Dweets awesomed by u/sfz

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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donbright

remix of d/1399 by u/Kalanchoe

function u(t) {

c.width^=0
t?o.push({X:1e3,Y:500,U:9*S(t),V:t%9}):o=[]
o.map(a=>{a.X+=a.U+=a.X>1e3?-.1:.1,a.Y+=a.V+=a.Y>500?-.1:.1,x.fillRect(a.X,a.Y,9,9)})

Mar 15 2017 12:03 AM UTC

}// 140/140

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sfz

remix of d/2131 by u/recursive

function u(t) {

for(i=63;i--;)z=t/7%1,x.fillRect(X=z*2e3-99,Y=S(t)*540+540,80/z,80*z),t+=99/13,x.fillStyle=R((i&48)<<3,(i&12)<<5,(i&3)<<7,S(t/X)*C(-t/Y)/9)

Mar 14 2017 9:09 PM UTC

}// 140/140

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No room to spare.

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recursive

function u(t) {

for(i=63;i--;x.fillRect(t/3%1*1920,S(t)*500+500,80,80))t+=7.15,x.fillStyle=R((i&48)<<3,(i&12)<<5,(i&3)<<7)

Mar 14 2017 8:07 PM UTC

}// 107/140

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Room to spare.

u/sigveseb

pretty

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sfz

remix of d/2105 by u/mxfh

function u(t) {

c.width|=w=999
h=540
a=w+w*S(t)/3
b=h+h*C(t)/2
with(x)font='3em Arial',fillStyle='#aaa',fillText('The BEATLES',a,b),strokeRect(a-h,b-h,w,w)

Mar 14 2017 8:38 AM UTC

}// 139/140

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Dwitter Album Covers

u/sigveseb

haha nice

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nick

function u(t) {

e=200
for(i=0;i<88;i++)for(j=0;j<50;j++)x.fillRect(e*T(i*t)+800,e*T(j*t)+550,3,3)
x.fillStyle=R(e*T(t*i),e*T(t),e*C(t*i))

Mar 14 2017 5:53 AM UTC

}// 121/140

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Disclaimer: If you stare too long, it could result in mild hypnosis and spontaneous clucking.

u/sigveseb

must. resist. temptation. to. cluck.

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jczimm

function u(t) {

c.onmouseup=(e)=>x.fillRect((e.clientX*(f=0.0282)|0)/16*1920,(e.clientY*f|0)/8*960,120,120)

Mar 13 2017 8:40 PM UTC

}// 91/140

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"Pixel art"

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mxfh

function u(t) {

for(x.setTransform(f=51,0,i=7,f,h=360,h);i--;x.fillRect(i==3?-f:9+i*.6,i,99,1))x.fillStyle=`hsl(${(t+i)*f%h},99%,50%)`;x.strokeText('▲',4,7)

Mar 13 2017 7:50 PM UTC

}// 140/140

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Dwitter Album Covers

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jczimm

function u(t) {

c.width=1920;for(i=0;i<25;x.fillStyle=R(100+40*S(i),0,60+40*S(i++*2),1))x.fillRect(860+100*2*S(t+i),340+100*2*C(t+i),200,200)

Mar 13 2017 6:20 PM UTC

}// 125/140

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Marble donut loader

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sfz

remix of d/2072 by u/sfz

function u(t) {

c.width|=h=500
for(i=63;a=2*h+(S(t+i)+1)*h,b=i+(C(t+i)+1)*h,i--;)x.fillText(0,a,b),x.arc(0,0,(a**2+b**2)**.5,i,Math.atan2(b,a),0),x.stroke()

Mar 13 2017 7:44 AM UTC

}// 140/140

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u/donbright

gets pretty interesting the longer i watched it

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recursive

function u(t) {

t||(g=h=[])
for(n=i=960;--i+n;x.fillRect(i/d+n,(4-g)*99/d,9,99))h[i]=g=(g+h[i-1]+S(n*g)/9)/2||1,x.fillStyle=R(q=3*(t+9)*g,q,q*q>>7),d=1-t/30

Mar 13 2017 4:23 AM UTC

}// 140/140

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Rough surface

u/IV

It's like watching Bob Ross: 'happy little trees; anywhere you feel like...'

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