Random dweets | Dwitter

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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dwardu

function u(t) {

navigator.getBattery().then(b=>{c.width=99
x[m='fillRect'](89,18,4,9)
ℓ=b.level
x[m](9,9,80*(b.charging?t%ℓ:ℓ),27)
x.strokeRect(9,9,80,27)})

Mar 3 2018 11:23 PM UTC

}// 140/140

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u/AnnanFay

Laptop only?
u/dwardu

Works on mobile/laptop, but on desktop appears as “100% & charging.” I would have liked to tackle this by modifying the expression to “ℓ<1&&b.charging?t%ℓ:ℓ”, but I couldn’t find a way to reduce a further 5 characters!
u/dwardu

Could be written as “ℓ<1&”, so 4 characters really.
u/AnnanFay

Hmm, on desktop-windows-firefox I'm just getting "navigator.getBattery is not a function"
u/AnnanFay

Ah, this would explain it: "From Firefox 52 onwards, the Battery Status API is only available in chrome/privileged code."
u/dwardu

Yes, after your comment I did some research and made this discovery too.

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Xen

remix of d/27880 by u/rodrigo.siqueira

function u(t) {

w=c.width=128;for(i=1e4;i--;)x.fillStyle=R(x.fillRect(X=i%w,Y=i/w-5,Math.min(s=Math.hypot(i%2*30+X-80,Y-40)/9,(X^Y/w**T(t))%3),s),Y,Y/s*5)

Jun 6 2023 11:04 PM UTC

}// 138/140

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Deep blue See

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96W

function u(t) {

for(c.width|=i=9;i--;)
x.arc(30+3320*S(t+i),530+30*C(t+i/.6),200,0,3),x.fill()
c.style.filter=`blur(20px)contrast(10)`

Feb 23 2020 3:16 AM UTC

}// 118/140

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how molecules actually work

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iverjo

remix of d/464 by u/iverjo

function u(t) {

for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1;x.fillRect(t*60,j,1,S(k/9))}

Feb 23 2017 5:10 PM UTC

}// 126/140

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Burning ship fractal. Feel free to play with the parameters to find other interesting locations in the fractal

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cantelope

function u(t) {

for(x.fillRect(0,0,i=(W=960)*2,i);i--;)x.clearRect(W+W/(Z=6+C(p=i/200+S(t)/(V=i/W*((Y=(i/50+t)%4-1)-3)/(2+Y))+t)*V)*S(p)*V,540+W*Y/Z,9,9)

Jul 15 2017 6:49 PM UTC

}// 137/140

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Special thanks to p01 for helping to golf this. <3

u/sigveseb

looks good!
u/donbright

fine work
u/joeytwiddle

#organic

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tomxor

remix of d/19162 by u/katkip

function u(t) {

f=(x,y,n)=>n?f(S(x*2+1)-C(y*2),C(x*2-1)-C(y*2),n-1):S(x+y)
for(n=8,i=n*1920;i--;)
x.fillRect(X=i%1920,Y=i/1920+n*t*60,1,f(Y/640,X/640,5))

Jun 17 2020 3:47 PM UTC

}// 137/140

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u/13thptr

nice and polished

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sukkamehu

remix of d/6718 by u/jonathan_b

function u(t) {

r=S(t),q=t%4*500,with(x)fillStyle=`hsl(${r*256},90%,50%,60%)`,beginPath(),arc(960+q*C(a=6*q+t),600+q*S(a),q/2+20,e=3+a,e+.8+r%1/3),fill()

May 21 2018 8:11 PM UTC

}// 137/140

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vinca

function u(t) {

c.width|=0,a=(X,Y,D,A)=>D&&(E=D*9,x.arc(X=X+3*E*C(A),Y=Y+E*S(A),E,0,7),x.closePath(),a(X,Y,D-1,A*1.2)),a(1e3,500,15,t),x.fill('evenodd')

Apr 6 2019 12:39 PM UTC

}// 136/140

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New_Core

remix of d/33222 by u/tzador

function u(t) {

for(c.width|=j=7;j--;x.beginPath(x.fill()))
for(i=57;i--;)x.lineTo((j*50+j*5*S(b=j%2<1?i-t:i+t))*S(a=i/9)+j*j*51,540+(j*50+j*5*S(b))*C(a))

Feb 4 2025 1:25 PM UTC

}// 138/140

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katkip

function u(t) {

eval(unescape(escape`𦀽𞐶𜀬𦐽𝐴𜀬𦠽𝀰𜀭𭀪𞀻𮀮𩡩𫁬𤱴𮑬𩐽𘠣𜀰𜀲𘠻𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛀲𩐳𛀲𩐳𚐻𩡯𬠨𪐽𞐻𪐭𛐻𚑸𛡦𪑬𫁓𭁹𫁥👠𪁳𫀨𙁻𦠪𜐰𜁽𛀹𞐥𛀵𜀥𚑠𛁸𛡦𪑬𫁒𩑣𭀨𦀭𦠯𝐬𦐭𦠯𝐬𦠯𝀬𦠯𝀩𛁘𚰽𠰨𦀫𦠯𞐩𚡚𛁙𚰽𤰨𦐫𦠯𞐩𚡚𛁚𛰽𭀠`.replace(/uD./g,'')))

Nov 27 2019 11:56 AM UTC

}// 133/140

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Zooming out from the solar system