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[Freeciv-Dev] Re: (PR#3516) Save files to large and redundant

[Freeciv-Dev] Re: (PR#3516) Save files to large and redundant

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To: admerik@xxxxxxxxxxxx
Subject: [Freeciv-Dev] Re: (PR#3516) Save files to large and redundant
From: "Raimar Falke" <rf13@xxxxxxxxxxxxxxxxx>
Date: Wed, 26 Feb 2003 00:03:18 -0800
Reply-to: rt@xxxxxxxxxxxxxx

On Tue, Feb 25, 2003 at 04:38:41PM -0800, Erik Johansson wrote:
> > If the program compresses them anyway, what does it matter?
> To clarify, yes  I am complaining about the uncompressed size..
> If no format change is made, perhaps it is a good idea to change to 
> bzip2, which cuts more than half the size. (or custom pipe filters, 
> which probably would be better)
> I just feel that it is horrendosly big, and as I said redundant. but 
> perhaps I need to answer a couple of questions first 
> * how the diffrent maps that differs (how much)
> * What other lists are to redundant?

AFAIK there is no redundancy in the savegames.

Q: Why are there so many maps? 
A: Each map can only hold 4bit since we use a char in the range 0-9a-f
for the information except terrain which is encoded in another way. We
have to save terrain, specials (16bit), a bit field which player knows
this tile (32 players max -> 32bit). For each player we have to save
the last information this player has from this tile: terrain, special
and how old this information is (needed for shared vision).


 email: rf13@xxxxxxxxxxxxxxxxx
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