Top dweets by u/Talesseed

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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Talesseed

function u(t) {

a=~~(60*t%60)
for(n=z=w=0;n++<256&z*z+w*w<4;[z,w]=[z*z-w*w+a/20-2,2*z*w+~~t/20-1])x.fillStyle=R(g=256,g-3*n,g),x.fillRect(a*25,~~t*25,25,25)

Jan 13 2018 9:55 PM UTC

}// 140/140

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Wait for it

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Talesseed

remix of d/6011 by u/Talesseed

function u(t) {

a=0|60*t%60
for(n=z=w=0;n++<256&z*z+w*w<4;[z,w]=[z*z-w*w+a/20-2,2*z*w+~~t/20-1])x.fillStyle=R(g=256,g-3*n,g),x.fillRect(a*25,~~t*25,25,25)

Jan 14 2018 2:34 PM UTC

}// 138/140

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2 characters shorter

u/iverjo

#mandelbrot #fractal

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Talesseed

function u(t) {

w=c.width=1920;
  for(i=0;i<30;i++)
  x.fillRect(w/2+C(t+i/30)*5e2,w/2-450+S(t+i)*5e2,50,50)

Dec 30 2017 10:29 PM UTC

}// 92/140

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Talesseed

function u(t) {

eval(unescape(escape`挮睩摴栽ㄵ〻䈽嬮⸮䄽ⅴ㽛Ⱜⰱ㘬㔶崺䅝㭦潲⡩㴹㭩ⴭ㬩景爨樽㤻樭ⴻ⥻爽〻景爨渽ⴱ㬫⭮㰹㬩爫㴡ℨ䉛椫ㄭ⠰籮⼳⥝☱㰼⡪⬱⵮┳⤩㭁孩崦㵾⡲帴㽭㴱㰼樺〩㭩昨爽㴳⥁孩嵼㵭ⱸ⹦楬汒散琨横㤬椪㤬㤬㤩紻`.replace(/u(..)/g,"$1%")))

Nov 7 2018 9:05 PM UTC

}// 139/140

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Conway's Game of Life (T-tetromino)

u/Talesseed

Uncompressed : c.width=150 B=[...A=!t?[,,,16,56]:A] for(i=9;i--;)for(j=9;j--;) {r=0 for(n=-1;++n<9;)r+=!!(B[i+1-(0|n/3)]&1<<(j+1-n%3)) A[i]&=~(r^4?m=1<<j:0) if(r==3)A[i]|=m,x.fillRect(j*9,i*9,9,9)}
u/Talesseed

(just add ; everywhere)

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Talesseed

function u(t) {

D=(i,r)=>x.fillRect(960+C(g=i*9/43-t)*r,510+S(g)*r,20,20)
c.width|=0
for(j=6;j-->0;)for(i=0;i++<31;D(i,j*99))x.fillStyle=R(256-(i+t)%30*7)

Jan 3 2018 8:43 PM UTC

}// 138/140

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Talesseed

function u(t) {

c.width=1920
d=0.2094
for(i=0;i<31;i++)x.fillRect(960+C(t+i*d)*5e2,510+S(t+i*d)*5e2,50,50),x.fillStyle=R(((i-t)%30+30)%30*10)

Dec 30 2017 11:55 PM UTC

}// 125/140

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