Dweets awesomed by u/kchplr

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: #Opposites

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p01

function u(t) {

for(c.width|=i=48;i--;x.fillText(['🐸','🌷','☁️️'][k],64*S(k?i:i/9-t),i*3*C(k||i/7-t)))x.setTransform(j=((k=i>>4)*t+48-i)%16,0,0,j,960,540)

Mar 5 2017 3:53 PM UTC

}// 137/140

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** SPACE HARRIER **

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u/iverjo

LOL, nice :D
u/lienthealien

D: it's incredible. I still don't fully understand whats going on the begginning of the for.
u/p01

Thanks! Touching the width ( or height ) of a canvas resets it. c.width|=i=48; ⇒ Sets i to 48. Does a binary OR of 48 on the width of the canvas and resets ( it mostly clears it ) the canvas
u/sfz

redrawing the canvas and initializing i, nice!
u/lienthealien

p01 are you a wizard?? :v
u/donbright

doesnt seem to like firefox/ubuntu
u/iverjo

Hmm, why can one not do '🐸🌷☁️️'[k]? Is it simply because they are not single-byte characters?
u/p01

@iverjo: Exactly. Although I should have used [...'🐸🌷☁️️'][k] to save 3 bytes
u/andres

emojis exist on two planes of universes
u/AstonC

Phenomenal
u/joeytwiddle

#dragon #worm #game #tribute
u/joeytwiddle

#hiddengem
u/f8f82804

#emoji
u/stephsmith

#smokedweeteveryday
u/geb

#background

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New_Core

function u(t) {

c.width=1920;for(i=16;i--;)x.ellipse(1e3+300*S(t+i*.1),500+50*C(t+i*.1),160*S(-i*.5)+160,50*S(i*.1)+5,1.6+.5*S(t*.5),9.5,0,6.3);x.stroke();

Mar 3 2017 3:31 PM UTC

}// 139/140

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u/sfz

wow creative!
u/sfz

reduced it by about 15 bytes in case you want to try to do something else with the extra room: c.width|=0;for(i=16;i--;)x.ellipse(1e3+300*S(t+i/9),500+50*C(t+i/9),160*S(-i/2)+160,50*S(i/9)+5,1.6+S(t)/2,9,0,7);x.stroke()
u/iverjo

So good!
u/sigveseb

is that a pseudo-3D fish? super nice!
u/donbright

marvellous
u/magna

WAAAAT
u/SpecialAgent

Magnificent depth!
u/joseprio

Really impressive :)
u/Kalanchoe

Amazing!
u/ArtsyBiker1

WHOA
u/gautjac

beautiful
u/21medals

Reduced it ±20 bytes and added beginPath() without changing any values:
u/21medals

for(c.width|=i=16;a=i--/10;x.stroke())x.beginPath(),x.ellipse(1e3+300*S(t+a),500+50*C(t+a),160*S(-i/2)+160,50*S(a)+5,1.6+S(t/2)/2,9.5,0,6.3)
u/New_Core

#fish
u/joeytwiddle

#model
u/Cloud

https://www.dwitter.net/d/17352
u/vain

incredible 3d fish

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kchplr

function u(t) {

G=t=>(10+Math.random()*50<<2).toString(16)
x.font='4em A'
s=G()+G()+G()
x.fillStyle='#'+s
x.fillText(s,100+(t*6|0)*260,100+(t*6%1*10|0)*100)

Mar 2 2017 4:22 PM UTC

}// 140/140

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Trying to reproduce https://twitter.com/AtticusBones/status/8370… as closely as possible

u/sfz

cute!
u/iverjo

+1 for the novelty
u/DataMeta

#colors
u/DataMeta

#colors

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kchplr

function u(t) {

for(c.width^=0,i=3e3;i--;y=S((z+z+i<<-9)+t),x.fillRect(980+300*y+y*z*z*99,520+z*500,20+y*y*100,9))z=S(t+i<<-9)

Mar 2 2017 1:35 PM UTC

}// 110/140

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kchplr

remix of d/1396 by u/kchplr

function u(t) {

for(c.width^=0,i=3e3;i--;e=S(t*.7)/50,z=99+S(i*2+r*e)*600,y=S(C(i+t)),x.fillRect(1e3*(1+y),r*2.5+400+z*y/2,y*8,y*7))r=i/30

Mar 2 2017 12:45 PM UTC

}// 122/140

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Exactly the same as the original but with 11 less characters. Thanks to u/sigveseb/ for one of the tricks.

