Пожалуйста помогите

[Dragonord]

if( dialogid == L_DIAG && response )
    {
        if ( listitem < MAX_RADIO )
        {
            RadioVeh[GetPlayerVehicleID(playerid)] = listitem;
            for (new i; i <= MaxPlayers ; ++ i) {
                if(!IsPlayerConnected(i) || GetPlayerVehicleID(i) != GetPlayerVehicleID(playerid)) continue;
                 PlayAudioStreamForPlayer(i, Radio [ listitem ] [ 1 ]);
            }
        }
        else if ( listitem >= MAX_RADIO )
        {
            RadioVeh[GetPlayerVehicleID(playerid)] = -1 ;
            for (new i; i <= MaxPlayers ; ++ i) {
                 if(!IsPlayerConnected(i) || GetPlayerVehicleID(i) != GetPlayerVehicleID(playerid)) continue;
                 StopAudioStreamForPlayer(i) ;
            }
        }
        return true ;
    }

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Как сделать через case?
______________________________________________________________ case L_DIAG:
{

        if ( listitem < MAX_RADIO )
        {
            RadioVeh[GetPlayerVehicleID(playerid)] = listitem;
            for (new i; i <= MaxPlayers ; ++ i) {
                if(!IsPlayerConnected(i) || GetPlayerVehicleID(i) != GetPlayerVehicleID(playerid)) continue;
                 PlayAudioStreamForPlayer(i, Radio [ listitem ] [ 1 ]);
            }
        }
        else if ( listitem >= MAX_RADIO )
        {
            RadioVeh[GetPlayerVehicleID(playerid)] = -1 ;
            for (new i; i <= MaxPlayers ; ++ i) {
                 if(!IsPlayerConnected(i) || GetPlayerVehicleID(i) != GetPlayerVehicleID(playerid)) continue;
                 StopAudioStreamForPlayer(i) ;
                 return true;
                 }
            }
        return false;

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НЕ удачный пример выше
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