Dweets awesomed by u/taupelink

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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taupelink

function u(t) {

C=100
c.width|=0
for(i=9;i--;)x.fill(new Path2D(`M${C*(4+i+3*S(t))} 400 h50 v${2*C} h-50 v${-2*C}`))

Jun 9 2019 9:57 PM UTC

}// 101/140

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#default with #path2D

u/katkip

nice
u/taupelink

Notes: The v${-2*C} at the end can be omitted. I regret my choice of "C" for a variable name--that's cosine :)

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KilledByAPixel

remix of d/14426 by u/KilledByAPixel

function u(t) {

w=c.width|=0;x.fillRect(0,W=1e3,w,w);for(i=99;i--;x.fill(p=new Path2D(),p.arc(i*18+19,W-Y-i+9,i,0,7)))Y=800*(S(t*2+i/50)**2)**.5

Jun 9 2019 7:42 PM UTC

}// 128/140

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Bounce

u/aleamb

love it!
u/joeytwiddle

#bounce

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Xen

remix of d/14505 by u/simonmkwii

function u(t) {

for(x.fillRect(0,0,i=940,i);z=--i**.25;x.fillStyle=R(0,900/--z,0,.4))x.setTransform(s=20/z,0,0,s,9,1),x.fillText(2*C(i)|0,i%z*94,t++%z*54)

Jun 9 2019 7:05 PM UTC

}// 138/140

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#matrix

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simonmkwii

remix of d/13488 by u/pavel

function u(t) {

for(x.fillRect(0,0,i=640,i);z=--i**.3;x.fillStyle=R(0,500/--z))x.setTransform(s=20/z,0,0,s,0,0),x.fillText(';',i%z*99,t++%z*60)

Jun 9 2019 6:59 AM UTC

}// 127/140

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;

u/katkip

um ok
u/lionleaf

#matrix :) Nice one
u/Xen

oooo

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rodrigo.siqueira

remix of d/14486 by u/rodrigo.siqueira

function u(t) {

if(t<18){Y=S(t)*999,X=t*Y
for(i=7e3;i--;)ℵ=Y,Y+=S(Y+X),X+=ℵ,x.fillStyle=R(Y*60,i/55,t*8),X%=τ=Math.PI*2,Y%=τ,x.fillRect(X*310,Y*330,1,1)}

Jun 7 2019 8:14 PM UTC

}// 137/140

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Phase-space of the Standard Map - color version. It is constructed by a Poincaré's surface of section of the kicked rotator, as described here: https://en.wikipedia.org/wiki/Standard_map

u/Xen

love it!

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elaborate

remix of d/12050 by u/elaborate

function u(t) {

c.width=1920;for(i=0,t-=555;i<2222;i++){t-=T(t*1/222);x.fillRect(T(t)*333,1.5*i+T(t),22,999)};

Jun 7 2019 3:49 AM UTC

}// 94/140

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u/joeytwiddle

Makes me want to run to the right

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taupelink

remix of d/11655 by u/Undefined

function u(t) {

l=(n,a)=>(a.push(n),n-1?l(n%2?n*3+1:n/2,a):a)
c.width|=0,k=0,b=l(~~t+2,[]),m=(Math.max(...b)/99)|1
b.forEach(X=>x.fillRect(k++*20,0,20,X/m))

Jun 7 2019 2:21 AM UTC

}// 140/140

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Mini #collatz, adapted for column graphs #math

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KilledByAPixel

function u(t) {

for(i=0;i<1e3;x.fillRect(i?i*9%2e3+40*S(t+i):0,i++?q*5+i*99%299:0,q,q))q=i?((1+S(i))*3e7-t*(i%9+9))%199:2e3,x.fillStyle=R(i?255:0,i?q*1.4:0)

Jun 6 2019 5:44 AM UTC

}// 140/140

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#fire #uncompressed

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KilledByAPixel

function u(t) {

for(s="",a=[i=1];i++<300;s+=a[i-2]+"/"+a[i-1]+"&emsp;")i%2?(n=(i-1)/2,m=n+1,a.push(a[n-1]+a[m-1])):(n=i/2,a.push(a[n-1]))
t?0:c.outerHTML=s

Jun 5 2019 8:36 PM UTC

}// 139/140

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Generating every fraction in order using the Stern–Brocot sequence.

u/KilledByAPixel

Minified version of this https://jan.jarfalk.se/infinite-fractions/
u/taupelink

#math
u/taupelink

#numbertheory
u/KilledByAPixel

https://en.wikipedia.org/wiki/Stern%E2%80%93…

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taupelink

remix of d/14386 by u/katkip

function u(t) {

c.width*=1
t||(a="Sort by new".split(""),i=m=0)
a[++i]>(q=a[m])||(a[m]=a[i],a[i]=q)
i%11||(i=++m)
x.font='9cm"';x.fillText(a.join(""),0,560)

Jun 4 2019 10:44 PM UTC

}// 140/140

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Amplifying the signal. I like "Sort by new" too! #sort

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