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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metamero

remix of d/16248 by u/Xen

function u(t) {

x.globalCompositeOperation='xor'
x.fillRect(0,!x.drawImage(c,z=t?-z:1,1),z,z)

Oct 23 2019 3:16 PM UTC

}// 77/140

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77 byte remix #gameoflife #sierpinski

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rodrigo.siqueira

remix of d/28726 by u/rodrigo.siqueira

function u(t) {

eval(unescape(escape`󨼮󬽴󮝬󩜮󩭩󫍴󩝲󟝠󪝮󭭥󬭴󚍠󒭸󛭦󪝬󫍓󭍹󫍥󟝒󚌷󜌬󜌬󞌹󚜊󩭯󬬨󨜽󨬽󭌬󪜽󞝥󝌻󪜭󛜻󨜫󟜨󬬽󪜯󨬦󪜥󜬩󚬲󛬹󚽢󚭓󚍡󛼲󚽲󚜯󜼰󛝡󚭡󛼴󛍢󟝢󛼱󛬱󝜫󠼨󨜪󜼩󚬵󚝸󛭦󪝬󫍒󩝣󭌨󨬪󜜷󝜭󞜬󨜪󝝥󜼭󜝥󜼬󛬱󛍴󟌱󚜬󮌮󩭩󫍬󤭥󨽴󚍔󚍩󚭢󛽴󚜪󪜪󞌬󪜬󜜬󭌼󜬩`.replace(/u../g,'')))

Oct 20 2023 1:15 PM UTC

}// 140/140

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Plants on a distant Earth

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fons

remix of d/6998 by u/snydej

function u(t) {

for(q=t,i=3;i--;x.fillRect(0,0,f=85,f,x.fillStyle=`hsl(${500*t},99%,${f}%`))x.setTransform(s=S(q),C(q),S(q-=2.1),C(q),t%8*250,990*S(t/2)**2)

Feb 19 2018 10:55 PM UTC

}// 140/140

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tripping

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anotherkitten

remix of d/20214 by u/rodrigo.siqueira

function u(t) {

c.width+=X=Y=Z=f=.008
for(i=7e3;i--;x.lineTo(980+800*X*C(t)+Y*S(t)*300,300-Z*4e3))
X+=Y*Z,Y+=X-Z/6,Z+=(f-X*Y+f*Z*X)/15
x.stroke()

Oct 7 2020 5:39 PM UTC

}// 129/140

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three pronged attractor

u/anotherkitten

#attractor

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BriSeven

function u(t) {

!t?X=[]:0;for(i=99;i;)o=X[i],X[i]=(o+Math.random()*8-4)%2e3||1e3,x.fillStyle=R((d=119*i)%256,d/1.4%256,d/7%256,.5),x.fillRect(o,X[--i],8,8)

Dec 23 2016 12:45 AM UTC

}// 139/140

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u/iverjo

To save one character (avoid the exclamation mark), you can do t?0:X=[]; or X=t?X:[];
u/BriSeven

ah yes, thank you

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Qwitter

function u(t) {

w=c.width=32;P=t^0;x.fillRect(0,0,w,w);x.fillStyle="#2c5";for(k=w;k--;)(f=2**k,P&f&&x.fillRect(k,1,1,1),1e3*(t-P)&f&&x.fillRect(3*k,3,3,1))

Jan 24 2021 5:20 PM UTC

}// 139/140

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Binary Clock: good till t (sec) hits the 32nd bit. ms below

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BirdsTweetCodersDweet

function u(t) {

x.fillStyle=`hsl(${t*90},50%,50%)`
x.fillRect(940+S(t%3)*300,550+C(t)*290,20,20)
x.fillRect(940+S(-t%3)*300,550+C(t)*290,20,20)

Jan 21 2018 3:50 PM UTC

}// 127/140

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Bouncing, random-ish arcs from point to point on separate sides. Let it run and enjoy the patterns :D

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initramfs

remix of d/22914 by u/initramfs

function u(t) {

Y=c.width|=c.style.filter=`invert(1`
for(X=40060;X--;x.lineWidth=1)
x.lineTo(+X+C(Y)*S(t)*.001,Y=500+S(X)%C(X)*9000**C(X/999-t))
x.stroke()

Jun 1 2021 1:43 AM UTC

}// 139/140

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crazyrems

function u(t) {

for(i=1;i<80;i+=.5){q=50*i;x.setTransform(q,0,S(t),6,t*q%q+900,0);for(p=-4;p<3;p++){x.fillStyle=R(0,900/i,80);x.fillRect(p,0,3/i,200)}}

May 10 2020 5:42 PM UTC

}// 135/140

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Infinite coridors

u/magna

Stylish!
u/joeytwiddle

Newton's Cradle meets dance party glowsticks

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Agnes

remix of d/32115 by u/KilledByAPixel

function u(t) {

c.width|=0
for(i=1e4;i--;x.fillRect(...b?[i/5-70,480+40*C(i/25),9,9]:[100*(3*S(t)+4+i),400,50,200]))w=i<35?29:34,x.fillStyle=R(b=i>8&&i)

Jul 15 2024 12:46 PM UTC

}// 136/140

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The illusion doesn't work behind a default :(

u/magna

#default