Dweets awesomed by u/rpearl

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: #ScaryMovies

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rpearl

function u(t) {

for(r=1.178,c.width|=s=0;s<8;st=s*r/3,ds=S(t*2+r*s)*500,x.beginPath(),x.arc(960+S(st)*ds,540+C(st)*ds,50,0,6),x.fill(),s++);

Mar 19 2017 9:14 PM UTC

}// 124/140

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u/aemkei

Magic cups!
u/iverjo

#dots
u/UEZ

no collision at all

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rpearl

function u(t) {

for(i=v=540,j=50,x[r='fillRect'](0,0,v*4,v*4);i--;)x[r](960+C(a=i*3.883)*i,v+S(a)*i,9,9,x.fillStyle=`hsl(${h=t*i},99%,${j*S(h/j)}%)`)

Mar 10 2017 11:21 PM UTC

}// 133/140

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I'm mostly just obsessively golfing the one cool demo I did and using the excess characters to add cool things... I should figure out more demos

u/donbright

this is joyous
u/FireFly

It's super pretty!
u/sigveseb

Super stylish!

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rpearl

remix of d/2006 by u/rpearl

function u(t) {

x.fillStyle=R(),i=v=540
x.fillRect(0,0,v*4,v*2)
for(;i;i--){a=i*3.883
x.fillStyle=`hsl(${t*i},99%,50%)`
x.fillRect(960+C(a)*i,v+S(a)*i,9,9)}

Mar 10 2017 4:25 AM UTC

}// 140/140

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u/sfz

Like a Ferris wheel at night! Ooh ahh
u/jsizzle

Beautiful

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rpearl

function u(t) {

for(i=0;i<600;i++){a=i*3.883,h=t*i/3
x.fillStyle=`hsl(${h},100%,50%)`
x.beginPath()
x.arc(960+C(a)*i,540+S(a)*i,12,0,6.28)
x.fill()}

Mar 10 2017 1:16 AM UTC

}// 132/140

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u/donbright

great colors. if you make i/t/S(t/10) it is pretty funky
u/donbright

make a = i/t/S(t/10) i mean
u/rpearl

that's a cool edit! totally different but somehow similar
u/jsizzle

Oh my god, hypnotic!

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kchplr

function u(t) {

for(c.width|=0,i=3e3;i--;X=S(t+i*.01)*500,D=1-((Y-540)**2+X*X)**.5/400,x.fillRect(960+X*D*1.7,Y+D*(100+S(t)*99),D*D*99,D*20))Y=(t+i<<2)%2e3

Mar 9 2017 6:42 PM UTC

}// 139/140

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u/jsizzle

Wow!
u/recursive

The movement looks like smoke. Very nice.
u/iverjo

Nice!
u/joeytwiddle

#smoke

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