Dweets by u/tomxor

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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tomxor

remix of d/25008 by u/Joachim

function u(t) {

for(c.width=w=i=128;++i<9e3;x.fillRect(C=i%w,T=i/w,u=w/T,.4+!~~s-T/2*(s/2&l)))s=2*C/T-u-S(t+u/3)*u/2,l=8*t+u&1,x.fillStyle=R(u*16,s*8|l||i)

Feb 23 2022 2:22 AM UTC

}// 139/140

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Smolr #road into the #sunset

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u/tomxor

Combined the three separate fills/clears by inverting the technique to render each pixel. road=!~~s buildings=s/2&l lines=s*8|l
u/KilledByAPixel

wow!
u/pavel

That's amazing
u/magna

wow
u/Joachim

That is so awesome!
u/rep_movsd

This has to be one of the all time greats #underrated
u/stephanegeorget

incredible!
u/danny@hille.dk

Superb!
u/danny@hille.dk

for(c.width=w=188,i=2e4;i--;x.fillRect(C=i%w,T=i/w,u=w/T,.4-T/2*(s/2&l)))x.fillStyle=R((f=9*(s=2*C/T-u+S(u/2+t)*u/4)|(l=8*t+u&1)||w)+u*19,f+u*7,f)
u/tomxor

Oh nice, that one feels more toasty @Danny
u/Odog8

Woah! nice work
u/joeytwiddle

Amazing! Another impossible dweet!

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tomxor

remix of d/24801 by u/rep_movsd

function u(t) {

for(c.style.filter='invert(1',t?i=5e4>>t:G=X=Y=.8;i--;x.fillRect(960+X*19,540+Y*29,.2,.2))Z=X,X=G+Y*1.01-Y**3/7e3,G=4*X*X/(1+X*X)-X*.8,Y=G-Z

Jan 20 2022 11:56 PM UTC

}// 140/140

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Smolr Fluffier Gumowski-Mira Mythic Bird

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tomxor

remix of d/24763 by u/KilledByAPixel

function u(t) {

for(t*=60,i=33e3;--i;)
x.fillRect(X=t%8<<8|i&255,Y=t>>3<<7|i>>8,1,((X&Y)+i)/t%2)

Jan 14 2022 8:30 PM UTC

}// 80/140

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Deterministic Micro Texture Study

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tomxor

remix of d/19550 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𩠽𚁮𛁭𚐽🡮🱭𙡦𚁮𛐶𛁍𨑴𪀮𨑢𬰨𦀭𝠴𚐾𦐭𫡼𦐭𫠾𫠫𝀩𞡭𛁣𛡷𪑤𭁨👷🐱𜠷𛁩🐸𜐹𜠻𪐭𛐻𭀿𪐾𭱼𬠥𭰿𬀦𥁛𬠽𪐫𭰫𬠥𜱝🀱𙠦𛐭𥁛𪑝𙠫𚱔𦱲𧐺𥁛𪑝🐱𞡔𦱩𧐽𘑦𚀲𝀬𜐩𚠲𚑰👔𦱩𧐬𮀮𩡩𫁬𤡥𨱴𚁘👩𙡷𛁙👩𛱷𛀱𛀱𛑰𛰳𚐬𬠽𪐪𭀪𦁞𦐻`.replace(/u../g,'')))

Dec 24 2021 5:05 PM UTC

}// 139/140

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#xmas #tree #snow

u/danny@hille.dk

Nice!
u/KilledByAPixel

awesome
u/stephanegeorget

No way - this is crazy - there is one character left: enough to cram colors and 3D in there?
u/magna

Water-repellent tree
u/Joachim

And floating! :D

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tomxor

remix of d/24387 by u/pavel

function u(t) {

s=R>15?16:(R|=0,X=R%4*8,Y=R/4<<3,b=32)
b&1?X+=b%4-2:Y+=b%4-1;b+=473545>>R/8%21&!(R++%8)
x.fillRect(450+s*X+s/.3,s*Y+s/.3,s,s)

Nov 28 2021 11:10 PM UTC

}// 125/140

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Smolr Pen Pattern v2

u/tomxor

Slower and no loops :)
u/pavel

Very nice golfing. Let's see if we can fit a bigger pattern in a dweet.

