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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Current theme challenge: #Food

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unts-unts-unts-unts

function u(t) {

for(j=0;j++<80;)
for(i=0;i++<10;){
x.fillStyle=R(X=i*j%256,128*(1+S(j*t)),256-X)
x.fillRect(960+12*j*C(s=i*t/3),540+12*j*S(s),12,12)}

Feb 9 2018 3:41 PM UTC

}// 133/140

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u/dogspace

woahh!

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Agnes

remix of d/22738 by u/TGY

function u(t) {

t?c.width=2e3:a=[]
c.onclick=e=>(X=e.x-960)&(Y=e.y-540)&a.push([X*Y])
a.map((e,i)=>x.arc(960,540,e[0]*=.9,0,7))
x.fill('evenodd')

May 10 2021 1:47 PM UTC

}// 129/140

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Very cool idea by TGY, playing around with the concept

u/Agnes

You can even optimise this by adding a=a.filter(e=>e>0) if X*Y is replaced by (e.x-960)*(e.y-540), which I guess doesn't matter at all but feels better somehow if someone were to sit around clicking on this millions of times
u/aleamb

#interactive

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384.cz

function u(t) {

eval(unescape(escape`𭁼𯀨𥰽𪐽𜀩𛁷👏𨡪𩑣𭀮𪱥𮑳𚁷𪑮𩁯𭰩𦱗𧐬𨰮𭱩𩁴𪀽𞐹𛁸𛡦𫱮𭀽𘠱𫑭𘁭𫱮𫱳𬁡𨱥𘠬𮀮𬱣𨑬𩐨𛐳𛀳𚐬𪐽🐨𣀽𭰮𫁥𫡧𭁨𚐦𙠨𥰫𚰬𪐽𜀩𛁸𛡦𪑬𫁔𩑸𭀨𭰮𬱬𪑣𩐨𪐩𛡰𨑤𤱴𨑲𭀨𣀬𘠣𘠩𛀭𜰰𛀹𚐬𫱮𪱥𮑵𬀽𨐽🡻𭱛𪑝🐽𨐮𪱥𮐿𪐫𚰺𪐽𜁽`.replace(/u../g,'')))

Oct 6 2023 4:10 PM UTC

}// 137/140

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Reading Backwards - click on text and type the word. If you make a mistake, you've to type that word again. Tribute to https://js1024.fun/demos/2022/18/readme. #game

u/lewdev

Cool stuff. It breaks on capitalized letters though. Add a.keyCode==16?0: into the start of your onkeyup method, which allows the shift key to be pressed.
u/384.cz

Lewdew, here you are: d/28634

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ArthurThuczsec

remix of d/16349 by u/bencoveney

function u(t) {

for(i=200;i--;x.fillStyle=R(C(q)*i,S(-q)*i,S(q)*i))x.fillRect(980-i*4+C(q=i*t/9*t+i)*i,540-i*3+S(q)*i,8*i,6*i);

Aug 26 2021 6:17 PM UTC

}// 111/140

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natashag

function u(t) {

c.width=48
for(i=0;i++<48;)
for(j=0;j++<27;){
x.fillStyle=R((R*(C-x)+x)*140,(x*x*(x-x))*1,(1-S(t*t*t*(i+j)))*999)
x.fillRect(i,j,1,1)
}

May 5 2018 11:22 PM UTC

}// 135/140

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PotatoImaginator

function u(t) {

c.width=512
c.style.background='#000'
for(i=256;i--;)for(j=0;j<8*t;j++)
x.fillStyle=R(255-2*j,0,2*j),!(i&j)&&x.fillRect(2*i+j,2*j,2,2)

Mar 8 2023 1:16 AM UTC

}// 134/140

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Sierpinski Triangle #sierpinski #fractal

u/PotatoImaginator

Golfed with the help of Tomxor

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tomxor

remix of d/23413 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭀿𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀺𠐽𠠽𥐽𥠽𞀻𪐭𛐻𥀽𤰨𦀯𝠩𚱃𚁙𛰽𝠩𚱙🠸𚑸𛡦𪑬𫁒𩑣𭀨𦀽𪐥𭰬𦐽𪐯𭰬𜐬𥁼𤠼𜀩𛁡👘𛑁𛁢👙𛑂𛁒👡𚡡𚱢𚡢𛐲𝐬𥀦𤠼𜐦𙠨𥐫👒𚡡𛁖𚰽𤠪𨠩𞱁𚰽𥐯𭰫𭰬𠐥👷𛁂𚰽𥠯𭰬𥠫🐱𞀭𥠯𜱥𜰻`.replace(/u../g,'')))

Jun 28 2022 8:24 PM UTC

}// 129/140

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Smoler Impossible Marble #Physics

u/tomxor

-11 bytes: Eliminated the intermediate k, moved some coefficients around, and swapped hypot for square values which is actually more stable for intersection resolution. Now it will never stop jiggling :D
u/magna

WOW!
u/pavel

Currently traced pixel is part of the ball and part of the background therefore collision. Awesome trick. My first time seeing this.

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384.cz

function u(t) {

e=(_,$)=>{i=0,s="";for(x of _)s+=String.fromCharCode(x.charCodeAt()^($.charCodeAt(++i%$.length)+49));return s}
throw e("message","password")

Mar 28 2025 10:29 AM UTC

}// 140/140

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XOR Symmetrical cipher

u/cantelope

neat

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magna

remix of d/8080 by u/magna

function u(t) {

for(c.width|=i=389,x.fillRect(0,0,2e3,2e3);i--;x.fillText('🔵',i%26*80-S(a=t*2+i/2)*70,~~(i/26)*80+C(a)*70))x.scale(1,1-10**(S(t)-2))

May 11 2018 4:38 AM UTC

}// 132/140

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iznax

remix of d/17879 by u/KilledByAPixel

function u(t) {

c.width|=0
x.font="30cm LOL"
x.fillText("👓",200,900)
x.fillText("🌞",S(t/2)*2e3,1500)

Mar 10 2020 3:25 AM UTC

}// 84/140

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