[Newbies] Making cultural simulations in Squeak with Kedama

[Offray Vladimir Luna Cárdenas]

Hi all :) .

I have sended this message more that 10 days ago and I have no answer 
from the Squeakland mailing list. I'm trying to use Squeak/Kedama for my 
thesis but the time of response in the list makes me wonder if this in 
the right choice considering the few time I have for it and the fact 
that I'm still a beginner with Squeak. So I send the message again to 
this list, hoping for the answer. I hope that this will be the right 
place (you will see also some other previous discussion, about the 
subject, so you can get the context).

-----------------------------

I'm  having problems with Kedama inside Squeak. I don't know if this is 
the proper place to put this concerns but the  issue was discuss in this 
thread, so I thought that it was (please  if this is not the place point 
me in the right direction)

I tried using first the SqueakAtenex.image from the Extremadura project, 
because it's what my students and me used the last semester, but 
remaking the Epidemic example I found that there is a problem with the 
Kedama  menu translation of Kedama in that image. In the english version 
you can see four options in the viewer of the Kedama Turtle: "kedama 
turtle", "scripts", "kedama turtle breed" and "kedama turtle color". In 
the Atenex image you can see four also in that viewer, but one of them 
is repeated ("kedama turtle") and "kedama turtle breed" is absent. It 
seems that "kedama turtle breed" was translated as "tortuga kedama" 
("kedama turtle"), so adding a turtle is possible, but not increasing 
the amount of turtles in a breed (at lest not as is explained in the 
documentation).

So I tried then the Squeak3.8-6665full.image but Kedama is not available 
from the object catalog. Trying to update from server says that no 
updates are available from server and using the Squeak Map I can`t find 
Kedama either. ¿How can I find/install the Kedama if its not available 
in the object catalog of an image?

Then I tried Squeak3.9g-7054.image and Squeak3.9b-7051.image installed 
from squeakland directly (without using any deb repository for Ubuntu) 
and Kedama is there and I can reproduce the Epidemic simulation example, 
but anytime I tried to open a *.pr project I get some error messages 
about "MessageNotUnderstood: SmallInteger>>removeKey:ifAbsent:"
and other one about fonts. I can made the pr files run (after getting a 
lot of that messages with the "Abandon" window), but some of them can't 
run in with the "go" button for example (I need to locate the proper 
scripts and make them ticking).

¿There is a image and changes file with Kedama working out of the box, 
or there is another way to overcome the problems I show you?

I'm obsessed and passionated with Kedama and multiagents systems. My 
master thesis is on collective problem solving and I think that 
Kedama/Squeak is the way to go not only in my classroom with the 
students as I showed in the SqueakFest, but also in my thesis, so if you 
can help me with quick answers, I will be a lot thankful,

Cheers from Colombia,

Offray

Yoshiki Ohshima escribió:
>   Offray,
>
>  
>> ¿Do you think is feasible to implement the same model in Kedama? If
>> yes,     
>
>   My feeling is, yes, it looks feasible.
>
>  
>> ¿Where is the best way to start implementing it?
>>     
>
>   You can drop a Sketch onto a KedamaWorld to "fill" the world with
> turtles.  Then, you create 5 patch variables each of which represents
> a "trait" in your example.  You add properties that is called
> something like "origX" and "origY", and write scripts to save and
> restore the turtles' positions into these.  To cache the traits value,
> turtles should have 5 properties to save the values in the patch
> variables as well (See the example of ForestFire on the web.)
>
>   To initialize the patch variables, the ForestFire example should be
> helpful.  It initializes the map of forest with 1 or 0 value.  In this
> example, the initial values are in the range of 0 to 9 (or 1-10), but
> can be done in a similar manner.
>
>   At each step, the turtles first cache the values in patch variables
> to the own properties.  Then, they move around and compare the values
> in the cache with the values in neighboring patch variables, and
> modify the cached values.  At last, they return to the original
> position, and write back the cached values into the patch variables.
>
>   The modification made to the cached values
> is the core of the program, and it may require some amount of
> tile-scripting, but in principle, this should work.
>
> -- Yoshiki
>
> _______________________________________________
> Squeakland mailing list
> Squeakland at squeakland.org
> http://squeakland.org/mailman/listinfo/squeakland
>
>   



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