First game with graphics, part 3

After an unplanned abscence, finally I'll show you how to control an image on screen with the mouse.

This example is actually very similar to the last one. I added a generous amount of whitespace in order to clearly read each function and each class.

Almost a month!

I can't believe it's been almost a month since my last post. I've been very busy at work lately, and I haven't been able to continue playing around with pygame. But soon enough I'll continue making my first game with graphics. I actually have some code ready, but I have to take some time to comment on it, or else there would be little point in posting it.