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#############
#...........#
###B#C#B#D###
#A#D#C#A#
#########
#############
#...........#
###D#D#A#A###
#C#C#B#B#
#########
State = Struct.new(:spaces, :energy) do
ENERGY = { A: 1, B: 10, C: 100, D: 1000 }.transform_keys(&:to_s)
ROOMS = [2, 4, 6, 8]
def rooms = ROOMS.to_h { [_1, spaces.fetch(_1)] }
def valid_moves
end
end
spaces = Array.new(11) { [] }
# input = "DC DC AB AB"
input = "BA CD BC DA"
input.split(" ").map(&:chars).each.with_index do |amphipods, i|
spaces[(i+1) * 2] = amphipods
end
start = State.new(spaces, 0)
p start
p start.rooms
p start.valid_moves