Proper Visible Checks

BOOL IsVisible(APawn *Target, FVector *start, FVector *end, BOOL *bOutIsLeaning)
{    
    BOOL bFence = FALSE;
    BOOL bNullObject = FALSE;
    BOOL bLeaning = FALSE;
    APawn *RetPawn;

    if(g_pPC != NULL && Target != NULL && start != NULL && end != NULL)
    {
        RetPawn    = (APawn *)g_pPC->Trace(*end, *start, 1, vExtent, 0, &HitLocation1, &HitNormal, &HitInfo1);

        if(HitInfo1.Material != NULL)
        {
            if(strstr(HitInfo1.Material->GetFullName(), "Fence"))
            {
                RetPawn    = (APawn *)Target->Trace(*start, *end, 1, vExtent, 0, &HitLocation2, &HitNormal, &HitInfo2);

                if(HitInfo2.Material != NULL)
                {
                    if(strstr(HitInfo2.Material->GetFullName(), "Fence")) 
                    {
                        if(!strcmp(HitInfo2.Material->GetFullName(), HitInfo1.Material->GetFullName()))
                            bFence = TRUE;
                    }
                }
            }
        }

        if(HitInfo1.Material == NULL)
        {
            if(RetPawn != NULL && !RetPawn->IsA(AVehicle::StaticClass()))
            {
                RetPawn    = (APawn *)Target->Trace(*start, *end, 1, vExtent, 0, &HitLocation2, &HitNormal, &HitInfo2);

                if(HitInfo2.Material == NULL) 
                    bNullObject = TRUE;    
            }

            if(RetPawn != NULL)
            {
                if(Target->IsA(AcAPBPawn::StaticClass()))
                {
                    AcAPBPawn *APBPawn = (AcAPBPawn *)Target;

                    if(APBPawn->m_VehicleUseData.m_bLeaningOut)
                    {
                        *bOutIsLeaning = TRUE;
                        bLeaning = TRUE;
                    }
                }
            }
            
        }
        
        

        return (Target == RetPawn || bNullObject || bFence || bLeaning);
    }

    return 0;
}