Top #random dweets

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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Current theme challenge: #Opposites

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BriSeven

remix of d/3559 by u/BriSeven

function u(t) {

if(!t)d=[];Y=X=t*20;for(i=0;i<1e3;i++) D=(d[i]||1),d[i]=D+S(D*t*i)/9, x.fillRect(X+=C(d[i]), Y+=S(d[i])*9, 5, 5);x.fillStyle=R(S(t)*i/4)

Feb 26 2020 4:44 AM UTC

}// 136/140

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Strata #growth #random

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katkip

function u(t) {

r=Math.random;for(i=999;i--;)p=r()*7,R=r()*600,x.fillStyle=`hsl(${p*360/3.14/2} 99%${R/5}%)`,x.fillRect(960+(X=C(p)*R),540+(Y=S(p)*R),9,9)

Apr 22 2019 11:39 AM UTC

}// 138/140

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Hue wheel

u/katkip

#color #random #rainbow

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sigveseb

remix of d/5514 by u/Xen

function u(t) {

X=t**t%1e3
Y=Math.random()
x.fillRect(X,t*99%1e3,Z=29,Z)
x.fillRect(1920-Y*900,t*99%1e3,Z,Z)
x.fillStyle=`hsla(${t*Z},99%,40%,.5)`

Jan 4 2018 10:30 PM UTC

}// 130/140

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Random challenge, takes a second or two to build up

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spbyrne

function u(t) {

w=1920,h=w/2,c=128,x.fillStyle=R(S(t)*c+c,S(t+2)*c+c,S(t+4)*c+c),x.fillRect(Math.floor(w*Math.random()/c)*c,Math.ceil(c*8*S(t*2)/c)*c,c,w)

Jul 30 2017 4:34 AM UTC

}// 138/140

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u/iverjo

#random

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iverjo

remix of d/268 by u/nkedel

function u(t) {

if(!t)r=0,X=960,Y=540,W=1920,H=1080;x.fillRect(X+=5*S(r+=.5-Math.random()),Y+=5*C(r),5,5),X=((X%W)+W)%W,Y=((Y%H)+H)%H

Jul 21 2016 11:35 AM UTC

}// 117/140

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With wraparound

u/iverjo

#random

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nkedel

function u(t) {

if(t<1||sx>1920||sx<0||sy<0||sy>1080){r=0;sx=960;sy=540;c.width=1920};x.fillRect(sx+=5*S(r+=0.5-Math.random()),sy+=5*C(r),5,5)

Jul 20 2016 9:06 PM UTC

}// 126/140

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u/iverjo

It's mildly entertaining to watch how long the "worm" can keep going without hitting a "wall" :)
u/PhiLho

Also known as "drunk man path" or just "Brownian motion". :-D
u/iverjo

Here's a version with wraparound: http://dweet.dwitter.net/id/286?autoplay=1
u/iverjo

#random

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iverjo

function u(t) {

x.strokeStyle=R(9,t*23);d=99,X=960,Y=X-d*t,a=0;for(;t++<7;)X-=d*S(a),Y-=d*C(a),x.lineTo(X,Y),d*=.7,x.stroke(),a+=(Math.random()-.5)/(t/5+.3)

Feb 21 2016 9:03 PM UTC

}// 140/140

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It becomes different every time you run it, because it uses Math.random

u/iverjo

#tree #random

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iverjo

function u(t) {

X=Y=960,a=0,d=99*t;for(;t++<7;)x.beginPath(),x.moveTo(X,Y),X-=d*S(a),Y-=d*C(a),x.lineTo(X,Y),d*=.5,x.stroke(),a+=Math.random()-.5

Feb 21 2016 9:02 PM UTC

}// 129/140

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#tree #random

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BriSeven

function u(t) {

a=c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,600,50,S(a+=(i+t)*t*a)*200) // draw 50x200 rects

Apr 21 2020 7:02 AM UTC

}// 130/140

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#default #random #prng

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katkip

function u(t) {

r=Math.random;for(k=900;k--;)i=r()*192|0,j=r()*108|0,x.fillStyle=R(r()*256,r()*256,r()*256),x.fillRect(10*i,10*j,10,10)

Feb 10 2019 11:30 AM UTC

}// 119/140

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#random randomness

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