Dweets awesomed by u/Odog8

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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tomxor

function u(t) {

R?w=128:c.width=w
for(T=S,S=C,C=T,n=0,i=2e4;j=--i/w|i%w*w;n+=~S[i+5]-~S[i-6])x.fillRect(i%w,j%w,R=frame&1,C[j]=R?n>33&n<59?n<46|C[j]:j&!t:n)

Feb 9 2020 1:38 PM UTC

}// 140/140

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#LargerThanLife #Automata Bugs Rule

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u/tomxor

The Larger Than Life "Bugs" rule R5,C0,M1,S34..58,B34..45,NM. You can introduce more entropy by adding spaces to the code (to restart) which causes i&1 to be combined with existing state in the rule's dead space.
u/tomxor

This uses a sliding window to efficiently compute the sum of arbitrary radi Moore neighbourhoods (i.e box blur kernels). It naturally wraps to the next line giving it a kind of twisted toroidal space, which takes less code and is more efficient since it is only necessary to initialise the sliding window once per dimension: O(2n+2r). The FPS is half of what is displayed since every other frame is used to sum the transposed sum of x.
u/tomxor

Other sized w must be a power of 2 and i must be at least w**2+r+1 (r=neighbourhood radius) to allow the sliding window to correctly initialise, otherwise a bad sum will propagate throughout the grid usually causing everything to die.
u/KilledByAPixel

👍 Thanks for the explanation!
u/tomxor

hmm the larger than necessary i seems to be introducing artifacts... change to i=w*w+6 if you want to see the pure rule.
u/katkip

Woow! I remember it from the The Powder Toy game

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Odog8

function u(t) {

c.width^=1
x.font="50px monospace"
x.fillText('('+(t%2>1?'<':'-')+(t%2>1?'• ':' •').repeat(40),0,540)

Feb 8 2020 2:45 AM UTC

}// 101/140

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pacman

u/katkip

#pacman #text

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Odog8

function u(t) {

Math.sqrt(x)
x**.5

Math.sqrt(x*c)
(x*c)**.5

Feb 3 2020 4:41 PM UTC

}// 44/140

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golfing tricks improved ;)

u/Xen

first vanished? how magical, you forgot the cubed root part ;)
u/Odog8

eh, who uses cube root ;/
u/Odog8

credit to u/Xen btw
u/Xen

cheers,, may just be an edge case somewhere for x**(1/3), i kinda wanna make one now ;-)

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Odog8

function u(t) {

eval(localStorage.Y)//㐄㮆㻷待䬰䔢徶往䔤待䬬鸍䲹岓䡗ꑴ떨䇝䳋韍뮽愍뮯㻢䈂䎔䈄䀺䇈䲿义䇔䬯㻢䈂䎔䈄䁋뮮鿉꤬肅鬤㻷䔷䓹䓹䁋鷻徱㻢䁋龋徱㻤䁋饋徵岔䍭龛뮮鿉꤬肅鬤㻢䎧䔤䎧䓹䓹䁋

Feb 1 2020 5:16 PM UTC

}// 95/140

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Planets! If this doesn't work view d/16213

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Odog8

function u(t) {

s=50;for(f=s;f--+s;)for(g=s;g--+s;)x.fillStyle=R(5e4*(1/(g*g+f*f)+1/((g-s*S(20*t))**2+(f-s*C(15*t))**2))),x.fillRect(10*g+1e3,10*f+600,s,s)

Jan 28 2020 1:48 PM UTC

}// 139/140

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metaballs!

u/Joachim

#metaballs

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corruptio

function u(t) {

t?x.fillRect(j%50*36,(j/50|0)*36,(v="򐉡󰘣󠱂򐐢󘑂򈑂󘑢򀑢󈒂񸒂󈒂񸒂󈒂񰒃󈒂񰑣󐒂񰑣󐓣𡱃󠑢񉁄󨙣󰘣󨩣󠚣󐛣󈗇𡊡𙆄𙀡򀒢𠰢𨑦𘑂𘑁񠰣𹂁𱂡򑐤𨗁𨑁񨑤𡈃𠳋󱸡󩆥􁁁𱏊򀖅򘠁".charCodeAt(i/2)>>i++%2*5&31)*36,i%2*36,j+=v):i=j=0

