Random dweets | Dwitter

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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Current theme challenge: #Food

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tavurth

function u(t) {

c.width = 1920;

for (let i = 0, m = 70; i < m; i += 1) {
  x.fillRect(S(t + i) * 500 * C(t) + 960, (C(t + i) + 1) * 500, m, m);
}

Mar 9 2020 8:14 AM UTC

}// 131/140

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First

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KilledByAPixel

remix of d/25693 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󭽩󭍨󚍸󚝻󩭯󬬨󨭥󩽩󫭐󨝴󪌨󪌽󪜽󜭥󝌩󛍙󟜶󜌰󚽴󚬶󞌰󞽩󛜭󞽳󪍡󩍯󭽂󫍵󬬽󜼹󚝬󪝮󩝔󫼨󪜬󪜿󭌿󦜫󟝃󚍩󚬪󜼪󭌩󞬰󞭨󚜊󭍼󯍡󬭣󚌶󜌰󛌲󝜰󛌱󝬰󛍾󫝯󭭥󥍯󚌰󛌰󚜬󞜩󒭳󪍡󩍯󭽃󫽬󫽲󟝒󚍦󪝬󫍓󭍹󫍥󟝠󪍳󫌨󙍻󭌿󦜯󜼭󜜹󜌺󜬱󜍽󘌸󜌥󝼰󙝠󚜊󩭩󫍬󚌩󯜻`.replace(/u../g,'')))

Aug 20 2022 6:18 PM UTC

}// 138/140

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Torn Landscape

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RealPeha

function u(t) {

onclick=t=>{p=18*Math.random(c.width=99)|0,k="⚀⚁⚂⚃⚄⚅".repeat(3),x.font='2em"',f=k[5]+k[p],x.fillText(p>11?k[11]+f:p>5?f:k[p],5,40)}

Nov 1 2019 3:29 PM UTC

}// 131/140

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Click to roll dice. Generates numbers in the range 0-18

u/f8f82804

#dice

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geb

remix of d/12249 by u/pavel

function u(t) {

n=99;for(c.width|=p=710/113,x.scale(9,9),i=n;j=i--*p/n;x.arc(n+15*C(A=t/n+i*p/3),66+15*S(A),n/3,a=(j-t),a+1));x.stroke()

Feb 10 2019 12:48 PM UTC

}// 120/140

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nix

remix of d/8013 by u/nix

function u(t) {

c.width=1920
for(i=0;i<360;i++){x.fillRect(800+i+200*+S(i),
600+200*+S(i+(t*2)),
 (30*+C(+S(i)+t))
,(30*+C(t+i)))}

May 6 2018 10:08 PM UTC

}// 114/140

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sandromiccoli

function u(t) {

x.strokeStyle=R(0,0,0,0.15)
x.beginPath()
x.moveTo(960+S(t)*250,480)
x.quadraticCurveTo(960+C(t/4)*960,480+S(t/4)*580,960,980)
x.stroke()

Jan 4 2018 4:50 PM UTC

}// 137/140

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wait for it....

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contone

function u(t) {

x.fillRect(0,0,2e3,2e3)
x.globalCompositeOperation ='difference'
x.font='9cm"'
x.fillText("🐔",t*100%100+~~t*300-150,(~~(t*4)*300)%900+350)

Apr 5 2021 12:11 AM UTC

}// 138/140

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chicken psyche

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rodrigo.siqueira

remix of d/34847 by u/rodrigo.siqueira

function u(t) {

c.style.filter='invert('
for(i=3e4;i--;x.fillRect(940+X*15,480-Y*62,t<2.2,.1))
F=i%(2+40/t),X=4*F*S(k=i%7?i*i:~(i/t)%44),Y=F*C(k)/2-20/(F+1)

Jan 27 2026 12:37 PM UTC

}// 140/140

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Gravity grid #spacetime

u/Ohead

I didn't know the browser automatically finishes CSS function calls that are left unclosed!

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Gabe

function u(t) {

c.width*=1;x.lineWidth=4;for(j=80;j--;)for(i=5;i--;)x.lineTo(960+C(i*1.57+j/(20+C(t+j/29)*5)+t)*200,900+S(i*1.57+j/99+t)*60-j*9);x.stroke();

Feb 25 2019 5:44 PM UTC

}// 140/140

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remix

u/katkip

Don't copy me, kid. I'M DANGEROUS
u/Gabe

ban katkip

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tomru

function u(t) {

c.width=1920
for(i=1;i<95;i++){
x.fillStyle=R(C((t-(i%20)))*255,C((t+(i%20)))*255,.2*255,1)
x.fillRect(i*20,1080/2,15,500*C(t)*S(i/6))}

Apr 9 2019 9:14 PM UTC

}// 135/140

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my first try