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.

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

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pavel

remix of d/15194 by u/robbyg

function u(t) {

with(x)for(i=99;i--;clip(fill(arc(960-r,540-r,500*(1-j**3),0,7))))j=1-i/98,r=200*j,beginPath(fillStyle=`hsl(60,90%,${9+j*40}%)`)

Jul 30 2019 3:52 AM UTC

}// 128/140

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Poor man's ray tracing

u/pavel

Using clip so the light can 'spill over.'
u/katkip

#d3 #ball #sphere
u/rep_movsd

#underrated

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pavel

function u(t) {

eval(unescape(escape`𭀿𨰮𭱩𩁴𪁼🐰𞠨𬰽𩠽𝠰𛁰👛𫠽𜁝𚐻𫐽𫠥𝠴𞱮𚰽𩀽𘑭𯁭🐽𝠲𙡮🀵𝰴🰳𜠺𫐽🐳𜁼𫠽🐳𜐿𛐱𞡭𛐳𜠿𫐭𝠳🱤𞠭𜰲𞠱𞱮𛑦🱰𛡰𫱰𚀩𞡦👍𨑴𪀮𬡡𫡤𫱭𚀩𚠵𝰶𯀰𞱰𛡵𫡳𪁩𩡴𚁮𚐻𬀮𫑡𬀨𭰽𫠽🡸𛡦𪑬𫁒𩑣𭀨𫠥𜰲𚡳𛀨𫠾🠵𚐪𬰬𬰬𬰩𚐻𭰨𩠩`.replace(/u../g,'')))

Jul 22 2019 6:54 AM UTC

}// 137/140

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Simple #snake strategy

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u/pavel

#compressed #waitforit
u/rep_movsd

your compression technique is quite ingenious - smart!
u/katkip

Wow!
u/katkip

#genius
u/KilledByAPixel

👍
u/pavel

The compressor is not mine, its here: d/11852

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pavel

function u(t) {

c.width|=f=k=>(1-3/(4+9e9**(i-.5-t%4)))*w*(-2/(i+k&3)|1)-w/2
for(i=5;i--;x.rect(960+f(2),540+f(1),w,w))w=2**(i?7+t/4%1:12)
x.fill`evenodd`

Jul 18 2019 4:05 AM UTC

}// 138/140

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St[a]ck (https://www.reddit.com/r/perfectloops/commen…)

u/KilledByAPixel

👍
u/Xen

love it
u/metamero

omg so satisfying
u/iverjo

#perfectloop
u/katkip

Awesome!

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pavel

function u(t) {

eval(unescape(escape`𩡯𬠨𫀽𨰮𭱩𩁴𪁼👴𙐽𝀻𫀭𛐻𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛀵𜀬𫰿𝐰𞠱𩐳𚐩𪐽𫀥𜰬𪠽𫀯𜰦𜐵𛁫👬𛰴𞀦𜐵𛁸𛡦𪑬𫁓𭁹𫁥👒𚁩𚰱🀼𝠩𛁸𛡳𩑴𥁲𨑮𬱦𫱲𫐨𪐭𜑼𜐬𛐮𝐬𫰽𛑩𙐲𛀱𚱯𚠱𛠵𛀵𜀪𚀱𞐫𪰭𪠩𛀲𝐪𚀳𞀫𜠪𭀭𪰭𪠭𞀯𚀱𚰲𚠪𚀴𝐭𪰭𪠭𭀪𜐵𚐩𚐩`.replace(/u../g,'')))

Jul 13 2019 3:37 AM UTC

}// 138/140

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Blocks (https://dribbble.com/shots/1783699-Blocks)

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u/pavel

190 for(l=c.width|=t%=4;l--;x.fillRect(0,0,50,o?50:1e3))i=l%3,j=l/3&15,k=l/48&15,x.fillStyle=R(i+1<<6),x.setTransform(i-1|1,-.5,o=-i%2,1+o*1.5,50*(19+k-j),25*(38+2*t-k-j-8/(1+2**(45-k-j-t*15))))
u/KilledByAPixel

👍
u/aleamb

wow!!
u/username

actual f
u/katkip

awesome #compressed
u/katkip

#d3 #loop

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pavel

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼👩🐳𝠻𪐭𛐻𮀮𩡩𫁬𤡥𨱴𚀭𞐹𛀰𛀱𞐸𛀱𞐸𚐩𪰽𚁩🠾𜐩𛐸𛑴𙐱𛁢👃𚁁👍𨑴𪀮𤁉𚠨𪐭𜐯𝀫𜐯𚀱𚰱𩐴𚠪𪰩𚐩𛁸𛡦𪑬𫁓𭁹𫁥👩𙐲🰧𘱄𡁄𙰺𙰣𝠶𝠧𛁸𛡳𩑴𥁲𨑮𬱦𫱲𫐨𨐽𤰨𠐩𛁢𛰲𛀭𨠬𨐯𜠬𞐶𜀫𪰪𜐳𜠬𝐴𜀭𪰪𝠶𛐱𞐸𛰨𜐫𪰪𚠴𚐩`.replace(/u../g,'')))

