Top dweets of all time

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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New_Core

function u(t) {

for(c.width|=q=i=300;i--;x.fillRect(i,0,9,30))x.fillStyle=`hsl(${v=i+t},99%,50%)`,x.setTransform(a=C(v),b=S(v),a,-b,q*i%2e3,-q+v/6*q*5%2e3)

May 23 2019 2:43 PM UTC

}// 139/140

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konfetti =)

u/Xen

nicely done
u/katkip

#particles
u/username

confetti?

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keithclark

remix of d/11328 by u/keithclark

function u(t) {

for(x.fillRect(0,0,j=2e3,j);j--;x.clearRect(C(j)*r+960,S(j*j)*r+540,k=r>>8,k))r=900/(4-(t+j/13)%4)

Dec 7 2018 11:15 AM UTC

}// 98/140

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Golfed down to 98 bytes

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u/keithclark

Also fixes some glitches in the original
u/keithclark

swap ,k=r>>8,k for ,r>>=8,r to save a byte (97)
u/keithclark

also r=900/(4-(t+j/9)%4) => r=j/(4-(t+j/9)%4) (94)
u/iverjo

Very nice #starfield
u/keithclark

for(x.fillRect(0,0,j=2e3,j);j--;x.clearRect(C(j)*r+960,S(j*j)*r+540,r>>=8,r))r=j/(7-(t+j)%7) (92)
u/jylikangas

for(x.fillRect(0,0,j=2e3,j);j--;x.clearRect(C(j)*r+960,S(j*j)*r+540,r>>=8,r))r=j/(7-t++%7)(90)
u/keithclark

nice!
u/keithclark

for(x.fillRect(0,0,j=2e3,j);r=j--/(7-t++%7);)x.clearRect(C(j)*r+960,S(j*j)*r+540,r>>=8,r) (89)
u/jylikangas

Yes!
u/vain

very nice!
u/384.cz

#starfield

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jylikangas

function u(t) {

t?onmousemove=e=>X=e.x:X=99
F=a=>x.fillRect(i-a*X,a*50,a/5,h>0?0:h)
for(c.width=512,i=2e3,h=k=0;i--;F(!F(3)),F(5))h+=k=i*i%15<1?S(i**4):k

Dec 5 2018 7:36 AM UTC

}// 137/140

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Parallax Mountains #interactive - use mouse

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yonatan

function u(t) {

eval(unescape(escape`爽䵡瑨⹲慮摯活景爨畛栽ㄶ崽爨椽㉥㌩⨱攴㭩ⴭ㭸⹦楬汒散琨㜰㐫椥㌲⩨ⰹ㜰⴨椾㸵⤪栬栬栩⥮㵵孩崽爨焽椫⸵⵲⠩簰⤪⡵孱崫畛焫ㅝ⭵孱ⴳ㉝⭵孱ⴳㅝ簰⤪⸴㠬砮晩汬却祬攽刨渪㐬渪㈩`.replace(/u(..)/g,"$1%")))

Dec 2 2018 6:43 PM UTC

}// 130/140

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golfed from https://codepen.io/ge1doot/pen/aQPqXX?editor…

u/yonatan

r=Math.random;for(u[h=16]=r(i=2e3)*1e4;i--;x.fillRect(704+i%32*h,970-(i>>5)*h,h,h))n=u[i]=r(q=i+.5-r()|0)*(u[q]+u[q+1]+u[q-32]+u[q-31]|0)*.48,x.fillStyle=R(n*4,n*2)
u/yonatan

#flame #fire
u/jylikangas

I clicked hot and this appeared. Can confirm Dwitter UI is properly tested.
u/sigveseb

Hot indeed

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jylikangas

function u(t) {

t?i=t*9|0:c.width=-1
r=i<10?C(4/i)*89:i
x.fillStyle=R(r*7,r*3,y=i*9)
x[f='fillRect'](150-r,y,r*2,i-11)
x[f](y-99,i&&98,s=i?-9:1e3,s-y*y%49)

Nov 30 2018 4:12 PM UTC

}// 139/140

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We built this city on synthwave

u/magna

Whoa!
u/aleamb

wow!!!
u/aleamb

#city #landscape #stylish #eighties
u/aleamb

#waitforit
u/katkip

Awesome

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ellisk1

remix of d/11012 by u/ellisk1

function u(t) {

for(c.width|=i=3;i--;)x.arc(960,540,450*i*i,3.1,0);x.fill('evenodd');for(j=3e3;j--;)x.fillStyle=R(9,x.fillRect(2e3*S(j*j+t/9),j/2,j,5),j/55)

Nov 18 2018 5:05 PM UTC

}// 140/140

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Moonrise

u/joeytwiddle

Beautiful!
u/katkip

This is nice! #art #landscape #waves
u/joeytwiddle

Not a #sunset because it's the #moon!

