Top dweets of all time

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: #Food

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eruonna

function u(t) {

c.width|=0
t?o.push({x:960,y:540,X:C(t*9),Y:S(t*9)}):o=[]
o.map(p=>{x.fillRect(p.x,p.y,9,9),p.x+=p.X,p.y+=p.Y})
o=o.length<999?o:[]

Apr 17 2017 8:33 PM UTC

}// 131/140

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u/donbright

great minds think alike https://www.dwitter.net/d/2159

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donbright

remix of d/2495 by u/joeytwiddle

function u(t) {

t?s=2e3/c.clientWidth:(a=b=B=A=1,k=j=2)
K=k-a
J=j-b
Q=K**2+J**2
x.fillRect(a+=A+=K/Q,b+=B+=J/Q,9,9)
onmousemove=e=>(k=e.pageX*s,j=e.pageY*s)

Apr 15 2017 10:43 PM UTC

}// 140/140

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mouse = gravitational body (explanation https://www.patreon.com/posts/simulating-in-… )

u/joeytwiddle

Nice :) For a few spare bytes, you could place the body with onclick
u/gabrielsroka

#interactive
u/donbright

#physics

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eruonna

function u(t) {

c.width|=0;
x.lineWidth=3;
for(i=0;i<1.57;i+=.01){
  x[i?'lineTo':'moveTo'](960+540*C(17*(t+i)),540+540*S(19*(t+i)))
}
x.stroke()

Apr 14 2017 9:00 PM UTC

}// 129/140

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u/donbright

this boggles my mind

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NMcCoy

function u(t) {

c.width=1920;
  for(i=0;i<9;i++)
{
  x.fillStyle=`hsl(${t*99+i*20},99%,80%`
  x.fillRect(400+i*100+S(t)*300, 400+S(t+i)*60, 50, 200)
}

Apr 14 2017 8:02 PM UTC

}// 134/140

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u/f8f82804

#default

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donbright

function u(t) {

k=t
for(m=-k;m<=k;m++)for(n=-k;n<=k;n++){
r=m*m-n*n,B=m*m+n*n,G=2*m*n
x.fillRect(4*(r+B),4*(G+B),9,9)
}

Apr 14 2017 4:14 AM UTC

}// 103/140

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weird optical illusion after it finishes

u/iverjo

Oh yeah, it looks like there are white horizontal and vertical lines, but they are not actually there
u/joeytwiddle

Oooh yeah. I was only seeing grey dots at the intersections before, but on this bright monitor I can see the white lines too. *blinks*
u/alien

nice
u/Xen

i eat my pillow tonight and i'm blaming you!
u/donbright

lol sorry

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MrM@_S

function u(t) {

if(!t)a=s=0
c.width=c.height=70    
onkeydown=e=>{if(E<a){s++;E=a}a=0}
x.fillRect(10,a,2,2)
a++
x.fillText("Lvl:"+s,30,9)
if(a>=50)E=a=s=0

Apr 13 2017 10:12 PM UTC

}// 138/140

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a small game

u/donbright

made it to 4 woohoo
u/New_Core

to lvl 17
u/MadeOfStarStuff

This is a little maddening. I also made it to level 4 but I have no idea how. Maybe I need to learn javascript. :)
u/iverjo

Got to level 13 ^^
u/Kalanchoe

level 25 :) reminds me of the stacker arcade game haha

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Jenky

function u(t) {

w=c.width=568;r=Math.random
t?0:(m=e=>z=[r()*w,r()*w/2])()
onmousemove=e=>{(e.x-z[0])**2+(e.y-z[1])**2<81?m():0}
x.arc(...z,9,0,7);x.fill()

Apr 7 2017 10:31 AM UTC

}// 139/140

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Try to hover over the circle! Doesn't work in fullscreen :'(

u/Jenky

Did make a more game-like version that did work fullscreen at 190 bytes, kept score and everything, but couldn't golf it any lower
u/Jenky

Also this one only works in Chrome again, thanks to e.pageX/pageY being slightly too long
u/donbright

c.width=568 t?0:(m=e=>z=[f=frame%568,(f<<4)%250])() onmousemove=e=>{(e.pageX-z[0])**2+(e.pageY-z[1])**2<81?m():0} x.arc(...z,9,0,7);x.fill()
u/donbright

that is a firefox version :)

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magna

remix of d/2385 by u/magna

function u(t) {

c.width|=0;for(j=9;j--;)for(i=100;i--;s=S(t),X=i%5+j*10+s*30,Y=i/5|0,x.fillRect(400+X*10+s**8*C(X*Y)*9,400+Y*10+s**8*S(X*Y)*99,10,10));

Apr 5 2017 9:40 PM UTC

}// 135/140

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#default #noise

u/fujimotos

I love it.

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nonce

remix of d/2357 by u/Jenky

function u(t) {

w=c.width|=0
c.style.filter=`hue-rotate(${-t%60}deg`
for(i=0;++i<99;)z=50+i*i/80,x.font=z+`px a`,x.fillText('🌳',(S(i)*w+t*z*4)%(w+z)-z,z*5)

Mar 31 2017 4:47 PM UTC

}// 139/140

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Show more comments…
u/cantelope

Looks great in chrome. seems the filter does not work in ff.
u/cantelope

i see now it simulates the changing of the seasons. very cool!
u/nonce

May I ask what FF are you on? I have FF 52.0.2 (on MacOS) and it seems to work.
u/donbright

color does not work on firefox / ubuntu. 52.0.1 64 bit, however it still looks amazing in black and white! i just love the whole effect of it, brilliant.
u/cantelope

@nonce I checked it in FF 45.8 on Win10 ( screenshot http://lookie.ml/i-12BLJO ), but Chrome is my primary browser. I've noticed that unicode tends to render somewhat inconsistently between browsers, which is why i avoid using it. But it's a great graphical hack when it works. :D
u/nonce

Oh my, it might not be consistent but I almost spat my soda all over my screen when I saw that screenshot.
u/Lazy1337

#landscape
u/Lazy1337

#trees
u/joeytwiddle

2023: working on FF Nightly on Android

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cantelope

function u(t) {

x.drawImage(c,-9,-4,c.width+18,c.height+8)
x.fillStyle=`hsl(${t*99},99%,50%`
s=C(t)*99
for(i=6;i--;x.fillRect(960+S(++t)*s,540+C(t)*s,9,9));

Mar 30 2017 3:49 AM UTC

}// 140/140

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inspired by the recent work of others. not sure who to credit. everyone i guess!

u/cantelope

looks like nonce might have been the pioneer of this technique. cheers!
u/recursive

Looks like Winamp visualizations ca 2000
u/donbright

cool beans