1193
votes
Accepted
Build a working game of Tetris in Conway's Game of Life
This began as a quest but ended as an odyssey.
Quest for Tetris Processor, 2,940,928 x 10,295,296
The pattern file, in all its glory, can be found here, viewable in-browser here.
This project is the ...
1162
votes
Accepted
Build a digital clock in Conway's Game of Life
11,520 generations per clock count / 10,016 x 6,796 box / 244,596 pop count
There you go... Was fun.
Well, the design is certainly not optimal. Neither from the bounding box standpoint (those 7-...
- 8,528
832
votes
Build a working game of Tetris in Conway's Game of Life
Part 2: OTCA Metapixel and VarLife
OTCA Metapixel
(Source)
The OTCA Metapixel is a construct in Conway's Game of Life that can be used to simulate any Life-like cellular automata. As the LifeWiki (...
- 16k
797
votes
Build a working game of Tetris in Conway's Game of Life
Part 3: Hardware
With our knowledge of logic gates and the general structure of the processor, we can start designing all the components of the computer.
Demultiplexer
A demultiplexer, or demux, is ...
- 7,076
756
votes
Build a working game of Tetris in Conway's Game of Life
Part 4: QFTASM and Cogol
Architecture Overview
In short, our computer has a 16-bit asynchronous RISC Harvard architecture. When building a processor by hand, a RISC (reduced instruction set computer)...
- 29k
710
votes
Build a working game of Tetris in Conway's Game of Life
Part 6: The Newer Compiler to QFTASM
Although Cogol is sufficient for a rudimentary Tetris implementation, it is too simple and too low-level for general-purpose programming at an easily readable ...
- 28.5k
49
votes
Accepted
Minimally destroy CGCC in Game of Life
Score 1, 35 generations
Sorry, but I guess I wrecked the challenge. I brute-forced all meaningful one-dot additions by hand, and found no other answer that wins against this.
Raw ASCII format
...
- 73.8k
36
votes
Display the Hacker Logo
CSS+HTML, 56+84=140 bytes 52+84=136 bytes
Saved 4 bytes by incorporating suggestions from the comments.
td{border:1px solid#888;line-height:.4;font-size:3em
<...
- 849
32
votes
Accepted
Display the Hacker Logo
Mathematica, 62 bytes
Grid[{{,a=██,},{,,a},{a,a,a}},Frame->All,FrameStyle->Gray]
Mathematica, 71 bytes
...
- 24.4k
26
votes
25
votes
24
votes
17
votes
Game of Life arrowslits
Python 2, 142 136 135 bytes
-6 bytes thanks to ElPedro
-1 byte thanks to TuukkaX
...
- 18.4k
17
votes
15
votes
Display the Hacker Logo
HTML & CSS, 155 bytes
Turns out HTML is really forgiving about syntax errors.
1 byte saved thanks to @Octopus · 1 byte saved thanks to @Downgoat · 2 bytes saved thanks to @StephenS
2 bytes ...
- 13.1k
14
votes
Shortest Game of Life
Vim, 549 552 533 421 420 bytes
Nice.
+3 because of a bug where cells wouldn't die if no cells came to life.
-19 because I made a version that was generalized to any grid size and realized that I ...
- 9,130
14
votes
Display the Hacker Logo
Applesoft BASIC, 479 476 516 515 483 482 bytes
-32 by using unreadable variable names :P
-1 because Apple decided to be magical and let me use an implicit/nonexistent GOTO
Here is my own (very ...
- 13.8k
14
votes
14
votes
Is it a still-life?
APL (Dyalog Extended), 61 56 48 40 37 36 35 33 32 bytes
6∧+/w∘≢¨⊢∘⌂life\5/⊆w←0,∘⌽∘⍉⍣16⊢⎕
Try it online!
Outputs 0 for still-life, 6 for oscillators, and 12 for ...
- 27k
14
votes
Minimally destroy CGCC in Game of Life
Score 8, 69 generations
This is what I promised for in the comment, but it got already beaten by Dingus...
I can't upload images right now, so I include a text-based initial configuration and the copy....
- 73.8k
14
votes
Keep PPCG running in Game of Life
2986 2320 1228 generations
I wrote a rudimentary Python script for Golly to generate random 5x10 patterns until it encountered one whose population was fixed, and whose bounding box was not too large (...
- 703
13
votes
Accepted
Count common Game of Life patterns
Haskell, 2417 bytes
This took quite a while and there are still a few bugs, but I got several tricks working so it was worth it.
Notes:
It only accepts the plaintext format, passed to STDIN
It takes ...
- 2,401
13
votes
Display the Hacker Logo
PNG, 105 100 bytes
(i.e. this image file)
Considering that HTML and other non-programming languages are allowed,
I was curious to see how much I could golf a plain browser-displayable image, to ...
- 281
13
votes
Accepted
12
votes
Display the Hacker Logo
R (130 119 113 bytes)
plot(c(2,4,6,4,6),c(2,2,2,6,4),an=F,ax=F,xli=(l=c(1,7)),yli=l,xaxs="i",yaxs="i",pch=16,cex=19);grid(3,lt=1);box()
- 231
11
votes
11
votes
10
votes
Change the rules of Life
MATL, 24 23 bytes
xx:"tt3Y6Z+1Gm<8M2Gmb*+
Inputs are:
Array with birth rule
Array with survival rule
Number of generations
Matrix with initial cell ...
- 104k
10
votes
Is it a still-life?
MATL, 42 38 31 29 bytes
2 bytes saved thanks to @Neil!
4thYaXJ4:"3Y6QZ+5:7mtJX=w]xvu
Input is a binary matrix. Output is
Still life: ...
- 104k
Only top scored, non community-wiki answers of a minimum length are eligible