Chemotaxis is when an organism moves toward or away from a chemical stimulus, like food. Biologists write software using random walks to model and study how very small organisms like bacteria search for food. In this assignment you will create a simulation of organisms moving away from a starting position using a random walk. This assignment is similar in some ways to the ticklish penguin, but is different in that you must create a class to represent the organisms. NOTE: you must use Math.random() for all the random numbers in this assignment. The random() function we used in processing last year is not part of the AP subset.

This assignment will have a Bacteria class

The class Bacteria will have the following members: 3 ints which hold the x and y coordinates of the bacteria position, and the bacteria color. A constructor which initializes the 3 ints void move() which moves the bacteria in a random walk pattern. void show() which draws the bacteria in the correct position

If you have extra time, you might try to have the bacteria move in a "biased random walk" towards some stimulus like a piece of food or the mouse. You can modify your class so the bacteria have a finite lifespan and can reproduce. Your simulation doesn't have to look like mine. Have fun and be creative.