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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vinca

function u(t) {

for(c.width|=i=1800;i--;)x.fillRect(400+(X=i/200|0)*99+S(t+i/3e3)*200,500-i%200,50+(a=S(i/20|t/2+S(X/3)))*30,S(a+t/2))

May 12 2019 1:43 AM UTC

}// 118/140

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#default

u/iverjo

Some of those blocks look like letters ^^ My brains is trying to read it as a word

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katkip

function u(t) {

f=(X,Y,s=X*(z=T(t)),p=(q=s/2)/2)=>{x.fillRect(X-q,Y-q,s,s),x.clearRect(X-p,Y-p,q,q),s>9&&f(X+p*C(t),Y+p*z,q,f(X-p*C(t),Y-p*z,q))}
f(960,540)

May 11 2019 4:28 PM UTC

}// 140/140

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Thanks to u/Xen for golfing 16 bytes #fractal #infinite

u/iverjo

#trippy

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KilledByAPixel

function u(t) {

eval(unescape(escape`景爨椽〻椼ㅥ㌻砮晩汬⡰⤩砮獨慤潷䉬畲㴹㤬砮獨慤潷䍯汯爽砮晩汬却祬攽刨椯㈬椥㌰〬椥㈵㔬椩Ɒ㵮敷⁐慴栲䐨⤬瀮慲挨匨椩⨲㄰〭㤹Ⱘ匨椪椩⨲攵⭴⨨椫㌹㤩⼸⤥ㄲ〰ⴹ㤬娽椫⬿ㄹ⬱㤪匨椪椩⨪㤺ㅥ㔬〬㜩`.replace(/u(..)/g,"$1%")))

May 13 2019 4:13 AM UTC

}// 140/140

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⚠️ Caution Wet Paint ⚠️

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Xen

remix of d/13822 by u/WasifBoomz

function u(t) {

x.strokeRect(960-(a=t*99),540-a,a*=2,a)

May 14 2019 5:26 PM UTC

}// 39/140

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u/metamero

same with 1B less, because i know you like to byte-- x.strokeRect(960-(t*=99),540-t,t*=2,t)
u/Xen

we need a byte shooter game

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KilledByAPixel

function u(t) {

x.font="83em'";for(i=200;i--;x.fillText("☯",390+(Q=800*S(i*t/99))*S(i),1e3+Q*C(i)))x.fillStyle=`hsl(${29*t+9*i},99%,${i?50:99}%,${i?.02:.2}`

May 12 2019 7:48 AM UTC

}// 140/140

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WasifBoomz

function u(t) {

x.fillStyle="gray"
x.arc(960,740,400,0,10)
x.arc(960,280,80,0,10)
x.fill()
x.fillRect(260,590,1400,50)
x.clearRect(935,230,50,50)

May 14 2019 11:51 AM UTC

}// 130/140

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u/joeytwiddle

BB-8

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KilledByAPixel

remix of d/13778 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`挮睩摴栽㈴〻砮獨慤潷䉬畲㴹㭸⹳桡摯睃潬潲㴢⌰〰∻砮晩汬却祬攽∣䕆䘢㭦潲⡩㴵〰㭩ⴭ㭰㵮敷⁐慴栲䐨⤬瀮慲挨⡓⡩⤪ㅥ㤭㄰⩓⡴⭩⤩┳〰ⴳ〬⡩⨹⵴⩩⼹⤥㈰〭㌰Ⱘ⡩┹㤩⼲㔩⨪㈬〬㜩ⱸ⹦楬氨瀩⤻`.replace(/u(..)/g,"$1%")))

May 12 2019 8:53 PM UTC

}// 138/140

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Bubbles

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username

function u(t) {

t?onclick=_=>Y?0:Y+=h:X=Y=9
c.width|=onkeydown=_=>X+=_.which==39?42:-42
x[$='fillRect'](0,1e3,2e3,h=197)
x[$](X,1e3-h*2-(Y=Y<9?0:Y-9),h,h*2)

May 12 2019 8:17 PM UTC

}// 140/140

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Dwitter jump and run, literally. Use arrow keys to run and tap to jump!

u/KilledByAPixel

That's really cool, mini mario! maybe it would be smaller to put jump on the up arrow key
u/username

it would be, however, it would not be possible to hold down an arrow key and jump at the same time and that annoyed me a lot

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pavel

remix of d/13601 by u/pavel

function u(t) {

c.width|=f=(X,Y,Z,d,o=d<7&&5)=>{for(x.fillRect(960+1e3*X/Z,1e3*Y/Z,s=6/Z/Z,s);o--;f(X+R*S(a=t+11*o),Y+R,Z+R*C(a),d+1))R=o&&2**-d}
f(0,0,1,2)

May 8 2019 6:02 AM UTC

}// 140/140

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#sierpinski #pyramid

Show more comments…
u/KilledByAPixel

Wow!
u/Jezza

So great!
u/iverjo

Impressive! #d3
u/katkip

cute
u/rodrigo.siqueira

They said it was impossible. But Pavel did it anyway and here it is.
u/KilledByAPixel

This one was worth of an awesome gif... https://imgur.com/gallery/oHiQizL
u/f8f82804

#perspective
u/KilledByAPixel

reddit says hi https://www.reddit.com/r/perfectloops/commen…
u/katkip

Top of the month
u/yukulele

shouldn't it have a triangular base?
u/pavel

That would be a tetrahedron. Pyramids usually have a square base.
u/vain

So wonderful! Amazing work!

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vinca

function u(t) {

for(t||(Y=0),X=2e3;X--;)x.fillStyle=R(r=255*S(1/S(X/99)+1/C(Y/20)+t),r*S(t)/5),x.fillRect(X,0,1,5);x.drawImage(c,0,5),Y++

May 9 2019 1:23 PM UTC

}// 121/140

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