[samgreen]

pawn Код:

// samgreen: I believe it is dcmd practice to name this variable params
dcmd_tow(playerid, params[]) {
    // If you use zcmd you will not have to suppress this warning.
    #pragma unused params

    new VID = GetPlayerVehicleID(playerid);
    if(GetVehicleModel(VID) != 525) return  SendClientMessage(playerid, COLOR_RED,"You have to be in a tow truck");
    if(GetPlayerState(playerid) != PLAYER_STATE_DRIVER) return SendClientMessage(playerid, COLOR_RED,"You have to be the driver to tow a car.");
    new Float:vX,Float:vY,Float:vZ;
    for(new c = 0; c < MAX_VEHICLES; c++)
    {
        GetVehiclePos(c, vX, vY, vZ);
        if(IsPlayerInRangeOfPoint(playerid, 20.0, vX, vY, vZ) && c != VID)
        {
                AttachTrailerToVehicle(c, VID);
                SendClientMessage(playerid, COLOR_RED,"You have succesfully attached a vehicle!");
                break;
        }
    }
}

Now try this code and explain to us exactly how it is not working? Is it not attaching the vehicles? Are you getting any status messages?