Dweets awesomed by u/Kirjava

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: #ScaryMovies

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KilledByAPixel

function u(t) {

eval(unescape(escape`󠁦󠁯󠁲󠀨󠁣󠀮󠁷󠁩󠁤󠁴󠁨󠁼󠀽󠁩󠀽󠀹󠀻󠁩󠀭󠀭󠀻󠀩󠁸󠀮󠁦󠁩󠁬󠁬󠁒󠁥󠁣󠁴󠀨󠀴󠀰󠀰󠀫󠁩󠀪󠀹󠀹󠀫󠁓󠀨󠁴󠀩󠀪󠀳󠀰󠀰󠀬󠀴󠀰󠀰󠀬󠀵󠀰󠀬󠀲󠀰󠀰󠀩`.replace(/uDB40%uDC/g,'')))

Aug 4 2020 8:18 AM UTC

}// 111/140

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Secret #default #crypto

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u/katkip

what?
u/Irratix

..... but how does that even work
u/Xen

nicely done
u/magna

HAX!
u/KilledByAPixel

small improvement: replace DB40%uDC/ with .{8}
u/tomxor

#steganography

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Kirjava

function u(t) {

throw[...Array(55)].map((_,r)=>String.fromCharCode(9605+S(t*9-r/(S(t)+2))*C(r/3)*4)).join``

Jun 27 2020 11:03 AM UTC

}// 91/140

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u/katkip

#waves
u/sigveseb

Very nice!
u/andrea270872

Wow! I was totally looking at the finger instead of the moon. great stuff

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rodrigo.siqueira

remix of d/19226 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=59)=>Y?f(T(X)*X-Y*Y+.2,X*Y-.9,n+.4):x.fillStyle=`hsl(${n*9} 90% ${S(n)*90}%`;i--;x.fillRect(i,t*60,1,i))f(i/1e3-1,1-t/25)

Jun 24 2020 7:13 PM UTC

}// 140/140

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Icy vortex #spiral #fractal

u/Xen

Sexy!
u/tomxor

wow noice

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼🐰𛁩🐨𪀽𝐴𜀩𚠲𞱩𛐭𞰨𦠽𚁩𛰶𝁼𜀩𛰳𛑴𚠲𙐱𚐾𜀦𙡸𛡦𪑬𫀨𮀮𨑲𨰨𞐶𜀫𚁩𙐸𛐳𛠵𚐯𦠪𫠬𪀫𚀨𪐯𞁼𜀩𙐸𛐳𛠵𚐯𦠪𫠬𜠰𜀯𚀱𚱚𚐪𚠲𛀰𛀷𛁸𛡢𩑧𪑮𤁡𭁨𚀩𛁸𛡦𪑬𫁓𭁹𫁥👒𚁮𚱓𚁚𚱴𚐪𫠬𜀬𫠬𛠴𛱚𛱚𚐩𚐩𫠽𪀯𜠫𤰨𭀪𜠩𚡨𛰳`.replace(/u../g,'')))

Jun 7 2020 3:50 AM UTC

}// 140/140

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https://codegolf.dweet.net/a/445

u/cantelope

lol https://codegolf.dweet.net/a/446
u/cantelope

a new URL, for now :D https://whr.rf.gd/codegolf/?i=/a/446

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pavel

function u(t) {

with(x)for(i=999;i--;fillRect(~setTransform(s=24e3/i,0,0,4*s,960-i+9*s*C(a=i+60*t),540+8*s*S(a)),~rotate(T(a*a)),2,2))fillStyle=R(9,i/4,i/3)

May 4 2020 7:34 PM UTC

}// 140/140

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Underwater #cavern

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u/KilledByAPixel

sick
u/KilledByAPixel

looped https://twitter.com/KilledByAPixel/status/12…
u/pavel

One trick here is f();g();h(-1,-1) is the same as h(~f(),~g()) when f and g return a falsy value, undefined in this case.
u/pavel

Notice how none of the distance variables are based on time, only angles are, yet the distances are changing and nothing is rotating...
u/pavel

Try making the moving a little faster :)
u/pavel

After I wrote this I looked for other dweets using a similar technique and this is the earliest one I've found, and it includes an explanation d/10212
u/KilledByAPixel

Amazing work! I have not seen the ~ before, will be using it a lot now. I tried to explain the 60*t trick in one of my blog posts, https://frankforce.com/?p=7160
u/pavel

That is an amazingly detailed explanation with great visual aids.
u/pavel

To clarify your explanation, any integer time works. 60*t is naturally an integer (ish). frame is one char longer without numerical errors. In general, (n*t|0) works for any n.
u/AndrewK

privet
u/katkip

masterpiece
u/joeytwiddle

I think this also counts as a #tunnel
u/Qwitter

Awesome!

