Schoolyard Sim Update (d0cc8cb)

Since the last update (02da14e), I added a new display for children. They appear as faces whose emotions reflect their morale value. They also have little life bars to their right, which display their current health. 

They also go towards the attraction they are using, and only board the attraction once they are close to it.

Next, I plan to work on some sort of interaction between children, like if there are too many children with low morale close together, they get into a fight.

Here’s another video that throws more children into the simulation: http://youtu.be/9v0HTV1mKmM.

Source code: https://github.com/jamiely/schoolyard-sim/tree/9dde29ca398232e54c4d3077d10d868758cece0a