[Freeciv-Dev] Re: (PR#2464) patch: restrict techs by nation

["Per I. Mathisen via RT" <rt@xxxxxxxxxxxxxx>]

On Mon, 2 Dec 2002, Raimar Falke via RT wrote:
> > I don't see any advantages of this over my code. To the contrary, it looks
> > much more complicated, both in terms of code and ruleset author
> > understanding. The readability of such a tech.ruleset will be very hard.
>
> It _may_ require more code but I think that the effect is that the
> ruleset will become easier. You only have to add "Root" to the root
> techs. Finished. In your proposal the information is duplicated (in
> the requirements and in the allowed nations). And the code can
> calculate the one from the other.

The total number of characters that are necessary to be added to the
ruleset will be fewer, yes. But it will be much harder to visualise what
the resulting changes will be since you cannot just look at one tech and
figure out who can use it.

> > Also you lose the possibility of merging two disjointed trees at a
> > higher stage or have some shared techs in two mostly disjointed tech
> > trees.
>
> IMHO this is overkill. I could "no modpack author ever will want this"
> but this would be to much. Lets say "all current modpack authors will
> be satisfied with my proposal".

Well, I'm not, for one.

Not-quite-disjointed tech trees offer interesting possibilities. But the
most important thing is that your model does not allow several players to
share one branch of a disjointed tech tree.

You said:
> a player can only get a tech by any way (huts, advance, diplomat,
> diplomacy, ...) if the root of the tech is the same as the root of
> the player

One side: Angmar and Mordor
One side: Moria and Iron Mountains

Each side has its own tech tree where most techs are put. However, there
are a very few common techs in addition, that form the root of both trees.
(This is actually the case with the current modpack made by Bart!)

Now, in your scheme, Angmar and Mordor, and Moria and Iron Mountains, once
they have exhausted the few common techs, cannot share techs and cannot
find techs in huts.

No, I am too kind - they cannot even reseach these techs!

So the moment you depart from a model of two completely distinct tech
trees, your scheme becomes an additional problem, not a solution.

(Also you didn't say what would happen if a tech has multiple roots...)

  - Per