Dweets awesomed by u/joeytwiddle

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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magna

function u(t) {

T.valueOf=Math.random
x.setTransform(T,T,T,T,T,T)
x.fillStyle=R(0,0,0,T)
x.fillRect(999,999,99,99)

Jun 6 2018 3:45 PM UTC

}// 98/140

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Proof-of-concept of using valueOf to prevent function call parenthesis (()) to save space when a function is used at least 5 times.

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loni_art

function u(t) {

function U(X,Y,w,i){(i&&w>1)?(x.fillRect(X,Y,w,50),U(X,Y+99,w/4,i-1),U(X+2*w/3,Y+99,w/3,i-1)):0}
U(0,0,c.width,Math.floor(t));

Jun 6 2018 4:18 AM UTC

}// 126/140

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Dust

u/joeytwiddle

I can't or won't say who invented this. Or did I? Reread this. Pause. Reread this.
u/loni_art

made by the guy who's surname is the worst way to say "singer" in spanish

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Xen

remix of d/8432 by u/firegodjr

function u(t) {

for(c.width|=i=f=750;i--;)x.fillRect(S((i-t*299)/79)*f*S((i+99*C(t))/12)+f,i*5,9*i,4+C(t))

Jun 5 2018 6:00 PM UTC

}// 90/140

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u/joeytwiddle

Is this #water or #fire ?
u/firegodjr

yes
u/PiggyClone205

This ^
u/katkip

it is #road

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pythech

function u(t) {

t==0?document.write('<video autoplay controls loop height=320><source src="//video.twimg.com/tweet_video/DetcoYOXUAAQYm9.mp4"></video>'):0

Jun 5 2018 1:06 PM UTC

}// 138/140

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credits: https://twitter.com/beesandbombs/status/1002…

u/pythech

cheesy :(
u/BalintCsala

Chrome doesn't autoplay
u/S.T.L.K.R.

thats cheating :P

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veubeke

function u(t) {

r=Math.random
for(a=2e3;a--;x.fillRect(a,b,9,9))_=r(b=r()*960)*200>Math.hypot(a-960,b-400)-99,x.fillStyle=R(s=(_?7:r()+2)*40,s,220+_*r()*20)

Jun 5 2018 12:11 PM UTC

}// 140/140

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u/joeytwiddle

#sun in #sky or possibly reflected in #water aka #sea aka #ocean
u/aleamb

amazing!

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joeytwiddle

remix of d/8414 by u/joeytwiddle

function u(t) {

for(c.width|=0,i=3500;i--;x.beginPath())x.globalAlpha=.03,x.arc(S(i**.5-t*9)*i*i/1e4+960,C(i**.5-t*9)*i*i/1e4+540,i**2/8e4+2,0,7),x.fill()

Jun 5 2018 9:59 AM UTC

}// 138/140

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Soft shaded spiral

u/joeytwiddle

This is what I was going for, but it's kinda boring
u/zanella

No boring at all, I think it's the best spiral I've seen here. :)
u/joeytwiddle

tx zanella :) Derived from d/8393 by firegodjr and BirdsTweet
u/iverjo

#shading #spiral
u/iverjo

This has to be one of the best spirals I've seen on Dwitter

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joeytwiddle

remix of d/8393 by u/firegodjr

function u(t) {

for(c.width|=0,i=4e3;i--;x.beginPath())x.globalAlpha=.03,x.arc(S(t*6+i*i/99)*i*i/1e4+960,C(t*6+i/99)*i*i/1e4+540,i/30+2,0,7),x.fill()

Jun 5 2018 9:45 AM UTC

}// 133/140

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Soft spiral happy accident 1

u/hollo47

I'm experiencing some Rorschach thing, that's a dog's face!
u/joeytwiddle

It's curious how a small bug in the spiral code seems to have produced some straight lines

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firegodjr

remix of d/8369 by u/BirdsTweetCodersDweet

function u(t) {

for(c.width|=i=1e3;i--;x.beginPath())x.globalAlpha=.1,x.arc(S(t*2+i/50)*i+960,C(t*3+i/50)*i+540,i/9+2,0,7),x.fill()

Jun 4 2018 4:52 PM UTC

}// 115/140

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u/joeytwiddle

I like the shading effect. It makes the tube appear rounded.

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pythech

remix of d/8355 by u/BirdsTweetCodersDweet

function u(t) {

with(x)for(z=i=1e3;i--;t<=10?fillRect(S(m=t+i/490)*(k=80+t*40)+z,C(m)*k+390,5,5):fillText("debian",600,z))fillStyle='#d51253',font="15em x"

Jun 3 2018 5:24 PM UTC

}// 139/140

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close enough

u/pythech

maybe if someone adjusts the parameters, it will look better
u/BirdsTweetCodersDweet

Your text is invisible :P
u/pythech

Even after 10 seconds? Well it works on my Chrome
u/katkip

#logo

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BirdsTweetCodersDweet

remix of d/855 by u/mxfh

function u(t) {

r=480,g=t+1/r;c.width=r*4;λ=0;for(φ=a=Math.PI/2;φ>-a;φ-=1/r){λ+=a;x.lineTo(C(φ)*S(λ-g)*r+2*r,(C(g)*S(φ)+S(g)*C(φ)*C(λ-g))*r+r)}x.stroke()

Jun 3 2018 1:59 PM UTC

}// 137/140

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