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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gpolonus

remix of d/17824 by u/gpolonus

function u(t) {

f=(a,y)=>x.fillRect(a,y,9,9)
t||c.addEventListener('mousemove',e=>((a,y)=>[a,2e3-a].map(d=>f(d,y)|f(d,1e3-y)))(e.x*3.4,e.y*3.4))

Mar 3 2020 8:45 PM UTC

}// 128/140

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Even shorter 4 mouse cursors

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katkip

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𮱡👘👙🐰𞱔👛𜁝𯐻𮠽𣑡𭁨𛡐𢐯𜠻𩡯𬠨𫰠𫱦𘁔𚑸𛡦𪑬𫁒𩑣𭀨𝐰𞀫𦀬𝐰𞀫𦐬𜰬𜰩𛁘𚰽𠰨𨐩𚠳𛁙𚰽𤰨𨐩𚠳𛁡𚰽𫰽🐱🱺𞠭𮠻𪑦𚁔𛡬𩑮𩱴𪀼𞀹𜀰𚑔𛡰𭑳𪀨𛠮𛡔𛡲𩑶𩑲𬱥𚀩𛀱𚐠`.replace(/uD./g,'')))

Mar 3 2020 8:29 PM UTC

}// 117/140

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a #fractal #curve but I am not sure that curve is this because in the middle is different if(!t){a=X=Y=0;T=[0]};z=Math.PI/2;for(o of T)x.fillRect(508+X,508+Y,3,3),X+=C(a)*3,Y+=S(a)*3,a+=o==1?z:-z;if(T.length<8900)T.push(...T.reverse(),1)

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Xen

remix of d/17821 by u/Xen

function u(t) {

for(c.width|=i=399;i--;x.beginPath(x.stroke()))x.strokeStyle=R(Z=570-i,Z),x.ellipse(990,500+S(i)*9,(z=190+i/9)*C(t*5)+i,z*2,0,0,9)

Mar 3 2020 5:46 PM UTC

}// 130/140

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#Sonic Ring

u/Xen

needs improving

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gpolonus

function u(t) {

x.fillStyle=R(0,0,0,.1)
c.a||c.addEventListener('mousemove',({x:a,y})=>x.fillRect(a*3.41-10,y*3.38-10,20,20))
c.a=1

Mar 3 2020 2:50 PM UTC

}// 115/140

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Move the mouse

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django

function u(t) {

g=(l,v,f,b)=>l<1?0:f(v+g(l-1,v,l&1?b:f,l&1?f:b))
k=(t/3.1)|1;for(i=0;i++<20;)x.fillRect(960+g(7,n=t-i/100,C,S)*30*k,540+g(2,n,S,C)*40*k,9,9)

Mar 2 2020 3:12 AM UTC

}// 140/140

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Topography sketch. its not quick, but i think its cool #140

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BriSeven

remix of d/17787 by u/BriSeven

function u(t) {

for(i=r=X=9e2,Y=5e2,W=(H=1e3)*4;i;i--)x.fillStyle=`hsl(${i/20+60},${i/20+20}%,50%)`,x.fillRect(X+=3*S(r+=C(Y*t*r)),Y+=3*C(r),5,5)

Feb 28 2020 3:40 AM UTC

}// 129/140

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Mossball

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katkip

remix of d/17748 by u/katkip

function u(t) {

P=(θ,R)=>x.fillRect(C(θ/99)*R+960,S(θ/99)*R+540,1,1)
f=x=>S(-x*2)*C(x)-t
t||(q=z=0)
for(i=2999;i--;)P(q*40,S(z)*200+200),q=f(z-q),z=f(q+z/2)

Feb 27 2020 2:03 PM UTC

}// 140/140

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katkip

remix of d/17748 by u/katkip

function u(t) {

P=(θ,R)=>x.fillRect(C(θ)*R+960,S(θ)*R+540,1,1)
t||(q=z=0)
for(i=2999;i--;)P(q*3.14,z*99),q=S(q-z*z)-4*S(t)+7+C(z*q)*4,z=S(q*17-z/99)*q/3

Feb 25 2020 8:40 PM UTC

}// 136/140

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Another flower made using #chaos and polar coords

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joeytwiddle

remix of d/17674 by u/Layl

function u(t) {

r=Math.random
t%2<.1&&(x.beginPath(R=1),x.fillStyle=t&2?'#fff1':'#2042')
R*=1.07,v=r()*R
x.lineTo(960+1.5*C(a=r()*99)*v,540+S(a)*v)
x.fill()

Feb 23 2020 6:38 PM UTC

}// 140/140

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Endless Purple Crystal Growth

u/joeytwiddle

A dweet using a similar approach with rectangles: d/12819

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katkip

function u(t) {

t||(s=0)
a=S(s)+C(t)*s*s
s=S(t)-S(a)+C(a/9+t/5)/5
for(i=7;i--;)x.beginPath(),x.arc(960+S(.89*i+a)*s*500,540+C(.89*i+a)*s*500,4,0,7),x.fill()

Feb 23 2020 2:51 PM UTC

}// 140/140

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symmetry + chaos formulas = flower

u/katkip

#waitforit #chaos #flower