Got sabertooths in. They start the chase from further than the deer start the running, but they are still visible when they start chasing you, and they run slower than you, as opposed to the deer that run faster than you. If you get caught by a sabertooth, it’ll kill you and cause the game to reset.
I also added a way to get back to the cave, and fixed the day part of the day/night cycle (sunrise/sunset worked, but I typed something wrong and day was night :P).
Onto level design and interactivity!