A downloadable project

The entities in this environment are: 

Sheeps - eat grass and reproduce; 

Rabbits - eat grass/vegetables and reproduce; 

Wolves - eat sheeps and rabbits and reproduce; 

Plague - it has a small chance of showing up and eating all the grass and vegetables. 

The entities increase with the amount of food. The player has to kill the wolves and the rabbits to increase the number of sheeps. Develeoped in Processing (Java).