Yep. It's similar to Martin's. Each pixel/channel takes a random walk based on the ones above and left of it, so it ends up making nice, streaky bands.
I've been playing with the color balance and randomness for like an hour now looking for just the right screenshot, but they all look decent. I think I'm gonna go with this one.
Tennis Tournament (Incomplete)
Please do not vote or comment yet.
Introduction
Insert tennis themed introduction here.
Game
Insert description of the tournament hierarchy, player seeding, and program flow.
Input
You will be passed the current set of matches. Matches will be comma (,) del...
There's a snake that moves through the grass at the right speed to make it's black and white stripes appear green
I'd like to make an image that is black and white from a distance but brightly coloured close up. I have a list of ideas though so probably won't get that far...
it is so easy to blow hours doing this. I hope nobody takes my blue post the wrong way; i'll probably delete it and upload a real entry, or else put a really realistic frame on it
Just keep posting - if people don't like it they won't vote for it. I can't see that it warrants a downvote - most people would reserve that for something that breaks the rules.
And you have gone to the trouble of getting exactly the right shade of blue...
and the exact proportions. hah. wait, we can have multiple entries? I just had a really cool idea to modify the abomination i just posted, so I'm working on that now
by the way, I would like your pentagon more with a different background, maybe grayscale. You could have the green and blue just call RD in the event that the pixel is 0, or something?
what am i saying, I can just mess with yours on my own
This will be a underhanded popularity-contest. Notes for sandbox: is there anything missing that I didn't catch? Also, would it be suitable to make a GitHub gist to check?
Print all multiples of 42 from 0 to n...imperfectly
Objective: Print all multiples of 42 from 0 to an arbitrary number n....
@EricTressler didn't sound rude at all - feedback is great. Yes green and blue could follow the pattern of red in the background for about 6 extra characters in each function. Or for 10 extra characters they could be mirror images of it in x or in y. The code is all there for anyone to use - feel free to experiment...
I liked it red for the contrast where it shows through the holes, but I could had in half the blue and green for a lighter red, or just blue for magenta. I might edit it if I can find an improvement that fits in 140 bytes...
Sorry, I should have been more specific. What is the purpose of scoring by upvotes minus downvotes, which only certain users can see, instead of total votes, which all users can see?
Programmin' Pac-Man
Setting
You play as Pac-Man. You want to collect pellets, fruit, and power pellets before anybody else, all while avoiding ghosts.
Rules
Every valid Pac-Man will be in a single maze. The player with the highest cumulative score after 10 games will win.
A game is over wh...
@G_Wilson Make a working program. Then optimise it. Try out all your ideas, because sometimes it's surprising what works and what doesn't, and keep your earlier versions and failed branches because sometimes a new idea combines really well with one you rejected earlier.
I have some small strings and a large string. I want to know if there's a non-overlapping concatenation of some set of the short strings that produces the long string, and if so which combination(s) it is. Is there a name for this combinatoric or backtracking problem/algorithm? e.g. "foo" and "obar" are substrings of "foobar", but you can't make "foobar" without the substrings overlapping.
@Sparr Could an algorithm that detects plagiarism be somewhat relevant? It sounds like this is the special case of the Rabin-Karp algorithm where the string is 100% plagiarized from the input set.
import Image#, ImageDraw, ImageFilter
import random
im = Image.new("RGB", (800, 600))
forest = im.load()
trh = [210]
for i in range(799): trh.append(trh[-1]+random.choice([-1,0,0,0,0,1]))
trc = (80, 148, 0)
for x,h in enumerate(trh):
for y in range(h):
forest[x, 599-y] = trc
im.save("forest.png")
While it wouldn't help much big-o style, you could eliminate a lot of combinations in the average case by comparing string length combinations and throwing out all the combinations that don't match the target length. Then with the resulting set check the actual characters.
Balanced Ternary Converter
Background
Most of us are familiar with a few bases for numbers, like decimal, binary, hexadecimal, and octal. One interesting base is called balanced ternary. It has three digits and each place is multiplied by the corresponding power of three. What makes it interest...
if you're into wave graphics though, I once solved the 2D wave equation on the GPU with WebGL to render it in real time (WITH correct reflection on arbitrary boundaries)
What does the Windows command "cd %0\.." do? I can't seem to Google %0 or "percent 0". I understand that "cd" changes directory and ".." moves up one parent, but the %0 is throwing me for a loop.
