Dweets awesomed by u/magna

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: #Food

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katkip

function u(t) {

c.width=300;for(i=149;i--;)for(j=80;j--;)if(S(j+t/i*100)*C(i+t/j*100)>0)x.fillRect(i*2,j*2,2,2)

Dec 2 2018 2:19 PM UTC

}// 95/140

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Black hole vacuum

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pavel

function u(t) {

for(c.width|=i=11;--i;)for(j=i*4;j--;x.fill(x.arc(960+r*C(a=j/i*11/7+15*t/1.7**i),540+r*S(a),12+r/60,0,7)))x.beginPath(r=30*i**1.2)

Dec 2 2018 7:03 AM UTC

}// 131/140

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Spinning dots #beesandbombs

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katkip

function u(t) {

q=(A,C)=>{x.fillStyle=C,x.fillRect(0,0,A,S(t)*1080)};q(1920,'#f00');q(1920/3*2,'#ff0');q(1920/3,'#00f');x.drawImage(c,-5,-2,1930,1090)

Dec 1 2018 1:00 PM UTC

}// 134/140

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Happy Great Union Day 2018 in Romania! #flag

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katkip

function u(t) {

c.style.background='#000';x.shadowColor='lime';for(i=0;i<99;i++)x.fillRect(S(i+t/5)*i*100,400+T(i*10+t)*400,50,50),x.shadowBlur=T(t/99+i)*30

Dec 1 2018 12:48 PM UTC

}// 140/140

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Matrix Wires #d3

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jylikangas

function u(t) {

eval(unescape(escape`景爨硛昽❦楬汒散琧崨〬〬眽挮睩摴栽椽㌰〬眩㭩ⴭ㭸学崨㔹ⵓ⡡㵩⼹〩⨱㐬㈰⭃⡡⤪㤬㤬⸱⤬硛晝⠱㔰⬨椥㠭㐩⩺ⰵ〫稬樥㌿ㄺ稬ⅸ学崨椬㐵⭓⡩⼱㤩⨹ⰱⰱ⤩⥪㵩㸾㌬稽眯⡪⵴┱⨶⤬砮晩汬却祬攽∣づ㠹∻`.replace(/u(..)/g,"$1%")))

Dec 1 2018 12:37 PM UTC

}// 140/140

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Moonlight Zone

u/katkip

Awesome
u/aleamb

dude!!!
u/Xen

Nice one :-)

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veubeke

function u(t) {

eval(unescape(escape`䴽䵡瑨⹲慮摯活琦♲㰱㔰☡䐮獯浥⡤㴾䵡瑨⹨祰潴⡤⹰⵰Ɽ⹱⵱⤼搮爫爫㤩㽲⬽㈺瀽䴨䐽琿嬮⸮䐬筰ⱱⱲ絝㩛崬焽䴨爽〩⨱〸〩⨱㤲〻砮晩汬却祬攽刨㈵㔭爩ⱸ⹦楬氨倽湥眠偡瑨㉄ⱐ⹡牣⡰ⱱⱲⰰⰷⰰ⤩`.replace(/u(..)/g,"$1%")))

Dec 1 2018 11:39 AM UTC

}// 137/140

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#circles

u/veubeke

Uncompressed: M=Math.random;t&&r<150&!D.some(d=>Math.hypot(d.p-p,d.q-q)<d.r+r+9)?r+=2:p=M(D=t?[...D,{p,q,r}]:[],q=M(r=0)*1080)*1920;x.fillStyle=R(255-r),x.fill(P=new Path2D,P.arc(p,q,r,0,7,0))
u/magna

#waitforit
u/magna

Awesome!
u/magna

TIL: Math.hypot()
u/Xen

my Anti-OCD wants just one circle to touch :P

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pavel

remix of d/11200 by u/anotherkitten

function u(t) {

a=frame%29/9
t?a?x.moveTo(2e3,540):x[j=i]=i+=i<++s|x[i-s]?s:-s:j=i=s=0
o=(f=i>j)==s%2
x.arc(i+j<<2,540,4*s,w=f*22/7,o?w-a:w+a,o)
x.stroke()

Nov 30 2018 9:52 PM UTC

}// 139/140

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Recamán's sequence (try fullscreen)

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metamero

remix of d/11217 by u/metamero

function u(t) {

eval(unescape(escape`景爨稽㜲Ᵽ⹷楤瑨簽欽〻欼㐴㤻⬫欩椽款㸴ⱪ㵫☱㔬瀽稪椬焽稪樭稬⠨椫権┲㽸⹲散琨瀬焬稬稩㨰⤬砮牥捴⡰⬴ⱱ⬴⭺⩃⡴⤪⨨欥㜩ⰲ〬㈰⤬砮牥捴⡰⬴㠬焫㐸⭺⩓⡴⤪⨨欥㔩ⰲ〬㈰⤻砮晩汬⠧敶敮潤搧⤻`.replace(/u(..)/g,"$1%")))

Nov 30 2018 9:17 PM UTC

}// 138/140

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#Trippy #Illusion by [metâmero]

u/metamero

for(z=72,c.width|=k=0;k<449;++k)i=k>>4,j=k&15,p=z*i,q=z*j-z,((i+j)%2?x.rect(p,q,z,z):0),x.rect(p+4,q+4+z*C(t)**(k%7),20,20),x.rect(p+48,q+48+z*S(t)**(k%5),20,20);x.fill('evenodd');
u/iverjo

#opticalillusion

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ellisk1

function u(t) {

t||x.translate(960,540);with(x)beginPath(p=Math.PI),moveTo(9,9),arc(r=6e3*Math.random(),0,r/2,7*p/8,p),stroke(),rotate(p/9),lineWidth=r/1e3

Nov 30 2018 8:46 PM UTC

}// 139/140

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Busy Spider

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katkip

remix of d/11214 by u/katkip

function u(t) {

t||x.translate(960,540);for(b=-35;b<35;b++)for(a=-65;a<65;a++)x.fillStyle=`hsl(${(a*a+b*b)**.2*5000*t
} 99%50%)`,x.fillRect(a*15,b*15,15,15)

Nov 30 2018 6:10 PM UTC

}// 140/140

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now it's a CB #fractal

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