficult to update the gamedata.

[donrevan]

It doesn't really matter if GetSoundCtrler_t is updated or not, it finds a function in the code that is using it. From there you get the CALL offset and figure out where GetSoundCtrler_t is located..

You don't really have any other choice. Though, you could try to re-create what the function does (it is probably just a getter).. If I remember correctly I opted for the first method as I failed to pin down the pointer to the sound controller instance.