Rule:BrainsBrian
@RULE BrainsBrian
https://conwaylife.com/forums/viewtopic.php?p=43521#p44055
A Snoitareneg rule -- inverse Generations -- for Brian's Brain, /2/3
state 0: OFF state 1: turning ON state 2: ON
@TREE
num_states=3 num_neighbors=8 num_nodes=27 1 0 2 0 2 0 0 0 1 1 2 0 2 0 0 2 3 1 1 3 2 2 2 0 3 3 3 5 4 4 4 6 3 5 5 1 4 6 6 8 5 7 7 9 3 1 1 1 4 8 8 11 5 9 9 12 6 10 10 13 4 11 11 11 5 12 12 15 6 13 13 16 7 14 14 17 5 15 15 15 6 16 16 19 7 17 17 20 8 18 18 21 6 19 19 19 7 20 20 23 8 21 21 24 9 22 22 25
@TABLE
n_states:3 neighborhood:Moore symmetries:permute
var a={0,1,2} var b={0,1,2} var c={0,1,2} var d={0,1,2} var e={0,1,2} var f={0,1,2} var g={0,1,2} var h={0,1,2}
var i={0,1} var j={0,1} var k={0,1} var l={0,1} var m={0,1} var n={0,1}
- cells are born (gradually) if they have 2 ON neighbors
0,2,2,i,j,k,l,m,n,1
- to ON after one tick
1,a,b,c,d,e,f,g,h,2
- all ON cells die
2,a,b,c,d,e,f,g,h,0
@COLORS 1 0 128 0 2 216 255 216