Jan 28 2020 3:01 AM UTC

}// 140/140

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50 x 28 Totoro #PixelArt

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u/corruptio

Uses run-length encoding to get more pixels.
u/Xen

very nice!!
u/corruptio

hmm, can save 4 chars in decoder to make it a 50x30 image
u/corruptio

t?x.fillRect(j%50*32,j/50<<5,(v="𝀳𯁱𦠢𤀡𦐢𣰢𦐣𣠣𥰤𣐤𥰤𣐤𥰤𣐤𥰤𫀤𥰤𫀣𦀤𫀣𮀣񈱢𘡚𰲇𘡻𜱼𤑻𜱺𝑸𝱗𰒎𘢕𰒌𘐡𣡥𠠡񀰣𠐢𘑢𪢁𙒄𙂥𴀡𘰮𘰢𲲃𨡰񨣦🂑𾲍🢂񡀾𻡌𜓬🰀".charCodeAt(i/2)>>i%2*5&31)*32,i++%2*32,j+=v):i=j=0
u/katkip

Awesome!
u/aleamb

fucking amazing!
u/tomxor

Do Ponyo! :)
u/KilledByAPixel

☂

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KilledByAPixel

remix of d/15354 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𩡯𬠨𪰽𜀻𪰼𝰶𞀻𮀮𩡩𫁬𤡥𨱴𚁩𚠲𜀬𪠿𪠭𝀿𥀪𪠫𥀪𠰨𬐯𞐩𛱪𚰵𞐪𠰨𬐯𝀩𛱪𞡔𚡪𛐴𜀰𚰳𞐪𚁓𚁱𚐪𚠴𚐫𜰹𞐪𚁓𚁱𛰳𜠩🀮𝰩𞠰𛁔🐱𝀳𛁪𛐴🰲𩐳𞠱𩐳𚰷𞐹𚡃𚁱𛰱𝠩𛁸𛡦𪑬𫁓𭁹𫁥👒𚁪𚡔𙐲𜐴𛁪𚠽𜠵𛁔𛑪𚐩𚑩👫🠾𜰬𪠽𪰫𚰥𞀬𬐽𪐫𭀪𪠪𚠳𯀰`.replace(/u../g,'')))

Jan 24 2020 8:34 PM UTC

}// 140/140

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Old #Castle Drive

u/Xen

nice! #Parallax
u/katkip

woww
u/katkip

#genius #compressed
u/sigveseb

fantastic!
u/lionleaf

Insane!

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yonatan

remix of d/10782 by u/yonatan

function u(t) {

for(i=c.width=99;i--;)for(k=j=56;j-->-k;)x.fillRect(i,j/2+28,1/t,j>0?(S(j*j+i/j-t*7)+C(j**5-i/j*6+t)**3)*j/k:Math.hypot(j+t*9,i-k)/300/t)

Jan 20 2020 6:48 PM UTC

}// 137/140

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sunrise

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u/denzen

Amazing!
u/tomxor

Holly **** ! or a nuke on the horizon :P
u/aleamb

Brutal!!!
u/aleamb

#sunrise #sea #landscape #sun
u/13thptr

thought about a nuke too x) gret job
u/13thptr

*great
u/katkip

!! awesome
u/Leodude123

Coll
u/Leodude123

Sorry I misspelled that
u/Leodude123

I meant cool!
u/eduft15

nice man!

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Odog8

function u(t) {

onmousedown=e=>a=[e.clientX,e.clientY];x.fillRect(a[0],a[1],10,10)

Jan 11 2020 9:37 PM UTC

}// 66/140

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Odog8

function u(t) {

n1="120921891278931"
n2="213901823123721"

Jan 11 2020 2:41 AM UTC

}// 42/140

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