Top #recursion 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

remix of d/12244 by u/katkip

function u(t) {

eval(unescape(escape`昽⡘ⱙⱳ⤽㹻楦⡳㸱〩砮扥杩湐慴栨⤬砮汩湥呯⡘ⱙ⵳⼳⤬砮汩湥呯⡘⭳⼲ⱙ⭳⼲⤬砮汩湥呯⡘⵳⼲ⱙ⭳⼲⤬砮晩汬⠩ⱦ⡘ⱙ⵳⼲ⱳ⼲⤬昨堫猯㈬夫猯㈮㔬猯㈩ⱦ⡘⵳⼲ⱙ⭳⼲⸵ⱳ⼲⥽㭦⠹㘰ⰵ㐰ⰵ〰⤻`.replace(/u(..)/g,"$1%")))

Feb 8 2019 5:21 PM UTC

}// 137/140

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A x.fillTriangle would be perfect ;( #recursion Weirdinski triangle

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katkip

remix of d/12162 by u/katkip

function u(t) {

c.width*=1;f=(X,Y,S)=>{if(S>.3)x.fillRect(X,Y,S-2,70),f(X+S/2,Y-70+C(X/8-t)*20,S/2),f(X,Y-70+C(X/9+t)*20,S/2)}
f(50,960,1760)

Feb 5 2019 8:23 AM UTC

}// 125/140

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Extremely smooth pistons spike-wave #recursion #recursive

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katkip

function u(t) {

c.width*=1;f=(X,Y,s)=>{if(s>20)for(i=0;i<9;i++)x.fillRect(X+i*s*2+S(t)*s*6,Y,s,s*4),f(X+s,Y+s,s/1.3)};f(300,300,100)

Jan 17 2019 1:49 PM UTC

}// 116/140

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#d3 #recursive #recursion #default #perspective

u/metamero

nice idea. this can go better

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katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭲㴨堬夬猩㴾筩昨猾㈩砮晩汬剥捴⡘ⱙⱳ⨲ⱳ⨲⤬爨堭猬夭猬猯㈩Ⱳ⡘⵳ⱙ⭳ⱳ⼲⤬爨堫猬夭猬猯㈩Ⱳ⡘⭳ⱙ⭳ⱳ⼲⥽㭸⹧汯扡汁汰桡㴮㔫䌨琪㈩⨮㌬爨㤶〬㔴〫䌨琩⨴㈰ⰴ㠰⤻`.replace(/u(..)/g,"$1%")))

Dec 31 2018 12:15 PM UTC

}// 131/140

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#infinite #sierpinski #recursion #layers #levels #grayscale #fractal #recursive

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katkip

function u(t) {

f=(a,b)=>C(b)*S(a)>0?f(-a/3,b):S(a)+C(b)<0
for(i=4999;i--;){a=(r=Math.random)()*1920,b=r()*1080;if(f(a/49,b/49))x.fillRect(a,b,3,3)}

Dec 30 2019 7:40 PM UTC

}// 132/140

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Go this way! #recursion

u/katkip

#illusion

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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

remix of d/11900 by u/katkip

function u(t) {

f=(X,Y,s)=>{if(s>200-t*999)x.beginPath(),x.moveTo(X,Y),N=X+C(s*s)*50,M=Y+S(s*s)*50,x.lineTo(N,M),x.stroke(),f(N,M,s-1)}
f(460,440,200)

Jan 20 2019 1:16 PM UTC

}// 134/140

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This is satisfying to watch #recursion

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katkip

function u(t) {

r=(X,Y,s)=>{if(s>2)x.beginPath(),x.arc(X,Y,s*2,0,7),x.stroke(),r(X-s*2,Y,s/2),r(X+s*2,Y,s/2)}
r(960,540,230)

Dec 31 2018 12:02 PM UTC

}// 108/140

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only 108 bytes #recursion #recusive #circle #arc #fractal

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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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