Hot dweets by u/xyper

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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xyper

function u(t) {

t?0:eval("w=c.width=960;for(i=0;i<(h=540);i++){for(j=0;j<w;j++){x.fillStyle=R(j**(i/j)%455,j**(i/j)%300);x.fillRect(j,i,1,1)}}")

Jun 15 2025 3:53 PM UTC

}// 128/140

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surface of the sun

u/xyper

tried to make a mandelbrot set renderer but i got confused after like 5 minutes and gave up
u/skeletonNatte

i love it!

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xyper

function u(t) {

eval(unescape(escape`砮晩汬⡮敷⁐慴栲䐨❍㘵㈠㐵ぁㄠㄠ〠〰㔴㈠㐸㉡ㄠㄠ〠〰ㄱ〭㌲洲㈵‴ちㄠㄠ〠〰ⴸ〠㠱焱㘶‱㘴″㈵ⴲ愱‱‰‰〭㜹ⴸ㕱ⴸ㐠㤳ⴱ㘶‶洳㤶ⴱ㝡ㄠㄠ〠〰ㄱ㘭ㄠㄠㄠ〠〰ⴱㄶ‱✩⤠`.replace(/u([^D].)/g,'$1%')))

Nov 26 2024 11:41 PM UTC

}// 132/140

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my profile picture

u/tomxor

⏺ ◟◞ ⏺
u/tomxor

Oh wow, unicode rendering is so different between Chrome and Firefox.

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xyper

function u(t) {

c.width=500
b=[S(t*2)*100+250,C(t*4)*31+150]
x.beginPath()
x.moveTo(250, 70)
x.lineTo(b[0],b[1])
x.arc(b[0],b[1],10,0,7)
x.stroke()

Jun 29 2024 4:56 AM UTC

}// 131/140

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pendulum

u/tomxor

Hah, I totally didn't see this before posting mine. #pendulum

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xyper

function u(t) {

a="you are not on the beta frontend";c.width=200;if(window.location.origin.includes("beta")){a=a.replace(' not','')}x.fillText(a,9,50)

Dec 2 2023 5:28 PM UTC

}// 134/140

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u/xyper

this does not work because dweets are put in an iframe which are dweet.dwittr.net
u/xyper

dweet.dwitter.net*
u/lewdev

Use document.referrer instead. See d/29102

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xyper

remix of d/26288 by u/384.cz

function u(t) {

c.style="filter:invert("
c.width=999
for(i=190;i--;)x.fillStyle=R(i,i*2,255),x.fillRect(199+S(i+t)*i,199+C(i+t)*i,i,i)

Nov 17 2023 4:36 PM UTC

}// 118/140

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inverted

u/xyper

just realised i got it the wrong way around but whatever

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xyper

function u(t) {

c.width=500;x.fillRect(0,0,999,999);x.fillStyle="cyan";for(i=1e4;i--;){x.fillRect(S(S(t*-0.8)+(i*0.5))*150+250,C(t+i)*100+135,15,15)}

Nov 17 2023 10:24 AM UTC

}// 133/140

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facebook/meta logo

u/kadin

am i the only one who thinks it looks like a pringle with a hole in it

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xyper

function u(t) {

a=b=800;c=[500,0,0,800,999,800];for(i=0;i<99;i++){f=~~(Math.random()*3);a=a+(c[f*2]-a)/2;b=b+(c[f*2+1]-b)/2;x.fillRect(a,b,1,1)}

Nov 15 2023 11:09 AM UTC

}// 128/140

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sierpinski triangle thing i made, took way too long and is probably super unoptimised

u/Xen

nicely done!
u/rodrigo.siqueira

Simple optimization to reduce 6 chars: c=[500,0,0,a=b=800,1e3,b]

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xyper

function u(t) {

c.width=1920;for(i=0;i<9;i++){x.lineWidth=10;x.moveTo(960,0);x.lineTo(S(t+i*1.4)*500+960,1080)}x.stroke()

May 14 2023 2:32 PM UTC

}// 105/140

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the mountain spins both ways

u/Smorg

hmmmm
u/donbright

nice illusion

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xyper

function u(t) {

a=(S(t*143)+1)*950;b=(C(t*252)+1)*520;d=(C(t*389)+1)*90;e=(C(t*312)+1)*90;x.fillStyle=R(a/10,b/10,d,255);x.fillRect(a,b,d,e)

Feb 15 2023 8:59 AM UTC

}// 125/140

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little thing i made

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xyper

function u(t) {

x.fillStyle="#"+~~t+"00000";x.fillRect(~~t*100,1,100,10000)

Jan 28 2023 4:25 AM UTC

}// 59/140

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first thing ive made

u/Xen

welcome to dwitter

You've reached the end.

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