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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Xen

remix of d/29149 by u/danny@hille.dk

function u(t) {

i=t*99;x.fillRect(960-i+(w=63&i),i,i+i,1)

Dec 18 2023 8:53 PM UTC

}// 41/140

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abruptly abstract 41 remixx

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RespectDeniedExplodedDefended

function u(t) {

x.fillRect(t*t*10,100,10,C(t)*100);
x.fillRect(t*t*10,100,10,S(t)*100);
x.fillRect(t*t*10,100,10,T(t)*100);

Dec 27 2017 7:33 PM UTC

}// 107/140

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crzy

function u(t) {

for(i=0;i<50;i++)for(j=0;j<50;j++)x.fillStyle=`rgba(${S(i+j+t)*9},${C(i+j+t)*9},0,.5)`,x.fillRect(i*35+S(t+i+j)*17,j*35+C(t+i+j)*17,17,17)

Jul 26 2023 1:00 AM UTC

}// 139/140

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tomxor

remix of d/25593 by u/KilledByAPixel

function u(t) {

for(i=1e3;i--;b=a)a=u[j=i%461]||[960,540],x.fillRect(a[0]+=0|3*S(r=j*1.0472),a[1]+=0|3*C(r),u[a]?u[j]=[...b]:u[a]=2,3)

Jun 8 2022 3:56 PM UTC

}// 118/140

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Smoler Isometric Divisions

Show more comments…
u/tomxor

Seems to be easier to find good results if j=i%461 is restricted to primes.
u/pavel

-4 for(i=1e3;i--;x.fillRect(a[0]+=3*S(r=j/.955)|0,a[1]+=3*C(r)|0,u[a]?u[j]=[...b]:2,u[b=a]=3))a=u[j=i%461]||[960,540]
u/KilledByAPixel

nice!
u/pavel

Weirdly the numeric error from approximating pi/3 seems to matter a lot.
u/tomxor

Yeah, I think it's because it causes a deviation in the sequence at j=0. Although the output of 0|3*C(r) generally gives the expected low period of +1,+2,+1,-1,-2,-1 as j decrements, it ends on a 3, but only when using lower precision PI/3. full precision PI/3 pushes all of the 2s into 3s, which can be corrected by lowering the coefficient to 2.9, but this also makes j=0 output 2 which then seems to destroy the complexity.
u/pavel

I tried getting rid of the sin/cos by using hex coordinates but I was unable to make a complex picture. Usually just one of the six slices drew-in.

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katkip

function u(t) {

c.width=1920;
x.font='6cm x';x.fillText(document.body.innerHTML.substring(0,t*3.6*2),+960-t*3e2*2,540)

Sep 20 2018 11:36 AM UTC

}// 102/140

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That's how to write dwitter language

u/katkip

#bug it is a lot faster when you create it in a "New dweet" container
u/BalintCsala

That's not a dwitter bug, canvas sometimes defaults to 120FPS when something's really fast
u/katkip

Yeah but it delayed it and now isn't how I wanted to be

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BackendForth

function u(t) {

c.width=1920
f(99,540,16)
function f(a,b,j){if(j>0){
q=S(t-j/2)
f(a+15*C(q)*j,b+15*S(q)*j,j-1)}
x.beginPath()
x.arc(a,b,9*j,0,7)
x.stroke()}

Dec 31 2017 3:07 AM UTC

}// 140/140

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username

remix of d/13381 by u/username

function u(t) {

w=S(t)*77;q=c.height^=0;r=1e3;q=q-T(t)*w
with(x)moveTo(r-w,q-w),lineTo(r-w,q-w*3),lineTo(r-w/2,q-w*4.4),lineTo(r,q-w*3),fill(lineTo(r,q-w))

Apr 23 2019 12:07 AM UTC

}// 139/140

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what goes up gotta come down

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katkip

remix of d/12920 by u/andy

function u(t) {

for(c.width|=i=896;i--;)q=(m=2.4*i)**(t/9),s=m/40,f=(S((m*t/4e4)*i)+1)/16*i,x.beginPath(),x.arc(q*S(m)*s+960,q*C(m)*s+540,f,0,7),x.fill();

Mar 29 2019 7:39 PM UTC

}// 139/140

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Explosion

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DazeWare

remix of d/33673 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
for(i=4e4;i--;x.fillRect(960+C(k=i*20+r+r**r)*2e3/Z,560-S(k)*2e3/Z,.1,t<5))r=S(i*i/t)-t,Z=C(S(i*50))*9-1/r*S(r*t)

Apr 29 2025 6:51 PM UTC

}// 138/140

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Xen

function u(t) {

x.fillRect(640,360,640,360),x.drawImage(c,0,0,1920,1080,640*(t%3|0),360*(t%4%3|0),640,360),x.fillStyle=`hsl(${t*99},90%,50%)`

Dec 3 2017 9:23 PM UTC

}// 125/140

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few seconds sorry :P

u/joeytwiddle

Excellent
u/Xen

Thanks, had to do one lol
u/joeytwiddle

#sierpinski carpet #ifs rendered by image copying (not by dots)