Dweets awesomed by u/enoua5

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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sandromiccoli

remix of d/5854 by u/sandromiccoli

function u(t) {

c.width=2e3;x.globalCompositeOperation='xor';for(i=~~(t*9);i--;){a=i*.52;x.beginPath();x.arc(960+C(a)*199,540+S(a)*199,199,0,7);x.fill()}

Jan 13 2018 3:30 AM UTC

}// 137/140

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little donut remix: d/5999

u/iverjo

#xor

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corruptio

remix of d/5600 by u/p01

function u(t) {

for(i=h=432;i--;x.fillRect(h+(h/i-1)**.5*S(t-i)*i,i,9,44))x.fillStyle=R(v='㓀职뿽흟�巶涷溲疗恋ᑐㆇന䁓ꘐ㒄␅਩先р蠂'.charCodeAt(i/16)>>i%16&1,v*h,99,C(t-i))

Jan 8 2018 9:44 AM UTC

}// 140/140

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Show more comments…
u/aemkei

🌎 😍
u/p01

Fantastic job! Love the use of the cos(t-i) aka backface culling as alpha value of the fillStyle to sort the splats and skip clearing the whole canvas. That was THE killer optimization to fit in 140 chars.
u/sigveseb

Wow! ACE
u/donbright

:O
u/lionleaf

Amazing!
u/Teijou

Does it JS or another language?
u/fusty

Wow . . . how?
u/fusty

It would be amazing if you could post an expanded, commented version along with your 140 character versions on this site.
u/oldspork

I'm completely new to all coding and just found out about this amazing community; how on Earth do these symbols code for a globe?
u/hg

oldspork These symbols are just what unicode decides his binary data can best be represented as in text. The real magic is the charCodeAt part of their code.
u/iverjo

#sphere #earth #globe

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p01

function u(t) {

for(i=h=c.width=432;i--;)C(t-i)>0&&x.fillText('.⬤'['榁翻꺿듻ퟝ믭󫥤큰삗⢠挎ᩐ肦䰠椉䠊ᑒꊐࢀင'.charCodeAt(i/16)>>i%16&1],192+(i*h-i*i)**.5*S(t-i)/2,i/2+9)

Jan 5 2018 8:35 PM UTC

}// 137/140

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AND THE WORLD GOES ROUND 🌏🌍🌎

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u/Xen

nice :-)
u/xem

what an achievement!
u/aemkei

You made it! 🙇
u/nystrand

W🌎W !
u/sigveseb

up to the top of the frontpage you go!
u/lowpoly

Wow, your work always inspired me :)
u/trupples

Wow, congratz! I tried doing this but failed miserably lol. Awesome work
u/Renaud___

Nice work !! :)
u/donbright

beautifuyl
u/aemkei

Now with color: d/5747 by u/corruptio.
u/iverjo

#sphere #earth #globe
u/vain

Wow! Insane! Nice to see you here, P01 :-) greetz

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RomanW

remix of d/5233 by u/RomanW

function u(t) {

z=34;f=(60*t)%960;'ȏ܀လa8๼0৷耠ĻƟ臿ﰿ聛＝〇ﾛ态繨ﰀε＀Əﾀ؇￠ᨃ￠簁｠㼀＀羀羀翀⟀῀㏠࿀ᇰϠᡰǰ࠸xࠌ࠘ం耄᠀〆㠀ข瀡Ǡ耿'.charCodeAt(f/16)>>f%16&1&&x.fillRect(f%31*z,~~(f/31)*z,z,z)

Jan 2 2018 4:12 PM UTC

}// 140/140

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u/Pjaerr

That's cool.
u/Chipnstein

Was expecting dickbut... not exactly disappointed but still cool
u/aemkei

OMFG! This is incredible!!
u/aemkei

but shorter but ugly: f=60*t;x.fillRect(f%31*9,f/3,'ȏ܀လa8๼0৷耠ĻƟ臿ﰿ聛＝〇ﾛ态繨ﰀε＀Əﾀ؇￠ᨃ￠簁｠㼀＀羀羀翀⟀῀㏠࿀ᇰϠᡰǰ࠸xࠌ࠘ం耄᠀〆㠀ข瀡Ǡ耿'.charCodeAt(f/16)>>f%16&1,9)
u/RomanW

Nice aemkei, thanks!
u/oldspork

This is amazing. I'm brand-new to coding and very new to Dwitter; how on Earth do all of those symbols and letters code for a picture of the Earth?
u/RomanW

Hi oldspork! The magic happens with the function charCodeAt. This function gets the numeric value of one character at a time. Since these are UTF-16 characters, you can get 16 bits of information in one character.
u/lionleaf

