For the valley2 scenario, the wall count is 106. It should be far less than that.

The world typically lasts only 30-40 turns before all the critters die off. SmartPlantEaters need to implement strategies that will allow the world to go 600 turns without becoming barren.

The simulation needs a test world containing Predators. None of the current test worlds contain predators yet.

It omits the last seven lines of expected output, which should be displayed by sequenceInterface.

Here are the omitted lines:

1
2
100
101
102
103
104

For extra points, make sure that if you call withBoxUnlocked when the box is already unlocked, the box stays unlocked.

There should be a Predator critter type.