[wouter0100]

pawn Код:

stock GetEmptyVehicleSeat(vehicleid)
{
    new bool:Seat[4];
    for(new i;i<MAX_PLAYERS;i++)
    {
        if(IsPlayerConnected(i))
        {
            if(IsPlayerInVehicle(i,vehicleid))
            {
                if(GetPlayerVehicleSeat(i) == 0) Seat[0] = true;
                if(GetPlayerVehicleSeat(i) == 1) Seat[1] = true;
                if(GetPlayerVehicleSeat(i) == 2) Seat[2] = true;
                if(GetPlayerVehicleSeat(i) == 3) Seat[3] = true;
            }
        }
    }
    for(new a;a<sizeof(Seat);a++)
    {
        if(Seat[a] == false) return a;
    }
    return -1;
}

Returns -1 if there isnt a free seat.