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puckipedia

function u(t) {

c.width+=0,c.onmousemove=d=>a=d.clientX*3;z=(t?z:Array(f=1e3).fill([a=f,0])).map(([w,e],i)=>(x.fillRect(w,i,9,9),[w+e*i/f+e/9,(e*6+a-w)/9]))

Mar 1 2017 7:29 PM UTC

}// 140/140

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Just a wobbly line.

Show more comments…
u/sfz

was staring at this waiting for something to happen longer than I like to admit XD
u/lionleaf

Amazing. Love these interactive ones
u/iverjo

+1 for the physics :D
u/iverjo

mildly entertaining to play with
u/hamptonio

nice!
u/recursive

I learned something new! Destructuring assignment!
u/iverjo

#interactive
u/katkip

#physics

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sfz

remix of d/672 by u/aemkei

function u(t) {

for(c.width=874,b=[d=this.b||0],i=5e3;i--;x.fillText(b[i]=d?a==3|d[i]&a==2:i%7%2,i%96*9,i/9))for(a=0,j=5;e=93*(2<j--)+j;)a+=d[i+e]+d[i-e]

Mar 1 2017 7:18 PM UTC

}// 137/140

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Life in Bits

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FireFly

remix of d/1689 by u/FireFly

function u(t) {

for(s='0',i=6;i--;c=s[t*60|0])s=s.replace(/\d/g,i=>['+1-0-1+','-0+1+0-'][i]);c<2?x.translate(18,0,x.fillRect(0,0,18,3)):x.rotate(c+60/57.3)

Mar 1 2017 5:45 PM UTC

}// 139/140

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L-system visualizer. Sierpiński arrowhead curve

u/donbright

brilliant.... any description of how it works?
u/donbright

n/m i see you explain it in 1688, thanks!
u/tomkh

haha... using translate/rotate is a cool hack! reminds me of LOGO turtle
u/FireFly

Hehe, it's handy to offload the job of keeping track of the turtle to the canvas.
u/katkip

#fractal

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kchplr

function u(t) {

for(c.width=500,x.font='13em A',s="🚕🚗🚙🚓",i=10;i--;)x.fillText(s[i*2%8]+s[1+i*2%8],700-((t*1e3+i*400*(1+S(i*9+t)/20))%4e3),205)

Mar 1 2017 11:51 AM UTC

}// 126/140

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feature request: posting anonymously...

u/lionleaf

Why not just create a pseudonym to post with? Or do you mean to make it quicker for new people to post something? I'm afraid it would just get filled with spambots
u/SpecialAgent

nice car chase. registration keeps the quality of dwits decent, imho.
u/kchplr

I was thinking about posting anonymously once you're registred, but it was mostly a joke given I'm not so glad with the outcome of this one. :D..
u/donbright

lol

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FireFly

function u(t) {

t||x.translate(X=960,540,c.onmousemove=e=>X=e.offsetX);for(i=80;i--;x.rotate(8))x.fillStyle=`hsl(${X},80%,${i}%)`,x.fillRect(i,S(t)*960,i,i)

Feb 28 2017 9:39 PM UTC

}// 140/140

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Interactive demo! Move your mouse to change colour!

Show more comments…
u/FireFly

Thanks to veubeke and p01 for golfing tips :)
u/lionleaf

Oh wow! That's amazing
u/sigveseb

really nice!
u/iverjo

Sick!
u/profit

really cool!
u/lionleaf

On mobile you can tap at different locations for different colors
u/sfacci

ridiculously awesome
u/SpecialAgent

Excellent! And packed full of useful technical tricks, double whammy!
u/Xen

Done Re-mi(X)en
u/jaemiejaemie

borrowed the code used for capturing the mouse x on #4296, thank you
u/iverjo

#interactive
u/lionleaf

#spiral

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