Subversion Repositories Kolibri OS

#Life 1.05

#D Pufferless breeder (Standing breeder)

#D A shotgun sends an 8 spaceship salvo eastward every 360 gens.

#D Call the spaceships, from top to bottom, A, B, C, D, D', C', B',

#D and A'.  D and D' are MWSSs; the others are HWSSs.  (The shotgun's

#D output is approximately glide symmetric.)  Every 360 gens, two

#D guns and a kickback reaction are used to create a northeastward

#D glider in front of A and B.  A and B redirect the glider

#D southeastward.  Then C' and D' duplicate it, producing 2 SEward

#D gliders and a block.  The second glider escapes, the block is

#D deleted by D, and the first glider is turned NEward by A' and B'.

#D It is duplicated by C and D, again producing an escaping glider, a

#D block that gets deleted by the next D', and another NEward glider.

#D The latter interacts with the next A and B in the same way as the

#D original glider did, 596 gens later and 118 units farther east.

#D

#D Thus, in gen t, there are approximately  t/360  gliders zigzagging

#D east, each producing 2 more gliders every 596 gens.  So the

#D population is growing by about  5 * 2/596 * t/360  =  t/21456

#D cells per generation, and the total population is about  t^2/42912.

#D The gliders occupy a nonconvex quadrilateral with vertices at

#D (approximately)  (0,0),  (t/4,t/4),  (59t/298,0),  and  (t/4,-t/4).

#D Dean Hickerson, dean@ucdmath.ucdavis.edu  10/12/92

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