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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pavel

remix of d/9294 by u/cantelope

function u(t) {

for(i=w=c.width|=q=6.2832;i--;x.arc(960+S(p=(i>>1)*q/9-t)/Z*w,540+C(p)/Z*w,Z*Z,a=-t%q,a))Z=2+(i-1&-2)%98-8*t%2,i%98||x.beginPath(x.stroke())

Feb 6 2019 2:02 AM UTC

}// 140/140

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#uncompressed

u/cantelope

gotta hand it to you 👏
u/pavel

Playing it safe on the arc angle, modding it by 2pi just to avoid the bug on Safari.

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katkip

remix of d/11741 by u/katkip

function u(t) {

c.width^=0;for(i=800;i--;)x.lineTo(960+S(i*S(i)+t/9)*500,540+C(i*S(i)+t/9)*500);x.fill()

Jan 11 2019 2:46 PM UTC

}// 88/140

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#earth planet

u/13thptr

woah
u/username

does not look like earth though
u/joeytwiddle

It does look like a #planet though. Cool effect for 88
u/katkip

That line in the middle looks a bit like Rusia
u/magna

Awesome technique! You could potentially add a way to "seed" the generation with a number and then search for a seed that resembles the Earth the most using brute-force.

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ellisk1

function u(t) {

r=t?r:Array(n=1250).fill(n);for(j=n;j-=2;x.fillRect(r[j]+=d*S(a=j%2**(t|0)+t+d),r[j-1]+=C(a)-2,w,w))x.fillStyle=R(w=j/n*200/t,d=3+(t>8)*t*t)

Jan 1 2019 9:48 PM UTC

}// 140/140

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Bonsai

u/katkip

finally something awesome
u/lionleaf

That's amazing! #bonsai #tree #organic #plant
u/DataMeta

Wow
u/hollo47

Impossible.

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veubeke

function u(t) {

c.width^=0
x.font='6em"'
for(i=9;i--;x.fillRect(25,0,50,200))x.setTransform(1,0,0,-1,(5+i)*99,(600-(t>i&&t-i)**9)),t>i&&x.fillText('🔥',0,0)

Dec 9 2018 11:35 AM UTC

}// 139/140

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#default #rockets

u/jylikangas

Awesome! :D
u/katkip

#genius
u/Xen

Love it!
u/aleamb

Lol!
u/lucio

Now make the booster land back :-)

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rodrigo.siqueira

remix of d/11131 by u/rodrigo.siqueira

function u(t) {

c.width|=N=890;x.font='3em"'
JSON.stringify(Object.keys(this)).split`"`.some((_,i)=>x.fillText(_,S(t+i)*280+N,N+i*9-Math.abs(S(t/40)*5e3)))

Nov 23 2018 6:13 PM UTC

}// 139/140

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DNA CODE

u/katkip

that's smart
u/lionleaf

#dna

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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

Show more comments…
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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pavel

remix of d/10485 by u/joeytwiddle

function u(t) {

for(z=42;j=z-->>1;x.fillRect(960+S(k)*15-w/2,540+C(k)*15+w/2-r,w,2*r-w))k=7*t-j/2,x.fillStyle=`hsl(${15*k},33%,${7*j}%)`,r=50*j,w=r*(.5+z%2)

Oct 20 2018 8:43 PM UTC

}// 140/140

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Fixed the plus shape in the back and added color cycling

u/pavel

Check it out in fullscreen

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veubeke

function u(t) {

for(c.width|=i=128;i--;x.fillText('🦈',960+(C($*2)+C($*5)/9)*8*_+S(t)*500,(1-y)*1200))y=($=t+i)/10%1,x.font=((2+S($*2))*(_=10+y*50)|0)+'px"'

Sep 12 2018 8:19 PM UTC

}// 139/140

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Sharknado

Show more comments…
u/f8f82804

#emoji
u/Xen

Love It!
u/aleamb

lol!
u/f8f82804

#d3
u/sigveseb

Haha
u/zanella

... and THAT, my friends, is the reason why Dwitter was invented.
u/magna

Very topical
u/joeytwiddle

#emoji #tornado

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magna

function u(t) {

x.fillRect(0,0,c.width=w=255,w)
for(i=99;i--;x.fill(x.arc((t*b*i+i*i)%w,99+b,5+b/5,!x.beginPath(),7)))b=i&1?1:-1,x.fillStyle=R(w,b*w,b*w,.2)

Jun 26 2018 3:22 AM UTC

}// 140/140

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Highway at night #bokeh

u/lionleaf

I like it! #traffic
u/magna

2 chars shorter, yellow headlights: with(x)for(i=fillRect(0,0,c.width=w=255,w)|99;i--;fill(arc((t*b+i)*i%w,99+b,5+b/5,!beginPath(),7)))b=i&1?1:-1,fillStyle=R(w,b*w,b*w*.8,.2)
u/aleamb

absolutely beautiful, magna
u/joeytwiddle

Love it. Reminds me of Mercury - The Timeless. Would be great to get some z-axis going.
u/magna

Thanks folks!

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aleamb

function u(t) {

c.width=512;b=136;for(y=b;e=0.7*y,f=y-60,f*=f,y-=2;)for(m=b;m--;)d=m-70,z=S(t)*b*Math.exp(-1e-3*(f+d*d)),x.fillRect(m+e+b,-z+e+100,1,1)

Feb 14 2018 1:37 AM UTC

}// 135/140

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Shorter version: c.width=512;b=136;h=60;for(a=b*b;a--;)m=a%b-h,y=a/b-h,e=0.7*y,x.fillRect(m+e+100,S(t)*b*Math.exp(-1e-3*(y*y+m*m))+e+150,1,1)

u/iverjo

Further, 0.7 can be replaced with .7
u/aleamb

#function #p3d
u/aleamb

#math
u/aleamb

#d3