Dweets awesomed by u/stiaje

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: #Opposites

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p01

function u(t) {

c.width|=0;for(n=200;n-=1/64;x.fillRect(n%3*666,n*5,h=8-k,h))for(r=C(t*3),i=S(t*4),k=28;--k/r;i=j)j=2*r*i+1-n/99,r=r*r-i*i+1-n%3

Feb 21 2017 9:42 PM UTC

}// 128/140

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u/donbright

wow!
u/iverjo

#fractal
u/galactustrombone

IS THAT THE MANDELBROT SET?
u/katkip

yep
u/joeytwiddle

#mandelbrot
u/DaSpider

Somehow this runs much faster in my codebase https://repl.it/@rogerio_neves/Dwitter-codeb…

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BriSeven

remix of d/564 by u/BriSeven

function u(t) {

if(!t)d=X=Y=a=255.88;for(i=d|0;--i;)x.fillStyle=R(S(a)*d,C(a+t)*d,S(-a)*d,.1),x.fillRect(X=9*S(a)+X&(d*8),Y=9*C(a)+Y&(d*4),8,8),a+=C(t*i*a)

Dec 30 2016 9:51 PM UTC

}// 139/140

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it looks like if you keep an accumulator variable in a feedback loop, you can get C to produce more random looking results. (except for at the very start.)

u/BriSeven

a+=C(t*i*a)
u/iverjo

Nice. Related dweet: https://www.dwitter.net/d/291

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New_Core

function u(t) {

w=c.width=1e3;b=P=>Math.pow(P,P);for(i=w;i--;)r=b(b(q=Math.abs(C(~~t%20*i/4)/2),1)+b(q,2),-1/1),x.fillRect(500+r*C(i)*50,250+r*S(i)*50,3,3);

Oct 1 2016 7:15 PM UTC

}// 140/140

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u/sigveseb

nice
u/iverjo

The sun!
u/iverjo

Btw, I'm looking forward to this: https://developer.mozilla.org/en-US/docs/Web…
u/iverjo

When browsers catch up, we can do a**b instead of Math.pow(a,b)
u/rep_movsd

FWIW double star exponentiation works on all current browsers I think

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New_Core

function u(t) {

x.fillStyle=R(b=2e3,b,b,0.1);x.fillRect(0,0,b,b);x.beginPath();for(i=b;i--;)x.lineTo(i/2*C(t)+i*S(g=t+i)+960,i/4*S(t)+i*C(g)+540);x.stroke()

Aug 21 2016 3:10 PM UTC

}// 140/140

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Show more comments…
u/iverjo

Dat tunl!
u/New_Core

maybe its a spinning chinese hat from top
u/iverjo

You're right, I can trick my brain into beliving that. Funky! It's like one of those illutions where you see different things based on how you look at it/think of it
u/iverjo

*believing
u/iverjo

Dwitter really needs an "edit comment" feature :P
u/lionleaf

Wow!!
u/giel

Nice!
u/lionleaf

#rotation #hat #in_or_out #lighting
u/joeytwiddle

#shiny
u/vain

Wow! Very nice!

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3bl3gamer

function u(t) {

c.width=256;for(i=9<<12;a=i&255,b=i>>8,m=a-128,n=b-72,i--;)l=m*m+n*n,(l<7e3?(((m/n+128+t*2)%2)^(b/n%2)):(l>8e3)^(n<0))&&x.fillRect(a,b,1,1)

Jul 20 2016 10:11 PM UTC

}// 139/140

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u/iverjo

Mindblowing O.O
u/sigveseb

so good!
u/sigveseb

I tried adding fog http://dweet.dwitter.net/id/280?autoplay=1
u/joeytwiddle

#perspective #raytrace #scene
u/lionleaf

d/280

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Virgill

function u(t) {

c.width=1920;for(i=0;i<9;i++){x.fillRect(400+i*100+S(t)*300,200+200*C(t),40,40)} // hello world

Jul 16 2016 9:34 PM UTC

}// 95/140

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u/lionleaf

Hello Virgill :)
u/Virgill

dwitter.. what a nice idea :-D
u/lionleaf

Thanks :D I'll keep building on it

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iverjo

remix of d/193 by u/lionleaf

function u(t) {

c.width=199;f=99;d=t%3;for(i=210;i--;)r=f*S(i*f)*(d-1),n=d<1&&4*S(t*i),x.fillRect(f+C(i)*r+n,f/2+S(i)*r,d,d)

Jun 25 2016 7:00 PM UTC

}// 108/140

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A remake of the intro of Stars and boxes https://github.com/iver56/abel-demo-14

u/iverjo

#explosion #fireworks

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chunnoo

remix of d/182 by u/chunnoo

function u(t) {

t++;x.beginPath();r=128*t;w=960;h=540;p=24*Math.PI*t+t;q=p/60/t;x.moveTo(r*C(p-q)+w,r*S(p-q)+h);x.lineTo(r*C(p)+w,r*S(p)+h);x.stroke()

Jun 8 2016 6:31 PM UTC

}// 134/140

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chunnoo

remix of d/180 by u/chunnoo

function u(t) {

x.beginPath();r=512;p=20*Math.PI*t;x.moveTo(r*C(p-1)+960,r*S(p-1)+540);x.lineTo(r*C(t)+960,r*S(t)+540);x.stroke();

Jun 8 2016 6:02 PM UTC

}// 114/140

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icecuber

function u(t) {

v=t-9;m=t%.8-.4;r=m*m*12+3.7;r^4?r=r+.3|0:0;r=t<5.6?r*50:v<1?72:v<5.6?r*20:v<7.3?-67/C(t):x;x.fillRect(960-S(v)*r,(v<1?300:645)-C(v)*r,9,23)

May 19 2016 11:56 PM UTC

}// 140/140

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Show more comments…
u/lionleaf

Crazy impressive!
u/iverjo

Wicked!
u/lionleaf

How did you do that?!
u/stiaje

Outrageous!
u/iverjo

This is still like black magic to me. It needs to be explained in a blog post or something.
u/lionleaf

+1 for a blog post!
u/ocasta181

bump!
u/iverjo

For the sake of context: This dweet draws the logo of Hackerspace NTNU https://hackerspace-ntnu.no/
u/lionleaf

#logo
u/Lazy1337

#witchcraft

dwitter.net | stiaje (10323)