Better Source documentation?

[Portalboat]

I know most of C++. For example, I can explain what

    if ( !pMarine || !pMarine->IsAlive() )
    {
        EndAttack();
        return;
    }

    // don't fire underwater
    if ( pMarine->GetWaterLevel() == 3 )
    {
        WeaponSound( EMPTY );

        m_flNextPrimaryAttack = gpGlobals->curtime + 0.5;
        m_flNextSecondaryAttack = gpGlobals->curtime + 0.5;
        return;
    }

those two blocks of code do.
However, Source has so many functions and typedefs specific to the engine, if not the game, so I'm kinda at a loss figuring out various functions in the code. The VDC doesn't have good documentation for program functions, is there a site that lists the functions in a way similar to the GMod Wiki?

[Overv]

Not really. You pretty much need to find everything out by looking through the source code.

[Portalboat]

ugggh
That sucks.