
Regarding mob behavior

Mobs have a number of defined states; each of these states has an associated
behavior and a duration.

state = behavior duration

| behavior          | meaning |
|-------------------|---------|
| idle              | does nothing except play an animation |
| wander            | moves around aimlessly |
| target            | acquires a target; arguments might be used to define what the target is |
| approach          | move towards target |
| escape            | move away from target |
