Dweets awesomed by u/docravendark

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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Joaozin003

function u(t) {

with(x){fillStyle=R(0,0,0,0.1)
fillRect(0,0,1920,1080)
translate(192,108)
rotate(-Math.PI/18)
scale(0.9,0.9)
translate(-192,108)}

Mar 24 2024 12:24 PM UTC

}// 129/140

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some tunnel thingy

u/cantelope

cool shading

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rsc

remix of d/29634 by u/rodrigo.siqueira

function u(t) {

c.width=1920;for(i=0;i<9;i++)for(j=0;j<9;j++){x.fillStyle=`hsl(${i*20+t*88},${(j+1)*15}%,50%)`;x.fillRect(i*213,(j-1)*213,213,213)}

Mar 17 2024 8:17 PM UTC

}// 131/140

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Remixed because the grey first row somehow triggered me

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rodrigo.siqueira

remix of d/27379 by u/intrinsic

function u(t) {

c.style.filter=`invert(`
for(c.width&=i=1e4;i--;x.fillRect(i%2?S(i*i+t/70)*2e3:906+C(i*i+t)*r*S(i),i%2?i:500+S(i*i)*r,4,3))r=250+S(t+i)*99

Apr 17 2023 1:33 PM UTC

}// 138/140

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Alien Artifact #starfield

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joeytwiddle

remix of d/3598 by u/joeytwiddle

function u(t) {

r=Math.random;if(t%2<.7){c.width=199
for(X=55;X<137;X++)~X&64||r()<.5?x.fillRect(X,9,1,78):0
x.fillText(Object.keys(this)[r()*215|0],55,99)}

Jan 22 2022 2:11 PM UTC

}// 140/140

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Little #barcode remix

u/joeytwiddle

2024/11/18: Object.keys(window).length === 256 on Firefox (249 in Chrome)

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ketolli

function u(t) {

a=1920;x.fillRect(0,0,a,a);for(i=0;i<3300;i++)x.fillStyle=R(-80+i/12),x.fillRect(a/2+C(t/5-i/7)*i/3,a/4+C(t/2-i)*i/4,99-i/40,99-i/40)

Oct 16 2021 3:14 PM UTC

}// 133/140

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Cosmic Horror #ScaryMovies

u/Gamer_Boy66

sick
u/sigveseb

wicked
u/davidsover

rad
u/SockTaters

gnarly

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rep_movsd

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁣𛡳𭁹𫁥𛡦𪑬𭁥𬠽𙱢𫁵𬠨𜱰𮀩𪑮𭡥𬡴𚀧𛁦𪑬𫀨𚐬𩡯𫡴🐧𞑥𫐢𙰬𩡩𫁬𥁥𮁴𚀧𣑏𥁈𣑁𣠧𛁒🐵𜀰𛀱𩐳𚐬𨐽𭀻𨐼𝰻𨐫🐮𜀹𛁬𪑮𩑔𫰨𦀬𦐩𚑦𫱲𚁘🐹𝠰𛁙👒𛁩🐱𞐻𪐭𛐾𜠻𚑘𚰽𤰨𨠽𭀪𪐩𚡃𚀮𞀹𚡩𚐪𚁌👒𛱩𚐬𦐫👃𚁢𚐪𤰨𜐱𚡩𚐪𣀊`.replace(/u../g,'')))

Oct 14 2021 4:00 PM UTC

}// 140/140

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Mothman #ScaryMovies

u/rep_movsd

#slowdraw
u/rep_movsd

Took a long time to find the magic constants
u/sigveseb

nice results

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ciaccodavide

remix of d/24054 by u/ciaccodavide

function u(t) {

for(m=Math,i=1e4*(t<1);i--;)r=m.random,X=r(),Y=r(),d=m.hypot(j=.5-X,k=.27-Y),x.fillRect(2e3*X,2e3*Y,69-d*345,1);c.style=`margin:${r()}px`

Oct 12 2021 8:45 AM UTC

}// 137/140

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The Ring #ScaryMovies

u/ciaccodavide

maybe I should have used margin:${r()/2}px for a subtler shake

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Pascal

function u(t) {

for(c.width|=i=200;i--;x.closePath())z=5+S(i+t)*C(a=i*i+t/9)*4,x.arc(1e3+3e3*(C(i+t)*C(a))/z,550-3e3*(S(a))/z,30/z,0,7)
x.fill()

Feb 24 2021 5:54 PM UTC

}// 128/140

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particles

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tomxor

remix of d/21734 by u/tomxor

function u(t) {

b='氀氀氀氀氀氀渀渀渀渀漀漀澀柀柠揸懿惿怿怏';eval(unescape(escape`𩡯𬠨𪐽𝠷𜠻𪐭𛐻𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱴𚠸𜀫𦐪𝱽𘀹𞐥𝐰𙑠𚑢𛡣𪁡𬡃𫱤𩑁𭀨𦐽𪐾🠵𚐾🠨𦀽𪐦𜐵𚐦𜐦𙡸𛡦𪑬𫁒𩑣𭀨𚁩𙠱𝠿𝀵𚱘𞠷𜰭𦀩🀼𝀬𜠴𚱙🀼𝀬𜐶𛀱𝠩`.replace(/u../g,'')))

Feb 21 2021 5:43 PM UTC

}// 133/140

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#retro #atari #GEM "Rainbow" #TOS 1.04 logo

u/tomxor

#pixelart
u/tomxor

Traced from a real TOS ROM running on Hatari to get the pixels right.
u/magna

Lovely!
u/New_Core

nice

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rodrigo.siqueira

remix of d/18852 by u/rodrigo.siqueira

function u(t) {

for(let i=2e3,f=(X,Y,n=9)=>Y?f(X*X-Y*Y-.9,2*X*Y,n+.2):x.fillStyle=`hsl(${n},80%,${S(n+7)*99}%`;i--;x.fillRect(i,t*90,1,999))f(i/490-2,1-t/6)

May 25 2020 3:06 AM UTC

}// 140/140

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Symmetry #Julia set for c = -0.9 + 0i, with colors inside the lake area.

u/Xen

worthy of wallpaper

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