Dweets awesomed 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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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Jezza

function u(t) {

c.width|=0;x.font='99px monospace';if(!t)p=3,a=2,o=0,q=2;p+=24/a/(a+1)/(a+3)/(a+=4);x.fillText((p+o).toFixed(15),9,99);if(p>q)p-=q,o+=q;q/=2

Jan 31 2018 10:32 PM UTC

}// 140/140

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I thought I'd see if I can calulate PI in 140 chars. Math.PI is 3.141592653589793, which is 15 decimal places. 15 decimal places is precise enough to calculate the circumference of the solar system (including Pluto) with an accuracy of a meter. The formula is Nilakantha's from the 15th century. You could also just print 245850922/78256779 but doing that doesn't seem much better than just printing Math.PI.

u/donbright

#pi #math

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Jezza

function u(t) {

if(!t)q=[];c.onmousemove=e=>q.unshift(e);c.width=window.innerWidth;for(i=0;i<50;i++)q[i]?x.fillRect(q[i].x+S(z=i+t*9)*5,q[i].y+C(z)*5,2,2):0

Jan 30 2018 3:15 AM UTC

}// 140/140

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Have a mouse around.

u/lionleaf

That's a fun one!
u/CtrlAltCuteness

Works on a Samsung Galaxy Note 4 with device's stylus and a web browser supporting the mouseover stuff.
u/joeytwiddle

#interactive

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magna

remix of d/6493 by u/magna

function u(t) {

x.fillRect(0,0,2e3,2e3);for(i=64;i--;)for(x.setTransform(1,0,0,1,i%8*240,(i>>3)*135),j=99;j--;)x.clearRect(120+C(t+j/4)*50,67+S(j*i)*50,3,3)

Jan 26 2018 1:14 AM UTC

}// 140/140

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Show more comments…
u/donbright

!!!!!!!!!!
u/donbright

man this is... unbelievable
u/aleamb

fucking awesome!
u/magna

thanks! there's a lot of room to play around with variations with this idea. go nuts!
u/sandstedt

Amazing!
u/zanella

I didn't know computers could do such thing. :D
u/rikardlindstrom

Wowwowowow
u/Qwitter

!!!!!!!!!!!!!!!!!
u/Qwitter

This makes me just eant to give up a qwit
u/sigveseb

Really nice :D
u/sigveseb

64-in-1 dweet value megapack ^^
u/diceroll123

how do i give you Dwitter Gold™️?
u/magna

I only take Dwittercoin, but thanks for the thought!
u/Qwitter

Have a Dwitcoin <svg height="40" width="40"><circle cx="10" cy="15" r="9" stroke="#999900" stroke-width="2" fill="#bfbf22" /><text x="7" y="20" fill="#cfcf00">$</text><text x="5" y="20" fill="#eeee00">D</text></svg>
u/bepisTM

wait what, dwitter comments support tags?
u/Qwitter

<del>no</del>
u/bepisTM

<span style="color:#f06">test</span>
u/Qwitter

<svg height="20" width="40"> <text x="5" y="10" fill="red" transform="rotate(30 0,0)">P</text> <text x="10" y="10" fill="red" transform="rotate(20 0,0)">A</text> <text x="15" y="20" fill="red" transform="rotate(-20 0,0)">S</text> <text x="20" y="35" fill="red" transform="rotate(-30 0,0)">S</text> </svg>
u/StarStep

pass
u/lionleaf

#multi_dweet #awesome #visualization
u/lionleaf

#multidweet
u/rodrigo.siqueira

A collection of Lissajous patterns
u/vain

Lissajous patterns in 140 chars? top!

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@no_identd

remix of d/6447 by u/DirtyDan

function u(t) {

c.width=1920
for(i=b=540;i>0;i-=.5)x.beginPath(),x.ellipse(a=960+i*S(t+i*2.5),((i**2.214297)/i+i+200)/2,i/b*200,i/b*50,0,0,44/9),x.stroke()

Jan 25 2018 1:56 AM UTC

}// 139/140

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This one has an illusion built in. You can mentally switch the rotation of what you see, which you may perceive as a 3D shape.

u/@no_identd

Also, if you add x.globalCompositeOperation='xor', like u/DirtyDan did here: https://www.dwitter.net/d/6430, you can STILL mentally flip it.
u/@no_identd

Actually, I've noticed, u/DirtyDan's original of this also has this illusion built in!

