31 Jul
2007
31 Jul
'07
10:14 p.m.
Hello
In the laser game tutorial by Stephan B Wessels I was intrerested by this code:
directionFor: aSymbol ^ self subclasses detect: [:cls | cls directionSymbol = aSymbol]
The code appears here at the bottom of the page: http://squeak.preeminent.org/tut2007/html/038.html
What I read this code as doing, in this example is: return an symbol object which is a sublass instance varable, if it is the same as aSymbol.
What would happen if more than one subclass object had a match?
Also how else can subclasses detect: be used? It looks very interesting.
Grunt
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