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MacWorld 1997 February
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Macworld (1997-02).dmg
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Apple Cocoa
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Cocoa Frequently Asked Question
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1996-11-11
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Here are some Frequently Asked Questions about Cocoa. If you
can't find an answer to your question in this list, send it in
to feedback and we'll try to give you a hand. We may even add
your question to a future edition of the FAQ.
---------------------------------------------------------------
" I deleted my character by mistake. I spent a lot
of time making rules for it. Is there any way that I
can get it back?
There are three ways to get it back:
1. Run the clock backwards (using the "<<" button
on the control panel), and back up to a time
before the character was deleted.
2. In the "Piece" menu, select "Show Types".
Whenever you create a new kind of piece, a copy
of it is saved in the "Types" window. You can
drag any object in the "Types" window onto the
Board.
3. If you were lucky enough to save your world
before deleting the Piece, you can go back to
that saved world. First, Quit Cocoa. When it
asks if you want to save changes, say "No".
Then double-click on the saved world to start
it again. You will get the old version, before
the Piece was deleted.
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" I'm trying to create a new rule. I clicked on the
"Movie Camera", and dropped it on my character. But
now, whenever I try to move the character, it just
makes a "boing" sound and won't move.?"
You have to make the "spotlight" bigger, so that it
includes the square you are going to move into. You
will see 4 "handles" around your character. Grab one
of those handles and drag it to make the spotlight
bigger.
---------------------------------------------------------------
" I closed the Control Panel and now I can't get it
back. What should I do?"
Under the "Window" menu, select "Show Controls".
---------------------------------------------------------------
" I'm using Variables in my Piece. It's frustrating
that I can't look at the both the Variables and the
Rules at the same time. Is there a way to see both
of them at the same time?"
Grab the dark black line between the "Rules" and
"Variables" and drag it to the middle of the window.
---------------------------------------------------------------
"My character was doing all sorts of things, but now
it doesn't move at all. What happened?"
One possibility is that you accidentally made a rule
that does nothing. Double-click on the piece so that
you can see its list of rules. Look at the very
first rule in the list. If it is a rule with just a
single square before and after the arrow, that's
probably the problem. To delete the rule, click on
the Vacuum Cleaner (at the right end of the Control
Panel) and then drop the Vacuum Cleaner on the rule.
© 1996, Apple Computer, Inc.