Top dweets by u/Jenky

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: #Opposites

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Jenky

function u(t) {

w=c.width|=0
for(i=0;++i<99;)z=50+~~(i**2/80),x.font=z+`px a`,x.fillText(['🌲','🌳'][i%2],(S(i)*w+t*z*4)%(w+z)-z,z*5)

Mar 31 2017 11:58 AM UTC

}// 115/140

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Trees to go along with https://www.dwitter.net/d/2352 :D

Show more comments…
u/Jenky

I challenge someone to combine the two, golfing that is gonna be a doozy
u/z3vin

i love this can you explain: z=50+~~(i**2/80), specifically ~~ and **
u/nonce

~~ is Math.floor() and ** is Math.pow(), I do not understand why you need to floor? Why do you need an integer z? Also i*i is 1 char shorter than i**2 so you could shorten it to: z=50+i*i/80 am I missing something?
u/nonce

FWIW you can have a non integer font size
u/nonce

Golfed a bit, removed the pines (they are evergreen) and added a season: https://www.dwitter.net/d/2361 (autumn)
u/Jenky

Totally missed that, and didn't realise fonts could have floating px. Nice remix, too :D
u/sfz

floating px makes the rendering much slower but it's doable with a reasonable amount of entities
u/nonce

@sfz what about floating em? What is the perf like for that?
u/aemkei

Nice one! Really love the style.
u/aemkei

You can save ~9 bytes:
u/aemkei

for(w=c.width|=i=0;++i<99;)z=50+(i**2/80),x.font=z+px a,x.fillText(i%2?'🌲':'🌳',(i**7+t*z*4)%(w+z)-z,z*5)
u/tapgiles

Very nice!
u/Polyducks

omg haha are these emoji!? That's so smart!!!
u/joeytwiddle

#landscape #parallax #trees
u/micahcowan

#emoji
u/katkip

#perspective

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Jenky

function u(t) {

c.width|=0
t?onkeydown=e=>s=(e.which==8?s.slice(0,-1):(k=e.key).length==1?s+k:s):s=""
x.font="5em a",x.fillText(s+(t%.7<.4?'_':''),9,99)

Mar 29 2017 4:54 PM UTC

}// 136/140

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Type stuff! No newline support, unfortunately. :'(

u/Jenky

Also no insert-style editing, only way to erase is backspace. Old-school terminal/console style. 😎
u/donbright

lol... where are my Wordstar keyboard shortcuts
u/nonce

I love it that backspace works!
u/Polyducks

Blimey!

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Jenky

function u(t) {

n=512;r=6.28;for(i=t;i<t+r;i+=r/30){z=i+t;a=-S(i);b=-C(i);x.fillStyle=R(C(z)*n,C(z+r/3)*n,C(z+4.18)*n);x.fillRect(960+S(t)*a*n,n+b*n,9,9)}

Feb 26 2017 8:17 AM UTC

}// 138/140

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Rainbow experiment without 'hsv()'

u/donbright

this is really nice
u/sfz

purdy

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Jenky

function u(t) {

c.width=c.clientWidth
t?onmousemove=e=>m=[e.pageX,e.pageY]:p=m=[0,-9]
p.map((e,i)=>p[i]+=(m[i]-e)*.1)
x.font="2em a",x.fillText('🐱',...p)

Mar 29 2017 3:33 PM UTC

}// 137/140

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Him chase the mouse 🐭

u/donbright

is this one of the first dwitter games? ? ? ?

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Jenky

function u(t) {

r=210;X=Y=O=20;n=new Date/1e3
b=d=>{x.fillStyle=R(d?0:r);x.fillRect(X,Y,r,r);Y+=X<r*7?0:O+r;X=X<r*7?X+O+r:O}
for(i=2;i<5e9;i*=2)b(n%i>=i/2)

Mar 8 2017 1:17 PM UTC

}// 139/140

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Binary representation of number of seconds passed since 1 Jan 1970

u/donbright

super cool

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Jenky

remix of d/2522 by u/magna

function u(t) {

c.width|=i=0
x.font='50px monospace';((u+'').slice(0,t*4+S(t)*6)+`
|`[t*2&1]).split(`
`).map(r=>x.fillText(r,0,++i*50))

Apr 18 2017 4:57 PM UTC

}// 119/140

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You could keep it as +' |' instead of +<return>| but hey, we want to see the whole thing, right? :D

u/magna

Excellent use of `!

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Jenky

function u(t) {

c.width=320;d=new Date/1e3;r=9
a=v=>{x.beginPath();x.lineWidth++;x.arc(160,90,9*r--,0,v*.1047);x.stroke()}
a(d%60);a(d/60%60);a(d/3600%12*5)

Feb 28 2017 7:10 AM UTC

}// 140/140

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OS-time Arc Clock

u/donbright

love it!

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Jenky

function u(t) {

c.onmousemove=e=>m=[e.x*3.4,e.y*3.4];x.drawImage(c,C(t)*.2-2,S(t)*.2-2,1924,1084);x.fillStyle=`hsl(${t*600},99%,50%)`;x.fillRect(...m,8,8);

Mar 22 2017 11:37 AM UTC

}// 139/140

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Move the mouse around over the canvas for rainbows~

u/donbright

finally looked at this one in Chrome... breahtaking
u/donbright

breath even

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Jenky

function u(t) {

c.width=c.clientWidth
t?p.map(v=>{x[v[2]?'lineTo':'moveTo'](...v)}):p=[]
x.stroke()
onmousemove=e=>p.push([e.pageX,e.pageY,e.buttons])

Mar 31 2017 1:48 PM UTC

}// 134/140

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Basic drawing program, not sure if this has been done similarly already, should work cross-browser

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Jenky

remix of d/2256 by u/sfz

function u(t) {

t=t%((r=Math.random)()*.6+.6)>.01||new Audio(`http://www.soundboardcity.com/sounds/fart-machine/fart${~~(r()*9)+1}.mp3`).play()

Mar 25 2017 1:00 AM UTC

}// 127/140

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Guys I'm very mature

u/donbright

Me too. We are all very grown up and serious here on Dwitter. Your insightful analysis of methane emissions will prove a great contribution to climate science.
u/joeytwiddle

Well this made me laugh :)

dwitter.net | Jenky (142)