Dweets awesomed by u/Vftdan

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.

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anotherkitten

remix of d/10649 by u/anotherkitten

function u(t) {

for(i=l=t%4*3;--i>0;j=t&4,x.fill(P=new Path2D, P.arc(j?0:1920,540,45*i*(t%4),n=t&4?-.3:2.84,n+.6)))x.fillStyle=(i-l)&1?R():"#fff"

Oct 24 2018 1:54 PM UTC

}// 129/140

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cool without clearing the screen

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Xen

function u(t) {

for(c.width|=i=299;i--;x.fill(x.arc(1e3+C(t+i)*i*4,500+S(t+i)*i*3,i/4,0,7)))x.beginPath(x.fillStyle=R(i*C(t^i),t*i%i,t*i%255))

Oct 23 2018 10:33 PM UTC

}// 126/140

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rnbw

function u(t) {

c.width=190;x.fillRect(0,0,190,107);x.fillStyle='#7fe8';for(j=0;j<121;j++)x.fillRect(0,3*Math.floor(j/11)+T(t+(j%11)*2)*60+39,190,3)

Oct 23 2018 4:40 PM UTC

}// 132/140

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here's more rectangles cuz i still gotta figure out how arcs work :p

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anotherkitten

remix of d/10600 by u/anotherkitten

function u(t) {

for(t+=i=17;i--;x.beginPath(x.fill()))p=i+t%1,x.fillStyle=`hsl(${(p-t)*9} 50%${i-t&1?40:60}%`,x.arc(960+C(p+t)*p*p,540+S(p+t)*p*p,5*p*p,0,7)

Oct 22 2018 4:11 AM UTC

}// 140/140

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odd spiral

Show more comments…
u/veubeke

wow
u/joeytwiddle

I really like these colours
u/pavel

groovy!
u/DataMeta

Niiice!
u/aleamb

yeah! cool!
u/pavel

You use a trick that does not work on iPhone. In the HSL call you need a space between S and L.
u/veubeke

@pavel: here’s a version that works in Safari d/10641

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pavel

remix of d/10485 by u/joeytwiddle

function u(t) {

for(z=42;j=z-->>1;x.fillRect(960+S(k)*15-w/2,540+C(k)*15+w/2-r,w,2*r-w))k=7*t-j/2,x.fillStyle=`hsl(${15*k},33%,${7*j}%)`,r=50*j,w=r*(.5+z%2)

Oct 20 2018 8:43 PM UTC

}// 140/140

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Fixed the plus shape in the back and added color cycling

u/pavel

Check it out in fullscreen

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Vftdan

remix of d/9836 by u/Vftdan

function u(t) {

c.width*=1;for(i=C(a=t*2)*5;i<8+S(t)*7;i+=.02,x.fillStyle=R(0,0,0,C(i+i/a)/3))x.fillRect(S(a+i)*200+960,C(t-i)*200+540,S(a)*8+9,C(i)*8+9)

Sep 14 2018 12:29 PM UTC

}// 137/140

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Vftdan

remix of d/9831 by u/Vftdan

function u(t) {

c.width*=1;for(i=C(a=t*2)*6;i<8+S(t)*8;i+=.1,x.fillStyle=R(0,0,0,C(t*i)))x.fillRect(S(a+i)*200+960,C(t-i)*200+540,S(a)*50+30,C(a)*50+60)

Sep 14 2018 12:01 PM UTC

}// 136/140

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Vftdan

function u(t) {

a=t*2;c.width*=1;for(i=0;i<8+S(a*2)*8;i+=.4){x.fillStyle=R(0,0,0,S(t)/2+1);x.fillRect(S(a+i)*200+960,C(a-i)*200+540,S(a)*50+60,S(a)*50+60)}

Sep 14 2018 5:58 AM UTC

}// 139/140

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My first dweet

u/joeytwiddle

Sweet dweet five feet

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joeytwiddle

remix of d/9735 by u/snail_

function u(t) {

i=a=>Math.random()**.58*a
for(j=99;j--;)
x.fillStyle=R(i(256),i(256),i(256),.01),
x.beginPath(),
x.arc(i(1920),i(1080),i(300),0,7),
x.fill()

Sep 10 2018 12:10 PM UTC

}// 140/140

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That plasma clouds trick again. Shouts to u/snail_!

u/f8f82804

#opal
u/joeytwiddle

Oh, on Mac this needs **.52*a
u/donbright

like a thunder cloud in an oil spot.... really unique...

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katkip

remix of d/9704 by u/katkip

function u(t) {

a=.2*9,b=9;c.width^=0;x.translate(960,540);for(τ=0;τ<2e3;τ++)x.rotate(t/1000),x.fillRect(S(τ*a)*1400,C(τ*b)*200,C(τ)*30,C(τ)*30)

Sep 9 2018 7:41 AM UTC

}// 128/140

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Orbits?

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