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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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Cloud

function u(t) {

c.width|=0
x.lineWidth=8
for(i=0;i<5;i++){
x.lineTo(i*200+((t*10-i*2)*20+C(-t*10)*40), (S(t*10-i*2)*80+500))
}
x.stroke()

Jan 31 2020 5:20 PM UTC

}// 121/140

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🐛

u/tomxor

Snake Bot !

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xem

function u(t) {

for(n=.5,i=9e3;n=t/4*n*(1-n),i--;)i<300&&x.fillRect(t*99,1e3-n*1e3,2,2)

Jan 31 2020 4:44 PM UTC

}// 71/140

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Logistic map (to scale)

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katkip

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𮱘👮𩑷𘁁𭑤𪑯𠱯𫡴𩑸𭀨𚐻𫰽𦀮𨱲𩑡𭁥𣱳𨱩𫁬𨑴𫱲𚀩𞱧👘𛡣𬡥𨑴𩑇𨑩𫠨𚐻𫰮𩡲𩑱𭑥𫡣𮐮𭡡𫁵𩐽𝐲𞀻𩰮𩱡𪑮𛡶𨑬𭑥🐮𜀱𞱯𛡣𫱮𫡥𨱴𚁧𚐮𨱯𫡮𩑣𭀨𦀮𩁥𬱴𪑮𨑴𪑯𫠩𞱯𛡳𭁡𬡴𚀩𞱽𒠠`.replace(/uD./g,'')));

Jan 31 2020 3:50 PM UTC

}// 122/140

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#audio that will make you smile (unconsciously)

u/katkip

#spoiler #annoying
u/Xen

i had 26 things at once and actually wondered why furiously stabbing SPACE didn't stop the noise on my youtube tab......

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Xen

remix of d/17424 by u/yodacoder

function u(t) {

//for(t+=i=w=c.width^=9,x.fillRect(0,0,w,w);i--;x.strokeStyle=R(t,t%99)
)x.lineTo(w/2+C(t*i/5)*5*i,w/4+S(t*i/5)*5*i);
x.stroke()

Jan 31 2020 12:05 PM UTC

}// 128/140

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photosensitive warning!

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rodrigo.siqueira

remix of d/17414 by u/rodrigo.siqueira

function u(t) {

for(i=1e3;i--;x.fillStyle=R(Y*Z,Y,X,.05))x.fillRect((X=S(i**8)*i)*1.3+860,(Y=C(t/5+i/99)*600)+500,Z=200,Z)

Jan 31 2020 10:48 AM UTC

}// 106/140

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Thermodynamic balance #abstract #colors #art

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Cloud

function u(t) {

c.width|=0
for(i=0;i<80;i++){
z=S(i/12-t*3)*100
x.fillRect(960-(150+i*12)-z, i*10+400+C(t*14)*i, 300-z/3+i*24, 20)
}

Jan 31 2020 9:42 AM UTC

}// 116/140

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Old town road :) #mobile

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yodacoder

remix of d/6467 by u/41407

function u(t) {

t*=9
w=c.width|=0
x.fillRect(0,0,w,w)
x.strokeStyle=R(w,5*C(t),w*S(t))
for(i=w/1;i--;)x.lineTo(w/2+C(t*i/5)*5*i,w/4+S(t*i/5)*5*i)
x.stroke()

Jan 31 2020 8:22 AM UTC

}// 140/140

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👈

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yodacoder

function u(t) {

for(c.width|=i=9,t*=3+S(0);i--;)x.beginPath(),x.arc(960+C(t-i*5+t)*(z=(i==0?0:40+t*10-i*22)),540+S(i*2+t)*z,i==0?50:20,0,7),x.fill()

Jan 31 2020 8:15 AM UTC

}// 132/140

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yodacoder

function u(t) {

with(x)for(c.width|=j=1e3,scale(5,3);j--;j%5?arc(109,52+j/5,j>40*t?99:36,a=t-j/.6396,a):beginPath(stroke()))setLineDash([j%90>59?0:1])

Jan 31 2020 8:13 AM UTC

}// 134/140

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KilledByAPixel

function u(t) {

with(x)for(c.width|=i=0,translate(960,540);i<1e3;rotate(i++?1/156:t))fillStyle=`hsl(${i} ${z=S(i/64)**3*99}%${79-z/4}%`,fillRect(0,99,4,399)

Jan 31 2020 7:04 AM UTC

}// 140/140

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DVD 📀