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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eviltoad

remix of d/5428 by u/eviltoad

function u(t) {

t||(a=s=1);f=(n)=>n<0|n>2080?s*=-1:x.fillRect(0,a=n,2920,50*Math.random());x.fillStyle=R(a*S(t/.1),a*C(t+.1),a*S(t));f(a+s);x.rotate(a);

Jan 3 2018 10:37 PM UTC

}// 136/140

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robbyg

remix of d/22715 by u/robbyg

function u(t) {

x.fillStyle="#39C1";x.fillRect(0,0,2e3,2e3);for(i=6e3,X=Y=Z=0;i--;Z=X)x.clearRect(X=960+(S(Y)-C(X+t))*470,Y=540+(S(Z+Z)-C(Y-t))*260,4,2)

Feb 4 2024 8:53 PM UTC

}// 136/140

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Amorphous.

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kchplr

remix of d/3104 by u/kchplr

function u(t) {

f=t*3%2<<8;c.width|=0;for(i=0;i<256;i++)'π䐠ꠘ頄鸂适ꀁ态䀁䃡쐁ꃢ适鸌꠰䟀π䐠ꠘ頄鸂适ꀁ态䀁䁁쑁ꐂ遂鸌꠰䟀'.charCodeAt(f+i>>4)&1<<i%16|0&&x.fillRect(i>>4<<5,i%16<<5,32,32)

Aug 25 2017 8:24 AM UTC

}// 138/140

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The animation is not very inspired but... it works

u/joeytwiddle

#cute

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lewdev

remix of d/34391 by u/lewdev

function u(t) {

eval(unescape(escape`潮步祤潷渽攽㹸⹳瑲潫敓瑹汥㵠桳氨⑻攮步祃潤攪㐰素㤹┵〥怊潮浯畳敤潷渽潮浯畳敵瀽攽㹸⹢敧楮偡瑨⡁㵥⹢畴瑯湳⤊潮浯畳敭潶攽攽㹁☦砮汩湥呯⡥⹸⨨猽挮睩摴栯楮湥牗楤瑨⤬攮礪猩ⱸ⹳瑲潫攨⤠`.replace(/u([^D].)/g,'$1%')))

Dec 24 2025 7:58 PM UTC

}// 140/140

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🎨🖱️ Tiny Canvas Paint Dweet (click drag. Press any key to change color)

u/ximavus

One paint dweet to rule them all! (I recently watched lord of the rings nice movie)

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WasifBoomz

function u(t) {

x.lineWidth=5
a=350
x.strokeRect(0,0,a,a)
x.strokeRect(0,0,a*2,a*2)
x.ellipse(960,540,80,800,0,0,9)
x.stroke()
x.rotate(40)

Sep 5 2019 1:59 PM UTC

}// 124/140

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u/taupelink

I like how this one turns out more ordered than it seems at first

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andrea270872

remix of d/12689 by u/andrea270872

function u(t) {

c.width|=q=25
p=q*q*t%2e3
D=(c,d)=>4e3/((z-c)**2+(w-d)**2)**.5
for(i=0;i++<q*q;)x.fillRect(z=~~(i/q)*95,w=i%q*60,m=D(p,450)+D(800,p),m)

Mar 21 2019 2:47 PM UTC

}// 135/140

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2 swimming magnets (ver2)

u/f8f82804

#halftone #dither

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lowpoly

function u(t) {

for(o=10;o--;)with(c){if(!t){i=j=k=l=1;w=width=399;h=height=101;}k*=(i<=0||i>=w)?-1:1;l*=(j<=0||j>=h)?-1:1;x.fillRect(i+=k,j+=l,1,1)}

Jan 4 2018 12:47 AM UTC

}// 133/140

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Hello guys. I need ideas on how can i optimize this thingie :)

u/lowpoly

and yea, the k*=(i<=0||i>=w)?-1:1; l*=(j<=0||j>=h)?-1:1; part concerns me most
u/joeytwiddle

Well this is 2 chars shorter: if(j<=0||j>=h)l=-l; // and this is the same: (j<0||j>h)&&(l=-l); // You could also drop the four =s for a small loss in quality.
u/sigveseb

Looks nice!

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magna

remix of d/11175 by u/magna

function u(t) {

for(i=8418;i--;x.fillText('⚫🔵',X*16-16+S(a=t*9+((X-60+C(t*7.1)*19)**2+(Y-34+S(t*3.1)*19)**2)**.3)*14,Y*16+C(a)*14))X=i%122,Y=i/122|0

Nov 27 2018 6:03 AM UTC

}// 132/140

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taupelink

remix of d/25464 by u/taupelink

function u(t) {

for(m=t?0:1e3;m--;x[r]())x.beginPath(x.fillStyle=R(i=m%137,i*2,i*4,.6)),s=m%7?'rect':'arc',x[s](m*m%2e3,m%1e3,i,i,i-4),r=m%4?'fill':'stroke'

May 8 2022 3:15 PM UTC

}// 140/140

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d/25466

u/KilledByAPixel

nice, new stuff looking very cool!

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RespectDeniedExplodedDefended

remix of d/4104 by u/RespectDeniedExplodedDefended

function u(t) {

w=1920,h=1080;for(c.width=i=w;i>0;i-=3){
x.fillRect(i,S(i+S(t/8)*t*8)*i+h/2,5,5);
}

Dec 27 2017 7:06 PM UTC

}// 83/140

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