Dweets awesomed by u/Tekmap

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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username

remix of d/1281 by u/iverjo

function u(t) {

 for(x.shadowBlur=i=128;i>42;i-=2,x.shadowColor=x.fillStyle=`hsl(${C(t)*i+t*i/9} 99%42%)`)x.fillRect(960+11*i*C(a=t*i/16),420+11*i*S(a),i,i)

Sep 22 2018 11:06 PM UTC

}// 140/140

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u/username

lap

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Xen

remix of d/9929 by u/anotherkitten

function u(t) {

with(x){t?fillStyle=`hsl(${t*99} 76%66%`:translate(950,540)
fillRect(9,9,9,9)
drawImage(c,-950,-550)
rotate(t)}

Sep 18 2018 10:52 PM UTC

}// 111/140

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u/DataMeta

on a scale of microrganism time lapse to 2001: a space odyssey this is a yes
u/donbright

@Xen what on earth have you created... omg
u/Xen

The universe is alive ;-)

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Noah

function u(t) {

[99,300,S(t*88)*99+200].map(r=>x.fillRect(850+S(t)*r+(f=~~t%3-1)*250,350+C(t)*r+Math.abs(f)*400,5,5))

Sep 18 2018 7:34 PM UTC

}// 101/140

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Not the same as previous, but went from 162 to 101, again huge thanks to u/yonatan

u/Noah

How to codegolf "101" course
u/username

#waitforit

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Quant1um

function u(t) {

eval(unescape(escape`瑼簨礽稽昽㐸㜬椽樽〩㭯㵓⡤㵺⵹⤬栽椪椪昪漫匨稩⼲Ᵽ⹷楤瑨簽愽㤶〬戽㤹ⱛ〬礫㵩⬽欽⡪⩪⩦⩯ⵓ⡹⤫株䌨搩⤯⠱⭯⩯⤯昬稫㵪ⴽ栯昫欪䌨搩崮浡瀨椽㹸⹬楮敔漨愫㵓⡩⤪㌰〬戫㵃⡩⤪㌰〩⤬砮獴牯步⠩㬻`.replace(/u(..)/g,"$1%")))

Sep 16 2018 3:17 PM UTC

}// 140/140

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Double pendulum simulation #physics

Show more comments…
u/BirdsTweetCodersDweet

t||(y=z=f=487,i=j=0,x.lineWidth=5,x.globalAlpha=.02);o=S(d=z-y),h=i*i*f*o+S(z)/2,a=960,b=99,[0,y+=i+=k=(j*j*f*o-S(y)+h*C(d))/(1+o*o)/f,z+=j-=h/f+k*C(d)].map(i=>x.lineTo(a+=S(i)*300,b+=C(i)*300)),x.stroke(); this is cool...
u/iverjo

Nice
u/Quant1um

Thanks!
u/donbright

holy crow
u/donbright

how does it work??
u/Quant1um

u/donbright, https://www.myphysicslab.com/pendulum/double…

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aemkei

remix of d/5423 by u/aemkei

function u(t) {

for(c.width|=i=h=999;i--;)x.fillRect(h+h*(2e5-(i-500)**2)**.5/h*S(t/2+i),i,w=S((i+t/2)/2)*19*(S(i**5)+S(t*2-i/9)),w)

Sep 13 2018 10:20 PM UTC

}// 116/140

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https://twitter.com/beesandbombs/status/1031…

u/f8f82804

#beesandbombs

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gho.xlrtx@gmail.com

function u(t) {

R=2.9+t/12
for(I=0,X=0.5;I<700;I++)X=R*X*(1-X)
for(I=0;I<100;I++){X=R*X*(1-X);x.fillRect(t*130,(1-X)*1000,2,2)}

Sep 13 2018 3:59 AM UTC

}// 112/140

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Bifurcation Diagram for the Logistic Map

u/donbright

lovely. classic.

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kotlomoy

function u(t) {

c.width=1920;for(i=0;i<50;i++){x.fillRect((3*i/15*S((t+i)%31)*50)%960+960,(3*i/15*C((t+i)%77)*50)%500+500,30,10)}

Sep 12 2018 8:13 PM UTC

}// 113/140

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Quant1um

function u(t) {

c.width|=1
x.lineWidth=3
r=420
u=1.5
t=t/2
for(b=-u;b<u;b+=u/r)
x.lineTo(C(30*b)*C(b)*C(t)*r+S(b)*S(t)*r+960,S(30*b)*C(b)*r+540)
x.stroke()

Sep 12 2018 6:02 PM UTC

}// 139/140

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Spiral on sphere surface

u/f8f82804

#sphere
u/f8f82804

similar to d/683

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f8f82804

remix of d/9793 by u/f8f82804

function u(t) {

eval(unescape(escape`睩瑨⡸⥸⹬㵴牡湳污瑥ⱬ⡨㵣⹨敩杨瑼㵸⹦㵦楬汒散琬栩ⱡ牣⠰ⱷ㴭㐰〬爽ㄸ〬〬㜩ⱳ瑲潫攨⤬昨堽爪匨琩ⱙ㵲⩃⡴⤫眬㌲ⰹ⤬牯瑡瑥⡡㴱ㄭ䵡瑨⹡瑡渨堯天⤬昨〬〬栬㤩ⱬ⡷⽓⡡⤬〩Ⱳ潴慴攨ⵡ⤬昨眬〬栬㤩`.replace(/u(..)/g,"$1%")))

Sep 12 2018 4:53 PM UTC

}// 140/140

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Shaper #mechanism. Moves faster on the rightward stroke. #compressed

u/f8f82804

https://en.wikipedia.org/wiki/Shaper

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yonatan

function u(t) {

t?T=f=>130+f(i)*i%9+f(i*i)*i**.4*t:c.width=568
for(i=5e3;t<4&&i--;x.fillRect(T(S),T(C)+t*t*2,1/t,1))x.fillStyle=`hsl(98 60%${t*13-T(C)/8}%`

Sep 11 2018 11:12 PM UTC

}// 139/140

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Marimo - a remake of tail_y's http://wa.zozuar.org/code.php?c=md93

u/yonatan

#organic #grass #waitforit
u/donbright

incredible
u/joeytwiddle

Hairy! Set c.width=250 to zoom in
u/kipkat

Looks like a #fireworks for me

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