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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jebouin

function u(t) {

t*=4,a=960,b=540,c=128;for(i=0;i<2*b;i++){x.fillStyle=R(C(t*3)*c+c,C(t+2)*c+c,C(t+4)*c+c);x.fillRect(C((i|2)-S(t))*b+a,S(t+i)*b+b,c,9)}

Feb 24 2017 2:21 PM UTC

}// 135/140

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gormisdomai

remix of d/1184 by u/gormisdomai

function u(t) {

c.width=1920;
for(i=0;i<200;i++)
x.fillRect(950+T(t+i)*200, 0, 5, 2000)
for(i=0;i<200;i++)
x.fillRect(0, 350+T(t+i)*200, 2000, 5)

Feb 24 2017 2:18 PM UTC

}// 129/140

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u/donbright

brain freeze!
u/gormisdomai

"Dislocation #2"
u/katkip

#tagfail

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Drum

remix of d/683 by u/mxfh

function u(t) {

c.width=w=1920;π=Math.PI/2;λ=2;r=w/4;for(φ=-π;φ<π;φ+=.5/r){λ+=.3;x.lineTo(C(φ)*S(λ-t)*r+w/2,(C(t)*S(φ)-S(t)*C(φ)*C(λ-t))*r+r)}x.stroke()

Feb 24 2017 11:42 AM UTC

}// 136/140

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u/iverjo

#sphere

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5Mixer

function u(t) {

y=(h=999)/2;i=w=c.width=h*2;
while(i--){x.fillStyle=R(i/7,(w-i)/7,i)
o=(h-i)%y
l=C(o*4)*(o%(w/(S(t)*9)))
x.fillRect(i,y+S(i/w*9+t)*99,1,l)}

Feb 24 2017 10:28 AM UTC

}// 140/140

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Some interesting tricks - I use a backwards while loop, not sure if this is shorter. To go from screen width to 256 for colours, I divide by 7. Alot of variable reuse. First one, enjoy heh :)

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323454

function u(t) {

t=t*10
x.lineTo(Math.abs(S(t))*t*10, Math.abs(C(t))*t*10)
x.stroke()

Feb 24 2017 7:24 AM UTC

}// 68/140

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u/fson

Like a spider weaving a web.

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Norgg

remix of d/1089 by u/Norgg

function u(t) {

w=1e3;h=600;r=Math.random;c=C(t);for(i=0;i<99;i++){x.strokeStyle=R(t,0,i*r(),0.1);x.strokeRect(w+t*S(t)*i/9e3*w,h+c*h/2,c*r()*20,c*r()*20);}

Feb 23 2017 9:59 PM UTC

}// 140/140

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u/donbright

awesome slow burner. really builds up an interesting pattern.
u/joeytwiddle

#wait_for_it #generative

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Renaud___

function u(t) {

a=2500;h=f=i=g=210;y=Math.PI/3;while(f++<5*a){for(e=4,z=2;z<a;z*=4)f%z==z/2?e=1:0;i+=e;x.lineTo(g+=C(y*i),h-=S(y*i))}x.fill()

Feb 23 2017 5:41 PM UTC

}// 125/140

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travis

remix of d/962 by u/travis

function u(t) {

for(i=0;i<23;i++) { //fun2
x.fillStyle=R(i*10,S(t)*50+100,C(t)*50+100,0.69);
x.fillRect(51+i*75+C(t)*300, (C(t*i*0.29)*500)+550, 47, 47);
}

Feb 23 2017 3:44 PM UTC

}// 139/140

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sfz

function u(t) {

for(l=0,a=t*5e2,z=9,j=1e3,k=2e3,d=a%z,v='stroke';l<9e2;l+=7){x.beginPath();x[v+'Style']=R(l/d,l,l*d);x.arc(S(l)*a%k,C(l)*a%j,l,0,7);x[v]()}

Feb 23 2017 12:44 AM UTC

}// 139/140

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Oops, could have saved 8 more chars

u/iverjo

Playful :)
u/Qwitter

that is a stable style

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ssg

function u(t) {

x.fillStyle="#816";x.fillRect(0,0,1920,1080);x.font="1400px impact";
x.fillStyle="#fea";x.fillText("arteffect",S(t)*1920-1800,1200+C(t)*400)

Feb 22 2017 7:11 PM UTC

}// 140/140

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u/sigveseb

141 characters? :O
u/sigveseb

What, now it says 140. Must be a bug in dwitter o.O
u/ssg

@sigveseb yeah it says 141 to me too now :)
u/c64skate

probably caused by \r\n, typical :)