Jul 9 2019 4:35 AM UTC

}// 140/140

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The fit (https://www.reddit.com/r/perfectloops/commen…)

u/pavel

Simplified. Seems too hard to fit even into 194 chars.
u/pavel

194 for(c.width|=i=36;i--;x.fillRect(-99,0,198,198))k=(i>>1)-8-t%1,b=C(A=Math.PI*(i-1/4+1/(1+1e4**k))),x.fillStyle=i%2?'#DDD':'#666',x.setTransform(a=S(A),b/2,-b,a/2,960+k*132,540-k*66-198/(1+k**4))
u/aleamb

love it!
u/katkip

Love it too

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pavel

function u(t) {

eval(unescape(escape`𩡯𬠨𪐽𨰮𭱩𩁴𪁼👦👮🐾𚀨𪐯𜰪𚡮𯀰𚐥𜰭𜐩𚠨𞐸𚰹𞀯𚀱𚰱𩐹𚠪𤰨𭀭𫠭𜰩𚐩𞱩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𜀬𜀬𞐹𛀹𞐩𚑸𛡦𪑬𫁓𭁹𫁥👒𚁳👩𙐳𛁳𚰱🀼𝠩𛁸𛡳𩑴𥁲𨑮𬱦𫱲𫐨𬰭𜑼𜐬𨐽𛐮𝐬𛑳𙐲𛁾𬰦𜑼𯁡𛀹𝠰𛑦𚀱𚐫𩠨𜠩𛀵𝀰𛑦𚀱𚐯𜠭𩠨𜠩𛰲𚱦𚀳𚐩`.replace(/u../g,'')))

Jul 8 2019 2:13 AM UTC

}// 140/140

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Divide (https://www.reddit.com/r/perfectloops/commen…)

u/pavel

192 for(i=c.width|=f=n=>((i/3**n|0)%3-1)*(98+98/(1+1e9**S(t-n-3)));i--;x.fillRect(0,0,99,99))x.fillStyle=R(s=i%3,s+1<<6),x.setTransform(s-1|1,a=-.5,-s%2,~s&1||a,960-f(1)+f(2),540-f(1)/2-f(2)/2+f(3))
u/pavel

194**
u/aleamb

wow!
u/katkip

nice #compressed

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pavel

function u(t) {

for(c.width|=i=4;--i;x.arc(480*i+R-30*o,540,R>0?R:-R,0,7))o=2-(t+1.5-i)%3/3*4,R=15*o+60/o;t&1&&x.arc(0,540,1e4,0,7);x.fill`evenodd`

Jul 6 2019 3:54 AM UTC

}// 131/140

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Show more comments…
u/pavel

Based on https://www.reddit.com/r/loadingicon/comment…
u/joeytwiddle

That's a nice subreddit for inspiration
u/KilledByAPixel

👍
u/Xen

love it!
u/magna

Awesome!
u/katkip

wow!
u/aleamb

love it!
u/Joachim

#loading

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pavel

function u(t) {

eval(unescape(escape`𬀽𣑡𭁨𛡐𢐻𫰽𤰨𭀪𬀯𜠩𞱏👴𛰲𙐳𯀰𞱸𛡦𪑬𫁓𭁹𫁥👯🀰🰧𘱦𩡦𙰺𤠨𚐻𩡯𬠨𪠽𜠰𜀻𦐽𪠭𛐾🠴𞱸𛡦𪑬𫀨𚐩𩡯𬠨𮀮𨡥𩱩𫡐𨑴𪀨𪐽𝀩𞱩𛐭𞰩𮀮𨑲𨰨𝠹𚠨𪠥𜐶𚠲𛑙𙐲𛑏𚐬𝠹𚠨𚁙𚱏𛰳𚐪𜰪𚠮𝐭𝀩𛀱𜰸𚡯𚡯𛁡👰𛰳𚠨𜠪𪐭𫰪𫰭𜰯𜠩𛁡𚐻`.replace(/u../g,'')))

Jul 3 2019 4:25 AM UTC

}// 137/140

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Triangles #loop

u/pavel

187 p=Math.PI;o=S(t*p/2);O=t/2%3|0;x.fillStyle=o<0?'#fff':R();for(j=200;Y=j-->>4;x.fill())for(x.beginPath(i=4);i--;)x.arc(69*(j%16*2-Y%2-O),69*((Y+O/3)*3**.5-4),138*o*o,a=p/3*(2*i-o*o-3/2),a)
u/KilledByAPixel

👍
u/katkip

#beesandbombs
u/katkip

#compressed

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pavel

remix of d/14846 by u/KilledByAPixel

function u(t) {

r=_=>Math.random();(frame-1)%600?0:d=r(m=r(c.width=960))
f=g=>260*((1-m)*g(a=8*t)+d*m*g(a-a/m))
x.lineTo(480+f(C),270+f(S));x.stroke()

Jul 1 2019 7:54 AM UTC

}// 134/140

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#spirograph generator

u/pavel

I believe this generates all valid spirographs, at least the circle with a small pencil hole rolling in a circle ones.
u/pavel

The incremental drawing is not parameter aware so at the extremes its too slow / too fast and choppy
u/pavel

I was gonna improve this by using the period of a spirograph but gave up deriving it.
u/pavel

I think the period is the denominator of 1-1/m expressed as an irreducible fraction.

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pavel

remix of d/14840 by u/pavel

function u(t) {

x.beginPath(x.lineWidth=FPS=p=Math.PI)
k=frame
k%2?n=99:(n=2+k/2,r/=C(p/n))
for(j=n+1;j--;)x.arc(960,540,t?r:r=60,a=2*p*j/n+11,a)
x.stroke()

Jun 30 2019 10:28 PM UTC

}// 140/140

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u/katkip

Wow! Perfect geometry

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