diff --git a/host_python/cellular.py b/host_python/cellular.py index 33b2269..0795b3e 100644 --- a/host_python/cellular.py +++ b/host_python/cellular.py @@ -1,6 +1,6 @@ #!/usr/bin/python """ -An elementary 2D celluar autonoma implementation for the ledbar in brmlab. +An elementary 2D celluar automata implementation for the ledbar in brmlab. For some fun rules, try: 30: near-random behavior 22: gives a symmetric triangle pattern. It just looks like splitting cells and gets @@ -14,8 +14,15 @@ but sure more colorful. You can choose between a single pixel or a random starting row. +By setting TOTALISTIC to True and adding proper rules, you get continuous +totalistic 1D celluar automata. The basic rule mostly just fades out and +in again: it looks like triangles on a plane. But tell me if you find some +more interesting rule! +The RULE format for totalistic automta is a dictionaries of functions which get +passed the sum of the above three pixels. The keys are conditions, if one +returns true, the value is executed. (Thus they shouldn't overlap.) + Possible fun stuff: Automatically pick new rules, detect patterns and restart. -Also, implement grayscare totalistic autonoma. """ @@ -26,8 +33,11 @@ from ledbar import Ledbar PIXELS = 20 PIXEL_MODE = ('bw', 'color')[0] -START = ('single', 'random')[0] -RULE = 30 +START = ('single', 'random')[1] +TOTALISTIC = True +#RULE = 30 +RULE = {(lambda t: True): (lambda t: (t+0.9) % 1)} +SLEEP = 25 WIDTH = PIXELS if PIXEL_MODE == 'color': WIDTH *= 3 @@ -36,13 +46,15 @@ def bits(num, align=8): for i in range(align)[::-1]: yield bool(num & (1 << i)) -rules = dict(zip(((1,1,1), (1,1,0), (1,0,1), (1,0,0), (0,1,1), (0,1,0), (0,0,1), (0,0,0)), bits(RULE))) +if not TOTALISTIC: + rules = dict(zip(((1,1,1), (1,1,0), (1,0,1), (1,0,0), (0,1,1), (0,1,0), (0,0,1), (0,0,0)), bits(RULE))) + iteration = [0]*WIDTH if START == 'single': iteration[WIDTH//2] = 1 elif START == 'random': - iteration = list(random.randint(0, 1) for i in iteration) + iteration = list((random.randint(0, 1) if not TOTALISTIC else random.random()) for i in iteration) def iterate(iteration): new = [] @@ -51,7 +63,12 @@ def iterate(iteration): for i in xrange(len(iteration)): if 0 < i < len(iteration)-1: top = (iteration[i-1], iteration[i], iteration[i+1]) - new.append(rules[top]) + if not TOTALISTIC: + new.append(rules[top]) + else: + for rule, func in RULE.items(): + if rule(sum(top)/3): + new.append(func(sum(top)/3)) else: new.append(0) return new @@ -72,5 +89,5 @@ while work: l.set_pixel(i, c[0], c[1], c[2]) work = l.update() t += 1 - if not (t % 50): + if not (t % SLEEP): iteration = iterate(iteration)