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: #ScaryMovies

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rodrigo.siqueira

remix of d/31658 by u/rodrigo.siqueira

function u(t) {

x.save(c.style='filter:sepia()invert()')
x.globalAlpha=.1
x.translate(t*88-240,760)
x.rotate(-t/5)
x.fillRect(200,0,9,2500)
x.restore()

Apr 25 2024 11:27 AM UTC

}// 135/140

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Blue flame (it takes 25 seconds to complete) #light

u/cantelope

#slowdraw

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LimeLaser

function u(t) {

f=60*t|0
u=f/1080
v=1-u
w=(b,c,d)=>255*(3*v*v*u*b+3*v*u*u*c+u**3*d)
x.fillStyle=R(w(0,1,1),w(.7,1,0),w(1,0,0))
x.fillRect(0,f,2e3,1)

Apr 28 2024 4:35 AM UTC

}// 132/140

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Bezier Sunset Gradient

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KilledByAPixel

remix of d/31655 by u/BriSeven

function u(t) {

c.width|=0
x.font='4in"'
x.transform(1,0,a=-T(t/2),1,960,540)
x.transform(1,S(t),0,1,0,0)
x.transform(1,0,a,1,0,0)
x.fillText('🐈',-299,99)

Apr 26 2024 6:28 PM UTC

}// 138/140

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3 Skew Rotation 🐈

u/mariofangt

meow

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BriSeven

remix of d/31655 by u/BriSeven

function u(t) {

eval(unescape(escape`景爨挮睩摴株㴱ⱷ㴱㘬栽⡩ⱷⱨ⤽㹓⡩⭷⤪㤪䌨栩⩃⡴⼴⥼〬椽㔴㭩ⴭ㬩景爨樽ㄲ㭪ⴭ㬩欽栨〬椬琩ⱬ㵨⡫ⱪⱴ⬲⤬砮晩汬剥捴⠴〰⬨椫氩⩷ⰴ〰⬨樫栨氬椬琩⭫⤪眬椯㌦ㄦ♷ⱷ)`.replace(/u(..)/g,"$1%")))

Apr 25 2024 8:56 AM UTC

}// 127/140

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3 Skew melting dance #default

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rodrigo.siqueira

remix of d/31651 by u/danny@hille.dk

function u(t) {

w=260
c.width=520;for(i=4e4;i--;)
x.fillRect(X=(i%w)*2,Y=i/130-5,C(t+S(Y/99-S(X*Y+t*3+1/t)/5)/20*Math.hypot(X-260,29))*2,2)

Apr 28 2024 12:29 AM UTC

}// 123/140

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katana

function u(t) {

c.width=1e3;a="";x.font="70px s"
for(k=10;y=--k*(1+t/8);y%6.2832<.3&&(a=k))x.fillText(k,470+180*C(y),290+180*S(y))
x.fillText(a,470,290)

Apr 26 2024 8:22 AM UTC

}// 136/140

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Xen

remix of d/31665 by u/lewdev

function u(t) {

t?c.width=65:(a=[..." "],b="❌")
a.map((d,i)=>x.fillText(d,i%3*22,~~(i/3)*12+9))
c.onclick=e=>a[~~(e.x/200)+~~(e.y/112)*3]=b=(b=="❌"?"⭕":"❌")

Apr 26 2024 12:53 PM UTC

}// 140/140

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Golfed to fit, shoutz to lewdev

u/lewdev

😳👏👏👏 Damn.. without compression too
u/lewdev

#tictactoe

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taupelink

remix of d/31673 by u/taupelink

function u(t) {

eval(unescape(escape`朽渽㸨⠨愽堥渭港㈭夥㈫ㄩ⼨戽夥渭港㈫堥㈭ㄩⵡ⩡ⵢ⩢⤪⨲⤪⨮㌥㍼〻景爨椽ㅥ㐻椭ⴻ砮晩汬剥捴⠲㐰⬹㘪堬㘰⬹㘪夬木㔩ⱴ㰶⤩堽椪琥ㄵⱙ㵘⩩┱〬砮晩汬却祬攽嬧⍅㜶㌧Ⱗ⌰㌶㈧Ⱗ⌲㡂㐧嵛木㄰⥝`.replace(/u([^D].)/g,'$1%')))

Apr 28 2024 7:27 PM UTC

}// 140/140

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d/31676 Modulariff 2

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taupelink

remix of d/31648 by u/taupelink

function u(t) {

eval(unescape(escape`昽瘽㸨㈪瘥ㄲ⵶┶⵶⼲┲ⴲ⤪⨲⼲㭧㵮㴾昨堯温⭦⡙⽮⤦㌻景爨椽ㅥ㐻椭ⴻ砮晩汬剥捴⠲㐰⬴⩘ⰶ〫㐪夬木ㄩ幧⠲⤬㈪⨭琩⥘㵩⩩⩴┳㘰ⱙ㵘⩩┲㐰ⱸ⹦楬汓瑹汥㵛✣䐵㔧Ⱗ⍁䉄✬✣ㄳ䄧Ⱗ⌴㄰❝孧⠵⥝`.replace(/u([^D].)/g,'$1%')))

Apr 26 2024 4:53 AM UTC

}// 140/140

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d/31667

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taupelink

remix of d/31648 by u/taupelink

function u(t) {

eval(unescape(escape`朽渽㸨⠨⡘╮⵮⼲ⵙ┲⬱⤪⡙╮⵮⼲⭘┲ⴱ⤩⤪⨲⤪⨮㌦㌻景爨椽ㅥ㐻椭ⴻ砮晩汬剥捴⠳㈰⬳㈪堬㘰⬳㈪夬琼㔬木ㄵ⤩⥘㵩⩩⩴┴〬夽堪椥㌰ⱸ⹦楬汓瑹汥㵛✣㔸䐶✬✣䙃㜲✬✣ㄶ㌱✬✣㑂䘴❝孧⠱〩崠`.replace(/u([^D].)/g,'$1%')))

Apr 27 2024 6:06 PM UTC

}// 140/140

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Modulariff 1

u/taupelink

d/31673