Dweets awesomed by u/artfarnaa

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) {

for(c.width+=i=0;i++<4;)for(j=0;j++<4;){x.arc(480+180*j,90+180*i,90+90*(1+S(t*(i+j))),0,6.29);x.closePath()}x.fill("evenodd")

Apr 30 2019 9:52 PM UTC

}// 125/140

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Jezza

function u(t) {

for(i=9,j=.1,X=960,k=Y=540;k/=2,i--;j*=-3)X+=C(t*j)*k,Y+=S(t*j)*k,x.fillRect(X,Y,1,1)

Apr 29 2019 2:38 AM UTC

}// 85/140

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#epicycles #notstrictlyepicycles

u/vinca

Beautiful and minimal code.
u/artfarnaa

Agree, well done.
u/katkip

WTF! You published a #fractal #spirograph with 5 minutes before me! I was gonna create the exact same ideea. Wow

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username

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('undefined'[i%9],i%z*99,t++%z*60)

Apr 26 2019 10:07 PM UTC

}// 140/140

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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('マトリックス'[i%6],i%z*99,t++%z*60)

Apr 26 2019 8:01 PM UTC

}// 137/140

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What is The #Matrix? v1

u/artfarnaa

Awesome.

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bandaloo

function u(t) {

c.width|=0;for(i=1896;i-=24;)for(j=1056;j-=24;)x.fillStyle=R(6*(s=6*(4+C(t*6)+C(C(t)*i/99+t)+S(S(t)*j/99+t))),0,s+i/9),x.fillRect(i,j,s,s)

Apr 24 2019 4:13 AM UTC

}// 138/140

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rodrigo.siqueira

remix of d/13410 by u/katkip

function u(t) {

if(t<2){x.globalAlpha=.7
x.fillRect(0,0,1,1)
x.rotate(Math.PI*.8)
x.translate(-450,-700)
x.drawImage(c,0,0,1e3,1e3)
x.translate(-900,-310)}

Apr 23 2019 2:52 PM UTC

}// 139/140

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Starfield #fractal

u/katkip

Nice
u/sigveseb

Pretty af
u/Purpzie

Shortened by 5 characters: if(t<2)with(x)globalAlpha=.7,fillRect(0,0,1,1),rotate(Math.PI*.8),translate(-450,-700),drawImage(c,0,0,1e3,1e3),translate(-900,-310)

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Xen

remix of d/13335 by u/bandaloo

function u(t) {

for(i=199;i--;x.beginPath(x.fill(x.arc(960+d*9*C(i+t)*i,540+d*9*S(i+t)*i,i,0,44/7))))d=C(S(t/69)*i),x.fillStyle=R(i*2,t^i,i*t%255,.1)

Apr 21 2019 8:28 PM UTC

}// 133/140

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Had to have a play

u/bandaloo

sick!
u/KilledByAPixel

i need to try this alpha thing i been hearing about
u/DeathBoy

LOVE it!

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KilledByAPixel

function u(t) {

for(i=0;i<2e3;x.fillRect(i?960+i*S(F=300*t/i+i+S(z)/9):0,i?460+.2*(2*i*C(F)):0,K=i++?S(i)*9:2e3,K))x.fillStyle=R(z=i*i,z%498,z%499,.2+i)//★

Apr 20 2019 5:26 PM UTC

}// 140/140

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#galaxy

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KilledByAPixel

remix of d/13209 by u/KilledByAPixel

function u(t) {

for(i=99;i--;)N=255*(S(3.14*i+2*t)),Y=520*S(t+i),X=940*S(i+3*t),x.fillStyle=R(N,N,N),x.beginPath(),x.fillRect(940+X,520+Y,40,40)

Apr 12 2019 4:48 PM UTC

}// 128/140

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More playing with the equation. I'm really liking what it can do without the background clear.

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pavel

function u(t) {

for(c.width|=k=0;k<50*t;x.ellipse(960,540-750*(i%2-.5)*y,r=400*(1-y*y)**.5,r/3,0,a=(2*i+k++%2-t)%16*.393,a))i=k/98|0,y=k%98/49-1
x.stroke()

Apr 9 2019 12:06 AM UTC

}// 139/140

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Single stroke beach ball sketch

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