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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sukkamehu

function u(t) {

;a=57;
for(i=0;i<360;i++)
for(j=0;j<50;j++)
x.fillStyle=`hsl(${i},99%,50%)`,x.fillRect(C(i/a)*j*10+600,S(i/a)*j*10+500,20,20);

May 21 2018 7:28 PM UTC

}// 126/140

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trupples

function u(t) {

t?(c.width=innerWidth,c.height=innerHeight):(X=Y=0,c.onclick=e=>E=e)
X=(X+E.x)/2
Y=(Y+E.y)/2
x.font="60px a"
x.fillText("🕷️",X-30,Y)

Jan 1 2018 9:07 PM UTC

}// 132/140

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click to play with the spider yay

u/trupples

miiiight also kinda qualify for the cobweb challenge (?)

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BuRRak

function u(t) {

t||(e=1);f=n=>n?(n*f(n-1)):1;e+=1/f(frame);throw e;

Feb 23 2018 3:38 PM UTC

}// 51/140

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Calculating Euler's number, not really useful at all

u/mitakkee

2

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donbright

remix of d/1863 by u/SpecialAgent

function u(t) {

c.width=1024;w=64;for(i=w*w;i--;)X=i%w,Y=i/w>>0,P=128*((1-t*t)*X*X/(1+t*t)+2*t*Y*Y/(1+t*t)),x.fillRect(200+X*10,Y*10,P%11,P%11)

Mar 11 2017 2:03 AM UTC

}// 129/140

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No Sine or Cosine were harmed in the making of this demo. It is not random - and if it runs long enough it should theoretically become a still image

u/sfz

Those ripples are tripping me out
u/donbright

note to future self - this varies from x*x + y*Y to x*x-y*y (circle to hyperbola) by using the rational parameterization of the circle with one variable parameter, where (1-t**2)/(1+t**2) is an alternate to cosine and 2t/(1+t**2) is an alternate to sine. (or vice versa i forget lol)
u/magna

Awesome!
u/z3vin

So cool

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ciaccodavide

remix of d/20935 by u/rodrigo.siqueira

function u(t) {

for(f=(X,Y,r,a)=>r>1?f(Y+r*C(a),X+r*S(a),r/3,T(~~t+a/9)*19):x.fillRect(X,Y,r,r),A=t;A<2e4;)f(960,540,360,++A)
t%2>2-.1&&(c.width|=1)

Dec 16 2020 7:43 AM UTC

}// 132/140

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New Protein Folding every 2 seconds #organic

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ciaccodavide

remix of d/20728 by u/Irratix

function u(t) {

c.width|=1
d=new Date()
x.fillText([...'🕛🕐🕑🕒🕓🕔🕕🕖🕗🕘🕙🕚🕧🕜🕝🕞🕟🕠🕡🕢🕣🕤🕥🕦'][d.getHours(x.font="9em'")%12+(d.getMinutes()>29&&12)]+' '+d,0,133)

Nov 20 2020 5:07 PM UTC

}// 133/140

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thanks u/Irratix

u/Xen

nice!

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eruonna

function u(t) {

c.width|=0
t?o.push({x:960,y:540,X:C(t*9),Y:S(t*9)}):o=[]
o.map(p=>{x.fillRect(p.x,p.y,9,9),p.x+=p.X,p.y+=p.Y})
o=o.length<999?o:[]

Apr 17 2017 8:33 PM UTC

}// 131/140

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u/donbright

great minds think alike https://www.dwitter.net/d/2159

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Xen

function u(t) {

for(i=9;i--;x.fillStyle='#'+frame)x.fillRect(500+i*100+S(t)*500,400+C(i+t)*99,50,200)

Dec 2 2018 9:08 PM UTC

}// 85/140

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new remix chain #1

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Xen

remix of d/28608 by u/384.cz

function u(t) {

for(c.width|=i=6,x.font="9cm'";i--;)x.fillText("📱",99+i*250+S(t)*99,580)

Oct 6 2023 4:04 PM UTC

}// 72/140

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slight play

u/danny@hille.dk

love it! why not make it a "snake default" for(c.width|=j=40;j--;)for(i=9,x.font="6cm'";i--;)x.fillText("📱",i*210+S(t*3-j/6)*99,580+j*16)

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magna

function u(t) {

c.width=495
for(i=6e3,w=99;i--;x.fillRect(X*5-s/2,Y*5-s/2,s,s))X=i%w,Y=i/w|0,d=S(Math.hypot(S(t*1.7)*50+50-X,C(t+X/9)*28+28-Y)/5)*w,s=3+d/w

May 29 2025 3:58 AM UTC

}// 140/140

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