Top dweets by u/danny@hille.dk

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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danny@hille.dk

function u(t) {

for(i=480;i--;)(X=4*i)*X*(Y=frame*4)*Y*7>>8&32&&x.fillRect(X,Y,4,4)

Dec 14 2021 9:26 PM UTC

}// 67/140

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Long time no dweet

u/danny@hille.dk

saw this tweet, and it made me want to play :-)
u/danny@hille.dk

https://twitter.com/yuanchuan23/status/14706…
u/rodrigo.siqueira

These patterns look like some Portuguese Tiles.
u/DeathBoy

LOVE it

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danny@hille.dk

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀽𭰽𜠵𝐻𩡯𬠨𪐽𜀬𩰽𭰪𭰬𬰽𮀮𩱥𭁉𫑡𩱥𡁡𭁡𚀰𛀰𛁷𛁷𚐻𩰭𛐻𚁰👳𛡤𨑴𨐩𦱩𚰽𝁝👷𛰨𝠪𚁘𚡘𚱙𚡙𚐪𚠮𝐫𜰪𦀩𚱴𚡷𙡷𧠨𭰪𨐪𛠹𝐵𚐭𭀪𭰦𭰬𬁛𪐭𜑝👷𚑡👍𨑴𪀮𨑴𨑮𜠨𦀽𛐱𚰲𚠨𩰥𭰩𛱷𛁙🐭𜐫𜠪𩰯𞑥𝀩𞱸𛡰𭑴𢑭𨑧𩑄𨑴𨐨𬰬𜀬𜀩`.replace(/u../g,'')))

Aug 2 2021 6:16 PM UTC

}// 140/140

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#tunnel

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danny@hille.dk

remix of d/23400 by u/danny@hille.dk

function u(t) {

for(Y=t/9-1,i=2e3;i--;x.fillRect(i,60*t,S(X/r&Y/r),1))r=((X=i/540-1.8)*X+Y*Y)/99

Jul 26 2021 8:35 PM UTC

}// 80/140

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Sierpinski vs. M.C. Escher

u/ArthurThuczsec

brilliant code
u/Toby

Beautiful!

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danny@hille.dk

remix of d/23375 by u/danny@hille.dk

function u(t) {

for(c.width=i=256;i--;)'ﰌ숄蠀頀堀灠Ͱ߰蟠莀쀀ﰌ'.charCodeAt(Y=i%16)>>(X=i>>4)&1||x.fillRect(X*6+T(t)*99,Y*6+30,7,6)

Jul 22 2021 9:38 PM UTC

}// 108/140

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Mario bomb

u/robbyg

Bullet Bill
u/KilledByAPixel

#pixelart #mario
u/tomxor

Moar nostalgia pls!

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danny@hille.dk

remix of d/21876 by u/Xen

function u(t) {

for(t?i=768:c.width=w=32,c.style.filter='contrast(4';i--;x.fillRect(X,Y,1,1))x.fillStyle=R(m=S((X=i%w)^t*w+(Y=i/w))*i,m/2)

Mar 8 2021 11:33 PM UTC

}// 122/140

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lo-res #fire?

u/Xen

nice!

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danny@hille.dk

remix of d/21455 by u/Qwitter

function u(t) {

x.fillStyle='#0001'
x.fillRect(0,0,m=2e3,m)
for(i=399;i--;x.clearRect((1+(t%40>5))*(D=540)+(A=D/(t%5))*S(i+t),D+A*S(t+S(i-t)),A/9,A/9));

Jan 28 2021 5:35 PM UTC

}// 136/140

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Well... it's a remix :-)

Show more comments…
u/Qwitter

cool!
u/smtsjhr

wow @ u/danny@hille.dk i was working on something with similar output, but using x.lineTo ! i will share soon, but its over 140 maybe you can help me golf please : )
u/smtsjhr

clever x.clearRect trick! its like you are "erasing" what you intend to draw! ...and it seems interchanging x.clearRect and `x.fillRect' in your code looses the blur effect hmm!
u/smtsjhr

@ u/danny@hille.dk check out d/21499
u/danny@hille.dk

.fillStyle='#0001' sets fill color to black with a transperancy of 16% (this css shorthand hex color notation, denotates color in 4*8bit RGBA, it is in essence the same thing as the standard #RRGGBBAA notaion, but with less resolution) fillRect then fills the intire screen with that blackish color then clearRect is used to "paint" white squares (the main reason is so you only have to use fillStyle once) When the main loop runs again - the white squares are only mostly paintet (84%) over, which results in a kind of motion-blur/glow As far as i know, you cannot use this technique with lineTo since line uses strokeStyle to draw linecolors
u/smtsjhr

u/danny@hille.dk thanks for all the info!

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danny@hille.dk

function u(t) {

!t&&(x.translate(960,540),o=t)
for(i=399;i--;x.fillStyle=R(S(C(t)-S(o*3.14))*127+128),x.fillRect(m=(o%13)*9,m*9,99,99),x.rotate(.09))o+=0.16

Oct 17 2020 10:38 PM UTC

}// 140/140

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u/neimad

I love this website. All of you are amazing crazy programming magicians.
u/galactustrombone

reminds me of the trippy earthground battle backgrounds
u/anotherkitten

thats sick mate
u/Xen

sexy!

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danny@hille.dk

function u(t) {

for(i=c.width*=1;i-=10;u=i-960)for(j=1080;j-=10;T=j-540)x.fillRect(i,j,o=9+C((u*u+T*T)/((i-960*C(t/3)*4)|(j-540*S(t/2)*3))/64-t*9)*2,o)

Dec 3 2023 1:20 PM UTC

}// 135/140

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glitch

u/magna

Awesome!
u/neimad

Seizure warning. But I love it.
u/cantelope

wat

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danny@hille.dk

function u(t) {

//I was todays years old when i found out:
x.font="2cm'";for(i=10;--i;x.fillText(e+'='+eval(e),0,i*75))e=`${i}${i}${i}/(${i}+${i}+${i})`

Oct 23 2023 3:53 PM UTC

}// 136/140

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Math is fun!

u/rodrigo.siqueira

Proof: (111*x) / (3*x) = 111/3 = 37
u/poetaster

Damn. And I thought the answer was 42!

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danny@hille.dk

function u(t) {

t*=60;for(X=2e3;X--;x.fillRect(X,t,b/99,1/b*299))for(p of[[b=99,99],[960,540],[1721,940]])b+=C(Math.hypot(X-p[0],t-p[1])/7)*99

Sep 11 2023 6:29 PM UTC

}// 126/140

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3 point wave interference

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