Top dweets by u/DirtyDan

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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DirtyDan

remix of d/5711 by u/DirtyDan

function u(t) {

b=540
c.width=1920
t*=t
for(i=0;i<b;i++){
x.fillStyle=`hsla(${i+t*20},90%,50%,.3)`
x.fillRect(960+i*C(r=i/b*t)-25,s=b+i*S(r)-25,50,50)
}

Jan 7 2018 8:14 PM UTC

}// 137/140

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credit to u/DonKarlssonSan for the color code (from d/5714)

u/DirtyDan

d/5714
u/DonKarlssonSan

Yea, hsl is good for rainbow colors. I use it all the time on CodePen, like this one: https://codepen.io/DonKarlssonSan/pen/XdQGoY
u/DirtyDan

New to javascript, didn't know editing a hue value was an option, thanks.
u/Xen

dude.... join the chat, eveyones there ready for questions ;-)
u/nml

whoa

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DirtyDan

function u(t) {

b=540
x.beginPath() 
x.fillStyle=R(a=255,a,a)
for(i=0;i<b;i++){x.lineTo(q=960+i*C(r=i/b*t*t),s=b+i*S(r))
x.fillRect(q-4,s-4,8,8)}x.stroke()

Jan 7 2018 4:52 PM UTC

}// 139/140

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u/Xen

nice effect
u/Xen

done you a remix d/5721
u/alien

wow
u/iverjo

Mesmerizing in fullscreen

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DirtyDan

remix of d/7051 by u/DirtyDan

function u(t) {

with(x)for(i=32;i-->2;)fillStyle=`hsl(${i*t*9},100%,50%)`,lineWidth=i*2,beginPath(arc(960+C(a=t*i/3)*i,540+S(a)*i,i*i/2,0,7),fill(stroke()))

Feb 23 2018 2:34 AM UTC

}// 140/140

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u/aleamb

beautiful!
u/fons

dope
u/zanella

Nice color palette!
u/iverjo

Good colors indeed
u/Xen

love it

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DirtyDan

remix of d/7009 by u/DirtyDan

function u(t) {

with(x){lineWidth=b=44
fillStyle="#FFF"
for(i=0;i<b;i++)beginPath(),arc(960+S(a=t*i/b*4)*(d=i*t*S(t)),540+C(a)*d,i*3,0,b/7),stroke(),fill()}

Feb 20 2018 3:01 AM UTC

}// 140/140

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If someone can shave 2 characters off, we can invert the colors! Like in d/7011

u/akm

here, I shaved off 10 chars: with(x)for(fillStyle="#FFF",i=0;i++<44;lineWidth=44)beginPath(arc(960+S(a=t*i/11)*(d=i*t*S(t)),540+C(a)*d,i*3,0,7),fill(stroke()))

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DirtyDan

function u(t) {

for(c.width+=i=0;i++<8;x.beginPath())x.lineWidth=66,
x.ellipse(960,540,z=67*i,z*Math.abs(q=C(a=(9-i)*t)),a,0,7)
,x.stroke()

throw q

Mar 22 2018 9:44 PM UTC

}// 132/140

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Just posting so I can save it for later, not quite what I had in mind.

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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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DirtyDan

function u(t) {

c.width+=0
x.lineWidth=9
for(i=1;i++<8;)x.beginPath(),x.ellipse(960,540,270*(1+S(t*i)),270*(1+C(t)),t*i/5,0,7),x.stroke()

Feb 27 2018 3:38 AM UTC

}// 121/140

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DirtyDan

function u(t) {

p=Math.PI*2
a=960
b=535
c.width=a*2
for(i=0;i<a;i+=10)for(j=0;j<b;j+=10)
x.fillRect(a+b*S(i/a*p+S(t))*C(j/b*p),b+b*S(j/b*p)*C(i/a*p+t),9,9)

Jan 7 2018 12:43 AM UTC

}// 139/140

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u/sigveseb

Ooh, one second it is 2d, and the other it is 3d! really nice
u/Xen

very nice

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DirtyDan

remix of d/7586 by u/New_Core

function u(t) {

Z=Math.random
x.shadowColor=R(x.shadowBlur=a=128)
x.fillStyle=R(g=Z()*a+a*2,425-g)
x.beginPath(x.fill())
x.arc(Z()*2e3,Z()*1e3,Z()*a+50,0,7)

Apr 6 2018 1:29 AM UTC

}// 140/140

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Orange :D

u/magna

Pretty! :D
u/sigveseb

<333
u/diceroll123

O R A N G

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DirtyDan

remix of d/7021 by u/DirtyDan

function u(t) {

with(x)for(i=82;i-->1;lineWidth=9,strokeStyle="#FFF")beginPath(arc(960+C(a=t*i/9)*(d=i*9*S(t)),540+S(a)*d,i*3,0,7),fill(stroke()))

Feb 21 2018 12:01 AM UTC

}// 130/140

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u/akm

nice!

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