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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BalintCsala

function u(t) {

for(c.width=500,i=t|0;i--;)[[X=250,(Y=150)+(K=(t-1-i)*9)],[X-i*9,Y],[X,Y-K],[X+i*9,Y],[X,Y+K]].map(y=>x.lineTo(...y))
x.stroke();

Mar 21 2018 10:06 PM UTC

}// 129/140

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u/diceroll123

I used to draw these all the time in grade school. 👌
u/joeytwiddle

I think the first graphics I ever drew was something like that
u/13thptr

#astroid

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Loomy

function u(t) {

c.width=2e3
k=50
for(i=0;i<t*250;)
x.fillRect(k+i%k*k,k+i++,k,k)
x.font=400+'px x'
x.fillStyle='#FFF'
x.fillText('2018',450,750,2e3)

Jan 2 2018 1:46 AM UTC

}// 132/140

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u/sigveseb

Ohh, the reveal!
u/Loomy

I wanted to write Happy New Year, but I did not have enough characters haha

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rodrigo.siqueira

remix of d/13412 by u/rodrigo.siqueira

function u(t) {

if(t<1)with(x)fillStyle=R(9,20,70),fillRect(0,0,42,99),rotate(Math.PI*.8),translate(-420,-800),drawImage(c,0,0,1e3,1e3),translate(-920,-450)

Jun 23 2019 10:23 PM UTC

}// 140/140

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Blue Starfield - color version

u/donbright

rodrigo you are a legend. if you wrote a book i would buy it

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Xor

function u(t) {

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

Apr 28 2021 5:30 AM UTC

}// 71/140

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My Sphere

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cantelope

function u(t) {

for(w=(i=c.width|=0)/2,x.globalAlpha=.07;i--;x.fillRect(w+(i%7-3)/Z*w-(s=(w-C(t/3)*w)/Z)/2,540+((i/7%5|0)-2)/Z*w-s/2,s,s))Z=1+(i/35|0)-t*5%1

Nov 24 2017 4:57 AM UTC

}// 140/140

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u/joeytwiddle

Nice!

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Niklas

remix of d/1937 by u/Niklas

function u(t) {

for(c.width|=0,a=300,C(t)<0&&(a*=-1),i=0;i<6.2;i+=.01)x.lineTo(960+1333*S(t)+a*C(i)-a*Math.pow(S(i),2)/1.5,540+a*C(i)*S(i));x.fill()

Mar 7 2017 5:03 PM UTC

}// 132/140

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u/SpecialAgent

Oh I like this very much :D
u/iverjo

Now we're talking :)

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jellyedwards

function u(t) {

t/k>2?k+=++j:x.translate((c.width|=b=τ/j)/2,h=500)
t&1?d+=b/120:x.scale(1,C(t*τ))
for(a=d;τ>a-d;x.fill())x.arc(0,0,h,a+=b,a)}{j=k=3,d=τ=6.28

Nov 20 2020 6:48 AM UTC

}// 140/140

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Group #symmetry #numbertheory

u/jellyedwards

Trying to do this sort of thing for all polygons: http://mathonline.wikidot.com/the-group-of-s…
u/jellyedwards

Not much point posting this when there are mountain landscapes and stargates dweets around lol
u/smtsjhr

i can appreciate these Dihedral Group symmetries
u/DataMeta

interesting! glad you posted it :)

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Xen

function u(t) {

x.beginPath(x.fill(x.arc(940,540,t*9,t,t+1)))

Oct 5 2020 6:50 PM UTC

}// 45/140

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Spiral test

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DazeWare

function u(t) {

for(i=0;i<99;i++)
{
r=Math.random()
x.font="6em arial";
x.fillStyle = `hsl(${t*999}, 100%, 50%)`;
x.fillText("O",t*99,600+t*40*S(t),t*99);
}

Apr 22 2025 3:28 AM UTC

}// 140/140

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thenize

remix of d/12511 by u/katkip

function u(t) {

c.width*=1;x.lineWidth=1;for(j=79;j--;)for(i=2;i--;)x.lineTo(960+C(i*2.17+j/(9+C(t+j/29)*5)+t)*200,900+S(i*1.57+j/99+t)*60-j*9);x.stroke();

May 8 2025 6:34 PM UTC

}// 139/140

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u/warbino

COOL
u/warbino

AWESOME
u/warbino

STUNNING
u/warbino

LIFE CHANGING