Hi Folks --
This list is mostly for teachers, parents and children, and is about the
Etoys part of Squeak. Please use either the Squeak.org or the
opencroquet.org (or one of the other Croquet lists) for these kinds of
issues.
Thank you,
Alan
-------------
At 09:11 PM 5/19/2007, Laurence Rozier wrote:
Hi,
Sorry for the delayed response ... I'm not on a Windows machine at the
moment but have applied available fixes to OpenGL problems which you can
find on the Croquet list. I've not seen the security error you mention.
Laurence
On 5/7/07, Eric Eisaman
<eric.eisaman@gmail.com
> wrote:
- Hello,
-
- You mention Croquet as offering alternatives. I have been trying to
run Croquet on several different computers but always receive the
"Failed to Initiate OpenGL" error however, I recently installed
the latest OpenGL on all my computers. Do you know how to deal with this?
Also, I get a security error saying my Win32 platform has no good source
of entropy. How can I cope with this? If you have any advice I would
greatly appreciate it.
-
- Eric Eisaman
-
- On 4/1/07, Laurence Rozier
<
laurence.rozier@gmail.com> wrote:
- On 3/31/07, Young-Jin Lee
<
youngjin.michael@gmail.com> wrote:
- Hi,
- I am a newbie trying to learn Squeak.
- The squeak book and tutorials says that I need to define a local
- variable using a pipe like below:
- | someMuppet |
- someMuppet := Muppet new.
- someMuppet name: 'Elmo'.
- someMuppet greet.
- But when I tried the same code without defining a local variable
shown
- below, I got the expected results, which makes me wonder when I
should
- define a local variable.
- anotherMuppet := Muppet new.
- anotherMuppet name: 'Gookie Monster'.
- anotherMuppet greet.
- My guess is that I need not define a local variable if my code is
- being executed within a Workspace because all variables such as
- anotherMuppet will have "Workspace" scope.
- On the surface this is correct, but the language has no explicit
notion of "Workspace" scope. If you take a look at the comment
in the Class Workspace you can get a sense of how Workspaces end up with
this and other interesting/useful behavior as a result of having the ide
written in the language. Smalltalk/Squeak is more than the grammar,
it is an environment - the whole is greater than the sum of the parts.
Often we do type source code into text editors as with other languages
but eToys, Connectors, Croquet and other tools offer alternatives.
Depending on what language background you're coming from this may be a
subtle but very liberating observation. You may not need to dig into this
but if it seems interesting to you, as you use different code editing
tools in the environment, try your code above or evaluate the word self.
- Enjoy!
- Laurence
- Can anyone please explain in more detail about variable scopes?
- Thanks in advance.
- Young-Jin Lee
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