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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lowpoly

function u(t) {

for(y=c.width=c.height=n=80;y--;)for(z=n;z--;)x.fillRect(z,y,1,1,x.fillStyle=((Math.sqrt(z*z+y*y))^(Math.atan2(y,z)*n+t*n))&8?'#4a8':'#445')

Jan 3 2018 6:44 PM UTC

}// 140/140

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Experimenting with a "classical" formula

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bkardon

function u(t) {

for(k=1;k<100;k++){r=t*100%1102;a=k;x.fillStyle=R(r/4,(50+new Date%100)*t%255,120*S(t)+120);x.fillRect(r*C(t+a)+960,r*S(t+a)+540,5,5);}

Dec 27 2017 7:51 PM UTC

}// 135/140

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u/Xen

done you a remix: #4140

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UnacceptableUse

remix of d/15604 by u/UnacceptableUse

function u(t) {

c=300
a=C(t)*c
b=T(t)*c
d=255
x.fillStyle=R(d,d-a,d-b,.5)
x.fillRect(a,b,5,c) 
x.rotate(S(t))

Sep 2 2019 1:30 PM UTC

}// 94/140

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jonathan_b

remix of d/6494 by u/magna

function u(t) {

x.fillRect(0,0,2e3,2e3);for(i=32;i--;)for(x.setTransform(1,0,0,1,i%4*490,(i>>2)*125),j=44;j--;)x.clearRect(220+C(j+t)*99,99+S(j+i*t)*56,9,9)

Jan 28 2018 3:02 AM UTC

}// 140/140

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f8f82804

function u(t) {

eval(unescape(escape`䜽⡡Ɫ⤽㹢㽇⡢ⱡ╢⤺愻䰽⡡Ɫ⤽㹡⩢⽇⡡Ɫ⤻瀽⡩㴳㤪䵡瑨⹲慮摯洨⥼〩⩩⭩⬴ㄻ焽⬫椪椫椫㐱㭮㵰⩱㭥㴶㔵㌷㭦潲⡤㴱㭤⩥╌⡰ⴱⱱⴱ⤭ㄻ搫⬩㭣㴷㭦潲⠻ⴭ攻挽挪㜥温㭃㵣㭦潲⠻ⴭ搻䌽䌪挥温㭴桲潷⁃`.replace(/u(..)/g,"$1%")))

Aug 24 2018 7:30 PM UTC

}// 139/140

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RSA #crypto #compressed

u/f8f82804

G=(a,b)=>b?G(b,a%b):a;L=(a,b)=>a*b/G(a,b);p=(i=39*Math.random()|0)*i+i+41;q=++i*i+i+41;n=p*q;e=65537;for(d=1;d*e%L(p-1,q-1)-1;d++);c=7;for(;--e;c=c*7%n);C=c;for(;--d;C=C*c%n);throw C
u/f8f82804

Will throw 7 if the decryption works correctly. #slow
u/katkip

it lags so much
u/f8f82804

it should be possible to optimize the modular inversion and exponentiation, but it would probably go over the character limit

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rodrigo.siqueira

remix of d/34491 by u/rodrigo.siqueira

function u(t) {

t?c.style.filter=`invert(`:𝕏=X=Y=0
for(i=5e4;i--;𝕏=X,x.fillRect(3e3+Y*4e3,1100+X*3e3,t<.9,.1))X=S(X*X-Y*Y+44),Y=C(2*𝕏*Y+1.92)+T(i)/1e4/(t-1)

Nov 5 2025 2:30 PM UTC

}// 140/140

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Double vortex #attractor

u/ximavus

woah

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magna

function u(t) {

c.width|=0
for(i=32*5;i--;x.fillRect(X*100+S(t)*300-300-25+p*50,Y*250-100+p*100,50-p*50,200-p*200))X=i%32,Y=i>>5,p=(X<7|X>15|Y!=2)*S(t/2)**2

Dec 11 2021 5:44 AM UTC

}// 140/140

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#default

u/ciaccodavide

nice one!
u/vain

Awesome code!
u/aleamb

love it!
u/magna

136: c.width|=0;for(i=160;i--;x.fillRect(X*100+S(t)*300-325+p*50,Y*250-100+p*100,50-p*50,200-p*200))X=i%32,Y=i>>5,p=(X<7|X>15|Y!=2)*S(t/2)**2
u/4ce

u/magna 136=>135 c.width|=0;x.scale(25,25);for(i=160;i--;x.fillRect(X*4+S(t)*12-13+p*2,Y*10-4+p*4,2-p*2,8-p*8))X=i%32,Y=i>>5,p=(X<7|X>15|Y!=2)*S(t/2)**2

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kodierer

remix of d/7965 by u/kodierer

function u(t) {

c.width=1920
for (h=0, h <=300, h+=50)
x.fillRect (600, 500, 300, h)

May 4 2018 4:41 AM UTC

}// 68/140

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ianertson

function u(t) {

x.fillStyle = 'black';
for(i = 0; i < 200; i++)x.fillRect((1920/2+i*C(t)), 1080/2+i*T(t), 1, 1);

Dec 29 2017 12:37 PM UTC

}// 96/140

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Challenge: Make it rotate if you can!

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rodrigo.siqueira

remix of d/21693 by u/rodrigo.siqueira

function u(t) {

c.width|=c.style=`filter:invert(`
for(i=2e3;i--;x.arc(960,540,400,11+4*S(i-C(1.6+S(t)/5+i)),40))x.lineTo(960,540)
x.lineWidth=.05
x.stroke()

Feb 19 2021 2:18 PM UTC

}// 140/140

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Laser light beam from the pyramid #laser

u/Qwitter

Giza beam