Dweets awesomed by u/mmfun

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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anotherkitten

function u(t) {

for(c.width|=s=i=60;i--;)for(j=20;j--;)i+j&1&&x.fillRect(s*(i-t%1*(j&1)*(p=t*2&2)),s*(j-(t%1*(j+1&1)*2*!p)),s,s)

Oct 29 2018 10:11 PM UTC

}// 112/140

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weaving checkers

u/anotherkitten

idea from looking at the dweets of u/alice-mx
u/anotherkitten

u/pavel beat me to it rip
u/pavel

Yours makes for a better illusion because any given square eventually walks off-screen. In mine each square follows a small closed path.
u/pavel

I combined best of both into d/10768

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leonarven

function u(t) {

c.width|=r=30
for(I=0;I<r*r;x.fill(x.arc(585+r*X,540+r*Y,G*15,0,6)))x.beginPath(X=I-r*(Y=I++/r&255),G=1+S(7*t-Math.sqrt((Y-=12.5)*Y+X*X)/9))

Oct 21 2018 11:05 AM UTC

}// 140/140

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Waves~~

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rbong

function u(t) {

for(c.width=i=99;i--;)for(k=56;k--;)x.fillStyle=R(
(j=C(S(i/50+16)*S(k/50+t)*100*t/20))*99,
C(j*3.14)*99,
150
),x.fillRect(i,k,1,1)

Oct 13 2018 11:17 PM UTC

}// 132/140

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Droplets

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Purpzie

remix of d/4329 by u/retera

function u(t) {

for(c.width|=0,d=720;d--;x.fillRect(C(a=b/8/t+t/r)*s*S(b%8+t)+960,S(a)*s*C(b%8-t)+540,8,8))s=480+C(r=0|d/72,b=d%72)*r*5

Oct 12 2018 4:53 PM UTC

}// 119/140

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Combined 3 for loops into 1, shortening from 140 to 119 characters

u/donbright

awesome

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Purpzie

remix of d/9998 by u/SuperFromND

function u(t) {

r=_=>Math.random()-.5;with(x)fillStyle=`hsl(${t*100} 50%50%)`,drawImage(c,r()*99,r()*99),font='500px"',fillText('HELLO',175,700)

Sep 27 2018 8:02 PM UTC

}// 128/140

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hello

u/cantelope

lol

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Xen

function u(t) {

for(Y=i=960;i--;x.fillRect(Y+C(i-i/7+t)*Y,540+S(t+i)*540,19,19))x.fillStyle=R(Z=i/4,t*9%Z,Z*S(t))

Sep 24 2018 6:59 PM UTC

}// 97/140

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have a play with the C() and S() in fillRect

u/prplz

love it
u/joeytwiddle

Nice changing #pattern

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username

remix of d/4139 by u/AliYil

function u(t) {

for(i=0;i<20;i++)for(j=0;j<12;j++){s=S(S(t)*i+j+t*10)*25+25
k=127
x.fillStyle=`hsl(${k**S(t)*9} 99%50%`
x.fillRect(i*100-s,j*100-s,s*2,s*2)}

Sep 21 2018 8:34 PM UTC

}// 140/140

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cantelope

function u(t) {

eval(unescape(escape`景爨倽孛⡣⹷楤瑨簽樽㤩⼲ⰴ㐰嵝㬫⭪㰸〻倮浡瀨焽㹻景爨椽㌻椭ⴻℨ漭ㄹ⤦♐⹰畳栨存ⱙ崩⥳㴳攴⽪⽪Ɽ㵯⩳ⱸ⹦楬汒散琨堽煛そ⭓⡰㵩⼮㐸⭯⩓⡴⤯㠭匨琩⨲⸳㘩⩤⵳⼲ⱙ㵱嬱崫䌨瀩⩤⵳⼲ⱳⱳ⥽⤩漽樥㈰`.replace(/u(..)/g,"$1%")))

Sep 3 2018 7:14 PM UTC

}// 140/140

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https://dweet.net/285/9651

u/katkip

That's awesome
u/donbright

woah
u/donbright

woah
u/katkip

#fractal

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f8f82804

function u(t) {

x.globalAlpha=.1;x.drawImage(c,192,108,1536,864,0,0,1920,1080);x.font='16em 🐔';x.fillText([...'🥚🐣🐔'][~~(t/3)%3],864+80*S(t),540+50*C(t))

Aug 23 2018 7:26 PM UTC

}// 136/140

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yonatan

function u(t) {

eval(unescape(escape`景爨瀠楮⁸⥴桩獛灛そ⭰嬶嵝㵰㭸学捝⠰ⰰⱱ㵣⹷楤瑨㵣⹨敩杨琽㤸ⱱ⤻景爨硛权崽❬楧桴敲✬椽㈰㭩ⴭ㭳㴲⨪椩椾㔿硛晣崨匨琩⨵㔫椪㘬㐰ⰴⰹⱸ学祝㵠桳氨⑻椪㌹紬㌹┬㈥怩㩸孤慝⡣Ⱝ猬⵳Ɫ㵱⭳⨲Ɫ⤠`.replace(/u(..)/g,"$1%")))

Aug 6 2018 12:12 AM UTC

}// 139/140

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uncompressed: for(p in x)this[p[0]+p[6]]=p;x[fc](0,0,q=c.width=c.height=98,q);for(x[gC]='lighter',i=20;i--;s=2**i)i>5?x[fc](S(t)*55+i*6,40,4,9,x[fy]=hsl(${i*39},39%,2%):x[da](c,-s,-s,b=q+s*2,b)

Show more comments…
u/magna

Wow!
u/CliffJonesJr

This is basically cheating. I love it!!!
u/fujimotos

Nice! #light #color
u/Lazy1337

#compressed
u/LoisoCrow

What is x?
u/whitecube-void

what
u/fujimotos

x is CanvasRenderingContext2D (something you can get by calling canvas.getContext()). It is one of the shorthand variables predefined in dwitter.

dwitter.net | mmfun (2104)