Dweets awesomed by u/leonarven

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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rodrigo.siqueira

remix of d/11965 by u/pavel

function u(t) {

for(x.fillRect(0,0,i=3e3,i);Q=S(--i*i);x.clearRect(960+150*(S(b)*4+S(i+t)*Q),540+150*(C(i*i)-(t%4>2?T(b+t):S(b+t))),4,4))b=i%6+t+(t%2>1?0:i)

Jan 28 2019 2:40 PM UTC

}// 140/140

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Torus, spheres, flow and bubbles

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u/rnbw

now THIS is a demo!
u/katkip

Yeah he win
u/13thptr

woah
u/joeytwiddle

Superb! Golf the end with i*(t%2>1) or i*!(t&1)
u/rodrigo.siqueira

Thanks @joeytwiddle for the golf trick. i*(t&1) also works and it's even shorter. And I found that t%4>2?... can be converted to t&2?... It works as a counter to change the function each 2 seconds.
u/yonatan

Also, since T and S take the same arguments (t%4>2?T(b+t):S(b+t)) can be (t&2?T:S)(b+t)
u/lionleaf

Wow! Now we're talking
u/vain

Wow, three fx in this tiny code? Great!

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pavel

remix of d/11963 by u/cantelope

function u(t) {

for(x.fillRect(0,0,i=2e3,i);Q=S(q=--i*i);x.clearRect(960*(z+S(b)*3+S(p)*Q)/z,540+960*(C(q)-C(b+t))/z,s=99/z/z,s))z=6+C(b=i%6+t)*3+C(p=i+t)*Q

Jan 26 2019 8:47 PM UTC

}// 140/140

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#uncompressed in black and white

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u/adaq

coolio
u/cantelope

(╯°□°）╯︵ ┻━┻
u/cantelope

this one seems to outperform my original, probably due to all the color calls in mine. One thing I haven't been able to figure out is why the same code performs better on codegolf.tk than dwitter. Not trying to advertise, but it's true and it was just an accidental product of how it was made i guess. E.g. compare d/11913 to https://codegolf.tk/a/366 The code is identical, but on my computer the latter runs visibly smoother. ¯\_(ツ)_/¯ If any plucky ducks want to compare sources, the frontend of codegolf.tk is here https://github.com/srmcgann/codegolf2.0, and the backend: https://github.com/srmcgann/codegolf/blob/ma…
u/rnbw

this is just a wonder to behold
u/joeytwiddle

It's worth investigating cantelope. Someone reported it here: https://github.com/lionleaf/dwitter/issues/4… How can we display framerate on CodeGolf.tk?
u/f8f82804

#d3 #perspective #model

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firegodjr

remix of d/9768 by u/firegodjr

function u(t) {

x.font='3em x'
for(m=j=32;j--;)for(i=63;i--;)x.fillText('◢◣◤◥'[Math.random()*4|0],i*m,j*m),x.fillStyle=R(b=(t*m+(i^(t*m-j)))%99*2)

Jan 26 2019 8:01 PM UTC

}// 130/140

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Fractal Burn

u/joeytwiddle

Noisy triangles remind me of this: https://twitter.com/BalintCsala/status/99216…

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𭰽𞐶𜀬𮁛𩠽𙱦𪑬𫁒𩑣𭀧𧐨𜀬𜀬𪐽𚁣𛡷𪑤𭁨𯀽𜀩𛁩𚐻𪐭𛐻𮁛𩡝𚁷𚰨𤰨𨠩𚠳𚱓𚁰👩𚡩𚱴𚐪𤰨𬐽𪐪𪐪𪐩𚐯𚁚🐶𚱃𚁢𚐪𜰫𠰨𬀩𚡓𚁱𚐩𚡷𛀵𝀰𚰨𠰨𬐩𛑃𚁢𚱴𚐩𛱚𚡷𛁳🐱𚰱𝐰𛱚𛱚𛁳𚐩𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮰨𨠽𪐥𝠫𭀩𚠶𜁽𛀹𞐥𛀶𝐥𨀻`.replace(/u../g,'')))

Jan 26 2019 7:00 AM UTC

}// 140/140

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for(w=960,x[f='fillRect'](0,0,i=(c.width|=0),i);i--;x[f](w+(S(b)*3+S(p=i*i+t)*S(q=i*i*i))/(Z=6+C(b)*3+C(p)*S(q))*w,540+(C(q)-C(b+t))/Z*w,s=1+150/Z/Z,s))x.fillStyle=hsl(${(b=i%6+t)*60},99%,65%

u/adaq

d

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katkip

remix of d/11892 by u/katkip

function u(t) {

c.width*=1;for(i=64;i--;)for(j=60;j--;)
x.fillRect(600+i*20-j*10,j*10+Math.abs(32-i-S(t*5)*9)*5+Math.abs(30-j+C(t*5)*9)*5,10,10)

Jan 19 2019 7:52 PM UTC

}// 128/140

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Resizing the roof! #d3

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leonarven

function u(t) {

c.width|=r=30
for(I=0;I<r*r;x.fill(x.arc(585+r*X,540+r*Y,G*15,0,6)))x.beginPath(X=I-r*(Y=I++/r&255),G=1+S(7*t-Math.sqrt((Y-=12.5)*Y+X*X)/9))

Oct 21 2018 11:05 AM UTC

}// 140/140

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Waves~~

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joeytwiddle

function u(t) {

a='¸„.-”-.„¸',a+=a+a+a+a,a+=a
throw [3,4.5,6,9].map(i=>[...a].map((c,j)=>a[(3*j/i+6*t*i|0)%a.length]).join('')).join('\n')

Sep 2 2018 6:47 AM UTC

}// 122/140

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Out on the speedboat

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u/katkip

another genius
u/sigveseb

Rocks
u/magna

LOL
u/aleamb

coooool
u/donbright

im so confused ha ha ha
u/stiaje

Haha, great!
u/Purpzie

Lmao WHAT
u/joeytwiddle

Inspired by magna's d/9591 and kipkat's d/9501

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jbl

remix of d/5314 by u/jbl

function u(t) {

c.width|=i=300
x.lineWidth=.1
while(--i)q=19+S(t/6)/28*i,x.arc(S(q/3)*i+q*60,(C(q*S(t/2))+4)*i/2+200,(C(q)*60+200)*S(i/96),0,7)
x.stroke()

Jan 4 2018 2:37 AM UTC

}// 138/140

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u/magna

Nice!
u/nystrand

cool!
u/rikardlindstrom

love it!
u/iverjo

It looks organic
u/lionleaf

#balloon #organic #floppy
u/leonarven

Damn that looks impressive, still such simple! :)
u/skeletonNatte

Somehow pretty unsettling

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magna

function u(t) {

// Rendering
}
{
// Initialization
// a) Util function: a=(p,q)=>{
// b) Obj init: a={
// c) Just a code block: {

Oct 2 2017 3:05 PM UTC

}// 113/140

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"Global initialization" hack

u/joeytwiddle

Oooh nice find, but naughty!

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leonarven

function u(t) {

s=S(t),x.fillStyle=R(127+127*s,0,255)
for(i=314;a=i/49,r=2+C(a*3)*s**3,a+=S(t/2),--i;)
  x.fillRect(960+99*r*C(a),540+99*r*S(a),6,6)

Sep 23 2017 9:26 PM UTC

}// 132/140

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thx @lurifax & @cantelope for #3178 and idea to write duplicate without looking your code

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