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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robbyg

remix of d/15346 by u/robbyg

function u(t) {

P=Math.PI*2
for(y=12;y--;)x.fillStyle=R(0,h=y*20,h),x.fillRect(960+C(n=t/5+P/3*(y/4|0))*300+C(m=P/4*y+t)*200,540+S(n)*300+S(m)*200,4,4)

Aug 9 2019 6:24 PM UTC

}// 135/140

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Golfed and colorized for more visual interest.

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pyjus

function u(t) {

o=300;c.width=3*o;x.beginPath();for(i=0;i<99;i++){j=i/10+t;a=o*C(j)/(S(j)**2+1);x.lineWidth=9*C(t)**2;x.lineTo(a*S(t)+o,a*S(j)+o)}x.stroke()

Dec 27 2017 5:13 PM UTC

}// 140/140

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tillsc

function u(t) {

x.fillStyle=R(t%4*63);if(t%.5<.1)for(i=0;i<400;i++)x.fillRect(S(i)*100+960,C(i)*100+540,4,4);x.drawImage(c,-17,-10,1954+S(t)*2,1100+C(t)*2)

Jan 16 2018 8:55 PM UTC

}// 139/140

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Qwitter

function u(t) {

b=225;for(i=200;i--;x.fillRect(0,i*9,9,9))x.fillStyle=R(9*i*t%b,0,99+b*i*i*t%156)
x.drawImage(c,9,S(t)*4+2*C(3*t))
x.fillRect(0,0,2e3,9)

Jan 21 2018 9:19 AM UTC

}// 137/140

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<svg width= "40" height = "40"><path d =" M0 0 L40 40" stroke = "black" /></svg>

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scottglz

function u(t) {

for(X=71;X--;)for(Y=40;Y--;)x.fillStyle=X<24&Y<21?Y%2|X-Y&3|!Y|!X|Y>18?'#00f':f:Y/3&1?f='#fff':'red',x.fillRect(X*25,(Y+S(X/9+t))*25,25,25)

Mar 18 2017 5:00 AM UTC

}// 139/140

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u/sfz

can't believe you did it!
u/magna

I salute this dweet.

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lionleaf

function u(t) {

c.width=2e3;for(i=0;s=300,a=s/(s-(t+i*s/900)%s),i<900;i++){x.strokeRect(999-a*(1+S(t))/2,500-a*(1+C(t*2))/2,a,a)}

Jan 8 2016 12:43 AM UTC

}// 113/140

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#tunnel #myFirstDweet

u/dwitter

basically falling in an infinite hole

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LeoLuxo

function u(t) {

c.width=1920;for(i=-48;i<48;i++)for(j=-27;j<27;j++){w=10+20*C(t*9+Math.sqrt(i**2+j**2)*5)*S(t*7);x.fillRect(i*20-w/2+960,j*20-w/2+540,w,w)}

Jan 29 2018 11:50 AM UTC

}// 139/140

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taupelink

remix of d/35647 by u/taupelink

function u(t) {

for(i=z=2e3;i--;x.fillRect(i,t*174,z/=.8-C(i/166+t*z)/10,9))x.fillStyle=R(r=32+(z>>=2)*++z*6,r*=(q=.7+z%.8),r*q,.5),z+=4-6*C(i/122-z)*S(t*2)

Jun 18 2026 3:53 AM UTC

}// 140/140

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d/35654 👀

u/taupelink

Not planned. A glowing O appeared while I was aimlessly fiddling with the numbers. Then I cleaned up the image a little, zoomed out to make it a bunch of O's, and brought out the blue highlights.
u/rep_movsd

Robot eye factory

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_nderscore

function u(t) {

x.font='28px a';for(i=96;i--;)for(j=54;j--;x.fillText('~!@#$&;'[z-10]||z,20*i,20*j))x.fillStyle=`#0${(z=Math.random()*16|0).toString(16)}0`

Jul 25 2017 6:08 PM UTC

}// 139/140

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u/sigveseb

Cool
u/jick

Neat!

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rodrigo.siqueira

remix of d/33022 by u/rodrigo.siqueira

function u(t) {

c.width|=c.style.filter=`invert()`
for(i=4e3;i--;x.fill())x.beginPath(),q=(i*19%1e3+t*99)%i,x.arc(960+S(k=i*i)*q,540+q*C(k),S(i+t)**2*3,0,7)

Jan 3 2025 6:57 PM UTC

}// 140/140

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Star fountain