Dweets awesomed by u/kipkat

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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katkip

function u(t) {

c.width*=1;for(i=399;i--;x.globalAlpha=.3)x.beginPath(),x.ellipse(960+C(i)*70,540+S(i)*70,100,300,C(i/3+t),0,7),x.stroke()

Jul 11 2019 5:48 PM UTC

}// 122/140

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#abstract

u/aleamb

great!

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katkip

function u(t) {

c.style.background="#205";x.beginPath(x.strokeStyle='#fff1');for(i=9;i--;)x.lineTo(960+C(-(q=i*i*t)%3+5)*360,540+S(-q%3+5)*360);x.stroke()

Jun 20 2019 2:19 PM UTC

}// 138/140

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#moon #realistic A realistic moon with patterns on it.

u/Xen

love it!
u/KilledByAPixel

That's no moon...
u/katkip

It's a space station then

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katkip

function u(t) {

c.width*=1;if(!t){z=[];for(i=99;i--;)for(j=99;j--;)z.push({x:i,y:j})}
for(q of z)x.fillRect(500+(q.x+=C(q.y/9))*9,100+(q.y+=C(q.x/9))*9,6,6)

Jun 15 2019 10:11 AM UTC

}// 140/140

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Did someone say "chaos"? Here's something that rotates fluid-like

u/katkip

#chaos
u/KilledByAPixel

i like this one

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katkip

remix of d/14469 by u/katkip

function u(t) {

c.width*=1;x.lineWidth=9;for(i=211;i--;)x.beginPath(),r=S(t+i/59+S(t+i/29))+1.1,x.arc(960,140,10+i*4,r,r+1),x.stroke()

Jun 6 2019 2:46 PM UTC

}// 118/140

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u/joeytwiddle

Spooky

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katkip

remix of d/13245 by u/katkip

function u(t) {

c.width+=0;x.translate(960,540);x.globalAlpha=.02;for(r=4;r<1000;r+=5)x.fillRect(-r/2,-390+r/2,10+r,r/4),x.rotate(C(t*4+r/199)/199)

Apr 15 2019 11:56 AM UTC

}// 131/140

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u/Jezza

Nice!

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katkip

function u(t) {

eval(unescape(escape`砮杬潢慬䅬灨愽⸱㭸⹦楬汒散琨〬〬㉥㌬㉥㌩㭲㵍慴栮牡湤潭㭦㵰㴾匨⵰⼴㈫琪㈩㱓⡴⤻景爨椽㠹㤻椭ⴻ⥻堽爨⤪ㄹ㄰ⱙ㵲⠩⨱〷〻楦⡦⡙⼴幘⼴⤩砮捬敡牒散琨堬夬㄰ⰱ〩紻`.replace(/u(..)/g,"$1%")))

Mar 9 2019 8:58 AM UTC

}// 125/140

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Electricity. Sadly, #compressed x.globalAlpha=.1;x.fillRect(0,0,2e3,2e3);r=Math.random;f=p=>S(-p/42+t*2)<S(t);for(i=899;i--;){X=r()*1910,Y=r()*1070;if(f(Y/4^X/4))x.clearRect(X,Y,10,10)};

u/magna

Lovely aesthetic
u/corporateanon

Sometimes i see something like this before i fall asleep
u/mcdxn

or after sneezing!

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katkip

function u(t) {

t||(X=y=1)
f=x=>C(x)*S(x)*x/92+S(x*3.1416)/6
for(i=999;i--;)x.fillRect(960+X*20,540+y*20,10,10),y+=f(X),X+=f(y)

Mar 6 2019 4:35 PM UTC

}// 111/140

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Create your own chaotic #attractor curves #application modify f=x=

u/katkip

Beautiful #math
u/tomxor

I found a moose! :P f=x=>C(x)*T(x)*x/24+S(x/4)+C(x/8)
u/rep_movsd

#underrated

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katkip

function u(t) {

// Transferring...








receiveMessage=pauseDemo=0;q="";l=q.length;for(i=616;i--;)q+=C(i+C(t+i/99)*10+t*29)<0?'0':'1'
throw q

Feb 28 2019 2:42 PM UTC

}// 128/140

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#binary #hax

u/rnbw

oh neat! i tried to do something like this once (never published it) but your execution is really good
u/Ath0r

cool!
u/joeytwiddle

#parallax
u/C010011012

throwing errors for animation? wow clever

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katkip

function u(t) {

f=(X,Y,s,q=s*2)=>{if(s>2)x.fillRect(X-s,Y-s,q,q),f(X-s*1.5,Y,s/2),f(X+s*1.5,Y,s/2),f(X,Y-s*1.5,s/2),f(X,Y+s*1.5,s/2)}
f(960,540,200+t)

Jan 20 2019 2:11 PM UTC

}// 134/140

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A #fractal cross #recursion #recursive

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katkip

function u(t) {

eval(unescape(escape`挮睩摴株㴱㭦㴨堬夬猩㴾筩昨猾㔩砮扥杩湐慴栨⤬砮浯癥呯⡘ⱙ⤬䴽堫䌨猪猩⩳ⱎ㵙⭓⡳⩳⤪猬砮汩湥呯⡍ⱎ⤬砮獴牯步⠩ⱦ⡍ⱎⱳ⼱⸵⤬昨堬夬猯ㄮ㐩紻昨㤶〬㔴〬㤰〫琯〹㤩`.replace(/u(..)/g,"$1%")))

Jan 20 2019 2:02 PM UTC

}// 126/140

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