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tomxor

function u(t) {

c.width=w=120
for(i=w*33;i--;x.fillRect(i%w,i/w*2,1,2))f=i%w+t*60,n=T(0|(i/w+f^f-i/w)/(t**.7+6)),x.fillStyle=R((n&1)*i/n/8,n**n,(n&3)*i/n/4)

Nov 3 2018 5:53 PM UTC

}// 140/140

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#retro #fractal #game

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u/tomxor

For the lazy game designer... Just add chip tunes and a player :D
u/tomxor

#crt #degauss #sidescroller
u/magna

Awesome!
u/magna

I had a RGB CRT setup, but I hadn't been able to fit any interesting patterns: d/7512
u/tomxor

I had a look at yours magna, they are true crt, much more realistic i think. The scan lines on this are just a sideeffect I exploited and it was easy to add colour distortion in the R().
u/magna

Here we go: d/10843
u/C010011012

is it a cellular automata?
u/tomxor

Yes and no, it's a fractal n=T(0|(i/w+f^f-i/w)/(t**.7+6)) which is just a more elaborate variation of serpinsky triangles to produce more interesting patterns. Some fractals are automata, but not all automata are fractals, see here: https://en.wikipedia.org/wiki/Rule_90
u/tomxor

The implication is serpinsky triangles are computationally reducable, meaning it does not have to be computed in the same way as a cellular automata i.e state can be computed at step t directly without traversing intermidiate steps.

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joeytwiddle

remix of d/10788 by u/joeytwiddle

function u(t) {

eval(unescape(escape`琪㴮㜻景爨椽㘰〻椭ⴻ砮捬敡牒散琨㤶〭圬㤹⭩ⰲ⩗ⰱ⤩圽⠶〰⩩⵩⩩⤪⨮㔻景爨樽㤻樭ⴻ砮晩汬剥捴⠹㘰ⴵ〰⩃⠲⩴⤭猪⡪ⴴ⤯㌬㐰〭猪匨㠰⩴⤪⠨樭㐩⨪㈩⨪⸵⼲⸹⵳⼲⬸〪匨㐪琩ⱳⱳ⤩猽㤫吨琯㕼簸⤪⨸`.replace(/u(..)/g,"$1%")))

Oct 31 2018 7:22 AM UTC

}// 140/140

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Halloween moon bat

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u/yonatan

This is great! wings are definitely worth the extra 44 chars
u/magna

I'm smiling uncontrollably. Was on a video conference. Had to turn off camera.
u/magna

The comedic timing of the animation is perfect!
u/magna

#waitforit
u/lionleaf

#halloween
u/joeytwiddle

Thank you. Although it was supposed to make you scream...
u/Xen

i was already screaming if that counts.... ;-)

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Xen

remix of d/10641 by u/veubeke

function u(t) {

for(t+=i=19;i--;x.fill(P=new Path2D,P.arc(960+C(p*t)*p*p,540+S(p*t)*p*p,5*p*p,0,9)))x.fillStyle=`hsl(${(p=i-t%1)*i+t*9} 50%${i-t&1?1:5}0%`

Oct 24 2018 4:58 PM UTC

}// 138/140

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u/anotherkitten

this is fast enough it looks like it has shadowblur to me
u/veubeke

❤️💜💙💚💛🧡
u/katkip

#xweet

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keithclark

function u(t) {

for(c.width=640,i=4e3;i--;x.fillRect(320-(3+S(t)-i%8)*J,210-((i/8&7)-2.2)*J,J/=2,J))J=i/64&4&&85/(i/64+t%.9*9)*60,x.fillStyle=R(q=2e4/J,q,q)

Oct 17 2018 4:20 PM UTC

}// 140/140

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u/yonatan

Very nice!
u/aleamb

wow, great!!
u/magna

Get out!
u/joeytwiddle

:-D
u/iverjo

Very good!