Question: Guns that can be pointed in a direction?

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alphonse23
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Question: Guns that can be pointed in a direction?

Post by alphonse23 » May 9th, 2015, 10:03 pm

Sorry, I'm new to the community, so if this is an ignorant question, please forgive me. I did a google search but could not come up with anything.

Has anyone found a general gun that can be pointed in a direction (A generator/gun like Adam P. Goucher and Matthias Merzenich period-20/40 gun)? So like a generator that produces gliders, but the direction of the glider can be specified?
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Extrementhusiast
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Re: Question: Guns that can be pointed in a direction?

Post by Extrementhusiast » May 10th, 2015, 1:38 am

So, like this?

Code: Select all

x = 49, y = 49, rule = B3/S23
31b2o$31b2o5b2o$38b2o3$7b2o8b2o17b2o$7b2o9bo17b2o$18bobo21b2o$19bo22b
2o$b2o$b2o$5b2o$5b2o15bo$22bo$22b3o$24bo$2o$2o41bo$41b3o$40bo$41bo2$
34b3o$34bo$14b2o17b3o$14bo$12b3o2$7bo$8bo$5b3o$5bo41b2o$47b2o$24bo$24b
3o$26bo$26bo15b2o$42b2o$46b2o$46b2o$5b2o22bo$5b2o21bobo$11b2o17bo9b2o$
11b2o17b2o8b2o3$9b2o$9b2o5b2o$16b2o!
This is an example of a multi-barreled gun.
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Freywa
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Re: Question: Guns that can be pointed in a direction?

Post by Freywa » May 10th, 2015, 1:51 am

No, I think you've misinterpreted the question. I think what he means is a construction that, given a glider on one of four different input lanes, emit a glider from a single point in a direction depending on what lane the input glider came from.
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alphonse23
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Re: Question: Guns that can be pointed in a direction?

Post by alphonse23 » May 10th, 2015, 5:10 am

No I meant, is there any other type of glider that can go in any direction, top, bottom, right, or left -- and does it have a gun where you can specify it's direction.

Maybe something like this:
http://www.conwaylife.com/wiki/Period-59_glider_gun
any of the Period-59 glider guns can go horizontal or vertical, I guess that's the only way in Game of Life to direct the flow of something -- is it?

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Re: Question: Guns that can be pointed in a direction?

Post by Freywa » May 10th, 2015, 5:27 am

The proper name for what you're thinking about is diagonal spaceship; see here for a sampler. Indeed, there's now a gun for the crab, but as for turning these spaceships around… well that's a different story.
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alphonse23
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Re: Question: Guns that can be pointed in a direction?

Post by alphonse23 » May 10th, 2015, 5:55 am

Where's the crab gun?

So gliders are the only spaceships that are easy enough, or at least studied enough, to be directed?

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calcyman
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Re: Question: Guns that can be pointed in a direction?

Post by calcyman » May 10th, 2015, 8:13 am

The Life rules are invariant under a group of symmetries equal to a semidirect product of Z^2 (the normal subgroup of translations) with D_8 (rotations and reflections). As such, if you have a gun producing spaceships in one direction, you can reflect and/or rotate it to produce identical spaceships travelling in another direction.

For example, the two loafer guns here produce loafers in different directions, and are identical up to an isometry (in this case, rotation by pi/2):

