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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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jellyedwards

remix of d/17743 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(i=20;i--;)
for(X=-5;X<=5;X+=.05)
ψ=(1-X**2)*3**-(X**2/2)*S((i+t*20)/4)+.5,x.fillRect((X+5)*140+i*30,i*40+400-ψ*300,4,4)

Feb 25 2020 7:46 AM UTC

}// 134/140

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Different animation

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smtsjhr

function u(t) {

c.width=1920;h=540;r=.996;
s=.008*C(2*t);
x.beginPath(); 
for(i=0;i<1000;i++)
x.lineTo(960-960*r**i*S(i*s),h+h*r**i*C(i/s));
x.stroke();

Sep 4 2019 5:35 AM UTC

}// 136/140

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slalom

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maxpowa

function u(t) {

c.width|=i=50;m=540;x.font='100px s';
r=m=>Math.random()*Number.MAX_VALUE%m;
o=(e,i,j)=>x.fillText(e,i,j)
o('🖕', r(1920),r(1080));

Oct 27 2017 4:07 PM UTC

}// 130/140

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katkip

function u(t) {

x.beginPath(),x.arc(t*99+C(-t+Math.PI)*99,t*99+S(-t+Math.PI)*99,10,0,7),x.fill()

Dec 23 2018 1:32 PM UTC

}// 80/140

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Vsauce's Brachistochrone in 80 bytes https://youtu.be/skvnj67YGmw

u/jylikangas

65b after some golf tricks... x.fill(x.arc(t*T+C(a=3.14-t)*T,t*T+S(a)*T,9,!x.beginPath(),T=99))
u/katkip

ow

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anotherkitten

function u(t) {

//dense

Feb 12 2019 10:29 PM UTC

}// 140/140

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katkip

function u(t) {

// Transferring...








receiveMessage=pauseDemo=0;q="";l=q.length;for(i=616;i--;)q+=C(i+C(t+i/99)*10+t*29)<0?'0':'1'
throw q

Feb 28 2019 2:42 PM UTC

}// 128/140

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#binary #hax

u/rnbw

oh neat! i tried to do something like this once (never published it) but your execution is really good
u/Ath0r

cool!
u/joeytwiddle

#parallax
u/C010011012

throwing errors for animation? wow clever

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Xen

remix of d/21065 by u/Xen

function u(t) {

t?z>99?(i+=e,e=4,f+=z=1):x.fillText(f%(z*=4)==z/2?e=1:0,g+=C(y=89/85*i),h-=S(y)):e=z=h=f=i=g=134

Dec 15 2022 12:11 AM UTC

}// 96/140

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tad more golf

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firegodjr

remix of d/10709 by u/New_Core

function u(t) {

s=c.style;s.backgroundBlendMode='lighten';for(b=[i=9];i--;s.background=b)b[i]=`repeating-radial-gradient(${S(t+i)+3}%${i}%,#fff,#011 599%)`

Oct 29 2018 4:15 PM UTC

}// 139/140

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dnmc

function u(t) {

r=Math.random
j=960+S(t)*400
k=540+C(t)*400
for(i=0;i++<80*t;){
j+=r()*8-4
k+=r()*8-4
x.fillStyle=R(0,(S(t*4)+1)*127)
x.fillRect(j,k,6,6)
}

Nov 17 2020 7:07 AM UTC

}// 139/140

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It's the circle of life...

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Odog8

function u(t) {

zr=zi=0
for(u=15;u--;){zr=zr*zr-zi*zi+.5
zi=2*zr*zi+0.2
x.fillRect(zr*200+200,zi*200+200,5,5)
}

Oct 24 2019 1:20 PM UTC

}// 95/140

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just a test for Mandelbrot paths