Dweets awesomed by u/Quant1um

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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Feiro

function u(t) {

for(a=6.28,w=960,h=540,c.width|=0;a>0;a-=.02){
	x.moveTo(w+h*C(a),h+h*S(a));
	x.lineTo(w+h*C(a*t),h+h*S(a*t))
}x.stroke();

Feb 14 2018 1:23 PM UTC

}// 122/140

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It began as a quick experiment to generate the Cardioid, bacause of today. Swap 't' for 2 to see it. Happy valentine's day!

u/Feiro

To clarify: Cardioid comes from 'heart' in Greek.
u/aleamb

cool!
u/fons

it is like venus pattern :D
u/Yogeshp3

was my very first dweet :) https://www.dwitter.net/d/5238

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akm

function u(t) {

c.width|=0;for(i=500;i--;)
x.lineWidth=.7,x.stroke(new Path2D(`M${C(t*i/10)*i+960} ${S(t*i/10)*i+150}l400 400l-400 400l-400-400l400 -400`))

Feb 13 2018 10:16 PM UTC

}// 139/140

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u/Xen

nice

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Agnes

function u(t) {

w=c.width+=e=0;for(m=100;e<m;d=e++/m,s=30+20*C(t*d),x.fillStyle=R(m*(1+S(a=d*S(t*d)))),x.fillRect(0,0,s,s),x.translate(s,s),x.rotate(a));

Feb 8 2018 8:39 AM UTC

}// 137/140

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u/donbright

:)
u/katkip

Woooooow

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AnnanFay

function u(t) {

(async I=>eval(T.L==I?T[I]:(T.L=I,T[I]=((await(await fetch(0|Math.random()*I*100)).text()).match(/u\(t.*([^]*?) }/)||(T.L=T))[1])))(1+t/9|0)

Feb 4 2018 2:30 PM UTC

}// 140/140

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Dweet slideshow. Shows a new random dweet every 9 seconds starting at older dweets. Some dweets will break it since all changes are in global scope.

Show more comments…
u/garettridge

This is the best one because it shows them all!! I'm trying to figure out a way to extract which dweet number is playing at a given time (maybe using the debugger?)
u/AnnanFay

Thanks :) Developer Tools -> Network tab will display the requests. The latest request will be the one playing.
u/AnnanFay

There's a 150 byte version which displays IDs as error messages. (async I=>eval(T.L==I?T[I]:(T.L=I,T[I]=((await(await fetch(V=0|Math.random()*I*100)).text()).match(/u\(t.*([^]*?) }/)||(T.L=T))[1])))(1+t/9|0) throw V
u/garettridge

Brilliant! The network tab!
u/zanella

Every time I scroll through this dweet, I think "Funny, don't remember giving an awesome for this dweet". :D
u/AnnanFay

A new version is available with some improvements d/7263

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Jezza

function u(t) {

if(!t)q=[];c.onmousemove=e=>q.unshift(e);c.width=window.innerWidth;for(i=0;i<50;i++)q[i]?x.fillRect(q[i].x+S(z=i+t*9)*5,q[i].y+C(z)*5,2,2):0

Jan 30 2018 3:15 AM UTC

}// 140/140

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Have a mouse around.

u/lionleaf

That's a fun one!
u/CtrlAltCuteness

Works on a Samsung Galaxy Note 4 with device's stylus and a web browser supporting the mouseover stuff.
u/joeytwiddle

#interactive

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yonatan

function u(t) {

c.width|=0
a=(s,A,g,h)=>s<4?[]:[g=s*S(A),h=s*C(A)].concat(a(s*.9,A+t),a(s*.4,A-t),-g,-h)
x.stroke(new Path2D('M960 99l'+a(199,0).join(' ')))

Jan 26 2018 5:44 AM UTC

}// 140/140

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u/zanella

Great!! Love fractals!! Also, I was hoping to see more dweets using Path2D, I think there's lots os great possibilities in there.
u/sigveseb

Very nice! And shh, Path2D is the hidden secret of the canvas api :D
u/sigveseb

But yeah, can't wait to see more Path2D dweets :)
u/iverjo

#fractal #recursive
u/f8f82804

#path2d
u/vain

just wonderful !

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justguy

function u(t) {

c.width=w=1000;π=Math.PI/2;λ=0;r=w/4;for(i=-π;i<π;i+=1/r){λ+=.1;x.lineTo(C(i)*S(λ*t)*r+w/2,(C(t)*S(i)-S(t)*C(i)*C(λ*t))*r+r)}x.stroke()

Jan 26 2018 5:32 AM UTC

}// 135/140

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u/aleamb

Pretty dweet!
u/Xen

love it!

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yonatan

remix of d/6408 by u/yonatan

function u(t) {

t?x.d=x.drawImage:c.width=w=256
x.d(c,-2,1,260,2e3)
for(i=0;i++<w;x.fillRect(i,0,1,1))x.fillStyle=R(r=150+t*i**4%w,r,w)
x.d(c,-9,31,374,700)

Jan 25 2018 2:08 AM UTC

}// 140/140

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u/magna

Nice!
u/joeytwiddle

JSConf Asia approves!
u/yonatan

#water #waterfall
u/sigveseb

Pretty sweet

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ipost

function u(t) {

c.width^=0;f=.01;for(i=628;i--;x.stroke())x.beginPath(),x.arc(960+860*S(t+i*f),540+440*C(t+i*f),60+45*S(20*S(t)*S(i*f)),0,6.28)

Jan 22 2018 10:38 PM UTC

}// 128/140

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u/aleamb

Wow!
u/Xen

very smooth
u/DirtyDan

Smart, using f to multiply i to gradually count up to 2 pi

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yonatan

remix of d/6319 by u/veubeke

function u(t) {

for(a=_=140;--a;x.fill()){x.beginPath(x.fillStyle=R($=_*S(a+t),$+_))
for(i=3;i--;)x.lineTo(960+C(z=t+i+a)*a*9,540+S(z)*a*9)}

Jan 22 2018 1:44 PM UTC

}// 125/140

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u/Xen

nice style
u/zanella

Cool texture!
u/zanella

Cool texture!
u/zanella

Cool texture!
u/Xen

done remix d/6333
u/sigveseb

wooow stylish af!

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