Code: Select all

x = 516, y = 262, rule = B3/S23
72b2o5bo19b2o$72b2o5b3o16bobo$82bo5b2o7b3o12bo$81b2o5b2o6b3o8b2o3b4o$
97b3o8b2o3b4o$98bobo2b2obob2o3bo2bo5b2o$99b2o2b2obobo4b4o5b2o$71b3o31b
2obo3b4o$112bo$71bobo$70b5o9bo$69b2o3b2o7b3o12bo$69b2o3b2o6b5o9b2o$81b
2o3b2o9b2o$24bo19bo5b2o30b5o$24b4o14b3o5b2o20bo9bo3bo$8bo16b4o5b2o5bo
31b2o8bobo$7bobo5b2o8bo2bo5b2o5b2o41bo$5b2o3bo14b4o46bo2bo25bobo2bobo$
2o3b2o3bo4bobob2o3b4o23bo23bo2bobo8bobo8b2obo2bo2bo2bob2o$2o3b2o3bo5b
2o3bo2bo25bobo18bo9b2o6b2o13bobo2bobo$7bobo10bo28bo3bo20bo6b2o7bo$8bo
8bo2bo17b3o9b3o18b2o8b2o$31bo5bo3bo6b2o3b2o23bobo$29b3o46bo$30bo5bo5bo
$30bo5b2o3b2o$27bob2o45b2o$27b2ob2o44bo12bo$15b2o12bobo7bo26b2o6bobo
10b2o$13bo4bo8b3o8bobo24b3o6b2o12b2o338b2o5bo20bo$12bo6bo6bo11bobo21bo
b2o362b2o5b3o18bobo$11bo8bo6b2o10bo3b2o17bo2bo372bo5b2o11bobo7bo$11bo
8bo18b2o4bo16bob2o6bobo362b2o5b2o11bo2bo6b2o$11bo8bo8bo9b2o5bo10b2o6b
3o4b2obo381bobo2b2o4b2o$12bo6bo8bobo8b2obo3bo9bobo7b2o5bo382bobo3b2o4b
3o7b2o$13bo4bo9b2o10bo5bo9bo17bo381bo5b2o4b2o8b2o$15b2o24bo3bo9b2o410b
2o$43b2o422bo$381b2o54b2o3b2o11bo$380bo2bo44bo11bo13bo$380bo46b3o7bo5b
o10b3o$380bo45b5o7b2ob2o$380bobo42b2o3b2o7bobo$380bobo43b5o9bo$381bo
44bo3bo9bo$427bobo20b2o$428bo21b2o7b2o6b2o$378b2o3b2o47b2o12bobo9bo2bo
4bo2bo$378bo5bo9b3o35bobo11bo10b6o2b6o$395bo31b2o4b3o14bo7bo2bo4bo2bo$
74bo304bo3bo11bo30bo2bo4b3o11bobo8b2o6b2o$72bobo305b3o11b3o30b2o4b3o$
70b2o13b3o344bobo$26b2o42b2o322b3o35b2o$25bo3bo5bo34b2o29bobo2bobo285b
3o$24bo5bo3bobo35bobo22b2obo2bo2bo2bob2o349b2o$14b2o8bo3bob2o2bobo37bo
26bobo2bobo285b3o16b2o19b2o26b2o4b3o$14b2o8bo5bo4bo54b2o303bo18bo19bo
24b2o6b5o$25bo3bo60bobo291bo10bo18bobo6bobo6bobo23b3o5bo3bobo$26b2o62b
o291bobo9b3o18b2o5bo2bo6b2o17bo7b2o6bo3b2o$32b2o3b2o29b3o312b2o36b2o
26b2ob2o8b2o$32bo5bo380b2o3bo37b2o$68bobo308bo41b2o25bo5bo$14b2o17bo3b
o29b5o9bo296b3o41bo2bo$15bo18b3o29b2o3b2o7b3o294b5o41bobo22b2obob2o$
15bobo6bo41b2o3b2o6b5o13b3o276b2o3b2o8bo79b2o$16b2o6b4o50b2o3b2o12bo
12bo266b5o10bo78bo$25b4o50b5o14bo8b4o235b2o29bo3bo8b3o71bo4bobo$25bo2b
o50bo3bo10b2o10b4o9b2o225b2o30bobo82bobo3b2o$25b4o51bobo11bobo9bo2bo9b
2o258bo82bo3b2o$24b4o51b3o7b2o4b3o8b4o5bo346bo3b2o$24bo46b2o5b2o5b4o2b
o4b3o8b4o4bo282b2o62bo3b2o$16b2o25b3o2b2o21bo7bo5b3ob2o4b3o12bo267b2o
18b2o63bobo$16b2o18b2o3b2obo2bo24b3ob3o15bobo281b2o84bo$32bo3b2o3b2obo
3b2o24bobo17b2o290bo82b2o$32b2o9bo340bobo49bo32b2o$31bobo13b2o296b3o
