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event capture, batched screen updates, wait

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Timothy Falconer

event capture, batched screen updates, wait

Hi all,

Three questions about etoys.

First, is there a way I can capture the event of turning a page in a
book to fire off a script? Specifically:

1. click next to go to page4

2. this fires page4.startTheFun

3. click prev, then click next again

4. fires page4.startTheFun again

Second, when looping within a script, it appears that the screen
updates are batched. If I do "repeat 10 ... forward 10", it looks
the same as if I did "forward 100". Is there a way around this, or
do all screen updates happen on a clock tick.

Last, is there a way to wait a set amount of time, other than rolling
my own "wait" using a variable?

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Bert Freudenberg

Re: event capture, batched screen updates, wait

On Nov 1, 2007, at 6:57 , Timothy Falconer wrote:

> Hi all,
>
> Three questions about etoys.
>
> First, is there a way I can capture the event of turning a page in
> a book to fire off a script? Specifically:
>
> 1. click next to go to page4
>
> 2. this fires page4.startTheFun
>
> 3. click prev, then click next again
>
> 4. fires page4.startTheFun again

Don't know - I'll let others answer this.

> Second, when looping within a script, it appears that the screen
> updates are batched. If I do "repeat 10 ... forward 10", it looks
> the same as if I did "forward 100". Is there a way around this, or
> do all screen updates happen on a clock tick.

Disable the "batchPenTrails" preference. We now changed the default.

> Last, is there a way to wait a set amount of time, other than
> rolling my own "wait" using a variable?

Not in this version of Etoys, no.

- Bert -

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Kim Rose-2

Fwd: event capture, batched screen updates, wait

Scott,

Can your "event theater" help Tim do what he is seeking?

Kim

Begin forwarded message:

> From: Bert Freudenberg <[hidden email]>
> Date: November 1, 2007 3:59:17 AM PDT
> To: Timothy Falconer <[hidden email]>
> Cc: Squeakland list <[hidden email]>
> Subject: Re: [Squeakland] event capture, batched screen updates, wait
>
>
> On Nov 1, 2007, at 6:57 , Timothy Falconer wrote:
>
>> Hi all,
>>
>> Three questions about etoys.
>>
>> First, is there a way I can capture the event of turning a page in
>> a book to fire off a script? Specifically:
>>
>> 1. click next to go to page4
>>
>> 2. this fires page4.startTheFun
>>
>> 3. click prev, then click next again
>>
>> 4. fires page4.startTheFun again
>
> Don't know - I'll let others answer this.
>
>> Second, when looping within a script, it appears that the screen
>> updates are batched. If I do "repeat 10 ... forward 10", it looks
>> the same as if I did "forward 100". Is there a way around this,
>> or do all screen updates happen on a clock tick.
>
> Disable the "batchPenTrails" preference. We now changed the default.
>
>> Last, is there a way to wait a set amount of time, other than
>> rolling my own "wait" using a variable?
>
> Not in this version of Etoys, no.
>
> - Bert -
>
>
>
> _______________________________________________
> Squeakland mailing list
> [hidden email]
> http://squeakland.org/mailman/listinfo/squeakland

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Scott Wallace

Re: event capture, batched screen updates, wait

In reply to this post by Timothy Falconer

Hi, Tim,

If I'm understanding your wish correctly, this might most easily be
accomplished by designating page4's 'startTheFun' script to be run on
"opening".

Probably it's currently marked as "normal", so click on that "normal"
button and select "opening" from the resulting pop-up.

Once you've done that, any time your user "goes to" page4 (e.g. by
hitting the "next" button while on page 3,) the first thing that will
happen after the new page appears is that its startTheFun script will
run.

How closely does that match what you're after?

Cheers,

-- Scott

On Oct 31, 2007, at 10:57 PM, Timothy Falconer wrote:

> ...First, is there a way I can capture the event of turning a page
> in a book to fire off a script? Specifically:
>
> 1. click next to go to page4
>
> 2. this fires page4.startTheFun
>
> 3. click prev, then click next again
>
> 4. fires page4.startTheFun again

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