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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andrea270872

remix of d/17635 by u/andrea270872

function u(t) {

c.width|=K=130
for(j=77;j-->0;){A=[];T=(t/j)%3
for(i=9;i-->0;)A.push(K+j%13*K+C(i/T)*49,K+~~(j/13)*K+S(i/T)*49)
x.stroke(new Path2D('M'+A))}

Feb 15 2020 5:22 PM UTC

}// 140/140

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Cleaner geometries

Show more comments…
u/andrea270872

#waitForIt
u/DataMeta

#waitforit :)
u/DataMeta

Oh huh, it resolves as the same tag, TIL
u/andrea270872

thanks :)
u/bandaloo

does the >0 at the end of j-- and i-- do anything? when j reaches zero it's falsey anyways
u/bandaloo

i should also say this is really beautiful
u/andrea270872

good point Bandaloo. Thanks

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DazeWare

remix of d/34835 by u/DazeWare

function u(t) {

for(i=1e4;i--;x.fillRect(960+X*60,610-Y*70,t<2,.1))
F=i%(4+6/t),X=F*S(k=i/t)-1*S(w=k/9),Y=F*T(k)+1*C(w)

Jan 23 2026 9:35 PM UTC

}// 103/140

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384.cz

remix of d/29198 by u/384.cz

function u(t) {

c.style.background="#0a0"
f=_=>"41228122632354138413"[i++]*135
for(i=0;i<20;)x.fillRect(f(),f(),f(),f())

Dec 23 2023 6:46 PM UTC

}// 104/140

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Golfed Creeper

u/tomxor

Nice! SVG inside a canvas 2d path might work too.

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cantelope

remix of d/31825 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`景爨琪㵮㴹㭴㱮☦渭ⴻ琫㴱⼶〩景爨猽琿猯⸹㤷㨹Ⱪ㴱㤹㭩ⴭ㬩景爨樽㄰㈻樭ⴻ琼⡩⼱㕼樯ㄵ⤥㘫ㄦ♸⹦楬汒散琨⡩ⴹ㤩⩳⬹㘰Ⱘ樭㔱⤪猫㔴〬猬猩⥸⹦楬汓瑹汥㵒⡶㴨橼楼琪㜩┷⩴⨹ⱶⱶ⤠`.replace(/u([^D].)/g,'$1%')))

May 20 2024 5:41 PM UTC

}// 135/140

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9x draw speed :D

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Xen

remix of d/15619 by u/smtsjhr

function u(t) {

for(c.width=i=2e3,x.lineWidth=9;i--;x.lineTo(960+k*S(z=i*.01*t),540+k*C(z)))k=4e3*.99**i;x.stroke()

Oct 16 2020 1:25 PM UTC

}// 99/140

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just a golf and test

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rodrigo.siqueira

remix of d/33756 by u/KilledByAPixel

function u(t) {

for(c.width|=i=800;i--;)x.ellipse(960,850-i/1.5,300,99,0,a=(i%14+C(t+i/1500))*Math.PI,a)
x.stroke()

May 9 2025 1:08 PM UTC

}// 99/140

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Plane twist cylinder

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kian

remix of d/21915 by u/kian

function u(t) {

for(i=2e3;i--;)x.fillStyle=R(s=t%7*i,x.fillRect(1e3+C(p=t/99+i)*S(t)*s*t,540+S(p)*S(t/4)*s*t,4,4),s%i*t,.4)

Mar 12 2021 12:51 PM UTC

}// 107/140

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katkip

remix of d/9171 by u/New_Core

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(i=200;i--;x.fillRect(960+i/C(i+t),Y=850-750*C((i/.1)%1.73),T=i/9,T))i<1?a=.1:a=255,x.fillStyle=R(0,0,a,a)

Aug 10 2018 4:05 PM UTC

}// 133/140

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taupelink

function u(t) {

for(i=1e3,d=e=0;i--;x.fillRect(d*960,e*1080,1,1))[d,e]=[d+((r=Math.random()*3|0)-d+e*S(d*6.3))/2,e+(1-r%2-e)/2],x.fillStyle=R(!r*255,0,r*99)

Aug 16 2019 3:31 AM UTC

}// 140/140

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Nonlinear with a trig function, with simultaneous coordinate updating like I "ought" to have been doing all along 👀

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myxoh10

remix of d/25974 by u/myxoh10

function u(t) {

c.onmousemove=e=>m=e
g=a=>99*(S(t*a/9)+1)
x.fillStyle=R(g(8),g(4),g(2),.4)
x.fillRect(m.x*3.2,m.y*3.3,99,99)

Aug 18 2022 9:45 PM UTC

}// 108/140

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Slightly less characters - #draw #interactive