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tomxor

remix of d/24387 by u/pavel

function u(t) {

for(i=128;i--;x.fillRect(704+X-s*4.5,Y+s*3.5,s,s))s=t?16:(X=i%4<<8,Y=i/4<<8,b=32),b&1?X+=b%4-2:Y+=b%4-1;b+=468199>>t*60%21&1

Nov 28 2021 6:23 PM UTC

}// 124/140

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Smolr Fastr Pen Pattern

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u/tomxor

... but less satisfying
u/cantelope

first time, ever, i've seen an improvement on any of pavel's designs :)
u/tomxor

True, Pavel's dweets are pretty tight. Usually the most I can hope for is -1 char :P
u/tomxor

d/24387 restored the slow draw, and removed the for loop for only +1 char
u/tomxor

Sorely missing an edit button: I mean d/24396
u/vain

amazing code and algo!

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tomxor

remix of d/24161 by u/FireFly

function u(t) {

with(x)for(i=64;i--;font='4cm"')fillRect(X=i%8*T,Y=i/8<<7,X+Y&T,t?fillStyle=R(T):T=128),fillText('♜♞♝♚♛♝♞♜♟♟♟♟♟♟♟♟'[i^(i>>5)*63]||'',X,Y+T)

Oct 19 2021 3:15 AM UTC

}// 139/140

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smolr #chess board

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u/tomxor

different strategy, draw the board on the first frame, pieces on the rest
u/FireFly

ohhh that is good, was too tunnelled in on the setups I'd tried.. good job 🎉
u/TGY

now comes the real challenge "e2-e4"
u/tomxor

fillText Y=i==52?Y-T:Y+T, but can't animate with this method. Don't think it's going to be possible in 140 ether.
u/DataMeta

ugh yes. so satisfying
u/sigveseb

very good, but the king and queen on one side are reversed!
u/tomxor

oops good spot

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tomxor

remix of d/24141 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𩠽𧰽🡓𛰶𞀭𜐮𞀸𯁃𛰱𝠭𝀮𜑼𤰫𝀦𞀬𭰽𨰮𭱩𩁴𪀦👩🐳𜰰𜠴𞱩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𤰽𪐦𜠵𝐬𠰽𪐾🠸𛀱𛁱🐲𚡰𯀰𚐬𤠽𚁰𛑱𚐯𜐶𛁵𦱔𧐫🐳𚡒𛁵𦱔👩𛑷𧐫🐵𚡒𛁵𦱔𛐱𧐽𤠩𬀽𚁵𦱩𧐫🐷𚡒𚐫𚁦𚀩🱦𚁓𛐽𝀬𠰭🐴𚐿𚁓𚡓𚱃𚡃𚐯𞑥𝀫𛠱𞠱𞠰𚑼𯀰`.replace(/u../g,'')))

Oct 16 2021 12:50 AM UTC

}// 140/140

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#default Floyd–Steinberg #dithering

u/ciaccodavide

oooooh, I love dithering! Nice one!
u/tomxor

me too :) I didn't realise how simple the algorithm was before no, and it can be done in a single pass because it's only half a 2d kernel. Tweaking the coefficients (*R) can be fun, e.g 7*R=>5*R, 3*R=>5*R better preserves the dark and light areas in this image.
u/magna

Wow
u/sigveseb

Very nice!

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tomxor

function u(t) {

for(w=c.width&=i=8320;i--;x.fillRect(S=i&127,C=i>>7,1,q=2*p|0),R=(p-q)/16,u[T]+=3*R,u[T=i-w]+=5*R,u[T-1]=R)p=(u[i]+=7*R)+(S*S+C*C)/8e3-1||0

Oct 15 2021 11:21 PM UTC

}// 139/140

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Floyd–Steinberg #dithering

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tomxor

remix of d/24055 by u/Joachim

function u(t) {

with(x)for(i=0;i<9;stroke())lineTo(a=8*i,b=50+5*C(t-i)),lineTo(a-5*S(t-i),b+9),lineTo(a,b),fillRect(i&&(a-t)%21*6,64,i||(c.width=128),1-i++)

Oct 10 2021 12:47 PM UTC

}// 140/140

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Mini Stick Millipede

u/danny@hille.dk

Great golf
u/Joachim

clever!

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