11b3o20b2o52b3o$47b3o294bo3bo33b2o55bo17bobo9bo$46bo2bo293bo5bo8bo3bo
19b2o54b2o16b2ob2o7bobo$47bobo293b2obob2o8bo3bo15b2o4bobo68b2o2b3o6bob
o$48bo328bobo6bo67b2o3b2o8bo$359b3o15bo77b2o$24b2o320bo29b2o16b2o3b2o$
25b2o50bo267bobo46b2o3b2o65b2obob2o$15b5o4bo51b2o267bobo11b3o33b5o8bo
57bo5bo$14bob3obo11b3o41bobo266b2o49bobo8bo8bo50bo3bo$15bo3bo85b2o5bo
21bo209bo13bo3bo22b2o20b3o5bo11bo25bo10bo3b3o$16b3o12bo3bo69b2o5b3o18b
obo207b3o12bo3bo22bobo8b3o16b3o8b3o10b5o8bobo8b2o$17bo13bo3bo79bo5b2o
10b2obo7b2o196bo3bo29b2o2b2o6bo36b2ob2o8bob3obo18bobo$18b2o94b2o5b2o
10b2ob2o6bobo194bob3obo11b3o14b2obo2bo2bo2bo35b3ob3o8bo3bo$18bobo11b3o
98b2obob3o6bo194b5o4bo28b2o6bo23bo11b3ob3o9b3o9b3o$18bobo112bobo2bo2bo
2bo2bo7b2o195b2o31bobo23bo12b3ob3o10bo10b3o$19bo114bo4b2o6bo7b2o194b2o
7bobo22b2o24b3o10b3ob3o22bo$32b3o109bobo214b2o62b2ob2o$144b2o215bo64b
3o38bo$16b2obob2o8bo3bo391bo15bo9bo13bo$16bo5bo8bo3bo68b3o7b2o3b2o10bo
bo309bo8b3o11bobo$17bo3bo81bo3bo7b5o11b2o303bo5bobo7b3o10b2ob2o$18b3o
11b3o67bo5bo6b2ob2o12bo303bobo2b2ob2o18bo5bo$67bo34bo5bo6b2ob2o316b2o
2bo5bo20bo$67b3o14b3o18bo10b3o140b2o182bo8bobo9b2o3b2o$70bo13bo18bo3bo
151b2o82b2o95b2o3b2o6bo$43b3o2b2o19b2o14bo18b3o236b2o$41b2obo2bo57bo
30b2o6b2o177b2o26bo116bo$41b2obo3b2o21b3o4b3o28b2o23bo4bo2bo4bo175b2o
26b4o74bo12bo25bo$43bo27b3o4bo30bo2bo18bo2bo4bo2bo4bo204b4o72bo13bo26b
o$19b2o26b2o21bo3bo4bo24b2o7bo15b2o3bo4bo2bo4bo204bo2bo72b3o10bo$19b2o
26b3o19bo5bo27bo2bo6bo16b2o4b2o6b2o112b3o91b4o51b2o$46bo2bo20bo3bo8b3o
18b2o7bo143b2ob2o11bo51b2o16b2o6b4o51bo3bo5bo7bo41b2o$47bobo21b3o9bo
25bo2bo144b2ob2o11bo68bobo6bo53bo5bo3bobo6bo18b2o21b2o$48bo35bo24b2o
146b5o80bo18b3o41bo3bob2o2bobo6bo18b2o$256b2o3b2o10bo36bo30b2o17bo3bo
40bo5bo4bo19b2o$272bobo35bo86b2o7bo3bo24bobo$321b2o3b2o31bo5bo30bobo8b
2o25b3o$258b2o12b3o35bo11b5o32b2o3b2o30bo16b2o3b2o13b3o$257b5o47bobo
10b2ob2o26b2o40b2o16bo5bo14b3o$257bo64b2ob2o25bo3bo43b2o33bobo5b2o$65b
2o192b3o10b3o34b3o11b3o15b2o8bo5bo4bo37b2o12bo3bo17b2o5bobo$65bobo193b
o79b2o8bo3bob2o2bobo51b3o27bo$56b2o2b2o6bo190b2o11bobo76bo5bo3bobo81b
2o$56b2obo2bo2bo2bo9b2o179b2o12bo35b3o40bo3bo5bo62bo$60b2o6bo8b4o53b2o
5bo16bo194b2o69b3o$65bobo9b2ob2o52b2o5b3o12b4o113bo35bobo87b3o21b5o$
65b2o12b2o63bo5b2o3bobob2o14b2o77b2o3b2o12bo36bo88b3o20b2o3b2o6bo$134b
o8b2o5b2o2bo2bob3o11bo2bo77bobobobo59bo77bo3bo20b5o5bobo$133bobo19bobo
b2o11bo7b5o70b5o5bobo42bo9bobo3bo88b2o6bo3bo3b2o12b2o$64bo68bobo20b4o
