I've added some basic path finding. It's kind of interesting to watch the zombies bounce around between targets. Currently there's no range penalties (effectively meaning there's no reason to move) but soooon.
Now that I have a graph for these entities to traverse, I can start adding things like attack ranges and projectiles. However, I have a feeling I'll be changing how I handle time now that I have space.
Here you can also see the silly attack animation, and blood splatter (a dirty sort of way of giving feedback on the human's health).