[Newbies] isStepping question

[Bert Freudenberg]

On 07.11.2009, at 14:18, Christine Wolfe wrote:

> If I have a morph that is stepping through some process I know I can  
> test for whether or not it is still stepping by using the isStepping  
> method.  But, how to I put this into a loop so that the next  
> instruction doesn’t start until the stepping is done.
>
> Here is my mouseDown code.  I want to put something in before the  
> last instruction so it doesn’t execute until isStepping becomes false.
>
> mouseDown: evt
> path := OrderedCollection new.
> 0 to: 9 do: [:i | path add: self position + (0@(10 * i))].
> path := path, path reversed.
> self startStepping.
>
> self owner moveTheGameBall.

Not possible in Morphic (that is one of the major advantages of Tweak).

The canonical way is to test for the end condition in #step. Something  
like

step
	path ifEmpty: [^self stopStepping].
	self position: path removeFirst.
	path ifEmpty: [self owner moveTheGameBall]

- Bert -