12bo6bo5bo70b3o7b2o42bo9b2o3b3o69b2o3b2o11b2o7bobo4b2o12b2o$63bobo68bo
10b3o10bo5bo7bo7b2o3bo71bo8bo57b5o96bo5b2o$63b2obo78b3o15bo9bo2bo7bo
138bobobobo55b3o45bobo$63b2ob2o5b2o69bo3bo14b3o9b2o146b2o3b2o55bobo47b
o$63b2obo5b2o14b8o35b2obob2o247b3o$63bobo8bo13bob4obo35bo5bo5b2o3b2o
163bo71b3o13b3o$43b3o2b2o14bo23b8o36bo3bo136bo38bo13bo58b3o10b2o$41b2o
bo2bo19b3o63b3o138b2o36b3o10bobo57b3o10b2o$41b2obo3b2o7b2o8b3o186b2o
15b2o7bobo40bobo57bobo9b2o$43bo112bo99b2o25b2o41bo58b3o10bobo$47b2o32b
o74bobo108bo15bo23bo18b2o71b2o$47b3o30b2o74b2o108b4o37bo18b2o27bo$46bo
2bo15b2o3b2o8bobo182b2obobo36bo18b2o27bobo5bo$47bobo3b2o3b2o6b5o69b2o
22bo2bob2obo2bo88b3obo2bo49bo33b2o6bobo33b2o3b2o$48bo5b5o8b3o38bo30b3o
22b4ob2ob4o89b2obobo49b4o39b2o34b2o3b2o$54b2ob2o9bo39b3o25bob2o24bo2bo
b2obo2bo80b2o8b4o4b3o42b2obobo68bo$54b2ob2o30bo7bo13bo24bo2bo115bobo9b
o6b3o41b3obo2bo51bo13b2o8b3o$55b3o30b4o5bobo10b2o24bob2o11b2o102bo17bo
3bo41b2obob2o33bo16b3o13b2o7b3o$83b2o2bo2b2o8b2o37b3o9b2o101b2o64b4ob
3o31bobo13b2obo23bo$83b2o2b2o11b2o4b2o32b2o130b2o3b2o42bo4bobo11bo18b
2o14b3o$80b2o10bo7b2o4b2o173bo46bo9b2o36b2o$65b2o5b2o5b3o10bo4bobo181b
3o44b2o9b2o$66bo5b2o6b2o10bo4bo167b2o5b2o10bo3bo73bo$56b2o5b3o17b2o
179b3o3bo4bo7b2o2bo2bo14b2o3b2o16b2o31bobo20bobo$56b2o5bo19b2o27b3o
139b2o5bob2o5bo17b2o38bo30b2o3bo19b2o16b2o$111bo3bo138b2o5bo2bo4bo6bo
10b2o17bo3bo8b2o5bobo30b2o3bo20bo16b2o$110bo5bo20b2o122bob2o9bobo30b3o
8b3o5b2o31b2o3bo28bo$110bo5bo20bobo124b3o40b3o5bob2o37b2o3bobo29b2o$
113bo23bo127b2o48bo2bo36bobo4bo25b2o4b2o$111bo3bo199bob2o36bo18b3o11b
2o4b3o$112b3o16b2o150b2o3b2o28b3o33b2o17bo3bo6bo3b2o4b2o$113bo17bobo
149b2o3b2o29b2o51bo5bo4b3o7b2o7b2o$108b2o21bo35bo116b5o83b2obob2o3bo3b
o6bo8bobo$106bo2bo55b3o117bobo93bob3obo16bo$97b2o6bo7b2o21b2o26bo217b
5o17b2o$97b2o6bo6bo2bo20bobo25b2o119b3o87bo$43b3o2b2o55bo7b2o21bo237bo
bo$41b2obo2bo58bo2bo264bobo$41b2obo3b2o58b2o52bo212bo18bo$43bo118bo
125b2o99bo4b4o$47b2o112bobo124bo85b2o13bo5b4o5b2o$47b3o50bo59b2ob2o
124b3o82b2o19bo2bo5b2o$46bo2bo48b4o57bo5bo125bo103b4o$47bobo47bobob2o
10b3o15b4o27bo114bo116b4o$48bo47bo2bob3o26b6o23b2o3b2o15bo93bobo116bo$
97bobob2o26b8o36bo5b4o91bobo$98b4o26b2o6b2o34bobo3bobob2o84b2o3bo2bo$
100bo16b2o10b8o35bobo2bo2bob3o8b2o73b2o4bobo$117bobo10b6o37bo4bobob2o
9b2o80bobo49bobo2b3o22bobo2b3o22bobo2b3o22bobo2b3o22bobo2b3o22bobo2b3o
