Dweets awesomed by u/pythech

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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Current theme challenge: #Opposites

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pythech

remix of d/8528 by u/BirdsTweetCodersDweet

function u(t) {

for(i=2;i--;x.fill())x.beginPath(x.fillStyle=R(i?a=S(t*2)*129+129:0,0,i||a))|x.arc(960+80*S(i?π=t*5:n),540+80*C(i?n=π+3:π),80-30*S(t*8),0,7)

Jun 11 2018 12:32 AM UTC

}// 140/140

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golfed version of a=S(t*2) variation, which was mentioned under the comments by OP

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BirdsTweetCodersDweet

function u(t) {

for(i=2;i--;)x.beginPath(x.fillStyle=R(i?a=S(t)*129+129:0,0,i?0:a))|x.arc(960+80*S(i?π=t*5:n),540+80*C(i?n=π+3:π),80-30*S(t*8),0,7)|x.fill()

Jun 10 2018 4:28 PM UTC

}// 140/140

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Spinning orbs

Show more comments…
u/BirdsTweetCodersDweet

Longer, but better (153): for(i=2;i--;)x.beginPath(x.fillStyle=R(i?w=255-(s=C(t*2)*127+128):s,0,i?s:w))|x.arc(960+80*S(i?π=t*5:n),540+80*C(i?n=π+3.14:π),80-30*S(t*8),0,7)|x.fill()
u/BirdsTweetCodersDweet

Inspired by the "second phase" in http://slicker.me/javascript/yinyang.htm. Thank you to Joey, Veubeke, and Athos from Discord for the last ~100 chars golf (I still golfed it from 480 chars to 240 though :P)
u/BirdsTweetCodersDweet

Putting a=S(t*2) also makes the color transition better, but that would be 142 chars
u/pythech

just golfed the a=S(t*2) version
u/pythech

golfed the 153 chars version too
u/pythech

I don't feel comfortable owning your work just because I could golf it though. I just put them as remixes but I can delete them if you want and you can repost it I guess (I don't use discord, bummer, maybe I should?).
u/joeytwiddle

I also feel uncomfortable owning your Debian logo. But that's how things go on Dwitter these days! u/lionleaf was talking about a remix-in-comments feature. Perhaps this is part of the motivation.
u/pythech

Cool idea! Yours was a proper remix though IMO, which involved changing the code and so on. Also great job on that btw :D
u/BirdsTweetCodersDweet

No problem pythech, just post the links here, and give credit :P
u/BirdsTweetCodersDweet

And yeah, join discord

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funwithstuff

function u(t) {

for(c.width|=i=1e3;i--;x.rotate(2*C(i-t/20)))x.fillRect(Z=i+S(i-t/50)*2e3,-Z*5,2,9e3)

Jun 10 2018 3:22 AM UTC

}// 85/140

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This is a remix of https://www.dwitter.net/d/8505 (awesome work by Xen).

u/firegodjr

For future reference, if you edit the code directly in the body of the original dweet, it'll give you the option to post it as a remix :D

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pythech

remix of d/8520 by u/pythech

function u(t) {

x.beginPath()
c.width|=0
for(i=t*1.2;--i>0;) {
x.arc(S(i)*C(t)*300+900,700,19+i**Math.min(t,20),0,9,1)
}
x.fill("evenodd")

Jun 10 2018 1:14 AM UTC

}// 122/140

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tunnels

u/lionleaf

#tunnel
u/iverjo

Nice idea
u/katkip

That's genius

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pythech

remix of d/8519 by u/pythech

function u(t) {

x.beginPath()
c.width|=0
for(i=100;--i>0;) {
x.arc(S(i+t)*C(t)*100+900,700,19+i**2.5,0,9,1)
}
x.fill("evenodd")

Jun 10 2018 12:40 AM UTC

}// 111/140

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u/iverjo

#tunnel

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pythech

remix of d/8490 by u/pythech

function u(t) {

x.beginPath()
c.width|=0
for(i=100;--i>0;) {
x.arc(S(i+t)*C(t)*100+900,400+500,19+i**2.5,0,9)
}
x.fill("evenodd")

Jun 10 2018 12:31 AM UTC

}// 113/140

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of course u/artfarnaa had to do these before me :D

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joeytwiddle

function u(t) {

for(c.width=i=600;i--;)x.beginPath(),k=150*t+i|i/8,k%150<50?x.ellipse(300,320-i/2,r=(5e4-(i-300)**2)**.5,r/3*(1-C(t/9)),0,0,7):0,x.stroke()

Jun 9 2018 6:21 PM UTC

}// 139/140

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Glitchy ellipsoid

u/joeytwiddle

Our planet is also a glitchy ellipsoid: https://www.pbs.org/newshour/world/how-to-he…
u/joeytwiddle

Replace 0,7 with 6,3.5 for just the front of the ellipsoid

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Xen

remix of d/8508 by u/firegodjr

function u(t) {

c.width=333
for(x.shadowBlur=i=30;i--;x.fillRect(155-i*6+S(i*t)*i/9,i*C(i-t*9),i*13,i*9))x.shadowColor='#'+frame

Jun 9 2018 3:21 PM UTC

}// 112/140

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Forbidden-Stairway2: Wrath of Hue

u/pythech

so dope
u/lionleaf

Awesome! #tunnel #stairs #color

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napoporitataso

function u(t) {

t||x.translate(960,540)
x.fillStyle=`hsl(${t*80%360},100%,65%)`
x.font='1700px serif'
x.fillText('%',0,0)
x.scale(1,.995)
x.rotate(2)

Jun 9 2018 8:43 AM UTC

}// 133/140

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u/flexelektro

learned something from the first line. nice.

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DirtyDan

function u(t) {

a=360
with(x)for(i=-1;i++<1;)for(j=0;j++<17;beginPath())arc(960,a+a*i,b=j*20,i?33/7:11/7,i?0:22/7,1),stroke(),fillRect(598+b+i*a,a,3,a)

Jun 9 2018 4:48 AM UTC

}// 135/140

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Wanted to fit a thicker line width in but I didn't see a way to. I think it looks okay anyway.

u/DirtyDan

Inspired by: https://old.reddit.com/r/GeometryIsNeat/comm…
u/pythech

it is possible, remixed it with the thicker lines
u/pythech

the trick is x.lineWidth
u/DirtyDan

Yeah, I just couldn't fit it in 140 chars

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