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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username

remix of d/4139 by u/AliYil

function u(t) {

for(i=0;i<20;i++)for(j=0;j<12;j++){s=S(S(t)*i+j+t*10)*25+25
k=127
x.fillStyle=`hsl(${k**S(t)*9} 99%50%`
x.fillRect(i*100-s,j*100-s,s*2,s*2)}

Sep 21 2018 8:34 PM UTC

}// 140/140

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taupelink

remix of d/26494 by u/taupelink

function u(t) {

eval(unescape(escape`景爨椽㈵㘻椭ⴾ㤹㭸⹦楬氨⤩搽琪⩴ⱸ⹢敧楮偡瑨⡸⹦楬汓瑹汥㵒⡩⭩⩓⡺㵩⩩⤬椫椪匨琩⩃⡺⤬椫椪䌨琩⩃⡺⤬琯搯㘰⤩ⱸ孤☱㼧牥捴✺❡牣❝⡩⼶┹⨲㐰⭩⩃⡺⬽琩Ⱪ┷⨱㠰⭩⩓⡺⤬栽椯搬栬栫ㄫ琩`.replace(/u([^D].)/g,'$1%')))

Nov 23 2022 4:20 AM UTC

}// 140/140

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d/26510

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katkip

remix of d/13388 by u/katkip

function u(t) {

t||(q=1);f=frame;for(i=-109;i++<108;)
x.fillStyle=S(q)*i/f>T(f*f-i*i)/i
?R():'#fff',x.fillRect(f*5,i*5+540,5,5)

Apr 25 2019 10:26 AM UTC

}// 111/140

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Disintegration

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Agnes

remix of d/33302 by u/tzador

function u(t) {

M=_=>~~(Math.random()*6-3)
c.x??=960
c.y??=540
x.filter='hue-rotate('+t+'deg)'
for(i=99;i--;)x.fillText("🤣",(c.x+=M())%1920,(c.y+=M())%1080)

Feb 11 2025 10:49 AM UTC

}// 140/140

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roflwalk

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LimeLaser

function u(t) {

f=60*t|0
u=f/1080
v=1-u
w=(b,c,d)=>255*(3*v*v*u*b+3*v*u*u*c+u**3*d)
x.fillStyle=R(w(0,1,1),w(.7,1,0),w(1,0,0))
x.fillRect(0,f,2e3,1)

Apr 28 2024 4:35 AM UTC

}// 132/140

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Bezier Sunset Gradient

u/cantelope

"bezier" tho? 🤔
u/andrea270872

Perhaps the function w is based on a Bezier curve between 4 points?
u/andrea270872

(like they say here... https://javascript.info/bezier-curve )?
u/LimeLaser

Yeah, the w function should be a cubic Bezier evaluation, but I had to cut out the a*v**3 term to fit the character limit.

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Agnes

function u(t) {

with(x)t?(drawImage(c,-965,-545,1930,1090),rotate(t),fillStyle=`hsla(${40*t},50%,50%,.1)`,fillRect(20*S(t),20*C(t),t,t)):translate(960,540);

Feb 23 2018 9:40 PM UTC

}// 140/140

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yonatan

remix of d/7461 by u/Agnes

function u(t) {

c.width|=0
a=Math.abs
for(i=99,s=400;i--&&s>10;s/=a(C(t))+a(S(t)))x.setTransform(A=S(t*i),B=C(t*i),-B,A,960,540),x.strokeRect(-s,-s,s*2,s*2)

Mar 25 2018 5:08 PM UTC

}// 140/140

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https://askalice.me/twojs-paradox-fractal/

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rodrigo.siqueira

remix of d/26302 by u/rodrigo.siqueira

function u(t) {

for(m=3e3;m--;x.fill())x.beginPath(x.fillStyle=R(j=m**S(m/99+t),i=m%200,m/j*5,150/j/i)),x.arc((o=i|j)*C(m)+940,o*S(m)+540,i*j/99,m,m+m%9)

Oct 17 2022 5:36 PM UTC

}// 137/140

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Kaleidoscope

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username

remix of d/9645 by u/username

function u(t) {

for(i=x.shadowBlur=99,n=999;i--;x.shadowColor=`hsl(${t*i} 99%50%`)x.fillRect(i*99+S(t)*n-n,C(t)*i*99,99,n)

Sep 3 2018 4:15 PM UTC

}// 106/140

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dark

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katkip

function u(t) {

f=x=>C(x/8.1)*S(x/5);t||(X=Y=s=3);for(i=99;i--;)x.fillRect(960+X*s,50+Y*s,2,2),Y+=f(X),X+=f(Y);s-=.0001

Apr 14 2019 3:48 PM UTC

}// 103/140

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#attractor #curve #math