Dweets awesomed by u/baon

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: #Food

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crimbles

function u(t) {

t||x.translate(980,540)
for(var i=0;i<1500;i++){
x.fillStyle=R(C(t/i)*i,S(i/t)*i,T(t)*i)
x.fillRect(i,t,S(t)*2,C(t)*i);x.rotate(S(T(i/t)))}

Jan 2 2018 8:12 AM UTC

}// 139/140

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The longer you watch, the weirder it gets

u/sigveseb

Rocks
u/iverjo

Novel!

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logomach

function u(t) {

c.width=2e3;for(i=50;i--;){d=t+i-1.57;x.fillStyle=R(S(d)*255,S(d)*100,80),x.fillRect(960+S(t+i)*500,200+S(t%i*.5)*200+i*5,10,10*i)}

Jan 1 2018 10:28 PM UTC

}// 131/140

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Pjaerr

function u(t) {

c.style.background=R();x.fillStyle=R(...[S,C,T].map(_=>127*(_(t)+1)));a=137.5*frame;r=8*frame**.5;x.fillRect(r*C(a)+960,r*S(a)+540,8,8)

Dec 30 2017 7:50 PM UTC

}// 135/140

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A little bit of Phyllotaxis. http://algorithmicbotany.org/papers/abop/abo…

Show more comments…
u/Pjaerr

btw, changing the angle a from 137.5 to 137.3 or 137.6 produce different, albeit nice, patterns.
u/Bendoman

Second best thing on here by far.
u/dubistdu

WOW
u/trupples

Also.. shouldn't it be 137.5 * pi / 180 ~~ 2.39982772149 as the trigonometric functions take in radians?
u/trupples

137.5 also kind of "isolates" the spirals after a short while while 2.4 does not
u/Pjaerr

Yeah, that'll be it actually. I still thought it looked decent!
u/DiamondDrake

I was just working on a Phyllotaxis dweet, though i was trying to use ellipse that just needs way too many characters
u/@no_identd

Although the point about radians is fully correct, I'd like to point out that the most accurate IEEE single float approximation of this angle in degrees is 137.50777 (which internally becomes 137.5077667236328125)
u/lionleaf

#spiral #flower #plant #botany
u/fujimotos

This is amazingly beautiful.

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retera

function u(t) {

c.width|=0;
for(r=0;r++<10;){s=480+C(r)*r*5;for(q=0;q++<8;){for(j=0;j++<9;){a=q+t;x.fillRect(C(a)*s*S(j+t)+960,S(a)*s*C(j-t)+540,8,8)}}}

Dec 28 2017 8:00 AM UTC

}// 136/140

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Xen

remix of d/4188 by u/xem

function u(t) {

t?k=c.width=95:d=0;for(e=[i=5e3];i--;x.fillRect(i%k,i/k,1,e[i]=(n-1|d[i])==3|i%9&!d))for(j of[n=1,94,k,96])n+=d[i+j]+d[i-j];d=e

Dec 27 2017 11:04 PM UTC

}// 127/140

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follow the remix for info ^^

u/JoshiRaez

Omg, tje game of life. Cool :D
u/xem

Nice, my version just tried to be as precise as possible with more characters
u/eviltoad

Beatiful!
u/katkip

#gameoflife

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nystrand

function u(t) {

for(i=c.width|=g=(o,a=n=7,b=8,z)=>--n?g(n>5?i*n:t/n,b*C(o)-a*S(o),z,a*C(o)+b*S(o)):x.lineTo(a*(z+=40)+960,b*z+540);i--;g(i&t/2));x.stroke()

Dec 27 2017 12:24 PM UTC

}// 139/140

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u/jaemiejaemie

reminds me of older windows screensavers, really nice!
u/iverjo

How was this made?

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jczimm

remix of d/2106 by u/jczimm

function u(t) {

g=(a,b)=>x.fillRect(a,b,d,d)
c.onmouseup=e=>g((e.clientX*(f=0.0282)|0)/16*1920,(e.clientY*f|0)/8*960)
x.fillStyle=R((d=128)*(S(t)+1),d,0)

Nov 22 2017 4:16 AM UTC

}// 137/140

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nystrand

function u(t) {

with(x)for(q=t?5e3:translate(1e3,b=540),i=b*t%q;i>0;fillRect(c=i/5-q/2,c,T(t&i/t^b)*b+q,q),q=.2)fillStyle=R(a=i--/9-q,rotate(b*t&i),a+b,.1)

May 25 2017 10:00 PM UTC

}// 139/140

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u/magna

Super cool!
u/lionleaf

Amazing!
u/MrM@_S

disco

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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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aemkei

remix of d/2238 by u/aemkei

function u(t) {

r=500;c.width^=0;for(I=F=2;F>-2;F-=1/2e3)x.fillRect(C(F)*S(L=F*r-t)*r+999,S(F)*r+520,W=(20&((S(I+=.25032)*50)*C(.1+I/1000)*.7))*C(L/2),W)

Mar 21 2017 10:36 PM UTC

}// 137/140

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the world …

u/sfz

you are a god.min.js
u/sigveseb

well done!
u/iverjo

#sphere #earth #globe
u/vain

What?? top ++++

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