[squeakland] Can a Morph / (etoys player) follow a connector path ?

[karl ramberg]

Thank you for all your work.

Etoys are quite amazing in the amount of possibilities.
One hard part is to match Etoys abilities to the project at hand.
I often have to remake a project several times to get it right.
Etoys have a steep learning curve and not always forgiving.
But we are working on it :-)

And as you say, Etoys are hard to outgrow.

Karl

On Sun, Mar 18, 2012 at 2:23 PM, Harness, Kathleen <kharness at illinois.edu>wrote:

>  Hi Karl,
> First, thanks for all your work you making this new release!
>
> Thanks for the example project idea. It is very nice. One of the things
> that first interested me in Etoys was that it would carry ideas in many
> ways and would be difficult for children to outgrow. Whenever I see expert
> examples, I realize again how deep it is and how fine.
> Regards,
> Kathleen
>  ------------------------------
> *From:* squeakland-bounces at squeakland.org [
> squeakland-bounces at squeakland.org] on behalf of karl ramberg [
> karlramberg at gmail.com]
> *Sent:* Sunday, March 18, 2012 7:35 AM
> *To:* Steve Thomas
> *Cc:* squeakland at squeakland.org
> *Subject:* Re: [squeakland] Can a Morph / (etoys player) follow a
> connector path ?
>
>  I made a version of this here
> http://squeakland.org/showcase/project.jsp?id=11816
>
>  Click in the green playfields to create markers.
>
>  Start the plane with the Go button
>
>  Karl
>
> On Fri, Mar 16, 2012 at 10:24 PM, Steve Thomas <sthomas1 at gosargon.com>wrote:
>
>> Mike,
>>
>>  No high level method I know of to track a connector. But there are many
>> wonderful things inside Etoys which I have not yet discovered.
>>
>>  So lets break down the game a bit.  You have to detect clicking on a
>> particular plane (this can be done setting a script for each plane to
>> execute on a mouse down event).
>> Then you have to "draw a path to the target" and that path is not always
>> a straight line.
>> And you have to make sure the plane you clicked follows the path you drew
>> for it, not another planes path (assuming you are making a multi-plane
>> game).
>>
>>  Well lets start simple with a single plane version.
>>
>>  First let's assume only a plane and target.  When you click on the
>> plane you can get a script to execute by setting the scripts "when to run"
>> to "Mouse down" (in the script editor, click on normal and you will get a
>> list of options).
>> [image: Inline image 1]
>>
>>  Now once you click on the script you would need to start "drawing the
>> path"
>> One way to do this would be to create a copy of a "marker" (pick any
>> object you want to use as your marker) and have it follow your mouse
>> movements.  For the script below I created my plane on the page of a book
>> (I like doing this as I can duplicate pages for different versions as I
>> play and explore).  The script below was started with the "mouse down" on
>> the plane from the script above.
>>
>>  [image: Inline image 2]
>>
>>  Then when you click again you would want to stop the marker from
>> following the mouse.
>> [image: Inline image 3]
>>
>>  Now of course you would need to create copies of these markers and keep
>> track of them for each plane (a holder would be a good way to keep track of
>> them). And to show the path you could use connectors connecting your plane
>> to the markers.
>>
>>  There are a number of more "advanced" Etoys features you would need to
>> use but if you can play around with the above and want to go further,
>> please send more questions to the list and we'll be glad to help.
>>
>>  Stephen
>>
>>  On Fri, Mar 16, 2012 at 1:09 PM, Mike Stramba <mikestramba at gmail.com>wrote:
>>
>>> I'd like to do something similar to this game in Squeak / Etoys
>>>
>>> http://www.gamenet.com/game/air-traffic-chief/
>>>
>>> I.e. using a connector, having the motion of a morph follow that
>>> connector, as the connector is moved while the morph is moving.
>>>
>>> I see the demos in Etoys of   a "car following a road", but they seem
>>> to be tracking a particular color, and continually turning left or
>>> right (which is ya, basically what any path finding program is gonna
>>> have to do internally, I guess).
>>>
>>> Wondering if there is a "high level"  / class  / etoys .. method etc,
>>> to track a connector
>>>
>>> Mike
>>> _______________________________________________
>>> squeakland mailing list
>>> squeakland at squeakland.org
>>> http://lists.squeakland.org/mailman/listinfo/squeakland
>>>
>>
>>
>> _______________________________________________
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>> squeakland at squeakland.org
>> http://lists.squeakland.org/mailman/listinfo/squeakland
>>
>>
>
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