COMBOTDM

case COMBOTDM:
    {
        int pos = (ri->d[0])/10000;
        int sc = (ri->d[2]/10000);
        int m = (ri->d[1]/10000)-1;
        //int m = zc_max((ri->d[1]/10000)-1,0); //2.50.1 had this.
    bool err_input_found;

    if ( m < 0 || m >= map_count ) {
        al_trace("Invalid Map Reference Passed to Game->GetComboType: \n %d", m);
        err_input_found = true;
    }

    if ( sc < 0 || sc >= MAPSCRS )
    {
        al_trace("Invalid Screen Reference Passed to Screen->GetComboType: \n %d", sc);
        err_input_found = true;
    }

    if ( pos < 0 || pos > 175 )
    {
        al_trace("Invalid Position Reference Passed to Screen->GetComboype: \n %d", pos);
        err_input_found = true;
    }

    if ( err_input_found ) {
        ret = -10000;
    }

    else
    {
            long scr = m*MAPSCRS+sc;
        //long scr = zc_max(m*MAPSCRS+sc,0); //2.50.1 had this.
            int layr = whichlayer(scr);
            if(scr==(currmap*MAPSCRS+currscr))
                ret=combobuf[tmpscr->data[pos]].type*10000;
            else if(layr>-1)
                ret=combobuf[tmpscr2[layr].data[pos]].type*10000;
            else ret=combobuf[
                             TheMaps[scr].data[pos]].type*10000;
    }

    }
    break;