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# LifeHistory
# a variant of HistoricalLife with two extra ON states
# and two extra OFF states, for annotation purposes:
# state 0: OFF
# state 1: ON
# state 2: history/envelope (state=2 if cell was ever ON)
# state 3: marked ON (may change to OFF but will always remain marked)
# state 4: marked OFF (may change to ON but will always remain marked)
# state 5: start ON (becomes a normal marked OFF cell when it dies)
# state 6: boundary OFF (can never turn on -- can keep subpatterns in a
# stamp collection from interfering with each other)
n_states:7
neighborhood:Moore
symmetries:rotate8
var a={0,2,4,6}
var b={0,2,4,6}
var c={0,2,4,6}
var d={0,2,4,6}
var e={0,2,4,6}
var f={0,2,4,6}
var g={3,5}
var h={0,1,2}
var i={0,1,2,3,4,5,6}
var j={0,1,2,3,4,5,6}
var k={0,1,2,3,4,5,6}
var l={0,1,2,3,4,5,6}
var m={0,1,2,3,4,5,6}
var n={0,1,2,3,4,5,6}
var o={0,1,2,3,4,5,6}
var p={0,1,2,3,4,5,6}
var q={1,3,5}
var R={1,3,5}
var S={1,3,5}
var T={1,3,5}
var u={3,4,5}
# boundary cell always stays a boundary cell
6,i,j,k,l,m,n,o,p,6
# anything else that touches a boundary cell dies
# (using 'u' instead of 'g' below lets gliders survive as blocks)
g,6,i,j,k,l,m,n,o,4
1,6,i,j,k,l,m,n,o,2
# marked 3-neighbour birth
# (has to be separate from the next section
# only to handle the extra 'start' state 5)
4,R,S,T,a,b,c,d,e,3
4,R,S,a,T,b,c,d,e,3
4,R,S,a,b,T,c,d,e,3
4,R,S,a,b,c,T,d,e,3
4,R,S,a,b,c,d,T,e,3
4,R,a,S,b,T,c,d,e,3
4,R,a,S,b,c,T,d,e,3
# marked 3-neighbour survival
g,R,S,T,a,b,c,d,e,g
g,R,S,a,T,b,c,d,e,g
g,R,S,a,b,T,c,d,e,g
g,R,S,a,b,c,T,d,e,g
g,R,S,a,b,c,d,T,e,g
g,R,a,S,b,T,c,d,e,g
g,R,a,S,b,c,T,d,e,g
# normal 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
# ON states 3 and 5 go to history state 4 if they don't survive
g,i,j,k,l,m,n,o,p,4
# Otherwise ON states die and become the history state
q,i,j,k,l,m,n,o,p,2
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