BlueGreycalmElegant

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/programs/demos/life2/lif/LINEPUF.lif
0,0 → 1,185
#Life 1.05
#D Line Puffer of width 33
#D
#D The width is defined by the length of the first free-standing line
#D in the puffer's plume. The formula for this is 12n+1-s, where n is
#D the number of middle segments, and s is the number of cells covered
#D by the little 3-cell, 5-unit puff-suppressors on the upper edge of
#D this otherwise symmetrical pattern.
#D
#D Here, n=4, and s=6+5+5. The Y-shaped puff-suppressors can have 5,
#D 6, or 7 units of spacing on between them, or between one of them and
#D the end. You only need 2 or 3 such suppressors to produce any
#D puffer width.
#D
#D Notice that placing random debris behind the puffer sometimes
#D affects the plume permanently - even turning it asymmetrical if the
#D debris was asymmetrical. It also affects the period of the puffer,
#D that is, the number of generations it takes to repeat. By
#D increasing the width, the period can be made to rise exponentially,
#D surpassing 10^6 at a width of only about 70. But the most amazing
#D thing is that it has a half-life on the order of 10^8 generations.
#D
#D By Hartmut Holzwart and Al Hensel, April 1994
#N
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