Dweets awesomed by u/lionleaf

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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MrOpposite

function u(t) {

s='';for(a of'挮睩摴栽ㄹ㈰㭦潲⡩㴰㭩㰹㭩⬫⥸⹦楬汒散琨㐰〫椪㄰〫匨琩⨳〰ⰴ〰ⰵ〬㈰〩')s+=String.fromCharCode((p=a.charCodeAt())>>8,p&255);eval(s)

Feb 25 2017 1:51 PM UTC

}// 110/140

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This is an attempt at a byte packing algorithm, which packages two bytes into a single JS character.

Show more comments…
u/MrOpposite

It works, but it's footprint is too large to work in 140 characters. The algorithm itself is 75 characters, we need sub 70 characters to make a character profit.
u/MrOpposite

Feel free to remix if you figure something out that can reduce it even further
u/xem

Hello sir ! As a matter of fact, we can :) during the past years @subzey, @fakeunicode and I (@MaximeEuziere) have built a solution allowing to store 194 ascii js chars in 140 characters, including the unpacking and the eval. The decoder is 43b long. All the details are here: http://xem.github.io/obfuscatweet/. Cheers
u/MrOpposite

@xem Actually, those are encoded as "multicharacter"-characters. I only work with UTF-16, and thus fit 2 bytes into a single character without making <string>.length "see" my extra characters.
u/MrOpposite

<string>.length *
u/xem

Ah okay. Here's a version 1b shorter: eval('挮睩摴栽ㄹ㈰㭦潲⡩㴰㭩㰹㭩⬫⥸⹦楬汒散琨㐰〫椪㄰〫匨琩⨳〰ⰴ〰ⰵ〬㈰〩'.replace(/./g,a=>String.fromCharCode((p=a.charCodeAt())>>8,p&255)))
u/MrOpposite

Ooh, clever!
u/sigveseb

#compressed #default

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iverjo

remix of d/1278 by u/iverjo

function u(t) {

c.width^=0;for(i=5e3;i--;)d=C(p=t+i/3e3+i%4/.637)-S(p),x.fillStyle=R(a=74*d+74,i/t),d>0&&x.fillRect(960+199*S(p)+400*S(t+i/6e3),i/4,199*d,1)

Feb 25 2017 12:55 PM UTC

}// 140/140

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As suggested by donbright

u/iverjo

#twister

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5Mixer

remix of d/1293 by u/5Mixer

function u(t) {

w=c.width=2e3
o=0
while(o++<9){l=r=o
x.fillStyle="#"+o*22
q=t*o*20
while(l<w+q){r=r*9e2%23e4
s=.7*r/w
x.fillRect(l-q,w/2-s*9,s,r)
l+=s}}

Feb 25 2017 12:43 PM UTC

}// 137/140

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5Mixer

function u(t) {

w=c.width=2e3
k=['╚','╔ 	','╝','╗']
x.font="50pt o"
for(n=0;n<800;n++){a=n/20
a-=a%1
x.fillText(k[(a%2*2+n%40+1)%4],(t*99+a*50)%w,n%20*50)}

Feb 25 2017 12:43 PM UTC

}// 139/140

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Wanted to see if I could use the box ascii characters for something. Drawing text takes up a lot of characters, but it turned out okay :D As a bonus, removing the '+1' on the final line makes the pattern squares!

u/5Mixer

Edit: Nope. Some golfing apparently means that isn't true anymore lol.
u/Xen

w=c.width=2e3,x.font="40pt'";for(n=369;n--;)x.fillText(['╚','╔','╝','╗'][(n/20|0%4*3+n%40)%4],(n*t*t)%w,n%20*50)

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walsh9

function u(t) {

T=t*60|0,d=T%64*33,e=(T>>6)*36,s=d<1||Math.random()>.5&&e>1,f=s?8:33,g=s?36:8,x.fillRect(d,e,f,g),x.lineWidth=16,x.strokeRect(0,0,1920,1080)

Feb 25 2017 8:04 AM UTC

}// 140/140

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u/donbright

hey that is super cool
u/sigveseb

reminds me of the old C64 BASIC maze: http://www.slate.com/content/dam/slate/artic…
u/walsh9

I'm using this 'binary tree' maze algorithm: http://weblog.jamisbuck.org/2011/2/1/maze-ge…

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5Mixer

function u(t) {

w=c.width=2e3
o=0
while(o++<9){l=r=o
x.fillStyle="#"+o*22
q=t*o
while(l<w+q){r=(r*9e2)%23e4
s=r/(w*99)*70
x.fillRect(l-q,w/2-s*9,s,r)
l+=s}}

