Dweets awesomed by u/bschwb

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: #Opposites

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E-Mouse

remix of d/3194 by u/lurifax

function u(t) {

for(i=2e3;i--;x.fillStyle=R(C(t)*128+128,0,C(i)*128+128,.07))x.fillRect(960+T(p=i/314)*(d=250+S(p*3+t)*(S(t)*99)*C(t)*4),540+C(p)*d,9,9)

May 28 2018 5:54 PM UTC

}// 136/140

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hope4tg

remix of d/8217 by u/johnbruin

function u(t) {

c.width=-1
x.translate(150,85)
for(j=10;j--;){
x.rotate(t)
for(i=20;i--;)x.rotate(0.1*C(i+j)),x.fillText("----",0,j*C(S(t))*10)}

May 26 2018 6:36 PM UTC

}// 128/140

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u/rhys5584

is this loss

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prplz

remix of d/8154 by u/Xen

function u(t) {

r=Math.random
for(i=666;i--;x[S(((22-y)**2+(13-z)**2)**.35+t)**2>.8?'clearRect':'strokeRect'](y*T,z*T,T=44,T))y=r()*T,z=r()*T

May 26 2018 12:52 PM UTC

}// 125/140

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Thanks Xen for the strokerect, it makes really cool textures

u/firegodjr

Looks like pencil crosshatching!

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anthonylewis

function u(t) {

c.width^=0;x.translate(960,0);x.rotate(0.7854)
for(i=8;i--;)for(j=8;j--;)
x.fillStyle=R(0,0,0,S(i*j*t)),x.fillRect(i*100,j*100,50,50)

Apr 9 2018 10:31 PM UTC

}// 135/140

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anthonylewis

function u(t) {

c.width^=0
for(i=21;i--;){
y=S(i*t)+1;z=C(i*t)+1
x.fillRect(0,i*50,900-y*100,48)
x.fillRect(1000+z*100,i*50,900-z*100,48)
}

Apr 8 2018 10:19 PM UTC

}// 124/140

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joeytwiddle

remix of d/7597 by u/joeytwiddle

function u(t) {

for(c.width|=i=192;i--;x.fillRect(940+n*9*S(a=i%6*1.04+S(p)/5+t),520+n*9*C(a),n,n))n=((j=i/6)%16)**2/5,x.globalAlpha=.5+C(p=j*.6+t*6)/2

Apr 7 2018 6:14 PM UTC

}// 135/140

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Spiral starfish. Change +t to -t and watch its feet

u/joeytwiddle

Dropped a for thanks to u/New_Core

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joeytwiddle

remix of d/7596 by u/BalintCsala

function u(t) {

for(c.width|=i=8;i--;)for(j=32;j--;x.font=(n/6*(1+C(p=j*.6+t*9))|0)+'px A',x.fillText('⚫',960+n*2*S(a=.8*i+S(p)/7),540+n*2*C(a)))n=(j%16)**2

Apr 6 2018 10:29 AM UTC

}// 140/140

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Spiral flower, inspired by https://t.co/7SVu2vSUZQ

Show more comments…
u/joeytwiddle

A group effort by u/Agnes, u/BalintCsala and u/joeytwiddle
u/joeytwiddle

Colour version (200 chars): https://codegolf.tk/a/266
u/New_Core

reduced it to 138 looking exactly the same.. with only 1 for loop ;)
u/artfarnaa

Hi Joey. Beesandbombs is cool. I tool a look at his animations and the code that generates them at github. Very cool. Still his stuff would be require many hours to reverse engineer. Your effort to move one his animations here is nice work. Thanks for bringing him to my attention.
u/joeytwiddle

I sometimes post his tweets in the Discord channel, as inspiration for dwitterers with dweeter's block. Agnes posted a prototype and we hacked away at it. :D Let's keep sharing the fun ones!
u/joeytwiddle

Precedent arm: d/5796
u/f8f82804

#spiral-in-spiral
u/f8f82804

#beesandbombs

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jylikangas

function u(t) {

c.width=300+S(t/2)*99
with(x)for(i=17;--i;fill())globalAlpha=.2,arc(X=99+i*S(t/3)*3,70,450/(Z=i-t*6%1),2.7,6.7)&rect(X-(z=150/Z),70+z,z*2,7)

Mar 31 2018 10:18 AM UTC

}// 140/140

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Tribute to Strange Crystals

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u/iverjo

Very good tunnel!
u/p01

✨ You can save 3 bytes by replacing 2.7 and 6.7 by 9 and 13
u/jylikangas

Thanks! Improved version: c.width=W=350+C(t)*150 with(x)for(i=17;--i;fill())globalAlpha=.2,arc(X=W/2+i*S(t/3)*4,70,450/(Z=i-t*8%1),9,13)&rect(X-(z=150/Z),70+z,z*2,7)
u/iverjo

#tunnel
u/sigveseb

#witchcraft
u/pavel

Even better with(x)for(c.width=W=350+C(t)*150,i=17;--i;fill(rect(X-z,70+z,z*2,7)))globalAlpha=.2,z=150/(i-t*8%1),arc(X=W/2+i*S(t/3)*4,70,3*z,9,13)
u/vain

This psydo 3D programming is just too high for me! My biggest respect! ! ++++

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joeytwiddle

remix of d/2474 by u/joeytwiddle

function u(t) {

c.width|=i=30;with(x)for(lineWidth=45;i--;r%4&&stroke())beginPath(r=2+i%10),arc(940,540,r*44,s=i+4*S(t/3+i),s+(4+i*3)%6)

Mar 31 2018 6:20 AM UTC

}// 120/140

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Revision Logo (golfed)

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u/joeytwiddle

Info: http://revision-party.net Live: https://www.twitch.tv/revisionparty Videos: https://www.youtube.com/user/RevisionParty
u/sigveseb

You at revision joeytwiddle?
u/joeytwiddle

Sadly not. Still on the wrong continent. My crew too. But I'm tuned in.
u/lionleaf

Too bad :( I actually flew in from a different continent; you need a stronger excuse!
u/joeytwiddle

Hehe well I'm also trying to save the oil. Although I'm realising it's useless :(
u/joeytwiddle

Downloads: http://www.pouet.net/party.php?which=1550&am…
u/iverjo

#revision
u/joeytwiddle

#logo
u/Coalshork

i cant not see the earthbound boss background lol

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jylikangas

function u(t) {

A=r=>x.fill(x.arc(960+R*C(t),540+R*S(t),r,0,7))
f%2&&(t+=3)
x.beginPath(A(R=180))
x.fillStyle='#'+(f++%2?999:111)
A(45)}{f=0

Mar 26 2018 5:01 AM UTC

}// 124/140

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Animated Yin Yang

u/jylikangas

t+=f%2*3 to save 3 more bytes
u/jylikangas

R=180+f%2*3 to add an outline
u/joeytwiddle

#yinyang

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