Top dweets by u/metamero

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.

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Current theme challenge: #Food

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metamero

remix of d/14041 by u/metamero

function u(t) {

d=x.getImageData(0,0,c.width=320,180)
with(d.data)set(map(_=>Math.random()*255))
x.putImageData(d,0,0)

May 21 2019 2:14 PM UTC

}// 102/140

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color noise

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metamero

function u(t) {

d=x.getImageData(0,0,w=c.width=160,h=c.height=90)
d.data.set(d.data.map(_=>Math.random()*255))
x.putImageData(d,0,0)

May 21 2019 2:06 PM UTC

}// 116/140

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color noise

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metamero

function u(t) {

with(localStorage)eval(Ü+ü+`,F(Q=E(Q),29),F(b,a,1),F(0,s,1)):(P=Q=b=m=6,a=s=15,v=r=1,onkeydown=e=>{k=e.which;d=k&16?-1:1;k&1?P+=d:Q+=d})`)

May 20 2019 4:00 PM UTC

}// 138/140

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two player #pong (Q↑↓A vs L↑↓P) dweet split experiment [3/3] - full code at codegolf.tk/a/363

u/metamero

#game instructions: scroll down and back sometimes to begin. click on canvas and play with keys Q/A for one player and L/P for the other. also works when seeing/executing all the tree parts/dweets d/14017 d/14016 and d/14015 . or just scroll my page up to the last part u/metamero
u/metamero

for the game to work on this window you first have to open/run the other parts d/14017 d/14016

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metamero

function u(t) {

x.fill(new Path2D('M1310,540a350,350 0 110-1',x.fillStyle="#C02"))

May 17 2019 2:54 PM UTC

}// 66/140

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another #nosemicolons one statement flag of japan , using #path2d

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metamero

remix of d/12996 by u/metamero

function u(t) {

x.fillText(u,2,t*191)

Apr 4 2019 4:24 PM UTC

}// 21/140

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21B quinoire

u/metamero

#quine #moire

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metamero

remix of d/12993 by u/metamero

function u(t) {

x.strokeRect(0,0,t*=t,t)

Apr 4 2019 4:03 PM UTC

}// 24/140

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#moire

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metamero

remix of d/12977 by u/metamero

function u(t) {

x.fillRect(0,t*149,3e3,1)

Apr 4 2019 3:04 PM UTC

}// 25/140

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25B #moire

u/katkip

haha your right

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metamero

remix of d/12958 by u/Xen

function u(t) {

x.fillRect(~x.rotate(2),t,3e3,1)

Apr 3 2019 6:29 PM UTC

}// 32/140

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#moire

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metamero

function u(t) {

𣐮=new TextEncoder('utf-16').encode(code)[l='length']
𪁲=code[l]
𩰮=Array.from(code)[l]
throw 𣐮+'B ⇄'+𪁲+' units ⇄'+𩰮+' chars\n🐢💩'+'௸'[l]+'𣐮'[l]

Jan 18 2019 1:51 PM UTC

}// 140/140

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i'm a newcomer, but codegolf community must decide whether they like to count code size in UTF-16 characters, UTF-16 code units or bytes (or bits, since b and B are different units)

Show more comments…
u/metamero

#bug
u/f8f82804

I'm personally against exploiting a bug, so I prefer counting 16-bit chars.
u/metamero

u/f8f82804 unicode chars can be 16 or 32-bit (only). this bug is on front, not on server. or stated other way, this bug is on codegolf community policies.
u/metamero

speaking about bugs, this code actually counts UTF-8 chars (as they are represented in the page/editor). one can see this matter with the ௸ symbol (it's 2B long in UTF-16 but 3B in UTF-8). parameter 'utf-16' in TextEncoder is obsolete, see this note here https://developer.mozilla.org/en-US/docs/Web…
u/metamero

d/11906 is my method to count UTF-16 chars
u/metamero

*** this code actually counts bytes of the string encoded with UTF-8 (html context). d/11906 counts bytes of the string encoded with UTF-16 (javascript context). both count Unicode chars (or *code points*) right with Array.from(code).length. this is different from counting *code units* (16-bit unsigned elements).

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metamero

remix of d/11831 by u/metamero

function u(t) {

SyntaxError: unexpected token: identifier

Jan 15 2019 9:55 PM UTC

}// 41/140

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SyntaxError #quine (on firefox)

u/metamero

strange... if you copy to new dweet area both d/11831 and d/11832 works (anyway exceptions still occurs, and it is the quine on each browser)

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