Dweets awesomed by u/rodrigo.siqueira

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: #Food

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lewdev

function u(t) {

n=t*10|0
for(i=0;i<100;i++){
x.beginPath();x.moveTo(i*50,n);n=n%2?(n*3)+1:n/2;x.lineTo((i+1)*50,n);x.stroke();}

Aug 9 2021 12:06 PM UTC

}// 111/140

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3x+1 Unsolved Math Problem https://youtu.be/094y1Z2wpJg

u/rodrigo.siqueira

Paul Erdős said about the Collatz conjecture: "Mathematics may not be ready for such problems." He also offered US$500 for its solution. https://en.wikipedia.org/wiki/Collatz_conjec…
u/New_Core

I tried to visualize something with the Collatz Conjecture a few weeks ago but I didnt come up with anything good.. I bet someone can do some nice stuff with it here.
u/lewdev

Yeah, I figured there's a way to build out visuals like the ones in the video. I just did a quick one to get started. Math is a great inspiration for dweets.
u/smtsjhr

neat! some more inspiration for visualizing Collats here: https://youtu.be/RzQE2Q7lsT4

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LimeLaser

function u(t) {

m="-.. .-- .. - - . .-." // DWITTER
r="replaceAll"
x.fillStyle=m[r]("-","xx ")[r](".","x ")[2*t|0]=="x"?"#fff":R()
x.fillRect(0,0,2e3,2e3)

Aug 9 2021 12:04 AM UTC

}// 138/140

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Morse Code Blinking (with customizable message)

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KilledByAPixel

function u(t) {

t?onkeydown=e=>A.includes(c=e.code)||A.push(c):(A=[],c.outerHTML='<h3 id=z>')
o='';A.sort().map(e=>o+=e+' ')
z.innerHTML=o+'<p>⌨️ '+A.length

Aug 8 2021 10:23 PM UTC

}// 140/140

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Push Every Key ⌨️ #interactive

u/lewdev

Got tricked into pressing F5.
u/KilledByAPixel

lol same thing happened to me.

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KilledByAPixel

remix of d/23497 by u/danny@hille.dk

function u(t) {

for(c.width=w=255,i=4e4;i--;)x.fillRect(a=i%w,b=i/w,((o=(3-(4-5*(e=((X=2*b-w)*X+(Y=2*a-w)*Y)/w/w)+S(t))**.5)/++e)*Y-w*S(t)&w^X*o+t*w&w)/w,1)

Aug 8 2021 1:41 PM UTC

}// 140/140

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Xor Sphere #uncompressed

Show more comments…
u/danny@hille.dk

Nice work!, I actually did try a solution with fillRect - but it totally kills my laptop, runs kinda ok on my phone though (I get around 11fps with this dweet on my laptop, 28 on my phone)
u/danny@hille.dk

btw nice trick with ++e, i haven't seen that before, I'll put it on my toolbelt right away :-)
u/KilledByAPixel

Yep, had to make some sacrifices for speed. You can do w=127 and get a pretty good fps!
u/danny@hille.dk

this is my aptempt: reduced the resolution to get at bit more performance: c.width=w=127;for(m=w*w;m--;x.fillRect(m%w,m/w,1,(Y*(o=(3-(4-5*e+S(t))**.5)/(e+1))*w+t*w&w^X*o*w&w)/w))e=(X=1-4*m/w/w)*X+(Y=-2+4*(m%w)/w)*Y
u/danny@hille.dk

with the ++e trick its only 137 bytes :-)
u/danny@hille.dk

Sorry i hadnt seen you wrote back, yep i did 127, (any pow(2)-1 will work for the xor pattern)
u/aleamb

#sphere
u/donbright

dude

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ArthurThuczsec

remix of d/23500 by u/rodrigo.siqueira

function u(t) {

v=(a,b,Φ,r)=>{for(i=0;i++<r;x.fillRect(a-=S(Φ)*3,b+=C(Φ)*2,2,4))x.fillStyle=`hsl(${t*i},70%,50%,.1`;r>1&&v(a,b+t/2,b,r*.8)}
v(990,456,t,140)

