> On 29 Jun 2016, at 10:32, Richmond <[email protected]> wrote:
>
> Can anyone tell me what purpose the terms "nudge" and "until mouse" as in:
>
> move card grc "GraphicObjectName" to the points of Cd grc
> "GraphicObjectPathName" nudge 2 until mouse
>
> serve in SuperTalk?
>
> Richmond.
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Nudge
The nudge keyword is used in conjunction with the move command to specify that
the object identified in objectDescriptor move the number of pixels supplied in
number along the path generated by the move command.
COMMENTS
The following handler moves a ball graphic around a square graphic, moving 5
pixels at a time:
on MoveBall
move cd grc "Ball" to points of cd grc "Square" nudge 5
end MoveBall
SPECIAL CONSIDERATIONS
Note that the larger number is, the faster the object will appear to move.
Until
The until keyword is used to specify that an operation should continue until a
specified condition is met.
Mouse
The mouse function returns the current state of the mouse button, either “up”
or “down.”
COMMENTS
The following handler displays the current location of the mouse until the user
clicks the mouse button:
on ShowLoc
set the lockCursor to true
set the cursor to plus
repeat until the mouse is down
put the mouseLoc
end repeat
set the lockCursor to false
end ShowLoc
SPECIAL CONSIDERATIONS
You can use the mouse function to allow other currently running applications
(processes) to multi-task with SuperCard; in effect, you can start a script
running and then send SuperCard to the background to continue processing the
script.
To do this, you need to get the mouse (or get mouse()) repeatedly within your
script. This would allow you to work with other applications while a script was
running and have the script continue to run in the background. For an example
of how this is used, see the entry for the notify command.
All the best
Terry
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