Top dweets by u/tactical_retard

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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tactical_retard

function u(t) {

for(X=1920;X--;){
Y=frame

x.fillStyle=`hsl(${t*60*5},99%,50%`
x.fillRect(X,0,1,(X^Y) % ((X&Y)/1) )
}

x.drawImage(c,0,1)

Sep 17 2021 2:10 PM UTC

}// 121/140

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#sierpinski

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tactical_retard

remix of d/23833 by u/TGY

function u(t) {

x.fillStyle=`hsl(${t*60},99%,50%`
for(i=2e3;i--;){
X=i;
Y=S(X/100+S(t)*10) * (S(t)*200)
x.fillRect(X,t*60+Y,10,10)
}

Sep 12 2021 10:39 PM UTC

}// 116/140

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tactical_retard

function u(t) {

x.font="3em'"
Y=(M=Math).abs(S(t*4)*((a=(1080-50-frame**1.2))>0?a:0))
X=M.abs(2e3-t*800)


//made you look
x.fillText(c.a,X,c.height-(Y+50))

Aug 22 2021 8:54 PM UTC

}// 140/140

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bouncing ball #physics

u/TGY

LOL, got me)

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tactical_retard

function u(t) {

Y=60*t
for(X=w=h=2e3;X--;){
a=(X-w/4)/(w/4)
b=(Y-h/4)/(h/4)
r=a
g=b
for(i=1e1;i--;)r=(r*r-g*g)+a,g=(2*r*g)+b,r*r+g*g<4||x.fillRect(X,Y,1,1)}

Aug 19 2021 6:29 PM UTC

}// 140/140

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got this while trying to make a mandelbrot set

u/tactical_retard

centered: a=(X-500-w/4)/(w/4)
u/tactical_retard

https://stackoverflow.com/questions/41079139…
u/tactical_retard

replace the comma before the distance check with a semicolon for speed
u/danny@hille.dk

It's the famous hairy balls fractal :-)

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tactical_retard

function u(t) {

a="";for(i=1;i<101;i++)s="",s=i%3!=0&&i%5!=0?i:s+=i%3?"":"Fizz",s+=i%5?"":"Buzz",a+=s+" ";throw a

Dec 5 2019 6:17 PM UTC

}// 97/140

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FizzBuzz

u/Xen

Nice!
u/pavel

69: for(n=s='';n++<100;s+=(n%5?f||n:f+'Buzz')+' ')f=n%3?'':'Fizz';throw s

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tactical_retard

remix of d/34725 by u/tactical_retard

function u(t) {

for(i=1e4;i--;x.fillRect(e.x+=(e.x+e.y)/2e3,e.y+=S(e.x%e.y)*S(e.x/20)*5,1,.2)
)e=T[i]=t?T[i]:{x:i%100*19.2,y:(i/100|0)*10.8}

Jan 10 2026 5:02 AM UTC

}// 124/140

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tactical_retard

function u(t) {

p=3.14
for(i=5e4;i--;x.fillRect(960+w*C(m*2)*.56/e*960,540+(q*S(m)+.4)/e*540,1,.01/e))q=i%50/98-.25,P=i/5e4,w=1+q*C(m=P*p),e=w*S(m*2)+1.7

Nov 21 2025 3:32 AM UTC

}// 137/140

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3d mobius strip. Adjust 1.7 for the Z and .4 for the Y #d3 #mobius

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tactical_retard

remix of d/16797 by u/tactical_retard

function u(t) {

for(s=i="";i++<100;s+=((k=[[,b="Buzz"],[f="Fizz",f+b]][i%3==0|0][i%5==0|0])?k:i)+" ");throw s

Jul 20 2022 11:08 PM UTC

}// 93/140

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tactical_retard

function u(t) {

h=540
x.lineTo(X=960+C(k=t**t)*h,Y=h+S(k)*h)
x.moveTo(X,Y)
x.stroke()

Nov 1 2021 8:09 PM UTC

}// 69/140

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#circlechallenge

u/tactical_retard

55: h=540;x.lineTo(X=960+C(k=t**t)*h,Y=h+S(k)*h);x.stroke()

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tactical_retard

function u(t) {

s=128
f=frame
for(i=s*s;i--;x.fillRect(X*15,Y*8,15,8)){
X=0|i/s
Y=i%s
x.fillStyle=R(14>>f-466*239&436^441%200<<100*241<<Y%500>>f-Y%X+f)
}

Oct 1 2021 3:56 PM UTC

}// 137/140

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randomly generated XY brightness equation

u/tactical_retard

original: 14>>frame-466*239&436^441%200<<100*241<<Y%500>>frame-Y%X+frame>>frame%frame

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