Ladybug Chase

This was the first app I have created that I really had to think about what was going on with the block code.  I am not sure I could have thought of the process on my own at this point.  Some of the code is certainly not intuitive.  I read through all of the description and I understand most of it, but these two pieces of code are still puzzling to me:

Screen Shot 2014-10-12 at 11.42.28 AM

Screen Shot 2014-10-12 at 11.40.48 AM

 

 

 

 

Why would the Aphid be invisible?  And I understand the updateFrog is supposed to move towards the ladybug but what is atan2?

I need to read a bit more instead of just going through the steps but as it was Homecoming weekend I ran out of time a bit :).

QR Code:

ladybugQR

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Posted on October 12, 2014, in EdTech 534. Bookmark the permalink. Leave a comment.

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