#globe #earth #bitmap #pixelart
u/Purpzie

Is there an easy way to make these kinds of things? (specifically how the data for each pixel is stored)
u/dsamarin

String.fromCharCode.apply(null, new Uint16Array(34).map((r) => Math.random()*0xffff))

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Yogeshp3

function u(t) {

c.width=1920;r=450;i=U=.0314;p=(i,f)=>r+r*f(U*i);for(;i<200;){n=i*t%200;x.stroke(new Path2D(`M${p(i,C)} ${p(i++,S)} L${p(n,C)} ${p(n,S)}`))}

Jan 2 2018 10:45 AM UTC

}// 140/140

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Modular multiplications around the circle..

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crimbles

function u(t) {

t||x.translate(980,540)
for(var i=0;i<1500;i++){
x.fillStyle=R(C(t/i)*i,S(i/t)*i,T(t)*i)
x.fillRect(i,t,S(t)*2,C(t)*i);x.rotate(S(T(i/t)))}

Jan 2 2018 8:12 AM UTC

}// 139/140

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The longer you watch, the weirder it gets

u/sigveseb

Rocks
u/iverjo

Novel!

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travisdoesmath

function u(t) {

a=256;b=8
for(i=1;i<128;i++) {
  x.fillStyle = R(60*t%a,120*t%a,180*t%a)
  x.fillRect(((60*t^i)%128)*b+448, 28+i*b, b, b)
}

Jan 2 2018 2:35 AM UTC

}// 124/140

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u/nickd3000

This is really cool, nice magic to find the x Coordinate
u/Xen

love it

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BackendForth

function u(t) {

c.width=1920;
for(i=0;i<=9;i++)
{
q=.628*i+t
x.fillRect(960+500*C(q),540+300*S(q),139,39)
}
w=C(t*5)
x.arc(1510,403-119*w*w,39,0,7)
x.fill()

Jan 1 2018 4:16 PM UTC

}// 140/140

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Show more comments…
u/mohd-akram

Almost there!
u/joeytwiddle

Is this social commentary?
u/Xen

nice idea :-D
u/donbright

@joeytwiddle lol
u/iverjo

"The American Dream"
u/joeytwiddle

Reminds me of https://vimeo.com/198802302#Vicious_Cycle
u/magna

Golfed to 123 chars: https://www.dwitter.net/d/5270
u/iverjo

#bounce

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donbright

remix of d/1232 by u/iverjo

function u(t) {

a=2e3;c.width=a;for(i=2*a;i--;)p=S(t)*i/a+i%4/.637,d=C(p)-S(p),d>0&&x.fillRect(a/2+99*(S(p)+S(t)),i/4,99*d,1/(d+1)),x.fillStyle=R(i/9,d*a/8)

Feb 25 2017 1:54 AM UTC

}// 140/140

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u/iverjo

Nice :) Better colors than mine
u/iverjo

By saving golfing 2 characters I managed to make the twister bigger:
u/iverjo

c.width=a=2e3;for(i=2*a;i--;)p=S(t)*i/a+i%4/.637,d=C(p)-S(p),d>0&&x.fillRect(a/2+199*(S(p)+S(t)),i/4,199*d,1/(d+1)),x.fillStyle=R(i/9,d*a/8)
u/iverjo

A little more movement: c.width=a=2e3;for(i=2*a;i--;)d=C(p=S(t)*i/a+i%4/.637)-S(p),d>0&&x.fillRect(a/2+199*S(p)+399*C(t),i/4,199*d,1/(d+1)),x.fillStyle=R(i/9,d*a/8)
u/donbright

wow that is awesome!!! i really do miss how yours spins all the way around.
u/donbright

#twister

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iverjo

remix of d/89 by u/iverjo

function u(t) {

c.width^=0;for(i=5e3;i--;)p=3*t+S(t/2)*i/3e3+i%4/.637,d=C(p)-S(p),d>0&&x.fillRect(960+199*S(p)+249*S(t/.7+i/6e3),i/4-2,199*d,1/(d+1))

Feb 24 2017 6:50 PM UTC

}// 133/140

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u/SpecialAgent

nicely done!
u/Kalanchoe

Flawless!
u/donbright

oh wow, the shading!
u/sigveseb

Good twister! Can we add color?
u/iverjo

Color would be awesome :) Feel free to try to add it
u/sigveseb

https://www.dwitter.net/d/1267 red
u/iverjo

Here's a purple version. Had to make some compromises. https://www.dwitter.net/d/1278
u/donbright

i attempted a rainbow version https://www.dwitter.net/d/1282
u/iverjo

#twister
u/vain

nice twister

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