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#CXRLE Pos=-18,-14 Gen=0
# Toffoli-Margolus gas, from:
#
# T. Toffoli, N. Margolus "Cellular Automata Machines: A New
# Environment for Modeling", MIT Press (1987)
#
# At the time of writing, Golly does not support the Margolus neighborhood,
# so we are emulating it by using some extra states. The odd-numbered cells
# are those in the top-left corner of the 2x2 block to be updated.
# Configurations must have the correct pattern of states to work correctly
# - you can't just scribble on the pattern! First run export.py in
# Scripts/Python/Margolus. Then draw, using states 1, 2 and 3. Next
# select-all and run import.py. You can now continue running the CA.
#
# Rule tree produced by RuleTableToTree.py from the Margolus rule table:
#
# # original Margolus states:
# # 0 : background
# # 1 : wall
# # 2 : gas particle in an even step of the simulation
# # 3 : gas particle in an odd step of the simulation
#
# neighborhood:Margolus
# n_states:4
# symmetries:rotate4
#
# # The Margolus transition a,b,c,d : e,f,g,h means:
# #
# # a b becomes e f
# # c d g h
#
# 0,0,0,2 : 0,0,3,0 # even step: rotate clockwise
# 0,0,0,3 : 0,2,0,0 # odd step: rotate anti-clockwise
# 0,0,1,2 : 0,0,1,3 # contains a wall: no movement
# 0,0,1,3 : 0,0,1,2 # contains a wall: no movement
# 0,0,2,1 : 0,0,3,1 # contains a wall: no movement
# 0,0,2,2 : 3,0,3,0 # even step: rotate clockwise
# 0,0,3,1 : 0,0,2,1 # contains a wall: no movement
# 0,0,3,3 : 0,2,0,2 # odd step: rotate anti-clockwise
# 0,1,1,2 : 0,1,1,3 # contains a wall: no movement
# 0,1,1,3 : 0,1,1,2 # contains a wall: no movement
# 0,1,2,0 : 0,1,3,0 # contains a wall: no movement
# 0,1,2,1 : 0,1,3,1 # contains a wall: no movement
# 0,1,2,2 : 0,1,3,3 # contains a wall: no movement
# 0,1,3,0 : 0,1,2,0 # contains a wall: no movement
# 0,1,3,1 : 0,1,2,1 # contains a wall: no movement
# 0,1,3,3 : 0,1,2,2 # contains a wall: no movement
# 0,2,1,1 : 0,3,1,1 # contains a wall: no movement
# 0,2,1,2 : 0,3,1,3 # contains a wall: no movement
# 0,2,2,0 : 0,3,3,0 # two or four particles collide: no movement
# 0,2,2,1 : 0,3,3,1 # contains a wall: no movement
# 0,2,2,2 : 3,0,3,3 # even step: rotate clockwise
# 0,3,1,1 : 0,2,1,1 # contains a wall: no movement
# 0,3,1,3 : 0,2,1,2 # contains a wall: no movement
# 0,3,3,0 : 0,2,2,0 # two or four particles collide: no movement
# 0,3,3,1 : 0,2,2,1 # contains a wall: no movement
# 0,3,3,3 : 2,2,0,2 # odd step: rotate anti-clockwise
# 1,1,1,2 : 1,1,1,3 # contains a wall: no movement
# 1,1,1,3 : 1,1,1,2 # contains a wall: no movement
# 1,1,2,2 : 1,1,3,3 # contains a wall: no movement
# 1,1,3,3 : 1,1,2,2 # contains a wall: no movement
# 1,2,2,1 : 1,3,3,1 # contains a wall: no movement
# 1,2,2,2 : 1,3,3,3 # contains a wall: no movement
# 1,3,3,1 : 1,2,2,1 # contains a wall: no movement
# 1,3,3,3 : 1,2,2,2 # contains a wall: no movement
# 2,2,2,2 : 3,3,3,3 # two or four particles collide: no movement
# 3,3,3,3 : 2,2,2,2 # two or four particles collide: no movement
#
x = 40, y = 38, rule = TMGasMargolus_emulated
40B$BABABABABABABABABABABABABABABABABABABABA$40B$BABABCDCDCDCDCDCDCDC
DCDCDCDCDCDCDCDABABA$5BD28BD5B$BABABCBABABABABABABABABABABABABABADABA
BA$5BD28BD5B$BABABCBABABABABABABABABABABABABABADABABA$5BD28BD5B$BABAB
CBABABABABABABABABABABABABABADABABA$5BD28BD5B$BABABCBABABABABABABABAB
ABABABABABADABABA$5BD28BD5B$BABABCBABABABABABABABABABABABABABADABABA$
5BD6BF3B2F3B3F10BD5B$BABABCBABABABEBABABEBEBEBABABABABADABABA$5BD5B2F
BF2B2F2BF12BD5B$BABABCBABAFAFEFABAFEFABABABABABABADABABA$5BD4B2FBF2BF
2BF3BF10BD5B$BABABCBABABABEBEFEBABEBEBABABABABADABABA$5BD3BF4BFB3F4BF
10BD5B$BABABCBABABEFEBABABABAFABABABABABADABABA$5BD3BFB2F5BFB2F12BD5B
$BABABCBABEBAFABEBABEBEBEBABABABABADABABA$5BD7BF2BF5BF11BD5B$BABABCBA
BEBEBABABABABEFABABABABABADABABA$5BD5BFB2F4B2F13BD5B$BABABCBABABABABA
FABABABEBABABABABADABABA$5BD28BD5B$BABABCBABABABABABABABABABABABABABA
DABABA$5BD28BD5B$BABABCDCDCDCDCDCDCDCDCDCDCDCDCDCDCDABABA$40B$BABABAB
ABABABABABABABABABABABABABABABABA$40B$BABABABABABABABABABABABABABABAB
ABABABABA$40B$BABABABABABABABABABABABABABABABABABABABA!
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