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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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mxfh

remix of d/24011 by u/KilledByAPixel

function u(t) {

for(w=710,r=113,τ=w/r,c.width|=i=0;i<w;i+=τ/3+S(t)/20)x.arc(w,w,i**(-.7+T(t)/9)*1e4,a=i+t,a+τ/4)
x.stroke()

Oct 7 2021 4:10 PM UTC

}// 107/140

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#tunnel #cavern

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tactical_retard

function u(t) {

x[f="fillRect"](0,0,10,10)
x[f](10,0,10,10)
x[f](0,10,10,10)
x.drawImage(c,10*2**frame,0)
x.drawImage(c,-10*2**frame,10*2**frame)

Oct 7 2021 4:07 PM UTC

}// 129/140

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#drawimage #sierpinski

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ArthurThuczsec

remix of d/24008 by u/KilledByAPixel

function u(t) {

for(X=t&&X+r*25,i=h=6+X%4*C(t*5)<<6;--i;x.fillRect(X-r*i/8,600+(r*8&3?i-h:h-i),i/4,r))r=1+S(i^X)

Oct 7 2021 4:07 PM UTC

}// 96/140

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u/KilledByAPixel

it is a bit smaller with out the sky/water :)

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ciaccodavide

remix of d/24024 by u/ciaccodavide

function u(t) {

for(i=c.width|=0;i--;)a=(9+t/19999)*i,x.lineTo(960+S(a)*400,540+C(a)*400)
x.stroke()

Oct 7 2021 11:49 AM UTC

}// 84/140

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『O͓̽』

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ciaccodavide

remix of d/24023 by u/ciaccodavide

function u(t) {

for(i=c.width|=0;i--;)a=(S(t)+45)*i,x.lineTo(960+S(a)*400,540+C(i-a)*400)
x.stroke()

Oct 7 2021 11:45 AM UTC

}// 84/140

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ciaccodavide

remix of d/24022 by u/ciaccodavide

function u(t) {

l=30
for(i=c.width|=0;i--;)a=(S(t)+45)*i/l,x.lineTo(960+S(a)*400,540+C(i/l-a)*400)
x.stroke()

Oct 7 2021 11:44 AM UTC

}// 93/140

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uncontainable qbe

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ciaccodavide

remix of d/23998 by u/KilledByAPixel

function u(t) {

l=90
for(i=c.width|=0;i--;)a=t*i/l,x.lineTo(960+S(a)*400,540+C(i/l-a)*400)
x.stroke()

Oct 7 2021 11:43 AM UTC

}// 85/140

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magna

remix of d/24020 by u/magna

function u(t) {

(A=t%1)<.1&&(c.width|=0)
w=1920
h=1080
Z=S(t)+3
for(i=w;--i;x.fillRect(i-w/2,-h/2,1,T(i)*h))x.setTransform(k=C(A)*Z,z=S(A)*Z,-z,k,w/2,h/2)

Oct 7 2021 5:10 AM UTC

}// 138/140

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magna

remix of d/24019 by u/magna

function u(t) {

w=c.width|=0
h=1080
A=S(t/5)+2
Z=S(t/7)+3
x.setTransform(k=C(A)*Z,z=S(A)*Z,-z,k,w/2,h/2)
for(i=w;--i;)x.fillRect(i-w/2,-h/2,1,S(i+Z-A)**2*h)

Oct 7 2021 4:57 AM UTC

}// 140/140

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magna

remix of d/24018 by u/magna

function u(t) {

w=c.width|=0
for(i=w;--i;)x.fillRect(i,0,1,S(i+t/2)**2*1080)

Oct 7 2021 4:28 AM UTC

}// 60/140

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Playing with lines