gamevar vol 0 0
gamevar lev 0 0

// out-of-bounds volume/level numbers
gamevar badvol_oob 99 0
gamevar badlev_oob 999 0

// volume/level numbers for which no level is defined
gamevar badvol_nd 3 0
gamevar badlev_nd 32 0

definequote 255 <temp>

onevent EVENT_ENTERLEVEL
    // must fail, since the current player is -1 in this event
    qgetsysstr 255 STR_PLAYERNAME
endevent

onevent EVENT_USESTEROIDS
    getuserdef .volume_number vol
    setuserdef .volume_number badvol_oob  // LunaCON errors here
    qgetsysstr 255 STR_VOLUMENAME  // C-CON errors here
    setuserdef .volume_number vol
endevent

onevent EVENT_USEJETPACK
    getuserdef .volume_number vol
    getuserdef .level_number lev

    setuserdef .volume_number badvol_oob  // LunaCON errors here
    setuserdef .level_number badlev_oob
    qgetsysstr 255 STR_MAPNAME  // C-CON errors here

    setuserdef .volume_number vol
    setuserdef .level_number lev
endevent

onevent EVENT_JUMP
    getuserdef .volume_number vol
    getuserdef .level_number lev

    setuserdef .volume_number badvol_nd
    setuserdef .level_number badlev_nd
    qgetsysstr 255 STR_MAPFILENAME  // LunaCON, C-CON error here

    setuserdef .volume_number vol
    setuserdef .level_number lev
endevent