Dweets awesomed by u/trupples

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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andrewmd5

function u(t) {

t||(bt=350,bn=65)
t=t*30
c.width=1920;for(i=0;i<bn;i++){x.fillRect(30*i,200+bt/2*(S(t*(i/200.0+0.08))), 25, 35)}
t++

Feb 22 2017 2:31 AM UTC

}// 116/140

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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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mxfh

function u(t) {

c.width=w=1920;π=Math.PI/2;λ=0;r=w/4;for(φ=-π;φ<π;φ+=1/r){λ+=.1;x.lineTo(C(φ)*S(λ-t)*r+w/2,(C(t)*S(φ)-S(t)*C(φ)*C(λ-t))*r+r)}x.stroke()

Feb 20 2017 11:57 AM UTC

}// 135/140

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simple orthographic projection; try some factors on the lat λ and lon φ offsets t

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u/mxfh

simple orthographic projection; try some factors on the lat λ and lon φ offsets t
u/wicktwo

Niiiice!
u/as

i love this one
u/ssg

nice variable names!
u/donbright

so elegant
u/lionleaf

#sphere
u/lionleaf

#d3 . (3d is currently not a valid hashtag)
u/BirdsTweetCodersDweet

#whichwayround #inorout

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xem

remix of d/645 by u/xem

function u(t) {

for(i=j=0;i<
118;j+={0:17,3:11,11:11,55:54,87:54,69:-68,101:-68}[i++]|1)x.fillStyle=R(i,i+99,i*3,1),x.fillRect(j%18*99,~~(j/18)*99,90,90)

Feb 17 2017 10:36 PM UTC

}// 137/140

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u/lionleaf

Awesome periodic table!
u/iverjo

wow, impressive!
u/xem

thanks! More info on http://codegolf.github.io/period1k/
u/KilledByAPixel

Nice! #periodic #periodictable

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lionleaf

remix of d/616 by u/lionleaf

function u(t) {

c.width=2e3;x.translate(970,400);for(i=25;i--;)x.fillStyle='hsl('+i*9+',50%,50%)',x.transform(-S(t*2),T(t),S(t),1,0,0),x.fillRect(i,i,i,i*9)

Jan 14 2017 4:50 PM UTC

}// 140/140

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iverjo

function u(t) {

c.width=1920;x.beginPath();x.beginPath();x.arc(960,500,199,t*4+2*C(t),t*4+3.2+2*S(t));x.lineWidth=40;x.strokeStyle='#5592FB';x.stroke();

Jan 14 2017 4:48 PM UTC

}// 136/140

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Android-style loading spinner

u/iverjo

119 characters: c.width^=0;x.beginPath();x.arc(960,500,199,t*4+2*C(t),t*4+3.2+2*S(t));x.lineWidth=40;x.strokeStyle='#5592FB';x.stroke()
u/iverjo

#loading #spinner

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lionleaf

remix of d/45 by u/lionleaf

function u(t) {

c.width=2e3;x.translate(970,400);for(i=0;i++<30;)x.fillStyle='hsl('+i*9+',50%,50%)',x.transform(-1,C(t+1),S(t),-1,0,0),x.fillRect(i,i,99,99)

Jan 14 2017 4:42 PM UTC

}// 140/140

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Fruit ninja #dweetoff

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iverjo

remix of d/596 by u/iverjo

function u(t) {

c.width=1920;for(i=-2;i<2;i+=.05)for(j=-4;j<4;j+=.05)a=j-3*S(t),1/(j*j+i*i)+1/(a**4+i**4)>1&&x.fillRect(j*240+960,i*240+540,12,12)

Jan 14 2017 3:46 PM UTC

}// 130/140

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This may not work in FireFox at the time of writing, because of the new ** operator (exponential). Works in Chrome though :)

u/donbright

yup, blank in firefox
u/Polyducks

This is so gorgeous. Well done
u/iverjo

#metaballs

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iverjo

remix of d/143 by u/chunnoo

function u(t) {

c.width=1920;for(i=-2;i<2;i+=.05)for(j=-4;j<4;j+=.05)a=i*j-3*T(t),1/(j*j+i*i)+1/(a*a+i*i)>1&&x.fillRect(j*240+960,i*240+540,12,12)

Jan 14 2017 3:44 PM UTC

}// 130/140

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Let the dweetoff begin!

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BriSeven

remix of d/291 by u/iverjo

function u(t) {

t=t%4;if(t<.1)r=X=Y=0,W=c.width=960,H=540;for(i=W*4;i--;)x.fillRect(X=(X+S(r+=C(t*i*r))%W+W)%W,Y=(Y+C(r)%H+H)%H,A=5/(1+t*9),A)

Jan 1 2017 12:01 AM UTC

}// 126/140

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u/donbright

the gray scale is what makes this awesome

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