Random dweets | Dwitter

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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AstonC

function u(t) {

with(x)for(c.width|=q=700;q--;)fillStyle=R(q,q-100,q+20),beginPath(),arc(960+(z=400-q)*C(t-q),540+T(z)*z,1.01**q+5*C(t),0,9),fill()

Mar 15 2018 4:39 PM UTC

}// 132/140

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u/BirdsTweetCodersDweet

with(x)for(c.width|=q=700;q--;)fillStyle=R(q,q-100,2*q-100),beginPath(),arc(960+(z=400-q)*C(t-q),540+T(z)*z,1.01**q+5*C(t)+4,0,9),fill() - a slight bit thicker, butfixed your errors
u/iverjo

Sweet
u/AstonC

Ohhh, thanks, a lot, BirdsTweetCodersDweet. :)
u/magna

Beauty

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xem

function u(t) {

for(Q=O=1920;Q--;x.fillStyle='#'+I*12,x.fillRect(Q,t*60,1,!!I))for(V=W=0,I=99;--I/V;W=Z+Z+_/8e5-1.25)Z=V*W,V=V*V-W*W+(_=Q+t*60*O)/640%3-2.15

Dec 28 2017 9:55 AM UTC

}// 140/140

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Colored, progressive, Mandelbrot tracer. Dwitted with the great help of @veubeke. Even cooler in fullscreen! More info and credits on https://github.com/xem/miniMandelbrot/

u/Xen

Loving the detail :-)
u/E-Mouse

Xem and Xen, confused af

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francis

remix of d/1077 by u/francis

function u(t) {

c.width=1920; /* clear the canvas */
for(i=0;i<360;i++)
x.fillRect(400+c(i)+S(t)*300, 400, 50, 200) /* draw 50x200 rects */

Feb 23 2017 9:17 PM UTC

}// 123/140

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gpolonus

function u(t) {

t||(m=[960,540])
x.fillStyle=R((m[0]+=Math.random()*18-9)*.13,(m[1]+=Math.random()*18-9)/4.23,10)
x.fillRect(...m,50,50)

Mar 30 2023 9:18 PM UTC

}// 120/140

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Random journey of the rect

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rodrigo.siqueira

remix of d/19389 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`sepia(`
for(i=5e3;i--;f(480,540,300,t*i))f=(X,Y,s,r)=>s>77?f(X+s*C(r),Y+s*S(r*2),s/2,C(t+i)-r*5):x.fillRect(X*2,Y,t<3,.8)

Aug 5 2020 12:15 AM UTC

}// 137/140

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Symmetric Ribbons I

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sigveseb

function u(t) {

r=Math.random;r()<.01&&x.restore();x.globalCompositeOperation='xor';for(k in x)r()<.1&&x[k](r()*2e3,r()*2e3,r()*2e3,r()*2e3,r()*2e3,r()*2e3)

Apr 28 2016 6:43 PM UTC

}// 140/140

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tomxor

remix of d/16967 by u/katkip

function u(t) {

eval(unescape(escape`挮睩摴栽㈵㘻挮獴祬攽❦楬瑥爺楮癥牴⠧㭹㴳㭰㴨琬温㴾砮晩汬呥硴⡴⹳畢獴爨〬温ⰳ㘬ㄲ⩹⬫⤻瀨怱〠偒䥎吠∤筍㵠䵅剒夠塍䅓Ⅰ索怬琪㴶⤻瀨怲〠䝏呏‱だⱴⴲ㜩㭰⡠剕习ⱴⴴㄩ㭦潲⡴⨽㈻琭ⴭ㤲㸰㬩瀨䴩`.replace(/u(..)/g,"$1%")))

Dec 26 2019 1:06 AM UTC

}// 140/140

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#basic

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spbyrne

function u(t) {

η=c.width=99;s=x.createImageData(η,η);for(α=0;α<η;α++)for(κ=0;κ<η;κ++){λ=(α*η+κ)*4;s.data[λ]=t/4*λ&0xff;s.data[λ+3]=λ;}x.putImageData(s,0,0)

Feb 27 2017 3:41 PM UTC

}// 140/140

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sigveseb

remix of d/136 by u/sigveseb

function u(t) {

c.width=99;for(X=0;X<99;X++)for(Y=0;Y<99;x.fillStyle=R(0,c=S(t+X*Y+t*9)*255,c),Y++)x.fillRect(X,Y,1,1)

Apr 27 2016 12:34 AM UTC

}// 102/140

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katkip

remix of d/12065 by u/elaborate

function u(t) {

c.width=1920;for(i=0;i<1200;i++){t+=S(i);x.lineTo(1000+T(t+i*3.14)*300,i)};x.stroke()

Feb 2 2019 4:10 PM UTC

}// 85/140

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Broken TV