Dweets awesomed by u/pythech

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: #ScaryMovies

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DataMeta

remix of d/8474 by u/DataMeta

function u(t) {

c.width|=0;p=Math.PI;for(i=18;i--;)x.lineWidth=7,x.rotate(p*2),x.arc(960,540,(Math.abs(512*S(t*i/16))),t/i,i*t/p),x.stroke()

Jul 3 2018 5:18 AM UTC

}// 124/140

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t/i -> i for more uniform geometry

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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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micahcowan

remix of d/8786 by u/alien

function u(t) {

c.width|=t?1:u=s=0
s-=s<=0?s:2e-4
a=9
b=a*9
onclick=e=>s+=.05
x.setTransform(-(m=9*S(u+=s)),n=9*C(u),n,m,a*b,b*5)
x.fillRect(-a/2,-b/2,a,b)

Jul 1 2018 5:22 AM UTC

}// 139/140

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Added friction to u/alien's original. #fidgetSpinner

u/alien

:D !!!! oh wow!!!!! that's so cool.

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alien

function u(t) {

t?1:s=0
c.width|=a=9
b=a*9
onclick=e=>s+=5
l=s*t+1.57 
n=C(l);m=S(l)
x.setTransform(9*n,9*m,-m*9,n*9,a*b,b*5)
x.fillRect(-a/2,-b/2,a,b)

Jun 30 2018 10:09 PM UTC

}// 135/140

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Just click on the stick

u/micahcowan

#fidgetSpinner
u/micahcowan

I added friction :) d/8787
u/aleamb

#interactive

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pythech

remix of d/8774 by u/Feiro

function u(t) {

with(x)for(fillRect(0,0,k=2e3,k);k--;beginPath(fillStyle="#0001"))arc(960,540,k/4,v=k%4*2*S(t-k)*C(t-k*9)+t,v+.2),strokeStyle="red",stroke()

Jun 30 2018 10:49 AM UTC

}// 140/140

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u/magna

Stylish! #radar

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micahcowan

remix of d/8742 by u/micahcowan

function u(t) {

with(x)for(c.width|=i=n=23;--i;)F=((f,m)=>Math.abs(m-t*f(i*1.5/n)*2e3%(2*m))),beginPath(),arc(F(C,1920),F(S,1e3),30,0,7),fill()

Jun 30 2018 5:50 AM UTC

}// 127/140

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Many more #ball s! n=100 makes a neat pattern

u/joeytwiddle

Nice work! #bounce

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colinpt

remix of d/8774 by u/Feiro

function u(t) {

with(x)for(fillRect(0,0,k=2e3,k);k--;beginPath(fillStyle="#1001"))arc(920,540,k/1,v=k%1*9+S(t*9999-k/3)+t,v+.1),strokeStyle="white",stroke()

Jun 30 2018 3:59 AM UTC

}// 140/140

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u/magna

Wow!

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Feiro

remix of d/8739 by u/firegodjr

function u(t) {

with(x)for(fillRect(0,0,k=2e3,k);k--;beginPath(fillStyle="#0001"))arc(960,540,k/4,v=k%4*1.57+S(t*3-k/280)+t,v+.2),strokeStyle="red",stroke()

Jun 28 2018 11:07 AM UTC

}// 140/140

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red is shorter than any other color! :D

u/firegodjr

Looks like a rose :D
u/Agnes

For the record, strokeStyle="tan" is as short as red.
u/magna

R(k) also seems to work
u/zanella

You can replace 1.57 with 1.6, and use this extra byte to use hex colors instead of red, like #0f0. ;)
u/zanella

Or, if you want to keep it really precise, replace *1.57 with /.64.

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DataMeta

remix of d/8735 by u/DataMeta

function u(t) {

for(i=60;i--;)o=i*4.4,x.lineWidth=i,x.fillStyle=R(o-16,o+16,o+32,),x.beginPath(),x.arc(960+t*S(T(i))*i,540+C(T(i))*i,256-t*t,0,7),x.fill()

Jun 28 2018 4:01 AM UTC

}// 138/140

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Gemstone

u/firegodjr

Ooo, nice
u/magna

#waitforit
u/sigveseb

Niiice!

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yokljo

function u(t) {

c.width|=0
x.font="900px A"
x.fillText("🏢",g=700,g)
x.font="90px A"
for(i=0;i<9;i++)n=(t+i)*90%350,x.fillText("🚹",g+n/2+i*17,1160-n)

Jun 27 2018 12:55 PM UTC

}// 132/140

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u/micahcowan

Damn! Worked on Chrome on my Android, but not Chrome on my Mac (weird). The building isn't visible. #emoji
u/joeytwiddle

256px is the highest you can go on Mac Chrome, 324px on Mac Firefox. To work around, scale down the canvas.
u/BirdsTweetCodersDweet

Works fine on Chrome on Linux

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