22bobo2b3o$117bo13b4o44b4o94bo49bobob2o2bo21bobob2o2bo21bobob2o2bo21bo
bob2o2bo21bobob2o2bo21bobob2o2bo21bobob2o2bo$96b3o82bo146bo2b2obo23bo
2b2obo23bo2b2obo23bo2b2obo23bo2b2obo23bo2b2obo23bo2b2obo$96b3o65b2o4b
2o3b2o111b3o42bo29bo29bo29bo29bo29bo29bo$95bo3bo9bo54bo5bobobobo110bo
3bo35bo29bo29bo29bo29bo29bo29bo$108b3o54b3o3b5o92b2o16bo5bo34b3o27b3o
27b3o27b3o27b3o27b3o27b3o$94b2o3b2o6b5o55bo4b3o18b2o74bo16bo5bo34bo2bo
26bo2bo26bo2bo26bo2bo26bo2bo26bo2bo26bo2bo$106bobobobo11b3o20b2o24bo
19bo75bobo7b2o8bo38b2o28b2o28b2o28b2o28b2o28b2o28b2o$106b2o3b2o11bo22b
o35bobo5bobo76b2o5bo2bo10bo36b2o28b2o28b2o28b2o28b2o28b2o28b2o$125bo9b
o9bobo34bo2bo5b2o83bo7b2ob4o$134bobo8b2o34b2o93bo6bo2b4o$122bobo8bob2o
42b2o3bo91bo7b2o29b2o$117bo4bo2bo6b2ob2o44b2o94bo2bo34bo2bo9b2o$118b2o
5b2o6bob2o45bo2bo93b2o29b2o7bo8b2o$106b2o5b2o8bo3b2o5bobo46bobo84b2o
37bo2bo6bo22b2o6b2o$107bo5b2o10b2o8bo55b2o77b2o38b2o7bo20bo4bo2bo4bo$
97b2o5b3o15bo2bo65b2o122bo2bo11b2o8bo4bo2bo4bo$97b2o5bo17bobo50b2o138b
2o12b2o9bo4bo2bo4bo$43b3o2b2o227b2o3b2o27bo19bo10b2o6b2o$41b2obo2bo
111bobo11bo2bo101b5o6bo20b3o$41b2obo3b2o109bo3bo114bo2bob2o3bobo18bo3b
o$43bo119bo9b2o2b2o91b3o9bobobo2b2o20bo10b3o$47b2o110bo4bo12b2o90b2ob
2o7b2obobo21bo5bo6b2ob2o$47b3o73bo2b2o4b2o2bo26bo105b2ob2o11bo22bo5bo
6b2ob2o12bo$46bo2bo72bo3b3o2b3o3bo21bo3bo105b5o35bo3bo7b5o11b2o$47bobo
73bo2b2o4b2o2bo6bo15bobo21b2o83b2o3b2o35b3o7b2o3b2o10bobo$48bo93b3o38b
obo$142bob2o37bo4b2o3b2o155b2o$145b2o28bo14b3o81bo75bobo$165bo8b3o12bo
3bo79bob2o9b3o51bo4b2o6bo7b2o$143b4o17b3o6bobobo12bobo80bo11bo3bo49bob
o2bo2bo2bo2bo7b2o$143b3o18b3o6bobobo13bo92bo5bo48b2obob3o6bo$144bo29b
3o96b2obo43b2o5b2o10b2ob2o6bobo$152b3o7b2o3b2o6bo12b3o80bo2bo8bo7bo29b
o5b2o10b2obo7b2o$135b2o14bo3bo6b2o3b2o19b3o80bobo9bo7bo19b2o5b3o18bobo
$123bobo10b2o12bo5bo154b2o5bo21bo$123bo2bo8bo15bo3bo19bo108bo5bo$114b
2o10b2o11b2o11b3o10bo8b3o108bo3bo$114b2o8bo3b2o8bobo11b3o9bobo6bobobo
8b2o3b2o93b3o$119b2o5b2o9bo6b2o20b2o5bobobo9b5o80b3o$118bo4bo2bo10bo2b
o2bo2bob2o5b2o9b2o6b3o11b3o80bo3bo$123bobo11bo6b2o2b2o5bo9b3o7bo13bo
80bo5bo$138bobo15b3o5bobo104bo3bo$139b2o17bo5b2o106b3o$272b3o4$43b3o2b
2o223b2o$41b2obo2bo140b2o83b2o$41b2obo3b2o138b2o$43bo$47b2o$47b3o$46bo
2bo$47bobo$48bo22$43b3o2b2o$41b2obo2bo$41b2obo3b2o$43bo$47b2o$47b3o$
46bo2bo$47bobo$48bo!
Is that what you mean?
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Re: Question: Guns that can be pointed in a direction?

