Dweets awesomed by u/Chafik.Design

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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tomxor

function u(t) {

x.fillRect(0,0,i=2e3,i)
for(t+=160;p=i&1,m=t/C(t/i)+p*(t/2+i%t),i--;)x.clearRect(
960+m*S(n=t/9+i*i)*C(!p*i/t),
540+m*C(n+p*2),s=3-C(n)*3,s)

Oct 17 2018 8:45 PM UTC

}// 140/140

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#space #planet #saturn

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u/joeytwiddle

Wow, beautiful! I am blown away. #dots #lighting #shading
u/lionleaf

Wow! That's amazing
u/magna

WOW!
u/sigveseb

no way!
u/yonatan

beautiful!
u/jellyedwards

That's incredible, well done!
u/jellyedwards

If you change this bit too use t it's like Saturn uses its ring as a hula hoop: 540+m*C(n+p*t)
u/katkip

woow... gj bro
u/keithclark

Nice!!!
u/aleamb

wow! superb!
u/iverjo

That's pretty rad
u/rnbw

my mind is officially boggled o_o
u/Purpzie

This is absolutely beautiful.
u/tomxor

Thanks for all the kind comments :) for those interested: the key is in the parity bit p=i&1 this allowed me to combine two different but similar functions by multiplying parts in an out on each iteration. You should be able to pull the two apart into something more intelligible.
u/magna

@tomxor are you on Twitter as @tomxor by any chance?
u/tomxor

I am not, nor am I on any other social network... unless you consider Github one :P but a different pseudonym..
u/jylikangas

Beautiful dweet!
u/aleamb

The Cosmos is all that is, or ever was, or ever will be. The contemplation of the this Cosmos stir us.
u/Renaud___

so Beautiful
u/ivylab

This is absolute badass
u/vain

OMG! This part blew me away!
u/jdspugh

Well done!

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ETHproductions

function u(t) {

for(i=8192,c.width=128,r=R,R=n=>~-r[i+n]-~r[i-n];i--;(R[i]=p+new Date%9/t/9>=3-r[i]&p<4)&&x.fillRect(i>>6,i%64,1,1))p=R(1)+R(63)+R(64)+R(65)

Sep 25 2018 6:06 PM UTC

}// 140/140

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Conway's Game of Life in 140b

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u/ETHproductions

Takes a second to get going due to the limitations on how I could kick it off. The 184b version looks much better; I may post it when I'm satisfied with it.
u/aemkei

Nice! #gameoflife
u/and3k5

How do you twist your brain to do this thinking? It's amazing!
u/katkip

That's a huge GOL
u/zanella

My new favourite dweet. :)
u/hells-fargo

i was waiting to find this somewhere on here! :D

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sigomatix

remix of d/10073 by u/joeytwiddle

function u(t) {

c.width=1920,x.font='20em"'
for(i=-300;i<2e3;i+=99+t){x.fillText('🎈',i,625+200*S(i/15-4*t));x.font=15+S(t+i/5)*15+'em"'}

Sep 25 2018 5:23 PM UTC

}// 121/140

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keithclark

function u(t) {

for(c.width=340,i=160;i--;x.font=7+C(j=t*9+(X+Y)/2)+'pt a',x.fillText(['🔵','⚪️','🔴'][X/5|0],50+C(j)*4+X*16,32+S(j)*4+Y*16))X=i%15,Y=i>>4

Sep 25 2018 3:05 PM UTC

}// 136/140

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[...'🔵⚪🔴'] to save 4 bytes

u/f8f82804

u/keithclark: you have to remove the variant selector to make that work
u/MatthewKhan

You have to change the colours to make that work

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yonatan

function u(t) {

t?c.width|=0:U=V=Y=X=.1
d=X*X+Y*Y>1&&(X*U+Y*V)**.7
X+=U-=X*d
Y+=V-=Y*d-.01
x.arc(a=540,a,a,0,9)
x.arc(a+X*a,a+Y*a,40,0,9)
x.fill('evenodd')

Sep 25 2018 1:35 PM UTC

}// 139/140

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Phunky Physics

u/joeytwiddle

Fun! #bounce
u/cantelope

the last paramater of x.arc can be 7, 8, or 9 as a single digit that closes the circle.. i usually go with 7 because it's the closest integer > 2π, but it's interesting that you go with 9 usually :)
u/joeytwiddle

#physics

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Xen

function u(t) {

for(Y=i=960;i--;x.fillRect(Y+C(i-i/7+t)*Y,540+S(t+i)*540,19,19))x.fillStyle=R(Z=i/4,t*9%Z,Z*S(t))

Sep 24 2018 6:59 PM UTC

}// 97/140

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have a play with the C() and S() in fillRect

u/prplz

love it
u/joeytwiddle

Nice changing #pattern

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loni_art

function u(t) {

c.width|=R=θ=1
x.globalAlpha=.2
for(i=2e4;i--;R+=(1+t/16)*S(θ),θ=(θ+R)%6.28,R%=6.28)x.fillRect(S(θ)*R*75+999,C(θ)*R*75+600,9,9)

Sep 24 2018 2:44 AM UTC

}// 127/140

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Chirikov-Taylor map, automation on K #mapping #chaos #oscillation #waitforit

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u/joeytwiddle

https://wikipedia.org/wiki/Standard_map
u/donbright

woah
u/DataMeta

Niiiice
u/John_Matysik

tis nice
u/loni_art

i just noticed i got it wrong, since in treating angular momentum as radius!! its still a chaotic map but a different kind
u/MatthewKhan

tis

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Xen

remix of d/10048 by u/katkip

function u(t) {

c.width|=w=960;h=540;for(i=74;i--;x.restore())x.save(),x.translate(w,h),x.rotate(T(3*t+i/.32-T(t)/9)/i),x.strokeRect(-(s=i*9)/2,-s/2,s,s)

Sep 23 2018 6:20 PM UTC

}// 137/140

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quick play about

u/katkip

gltichy
u/f8f82804

nice technique

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katkip

function u(t) {

eval(unescape(escape`挮睩摴株㴱㭤㴨焬攬温㴾砮晩汬剥捴⡱⭮⨱〰⭓⡴⤪㌰〬攬㔰ⰲ〰⤻景爨椽〻椫⬼㤻⥤⠴〰ⰲ〰Ⱪ⤬搨㐰〫匨椪匨琩⭴⨲⤪㄰ⰷ〰⭃⠭椪䌨琯㤩⭴⨳⤪㄰Ⱪ⤻砮晩汬却祬攽✣〰晤✬砮晩汬剥捴⠰ⰵ㐰ⰲ攳ⰲ攳⤻`.replace(/u(..)/g,"$1%")))

Sep 23 2018 2:19 PM UTC

}// 140/140

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The most #realistic #water reflection Dweet ever!

u/joeytwiddle

Very nice! #default
u/sigveseb

Rocks hard

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jylikangas

function u(t) {

for(c.width=i=384;i--;x.fillRect(150-C(j)*99+C(i)*r-l,150-S(j)*40+S(i)*r/3+l*3,1,5/r))j=(i>>5)/2,a=t*2+j,q=a%6<3,r=q*a%3*9+1,l=q||a%3*45-135

Sep 23 2018 6:15 AM UTC

}// 140/140

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Meteor shower

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