Cellular automata, Langton's ant in hexagonal grid. Extension to 7 colors. The colors are modified in a cyclic fashion by the rule: L1,L2,N,U,L2,L1,R2. Where: L2=2Pi/3 (left turn by 120 degrees), L1=Pi/3 (left turn by 60 degrees), N=+0 (no turn), R1=-Pi/3 (right turn by 60 degrees), R2=-2Pi/3 (right turn by 120 degrees), U=+Pi (U-turn). The case of "highway" that shows spiral growth. 24000 iterations.
Created in Matlab R2011b. Colormap - cool(7).
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<span class="int-own-work" lang="en">Own work</span>