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ellisk1

function u(t) {

c.width|=z=4+C(t);r=89;f=a=>x.lineTo(250*z+r*C(q=a-S(t+a)/3)*z,99*S(2*t)+r*z*(1+S(q)));f(0);f(1.3);f(2);f(2.5);f(0);f(2);r=99;f(2);x.fill()

Jan 23 2018 4:09 AM UTC

}// 139/140

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Flying Paper Airplane

Show more comments…
u/donbright

:)
u/sigveseb

Nice idea
u/trupples

Woah
u/aleamb

Great idea. Very nice dweet.
u/Qwitter

Cool
u/Xen

but is it flying towards or away?
u/ellisk1

Good question! It's up to the viewer haha
u/mrbhawk

This is my favourite dweet ever.
u/aleamb

the most elegant dweet ever seen
u/hollo47

#paperplane #elegant
u/joeytwiddle

#model

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ipost

function u(t) {

c.width^=0;f=.01;for(i=628;i--;x.stroke())x.beginPath(),x.arc(960+860*S(t+i*f),540+440*C(t+i*f),60+45*S(20*S(t)*S(i*f)),0,6.28)

Jan 22 2018 10:38 PM UTC

}// 128/140

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u/aleamb

Wow!
u/Xen

very smooth
u/DirtyDan

Smart, using f to multiply i to gradually count up to 2 pi

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nystrand

function u(t) {

for(c.width=777,x.scale(i=23,i);i--;x.fillText([...'🍒🍊🍉🍺🍀'][t&&p<19?x[i]:x[i]=p*t*i%5|0],A,(i%3*11+3+p*p)%33))p=T(t+(A=i-i%3<<2)/2)/3

Jan 19 2018 9:46 PM UTC

}// 133/140

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u/Qwitter

'🍺🍺🍺🍺🍺'
u/lionleaf

Do you ever win?
u/Qwitter

'💣🕸🤦🏻‍♀️💩🏆' sort of
u/joeytwiddle

#game #tribute
u/joeytwiddle

#slots

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Jezza

function u(t) {

c.width|=[h,m,s]=new Date().toTimeString().split(/\D/);[h*5,m,s].forEach(a=>{for(r=b=540;r--;)x.fillRect(r*S(p=a/9.5492)+860,b-r*C(p),9,9)})

Jan 19 2018 1:58 AM UTC

}// 140/140

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Simple clock

u/41407

Perfect!

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BackendForth

remix of d/6153 by u/BackendForth

function u(t) {

a="ǀďĀǿĿǼŵǰŽĕşǵāŕąƼįǰǻľĵǊŗƪŚǰǰǀďĿ"
i=frame
g=(4-(a.charCodeAt(i/4)>>(i%4*2))%4)*64
x.fillStyle=R(g,g,g)
x.fillRect(i%10*80,(i-i%10)*8,80,80)

Jan 17 2018 10:25 PM UTC

}// 140/140

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u/magna

arrow keys don't work pls fix it
u/joeytwiddle

#game #tribute
u/PiggyClone205

Keycodes are involved, but which ones?
u/384.cz

#pixelart

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dogspace

function u(t) {

x.globalCompositeOperation='difference'
x.fillRect(0,0,10,10)
x.drawImage(c,0,9)
x.drawImage(c,9,0)
x.drawImage(c,9,9)
x.fillStyle='gold'

Jan 15 2018 3:19 PM UTC

}// 137/140

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HA CLOWNS! sixth dweet, remix of d/5894

u/Xen

:-/ lol
u/Qwitter

Cant unsee creepy clown nightmarenow :(
u/katkip

#gameoflife

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