Dweets awesomed by u/OlegSchwann

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.

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Current theme challenge: #Opposites

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veubeke

function u(t) {

(onclick=e=>{for(c.width=i=136;i--;x.fillText('⚪⚫'[x[i]=((i%5-(e.x>>6))**2+(Y-(e.y>>6))**2<2)^x[i]^i&!t],i%5*16,11+Y*16))Y=i/5|0})({x:1e3})

Mar 23 2021 5:11 PM UTC

}// 139/140

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Lights Out (with help from u/Xen)

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u/veubeke

Click to toggle lights on/off. Turn off all lights to win.
u/erin

#game #interactive
u/KilledByAPixel

nice work!
u/Xen

love it!
u/Qwitter

Awesome!
u/rodrigo.siqueira

I won 🏆 the game today! (Yesterday I tried but I couldn't win the game)
u/aleamb

great!
u/RubyPiec

gg
u/vain

OMG - Its a game - and not just only a pattern. So cool !!

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KilledByAPixel

remix of d/11415 by u/metamero

function u(t) {

c.before`🔥`

Mar 1 2021 10:42 PM UTC

}// 11/140

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#fire

u/tomxor

Wait what? such a strange function, I can't find any docs
u/danny@hille.dk

https://developer.mozilla.org/en-US/docs/Web…

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jwc

function u(t) {

for(c.width|=i=q=r=s=.1;i<t;b=4*i/t,x.fillRect(960+16*(q*C(t)+s*S(t)),540+20*r,b,b),i+=.01)o=r,r+=(q*(28-s)-r)/50,s+=(q*o-2*s)/50,q+=(o-q)/5

Dec 24 2020 10:17 PM UTC

}// 140/140

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Rotating Lorenz Attractor

u/jwc

Deleted my previous attempt and replaced it with this instead because I found an obvious savings that allowed me to improve rect size. If you can save 5 chars, you can replace s*S(t) with (s-28)*S(t) to center the rotation. Alternatively, if you can save one char, you can remove b, make the last two args of fillRect …,4*i/t,4), and use the previous centering method with a small concession to the rect shape.
u/magna

Done! d/21062
u/magna

The key was replacing (q*o-2*s)/50 with q*o/50-s/25
u/jwc

Nice!!

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ciaccodavide

remix of d/21053 by u/ciaccodavide

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼👩🐹𞐻𪐭𛐻𚑸𛡦𪑬𫁒𩑣𭀨𪐪𜐹𛀱𩐳𛀹𛀭𥡛𪑝𚐊𭱨𪑬𩐨𥡛𤁝🀽𥡛𤀫𜑝𚑐𚰫𒡶👖𦱐𚰱𧐊𥡛𤀫𜑝👖𦱐𧐬𥡛𤁝👶𛁐🐰`.replace(/u../g,'')))
}{V=[];for(i=99;i--;)V[i]=i**i%693;P=0

Dec 22 2020 11:09 PM UTC

}// 135/140

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Faster Slow Bubble #Sort Lines

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ciaccodavide

remix of d/21042 by u/SzymonPL188

function u(t) {

}{document.querySelector("body").innerHTML = "<div contenteditable=\"true\"><strong>You</strong> <br>can edit <h1>html</h1></div>";

Dec 21 2020 1:48 PM UTC

}// 131/140

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Now you can edit the edited HTML (click on the text and write something else)

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KilledByAPixel

function u(t) {

for(T[2931]=i=6001;i--;T[i]&!(T[d+=i]|T[d+e]|T[d-e])&&x.fillRect(i%99*20,i/5,21,T[d]=21))d=(Math.random(e=1)*4|0)*2-1,d>1?d=(d-4)*99:e=99

Dec 20 2020 6:09 AM UTC

}// 137/140

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Maze Growth

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u/Xen

nice!
u/rodrigo.siqueira

I was not able to remix because it's a self-destructive code that can run only once.
u/pavel

Use u instead of T to store the data. u does not persist between edits.
u/KilledByAPixel

ah thanks pavel, good call
u/akx

This reminds me of an algorithm I discovered in 2012: https://akx.github.io/spacefill/spacefill.ht…
u/rodrigo.siqueira

It reminds me of the brain's synapse formation process (synaptogenesis) and neural embryogenesis. May be a similar algorithm (but in 3D or in higher dimensions) could be used in the simulation of stochastic neural networks.

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mildlybean

function u(t) {

c.width|=t?onmousedown=e=>{X=e.x*3;Y=e.y*3}:C=U=0;x.fillRect(X,Y,99,99);X+=C;Y+=U;x.fill(x.arc(960,540,99,0,7));C+=(960-X)/99;U+=(540-Y)/99

Dec 19 2020 6:26 PM UTC

}// 139/140

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Click on the canvas to move the square. It keeps its velocity when it moves, which leads to some interesting orbits

u/Xen

very nicely done

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anotherkitten

function u(t) {

x.fillStyle="#daf1"
x.fillRect(0,0,2e3,2e3)
for(i=799|0;i--;)x.arc(960+S(t+i)*200,540+C(t+i)*200,300,I=t+i/14,I)
x.beginPath(x.stroke())

Dec 18 2020 6:03 PM UTC

}// 136/140

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u/Xen

smooth!

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neimad

remix of d/21012 by u/pavel

function u(t) {

with(x)for(fillRect(i=-710,i,i*=-2,i);i--;clearRect(30+C(t)*9*T(a=i+S(t)),2,w=T(a),w>C(t)*-2))setTransform(16,0,0,16,960,540),rotate(i/226)

Dec 17 2020 5:56 AM UTC

}// 139/140

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pavel

remix of d/21012 by u/pavel

function u(t) {

with(x)for(c.width|=i=710;i--;beginPath(fill(ellipse(40+18*C(a=++t%3.1416),0,w=S(a),!rotate(i*49+w/3),a,0,7))))setTransform(9,0,0,9,960,540)

Dec 17 2020 3:03 AM UTC

}// 140/140

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Torus Study #2

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