Hello. I have been messing around with permanently-dead cells in B3/S23, and made a ruletable I call "greycells".
Code: Select all
@RULE greycells
Grey cells never die, and do not create life
state 0: OFF
state 1: ON
state 2: GREY
@TABLE
n_states:3
neighborhood:Moore
symmetries:rotate8
var a={0,2}
var b={0,2}
var c={0,2}
var d={0,2}
var e={0,2}
var f={0,2}
var h={0,1,2}
var i={0,1,2}
var j={0,1,2}
var k={0,1,2}
var l={0,1,2}
var m={0,1,2}
var n={0,1,2}
var o={0,1,2}
var p={0,1,2}
var q={1}
var R={1}
var S={1}
var T={1}
# grey cell never changes
2,i,j,k,l,m,n,o,p,2
# 3-neighbour birth
h,R,S,T,a,b,c,d,e,1
h,R,S,a,T,b,c,d,e,1
h,R,S,a,b,T,c,d,e,1
h,R,S,a,b,c,T,d,e,1
h,R,S,a,b,c,d,T,e,1
h,R,a,S,b,T,c,d,e,1
h,R,a,S,b,c,T,d,e,1
# 2-neighbour survival
q,R,S,a,b,c,d,e,f,q
q,R,a,S,b,c,d,e,f,q
q,R,a,b,S,c,d,e,f,q
q,R,a,b,c,S,d,e,f,q
# otherwise DIE
q,h,i,j,k,l,m,n,o,0
@COLORS
1 255 255 255
2 96 96 96
Yes, those are P19s!! I'm fairly certain this rule is omniperiodic, as only 4 periods are unaccounted for. 34 and 38 seem possible to construct if a period doubler is found. I hope at least something in here is new. Thanks