
Now has some inheritance etc.  

Text part and code samples not written, wrote this live for the students.  Might be better to give them to code and work on getting them to modify it rather than enter it from scratch.  Perhaps setup a project with everything but the ItpBullet class in and get them to write this from the notes. 

Next worksheet is a minor imporvement on this, just need to clean up the code a little (move bullet creation into Game). 


