Dweets awesomed by u/KilledByAPixel

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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robbyg

function u(t) {

for(c.width|=i=9;i--;)x.stroke(new Path2D(`M${560+i*100+S(t)*300} 440h50v200h-50z`))

Sep 6 2019 3:24 PM UTC

}// 84/140

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Stroked #default using Path2D. Lots of room for activities.

u/robbyg

#path2d

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atgz

remix of d/15574 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`睩瑨⡸⤡⡆偓ⴭⴶ〩㼨晩汬剥捴⠰ⰰⱔ㴷攳ⱔ⤩㩧汯扡汃潭灯獩瑥佰敲慴楯渽❳捲敥渧ⱦ潮琽∷㝥洧∬晩汬却祬攽恨獬⠤筴⨽命‹㤥㔰╠ⱴ㰳㘰㽦楬汔數琨≃桲潭慴楣∬琯㘬启㜬ㄸ㠰⤺〻`.replace(/u(..)/g,"$1%")))

Sep 6 2019 1:03 PM UTC

}// 130/140

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with(x)!(FPS---60)?(fillRect(0,0,T=7e3,T)):globalCompositeOperation='screen',font="77em'",fillStyle=hsl(${t*=T} 99%50%,t<360?fillText("Chromatic",t/6,T/7,1880):0

u/atgz

golfed it to 156 chars but I don't think it is feasible to go down to 140 :P with(x)(S)?(fillRect(S=0,0,T=7e3,T)):globalCompositeOperation='screen',font="77em'",fillStyle=hsl(${t*=T} 99%50%,t<300?fillText("Chromatic",t/6,T/7,T/4):0

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rodrigo.siqueira

remix of d/15630 by u/taupelink

function u(t) {

if(t<5)for(i=d=e=f=5e3;i--;x.fillRect(d*z,e*z,1,1))[d,e,f]=[(r=Math.random(z=99)*z|3)/5-2/(.5+r%3)*C((d-r)*22)*1,.8*r%15-6*S(1/S(d))/f,d]

Sep 6 2019 12:49 PM UTC

}// 137/140

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Geometric gradients

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BriSeven

function u(t) {

for(let i=0,j=0,k=0,c=32;i<c;i++,j=i/c,k=255)
x.fillStyle=R(C(j+t)*k,S(j+t)*k,-S(j+t)*k),
x.fillRect(j*k*8+S(t*j*5)*k,k*2+C(t*j*5)*k*2,k,k)

Sep 6 2019 6:01 AM UTC

}// 139/140

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Colour Tumble

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DataMeta

function u(t) {

r=Math.random,m=r(n=r(o=r(l=255)))
with(x)for(j=768;j--;beginPath(fill()))fillStyle=R(l*m,l*n,l*o,.1),
arc(64*(j%31),64*(j/31|0),r()*51,0,7)

Sep 6 2019 1:40 AM UTC

}// 140/140

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#psychedelic

u/taupelink

groovy!
u/DataMeta

haha ty

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dmoura

function u(t) {

c.width|=0
x.translate(960,540)
x.rotate(-t/2)
x.fillStyle = R(0,50,100,0.2)
for(i=0;i<1300;i+=.3)
  x.fillRect(C(i)*i,S(i)*i,i/6,i/8)

Sep 4 2019 10:50 AM UTC

}// 134/140

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Galactic swirl

u/13thptr

nice style
u/aleamb

stylish!
u/dmoura

thanks! :-)
u/lionleaf

#swirl
u/iverjo

Beautiful

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katkip

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼👩🐹𞱩𛐭𞱣𛡳𭁹𫁥𛡢𨑣𪱧𬡯𭑮𩀽𙰣𩑥𩐧𚑸𛡦𪑬𫁒𩑣𭀨𝀰𜀫𪐪𞐹𚱓𚁴𚐪𜰰𜀬𝀰𜀬𝐰𛀲𜀰𚐻𨰮𬱴𮑬𩐮𭁲𨑮𬱦𫱲𫐽𨁲𫱴𨑴𩑘𚀤𮱴𚠪𜰪𜡽𩁥𩰩𨀬𨰮𬱴𮑬𩐮𫑡𬡧𪑮𥁯𬀽𨀤𮱴𚠪𜰪𝁽𬁸𨀠`.replace(/uD./g,'')))

Sep 4 2019 9:17 AM UTC

}// 124/140

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#default but the iframe is falling for(c.width|=i=9;i--;c.style.background='#eee')x.fillRect(400+i*99+S(t)*300,400,50,200);c.style.transform=rotateX(${t**3*2}deg),c.style.marginTop=${t**3*4}px

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katkip

remix of d/15558 by u/katkip

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𮱘👙🐰𞱰👛𧐻𩡯𬠨𪐽𝐻𪐭𛐻𚑰𛡰𭑳𪀨𦰹𝠰𚱓𚁑🐶𛠲𞀯𝐪𪐩𚠴𜀰𛀵𝀰𚱃𚁑𚐪𝀰𜁝𚑽𞱦𫱲𚁩🐹𞐹𞱩𛐭𞰩𮀮𩡩𫁬𤡥𨱴𚁘𚠱𛠵𛁙𚠱𛠵𛀲𛀲𚐬𦀽𚁘𚱰𦰨𬠽𣑡𭁨𛡦𫁯𫱲𚁍𨑴𪀮𬡡𫡤𫱭𚀩𚠵𚐩𧑛𜁝𚐯𜠮𝐬𦐽𚁙𚱰𦱲𧑛𜑝𚐯𜠮𝐻`.replace(/u../g,'')))

Sep 3 2019 9:14 AM UTC

}// 136/140

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if(!t){X=Y=0;p=[];for(i=5;i--;)p.push([960+S(Q=6.28/5*i)*400,540+C(Q)*400])};for(i=999;i--;)x.fillRect(X*1.5,Y*1.5,2,2),X=(X+p[(r=Math.floor(Math.random()*5))][0])/2.5,Y=(Y+p[r][1])/2.5 #chaosgame #fractal

u/rodrigo.siqueira

#uncompressed (139 characters): X=Y=730;p=[];for(i=5;i--;)p[i]=([X+X+X*S(i*5),X+C(i*5.03)*X]);for(i=X;i--;x.fillRect(X,Y,2,2))X=(X+p[r=~~(X*t%5)][0])/2.5,Y=(Y+p[r][1])/2.5
u/katkip

nice

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rodrigo.siqueira

remix of d/12319 by u/rodrigo.siqueira

function u(t) {

c.width|=X=Y=Z=1
for(i=3e3;i--;x.fillRect(500*(t%6.2-i%3-X*C(t*9)/33),800-i%3*90-(1.3+S(t))*Z*6,5,5))Z+=(X*Y-Z)/39,X+=(Y-X)/9,Y+=X*(27-Z)/97

Sep 2 2019 2:05 PM UTC

}// 140/140

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Three Lorenz Butterflies #lorenz #attractor #butterfly

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taupelink

function u(t) {

for(i=d=e=1e3;i--;x.fillRect(d*z,e*z,d&e,d%e))[d,e]=[(r=Math.random(z=90)*z|0)/5+C(d)+1/d,r%9+T(d)],x.fillStyle='#'+'F9069C9F'.substr(r%6,3)

Sep 2 2019 2:39 AM UTC

}// 140/140

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