Dweets awesomed by u/systemwizard

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: #Opposites

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rodrigo.siqueira

function u(t) {

c.width^=0
x.font='8em"'
x.fillText('🐀',880+t,941+Math.ceil(t*8)%2*30)
for(i=0;i<9;i=i+.3)x.fillRect(900+C(i-t)*580,520+S(i-t)*480,140,30)

Nov 25 2018 3:09 AM UTC

}// 138/140

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Are we just rats on a wheel?

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pavel

function u(t) {

for(c.width|=i=w=540;i--;)for(x.beginPath(k=3);k--;x.fill())x.arc(p=i%32*99,q=(i>>5)*99,k?20:40,a=2*k+Math.atan2(1+S(t)-q/w,2+C(t/2)-p/w),a)

Nov 18 2018 10:14 PM UTC

}// 140/140

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Compass Needles #beesandbombs

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New_Core

remix of d/11008 by u/rnbw

function u(t) {

with(x)for(c.width|=w=i=274;i--;fill())beginPath(),arc(i%23*99,~~(i/23)*99,20*S(t*3+i%2*3.14)+49,0,7),fillStyle="#5b9"

Nov 17 2018 7:30 PM UTC

}// 118/140

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anotherkitten

function u(t) {

with(x)for(c.width|=j=0;j++<4;stroke()){f=(lineWidth=8-(t+j*2)%8)**4;beginPath();for(i=0;i++<6;)lineTo(960+S(a=t+i+j**2)*f,540+C(a)*f)}

Nov 13 2018 5:38 AM UTC

}// 135/140

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you guys ever play super hexagon?

u/rnbw

yeah!! (i mostly played the open source clone of it, though. gimmicky af, but really cool. made a few level packs for it actually)

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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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116

remix of d/10432 by u/116

function u(t) {

T=t/3
s=192
c.width^=0
for(j=99;j--;)
for(i=99;i--;)
x.fillRect(
s*(j+S(-T)*(i%4==1)/4+S(T)*(i%4==3)/4-1-(i%2)),
i*s/2,
s/2-4,s/2-4
)

Oct 14 2018 4:37 PM UTC

}// 134/140

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Parallels too?

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f8f82804

function u(t) {

with(x)for(i=c.width=396;i--;fillText('👻',99*(i?2+S(i%47+t):1),72*(i?2+C(t-i):3)))i||(font='5cm a',globalCompositeOperation='source-atop')

Oct 9 2018 5:44 PM UTC

}// 138/140

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ᴇ ᴛ ʜ ᴇ ʀ ᴇ ᴀ ʟ

u/aleamb

cool!
u/joeytwiddle

What the? :-O #ghost #halloween
u/katkip

woow
u/f8f82804

#emoji #composite

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donbright

function u(t) {

c.width=2e3
for(i=0;i<t*t;i++){Φ=Math.acos(1-2*i/t/t)
Θ=10.1664*i
x.fillRect(
500*(2+C(Θ)*S(Φ)*S(t)+C(Φ)*C(t)),
500*(1+S(Θ)*S(Φ)),9,9)}

Sep 7 2018 4:57 AM UTC

}// 135/140

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Evenly spaced points on a sphere, based on CR Drost's phyllotaxis sunflower cylyndrical equal area map in python: https://stackoverflow.com/questions/9600801/…

u/joeytwiddle

Useful! #sphere
u/Odog8

Love me a PHI sphere in the morning!

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username

remix of d/9628 by u/username

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(i=x.shadowBlur=112,n=999;i--;x.shadowColor=`hsl(${t%4.2*i*9},99%,50%`)x.fillRect(i*99+S(t)*n-n,n*C(t)*i/42,51,n)

Sep 2 2018 3:28 PM UTC

}// 140/140

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#glow stick, golfing: u/BirdsTweetCodersDweet u/fujimotos

u/BirdsTweetCodersDweet

Ayy, nice!

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firegodjr

function u(t) {

for(i=400;i--;x.fillStyle=`hsl(${(800*S(t)+i)},99%,50%`)
x.fillRect(900+S(i)*300,C(i)*300+500,5,200*S(t))

Aug 15 2018 2:32 PM UTC

}// 105/140

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