[Calisthenics]

Apply the same logic in dialog response.

pawn Код:

new counter;

for (new StadiumID = 1; StadiumID < MAX_STADIUMS; StadiumID++)
{
    if (AStadium[StadiumID][PickupID] != 0) 
    {
        if (counter++ == listitem)
        {
            format(String, sizeof(String), "You're next to %s stadium", AStadium[StadiumID][StadiumLocation]);
            SendClientMessage(..);

            break;
        }
    }
}

For your information, array indexes start from 0.