Top dweets by u/katkip

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: #Opposites

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katkip

function u(t) {

for(i=-55;i++<53;)for(j=39;j--;)x.fillStyle=R(i<0?255+i*2:0,i<0?155+i*8:0,i<0?0:S(i*i+j/2+t*i/12)*i*5,.2),x.fillRect(j*50,i*10+540,50,50)

Dec 11 2019 9:24 PM UTC

}// 137/140

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ｓｕｎｗｅｎｔｄｏｗｎ#landscape #waves

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katkip

remix of d/16863 by u/KilledByAPixel

function u(t) {

with(x)for(fillRect(0,0,2e3,2e3),q=i=200;i--;beginPath(fill(arc(960+q*T(S(i+t)+i),540+400*C(C(i)+i*2-t*2)*i/q,i/5,0,7))))fillStyle=R(i*i,i)

Dec 17 2019 2:14 PM UTC

}// 139/140

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u/LydianLights

I like the colors!
u/katkip

looks like flames

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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

remix of d/11867 by u/katkip

function u(t) {

eval(unescape(escape`昽⡘ⱙⱳ⤽㹻楦⡳㸴⥸⹦楬汓瑹汥㵒⠱㈸⭓⡳⭴⤪ㄲ㠬ㄲ㠫䌨猫琩⨱㈸ⰱ㈸⭃⡳⩳⤪ㄲ㠩ⱸ⹦楬汒散琨堭猯㈬夭猯㈬猬猩ⱦ⡘⵳ⱙⱳ⼲⤬昨堬夭猬猯㈩ⱦ⡘⭳ⱙⱳ⼲⤬昨堬夫猬猯㈩紻昨㤶〬㔴〬㜲〩`.replace(/u(..)/g,"$1%")))

Jan 17 2019 3:25 PM UTC

}// 135/140

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u/iverjo

How was this made?
u/13thptr

nice!
u/sigveseb

Ooh very pretty!
u/katkip

u/iverjo simple recursion
u/magna

This is so pretty!

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katkip

function u(t) {

c.width*=1;for(i=340;i--;)x.beginPath(),x.ellipse(960+S(i/3+t)*900,540+C(i/3+t)*300,i,i*2,i,0,1,20),x.fillStyle=i%2?'#ff2':"#f0f",x.fill()

Dec 22 2018 7:04 PM UTC

}// 138/140

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#illusion

u/magna

Wow!
u/joeytwiddle

It really looks like it's moving!
u/katkip

i feel irony

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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/11892 by u/katkip

function u(t) {

c.width*=1;for(i=64;i--;)for(j=60;j--;)
x.fillRect(600+i*20-j*10,j*10+Math.abs(32-i-S(t*5)*9)*5+Math.abs(30-j+C(t*5)*9)*5,10,10)

Jan 19 2019 7:52 PM UTC

}// 128/140

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Resizing the roof! #d3

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katkip

remix of d/5194 by u/JonasPeeters

function u(t) {

c.width=2e3
for(i=0;i<999;i++){
x.fillRect(S(i+t/5)*(C(i*t/999)+1.5)*350+960,C(i-t*5)*(S(i/99)+1.5)*60+700,15,(C(i+t/5)+1)*4+t)
}

Jul 31 2018 10:50 PM UTC

}// 130/140

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katkip

function u(t) {

t||(a=b=1);for(i=999;i--;)x.fillRect(360+a*100,860+b*100-t*50,3,3),a+=S(b/4+t*S(b/a-S(t*b+a))/99)*3,b+=C(a/4)/3;x.globalAlpha=.1

Jul 17 2019 11:48 AM UTC

}// 128/140

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Exploding Vulcano #chaos

u/donbright

nice

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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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