Dweets awesomed by u/hauntedg

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: #ScaryMovies

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hauntedg

remix of d/26792 by u/hauntedg

function u(t) {

for(c.width+=i=0,q=t*9,d=-150*S(q),a=~~(q/Math.PI)%2;i<9;i++)x.fillRect(400+(i>7?800+(a&&d):i?i*99:a||d),400+(i>7?a&&-d/2:i?0:a||d/2),40,40)

Jan 9 2023 10:45 PM UTC

}// 140/140

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Adding vertical swing

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hauntedg

function u(t) {

for(c.width+=i=0,q=t*9,d=-150*S(q),a=~~(q/3.14)%2;i<9;i++)x.fillRect(400+(i>7?800+(a&&d):i?i*99:a||d),400,40,40)

Jan 9 2023 4:56 PM UTC

}// 112/140

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Newton cradle, first draft

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andrea270872

function u(t) {

c.width=1920
for(n=~~(t*39)%250;n--;)for(k=n+1;k--;~n&k?x.fillRect(n*7,k*7,7,7):0);

Jan 5 2023 11:23 AM UTC

}// 83/140

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pascal triangle mod 2 = sierpinski

u/andrea270872

according to Wolfram "The binomial coefficient (n over k) mod 2 can be computed using bitwise operations AND(NOT(n), k)"
u/andrea270872

https://mathworld.wolfram.com/SierpinskiSiev…
u/andrea270872

which is what I did here :)

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danny@hille.dk

function u(t) {

c.width+=0;for(X=40;X--;x.font=`3cm'`)for(Y=30;Y--;)C(X/2)/S(Y/3)>1&&x.fillText('🐝',X*50+S(t+X/14)*55,Y*50+C(t+X/21)*55)

Jan 4 2023 5:46 PM UTC

}// 120/140

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Bring out your best buzzing bee puns

u/danny@hille.dk

ChatGPT's best bee and hexagon joke: Why couldn't the bee fit into the hexagon-shaped hive? Because it was a little too square!🐝🐝🐝

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Pascal

function u(t) {

c.width|=0;a=n=>6.3*S(n*1.3%1.6)**5+t*4;x.lineWidth=25;x.arc(960,540,70,a(t),a(t+4)+.2);c.style.filter='invert(.7';x.stroke()

Jan 2 2023 12:26 AM UTC

}// 125/140

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#smooth #loading #spinner

u/robbyg

I waited WAY too long for this one to "load".
u/cantelope

😂
u/joeytwiddle

same lol

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KilledByAPixel

remix of d/17031 by u/KilledByAPixel

function u(t) {

for(U=431,Z=i=2e3;i--;t+=i%U?0:7)q=t%4,Q=Z*(t>>2),T=i*Q%U*q,x.fillRect(~x.clearRect(U+Q%967+T*S(i),U+Q%U+T*C(i)-q*U+q*q*U,i%9,9-4*q),i,Z,.2)

Jan 1 2023 12:23 AM UTC

}// 140/140

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Happy new year! 🥳

u/KilledByAPixel

#fireworks
u/vain

Thx! Nice, happy new year ;-)

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KilledByAPixel

remix of d/25022 by u/KilledByAPixel

function u(t) {

with(x)fillStyle=t*(a=t<.1)?'#fc0':'#06c',a?fillRect(0,t?540:0,b=2e3,b):clip(rect(0,540,b,b)),font='34em impact',fillText('UKRAINE',45,764)

Mar 2 2022 7:09 PM UTC

}// 139/140

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We Stand With Ukraine 💙💛

u/neimad

F U RUSSIA!
u/vain

Solidarity for Ukraine! (Nice - didn't know the clip effect before.)
u/joeytwiddle

#ukraine #flag

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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

Show more comments…
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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KilledByAPixel

function u(t) {

c.width|=S=(E,X)=>
x.strokeText(E,40,130+X*150,1850,
x.setLineDash([199-199*C(X-t),99]))
x.font='9em"'
x.lineWidth=9
code.split`
`.map(S)

Sep 1 2020 2:01 AM UTC

}// 137/140

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Disappearing Reappearing Quine #subliminal #quine

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u/danny@hille.dk

Dyslexia simulator :-)
u/magna

A new technique emerges!
u/KilledByAPixel

Sexlexia, a very sexy learning disability.
u/DataMeta

Dude! :O
u/Xen

Nice!!
u/aaaaaz

no way
u/vain

Holy shit. I need to check and understand the source.

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tomxor

remix of d/19550 by u/tomxor

function u(t) {

for(w=c.width&=i=8320;i--;u[i]=t?p<w?r%.7*(p+u[i-w]+u[i-w+1])&w-1:p:(~r-14&16)<<r*.6)p=u[i],x.fillRect(i%w,Y=68-i/w,1,p**.4/7-Y/w),r=i*t^i&Y

Aug 19 2020 11:53 PM UTC

}// 140/140

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#castle #fire

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u/tomxor

Took some hints from d/11257 for the fire, but made it more minimal. Thanks to u/KilledByAPixel for the c.width&= trick that allowed to fit some nicer gradient and fire effect.
u/jellyedwards

That's incredible! How does the c.width&= trick work?
u/KilledByAPixel

c.width is 1920, 1920 & 8320 is 128, this way you don't need to write 128 for the width
u/tomxor

This is a bit verbose, but I found it easier to understand in binary: 1920 == 0b0000011110000000; 8320 == (8192 | 128); 8320 == 0b0010000010000000; (1920 & 8320) == 0b0000000010000000. In other words i needs to be roughly 8e3 to fill the screen, 8192 (the 14th bit) is not in 1920 so we can use it without affecting w. w needs to be quite small, 128 (the 8th bit) is the lowest bit available in 1920, which is why it's produced with AND.
u/magna

This is nuts.
u/magna

Please do a write-up on this Dweet.
u/jellyedwards

Thanks for the explanation
u/aleamb

absolutly amazing
u/DataMeta

+1 to magna's request
u/joeytwiddle

Pretty great!
u/13thptr

What u/magna said.
u/Xen

Sexy business right here
u/tomxor

Ok why not, I will do writeup, but need to make blog first :P I will post here and discord when done.

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