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pavel

remix of d/18153 by u/Kirjava

function u(t) {

with(x)for(beginPath([X,Y=X,r=200,a=2]=u[T=-~T]||[999]),fillStyle=R(i=4,3e3/r);i--;fill())lineTo(...u[2*T+i]=[X-C(--a)*r,Y+S(a)*r,r*.8,a-9])

Apr 7 2020 3:38 AM UTC

}// 140/140

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#tree #waitforit #uncompressed

u/pavel

This is a breadth-first traversal of a binary tree, one frame at a time. The tree is maintained in a 1D array (2n+i notation) that I simply iterate left-to-right. The loop does double-duty for drawing the current node and inserting the children. The shape has four corners so the loop runs four times and inserts four children: 2n+0, 2n+1, 2n+2, 2n+3. My mind was blown when I realized no extra code was needed to prevent the adding of the extra children because the first two children of the next iteration will overwrite them!
u/joeytwiddle

#broccoli
u/katkip

interesting
u/pavel

https://i.imgur.com/FZ9Whj4.png

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Kirjava

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚐨𩀽𚁛𫀬𩑝𛁦𛁮𛁯𚐽🡻𪑦𚁯🀹𚑻𩡯𬠨𬀽𦱢𩑧𪑮𤁡𭁨𚁦𪑬𫁓𭁹𫁥🐢𘰱𘠫𫰫𜀩𧐬𪐽𝀻𪐭𛐻𚑬𪑮𩑔𫰨𛠮𛡰𦱩𙐲𧐽𦱬𚱓𚁣👩𚱮𚐪𩠬𩐫𠰨𨰩𚡦𧐩𞱦𪑬𫀨𚐬𬀮𫑡𬀨𚁩𛁬𚐽🡤𚁩𛀮𞀪𩠬𫠪𚁬🰱𛠱𞠮𞀩𛁯𚰱𚐩𯑽𚐨𦰱𩐳𛀱𩐳𧐬𜠴𜀬𜠮𝰬𜀩`.replace(/u../g,'')))

Apr 5 2020 11:47 PM UTC

}// 140/140

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#tree

u/96W

beautiful!

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼👪🐳𞀻𪠭🐲𞰩𩡯𬠨𭰽𪐽𜐱𞀻𪐭🐲𞱸𛡢𩑧𪑮𤁡𭁨𚁸𛡳𭁲𫱫𩐨𚐩𚑛𩀽𚁶👩𙐴𚐿𪠺𪐬𩀫𜡝𛡭𨑰𚁫🐾𮀮𫁩𫡥𥁯𚀹𝠰𚱓𚁰🐨𭠿𪐺𪰩𛰹𛠲𜰫𭀩𚠨𩠽𭠿𪰺𪠫𭀪𞐥𜠩𛰨𦠽𭰫𠰨𬀩𚡦𚠳𚐪𜡥𜰬𚀵𞀭𩠩𚠪𜰯𦠭𭰬𮀮𫁩𫡥𥱩𩁴𪀽𝐱𜠯𦠩𚐻`.replace(/u../g,'')))

Apr 4 2020 10:31 AM UTC

}// 140/140

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#vortex #d3

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Kirjava

function u(t) {

eval(unescape(escape`𪑦𚁴𯁼𚁓👱🐰𛁯𫡫𩑹𭑰👟🐾𮱱🐰𛁓𧠽𜑽𚐬𘑱𚑦𫱲𚁱👔👴𛁬👳🐢𘠬𪐽𜰸𞱩𛐭𞱲🐶𚡍𨑴𪀮𬡡𫡤𫱭𚀩𛁮🐰𯁲𛁬𘐽𚁬👮𙐳𚐿𬰫🐢𤡆𥑌𠡄𘡛𫡝𚰢𘀧𜠢𦰰𯀳𚠨𬠭𫠩𧐺𜀩𞱱𙠦𘑓𯁼𚁸𛡦𪑬𫁔𩑸𭀨𬰬𨰮𭱩𩁴𪀽𛐱𛀹𚐬𮀮𩡩𫁬𥁥𮁴𚁴𛑔𛀰𛀱𞀩𚐻`.replace(/u../g,'')))

Apr 2 2020 11:35 PM UTC

}// 139/140

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Rubik's Cube scrambler and timer - press a key to start/stop

u/AO

very nice done tried the timer got a 17.01 sec
u/katkip

haha! nice

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function u(t) {

c.width=1920
x.fillRect(0,0,1920,1080)
for(i=0;i<1980;i++)
x.fillStyle=R(S(t)*i,T(t)*i,C(t)*i)
x.font='5in"'
x.fillText("AO", S(t)*i, 700);

Apr 2 2020 10:56 PM UTC

}// 139/140

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