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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DavidHaring20

function u(t) {

for(c.width|=i=270;--i;x.fillStyle=R((e=5*S(t)*C(i/44+t))*255),x.fillRect(-!x.rotate(e),i*0.6,8,8))x.setTransform(3,0,0,3,960,540)

Mar 24 2021 9:17 AM UTC

}// 130/140

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Remix

u/erin

could you please use the remix button instead of copying + pasting? thnx

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cshadows

remix of d/13920 by u/WasifBoomz

function u(t) {

if(t==0)a=b=0
if(b==0)a+=50
if(a>2200)b=1
if(b==1)a-=50
if(a<-300)b=0
c.width=1920
x.arc(a,540,Math.random()*3000,1,9)
x.fill()

Jun 13 2020 1:13 AM UTC

}// 127/140

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unwiredben

function u(t) {

a=t*60|0;b=a%52;c=a/52;c=(c|0)%18;
x.fillStyle=R(a%255,0,0)
x.font="80px courier"
x.fillText(Math.random()>.5?"/":"\\",b*36,c*60+60)

May 12 2017 4:10 PM UTC

}// 132/140

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u/jick

Nice.

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moo5561

function u(t) {

with(x)font="95px a",fillText("hello",10,200),fillText("my name is moo5561 and this is a birus platform",10,300),fillText("goodbye.",10,400)

Jul 16 2026 4:49 AM UTC

}// 140/140

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very cool message

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Flopster

remix of d/4893 by u/mmagin

function u(t) {

c.width|=0
x.font="200px Arial"
for(i=0;i<1.5;i+=.25)
x.fillText("⚽", 100+1000*i, 1000-850*Math.abs(S(t-i))**.9)

Dec 30 2017 11:50 PM UTC

}// 112/140

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A demonstration that abs(sin(x))**.9 is a good compact approximation of bouncing.

u/lionleaf

Nice! that's a useful trick! Why not just abs(sin(x)) though?
u/magna

**.9 compresses the curve and makes the restitution look more realistic.
u/Flopster

See https://www.desmos.com/calculator/oxuakmyuko.

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metamero

remix of d/15478 by u/metamero

function u(t) {

throw a++}{a=0

Aug 21 2019 1:56 PM UTC

}// 14/140

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14B cheater init demo (only works after posting)

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KilledByAPixel

function u(t) {

f=frame
r=f*99
for(i=k=r>>4<<1;f<6&&i--;x.fill())for(x.beginPath(j=4);j--;)x.arc(960+r*S(a=i/k*710),540+r*C(a),28,b=j*33+95+(f%2*2-1)/3-a,b)

Feb 19 2026 8:00 PM UTC

}// 140/140

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False Spiral Illusion 🌀

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Toby

remix of d/25405 by u/TorusField

function u(t) {

x.fillStyle=`hsl(${S(t)*360} 50% 50%`
for(i=0;i++<19;)
x.fillRect(i*100+S(t*t*t)*30-100,500*S(t)+520,t/10,15)

May 3 2022 10:05 AM UTC

}// 109/140

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taupelink

remix of d/26799 by u/taupelink

function u(t) {

for(i=5e3,k=128;i--;x.fillRect(X,Y,.8**t,(X&k)==(Y&k)&(((a*a-b*b)**2-2e6)**2<3e12^a*a>k^b*b>k)))X=i**3*t%2e3,Y=i*i/t%1080,a=X%k-64,b=Y%k-64

Jan 15 2024 4:01 AM UTC

}// 139/140

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Prompt: Inspired by Islamic art. #genuary #genuary17 #genuary2024

u/taupelink

d/29328

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Xor

function u(t) {

c.width=a=960;for(i=0;i<a;i+=5)x.fillRect(S(i+t)*i/2+a/2,i,9,9)

Apr 28 2021 4:55 AM UTC

}// 63/140

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Tree

u/Xor

Try incrementing by 4 or 6!
u/andrea270872

nice... for some reason 5.2 works also nicely :D