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Langton's ant is a two-dimensional Turing machine with a very simple set of rules but complex emergent behavior. It was invented by Chris Langton in 1986 and runs on a square lattice of black and white cells. The idea has been generalized in several different ways, such as turmites which add more colors and more states. Squares on a plane are colored variously either black or white. One square is arbitrarily identified as the "ant". The ant can travel in any of the four cardinal directions at each step it takes. The "ant" moves according to the rules below: At a white square, turn 90° clockwise, flip the color of the square, move forward one unit. At a black square, turn 90° counter-clockwise, flip the color of the square, move forward one unit. Langton's ant can also be described as a cellular automaton, where the grid is colored black or white and the "ant" square has one of eight different colors assigned to encode the combination of black/white state and the current direction of motion of the ant. v1: Initial commit v2: Changed drawCell to now be one single method, rather than two hard coded ones.
