Hello to you, and welcome to the forums!!
Patterns are usually posted by copying the RLE of the pattern, and pasting it in between BBCode "code" tags (hit the quote button on my post to see how it is formatted). For example, here's a glider, the icon of this site:
Code: Select all
x = 3, y = 3, rule = Life
bo$2bo$3o!
If you're going to be doing serious work with cellular automata, I highly recommend getting Golly if you don't have it already. It can run enormous patterns that LifeViewer can't handle, often with a speedup in the thousands or millions (even billions if it works properly). The process for getting a RLE is the same -- select the patten and hit Ctrl+C. (Except that in Golly you can rebind the 'copy' action to whatever keyboard shortcut you prefer, and IIRC the default on Mac is the familiar Command+C.)
Also, just a word of warning: Oscillators, especially in Star Wars, are relatively common and often useless, so they aren't cataloged. Interesting patterns typically do one of three things: fill a "hole" in existing search efforts (such as the first p19 oscillator, Riley's p19), prove something (such as Ilkka Törmä and Ville Salo's solution to the unique father problem), or do something extremely interesting (such as _zM's computer). If you post the oscillator you found, don't be surprised if you end up being the butt of another "i found a new still life guys!!" joke.