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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rodrigo.siqueira

remix of d/34001 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
for(i=7e4;i--;x.fillRect(960+X/Z,470-Y/Z,.1,t<1))r=S(w=i*i/t)/C(w),X=S(k=i+r**-.4)*480,Y=C(k)*460,Z=C(S(i/2))*2-1/r

Jun 29 2025 8:45 PM UTC

}// 140/140

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Massive dark sphere

u/joeytwiddle

#sphere

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contone

function u(t) {

w=960
f=frame-540
for(i=-w;i++<w;)e=Math.sqrt(f*f+i*i)%f,x.fillStyle=R(e),x.fillRect(i+w,frame,1,1)
x.font='3cm"';x.fillText('🐓',890,f%1280)

Apr 7 2021 9:19 PM UTC

}// 140/140

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chicken fall forever

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davidsover

function u(t) {

x.fillStyle=R((t*12+85)%255,t*12%255,(t*12+170)%255)

for(i=0;i<1000;i++){
a=Math.random()*12
x.rotate(a)
x.fillRect(a*100+S(t),0,5,20)
}

May 21 2021 6:33 PM UTC

}// 137/140

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Color Changing Ball

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mlr

function u(t) {

c.width=1920;
  for(i=0;i<64;i++)
  x.fillRect(i*30, 400 + S(i*t/2)*C(S(8*t/5+(i*3)))*100, 35, 300)

Dec 27 2017 12:36 AM UTC

}// 99/140

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u/PiggyClone205

Wacky waving inflatable arm flailing tube man?

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yonatan

remix of d/20267 by u/yonatan

function u(t) {

c.width|=X=Y=0
for(k=i=3e3;i--;z=k-i+99,s=(5e3+k*S(t*4))/z,x.fillRect(960+(X+=C(d))*s,540+(Y+=S(d))*s,s*=2,s))d=S(i/9+t*9|0)*99

Oct 20 2020 5:42 PM UTC

}// 127/140

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rodrigo.siqueira

remix of d/27851 by u/RomanPro100

function u(t) {

for(j=3;j>0;j--){for(i=999*S(t)**2;i>0;i--)x.fillRect(300*S(k=i*i)+475*j,99*C(k)+240*j+99*T(i+t)**2,t/8,t<5)}

May 31 2023 12:23 PM UTC

}// 109/140

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Pipes remix: fine grained #noise

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erin

remix of d/19542 by u/IV

function u(t) {

for(w=i=960;i--;)D=S(w*i+t),X=S(D),Y=C(i*i),x.fillRect(w+X/t*w,w/2+Y/t*w,s=99/t,s),x.fillStyle=`hsla(${D*99},99%,50%,1`

Mar 10 2021 7:47 PM UTC

}// 119/140

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colored tunnel #tunnel

u/danny@hille.dk

Looks realy nice

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RallerenP

function u(t) {

c.width|=0
d=new Date
f=n=>n.toString(2)
x.font="6em a"
x.fillText(`${f(d.getHours(2))}:${f(d.getMinutes())}:${f(d.getSeconds())}`,520,640)

Mar 27 2021 11:52 AM UTC

}// 139/140

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#time

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ETHproductions

function u(t) {

c.width|=onkeydown=e=>(e=e.keyCode-37)?e-1?e-2?e-3||Y++:X++:Y--:X--;x.fillRect(X*9,Y*9,60,60)};{X=Y=70
// game template. arrow keys to move

Nov 2 2017 1:53 AM UTC

}// 139/140

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Very rudimentary game template. Not sure how much more anyone can do with <40 bytes, but you never know ;)

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Sachi

remix of d/22183 by u/Kwandes

function u(t) {

s=500;for(q=0;q++<40;){for(j=0;j++<150;){a=q+t;x.fillStyle=R(t%70+t*q,t%q,t%a*q);x.fillRect(C(a)*(t%a*70)*S(j)+900,S(1)*s*C(a)+540,8,8)}}

Mar 28 2021 3:12 PM UTC

}// 138/140

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