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: #ScaryMovies

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Jenky

function u(t) {

t||(n=c.cloneNode(0),c.parentNode.replaceChild(n,c),g=n.getContext("webgl"))
g.clearColor(.7+.3*S(t*4),0,0,1)
g.clear(16384)

Apr 19 2017 9:49 AM UTC

}// 124/140

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WebGL, anyone? :D

u/Jenky

Kinda sucks it takes so many bytes to set up, anyone have ideas to shorten?
u/magna

Just keep drawing the new, off-screen canvas onto the existing 2D context seems to work (though, is probably inefficient): https://www.dwitter.net/d/2535

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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) {

w=c.width=568;r=Math.random
t?0:(m=e=>z=[r()*w,r()*w/2])()
onmousemove=e=>{(e.x-z[0])**2+(e.y-z[1])**2<81?m():0}
x.arc(...z,9,0,7);x.fill()

Apr 7 2017 10:31 AM UTC

}// 139/140

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Try to hover over the circle! Doesn't work in fullscreen :'(

u/Jenky

Did make a more game-like version that did work fullscreen at 190 bytes, kept score and everything, but couldn't golf it any lower
u/Jenky

Also this one only works in Chrome again, thanks to e.pageX/pageY being slightly too long
u/donbright

c.width=568 t?0:(m=e=>z=[f=frame%568,(f<<4)%250])() onmousemove=e=>{(e.pageX-z[0])**2+(e.pageY-z[1])**2<81?m():0} x.arc(...z,9,0,7);x.fill()
u/donbright

that is a firefox version :)

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Jenky

remix of d/2393 by u/nowaythisisyourregisterform...

function u(t) {

with(c){t?0:onmousemove=e=>{x[e.buttons?'lineTo':'moveTo'](e.pageX*width/offsetWidth,e.pageY*height/offsetHeight);x.stroke()}}<!--Draw :D-->

Apr 2 2017 4:57 PM UTC

}// 140/140

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u/donbright

Loved it. Remixed. https://www.dwitter.net/d/2401
u/nowaythisisyourregisterform...

Good stuff!!
u/cantelope

Also remixed. Great job on the mouse handling! https://www.dwitter.net/d/2425

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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

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) {

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) {

t?(p=s[d%2]+=(d/2<1?4:-4),s[d%2]=p>800?0:p<0?800:p,x.fillRect(...s,8,8)):(s=[96,96],d=0,onkeyup=e=>{n='dsaw'.indexOf(e.key),d=n%2==d%2?d:n})

Mar 29 2017 1:19 AM UTC

}// 140/140

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WASD Snake!

u/Jenky

You can change the controls by editing 'dsaw' to any four letters, starting with whichever is to be "move right", going clockwise
u/donbright

the controls seem a bit unreliable on my sytem (firefox linux) but when it works, it is reaally cool, one of my favorite dweets ever. nice
u/donbright

remix https://www.dwitter.net/d/2350

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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 (138)