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How can I create a scripting tile in Etoys/Squeak

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Steve Thomas

How can I create a scripting tile in Etoys/Squeak

I am working on learning squeak and want to know how to create a scripting tile for use in Etoys.

Thanks,

Stephen

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K K Subbu

Re: How can I create a scripting tile in Etoys/Squeak

On Monday 14 Feb 2011 2:07:53 am Steve Thomas wrote:
> I am working on learning squeak and want to know how to create a scripting
> tile for use in Etoys.
Bring up Etoys (scripting tool) for a morph by clicking on the 'eye' halo
icon. You will get a flap containing property and command tiles for that morph.
You can drag the "empty script" tile into the world to get an empty scriptor.
Or drag any desired property/command tile from this flap and drop it into the
world and a scriptor will automatically be created around this tile. You may
drop further tiles from Etoys flap into this script to build a sequence of
tiles.

While scripting, you may find it useful to keep "All Scripts" (controls running
of scripts) and "Players" morph (list of morphs with scripts) around.

Also see http://www.squeakland.org/tutorials/

Subbu
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Steve Thomas

Re: How can I create a scripting tile in Etoys/Squeak

Subbu,

Thanks perhaps I should have been clearer in my question, I want to know how to create my own "property/command tile". For example I want to create a new morph to create a number line object. I would like to add a new "category" (ie: like collections for a playfield) for my number line and add property tiles that can be dragged from the viewer into the script.

Stephen

On Sun, Feb 13, 2011 at 8:39 PM, K. K. Subramaniam <kksubbu.ml@gmail.com> wrote:

On Monday 14 Feb 2011 2:07:53 am Steve Thomas wrote:
> I am working on learning squeak and want to know how to create a scripting
> tile for use in Etoys.

Bring up Etoys (scripting tool) for a morph by clicking on the 'eye' halo
icon. You will get a flap containing property and command tiles for that morph.
You can drag the "empty script" tile into the world to get an empty scriptor.
Or drag any desired property/command tile from this flap and drop it into the
world and a scriptor will automatically be created around this tile. You may
drop further tiles from Etoys flap into this script to build a sequence of
tiles.

While scripting, you may find it useful to keep "All Scripts" (controls running
of scripts) and "Players" morph (list of morphs with scripts) around.

Also see http://www.squeakland.org/tutorials/

Subbu

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Steve Thomas

Re: How can I create a scripting tile in Etoys/Squeak

Okay I partially figured this out and was able to add a scripting tile to my own category.

In the class additionsToViewerCategoryFraction I added a "slot" using:

(slot st1 'The quantity of Steve parts' Number readWrite Player getMajorTicks Player setMajorTicks:)

The part I was missing was I had to to Etoys-Scripting Player the getMajorTicks and setMajorTicks Methods.

I also found I can use command instead of slot.

Thanks,

Stephen

On Mon, Feb 14, 2011 at 12:04 AM, Steve Thomas <[hidden email]> wrote:

Subbu,

Thanks perhaps I should have been clearer in my question, I want to know how to create my own "property/command tile". For example I want to create a new morph to create a number line object. I would like to add a new "category" (ie: like collections for a playfield) for my number line and add property tiles that can be dragged from the viewer into the script.

Stephen

On Sun, Feb 13, 2011 at 8:39 PM, K. K. Subramaniam <kksubbu.ml@gmail.com> wrote:

On Monday 14 Feb 2011 2:07:53 am Steve Thomas wrote:
> I am working on learning squeak and want to know how to create a scripting
> tile for use in Etoys.

Bring up Etoys (scripting tool) for a morph by clicking on the 'eye' halo
icon. You will get a flap containing property and command tiles for that morph.
You can drag the "empty script" tile into the world to get an empty scriptor.
Or drag any desired property/command tile from this flap and drop it into the
world and a scriptor will automatically be created around this tile. You may
drop further tiles from Etoys flap into this script to build a sequence of
tiles.

While scripting, you may find it useful to keep "All Scripts" (controls running
of scripts) and "Players" morph (list of morphs with scripts) around.

Also see http://www.squeakland.org/tutorials/

Subbu

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K K Subbu

Re: How can I create a scripting tile in Etoys/Squeak

On Monday 14 Feb 2011 4:49:33 pm Steve Thomas wrote:

> In the class additionsToViewerCategoryFraction I added a "slot" using:
>
> (slot st1 'The quantity of Steve parts' Number readWrite Player
> getMajorTicks Player setMajorTicks:)
>
>
> The part I was missing was I had to to Etoys-Scripting Player the
> getMajorTicks and
> setMajorTicks Methods.
>
> I also found I can use command instead of slot.

slot refers to property values and you need getter methods (for ReadOnly) and
getter/setter for ReadWrite property. command refers to actions. In your
methods, you can access the morph involved in the player using:
self costume renderedMorph

The tricky part is that you have to choose unique names for slots, commands,
getters and setters. This is because Player uses a flat name space for all
slot/command names and methods. This may look simple, but you could have
packages loaded from outside that could introduce name clashes.

BTW, I mistook you for another Steve in my earlier reply. Sorry.

Subbu
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Steve Thomas

Re: How can I create a scripting tile in Etoys/Squeak

On Mon, Feb 14, 2011 at 10:41 PM, K. K. Subramaniam <kksubbu.ml@gmail.com> wrote:

On Monday 14 Feb 2011 4:49:33 pm Steve Thomas wrote:
> In the class additionsToViewerCategoryFraction I added a "slot" using:
>
> (slot st1 'The quantity of Steve parts' Number readWrite Player
> getMajorTicks Player setMajorTicks:)
>
>
> The part I was missing was I had to to Etoys-Scripting Player the
> getMajorTicks and
> setMajorTicks Methods.
>
> I also found I can use command instead of slot.

slot refers to property values and you need getter methods (for ReadOnly) and
getter/setter for ReadWrite property. command refers to actions. In your
methods, you can access the morph involved in the player using:
self costume renderedMorph

The tricky part is that you have to choose unique names for slots, commands,
getters and setters. This is because Player uses a flat name space for all
slot/command names and methods. This may look simple, but you could have
packages loaded from outside that could introduce name clashes.

So do all names have to be unique or the category/name combination?

BTW, I mistook you for another Steve in my earlier reply. Sorry.

There's another?!? ;)

Subbu

Thanks!!!

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Bert Freudenberg

Re: How can I create a scripting tile in Etoys/Squeak

On 15.02.2011, at 04:54, Steve Thomas wrote:

> So do all names have to be unique or the category/name combination?

Selectors (method names) in a class have to be unique. Method categories are only for convenient browsing, they do not affect execution.

- Bert -

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