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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anotherkitten

function u(t) {

if(!t){b=Array(c=7e3).fill(-1);for(a=i=0;a<c;x.arc(a-d/2,540,i/2,g=Math.PI*(i&1),g+Math.PI))b[a]=1,a+=d=a-++i<0?i:b[a-i]*i;x.stroke()}

Nov 28 2018 10:25 PM UTC

}// 134/140

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recaman's sequence (light)

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maeln

function u(t) {

c.width|=0
w=960;h=450
for(n=1;n<16;n++) {
x.beginPath()
x.moveTo(w,h)
x.quadraticCurveTo(w*S(n),h*C(n),w*C(t+n)*n, h*S(t+n)*n)
x.stroke()
}

Nov 1 2019 12:32 AM UTC

}// 140/140

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Lines

u/Odog8

eeew looks like a spider

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taupelink

remix of d/29592 by u/taupelink

function u(t) {

f=(u,v,m=5)=>(m?f(u,v,m-1)-m:u%v-v/2)**2*.4;g=n=>!(f(X,n)+f(Y,n^3)&9);for(i=1e4;i--;x.fillRect(480+32*X,60+32*Y,g(6),g(5)))X=i*t%30,Y=X*i%30

Mar 2 2024 7:19 PM UTC

}// 140/140

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d/29596

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KilledByAPixel

remix of d/14546 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`挮睩摴桼㴰㭦潲⡩㴲㤻椭ⴻ⥷楴栨砩獡癥⡢敧楮偡瑨⡦潮琽∷づ洠業灡捴∩⤬浯癥呯⡪㴱攳ⰵ㐰⤬捬楰⡡牣⡪ⰵ㐰ⰲ攳ⱱ㵩⼴⸶ㄫ㤬焫⸲⤩Ⱳ敳瑯牥⡦楬汔數琨≓䵁午∬㤫㈹⩓⡱⨪㐫琩ⱪ⬴㤪䌨焪⨵⭴⤬ㄹ〰⤩`.replace(/u(..)/g,"$1%")))

Jun 13 2019 3:38 AM UTC

}// 140/140

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SMASH #compressed

u/KilledByAPixel

How it works: https://frankforce.com/?p=6766

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mhi

remix of d/9444 by u/DataMeta

function u(t) {

v=Math.abs;for(c.width|=i=360;i--;)x.ellipse(960+C(t)*90,b=540,b*.7*v(C(i-t)),i*v(S(S(i)/t)),t+i,-i,t);x.stroke();

May 24 2024 5:27 PM UTC

}// 115/140

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u/thenize

hip hip!
u/warbino

array!
u/warbino

awesome!

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New_Core

function u(t) {

if(!t)I=new Image(),I.src="http://is.gd/kjG7hF";c.width=1e3;x.drawImage(I,Math.floor(5*t%8)*184,0,184,325,-300+80*t%2e3,99,256,325)

Dec 25 2016 7:25 PM UTC

}// 131/140

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I was first thinking of doing alot of 3d rotating boxes but didnt find any good,,, ;) then I thought of reading pixels as letters and do all code I need on the picture but code got to long,, so a simple animation will do.

u/13thptr

#external
u/13thptr

#broken

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magna

function u(t) {

t||(c.width=w=100)
x.putImageData(new ImageData(new Uint8ClampedArray(a=c.toDataURL().split``.map(k=>k.charCodeAt``),a.length=4e4),w,w),0,0)

Mar 27 2018 12:31 AM UTC

}// 140/140

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TV noise without PRNG

u/magna

#noise

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KilledByAPixel

remix of d/14212 by u/KilledByAPixel

function u(t) {

s=c.style
s.backgroundBlendMode='DIFFERENCE'
for(b=[i=99];i--;s.background=b)b[i]=`radial-gradient(50px at ${i}%${30*S(i+t)+50}%,#03AA,tan)`

May 27 2019 3:48 AM UTC

}// 140/140

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Organic

u/katkip

#organic
u/Qwitter

wow!

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13thptr

function u(t) {

s=~~t+"";throw s.split``.map((e,i)=>(r="IXC",d="VLD"[i=s.length-1-i],b=r[i],e<4?b.repeat(e):e-4?e-9?e>4&e<9?d+b.repeat(e-5):0:b+r[i+1]:b+d))

May 30 2019 10:47 AM UTC

}// 140/140

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Counts up to 899

u/13thptr

Thanks to u/KilledByAPixel for the golfing help :)
u/joeytwiddle

optimvm laborvs!
u/13thptr

turns out someone made a more elegant and "general" implementation. The function is 136c long but it's not callable without compression inside Dwitter: https://codegolf.stackexchange.com/a/77961

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andrewbayly

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<8;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

May 1 2021 8:28 PM UTC

}// 112/140

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test

u/Xen

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