Dweets awesomed by u/mildlybean

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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rodrigo.siqueira

remix of d/20812 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,c.width|=f=g=>i*S(i/999-t)*g(i*i);i--;x.fillRect(960+f(S),540+f(C),5,5))x.fillStyle=`hsl(${i/6},80%,50%`,c.style='filter:invert('

Dec 31 2020 9:46 PM UTC

}// 139/140

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Color explosion

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mildlybean

function u(t) {

c.width|=t+=99;for(i=99;i--;x.lineTo(960+540*S(t+t*i/98),540+540*C(t-t*i/99)))x.moveTo(960,540);x.strokeStyle=`hsl(${t*9} 99%33%`;x.stroke()

Dec 19 2020 11:33 PM UTC

}// 140/140

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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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Steckerleiste

function u(t) {

for(z=6.3*t,v=99*(C(z/9)+1),x.fillStyle=`${R(v,v,v,50)}`,j=0;j++<209;)i=j/7<<4,n=z/9+j%7*.9-i/250,x.fillRect(S(n)*i+960,C(n)*i+540,30,20);

Dec 15 2020 11:20 PM UTC

}// 138/140

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Blinky Wheel

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ntsutae

function u(t) {

for(t*=30,c.width=X=128;X--;)for(Y=72;Y--;)(t+X^t-Y)%41<Y/4&&x.fillRect(X,Y,1,1)

Dec 13 2020 9:38 PM UTC

}// 80/140

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u/magna

Fantastic!

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pavel

remix of d/15161 by u/KilledByAPixel

function u(t) {

for(c.width|=j=9;j--;x.fill())for(x.beginPath(i=6);i--;x.arc(960+r*C(b=.785*(2*j-o)-t),540+r*S(b),120,a=i/.96-o*2*t,a))o=j>4,r=o?223:j&&315

Nov 10 2020 11:11 PM UTC

}// 139/140

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#uncompressed #symmetry

u/Xen

nice!
u/donbright

how.....

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dethe

function u(t) {

c.width=1920 // clear the canvas
p=Math.PI
h=(n,f)=>n+f(i*p/180)*n/2+f(t+i)*n/3
for(i=0;i<360;i++)
x.fillRect(h(960,S,C),h(540,C,S),25,25)

Oct 20 2020 5:06 AM UTC

}// 138/140

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First dweet in ages, but I like it

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rep_movsd

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁣𛡷𪑤𭁨𯀽𢰽𞐹𛁥🐨𡀬𠠬𠰩🐾𩑬𫁩𬁳𩐨𢰪𞐫𡀪𢰪𛐨𠐥𝠼𜰿𜐺𛐱𚐬𝐴𜀬𡐽𥰭𛐪𢰬𡐭𢰬𜀬𠐫𠠬𠐫𠰬𠠩𛁚🐮𜰬𠐽𚁴𙐽𦠩𞱁🀶𚱴𞱁𚰽𦠬𬱴𬡯𪱥𚀩𚑢𩑧𪑮𤁡𭁨𚁗🐴𚐬𩐨𜐬𦠬𜀬𩐨𜀬𜀬𦠬𨱬𫱳𩑐𨑴𪀨𩐨𜐬𜀬𦠩𛁥𚀰𛁚𛀰𚐬𥰽𝐩𚐩`.replace(/u../g,'')))

Oct 15 2020 11:09 AM UTC

}// 140/140

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#tesseract #torus

u/Xen

Nice!
u/magna

canvas.getContext('4d')
u/jellyedwards

Better than my attempt! https://www.dwitter.net/d/19690

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ntsutae

remix of d/19818 by u/rodrigo.siqueira

function u(t) {

f=(X,Y,n=0)=>X*X+Y*Y>4?n:f(2*X*Y-2/3,Y*Y-X*X,n+2);for(i=w=2e3;i--;x.fillRect(i,t*60,1,n))n=f(i/w,t/45),x.fillStyle=R(g=n&2?255-n:0,g,g)

Oct 13 2020 6:05 PM UTC

}// 135/140

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Zebra Spiral #julia #fractal

u/hells-fargo

GODDAMN!!!! niceee

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anotherkitten

function u(t) {

c.width|=0
for(j=25;j--;)for(i=13;i--;)x.fill(p=new Path2D(),p.arc(40+80*j,80+80*i,(P=6+6*C(((j-12)**2+(i-6)**2)**.8+t))*S(t*5)+30-P,0,8))

Sep 28 2020 4:32 PM UTC

}// 138/140

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