Rule:SlowLife

@RULE SlowLife

A variant of Life that shows births (green cells) and deaths (red cells) in every 2nd generation. SlowLife patterns work the same as in Life, but twice as slow. Author: Andrew Trevorrow (andrew@trevorrow.com).

The @TREE data was created by copying the following Python code to the clipboard and running Golly's make-ruletree.py script.

name = "SlowLife" n_states = 4 n_neighbors = 8 def transition_function(s):

   # NW, NE, SW, SE, N, W, E, S, C = s
   C = s[8]
   
   # live states:
   normal = 1
   birth = 2
   death = 3
   
   if C == birth: return normal
   if C == death: return 0
   
   # count the number of normal neighbors
   ncount = 0
   for i in xrange(8):
       if s[i] == normal: ncount += 1
       # no change if there are any birth/death neighbors
       if s[i] > normal: return C
   
   if C == 0 and ncount == 3: return birth
   if C == normal and (ncount < 2 or ncount > 3): return death
   
   return C

@TREE

num_states=4 num_neighbors=8 num_nodes=39 1 0 3 1 0 1 0 1 1 0 2 0 0 1 1 2 0 1 1 1 2 1 1 1 1 3 2 3 4 4 1 2 1 1 0 2 1 6 1 1 3 3 7 4 4 3 4 4 4 4 4 5 8 9 9 2 6 0 1 1 3 7 11 4 4 4 8 12 9 9 4 9 9 9 9 5 10 13 14 14 3 11 2 4 4 4 12 16 9 9 5 13 17 14 14 5 14 14 14 14 6 15 18 19 19 3 2 2 4 4 4 16 21 9 9 5 17 22 14 14 6 18 23 19 19 6 19 19 19 19 7 20 24 25 25 4 21 21 9 9 5 22 27 14 14 6 23 28 19 19 7 24 29 25 25 7 25 25 25 25 8 26 30 31 31 5 27 27 14 14 6 28 33 19 19 7 29 34 25 25 8 30 35 31 31 8 31 31 31 31 9 32 36 37 37

@COLORS

0 48 48 48 background is dark gray 1 255 255 255 normal is white 2 0 255 0 birth is green 3 255 0 0 death is red

@ICONS

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XPM /* width height num_colors chars_per_pixel */ "15 45 10 1" /* colors */ ". c #303030" "B c #404040" "C c #808080" "D c #C0C0C0" "E c #FFFFFF" "F c #004000" "G c #007F00" "H c #00C000" "I c #00FF00" "J c #FF0000" /* icon for state 1 */ "..............." "....BDEEEDB...." "...DEEEEEEED..." "..DEEEEEEEEED.." ".BEEEEEEEEEEEB." ".DEEEEEEEEEEED." ".EEEEEEEEEEEEE." ".EEEEEEEEEEEEE." ".EEEEEEEEEEEEE." ".DEEEEEEEEEEED." ".BEEEEEEEEEEEB." "..DEEEEEEEEED.." "...DEEEEEEED..." "....BDEEEDB...." "..............." /* icon for state 2 */ "..............." "....FHIIIHF...." "...HIIIIIIIH..." "..HIIIIIIIIIH.." ".FIIIHF.FHIIIF." ".HIIH.....HIIH." ".IIIF.....FIII." ".III.......III." ".IIIF.....FIII." ".HIIH.....HIIH." ".FIIIHF.FHIIIF." "..HIIIIIIIIIH.." "...HIIIIIIIH..." "....FHIIIHF...." "..............." /* icon for state 3 */ "..............." ".JJ.BDEEEDB.JJ." ".JJJEEEEEEEJJJ." "..JJJEEEEEJJJ.." ".BEJJJEEEJJJEB." ".DEEJJJEJJJEED." ".EEEEJJJJJEEEE." ".EEEEEJJJEEEEE." ".EEEEJJJJJEEEE." ".DEEJJJEJJJEED." ".BEJJJEEEJJJEB." "..JJJEEEEEJJJ.." ".JJJEEEEEEEJJJ." ".JJ.BDEEEDB.JJ." "..............."

XPM /* width height num_colors chars_per_pixel */ "7 21 11 1" /* colors */ ". c #303030" "B c #404040" "C c #808080" "D c #C0C0C0" "E c #FFFFFF" "F c #004000" "G c #007F00" "H c #00C000" "I c #00FF00" "J c #FF0000" "K c #E0E0E0" /* icon for state 1 */ ".BKEKB." "BEEEEEB" "KEEEEEK" "EEEEEEE" "KEEEEEK" "BEEEEEB" ".BKEKB." /* icon for state 2 */ ".FHIHF." "FIIIIIF" "HIH.HIH" "II...II" "HIH.HIH" "FIIIIIF" ".FHIHF." /* icon for state 3 */ "JBKEKBJ" "BJEEEJB" "KEJEJEK" "EEEJEEE" "KEJEJEK" "BJEEEJB" "JBKEKBJ"