tasks a-s

Task/One-dimensional-cellular-automata/Python/one-dimensional-cellular-automata-1.py

@@ -0,0 +1,25 @@
+import random
+
+printdead, printlive = '_#'
+maxgenerations = 10
+cellcount = 20
+offendvalue = '0'
+
+universe = ''.join(random.choice('01') for i in range(cellcount))
+
+neighbours2newstate = {
+ '000': '0',
+ '001': '0',
+ '010': '0',
+ '011': '1',
+ '100': '0',
+ '101': '1',
+ '110': '1',
+ '111': '0',
+ }
+
+for i in range(maxgenerations):
+    print "Generation %3i:  %s" % ( i,
+          universe.replace('0', printdead).replace('1', printlive) )
+    universe = offendvalue + universe + offendvalue
+    universe = ''.join(neighbours2newstate[universe[i:i+3]] for i in range(cellcount))

Task/One-dimensional-cellular-automata/Python/one-dimensional-cellular-automata-2.py

@@ -0,0 +1,16 @@
+import random
+
+nquads = 5
+maxgenerations = 10
+fmt = '%%0%ix'%nquads
+nbits = 4*nquads
+a = random.getrandbits(nbits)  << 1
+#a = int('01110110101010100100', 2) << 1
+endmask = (2<<nbits)-2;
+endvals = 0<<(nbits+1) | 0
+tr = ('____', '___#', '__#_', '__##', '_#__', '_#_#', '_##_', '_###',
+      '#___', '#__#', '#_#_', '#_##', '##__', '##_#', '###_', '####' )
+for i in range(maxgenerations):
+   print "Generation %3i:  %s" % (i,(''.join(tr[int(t,16)] for t in (fmt%(a>>1)))))
+   a |= endvals
+   a = ((a&((a<<1) | (a>>1))) ^ ((a<<1)&(a>>1))) & endmask