Top dweets by u/pavel

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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Current theme challenge: #Opposites

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pavel

remix of d/23087 by u/pavel

function u(t) {

for(n=3;n--;x.beginPath(x.stroke()))t?p[3-3*C(j=++i>>5)>>1]+=1|C(j**9.2)-1:p=[0,i=0,99],s=540/p[2],s>0&&x.arc(960+p[0]*s,540+p[1]*s,3*s,0,7)

Jun 12 2021 7:58 PM UTC

}// 140/140

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#pipedream

u/vain

Just amazing! Reminds me of the old Windows 95 screensaver.

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pavel

remix of d/22643 by u/Xor

function u(t) {

for(c.width|=i=11;i--;){
x.beginPath()
x.setLineDash([n=2**(i+t%1)])
x.lineWidth=n
x.lineTo(0,h=3*n/2)
x.lineTo(2e3,h)
x.stroke()
}

Apr 28 2021 7:59 PM UTC

}// 131/140

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Using setLineDash as otherwise its too slow to draw all the squares

u/Xor

Neat!

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pavel

remix of d/18021 by u/DaSpider

function u(t) {

for(c.width|=0,x.scale(8,8),x.strokeRect(i=3,-2,240,135);i--;x.fillText(o?'💩':i?'Re':'Im',o?5+205/a:5+220*i,i?130-o*a:9))a=1+128/8**t,o=i>1

Mar 19 2020 3:42 AM UTC

}// 139/140

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💩 JUST GOT REAL 2

u/DaSpider

That bat soup better have been real good
u/pavel

This comment inspired me to make d/18029

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pavel

remix of d/17103 by u/pavel

function u(t) {

h=n=>n&&x.isPointInPath(X+R*C(n),Y+R*S(n))|h(n-1)
R<169&&!h(99)?x.arc(X,Y,R,0,7,x.moveTo(X+R,Y,R+=8)):(X=t%20*96,Y=X**5%1080,R=2)
x.stroke()

Jan 10 2020 3:32 AM UTC

}// 140/140

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isPointInPath

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pavel

function u(t) {

eval(unescape(escape`𫐽𚁸𛁹𛁤👡𚡡𚱢𚡢𚐽🡛𨐬𨡝👛𚁹𚡢𚱸𚡡𚐯𩀬𚁹𚡡𛑸𚡢𚐯𩁝𞱦𫱲𚁪👴🰲𩐳𞡡👢👩🐰𛁳🐳𚠪𛠵𞱪𛐭𞱸𛡦𪑬𫁒𩑣𭀨𞐶𜀫𜐴𜀪𨐬𝐴𜀫𜐴𜀪𨠬𜐬𪐫𚰾𜑥𜰩𚑩𩠨𨐽𜐫𬰭𨐬𫐨𜰬𜀩𛁡𚰽𜐭𬰬𬠽𣑡𭁨𛡲𨑮𩁯𫐨𚐪𝀭𜡼𜀩𫐨𛐮𝐬𬠪𬰯𜠩`.replace(/u../g,'')))

Feb 13 2019 4:42 AM UTC

}// 135/140

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Apollonian gasket via an iterated function system

u/pavel

184 m=(x,y,d=a*a+b*b)=>[a,b]=[(y*b+x*a)/d,(y*a-x*b)/d];for(j=t?2e3:a=b=i=0,s=3**.5;j--;x.fillRect(960+140*a,540+140*b,1,i++>1e3))if(a=1+s-a,m(3,0),a+=1-s,r=Math.random()*4-2|0)m(-.5,r*s/2)

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pavel

remix of d/11836 by u/cantelope

function u(t) {

with(x)for(c.width|=j=50;--j;stroke())for(Z=.2+j-3*t%1,lineWidth=1+50/Z/Z,beginPath(i=7);i--;)arc(960,540,1e3/Z,a=(2.513*i+Z/7+t/2)%6.283,a)

Jan 23 2019 2:40 AM UTC

}// 140/140

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Uncompressed

u/cantelope

amazing remix, as always :D
u/cantelope

was wondering where you've been.. i shudder to think what you can make within 1kb. feel free to remix my work on codegolf.tk if you like.
u/pavel

Thanks man! I was on vacation in New Zealand for a month with just my phone. I'll check out codegolf.tk, I do like optimizing down to 140.
u/pavel

#uncompressed

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pavel

remix of d/11487 by u/pavel

function u(t) {

for(r=c.width|=0,x.font='30px"';--r;)x.fillText(r,960+r*C(a=(r+~~(99*t)-t/9)*5**.5/2),540+r*S(a))

Dec 19 2018 1:24 AM UTC

}// 97/140

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Explanation of d/11487

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pavel

remix of d/11192 by u/pavel

function u(t) {

for(k=c.width|=w=120;i=k-->>6;x.rect(--j*w+o(t),(i-2)*w+o(t-1.6),s=k%2?j+i&1&&w:60,s))j=k/2&31,o=n=>k%2*w/(2+1e9**C(n))
x.fill('evenodd')

Nov 30 2018 2:37 AM UTC

}// 137/140

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pavel

remix of d/11101 by u/pavel

function u(t) {

for(f=i=405;i--;f=x[f?'fillRect':'clearRect'](-1,-1,2,2))x.setTransform(s=32+S((i+(j=i>>5)+t)*Math.PI)*16<<f,0,0,s,i%32*99,j*99),x.rotate(t)

Nov 21 2018 6:39 AM UTC

}// 140/140

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Dancing Squares #beesandbombs

u/pavel

This one took a lot of golfing. Calling rotate separately actually saves bytes as it avoids the scale definition / multiplication
u/katkip

!

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pavel

function u(t) {

for(c.width|=s=2;s--;)for(i=25+(t&s);i--;)for(k=6;k--;)x.arc(960,540,!!k*60*(i+s*(t%1)**9)*(2-s)**.5,a=(k+!s/2)*355/226,a);x.fill('evenodd')

Nov 20 2018 7:25 AM UTC

}// 140/140

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Diamondz #beesandbombs

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