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.

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

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pavel

function u(t) {

x.font='9em"';T>-99&T<2e3?c.style.background='#070':(h=300,T=8+t%4<<7,p=q=5+t%9);h-=p-=3;x.fillText('🎴',T+=q&1?q:-q,h>1e3?(p*=-.8,h=1e3):h)

Dec 18 2019 4:43 AM UTC

}// 139/140

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#solitaire

u/username

d/13995

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pavel

remix of d/14826 by u/KilledByAPixel

function u(t) {

for(w=j=c.width|=f=o=>500*C(q=22/7/(3+~~o*5%8))/C((a+t)%(2*q)-q);a=44/7*--j/w;x.arc(960,540,f(t+1)*e+f(t)*(1-e),a,a))e=(t%1)**9
x.fill()

Jun 29 2019 7:03 AM UTC

}// 136/140

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u/13thptr

smooth
u/katkip

wooow
u/KilledByAPixel

I knew pavel would make it better. ;)
u/KilledByAPixel

https://imgur.com/MDGvSaU
u/donbright

amazing

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pavel

function u(t) {

eval(unescape(escape`景爨挮睩摴桼㵯㵛椽眽㤶そ㭩ⴭ㬩潛楝㵛㈮ㄫ䌨愽椫琯㤩⩃⡢㵩⨲〩ⱓ⡡⤪䌨戩ⱓ⡢⤬恨獬⠤筩紬㘹┬㔰╠崻景爨孚ⱘⱙⱸ⹦楬汓瑹汥嵯映漮獯牴⠩⹲敶敲獥⠩⥸⹦楬汒散琨眫眪堯娬㔴〫眪夯娬猽㔰⽚⽚ⱳ⤻`.replace(/u(..)/g,"$1%")))

May 8 2019 7:09 AM UTC

}// 139/140

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Depth demo

Show more comments…
u/pavel

181 for(c.width|=o=[i=w=960];i--;)o[i]=[2.1+C(a=i+t/9)*C(b=i*20),S(a)*C(b),S(b),`hsl(${i},69%,50%`];for([Z,X,Y,x.fillStyle]of o.sort().reverse())x.fillRect(w+w*X/Z,540+w*Y/Z,s=50/Z/Z,s)
u/pavel

Notice how the objects 'in front' are always drawn 'in front'
u/pavel

This requires a bunch more chars and is only needed when objects have unique colors, which requires more. It seems impossible to do this without compression.
u/pavel

Pretty simple technique, when generating the 3d points instead of directly drawing them, store them in an array, sort it by depth back to front, then draw.
u/keithclark

175. Removed need for reverse() by reversing the projection (far points are painted near and vice-versa): for(c.width|=o=[i=w=960];i--;)o[i]=[C(a=i-t/9)*C(b=i*20),S(a)*C(b),S(b),hsl(${i},69%,50%];for([Z,X,Y,x.fillStyle]of o.sort())x.fillRect(w+w*X/(j=2.1-Z),540+w*Y/j,s=50/j/j,s)
u/keithclark

158 - for(c.width|=o=[i=w=708];i--;o[i]=[C(a=i+t)*C(b=i*20),S(a)*C(b),S(b),R(a)]);for([Z,X,Y,x.fillStyle]of o.sort())Z-=2,x.fillRect(960+w*X/Z,540+w*Y/Z,s=50/Z/Z,s)
u/Joachim

#d3 #ball

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pavel

function u(t) {

for(c.width|=i=20;i--;x.rect(-r,-r,2*r,2*r))r=(i-3*t%2)*60,r*=r>0,x.setTransform(1,0,0,1,960,540),x.rotate(S(r/500))
x.fill('evenodd')

Feb 12 2019 9:15 AM UTC

}// 134/140

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pavel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁣𛡷𪑤𭁨𯀽𬐽𛠵𜠬𪠽𝰻𬠽𝰵𚡪𛐭𞰩𩡯𬠨𨱬𩑡𬡒𩑣𭀨𛠮𛡯👛𞐶𜀭𬠬𝐴𜀭𬠬𬠪🐲𛁲𧐩𛁣𫁩𬀨𬡥𨱴𚀮𛠮𫰩𚐬𪐽𜐲𞱩𛐭𞱦𪑬𫀨𨑲𨰨𞐶𜀬𝐴𜀬𬠬𨐽𭀪𚀸𛑪𚐯𜐶𚱩𚡱𛁡𚰽𬐯𜠩𚐩𨡥𩱩𫡐𨑴𪀨𚐬𫑯𭡥𥁯𚀹𝠰𛀵𝀰𚐻`.replace(/u../g,'')))

Feb 11 2019 9:04 PM UTC

}// 133/140

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➰ #beesandbombs

u/pavel

179 with(x)for(c.width|=q=.52,j=7;r=75*j--;)for(clearRect(...o=[960-r,540-r,r*=2,r]),clip(rect(...o)),i=12;i--;fill(arc(960,540,r,a=t*(8-j)/16+i*q,a+=q/2)))beginPath(),moveTo(960,540)
u/BuRRak

It shows 223/140 for me, Chrome 72.0.3626.96
u/pavel

This was compressed using d/11852
u/pavel

#compressed

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pavel

function u(t) {

f=(X,Y,r,a)=>r&&x.moveTo(X+=r*S(a),Y+=r*C(a))|x.arc(X,Y,r,0,7)|f(X,Y,r>>=1,a+=S(t))|f(X,Y,r,a+3);c.width|=0;f(960,0,540,0);x.fill('evenodd')

Nov 19 2018 4:46 AM UTC

}// 140/140

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B&W Circles #beesandbombs

u/katkip

Cool #fractal but this is actually easier to make using drawImage
u/pavel

drawImage? How?
u/katkip

Look at my last fractals

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pavel

remix of d/10801 by u/f8f82804

function u(t) {

c.width=480
for(k=5;k--;)for(n=7;n--;x.lineTo(240+99*r*S(p=(n<4?n:n-4)/1.6+1.26*k-t),50*r*C(p)+70*(n<4?n:6-n)))r=n%3>0
x.stroke()

Oct 31 2018 8:52 PM UTC

}// 129/140

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u/f8f82804

amazing! #wireframe #d3 #perspective #decahedron #d10
u/f8f82804

oops, looks like this doesn't use any perspective transfrom
u/iverjo

Nice!
u/f8f82804

#pentagonal #trapezohedron

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pavel

function u(t) {

for(i=5e3,t||x.fillRect(0,0,i,i);i--;x.clearRect(960+s*X,540+s*(i&1?Y:-Y),3,3))X=2*(60*t%15-7)+C(a=i/7),Y=(4*t<<1)+S(a),s=500/(X*X+Y*Y)

Nov 18 2021 1:07 AM UTC

}// 135/140

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Round and round

u/donbright

awesome
u/donbright

#circlepacking

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pavel

function u(t) {

for(x.fillRect(0,0,i=c.width=960,i);i--;x.fillText(i*i,480+i*C(a)/4,i*.6))k=i%2,x.fillStyle=R(k*i,!k*i,0,.6+S(a=i/20+3*k-S(t))/2)

Dec 25 2019 8:04 PM UTC

}// 129/140

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Merry #christmas

u/pavel

#tree

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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

Show more comments…
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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