Dweets awesomed by u/IV

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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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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New_Core

function u(t) {

a=c.width|=0;for(b=i=550;i--;)x.fillStyle=R(t%9>8.8?a:0,a,a=80*S(i%50*S(t-i*.1)*.01)+60,1/a*9),x.fillRect(i%50*40,0,40,b+i+a+20*S(t+i*.15))

Mar 10 2017 9:17 AM UTC

}// 139/140

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Heavy rain at sea with lightning.

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u/donbright

:o
u/recursive

Nice
u/iverjo

Wow
u/jsizzle

Wow!
u/sfz

moody!
u/magna

https://www.youtube.com/watch?v=oKKDfynx4ZY
u/New_Core

#water
u/New_Core

#sea #ocean
u/joeytwiddle

My favourite
u/joeytwiddle

#hiddengem #waves #rain

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FireFly

function u(t) {

for(c.width|=i=0;i<40;i+=.025)R=S(t)/4+.25,r=.7-R,x.fillRect((A=R+r*S(D=i%1*44+88))*C(E=i+t/10)*480+960,(B=A*S(E)+r*C(D))*340+510,W=4-B*3,W)

Mar 6 2017 12:46 PM UTC

}// 140/140

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Torus-sphere thing

u/donbright

good one
u/SpecialAgent

excellent

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p01

function u(t) {

for(c.width|=i=48;i--;x.fillText(['🐸','🌷','☁️️'][k],64*S(k?i:i/9-t),i*3*C(k||i/7-t)))x.setTransform(j=((k=i>>4)*t+48-i)%16,0,0,j,960,540)

Mar 5 2017 3:53 PM UTC

}// 137/140

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** SPACE HARRIER **

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u/iverjo

LOL, nice :D
u/lienthealien

D: it's incredible. I still don't fully understand whats going on the begginning of the for.
u/p01

Thanks! Touching the width ( or height ) of a canvas resets it. c.width|=i=48; ⇒ Sets i to 48. Does a binary OR of 48 on the width of the canvas and resets ( it mostly clears it ) the canvas
u/sfz

redrawing the canvas and initializing i, nice!
u/lienthealien

p01 are you a wizard?? :v
u/donbright

doesnt seem to like firefox/ubuntu
u/iverjo

Hmm, why can one not do '🐸🌷☁️️'[k]? Is it simply because they are not single-byte characters?
u/p01

@iverjo: Exactly. Although I should have used [...'🐸🌷☁️️'][k] to save 3 bytes
u/andres

emojis exist on two planes of universes
u/AstonC

Phenomenal
u/joeytwiddle

#dragon #worm #game #tribute
u/joeytwiddle

#hiddengem
u/f8f82804

#emoji
u/stephsmith

#smokedweeteveryday
u/geb

#background

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puckipedia

function u(t) {

c.width+=0,c.onmousemove=d=>a=d.clientX*3;z=(t?z:Array(f=1e3).fill([a=f,0])).map(([w,e],i)=>(x.fillRect(w,i,9,9),[w+e*i/f+e/9,(e*6+a-w)/9]))

Mar 1 2017 7:29 PM UTC

}// 140/140

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Just a wobbly line.

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u/sfz

was staring at this waiting for something to happen longer than I like to admit XD
u/lionleaf

Amazing. Love these interactive ones
u/iverjo

+1 for the physics :D
u/iverjo

mildly entertaining to play with
u/hamptonio

nice!
u/recursive

I learned something new! Destructuring assignment!
u/iverjo

#interactive
u/katkip

#physics

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gabrielsroka

function u(t) {

with(x)for(i=2e3;t%1<.01&&i--;)e=Math.random,lineWidth=10,strokeStyle=R(r=e()*255,r,r,.5),beginPath(),moveTo(i,0),lineTo(e()*2e3,i),stroke()

Feb 26 2017 4:31 PM UTC

}// 140/140

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a for loop _is_ an if statement

u/gabrielsroka

Based on code written by Casey Reas and Ben Fry. see http://processingjs.org/learning/basic/rando…

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sfz

function u(t) {

for(w=191,c.width=w,i=0;i<w;i+=6)for(j=0;j<w;j+=9)a=String.fromCharCode(10304+Math.random()*w),x.fillStyle=R(j,w*S(t),i),x.fillText(a,i,j)

Feb 25 2017 1:58 AM UTC

}// 138/140

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u/donbright

OHHhh man !!! brilliant!

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mxfh

function u(t) {

c.width=w=1920;π=Math.PI/2;λ=0;r=w/4;for(φ=-π;φ<π;φ+=1/r){λ+=.1;x.lineTo(C(φ)*S(λ-t)*r+w/2,(C(t)*S(φ)-S(t)*C(φ)*C(λ-t))*r+r)}x.stroke()

Feb 20 2017 11:57 AM UTC

}// 135/140

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simple orthographic projection; try some factors on the lat λ and lon φ offsets t

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u/mxfh

simple orthographic projection; try some factors on the lat λ and lon φ offsets t
u/wicktwo

Niiiice!
u/as

i love this one
u/ssg

nice variable names!
u/donbright

so elegant
u/lionleaf

#sphere
u/lionleaf

#d3 . (3d is currently not a valid hashtag)
u/BirdsTweetCodersDweet

#whichwayround #inorout

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julie

remix of d/617 by u/julie

function u(t) {

c.width=2e3;for(i=9;i--;)for(j=9;j--;)x.beginPath(),x.arc(i*250+S(t*i)*99, j*99+C(t*j)*99,50,0,7),x.fillStyle=R(S(t*j*i)*999,0,99),x.fill()

Jan 14 2017 4:48 PM UTC

}// 139/140

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iverjo

remix of d/334 by u/iverjo

function u(t) {

c.width=960;for(i=20;i--;)for(j=12;j--;)x.fillRect(50*i-9*S(A=4*t+i*C(t/8)*.6+j*S(t/8)*.4),50*j+9*C(A),W=25+C(A)/.3,W),x.fill()

Jan 14 2017 4:18 PM UTC

}// 127/140

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