Dweets awesomed by u/eruonna

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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prawnwarp

function u(t) {

c.width|=0;for(i=0;i<1920;i+=64){for(j=0;j<1080;j+=64){x.fillStyle=`hsla(${i*j},50%,50%,.3)`;s=S((t*j*.01+i))*64+64;x.fillRect(i,j,s,s);
}}

Apr 21 2017 1:53 PM UTC

}// 139/140

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u/magna

So pretty!
u/cantelope

you can omit the closing parenthesis for hsla and save 1 delicious byte :)
u/donbright

man this is nice

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phst

function u(t) {

c.width=1920;
  for(i=0;i<100;i++)
  x.fillRect(100+i*15,400+S(2*t+i)*250,8+S(i)*80,10+C(2*t-i)*100)

Apr 19 2017 2:52 PM UTC

}// 100/140

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prawnwarp

function u(t) {

function r(){return Math.random()*255;}a=960+960*C(t);b=540+540*S(t*.9);x.fillStyle=R(r(),r(),r(),.05);x.fillRect(a,b,1920-2*a,1080-2*b);

Apr 19 2017 2:51 AM UTC

}// 137/140

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eruonna

remix of d/2522 by u/magna

function u(t) {

c.width|=0
t?0:n=0
onkeyup=e=>n++
x.font='50px monospace';
((u+'').slice(0,n%154)+' |'[t&1]).split('\n').map((r,i)=>x.fillText(r,0,++i*50))

Apr 18 2017 6:27 PM UTC

}// 139/140

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Hacker typer

u/sigveseb

nice
u/magna

Can be used when your boss catches you looking at dwitter.net at work.

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MrM@_S

function u(t) {

if(!t)c.width-=d=i=400
onkeydown=e=>{r=e.keyCode;d+=r==65?-1:r==68?1:0;i+=r==74?-1:r==76?1:0;if(r==32)c.width^=0}
x.fillRect(d,i,3,3)

Apr 18 2017 12:52 PM UTC

}// 133/140

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etch-a-sketch A and D as the left knob and J,L as the right knob. Space for a clear

u/Polyducks

This is so smart! Have you drawn anything with it?
u/MrM@_S

sort of...but not anything that great
u/joeytwiddle

Very cool!

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Polyducks

function u(t) {

c.width=1920
x.fillRect(0,0,1920,1080)
x.fillStyle="#AAAAFF"
for(i=0;i<20;i++){
  a=T(t+i)*10
  x.fillRect(888*i%1920,a,20,a)
}

Apr 18 2017 8:33 AM UTC

}// 127/140

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*RAIN DROPS*

u/magna

*JAW DROPS*
u/Jenky

Like melting ice :o
u/Polyducks

Aww thanks you guysss!

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magna

remix of d/2420 by u/magna

function u(t) {

c.width|=0;for(j=9;j--;)for(i=100;i--;s=S(t),X=i%5+j*10+s*30,Y=i/5|0,S(Y+t*7)/4<Math.random()&&x.fillRect(400+X*10,400+Y*10,10,10));

Apr 18 2017 4:06 AM UTC

}// 132/140

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#default #noise

u/iverjo

#random

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neo

function u(t) {

v=255;x.arc(c.width/2+700*S(t*6.75),c.height/2+500*C(7.11*t),0,0,0);x.fill();x.fillStyle=R((v+v*C(2*t)),(v+v*S(1*t)),(v+v*S(5*t)),0.03)

Apr 18 2017 3:47 AM UTC

}// 135/140

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u/Polyducks

Wow! There's so many patterns

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magna

remix of d/1480 by u/magna

function u(t) {

c.width|=0
x.font='50px monospace';
(u+'')
.slice(0,t*3+S(t)*5)
.concat(t*2&1?'|':'')
.split('\n')
.forEach((s,i)=>x.fillText(s,0,++i*50))

Apr 18 2017 1:55 AM UTC

}// 138/140

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Pair programming nightmare

Show more comments…
u/joeytwiddle

that title made me Lol :D
u/sigveseb

:D
u/Jenky

That's a really clever illusion, love it
u/magna

Heh, thanks! Brought it down to 123 chars in hopes of adding occasional mistakes like skipped characters / typos etc., but couldn't immediately find a way. In case anyone wants to give it a shot: https://www.dwitter.net/d/2522
u/donbright

:o
u/Polyducks

Could you make a random function to skip odd spaces?
u/magna

It has to be a deterministic PRNG so that the places that are skipped are persistent. Otherwise, it would just look like a random flipping of characters. I thought about it, but couldn't immediately find a short solution.
u/Polyducks

That's a great point. Dwitter is such a mind twister!
u/highfestiva

Groovy baby!
u/magna

#quine
u/joeytwiddle

#funny

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eruonna

function u(t) {

a=[0,-9,0,9,0]
if(!t){n=0;d=0;b=380;c=830;x.moveTo(a,b)}
d+=((n&-n)<<1)&n++?1:3;d%=4
b+=a[d];c-=a[d+1]
x.lineTo(b,c);x.stroke()

Apr 17 2017 10:36 PM UTC

}// 127/140

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Totally different dragon curve implementation with 13 fewer bytes and it correctly draws the first segment

u/eruonna

okay, not sure if it is worth kicking out yet another version to get the positioning right
u/eruonna

okay, not sure if it is worth kicking out yet another version to get the positioning right
u/donbright

color - - a=[0,-9,0,9,0] if(!t){n=0;d=0;b=380;c=830} d+=((n&-n)<<1)&n++?1:3;d%=4 b+=a[d];c-=a[d+1] x.fillStyle=R(128+n%256,64+n%128) x.fillRect(b,c,9,9)

dwitter.net | eruonna (1785)