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.

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Jenky

function u(t) {

n=512;r=6.28;for(i=t;i<t+r;i+=r/30){z=i+t;a=-S(i);b=-C(i);x.fillStyle=R(C(z)*n,C(z+r/3)*n,C(z+4.18)*n);x.fillRect(960+S(t)*a*n,n+b*n,9,9)}

Feb 26 2017 8:17 AM UTC

}// 138/140

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Rainbow experiment without 'hsv()'

u/donbright

this is really nice
u/sfz

purdy

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sfz

function u(t) {

for(i=1,l=255;i<l;i++)j=t%9*i,k=i*t%l,m=S(t+j),x.font=j+'px a',x.fillStyle=R(i,k,l-i,m/i),x.fillText('❖',900+j*m*S(i*j),540+j*C(t+i)*S(t-j))

Feb 26 2017 7:38 AM UTC

}// 140/140

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u/sigveseb

watch this for a while, worth the wait!
u/iverjo

Fascinating

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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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khalkeus

function u(t) {

w=960;h=540;c.width=w*2
for(i=0;i<99;i++){for(j=0;j<99;j++){
x.fillRect(S(i-j)*C(t+j)*w+w,S(i+j)*S(t+j)*h+h,5,2)}}

Feb 24 2017 10:38 PM UTC

}// 114/140

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u/Purpzie

Shaved off 12 characters: for(c.width|=a=0;a<9801;)x.fillRect(S((i=0|a++/99)-(j=a%99))*C(b=t+j)*960+960,S(i+j)*S(b)*540+540,5,2)

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fson

function u(t) {

X=960;Y=540;c.width+=0;x.lineWidth=23
x.arc(X,Y,50,0,7);x.fill()
for(i=t;i<t+4;i++)x.beginPath(),x.ellipse(X,Y,250,99,i*1.04,0,7),x.stroke()

Feb 23 2017 1:31 PM UTC

}// 140/140

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u/iverjo

Clean
u/Kalanchoe

so perfect!

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jasonbdly

function u(t) {

d=x.createImageData(w=c.width=256,144)
d.data.map((v,i,a)=>{a[i]=(i/.01%w-128)**2*C(t)**2-(i/2/w+32)**1.5*S(t)*S(i)});x.putImageData(d,0,0);

Feb 23 2017 6:31 AM UTC

}// 140/140

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recursive

remix of d/887 by u/New_Core

function u(t) {

t||((I=new Image()).src="https://is.gd/aYk0fZ")
x.fillRect(0,0,z=5e5,z)
for(i=960;i--;)x.drawImage(I,0,t*60-z/(250+i),w=640,1,w-i,i,w+i*2,1)

Feb 22 2017 6:42 PM UTC

}// 140/140

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Got a black backgrounhd

u/lionleaf

Awesome! Give it some time to start ;)
u/New_Core

nice =)
u/ximavus

Broken now :|

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sigveseb

function u(t) {

c.width=512;x.beginPath();x.translate(256,128);(a=b=>{b&&a(b-1);x.rotate(1+S(t/99));x.lineTo(C(t+b/90)*b/8+b/4,9+S(t)*99)})(512);x.stroke();

Jul 21 2016 10:40 PM UTC

}// 140/140

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u/iverjo

Cool! If you had to give this a name, what would it be?
u/sigveseb

Dweety McDweetface
u/iverjo

lol
u/iverjo

Swirly McSwirlface

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iverjo

remix of d/286 by u/iverjo

function u(t) {

t=t%4;if(t<.1)r=X=Y=0,W=c.width=960,H=540;for(i=W*4;i--;)x.fillRect(X=(X+S(r+=.5-Math.random())%W+W)%W,Y=(Y+C(r)%H+H)%H,A=5/(1+t*9),A)

Jul 21 2016 1:21 PM UTC

}// 134/140

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u/sigveseb

almost looks like a map!
u/joeytwiddle

Whoa! When I was younger I used to have nightmares about this damn thing. I would clean it all away but then it would come creeping back. Weird that you found it in 2016!
u/iverjo

#random

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iverjo

function u(t) {

c.width=198;X=Y=99,a=0,d=9;for(i=0;i++<30;)x.beginPath(),x.moveTo(X,Y),x.lineTo(X-=d*S(a),Y-=d*C(a)),d*=.9,x.stroke(),a+=S(2*t-i/12)/3

Jan 8 2016 1:22 AM UTC

}// 134/140

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u/stiaje

Nice blurring!
u/iverjo

The blur wasn't meant as a part of the effect. I believe it was done as a compromise to save a few bytes at a point during the process of creating the dweet
u/katkip

#plant