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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rodrigo.siqueira

remix of d/27032 by u/taupelink

function u(t) {

for(i=1e4;i--;x.fillRect(50*X+X*t*88,32*Y-200,K=4/t,K))Y=i/99-t,X=T(Y*i)*t*i,h=X^Y,(Z=Y/h/t+2)&3,x.fillStyle=R(Z,Z/3,0,t*4)

Feb 13 2023 9:25 PM UTC

}// 123/140

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Beyond the clouds

u/taupelink

123!
u/Xen

this is indeed uncompressed and also tickles my rude parts, nicely done!

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deobfuscate

function u(t) {

x.fillRect(C(t)*frame+910,S(t)*frame+565,100,100)
x.fillStyle=R(Math.random()*255)
x.drawImage(c,C(frame*50)*20,S(frame))

Apr 24 2023 5:06 PM UTC

}// 121/140

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HellCastle #art #drawimage

u/Xen

nice!
u/NoName

woah

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danny@hille.dk

function u(t) {

for(m=Math,c.width=X=99;X--;)for(Y=66;Y--;)a=m.atan2(X-50,Y-30),x.fillStyle=R(X,S((a+S(m.hypot(X-50,Y-30)/-13+t))*5)*99),x.fillRect(X,Y,1,1)

Oct 20 2020 11:36 PM UTC

}// 140/140

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wonky spiral

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cantelope

function u(t) {

w=c.width
x.font=w/3+"px a"
x.fillStyle=R(w,w,0)
x.fillText('★★★',w/9,w/2.6)
c.style.transform=`perspective(300px)rotate3d(0,1,0,${t/3}turn`

Apr 7 2017 1:14 AM UTC

}// 140/140

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u/magna

Thanks! ;)

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rodrigo.siqueira

remix of d/11965 by u/pavel

function u(t) {

for(x.fillRect(0,0,i=3e3,i);Q=S(--i*i);x.clearRect(960+150*(S(b)*4+S(i+t)*Q),540+150*(C(i*i)-(t%4>2?T(b+t):S(b+t))),4,4))b=i%6+t+(t%2>1?0:i)

Jan 28 2019 2:40 PM UTC

}// 140/140

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Torus, spheres, flow and bubbles

Show more comments…
u/rnbw

now THIS is a demo!
u/katkip

Yeah he win
u/13thptr

woah
u/joeytwiddle

Superb! Golf the end with i*(t%2>1) or i*!(t&1)
u/rodrigo.siqueira

Thanks @joeytwiddle for the golf trick. i*(t&1) also works and it's even shorter. And I found that t%4>2?... can be converted to t&2?... It works as a counter to change the function each 2 seconds.
u/yonatan

Also, since T and S take the same arguments (t%4>2?T(b+t):S(b+t)) can be (t&2?T:S)(b+t)
u/lionleaf

Wow! Now we're talking
u/vain

Wow, three fx in this tiny code? Great!

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geb

remix of d/20574 by u/Xen

function u(t) {

for(i=2e3,c.width|=f=g=>(i*t/99)|g(a=i)-420*C(i/3+t)*g(a);i--;)x.strokeRect(1e3+f(C),502+f(S),s=9*S(i/1e3),s)

Nov 11 2020 6:14 PM UTC

}// 109/140

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found some fractals while golfing

u/Xen

i noticed but was far too giddy messing, probs a few decimals from something smooth and defined
u/katkip

beautiful
u/geb

thanks!

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magna

function u(t) {

c.width|=i=64;for(;i--;)for(x.setTransform(1,0,0,1,i%8*240,(i>>3)*135),j=25;j--;)x.fillRect(120+C(t*i/19+j/(i+1))*50,67+S(t+j/4)*50,5,5)

Jan 26 2018 1:04 AM UTC

}// 136/140

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andrea270872

function u(t) {

c.width|=c.onmouseup=_=>{B=-B}
if(t==0)A=B=1
A+=B*.033
for(i=1e3;i--;)x.fillRect((A*2+i)%40*40,~~(i/40)*43,20,i%9)

Mar 24 2019 11:55 AM UTC

}// 114/140

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click to rewind

u/andrea270872

#interactive

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KilledByAPixel

remix of d/32122 by u/Agnes

function u(t) {

c.width|=0
for(i=1e4;i--;x.fillRect(...i<9?[400+i*99+S(t)*300,400,90,200]:[i/5-70,495-94*C(i/72),9,9]))x.fillStyle=R(i)

Jul 15 2024 3:26 PM UTC

}// 119/140

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Wave Maker 〜 #default

u/taupelink

wow!
u/cantelope

neat

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AOctavio

remix of d/18812 by u/AOctavio

function u(t) {

c.width=1920
for(i=0;i<99;i++)
x.fillRect(-15+i*20,500,10,200*S(t+i*6.2))
for(z=0;z<299;z++)
x.fillRect(-75+z*80,500,10,500*S(t+z*6.2))

May 16 2020 12:16 PM UTC

}// 135/140

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