Top #recursive 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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katkip

function u(t) {

f=(X,Y,s,q=s*2)=>{if(s>2)x.fillRect(X-s,Y-s,q,q),f(X-s*1.5,Y,s/2),f(X+s*1.5,Y,s/2),f(X,Y-s*1.5,s/2),f(X,Y+s*1.5,s/2)}
f(960,540,200+t)

Jan 20 2019 2:11 PM UTC

}// 134/140

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A #fractal cross #recursion #recursive

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katkip

function u(t) {

c.width^=0;r=(X,Y,s)=>{if(s>3)x.fillRect(X-s,Y-s,s*2,s*2),r(X-s,Y-s,s/2),r(X-s,Y+s,s/2),r(X+s,Y-s,s/2),r(X+s,Y+s,s/2)}
r(960,540,t*99)

Dec 31 2018 11:27 AM UTC

}// 134/140

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T-square #fractal #recursion #recursive

u/katkip

Why this has no likes? wtf
u/joeytwiddle

It has two likes now. Is that above average? ^^

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katkip

remix of d/11584 by u/katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭦㴨愬戬挩㴾筩昨挾㌩砮晩汬剥捴⡡ⱢⱣⱣ⤬昨愭挪䌨琩Ɫⵣ⩓⡴⤬振㈬振㈩ⱦ⡡⭣⼲⩃⡴⤬戫挪匨琩Ᵽ⼲Ᵽ⼲⤬昨愭振㈪匨琩Ɫⵣ⼲⩃⡴⤬振㈬振㈩ⱦ⡡⭣Ɫⵣ⼲Ᵽ⼲Ᵽ⼲⥽㭦⠸㐰ⰵ㤰ⰲ㔰⤻`.replace(/u(..)/g,"$1%")))

Dec 30 2018 9:57 AM UTC

}// 138/140

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I love #recursion , #recursive #sierpinski #d3 c.width^=0;f=(a,b,c)=>{if(c>3)x.fillRect(a,b,c,c),f(a-c*C(t),b-c*S(t),c/2,c/2),f(a+c/2*C(t),b+c*S(t),c/2,c/2),f(a-c/2*S(t),b-c/2*C(t),c/2,c/2),f(a+c,b-c/2,c/2,c/2)};f(840,590,250)

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katkip

function u(t) {

f=(a,b,c)=>{if(c>3)x.fillRect(a,b,c,c),f(a+c,b+c,c/2,c/2),f(a-c/2,b+c,c/2,c/2),f(a-c/2,b-c/2,c/2,c/2),f(a+c,b-c/2,c/2,c/2)};f(635,215,650)

Dec 30 2018 9:53 AM UTC

}// 138/140

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#recursion #recursive microprocessor #fractal

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katkip

function u(t) {

c.width*=1;r=(f,q)=>{while(q-->0)for(i=0;i++<10;)x.fillRect(400/q+i*100/q+S(f)*300/q,400/q,50/q,200/q)};r(t,t*t/3)

Oct 27 2018 6:07 PM UTC

}// 114/140

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#recursive #default

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ciaccodavide

function u(t) {

c.width|=1
f=(X,Y,s)=>(h=s/2,x.fillRect(X-h,Y-h,s,s),s>3&&(f(X-s,Y-s,h,f(X+s,Y+s,h,f(X+s,Y-s,h,f(X-s,Y+s,h))))))
f(960,540,199+S(t)*99)

Feb 2 2021 1:53 PM UTC

}// 135/140

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#recursive squares

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katkip

function u(t) {

c.width*=1;f=(X,s)=>{if(s>3)x.fillRect(960+S(X)*s,540+C(X)*s,9,9),f(X-0.02*C(t+X*5),s-2)}
f(520+t,500)

Feb 5 2019 8:29 AM UTC

}// 102/140

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Electrical lighting trajectory simulation #recursive #recursion

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katkip

remix of d/12106 by u/katkip

function u(t) {

c.width*=1;f=a=>{if(a>9)x.beginPath(),x.arc(950+C(a/799*S(a/99+t)-t)*a/2,540+S(a/799*C(a/99+t)+t)*a/2,a*2-20,0,7),x.stroke(),f(a-2)}
f(1000)

Feb 2 2019 5:10 PM UTC

}// 140/140

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Another #wave with an interesting #moire

u/katkip

btw #recursive

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katkip

remix of d/11588 by u/katkip

function u(t) {

c.width|=f=(X,Y,d=700+t*80,a=C(d)*500,b=d/2)=>{if(d>20)x.fillRect(X-b,Y-b,d,d),f(X-b,Y,b),f(X,Y-b,b),f(X+b,Y,b)};x.globalAlpha=.2,f(960,800)

Dec 30 2018 1:37 PM UTC

}// 140/140

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#sierpinski using alpha

u/katkip

#fractal, #recursive

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katkip

function u(t) {

if(!t)x.translate(960,540);r=(a,b,d)=>{while(d-->-1&&a>3&&b>3)x.fillRect(a*S(a*a-b+d),b*C(b*b-a+d),10,10);r(a/1.5,b/1.5,t);}
r(960*2,540*2);

Oct 27 2018 3:54 PM UTC

}// 140/140

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#orbits solar system #recursive Not real time

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