Top dweets by u/f8f82804

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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f8f82804

remix of d/15117 by u/f8f82804

function u(t) {

t||(j=a=b=.3)
for(i=99;i--;){
j+=2*Math.random()-2
a-=(a-((j&2?j:~j)&1))/2
b-=(2*b-(j&2))/4
x.fillRect(480+960*a,960*b,4,4)
}

Jul 23 2019 9:38 PM UTC

}// 125/140

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4-sided #chaos fractal -- variant III

u/f8f82804

#chaosgame

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f8f82804

remix of d/15113 by u/f8f82804

function u(t) {

t||(j=a=b=.3)
for(i=99;i--;){
j+=2*Math.random()-2
a-=(a-(j&1))/2
b-=(2*b-(j&2))/4
x.fillRect(480+960*a,960*b,4,4)
}

Jul 23 2019 9:36 PM UTC

}// 116/140

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4-sided #chaos fractal -- variant II

u/f8f82804

#chaosgame

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f8f82804

remix of d/15113 by u/f8f82804

function u(t) {

t||(j=a=b=.3)
for(i=99;i--;){
j+=2*Math.random()+S(t)
a-=(a-(j&1))/2
b-=(2*b-(j&2))/4
x.fillRect(480+960*a,960*b,4,4)
}

Jul 23 2019 7:04 PM UTC

}// 119/140

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this 4-sided #chaos game produces a pseudo-fractal by continually mixing different vertex selection rules

u/f8f82804

#chaosgame

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f8f82804

remix of d/12670 by u/f8f82804

function u(t) {

for(r=Math.random,i=1e4;i--;x.fillRect(p[0]+=2-4*r(),p[1]+=2-4*r(),1,1))p=u[z=i%2e3]=u[z]||[a=z,b=r()*1080,R(a/8,b/4)],x.fillStyle=p[2]

Mar 7 2019 6:30 PM UTC

}// 135/140

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drawing smaller points doesn't help; this suggests the overhead is in color parsing

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f8f82804

remix of d/12658 by u/qm3ster

function u(t) {

for(r=Math.random,i=1e4;i--;x.fillRect(p[0]+=2-4*r(),p[1]+=2-4*r(),2,2))p=u[z=i%2e3]=u[z]||[a=z,b=r()*1080,R(a/8,b/4)],x.fillStyle=p[2]

Mar 7 2019 12:16 AM UTC

}// 135/140

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A little golf and a color tweak to get some room to play with performance. it seems like the limit is just in drawing; Math.random() seemingly can't be improved on. I'd like to look at putImageData as suggested by https://stackoverflow.com/a/4901604 because it's possible that color parsing is a big overhead cost.

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f8f82804

remix of d/11958 by u/f8f82804

function u(t) {

c.width=12;j=-1;t*=4;(f=i=>{for(;~++j%20;)"縿Ϡ庽纵粇皷皿簡线粧碾⪿䘮㨿嚿ᒿ".charCodeAt(i)&1<<j%20&&x.fillRect((j/5&15)+1,j%5+1,1,1)})((t&240)>>4);f(t&15);

Jan 26 2019 4:00 AM UTC

}// 139/140

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f8f82804

remix of d/11957 by u/f8f82804

function u(t) {

t?0:c.width/=40;j=0;for(c of"縿Ϡ庽纵粇皷皿簡线粧碾⪿䘮㨿嚿ᒿ")for(;~++j%20;)i=j-1,c.charCodeAt()>>i%20&1&&x.fillRect((i/5|0)%16+1,(i%5+6*(i/80|0))+1,1,1)

Jan 25 2019 11:22 PM UTC

}// 138/140

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f8f82804

function u(t) {

throw [re=`[\\x${(a=(9*t%0xa0|0)+0x20).toString(16)}-\\x${(a+0x3f).toString(16)}]+`,(String.fromCodePoint(...Array(256).keys()).match(re))]

Jan 16 2019 7:04 PM UTC

}// 139/140

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#unicode #regexp

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f8f82804

remix of d/11786 by u/joeytwiddle

function u(t) {

(p=(H,X=0,Y=0,I=H)=>H>1?[0,1,2,3].map(i=>p(h=H/2,X+i%2*h,Y+h*(i>1),I+T(++t))):x.fillRect(8*X,8*Y,8,8,x.fillStyle=`hsl(${I} 95%50%`))(256)

Jan 16 2019 6:40 AM UTC

}// 137/140

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#hue #fractal #slow

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f8f82804

remix of d/11826 by u/f8f82804

function u(t) {

throw u

Jan 15 2019 9:19 PM UTC

}// 7/140

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I can't find any instance of this being done before, but I'd be surprised if I was the first. Not as elegant as u/metamero's version, but shorter! Several earlier #quine dweets happily include the declaration of u. #throw #golf

u/metamero

pretty sure i saw or done this before hehehe but is a nive one to have on your page. you see it is a js quine not a "strict dwitter quine", since you have to delete function u(... . and nive job golfing d/11826 . as far as i know, so far, this is the record =]
u/metamero

nice*
u/f8f82804

#jsquine

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