toribio

public OnPlayerUpdate(playerid)
{
    new vehicleid;
    if((vehicleid = GetPlayerVehicleID(playerid))
    {
        static trailer[MAX_VEHICLES];
        if(IsTrailerAttachedToVehicle(vehicleid) && !trailer[vehicleid])
        {
            trailer[vehicleid] = GetVehicleTrailer(vehicleid);
        }
        else if(trailer[vehicleid] && GetVehicleModel(trailer[vehicleid]))
        {
            AttachTrailerToVehicle(trailer[vehicleid], vehicleid);
        }
        else if(!GetVehicleModel(trailer[vehicleid]))
        {
            trailer[vehicleid] = 0;
        }
    }
    return 1;
}