InterpolateServerEntities

void C_BaseEntity::InterpolateServerEntities()
{
    VPROF_BUDGET( "C_BaseEntity::InterpolateServerEntities", VPROF_BUDGETGROUP_INTERPOLATION );

    s_bInterpolate = cl_interpolate.GetBool();

    // Don't interpolate during timedemo playback
    if ( engine->IsPlayingTimeDemo() )
    {
        s_bInterpolate = false;
    }

    // Don't interpolate, either, if we are timing out
    INetChannelInfo *nci = engine->GetNetChannelInfo();
    if ( nci && nci->GetTimeSinceLastReceived() > 0.5f )
    {
        s_bInterpolate = false;
    }

    if ( IsSimulatingOnAlternateTicks() != g_bWasSkipping ||
         IsEngineThreaded() != g_bWasThreaded ||
         cl_interp_threadmodeticks.GetInt() != g_nThreadModeTicks )
    {
        g_bWasSkipping = IsSimulatingOnAlternateTicks();
        g_bWasThreaded = IsEngineThreaded();
        g_nThreadModeTicks = cl_interp_threadmodeticks.GetInt();

        C_BaseEntityIterator iterator;
        C_BaseEntity *pEnt;
        while ( (pEnt = iterator.Next()) != NULL )
        {
            pEnt->Interp_UpdateInterpolationAmounts( pEnt->GetVarMapping() );
        }
    }

    // Enable extrapolation?
    CInterpolationContext context;
    context.SetLastTimeStamp( engine->GetLastTimeStamp() );
    if ( cl_extrapolate.GetBool() && !engine->IsPaused() )
    {
        context.EnableExtrapolation( true );
    }

    // Smoothly interpolate position for server entities.
    ProcessTeleportList();
    ProcessInterpolatedList();
}