[Freeciv-Dev] Re: [Patch] Add new START_TURN packet

[Christian Knoke <ChrisK@xxxxxxxx>]

Am Dienstag, 16. Oktober 2001 12:35 schrieb Raimar Falke:

> > I want to introduce a new packet. I will try to explain why such a
> packet is needed for the CMA.
>
> The CMA currently respond to every incoming city_info packet. An
> incoming city_info packet acts as an indicator that the city has
> changed and the CMA has to ensure that the current status of the city
> meets the user set goal. If the city needs adjustement the CMA will
> sent updates to the server and will check the updates city stuatus.
>
> This break badly if in a short time the city changes more than one
> time. In the example savegame Christian has sent me the following
> happens:
> 

[Communication scenarios between server and client snipped]

>
> The general problem continue to exist:
>
> server         player1          player1's CMA      player2
>
>                - change tax
>                  rates
>  - global
>    city refresh
>                                - update to the
>                                  server (1)
>                                                    - move command
> which conquers the city (2) - (3)
>
> It now depends if (1) or (2) arrive before the other. The solution is
> that the CMA doesn't go BOOM if there is a difference between the
> calculated and the real state of the city.

Yes, I think you have to go there. The agents must get somewhat
tolerant of whether their commands are fullfilled by the real
world (=server).

> The start_turn packet even
> so very usefull. 

> The time between before_new_year and start_turn
> can't be used by any agent or player. And all city_infos which will
> be generated between before_new_year and start_turn can be merged
> into one (removes duplicated calculations).

.. and saves some extra communication between CMA and server.

>
> Extra bandwidth used for the start turn packet: 3 bytes.

Hhm. When the new turn starts, the "turn done" button gets active
again, and the timer is set and starts. Are you sure you need
this packet?

>
>       Raimar

Christian

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