breeder

En autómatas celulares como Conway's Game of Life, un breeder es un patrón que exhibe crecimiento cuadrático, al generar múltiples copias de un patrón secundario, cada uno de los cuales genera luego múltiples copias de un patrón terciario. Classification Breeders can be classed by the relative motion of the patterns. The classes are denoted by three-letter codes, which denote whether the primary, secondary and tertiary elements respectively are moving (M) or stationary (S). The four basic types are: SMM – A gun that fires out rakes. MSM – A puffer that leaves guns in its wake. MMS – A rake that fires out puffers. MMM – A rake that fires out more rakes, such that there are no stationary elements. A spacefiller (which also undergoes quadratic growth) may be thought of as a fifth class of breeder. However it differs from a true breeder in that it expands a single island of cells, rather than creating independent objects. References