Post by dvgrn » May 10th, 2015, 10:28 am

alphonse23 wrote:No I meant, is there any other type of glider that can go in any direction, top, bottom, right, or left -- and does it have a gun where you can specify it's direction.
The pattern in calcyman's answer is a good sample of the way a controllable or programmable multi-directional gun would most probably be designed. Set up guns that are always shooting in whatever directions you want to be possible. Then add suppressors for all the guns (usually a glider gun or two with the same timing as the output, with maybe some catalysts nearby so the suppression reaction is clean). Then arrange the suppressors so that they can be turned off and on again by... whatever your controller mechanism is.

[Can you be more specific about what kind of control system you're envisioning? Where is the input coming from that is going to change the gun's direction?]

We do have other options available, actually. Nowadays it wouldn't be terribly difficult to set up a programmable universal constructor to build and trigger a loafer seed (for example) in any orientation. Then the controller circuitry could be arranged to decide which orientation of seed gets constructed. Of course this would be ridiculously large and slow compared to the other method -- but with Golly Hashlife, sometimes you can just zoom out a few factors of two and increase the step size proportionally, and suddenly it doesn't seem so different after all...!
alphonse23 wrote:Where's the crab gun?

So gliders are the only spaceships that are easy enough, or at least studied enough, to be directed?
Here's a link to a sample crab gun.

Oddly enough, just in the last year we've maybe tripled or quadrupled the number of spaceships that could theoretically be controlled in this way. For any of the completed recipes in the Small Spaceship Syntheses thread, we could design a controllable gun.

Or -- the other thing that "directed" might mean -- we could build a stable reflector for any of those spaceships. A stable reflector is a pattern that just sits there until a spaceship hits it, and then some time later a copy of the spaceship comes out, heading in a different direction, and the stable reflector returns to its original configuration.