Aug 8 2021 11:36 AM UTC

}// 140/140

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ArthurThuczsec

remix of d/23507 by u/ArthurThuczsec

function u(t) {

for(f=i=197;i--;x.fillStyle=R(r%f,g%f,b*t%f,.02))x.fillRect(r=960+C(t*i^f)*i*t,g=540+S(t*i^f/2)*i*t,b=199/(t+1),b),x.strokeRect(r,g,b/2,b/2)

Aug 7 2021 7:09 PM UTC

}// 140/140

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danny@hille.dk

remix of d/23497 by u/danny@hille.dk

function u(t) {

eval(unescape(escape`󩭯󬬨󨼮󭽩󩍴󪌽󭼽󜬵󝜬󩌽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󭼬󭼩󛍭󟝷󚭷󛍩󟜭󜜻󫜭󛜻󩌮󩍡󭍡󦽩󚼽󝍝󟝙󚬨󫼽󚌳󛜨󝌭󝜪󩜫󤼨󪜯󫜫󭌪󞜩󚜪󚬮󝜩󛼨󩜫󜜩󚜪󭼫󤼨󭌯󜼩󚭷󙭷󧭘󚭯󚭷󙭷󚝥󟜨󚍘󟜭󜜮󝌫󜬪󫜯󝭥󝌩󚭘󚼨󦜽󛜱󚼲󚬨󫜥󭼩󛽷󚜪󦜩󞽸󛭰󭝴󢝭󨝧󩝄󨝴󨜨󩌬󜌬󜌩`.replace(/u../g,'')))

Aug 7 2021 3:45 PM UTC

}// 138/140

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When you fail, but it still feels like a win remix

u/danny@hille.dk

music by sir mixalot: I like big blobs... 🎵🎵

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rodrigo.siqueira

remix of d/23473 by u/ArthurThuczsec

function u(t) {

v=(a,b,Φ,r)=>{for(i=0;i++<r;x.fillStyle=`hsl(99,40%,${i}%)`)x.fillRect(a-=S(Φ)*1.2,b+=C(Φ),1,3);r>1&&v(a,b+t/2,b,r*=.9)}
v(990,350,0,99)

Aug 7 2021 1:25 PM UTC

}// 136/140

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Weird thing growing #organic #plant

u/danny@hille.dk

I like it!

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danny@hille.dk

remix of d/23481 by u/danny@hille.dk

function u(t) {

eval(unescape(escape`󩭯󬬨󨼮󭽩󩍴󪌽󭼽󜬵󝜬󩌽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󭼬󭼩󛍭󟝷󚭷󛍩󟜭󜜻󫜭󛜻󩌮󩍡󭍡󦽩󚼽󝍝󟜭󦜪󚍯󟜨󜼭󚌴󛜵󚭥󚽓󚍴󚬳󚜩󚬪󛬵󚜯󚍥󚼱󚜩󚭷󛝷󚭓󚍴󚜪󜬦󭽞󦌪󫼪󭼫󭌪󭼦󭼩󩜽󚌨󦌽󛜱󚼲󚬨󫜯󭽼󜌩󛽷󚜪󦌫󚍙󟜭󜜫󜬪󚍭󙝷󚜯󭼩󚭙󚜻󮌮󬍵󭍉󫝡󩽥󡍡󭍡󚍤󛌰󛌰󚜻`.replace(/u../g,'')))

Aug 7 2021 9:54 AM UTC

}// 140/140

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golfed a bit more to add some more movement

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danny@hille.dk

function u(t) {

for(c.width=w=58,i=2e3;i--;x.fillRect(X,Y,1,1))x.fillStyle=R(m=i/7+(S(t+(X=i%w)/9)*C((Y=i/w|0)/9+t*4-C(X/9+t))*9)*5,m/(2+C(t)),m*(2+S(t)/2))

Aug 7 2021 9:08 AM UTC

}// 140/140

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plasma fire

u/neimad

beautiful!

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