[squeakland] Simple Coin toss program

Steve Thomas sthomas1 at gosargon.com
Wed Oct 12 02:10:25 EDT 2011

I made a Coin Toss
starts with an Etoys challenge for you to build your own coin toss
race. You could ask kids what to run a bunch of races, compare results and
if they noticed anything about the way the coins move.

I also played around with how to help folks find certain tiles on page 2
using Event Theatre. The problem with this approach is it doesn't work when
you switch languages (because it records mouse position)  Would be nice to
have some way to add a "how to find this tile" mechanism, for etoys
challenges and for folks looking at other peoples scripts. Perhaps an
<alt><click> to help show where to find it.

Also on the last page is a visual that you can "scroll" to see the pattern
of heads/tails.  It broke down when I made the playfield length ~10,000 (the
stamped, images re-arranged when I started scrolling.


On Tue, Oct 11, 2011 at 1:02 PM, R.D. Latimer <rdlatimer at gmail.com> wrote:

> Hi- trying to simulate a coin toss.  I'm putting two objects in a holder -
> a circle and a star.
> I created two variables in the Holder, circleCounter and starCounter (one
> for heads, one for tails)
> I assign the cursor of the Holder a random 1 or 2.
> I don't know how to check the position of the cursor.  The simplest way
> would just be:
>  Test if cursor value == 1...
>  but I don't see that as a menu option.
> So I'm trying:
> Test if graphic at cursor == Circle ...  How do I do this - check the value
> of the graphic or item at the cursor in a holder?
> The default value for "Test Holder's graphic at cursor..." is neither the
> circle or the star, how do I insert either of those two
> images into the Test?
> Or can I just test the value of the cursor somehow? (Is it a 1 or a 2)
> By the way, I've done this in Scratch, it seems easier to put together
> initially, but the speed is an issue.
> For alot of 'spins' - like 1000 or more, it may take in terms of minutes to
> finish.  I think Etoys will be faster.
> Also - can I output the results to a data file?  It'd be nice to graph the
> results.
> In Scratch, I put the results into data lists, these can be exported to
> .txt files with a right click on the list.
> Thanks for your help,
> Randy Latimer
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