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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katkip

function u(t) {

c.outerHTML=`<svg height="300" width="300"><circle cx="150" cy="150" r="150" fill="#000"/></svg>`;

Apr 23 2020 12:47 PM UTC

}// 98/140

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#circlechallenge

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rodrigo.siqueira

remix of d/36098 by u/rodrigo.siqueira

function u(t) {

x.translate(800,-600)
with(x)beginPath(),arc(0,0,740/(t+1),0,7),fill(),scale(.985,1),rotate(.9+S(t*t)/150)

Aug 13 2026 11:14 AM UTC

}// 106/140

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#tentacles

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lionleaf

remix of d/16791 by u/lionleaf

function u(t) {

c.width|=i=0
x.font='21em monospace'
'I think it is safe now'.split('').map(c=>x.fillText(c,9+(I=i%13)*145,420+S(I+t)*99+399*(i++/13|0)))

Dec 4 2019 3:59 AM UTC

}// 137/140

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zachygreen

function u(t) {

c.width=1920
t*=60
r=20
for(i=0;i<360;i++){
x.fillRect((Math.floor((t)%48)*2-C(i)+1)*r,(Math.floor((t)/48)%27*2-S(i)+1)*r,C(i)*r,S(i)*r)}

Nov 26 2023 7:32 PM UTC

}// 137/140

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robbyg

remix of d/6369 by u/tmcw

function u(t) {

for(i=200;i--;)x.fillText('╲╱'[~~(Math.random()*2)],i*10,t*600)

May 15 2018 2:00 PM UTC

}// 63/140

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Micro #maze

u/magna

57: for(r=i=200;i--;r+=r*t|4)x.fillText('╲╱'[r&1],i*10,t*600)
u/magna

56: for(r=i=2e3;i-=10;r+=r*t|4)x.fillText('╲╱'[r&1],i,t*600)

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jdspugh

remix of d/25012 by u/jdspugh

function u(t) {

x.fillRect(0,0,e=1920,e)
for(i=e;i--;i%5?0:x.clearRect(e/2+(S(i)*(i/e))*(i%e)/2,540+C(i+t/5)*(i>>6)*9,s=3+i/e*9,s))
x.fillStyle='#0022'

Feb 22 2022 5:09 PM UTC

}// 135/140

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Galactic Way

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ArthurThuczsec

function u(t) {

for(i=c.width=1e3;i--;x.lineWidth=.1)x.strokeRect(200+i/2+S(t+i/250)*300,0,50,1e3)

Jun 23 2021 6:16 PM UTC

}// 82/140

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My first dweet.

u/Xen

welcome to the dwitter family!
u/ArthurThuczsec

Thank you
u/donbright

nice work
u/ArthurThuczsec

Thank you this is nice place

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pavel

function u(t) {

for(s=i=16<<!t;i--;x.fillRect(t?X+=C(a=b/.63662):(b=X=576,Y=138,608+i%4*224),t?Y+=S(a):186+(i>>2)*224,s,s))f=frame/7%21
b+=1282675>>f&!(f%1)

Nov 26 2021 8:38 PM UTC

}// 140/140

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Pen Pattern

Show more comments…
u/pavel

Source: https://www.reddit.com/r/oddlysatisfying/com…
u/pavel

1282675 encodes the 'turn right' or 'straight' orders in binary, >>f&!(f%1) checks them on frames when f is an integer.
u/tomxor

Satisfying, looks like a recursive "Bowen Knot"
u/leafyvez

so beautiful
u/rep_movsd

This looks like the traditional "kolam" that Indians traditionally draw in front of the house
u/rep_movsd

Changing that 1282675 makes different patterns
u/leafyvez

u/rep_movsd exactly my thoughts!
u/magna

Awesome!
u/tomxor

-1 b+=468199
u/tomxor

(0b1110010010011100111)
u/tomxor

Oops, you have to flip X and shift it a bit, then it's -1
u/pavel

If you start with 0 and simultaneously replace 0 with 1 and 1 with 001 you will generate this sequence and bigger ones.
u/pavel

Similarly, if you start with 1s and replace s with s1s00s1s and ignore s when drawing.
u/pavel

I invented the second method. The first one I found by putting my hand-made small sequence into https://oeis.org .
u/CalSch

It's the command key but more complex

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prplz

function u(t) {

c.width=w=800
t||(x.fillText(x[f='font']=1+x[f],0,90),d=x.getImageData(0,0,w,w))
for(i=w;i--;)x.putImageData(d,0,S(i/20+t*9)*9+200,i,0,1,w)

Mar 25 2018 4:05 AM UTC

}// 139/140

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u/william

i am legally obliged to say this is good
u/BirdsTweetCodersDweet

d/7455 d/7456 - My remixes of this using Tan :D
u/prplz

cool remixes!
u/prplz

#text

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Axioplase

function u(t) {

c.width=w=2e3;s=8.5,k=99
for(i=0;i<w;i+=s)for(j=0;j<1080;j+=s)x.fillRect(i,j,s*S(9*C(t)+i/k)+s*S(j/k),s*S(9*S(t)+(i+j)/k)+s*C(2*t+(j-i)/k))

Aug 6 2025 3:23 AM UTC

}// 139/140

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Meshy stuff

u/UEZ

nice - looks like parallax scrolling