Again, for most of the new spaceships, such a stable reflector would be really huge and slow; it would convert the incoming spaceship into some other type of signal, which could then be used to build anything you wanted, not just a copy of the same spaceship.

But the technology to do this kind of thing is certainly available; all that's needed is enough grant money to get someone to do the tedious work of putting it all together. Too bad that multi-year Conway's Life pattern-construction grants are in such short supply.

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alphonse23
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Re: Question: Guns that can be pointed in a direction?

Post by alphonse23 » May 10th, 2015, 1:33 pm

Thanks guys for the awesome replies. Now I have a ton of reading to do! :D

You guys should sticky a thread for people just getting caught up with where the field is today.

I guess I'm interesting in the possibilities of turning spaceships and guns into signals and circuits and seeing where that could go.

Thanks!

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Extrementhusiast
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Re: Question: Guns that can be pointed in a direction?

Post by Extrementhusiast » May 10th, 2015, 2:29 pm

alphonse23 wrote:You guys should sticky a thread for people just getting caught up with where the field is today.
Which field?
  • Glider synthesis
  • Construction with stationary guns
  • Construction with rakes
  • Slide guns and tethered rakes
  • P30/P46 logic circuitry
  • Stable circuitry
  • Glider gun optimization
  • Welding still lifes
  • Glider color and phase, relating to reflections
  • Oscillator rotors and stators
  • Grayships
  • Spaceship types
  • Cordership combinations
  • Generalized caterpillar construction
  • "Spaceships"/signals that travel in wires and agars
  • Universal constructors
  • Construction with slow salvos (p2, monochromatic, mod N, etc.)
  • One-time reflectors and multi-glider "seeds"
  • Sparse Life and the fate of the "early universe"
  • Minimal infinite-growth patterns
  • Unusual population/bounding-box growth rates
  • Novelty-generating feedback loops
  • Golly Hashlife uses and limitations
  • Golly scripting
  • Reaction mining
  • de Bruijn graphs
  • SAT solvers
  • Search software -- separate explanations needed for each:
    • Bellman
    • lifesrc/WLS/JLS
    • gencols
    • catalyst/catgl
    • ptbsearch
    • Hersrch
    • etc.
(List taken from this post)
I Like My Heisenburps! (and others)

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Tropylium
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Re: Question: Guns that can be pointed in a direction?

Post by Tropylium » November 16th, 2015, 5:12 pm

Extrementhusiast wrote:
alphonse23 wrote:You guys should sticky a thread for people just getting caught up with where the field is today.
Which field?
[liѕt]
Let's subgroup that a bit further:
  • ENGINEERING
    • Glider synthesis
      • Glider color and phase, relating to reflections
      • Construction with slow salvos (p2, monochromatic, mod N, etc.)
      • One-time reflectors and multi-glider "seeds"
      • Construction with stationary guns
      • Construction with rakes
    • Signal circuitry
      • P30/P46 logic circuitry
      • Stable circuitry
      • "Spaceships"/signals that travel in wires and agars
      • Novelty-generating feedback loops
    • Spaceship design
      • Grayships
      • Spaceship types
      • Cordership combinations
      • Generalized caterpillar construction
    • Growth patterns
      • Slide guns and tethered rakes
      • Glider gun optimization
      • Minimal infinite-growth patterns
      • Unusual population/bounding-box growth rates
    • Universal constructors
  • KINETICS
    • Reaction mining
  • CLASSIFICATION
    • Oscillator rotors and stators
    • Welding still lifes
    • de Bruijn graphs
  • COSMOLOGY
    • Sparse Life and the fate of the "early universe"
  • PROGRAMMING
    • Golly Hashlife uses and limitations
    • Golly scripting
    • SAT solvers
    • Search software
      • Bellman
      • lifesrc/WLS/JLS
      • gencols
      • catalyst/catgl
      • ptbsearch
      • Hersrch
      • etc.
It would be possible to add more, of course… there's nothing here about e.g. oscillator design, statistical properties of soups, or chaos theory.

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