Setting the scene
In this chapter, we will create an Agent that will teach itself to move around the environment, avoiding rocks and eating food. We won't explicitly tell it what to do, only reward good behavior (eating the food) and punish bad behavior (eating/bumping into rocks). The Agent will then use this information to work out what to do.
We'll modify the world we created in the previous two chapters, creating a minimal version without the extra foliage and trees. For food, we'll modify the chick prefab we created in the previous chapters—the hunter will become the hunted.
As for the learning Agent, we'll use a new asset—a monster that fits the artistic style:
Figure 10.1 – The monster Agent hunting for food
In Figure 10.1, the monster is chasing a chick (that is, the "food"). There are several rocks randomly distributed in the environment, which the monster must learn to avoid.
We already have...