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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.

Theme challenge of the month: #fracture

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lars-erik

remix of d/22464 by u/lars-erik

function u(t) {

c.width=1920;t*=.01;r=3.14/180;x.translate(960,512);
for(i=0;i<1440;i+=15.496)x.lineTo(C(r*(t+i)**2)*i,S(r*(t+i)**2)*i);
x.stroke()

Apr 13 2021 8:08 AM UTC

}// 131/140

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More newb spiraling fun. 😇

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lars-erik

function u(t) {

c.width=1920;t*=-5;r=3.14/180;x.translate(960,512);
for(i=0;i<2880;i+=5)x.lineTo(C(r*(t+i)**1.3)*i/2,S(r*(t+i)**1.3)*i/2);
x.stroke()

Apr 13 2021 8:00 AM UTC

}// 133/140

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Spiraling fun (newb)

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veubeke

remix of d/22448 by u/taupelink

function u(t) {

for(i=k=720;--i;x.fillText('🦖',k+X*C(Y),k+X*S(Y),q>>t))f=i*t,X=f*f%2e3,Y=X*f%7,x.fillStyle=R(q=i*S(Y%S((X/k)**S(Y*6)))/5,X%q,X*S(q/k-Y),.2)

Apr 13 2021 6:44 AM UTC

}// 139/140

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🦖 patterns

u/veubeke

My son always asks me to replace everything on dwitter with 🦖 and this one has some nice patterns.

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Sny_de_Treves

function u(t) {

c.width=(a=960)*2
x.moveTo(a,b=540)
for(i=600;i;)x.bezierCurveTo(S(d=S(i)+t)*a+a,C(C(i)+t)*b/2,S(C(i-=6)-t)*a+a,C(d)*b/2+b*2,a,b)
x.stroke()

Apr 12 2021 11:20 PM UTC

}// 140/140

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#fracture in space

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danny@hille.dk

remix of d/22460 by u/danny@hille.dk

function u(t) {

for(Y=t*60,X=480;X--;x.fillRect(X*4,1064,4,16))x.fillStyle=`hsl(${222*S(C(t-X/32)-t)} 99%50%`
x.drawImage(c,-10,-2,1940,1066)

Apr 12 2021 11:05 PM UTC

}// 126/140

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danny@hille.dk

remix of d/22459 by u/danny@hille.dk

function u(t) {

for(Y=t*60,X=480;X--;x.fillRect(X*4,0,4,4))x.fillStyle=`hsl(${99*S(C(t-X/33)-Y/66+S(X/(22+C(t/9)+S(X/9+Y/9))))} 99%50%`
x.drawImage(c,0,4)

Apr 12 2021 10:44 PM UTC

}// 139/140

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danny@hille.dk

remix of d/22449 by u/danny@hille.dk

function u(t) {

for(i=2304,c.width=64;i--;x.fillRect(X,Y,1,1))x.fillStyle=R(o=160*C(t+(Y=i>>6)/5),99+o*C(((X=i%64)/6+t)+C(Y/3-C(t)*6)),-o)

Apr 12 2021 10:22 PM UTC

}// 122/140

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mxfh

remix of d/22456 by u/mxfh

function u(t) {

d=x.getImageData(0,0,w=c.width=128,w)
d.data.forEach((v,i,A)=>A[i]=(i%w>>2^(i>>9)+t*30)%(3+i%4)*w)
x.putImageData(d,0,0)

Apr 12 2021 10:09 PM UTC

}// 120/140

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rodrigo.siqueira

remix of d/22450 by u/Xen

function u(t) {

for(x.fillRect(0,0,z=i=2e3,i);i--;x.font="2in'")x.fillStyle=R(i,i/3,x.fillText(String.fromCharCode(12449+i%99),480*(t%4),(i*i+t*i)%z),i+.1)

Apr 12 2021 9:22 PM UTC

}// 139/140

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Samurai's fire log #fire

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mxfh

remix of d/22439 by u/mxfh

function u(t) {

for(d=x.getImageData(I=0,0,i=w=c.width=256,w);i--;)for(j=w;j--;I+=4)d.data.set([(f=i^j)%w*T(f+t*30),f%9*w,j,w],I)
x.putImageData(d,0,0)

Apr 12 2021 5:35 PM UTC

}// 135/140

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