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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DirtyDan

function u(t) {

a=360
with(x)for(i=-1;i++<1;)for(j=0;j++<17;beginPath())arc(960,a+a*i,b=j*20,i?33/7:11/7,i?0:22/7,1),stroke(),fillRect(598+b+i*a,a,3,a)

Jun 9 2018 4:48 AM UTC

}// 135/140

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Wanted to fit a thicker line width in but I didn't see a way to. I think it looks okay anyway.

u/DirtyDan

Inspired by: https://old.reddit.com/r/GeometryIsNeat/comm…
u/pythech

it is possible, remixed it with the thicker lines
u/pythech

the trick is x.lineWidth
u/DirtyDan

Yeah, I just couldn't fit it in 140 chars

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robbyg

function u(t) {

t||(X=[...Array(50).keys()],Y=[...X]);for(i=50;i--;)h=X[i],x.fillRect(X[i]=950+(S(1*Y[i])-C(2*h))*440,Y[i]=550+(S(3*h)-C(4*Y[i]))*230,5,5)

Jun 8 2018 5:53 PM UTC

}// 138/140

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Peter de Jong attractor. Changing the 1, 2, 3, 4 multipliers in the sine/cosine functions changes the shape.

u/robbyg

#attractor
u/rodrigo.siqueira

Robbyg, here is a smaller version with higher resolution. Same equation, no need to create array: t||(h=X=Y=0);for(i=950;i--;) X=950+(S(1*Y)-C(2*h))*440, Y=550+(S(3*h)-C(4*Y))*230, h=X,x.fillRect(X,Y,1,1)

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magna

remix of d/8479 by u/magna

function u(t) {

t||(d=c.cloneNode()).getContext`2d`.fillText('🐱',0,15)
s=55
for(i=1e3;i--;x.drawImage(d,X=i&31,Y=i>>5,1,1,X*s+580,Y*s,s,s))x.rotate(C(t))

Jun 7 2018 4:06 AM UTC

}// 138/140

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If you wait long enough on macOS, it starts looking like you've zoomed into a gold-plated torus.

u/Qwitter

when you fail to cross off enough "post it note" to do reminders?

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veubeke

remix of d/8423 by u/veubeke

function u(t) {

r=Math.random
for(a=2e3;a--;x.fillRect(a,b,9,9))b=r()*960,$=b/30-S(a/300),x.fillStyle=R(0,0,($>20?13-($>r()*30)*9:(a|b<<11)%101?r()+2:9)*50)

Jun 5 2018 5:10 PM UTC

}// 140/140

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u/DataMeta

Neat. I see a starry night in the desert
u/aleamb

great!!!
u/iverjo

Looks a little bit like ISO noise from a digital camera ^^

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DataMeta

remix of d/8405 by u/DataMeta

function u(t) {

c.width=1920;p=Math.PI;r=Math.random();for(i=0;i<300;i++){x.fillRect(960+p*i*S(t+i*.9),540+S(t/7+i/p)*i*1.55925,T(t/2)*r*2+2,T(t+i)*r*2+2)}

Jun 5 2018 3:11 AM UTC

}// 139/140

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fireflies glitching

u/DataMeta

#glitch

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pythech

remix of d/8305 by u/pythech

function u(t) {

c.width|=0
with(x)for(i=9;--i;font="15em 🤔")fillText('🤔',3*S(t)*C(t*i)*300+800,S(t*i)*300+640)

May 29 2018 8:25 PM UTC

}// 94/140

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u/magna

🤔
u/S.T.L.K.R.

Muazzam

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DataMeta

remix of d/8027 by u/cesque

function u(t) {

c.width|=0;p=Math.PI;x.lineWidth=60;for(i=1;i<20;i++){x.beginPath();x.arc(960,540,50+(i*50)+S(t+i/p)*50,t+(i*3)+S(t),t/i+(i*p));x.stroke()}

May 24 2018 7:24 PM UTC

}// 139/140

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u/joeytwiddle

What is it? Is it trying to share its technology, or eat us?
u/DataMeta

Haven't been able to evoke a response from it. It just keeps broadcasting this signal.

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Tesseract

remix of d/8219 by u/Tesseract

function u(t) {

t||(p='m341 341',d=k=0)
for(i=x.lineWidth=4;i--;d+=(k++^k)+1&k?-1:1)p+=(d%2?"h":"v")+(d&2?"8":"-8")
x.stroke(new Path2D(p))//slow if in loop

May 24 2018 1:53 AM UTC

}// 140/140

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u/Xen

faster than mine :-O nice work

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Xen

remix of d/8153 by u/prplz

function u(t) {

r=Math.random
for(i=1e3;i--;x[y+C(t)*T&8^z+S(t)*T&8?'fillRect':'strokeRect'](y*T,z*T,T=44,T))y=r()*T,x.fillStyle=`hsl(${z=r()*T},70%,39%)`

May 20 2018 5:41 PM UTC

}// 138/140

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Shoutz 2 prplz

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firegodjr

remix of d/8134 by u/firegodjr

function u(t) {

x.font='3em x';r=Math.random;for(i=63;i--;x.fillText('◢◣◤◥'[r()*4|0],i*32,(t*5|0)*32))f=r(),x.fillStyle=R(l=(C(i/5)+(t-2)%6/2+f-.5)*255,l,l)

May 19 2018 1:28 AM UTC

}// 140/140

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Gradient triangles!