@Santhosh: %0 would be *how the current batch file was called*. That could be any of the following forms: abc.bat, abc (no .bat suffix), ..\..\abc.bat, d:\path\to\abc.bat, "e:\path with spaces\to\abc.bat" and probably some more.
Now, using %0 for further processing will not work in any case, si...
Navier stokes... heh. Programming puzzle: Accurately model the turbulence in this fluid system. Answer most closely matching what actually happens in my sink wins.
Certainly the wording wants to be in terms of Eulerian tilings rather than neighbourhood sizes, because the Cairo pentagonal tiling of this image can be reduced to a 6-regular tiling with holes which is not isomorphic to the hexagonal tiling. - Peter Taylor
---
Ya need to say it like where each trail visits all them edges 'xactly one time, 'cause that tiling like they got in Cairo with all them pen-ti-gones ain't too dissimilar from them ones with all the heck-si-gones. - Bubbah Taylor
When every morning starts with hot breakfast, every weekend with cattle, and every holiday with hunting trips, you develop a strong aversion to breakfast, hunting, and outdoors in general.
The arbitrary edge count of Voronoi diagrams creates an interesting mechanic for cellular automata as it creates the need to dynamically adjust the rule to the neighbor count, which can either be done by slicing or a different method entirely.
---
Them Vorneys have a bad landlord.
@MartinBüttner the animation you asked about while I was gone, I just output them all as png and opened the whole folder as a layered image in GIMP. Then just save as GIF
Questions aren't as easy as answers (for me at least). I've gotten 10+ votes for all of mine, though, so that's not bad. Still, less than a quarter of my rep is from Qs.
this seems worth a cross post... commented golfed fibonacci calculator in marbelous:
# calculates the nth fibonacci number, recursively
I0 I0 I0 .. # three copies of I0, call them A B C
-- S0 =0 O0 # decrement A, hold B for sync, return C if it's 0
S0 -- -- .. # hold A for sync, decrement B, decrement C
-- MB =0 ++ # decrement A, recurse with B, increment (then return) C if it's 0
MB .. S0 O0 # recurse with A, do nothing with B, release the sync if C made it this far
\\ O0 \/ .. # add A to B and return it, trash C
Well I'll definitely be posting a 5th answer once I get this output checker done
They are all very distinct - we both put extra afterthoughts into the same answer - only creating a new answer for genuinely new things, so I think that's fine
Reading about DEFCON reminded me of that time that my friends and I played a 2 v 2 game of Halo 2 in the back of two moving cars. We made it ten miles without disconnecting.
We also disassembled our rock band drums and hooked it up to a real drum set that never really worked because the vibrations triggered the buttons hundreds of time
@Rainbolt You also broke the paintball. Nobody cares for paintballs. :c
At the local paintball range, it's a bit of a tradition to set up paintball fights with your enemies, then freeze the paintballs before the match. Nasty stuff.
Tennis Tournament (Incomplete)
Please do not vote or comment yet.
Introduction
Insert tennis themed introduction here.
Game
Insert description of the tournament hierarchy, player seeding, and program flow.
Input
You will be passed the current set of matches. Matches will be comma (,) del...
This will be a underhanded popularity-contest. Notes for sandbox: is there anything missing that I didn't catch? Also, would it be suitable to make a GitHub gist to check?
Print all multiples of 42 from 0 to n...imperfectly
Objective: Print all multiples of 42 from 0 to an arbitrary number n....
Programmin' Pac-Man
Setting
You play as Pac-Man. You want to collect pellets, fruit, and power pellets before anybody else, all while avoiding ghosts.
Rules
Every valid Pac-Man will be in a single maze. The player with the highest cumulative score after 10 games will win.
A game is over wh...
Balanced Ternary Converter
Background
Most of us are familiar with a few bases for numbers, like decimal, binary, hexadecimal, and octal. One interesting base is called balanced ternary. It has three digits and each place is multiplied by the corresponding power of three. What makes it interest...
@Santhosh: %0 would be *how the current batch file was called*. That could be any of the following forms: abc.bat, abc (no .bat suffix), ..\..\abc.bat, d:\path\to\abc.bat, "e:\path with spaces\to\abc.bat" and probably some more.
Now, using %0 for further processing will not work in any case, si...
