Dweets awesomed by u/AstonC

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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joeytwiddle

remix of d/2737 by u/nystrand

function u(t) {

c.width|=p=(S,D=20,X=2*S,Y=X,k=_=>p(S*.79,D-1,X+2*S*r()-S,Y-S*r()/2))=>D&&x.fillRect(X,Y,S,S,k(k(x.globalAlpha=.01)));t?p(500):r=Math.random

May 24 2017 5:26 AM UTC

}// 140/140

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Rain cloud slideshow

u/joeytwiddle

Thanks to golfing tricks from nystrand, I could create a gallery
u/iverjo

Neat!
u/hollo47

This is some next level shit, I don't even know where it starts!
u/joeytwiddle

We can save 7 chars by removing D entirely and using S>7
u/joeytwiddle

#clouds #heavy Set D=18 for faster rendering

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mxfh

remix of d/2719 by u/keithclark

function u(t) {

for(c.width|=a=50;--a;x.arc(960+S(G+t)*400,520+C(t+G*3)*400,a%25*70,0,6.2832))x.moveTo(G=a/25|0,0)
x.fill('evenodd')

May 15 2017 1:17 PM UTC

}// 116/140

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single fill draw call with fill-rule and arbitrary computation in moveTo

u/mxfh

#arc #fillrule

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keithclark

function u(t) {

for(c.width^=0,x.globalCompositeOperation='xor',a=50;--a;x.arc(960+S(G+t)*400,520+C(t+G*3)*400,a%25*70,0,7),x.beginPath(x.fill()))G=a/25|0

May 11 2017 12:16 AM UTC

}// 138/140

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u/donbright

for slower machines... for(c.width=320,x.globalCompositeOperation='xor',a=50;--a;x.arc(160+S(G+t)*99,100+C(t+G*3)*99,a%25*20,0,7),x.beginPath(x.fill()))G=a/25|0

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keithclark

function u(t) {

for($=c.width|=0;$--;x.fillRect(b+960,F+520,h/=3,h))e=$/7-C(t/4),d=($>>6)+t*6%1,h=d**(d/20),b=S(e)*d*h+S(t/3)/h*4e3,F=C(e)*d*h+C(t/5)/h*1e3

Apr 26 2017 2:35 PM UTC

}// 139/140

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u/magna

Wheeeeee!!!
u/iverjo

#tunnel
u/vain

nice dot tunnel.

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keithclark

remix of d/2561 by u/keithclark

function u(t) {

for(a=c.width|=l=C(t),m=S(t);a--;x.fillRect((d*l-S(a)*m)*h+960,(g*l-f*m)*h+520,h/=65,h))d=S(a*(f=C(a*a))),g=d*m+S(a)*l,h=800/(3+g*m+f*l)

Apr 23 2017 6:19 PM UTC

}// 136/140

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3 bytes smaller

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keithclark

function u(t) {

for(a=c.width^=0;a--;x.fillRect(C(a+t)*S(b)*h+960,C(b)*h+540,i=h/40-5,i))h=900/(2-S(a+t)*S(b=a*1.2502))

Apr 13 2017 9:50 AM UTC

}// 103/140

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Smaller version of https://www.dwitter.net/d/2298

u/aemkei

Nice golfing!!
u/donbright

ditto

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scottglz

remix of d/2329 by u/sfz

function u(t) {

x.fillRect(0,0,z=1e9,z);for(i=h=540;i--;x.clearRect(2*h+2*o.x*O-o.y*I,h-o.y*O-o.x*I/3,7,4))I=S(t-i),O=C(t-i),o=t?u[i]:u[i]={x:z*i%h,y:z/i%h}

Mar 29 2017 1:58 AM UTC

}// 140/140

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The stars cried out for spacification

u/sfz

sweet!
u/donbright

super
u/Cloud

#fly

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recursive

remix of d/1976 by u/recursive

function u(t) {

for(d=256;--d;)for(X=-32;++X<32;x.fillRect(960+X*8e3/d,100+7e4/d-h,120,9))x.fillStyle=R(h=(C(a=d/9+t*6)+C(X/9+a/3))*35,g=h+C(X^d)*6+90,g/.8)

Mar 9 2017 12:33 AM UTC

}// 140/140

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Bluer waves

Show more comments…
u/sfz

Incredible
u/sigveseb

Epic
u/FireFly

This is crazy, great stuff :D
u/iverjo

Best water on dwitter thus far!
u/iverjo

I also tried to achieve this some time ago, but yours is much more convincing
u/iverjo

https://www.dwitter.net/d/65 and https://www.dwitter.net/d/254 and https://www.dwitter.net/d/295 and https://www.dwitter.net/d/366
u/recursive

Your idea gives really great color to the surface. I wonder if it's possible to animate the colors using your idea, and the wave geometry and lighting using mine.
u/magna

(ノಠ益ಠ)ノ彡┻━┻
u/Renaud___

very very nice
u/jsizzle

Seriously amazing. Wow
u/SpecialAgent

Bravo
u/ideokan

i am a web developre, feeling like a dumb monkey in here
u/PiggyClone205

Welcome to the club, ideokan.
u/Godcranberry

This sis amazing, totally my favorite
u/Godcranberry

is* mb fam
u/iverjo

#water
u/hollo47

#ocean
u/katkip

#waves
u/vain

Very nice and lovely wave

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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 **

Show more comments…
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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p01

function u(t) {

for(x.fillStyle=R(i=c.width|=0);i--;(X*2+t^Y*2)&1||x.fillRect(199*(C(X*.8)*S(Y*=.4)+t%9),960-199*(4*S(t%3.1)-C(Y)),14,14))X=i/11%4,Y=i/240

Mar 5 2017 12:34 AM UTC

}// 138/140

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u/donbright

amiga lives?
u/donbright

d'oh now i see the original
u/iverjo

#amiga

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