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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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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WasifBoomz

function u(t) {

c.width=1920
x.lineWidth=30
for(i=0;i<50;i++)
x.ellipse(400+i*100+S(t)*300-1000,800,250,650,0,0,9)
x.stroke()

Sep 3 2019 2:03 PM UTC

}// 110/140

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WasifBoomz

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<500;i++)
x.fillRect(400+i*100+S(t)*300,(400*t*10*Math.random())/20,50,200) // draw 50x200 rects

Sep 3 2019 1:48 PM UTC

}// 138/140

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u/ben221199

#default

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katkip

remix of d/15558 by u/katkip

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𮱘👙🐰𞱰👛𧐻𩡯𬠨𪐽𝐻𪐭𛐻𚑰𛡰𭑳𪀨𦰹𝠰𚱓𚁑🐶𛠲𞀯𝐪𪐩𚠴𜀰𛀵𝀰𚱃𚁑𚐪𝀰𜁝𚑽𞱦𫱲𚁩🐹𞐹𞱩𛐭𞰩𮀮𩡩𫁬𤡥𨱴𚁘𚠱𛠵𛁙𚠱𛠵𛀲𛀲𚐬𦀽𚁘𚱰𦰨𬠽𣑡𭁨𛡦𫁯𫱲𚁍𨑴𪀮𬡡𫡤𫱭𚀩𚠵𚐩𧑛𜁝𚐯𜠮𝐬𦐽𚁙𚱰𦱲𧑛𜑝𚐯𜠮𝐻`.replace(/u../g,'')))

Sep 3 2019 9:14 AM UTC

}// 136/140

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if(!t){X=Y=0;p=[];for(i=5;i--;)p.push([960+S(Q=6.28/5*i)*400,540+C(Q)*400])};for(i=999;i--;)x.fillRect(X*1.5,Y*1.5,2,2),X=(X+p[(r=Math.floor(Math.random()*5))][0])/2.5,Y=(Y+p[r][1])/2.5 #chaosgame #fractal

u/rodrigo.siqueira

#uncompressed (139 characters): X=Y=730;p=[];for(i=5;i--;)p[i]=([X+X+X*S(i*5),X+C(i*5.03)*X]);for(i=X;i--;x.fillRect(X,Y,2,2))X=(X+p[r=~~(X*t%5)][0])/2.5,Y=(Y+p[r][1])/2.5
u/katkip

nice

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django

function u(t) {

w=c.width*=1;w/=2;x.beginPath();x.lineWidth=3
for(i=0;i<1000;i++)
x.lineTo(w+0.9*w*(S(.1*2.5*i/10+t)),1.1*i+30*C(t+i/11))
x.stroke()

Sep 3 2019 4:16 AM UTC

}// 132/140

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noodle

u/katkip

yummy
u/aleamb

nice!

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username

remix of d/11703 by u/stellartux

function u(t) {

with(x){c.width^=0
font=`1in'`
translate(z=999,v=99)
for(i=0;i<z;i+=v)for(j=v;j<z;j+=v)rotate(C(z)),fillText('hi dwitter'+i,i,j+v*S(t+i*v))}

Sep 2 2019 11:11 PM UTC

}// 140/140

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look at the dweet smh

u/username

#randomremix no 25
u/username

#randomremix no 26

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mildlybean

function u(t) {

w=[[99,30,8],[3,50,1],[6,9,-1]];for(c.width|=i=1919;i--;x.fillRect(i,540+y,15,15))y=0,w.forEach(function(m){y+=m[1]*S(t*m[2]+i*m[0]/305)*5})

Sep 2 2019 7:38 PM UTC

}// 140/140

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Sum of three sine waves. By modifying w, you can try any combination of sine waves.

u/mildlybean

w=[[3,25,3],[6,25,2],[9,25,1]] is cool
u/mildlybean

So is w=[[4,20,-2],[2,40,2]]

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UnacceptableUse

remix of d/8829 by u/UnacceptableUse

function u(t) {

x.beginPath(c.width=d=100);x.fillRect(0,0,d,d);for(i=35;i--;)x.beginPath(x.strokeStyle=R(0,i%2*d,d)),x.arc(d,9,t*i%d,0,7),x.stroke();

Sep 2 2019 2:40 PM UTC

}// 133/140

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rodrigo.siqueira

remix of d/12319 by u/rodrigo.siqueira

function u(t) {

c.width|=X=Y=Z=1
for(i=3e3;i--;x.fillRect(500*(t%6.2-i%3-X*C(t*9)/33),800-i%3*90-(1.3+S(t))*Z*6,5,5))Z+=(X*Y-Z)/39,X+=(Y-X)/9,Y+=X*(27-Z)/97

Sep 2 2019 2:05 PM UTC

}// 140/140

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Three Lorenz Butterflies #lorenz #attractor #butterfly

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UnacceptableUse

remix of d/15605 by u/UnacceptableUse

function u(t) {

x.fillStyle=R(0,0,0,.5);x.fillRect(0,0,1e4,1e4);c=300;a=C(t)*c;b=T(t)*c;x.fillStyle=R(c,c-a,c-b,.5);for(i=0;i<b;i++)x.fillRect(b|i,b^i,5,c);

Sep 2 2019 2:00 PM UTC

}// 140/140

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UnacceptableUse

remix of d/15604 by u/UnacceptableUse

function u(t) {

c=300
a=C(t)*c
b=T(t)*c
d=255
x.fillStyle=R(d,d-a,d-b,.5)
x.fillRect(a,b,5,c) 
x.rotate(S(t))

Sep 2 2019 1:30 PM UTC

}// 94/140

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