New #galaxy dweets

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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KilledByAPixel

function u(t) {

for(i=0;i<2e3;x.fillRect(i?960+i*S(F=300*t/i+i+S(z)/9):0,i?460+.2*(2*i*C(F)):0,K=i++?S(i)*9:2e3,K))x.fillStyle=R(z=i*i,z%498,z%499,.2+i)//★

Apr 20 2019 5:26 PM UTC

}// 140/140

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#galaxy

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katkip

function u(t) {

c.width^=0;for(i=1000+(900*S(t))|0;i--;)x.fillRect(960+C(i+t/9)*i*S(i*2)/3,540+S(i+t/2)*i*C(i*2+3.14/2+C(t)/2)/3,9-i/99,9-i/99)

Mar 1 2019 8:09 PM UTC

}// 127/140

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#d3 #galaxy another one

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katkip

function u(t) {

q=t/25;x.fillRect(0,0,2e3,2e3);for(i=500;i--;)x.clearRect(960+S(t-i*q)*(500-i),540+C(t-i*q)*(250-i+S(t)*99),8,8)

Dec 17 2018 6:20 AM UTC

}// 112/140

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#galaxy

u/jamespwilliams

Cool!
u/otomakan

Gorgeous!
u/C010011012

one of the oscillator things with the θ=r*t I see

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katkip

function u(t) {

for(i=2;i<1e2;i++)x.fillRect(960+C(i+t*2)*1920/(i+t/99),540+S(t*2+i)*1080/(i+t/99),15,15),x.fillStyle=`hsla(${i*92+t*5},99%,50%)`

Aug 30 2018 2:06 PM UTC

}// 129/140

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#orbit #sun #galaxy #space #stars <- hashtag abuse lol

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f8f82804

remix of d/9252 by u/f8f82804

function u(t) {

x.globalAlpha=.01;x.fillRect(0,0,2e3,2e3);for(i=a=30;z=--i*a*C(b=i+99*t/i/i);)x.clearRect(960+3e5*S(b)*i/(d=2e3-z),540+1e3*z/d,9,9)

Aug 22 2018 4:44 PM UTC

}// 131/140

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#perspective #galaxy #trails

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f8f82804

remix of d/9191 by u/f8f82804

function u(t) {

x.globalAlpha=.1;for(i=a=30;z=--i*a*C(b=i+99*t/i/i);)x.fillRect(960+3e5*S(b)*i/(d=2e3-z),540+1e3*z/d,9,9)

Aug 16 2018 1:29 AM UTC

}// 105/140

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#perspective #galaxy

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f8f82804

remix of d/9190 by u/f8f82804

function u(t) {

x[s='fillStyle']='#0001';x[r='fillRect'](0,0,w=1920,w);for(i=a=30;z=--i*a*C(b=t/i/i);x[s]='red')x[r](w/2+3e5*S(b)*i/(d=w-z),w/4+1e3*z/d,9,9)

Aug 10 2018 12:00 AM UTC

}// 140/140

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#galaxy #trails #perspective -- had to give up the "random" starting locations to fit in a perspective transform. Using red saves a character over #fff.

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f8f82804

remix of d/2538 by u/terkel

function u(t) {

x[s='fillStyle']='#FFF1'
x[r='fillRect'](0,0,w=c.width,w)
for(i=a=30;i--;x[r](w/2+S(b=i+7*t/i/i)*250*i,w/4+C(b)*a*i,a,a))x[s]=R(i*t/a,i*a,i)

Aug 9 2018 10:36 PM UTC

}// 140/140

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pseudo-orbits #galaxy #trails

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rikardlindstrom

function u(t) {

t||x.translate(980,540)
c.style.background=R(x.fillStyle='#fff',++t<4&&x.drawImage(c,~x.fillText(0,~x.scale(s=1+C(t)/20,s),0),~x.rotate(t)))

Dec 31 2017 7:03 AM UTC

}// 140/140

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Show more comments…
u/Flopster

Wow! Too bad it doesn't reset, but this looks incredible!
u/rikardlindstrom

Thanks! All I could fit in 140 characters. Happy to hear suggestions how to squeeze it further though!
u/magna

Amazing!
u/iverjo

Kudos
u/sigveseb

So pretty!
u/tqdwqwd

qwd
u/meesh

Wow!
u/iverjo

#galaxy
u/lionleaf

#space #stars

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nystrand

function u(t) {

p=(a,b,d,w=1)=>d>3?x.fillRect(a-w,b-w,d*w,d*w)&p(a,b,d-5)&p(a+b*C(t+d),b+a*S(d)/8,d-4):x.fillStyle=R(d*88,d*a/9,50+d*99,.3);p(a=650,a,60,a)

Mar 29 2017 8:25 PM UTC

}// 139/140

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Show more comments…
u/cantelope

incredible!
u/magna

So pretty!
u/nonce

wow
u/sfz

holy shnikes!
u/donbright

great colors
u/iverjo

#galaxy
u/vain

incredible code and fx. the source is to cryptic for me. XD

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