Dwitter - javascript demos in 140 characters

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: #Food

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sybarita

function u(t) {

c.width=3333
c.height=3333
for(i=0;i<46;i++,x.fillStyle=R(i*6,200*C(3*t),255-(5*i)))x.fillRect(1500,920+20*i*S(2*t),i*25*C(2*t),8*C(t))

Dec 24 2019 4:04 AM UTC

}// 135/140

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rainbow spinning bars, first dweet bear with me!

u/Xen

onlyneed to set width, extra tasty byte ;-)
u/sybarita

thanks ya i realized that after i did these ones super big accidentally, since i had already set it super wide the bottom half of the canvas was empty so i just changed the height val instead of scaling all the other values cause im lazy. used your guide to get started playing with these btw, thanks for that!
u/Xen

omg really? glad it helped :-)

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Vladislav

function u(t) {

c.width=1000;for(i=1;i<190;i++){b=4.5*t+i;
x.fillStyle=R(0,230,0,1);x.fillRect(500+((i/65)%1)*C(b)*120,100+i*6%400,9,9);}

Dec 23 2019 10:23 AM UTC

}// 121/140

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u/Xen

nice
u/joeytwiddle

Reminding me of https://www.youtube.com/watch?v=L7XZ-BGNp4A How to decorate a tree in 10 seconds

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KilledByAPixel

remix of d/13860 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𭀿𨰮𭱩𩁴𪁼👯𫡭𫱵𬱥𫑯𭡥👥🐾𦀽𩐮𮀪𜰺𥰽𦠽𠐽𦱝𞱦𫱲𚁩🐹𞱩𛐭𞱗🡑𙡗🁑𚰵𜀦𦠾𠰦𦠼𜰰𜀿𠑛𪑝🐱𞠰𚑸𦱆🐧𩡩𫁬𤡥𨱴𙱝𚁑🐴𜀰𚱩𚡃𚱓𚁴𚐪𜰰𜀬𠰽𞐹𛀵𜀪𘑁𦱩𧐬𜠰𜀩𞱸𦱆𧐨𦀭𝀱𛀱𩐳𛁃𛁃𚐻𮁛𡡝𚁗𛁚👚🀭𠰿𚁗👘𛀱𜀸𜀩𞡚𛐲𜀬𜐹𛁃𚐻`.replace(/u../g,'')))

Dec 21 2019 6:48 AM UTC

}// 140/140

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#Default Invaders Remastered - Use mouse to shoot the evil defaults #interactive #game

u/joeytwiddle

Excellent
u/sigveseb

sweet

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Xen

remix of d/16961 by u/henrosaurus

function u(t) {

for(c.width|=i=90;i--;x.lineWidth=6)
x.arc(p=c.width/2,p/2,i*7,C(t)*i,i+i/S(t))
x.stroke()

Dec 24 2019 6:38 PM UTC

}// 90/140

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Xen

function u(t) {

for(m=t?0:8e4;m;)x.fillRect(0,0,!x.rotate(--m&-m&m/2?11:-11),!x.translate(1,0))

Dec 24 2019 3:54 AM UTC

}// 79/140

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79byte #dragoncurve with freeze and clean otherwise(75byte)

u/Xen

Ultra slow 60bytes? x.fillRect(0,0,!x.rotate(t&-t&t/2?11:-11),!x.translate(1,0))

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Xen

remix of d/16950 by u/ivylab

function u(t) {

for(i=f=1e3;i--;x.fillRect((S(3*t-i/f))*f*.95+1e3,i,9,1))
x.fillStyle=`hsla(${i/99+t*99},90%,50%,.2)`

Dec 23 2019 7:31 PM UTC

}// 101/140

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Had to play

u/Xen

#waitforit
u/katkip

#xweet

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KilledByAPixel

function u(t) {

eval(unescape(escape`𩡯𬠨𩠽𜡥𜰬𪐽𜀻𪐼𝐰𜀻𮀮𩡩𫁬𥁥𮁴𚁺🰧𧁵𜠷𝀴𙰺𦰢𣑥𬡲𮐢𛀢𦁭𨑳𘡝𦱩𛐱𧐬𞐹𚱩𚠹𞐥𩠫𪐪𤰨𭀫𪐩𛰷𛁺🰨𤰨𪐪𪐩𚠪𜠪𝑥𝐫𭀪𞐹𚐥𩠺𝐳𜀪𪐩𚑸𛡦𪑬𫁓𭁹𫁥👒𚁱🐨𮠽𪐫𚰾𜐩🰲𝐵𞠱𝐰𛁱𛁱𛀮𜠩𛁸𛡦𫱮𭀽𚁺🰲𚰹𚡩𛱦𯀰𞠴𜀩𚰢𩑭𘁩𫑰𨑣𭀢`.replace(/u../g,'')))

Dec 22 2019 6:58 PM UTC

}// 140/140

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And a happy new year...

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pavel

function u(t) {

for(c.width|=f=o=>4/(1+99**(o-(t+i)%3*8)),x.scale(i=60,i);i--;x.strokeRect(17-X,6+Y,2+X-f(8)+f(19),2+f(1)-f(14)-Y))X=f(7)-f(20),Y=f(2)-f(13)

Dec 18 2019 10:45 PM UTC

}// 140/140

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Oleg Frolov | Dribbble (sped up due to golfing)

Show more comments…
u/pavel

https://dribbble.com/shots/5836300-Loader-XL…
u/KilledByAPixel

👍
u/katkip

wow
u/katkip

good #loading
u/iverjo

This is cute
u/sigveseb

looks better sped up, too!
u/Leodude123

can i use this as a loading animation?
u/vain

Wonderfull animation !! <3

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Leodude123

function u(t) {

c.width=1920
var i=1
//while(true)
{
x.fillStyle = R(188,225*S(t),11,1)
x.fillRect(400+i*100+S(t)*300,400,500,500) 
i++
}

Dec 24 2019 11:40 PM UTC

}// 121/140

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How do I get rid of the lag?

u/katkip

You don't need permanent loops. That will timeout the frame. u(t) is already calling every 1/60 seconds
u/joeytwiddle

That's right. The website is already doing something like while(true) for you (actually requestAnimationFrame())
u/Leodude123

Oh

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pavel

function u(t) {

for(x.fillRect(0,0,i=2e3,i),v=540;Y=S(b=--i**3);x.clearRect(960+v*X/d,v-v*Y/d,Z*=6,Z))Y/=Z=1.2+C(++t)*C(b),X=S(t)*C(b)/Z,d=X*X+Y*Y+.1

Dec 19 2019 3:48 AM UTC

}// 133/140

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Black hole

u/Leodude123

wwwwwwwwwwwwooooooowwwww!!!!!!!!