Dweets awesomed by u/lewdev

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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snail

function u(t) {

x.transform(540,0,0,540,(c.width=1920)/2,540);
for(i=-t,n=20;n--;i+=t/8)
x.lineTo(C(i), S(i));
x.fill("evenodd");

Dec 26 2017 10:19 PM UTC

}// 113/140

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u/sigveseb

starts of basic then gets pretty cool
u/lionleaf

It gets cooler and cooler the longer you wait!
u/vain

i love it

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New_Core

function u(t) {

for(x.fillRect(0,0,i=b=2e3,q=1080-t);i--;x.fillRect(a*i%b+a/3*S(t*i/a/3),(i/5*t+i*50)%b%q,5,5))x.fillStyle=R(a=i*9%255,a,a)

Dec 24 2017 12:12 PM UTC

}// 123/140

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Let it snow, let it snow, let it snow....

Show more comments…
u/Xen

Perfect :-)
u/donbright

brilliant
u/donbright

brilliant
u/donbright

brilliant
u/ballotcan

http://i.prntscr.com/_aJutdekROaWdQKYy75nTw.… if you wonder the end
u/iverjo

Cool! Much better than my snow dweet ^^ https://www.dwitter.net/d/338
u/sigveseb

gotta love how the snow accumulates!
u/alien

no way... the snow is accumulating...
u/darrencearnaigh

Lovely seasonal golf.
u/snydej

Wow! This is excellent!
u/iverjo

#snow
u/vain

excellent snowflakes movements

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Xen

remix of d/3256 by u/gbnikolov

function u(t) {

for(i=c.width|=l=5e2;i--;x.lineWidth=.2)x.moveTo(960+S(i)*l,540+C(i+t)*l),x.lineTo(960+S(i/t+t)*l,540+C(i/t)*l);x.stroke()

Oct 6 2017 8:13 PM UTC

}// 122/140

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u/gbnikolov

that's insane <3
u/Xen

thanks :-)
u/magna

So pretty!
u/donbright

how did i miss this one... super work
u/Xen

thank you

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joeytwiddle

remix of d/3116 by u/yokljo

function u(t) {

c.width|=k=150;for(j=k*6;j--;x.fillRect(300+i*9,180+b*k-i+(S(i**1.33/k-t*7))*i**.7,9,k))i=j/6|0,x.fillStyle=`hsl(${18*(b=j%6)**1.8},70%,55%`

Sep 5 2017 4:17 PM UTC

}// 140/140

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Pride Flag (unlit)

u/joeytwiddle

which coincidentally uses the exact same colours as the Mac spinner
u/joeytwiddle

This larger version has lighting and extra wobble: https://codegolf.tk/a/168
u/iverjo

#flag
u/f8f82804

#rainbow #pride

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magna

remix of d/2403 by u/magna

function u(t) {

w=c.width|=0
r=x.clearRect.bind(x)
x.fillRect(0,0,w,w)
r(950+C(T=t*30)*70,490+S(T)*70,20,20)
r(0,950,t*w,10)
r(40,1e3,10,40)+r(60,1e3,10,40)

Aug 24 2017 6:29 AM UTC

}// 140/140

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dweet player loader

u/FireFly

I keep waiting for it to finish loading…
u/sigveseb

Sweet!
u/magna

#dweetplayerloader
u/joeytwiddle

#loading

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cantelope

remix of d/2845 by u/cantelope

function u(t) {

A=960,B=540,x.fillRect(0,0,D=2e3,D)
for(i=D;i--;)x.clearRect(A+1/(Z=2.5+C(p=i*C(t/2)/40)*S(q=i/628))*(X=S(p)*S(q))*A,B+C(q)/Z*A,s=69/Z/Z,s)

Jul 10 2017 4:43 AM UTC

}// 140/140

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Show more comments…
u/lionleaf

That's really neat!
u/Polyducks

This is amazing! What's the concept behind it? How are you getting the sphere?
u/cantelope

@Polyducks, it's a golfed version of the equation of a sphere [x=sin(p1)*sin(p2);z=cos(p2);z=cos(p1)*sin(p2);] combined with a tiny 3D projector, X=cx+1/z*x*cx; Y=cy+y/z*cx, where cx/cy is center screen, and x/y/z are the 3D coordinates. Hope that makes sense! :)
u/cantelope

