Dweets awesomed by u/saschavoid

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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alien

function u(t) {

w=c.width
x.translate(w/2+t*200,w/4)
x.rotate(frame)
x.arc(S(w/t**0.5),C(w/t),10+frame*5,0,2*Math.PI)
x.stroke()
x.resetTransform()

Jul 2 2017 9:38 AM UTC

}// 132/140

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u/Polyducks

A tunnel!

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the_yuhanna

function u(t) {

x.font='450px s'
x.fillText('Fuck you',100,600)
x.transform(1,0,0,1.02,0,-10)
x.fillStyle=`hsla(${867*t},80%,50%,${.004**t}`

Jun 24 2017 8:14 AM UTC

}// 124/140

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MrAndroid

remix of d/2740 by u/MrAndroid

function u(t) {

a=1920;b=a*9/16;c.width=a;for(i=0;i<40;i++){x.beginPath();x.arc(a*S(t*i/3)/i+a/2,b*C(t*i/2)/i+b/2,10,0,7,false);x.fill();x.stroke();}

May 16 2017 7:09 PM UTC

}// 133/140

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nystrand

remix of d/2727 by u/joeytwiddle

function u(t) {

c.width|=p=(X,Y=X,S=X,D=16,r=_=>C(t+=S*D+t/8e6),k=_=>p(X+S*r(),Y+S*r()/3,S*.8,D-1))=>D&&x.fillRect(X,Y,S,S,x.globalAlpha=.01)&k()&k();p(580)

May 16 2017 10:12 AM UTC

}// 140/140

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u/joeytwiddle

Thank you for this :)
u/magna

WOW
u/donbright

damn
u/joeytwiddle

I learned 5 different tricks from your golfing here!
u/iverjo

#clouds
u/jdspugh

Amazing!

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the_yuhanna

function u(t) {

 for(c.width|=a=70;--a;x.arc(500+S(G+t)*200,500+C(t+G*3)*100,a%50*70,20,6.2832))x.moveTo(G=a/6|0,0) 
x.fill('evenodd')

May 15 2017 6:39 PM UTC

}// 118/140

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keithclark

function u(t) {

for(c.width^=0,x.globalCompositeOperation='xor',a=50;--a;x.arc(960+S(G+t)*400,520+C(t+G*3)*400,a%25*70,0,7),x.beginPath(x.fill()))G=a/25|0

May 11 2017 12:16 AM UTC

}// 138/140

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u/donbright

for slower machines... for(c.width=320,x.globalCompositeOperation='xor',a=50;--a;x.arc(160+S(G+t)*99,100+C(t+G*3)*99,a%25*20,0,7),x.beginPath(x.fill()))G=a/25|0

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@.+-_

function u(t) {

c.width^=0;x.rotate(0.4);for(i=0;i<50;i++){x.fillStyle=R(S(i+t)*255,255*S((t/10)),128,0.7);x.fillRect(S(i*(t/10))*500, i*100-600,2e3,200)}

May 10 2017 4:11 AM UTC

}// 138/140

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u/sigveseb

Sweet colors

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New_Core

function u(t) {

for(i=84;i--;)x.fillStyle='hsl('+i*t/9+',99%,50%)',x.rotate(.5173),x.translate(150,-540),x.fillRect(-600+i,-i*11,i*18,i*20)

May 7 2017 7:25 PM UTC

}// 123/140

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lol, Dont look at it to long.. you'll go crazy! ;)

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cagr30

function u(t) {

c.width^=0;for(i=9;i<2e3;i+=3)s=13/(9.2-(t+i/29)%9),x.beginPath(),j=i*7+S(i*4+t+S(t)),x.lineWidth=s*s,x.arc(960,640,s*92,j,j+.1),x.stroke()

May 7 2017 6:22 PM UTC

}// 139/140

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cagr30

function u(t) {

c.width^=0;for(i=9;i<2e3;i+=7)s=13/(9.2-(t+i/29)%9),x.beginPath(),j=i*7+S(i*4+t+S(t)),x.lineWidth=s*s,x.arc(960,640,s*92,j,j+.1),x.stroke()

May 7 2017 6:22 PM UTC

}// 139/140

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