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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farter

function u(t) {

x.fillStyle=R((S(t)+1)*150)
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300, 400, 50, 200)
x.fillStyle=R(0,0,0,0.1)
x.fillRect(0,0,1920,1080)

Mar 4 2017 1:39 PM UTC

}// 140/140

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remix of the default code

u/joeytwiddle

Reminds me of a certain talking car. And also a talking toaster.

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joseprio

remix of d/1861 by u/joseprio

function u(t) {

s=0;for(i=1e6;t>0&&i--;)x.fillStyle=s?"#000":"#fff",x.fillRect(960+S(s)*t*t*80,540+C(s++)*t*t*80,t*8,t*8),t-=.1

Mar 4 2017 1:33 PM UTC

}// 111/140

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joseprio

function u(t) {

with(x){fillStyle=R(s=0);fillRect(0,0,2e3,2e3);fillStyle="#fff";for(i=1e6;t>0&&i--;)fillRect(960+S(s)*t*t*80,540+C(s++)*t*t*80,t,t),t-=.1}

Mar 4 2017 10:27 AM UTC

}// 138/140

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First attempt to make a starfield effect

u/SpecialAgent

very nice!

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donbright

remix of d/479 by u/lionleaf

function u(t) {

c.width=256;for(i=128;i--;)for(j=128;j--;){c=i*i+S(t)*j*j;c=(c<0?-c:c)%128;x.fillStyle=R(S(t+3.1)*c+c,0,S(t)*c+c);x.fillRect(64+i,8+j,1,1)}

Mar 4 2017 7:17 AM UTC

}// 140/140

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A transition from x*x+y*y (the Blue geometry, circles) to x*x-y*y (the Red geometry, hyperbolas). This shows a linkage between Binary Quadratic Forms and the Circles and Squares pseudo Fractal / Moiré pattern. By transitioning between two different Binary Quadratic Forms slowly, I hoped to show that the forms themselves are what form these patterns, not simply circles or hyperbolas or trig functions. Inspiration from many dweets on this site and Wildberger's Chromogeometry.

u/donbright

Binary Quadratic Forms are where you take any combination of x*x, y*y, and 2*x*y, for example 3*x*x+2*y*y (an ellipse), of x*x-y*y/2 (a squished hyperbola)

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LozzaDawg

function u(t) {

c.width=1e3
for(i=0;i<50;i++){w=50+i*40*S(t)
m=50+40*i
x.fillStyle=R(9*i,3*i,105)
x.fillRect(m,(T(t)+1)*m,w,w)
x.fillRect((T(t)+1)*m,m,w,w)}

Mar 4 2017 4:05 AM UTC

}// 140/140

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Pyrofoux

remix of d/1807 by u/fnurgel

function u(t) {

c.width^=0;for(i=2e3;i--;)x.fillStyle=`hsl(`+t*30+`,80%,50%)`,x.fillRect(0,i/2,2e3,S((T(t)*(1e3-i)/500)%360+i/100+S(t)+(i-i%100)*2)/1.5)

Mar 3 2017 4:44 PM UTC

}// 136/140

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SpecialAgent

remix of d/1813 by u/mihte

function u(t) {

c.width^=0
x.font='12em a'
x.translate(800,600)
q=1+S(frame*.1)*.1
x.scale(q,q)
x.fillText("❤️",0,0)

Mar 3 2017 10:06 AM UTC

}// 100/140

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sfz

remix of d/1796 by u/sfz

function u(t) {

c.width|=0
z=~~(t/3)
for(m=7;m>0;m-=.001)X=940*(1+S((z%9+2)*m+t/3)),Y=504*(1+S((z%9+1)*m)),x.fillStyle=R(255*C(m+t*5)),x.fillRect(X,Y,24,24)

Mar 3 2017 1:45 AM UTC

}// 140/140

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hamptonio

remix of d/1763 by u/New_Core

function u(t) {

if(!t)a=new(window.AudioContext)(),o=a.createOscillator(),o.connect(a.destination),o.start(a);o.detune.value=220*S(t+S(t*t))

Mar 2 2017 9:26 PM UTC

}// 124/140

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Remove "a" from "o.start(a)" to begin the annoyance. This golfing tweak to New_Core's should allow for more complexity to be added...

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u/iverjo

116 characters: if(!t)a=new(AudioContext)(),o=a.createOscillator(),o.connect(a.destination),o.start();o.detune.value=220*S(t+S(t*t))
u/iverjo

115 characters: t||(a=new(AudioContext)(),o=a.createOscillator(),o.connect(a.destination),o.start());o.detune.value=220*S(t+S(t*t))
u/iverjo

Room for 25 more characters of fun! :D
u/hamptonio

if(!t){a=new(AudioContext)();o=[];for(i=6;i--;){q=o[i]=a.createOscillator();q.connect(a.destination);q.start()}}o[t%6|0].detune.value+=S(t)
u/hamptonio

multivoice above
u/iverjo

#audio

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Run

function u(t) {

for(i=0;i<1050;i++){
x.fillRect(X=i+S(t+i)*300,400+200*C(t+i)+200*S(X/300),50,50);
x.fillStyle=`hsl(`+(X/7+t*30)+`,80%,50%)`;
}

Mar 2 2017 6:04 PM UTC

}// 127/140

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A series of tubes #bartjs

u/Run

The internet is a series of tubes. This is the opening of just one of them.