*equation of a sphere: [x=sin(p1)*sin(p2);y=cos(p2);z=cos(p1)*sin(p2);]
u/alien

thanks for that, is projector a mathematical construct? does it have other names?
u/cantelope

@alien it's my own invention, the product of years of research into geometry. I wrote a tutorial with a (very ungolfed) version here https://cantelope.org/3D
u/alien

*__*
u/alien

All the lienar algebra and vectorial calculus in my bachelor finnally comes to life in my head... this is soooo cool @cantelope...
u/donbright

bravo... bravo

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joeytwiddle

remix of d/2600 by u/joeytwiddle

function u(t) {

t?c.width|=0:P=Z=5;for(i=36;i--;j==Z&&(X-1e3)**2<8e3?Z=9:Z?onclick=e=>Z--:P++)j=i>>2,x.fillRect(j?X=j%5*(t/19+i)*P%2e3:1e3,99*(j||Z),99,50)

Apr 27 2017 4:03 AM UTC

}// 139/140

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Crossy Box: Traffic Tourist

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u/joeytwiddle

I wanted a new seed for the next level but I only had space for P++. Fortunately we can do P++ on every iteration of the loop, until Boxy gets hit by an invisible car on row 0.
u/joeytwiddle

(Actually around 6 chars could be saved if we scale the canvas down, like MrM@_S did in his remix.)
u/MrM@_S

Replacing rectangles with 🚗s also saves bytes.
u/joeytwiddle

I can get 🚗 and 🐸 in ... 141 bytes ;)
u/joeytwiddle

Correction: The scene changes when Boxy get hit by the last car in row 1. Cars in row 0 do not re-assign X (and do not move).
u/iverjo

This is awesome :D A game in 139 bytes, and I actually enjoyed playing it!
u/joeytwiddle

Thanks iverjo! ❤️ Click 5 times to start playing

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Jenky

remix of d/2522 by u/magna

function u(t) {

c.width|=i=0
x.font='50px monospace';((u+'').slice(0,t*4+S(t)*6)+`
|`[t*2&1]).split(`
`).map(r=>x.fillText(r,0,++i*50))

Apr 18 2017 4:57 PM UTC

}// 119/140

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You could keep it as +' |' instead of +<return>| but hey, we want to see the whole thing, right? :D

u/magna

Excellent use of `!

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magna

remix of d/2516 by u/magna

function u(t) {

c.width|=0
x.font='50px monospace';
((u+'').slice(0,t*3+S(t)*5)+' |'[t*2&1]).split('\n').map((r,i)=>x.fillText(r,0,++i*50))

Apr 18 2017 12:29 PM UTC

}// 123/140

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Slimmer version of "pair programming nightmare"

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u/magna

Challenge: Add occasional mistakes like skipped characters / typos etc.
u/Polyducks

I'm struggling to understand how this works. Where have you got the function input from? Amazingly realistic!
u/Jenky

It's from (u+'') - afaik, it's basically a short/cheat way of converting anything to a string in JS :D
u/Jenky

Also, down to 119 and whole string within canvas - https://www.dwitter.net/d/2524
u/magna

@Jenky Nice!
u/magna

#quine

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magna

remix of d/1480 by u/magna

function u(t) {

c.width|=0
x.font='50px monospace';
(u+'')
.slice(0,t*3+S(t)*5)
.concat(t*2&1?'|':'')
.split('\n')
.forEach((s,i)=>x.fillText(s,0,++i*50))

Apr 18 2017 1:55 AM UTC

}// 138/140

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Pair programming nightmare

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u/joeytwiddle

that title made me Lol :D
u/sigveseb

:D
u/Jenky

That's a really clever illusion, love it
u/magna

Heh, thanks! Brought it down to 123 chars in hopes of adding occasional mistakes like skipped characters / typos etc., but couldn't immediately find a way. In case anyone wants to give it a shot: https://www.dwitter.net/d/2522
u/donbright

:o
u/Polyducks

Could you make a random function to skip odd spaces?
u/magna

It has to be a deterministic PRNG so that the places that are skipped are persistent. Otherwise, it would just look like a random flipping of characters. I thought about it, but couldn't immediately find a short solution.
u/Polyducks

That's a great point. Dwitter is such a mind twister!
u/highfestiva

Groovy baby!
u/magna

#quine
u/joeytwiddle

#funny

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