Feb 25 2017 5:26 AM UTC

}// 140/140

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Cityscape! At 170 chars I had it moving quickly, and with much, much better randomisation. To see the paralax work, multiply q=t*o by 10. I would have loved to have had a little car emoji too, but oh well, I'm still new. I've spent way too long trying to shorten this lol.

u/SpecialAgent

You can remove the brackets around r=(r*9e2) to gain an extra two characters, since both * and % fall in the same operator precedence group, then q=t*9 works. Good dwit!
u/Renaud___

s=r/(w*99)*70 can be replaced by s=.7*r/w too it seem
u/SpecialAgent

correction, q=t*o*9 works
u/lionleaf

If you change the dweet itself you can post directly and it becomes a remix. Post the moving one!
u/5Mixer

Woah, thanks for the replies guys. I looked for ages and didn't spot those chars :) Remixed it moving faster.

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hamptonio

remix of d/134 by u/icecuber

function u(t) {

r=Math.random;q=1;for(i=36;i--;)for(j=12;j--;)q+=.5-r()/2,x.setTransform(C(t+j),S(t+i),-S(t+j),C(t+i),i*66,j*99),x.fillRect(-9,-30,q/2,10)

Feb 25 2017 4:06 AM UTC

}// 138/140

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u/magna

I want a curtain like this in my living room!
u/joeytwiddle

That took me to http://www.pouet.net/prod.php?which=564#fukw…

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donbright

remix of d/1283 by u/sfz

function u(t) {

c.width=960;i=t*t;j=19968+i;j>40959?s="fin":s=String.fromCharCode(j),x.font="500px Arial";x.fillText(s,250,450);x.fillRect(0,0,50,i*.026);

Feb 25 2017 3:29 AM UTC

}// 138/140

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Basic Unicode Chinese Character block 4E00–9FFF, (this is not all Chinese characters!). Progress bar on the left.

u/donbright

approx 20,900 characters
u/lionleaf

Wow! I mean, I know there are lots, but this just makes it seem incredible. To be fair I guess scrolling through and english dictionary would look pretty cool too (even though it's not quite the same)
u/Kalanchoe

oh, wow! I love it
u/donbright

thx
u/donbright

#unicode

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donbright

remix of d/1232 by u/iverjo

function u(t) {

a=2e3;c.width=a;for(i=2*a;i--;)p=S(t)*i/a+i%4/.637,d=C(p)-S(p),d>0&&x.fillRect(a/2+99*(S(p)+S(t)),i/4,99*d,1/(d+1)),x.fillStyle=R(i/9,d*a/8)

Feb 25 2017 1:54 AM UTC

}// 140/140

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u/iverjo

Nice :) Better colors than mine
u/iverjo

By saving golfing 2 characters I managed to make the twister bigger:
u/iverjo

c.width=a=2e3;for(i=2*a;i--;)p=S(t)*i/a+i%4/.637,d=C(p)-S(p),d>0&&x.fillRect(a/2+199*(S(p)+S(t)),i/4,199*d,1/(d+1)),x.fillStyle=R(i/9,d*a/8)
u/iverjo

A little more movement: c.width=a=2e3;for(i=2*a;i--;)d=C(p=S(t)*i/a+i%4/.637)-S(p),d>0&&x.fillRect(a/2+199*S(p)+399*C(t),i/4,199*d,1/(d+1)),x.fillStyle=R(i/9,d*a/8)
u/donbright

wow that is awesome!!! i really do miss how yours spins all the way around.
u/donbright

#twister

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iverjo

remix of d/75 by u/iverjo

function u(t) {

/* LOOK MA, I HAVE ENOUGH SPACE FOR A VEEERY LONG COMMENT! */
c.width^=0;for(i=24;i--;)x.fillRect(960+22*i*C(a=t*i/8),520+22*i*S(a),2*i,2*i)

Feb 25 2017 1:36 AM UTC

}// 140/140

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u/gormisdomai

This is so pleasing to watch!
u/iverjo

My comment is yuge. It is the largest ever. People love it bigly.
u/sigveseb

lol that comment tho
u/iverjo

Golfed: /* LOOK MA, I HAVE ENOUGH SPACE FOR A VEEERY LONG COMMENT! */ for(c.width+=i=0;i<48;i+=2)x.fillRect(960+11*i*C(a=t*i/16),520+11*i*S(a),i,i)
u/AstonC

Tremendous!
u/iverjo

#spiral

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