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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username

remix of d/14849 by u/username

function u(t) {

for(c.width|=i=17;i--;x.fillRect(325+i*76+C(t)*3e2,400+S(g=(i+1)*t)*99,43,2e2))x.fillStyle=`hsl(${2*S(g=(i+1)*t/2)*32},67%,50%`

Jul 1 2019 12:17 PM UTC

}// 127/140

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improved #default pendulums?

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S.T.L.K.R.

remix of d/5813 by u/S.T.L.K.R.

function u(t) {

for(i=0;i<4e3;i++){x.fillStyle=`hsla(${t*i},70%,50%,.5)`
x.fillRect(950+C(2*i)*T(t+i*8e4)*500,550+S(i*2)*T(t+i*8e4)*400,10,10)}

Jan 11 2018 1:08 AM UTC

}// 127/140

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Agnes

remix of d/34203 by u/Agnes

function u(t) {

f=960;V=_=>1-.7/f+Math.random()/f;x.font="20cm A";t?x.setTransform(V(),1-V(),1-V(),V(),f,540)&x.drawImage(c,-f,-540):x.fillText("🍓",400,800)

May 4 2026 11:07 AM UTC

}// 140/140

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The strawberries in my fridge if I leave them alone for a single day #food

u/cantelope

they were never yours. if you can't touch it or spend it. it doesn't belong to you

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katkip

function u(t) {

r=z=>Math.random``<.5?1:-1;if(!t)s=[960,540];x.fillRect(s[0],s[1],30,30);s[0]+=15*r``;s[1]+=15*r``;x.globalCompositeOperation=`xor`

Aug 29 2018 6:39 PM UTC

}// 131/140

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Shorter #ant

u/f8f82804

114: t||(w=960,h=540,r=_=>Math.random()<.5?1:-1,x.globalCompositeOperation='xor');x.fillRect(w+=15*r(),h+=15*r(),30,30)

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loni_art

remix of d/9118 by u/stiaje

function u(t) {

c.width|=x.stroke()
x.translate(960,540)
r=a=>(x.rotate(a),l=>x.fillRect(-5,-50,9,l))
r(7*t+3)(500)
r(t/17-t*7+7)(350)

Aug 5 2018 7:22 PM UTC

}// 118/140

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golfed even more via evil

u/richev

Nice lambda!

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tomxor

remix of d/22986 by u/tomxor

function u(t) {

for(c.width=p=w=64;a=R*S(t),b=R*C(t),p<3e3;u=p/32%2-1)C(Y=R*p/2e3-R/2)>T(S(u*b-a)*S(Y+t+a)*S(u*a+b))&R<8?R+=.1:x.fillRect(p%w,p++/w,R/9,R=1)

Jun 4 2021 7:31 PM UTC

}// 140/140

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Indecisive Paint

u/tomxor

#raymarching
u/KilledByAPixel

Nice, looks alive!

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KilledByAPixel

remix of d/15051 by u/KilledByAPixel

function u(t) {

c.width=w=240
t%1<.01?d=Date.now():C=C=>!!u[i+C]
for(i=4e4;i--;x.fillRect(i%w,i/w|0,1,!a))a=u[i]=d&2**(8*C(-w)+4*C(w)+2*C(-1)+C(1))

Jan 16 2022 7:48 PM UTC

}// 131/140

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2D Automata (FLASHING WARNING) rules change every second

u/KilledByAPixel

#Automaton

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the_yuhanna

function u(t) {

c.width|=0;x.translate(960,540);for(i=50;i--;x.rotate(t*.3))x.rect(a=-500-i*20+500*S(t+i/5),a,-a*1,-a*5);x.fill('evenodd')

May 20 2017 6:50 AM UTC

}// 125/140

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katkip

remix of d/19573 by u/jellyedwards

function u(t) {

t||(Q=540)
r=Math.random
x.beginPath()
x.fillRect(t*200,Q,9,9)
Q-=p=S(t*S(t*S(t))-Q/99)*2
x.fillStyle=p<0?"red":"lime"

Aug 1 2020 8:52 AM UTC

}// 118/140

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#crypto graph

u/DaSpider

Any decorative reason for that r=Math.random?

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iverjo

function u(t) {

for(i=7;i--;)x.fillStyle=R(a=255*!i,a,a,.02+i),r=S(t/7),x.fillRect(!a*(960+900*S(t+i)*r),!a*(515+500*C(t+i)*r),c=20+8*a,c)

Jul 29 2016 5:10 PM UTC

}// 122/140

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This might be a good starting point for creating dweets with rectangles that leave trails. For i = 0 a large, white, semi-transparent rectangle is applied to the entire canvas. For i = 1,2,3,4,5,6 small, black, opaque rectangles are drawn.

u/iverjo

#spiral