[etoys-dev] Connect Etoys and Scratch

[Bert Freudenberg]

Actually I like the prefixing. Maybe the prefix should simply be "scratch"? That would make it obvious where the event comes from.

- Bert -


On 25.05.2011, at 05:13, Koji Yokokawa <ky at yengawa.com> wrote:

> Thank you, Stephen.
> 
> I reconsider the naming rule of broadcast events. "broadcast:"+messageName is misleading. I'll remove the "broadcast:". So that the name of custom event name in Etoys is same as the broadcast name in Scratch.
> 
> Dispatching event for each change of variable may be overload for values changing continuously. I think that is better to broadcast "variableName" in Scratch as trigger to update the value in Etoys. It's natural for MVC model in Smalltalk too ;)
> 
> -- Koji
> 
> Steve Thomas wrote 11/05/25 0:57:
>> Totally cool.   By setting that preference, the broadcast:* events are
>> auto-magically populated in the "more ..." section of "when scripts
>> should run" (although you need to broadcast at least once to see the
>> event in the list)
>> 
>> Also another nice touch is that you also have the Scratch variable names
>> as events, so you can trigger a script on change in "score" or any variable.
>> 
>> One possible confusion is that variable "custom events" are not
>> pre-pended with anything, so if you create a variable in Scratch named
>> "normal", you have a custom event called "normal" which could cause
>> confusion.
>> 
>> Stephen
>> 
>> On Tue, May 24, 2011 at 11:36 AM, Bert Freudenberg <bert at freudenbergs.de
>> <mailto:bert at freudenbergs.de>> wrote:
>> 
>>    Ah, that preference is more specific. Even better :)
>> 
>>    - Bert -
>> 
>>    On 24.05.2011, at 17:22, Koji Yokokawa wrote:
>> 
>>     > Yes,
>>     > a broadcast from Scratch will be converted to a custom event in
>>    Etoys.
>>     >
>>     > I forgot that the custom event is not available in default. Open
>>    preferences from menu-halo of the world and search "etoy" to get
>>    "allowEtoyUserCustomEvents" in Etoys.
>>     >
>>     > Koji
>>     >
>>     > Bert Freudenberg wrote 11/05/24 21:10:
>>     >>
>>     >> On 24.05.2011, at 13:57, Steve Thomas wrote:
>>     >>
>>     >>> On Sun, May 22, 2011 at 6:35 AM, Koji Yokokawa<ky at yengawa.com
>>    <mailto:ky at yengawa.com>>  wrote:
>>     >>>> Try to receive messages from Scratch.
>>     >>> Couldn't figure out broadcasting from Scratch to Etoys.  In
>>    Scratch I broadcast "go".  In Etoys I tried a script named "go" and
>>    one named "broadcastgo" but nothing happened in Etoys. One of your
>>    short simple videos would help ;)
>>     >>
>>     >> I guess Koji-san meant to use a custom event to trigger the
>>    script on the ScratchClient. The script name is irrelevant. If you
>>    disable "etoys friendly" you find "define a new custom event" in the
>>    "more..." submenu for the script trigger. That lets you define other
>>    triggers than "mouseDown", "mouseUp" etc. IIUC you need to name it
>>    "broadcast:go".
>>     >>
>>     >> - Bert -
>>     >>
>>     >
>>     > --
>>     > Koji Yokokawa <ky at yengawa.com <mailto:ky at yengawa.com>>
>>     > http://www.yengawa.com/
>> 
>> 
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>> 
>> 
> 
> -- 
> Koji Yokokawa <ky at yengawa.com>
> http://www.yengawa.com/
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