Dweets awesomed by u/donbright

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: #Food

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katkip

function u(t) {

for(c.width=i=800;i--;x.fillStyle=`hsl(${i+t*50},99%,50%`)x.fillRect(S(i/99+t/1)+1/(z=i/200)-(w=z*400)/2,(99+S(i/50-t)*60)/z+200,w,t/z);

Jul 30 2018 10:34 AM UTC

}// 136/140

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The magic carpet

u/d0n.key

That's a pretty gay carpet you got there. ( I like it though :D )
u/katkip

XD
u/lionleaf

#rainbow #carpet
u/username

#best dweet for me definitely
u/username

#music

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Agnes

remix of d/8945 by u/firegodjr

function u(t) {

F=n=>{return C(n)*C(n)+S(n)*S(n)<1}
x.drawImage(c,0,l=10)
for(j=214;j--;)x.fillStyle=F(j^t*60)?"#0f0":"#000",x.fillRect(j*l,0,l,l)

Jul 28 2018 8:15 PM UTC

}// 130/140

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Visualising numbers for which sin(x)*sin(x) + cos(x)*cos(x) < 1.

u/donbright

wait wait wait wait wait.... sin^2 + cos^2 = 1. im so confused. is this about the imprecision of floating point arithmetic?
u/donbright

this is absolutely fascinating... set it ==1 or >1 gives different patterns.
u/donbright

also fun... return S(n)/C(n)==T(n)

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Agnes

function u(t) {

A=t?A.filter(e=>((N=t-e.i)<5)|x.beginPath(x.fillStyle=R(T=51*N))|x.arc(e.x,e.y,T,0,7)|x.fill()):[];A.push({x:(M=t+t**t)%1920,y:M%1080,i:t})

Jul 16 2018 3:00 PM UTC

}// 139/140

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u/DataMeta

Verrrrry cool!

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jylikangas

function u(t) {

c.width|=P=(i,j,a,d)=>d&&x.stroke(new Path2D('M'+[i,j,i+=S(a)*99,j+=C(a)*99]))&P(i,j,a+C(d/2+t)/3,d-1)&P(i,j,a-C(t/2)/3,d-1);P(960,999,66,9)

Jul 1 2018 10:50 AM UTC

}// 140/140

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Fractal in the wind

u/micahcowan

Beautiful!
u/aleamb

#fractal #path2d
u/fujimotos

Looks like silver grass.

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Agnes

function u(t) {

with(x)for(scale(s=t?1:100,s),fillRect(0,0,Q=255,Q),i=9;i--;fillStyle=R(Q*=!!i,Q,Q,.02))fillRect(4+i+S(t)*3,4-T(T=Math.random),.5,2*(1+T()))

Jun 27 2018 8:40 AM UTC

}// 140/140

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Wonky spooky default

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jylikangas

function u(t) {

c.width=900
for(j=9;j--;x.beginPath())for(a=T(t/j),i=16;i--;x.stroke())x.lineTo(200+j*60+S(t)*99+S(a+=(7-i)%2*11)*25,240+(i%4>>1)*99+C(a)*9)

Jun 24 2018 9:58 AM UTC

}// 140/140

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Wireframe #default

Show more comments…
u/aleamb

greeeeat!
u/magna

YAY!
u/joeytwiddle

Brilliant
u/donbright

my gosh....
u/vain

great work / code !
u/joeytwiddle

That's not a #cube, it's eight cuboids!

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jylikangas

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(u=29;u--;)for(v=65;v--;x.clearRect(960+(150+99*C(v))*C(U)*z,540+75*S(v)*z,z,z))z=60/(9+C(v)/T(t/2))*S(U=u/9+t/9)

Jun 23 2018 8:08 AM UTC

}// 140/140

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Pulsating Torus

u/lionleaf

#torus
u/DataMeta

Marvelous!
u/iverjo

Well done!
u/Galaxtone

TypeError: u is not a function

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lionleaf

remix of d/8639 by u/pythech

function u(t) {

c.width|=0
with(x)for(translate(900,500),i=9*t;i-->0;fill())fillStyle='hsl('+9*i+',99%,50%)',fillRect(5*i,0,a=40*S(i*.9)+60,a),rotate(-3.88)

Jun 19 2018 1:07 AM UTC

}// 140/140

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#confetti remix! Had to go to squares to squeeze color in, but should be possible to golf back to circles

u/BalintCsala

You don't have to close the hsl function
u/redactedhoptional

You can use a template string in the color string, so hsl(${9*i},99%,50%, it saves 1 character. You could also make it translate(960,540) so it is correctly centered.
u/redactedhoptional

Also also, you can remove fill(), and round the -3.88 to -3.9 to save a character.

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jylikangas

function u(t) {

for(c.width=z=-4;z++;x.fill(new Path2D("M"+[i=d>30?d-30:1,j=i-1?30:d,i,-j,d,-d,d,d])))d=35/(2-t--%2),x.setTransform(z%3?-1:1,0,0,1,150,75)

Jun 14 2018 7:29 AM UTC

}// 138/140

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Endless double doors...

u/pythech

#path2d
u/zanella

*insert music theme for Get Smart here*
u/zanella

*insert music theme for Get Smart here*
u/zanella

(insert music theme for Get Smart here)
u/zanella

Sorry about the multiple comments, it wasn't posting when I clicked the button. :)

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loni_art

function u(t) {

t?(d=X+.1*(Y-X),e=Y+.01*(X*(28-Z)-Y),Z+=.01*(X*Y-8/3*Z),X=d,Y=e,x.fillRect(Z*20+o,X*20+o,9,9)):(X=.2,Y=Z=2,d=e=o=550,x.globalAlpha=.2)

Jun 4 2018 6:35 PM UTC

}// 134/140

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Lorentz

Show more comments…
u/loni_art

#chaos
u/loni_art

to have fun: modify the x,y,z variables
u/DataMeta

Amazing... It's like pseudo orbital mechanics! This inspired me to finally try something in "3D"
u/zanella

Been wanting to do a Lorentz system ever since I first saw Dwitter. Congrats! :)
u/BirdsTweetCodersDweet

#Lorenz #Attractor #lorenz #attractor #lorenzattractor
u/Mannaggia

<3

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