Top dweets of all time

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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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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sfz

remix of d/2351 by u/nonce

function u(t) {

c.width=w=512
with(x)fillRect(0,h=240,w,w),clearRect(t*999%w-31,h+7,93,9),font='9em a',fillText(['🚗','🚃','🚙'][~~(t/2)%3],w-(t*w&1023),h)

Mar 31 2017 4:25 AM UTC

}// 136/140

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nonce

function u(t) {

with(x)font='950px o',lineWidth=30,strokeStyle=`hsl(${t*50%360},99%,50%)`,setLineDash([9,3e3]),lineDashOffset=t*120,strokeText('I❤U',9,880);

Mar 25 2017 5:45 PM UTC

}// 140/140

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u/tapgiles

In Chrome, the text is too large, and the heart never shows up. Pretty awesome idea, though.
u/recursive

It shows perfectly for me in Chrome on Windows.
u/nonce

I so wish I could fix the font here. Sadly it has to go with whatever default font you have. If someone could golf this down by 4 chars we could do font='950px Arial'
u/New_Core

with(x)font='25cm Arial',lineWidth=30,strokeStyle=hsl(${t*50},99%,50%),setLineDash([9,3e3]),lineDashOffset=t*120,strokeText('I❤U',9,880);
u/joeytwiddle

#text

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sawaxon

function u(t) {

c.width|=0;k=i=>(S(i*t)+1)*49;p=i=>S(i)*9+i*99;for(j=19;j--;)for(i=12;i--;x.moveTo(p(j),p(i)))x.ellipse(p(j),p(i),k(i),k(j),0,.1,0);x.fill()

Mar 9 2017 7:14 PM UTC

}// 140/140

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farter

function u(t) {

t||(f=s=1);s<<8&f||s>>24&255?(f|=s,s=1<<new Date,f>>24==-1&&(f<<=8)):s<<=8;c.width=63;for(i=32;i--;)(f|s)&1<<i&&x.fillRect((i&7)*8,i&~7,7,7)

Mar 4 2017 11:43 AM UTC

}// 140/140

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Show more comments…
u/parabola

Awesome!
u/iverjo

Tetris! Any way we could slow it down?
u/FireFly

Very nice! (i&7)*8 → i%8*8 should save you two bytes, btw
u/farter

@iverjo in fact at first i tried, but if it's slowed down, you'll see some wrong but minor behavior, due to saving bytes. and @FireFly thx, and the two bytes allowed me to solve one of them!
u/Renaud___

I am trying to do anything like that since 4 days ... with 180 char, cant golf it... full respect farter :)
u/joeytwiddle

#game #tribute
u/Cloud

#tetris

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donbright

remix of d/1755 by u/SpecialAgent

function u(t) {

n=frame
q=n%2?400:289.2
d=n%2?2*t:2*t/.61518
X=960+q*C(d),Y=540+q*S(d)
n%4?x.moveTo(X,Y):x.lineTo(X,Y)
x.stroke()
x.fillRect(X,Y,9,9)

Mar 3 2017 2:36 AM UTC

}// 133/140

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This shows the pattern traced by a line directly between the Earth and Venus as they orbit the sun. This pattern is pretty ancient, for example discussed in the book Quadrivum about the old academic relationships between art and science. This type of pattern may be helpful to appreciate the concept of Orbital Resonance in a planetary system.

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u/donbright

thx to https://nssdc.gsfc.nasa.gov/planetary/factsh… for the data
u/sfz

Fascinating
u/donbright

inspired by @SpecialAgent obvs!
u/SpecialAgent

This pattern is very pleasing to the eye, very nicely done!
u/sigveseb

This space stuff is nice!
u/Lazy1337

#cardioid
u/Lazy1337

#math
u/donbright

#venus #space #orbits

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FireFly

function u(t) {

for(s='0',i=5;i--;c=s[t*60|0])s=s.replace(/\d/g,i=>['0-1+0+1-0',11][i]);c<2?x.translate(0,32,x.fillRect(0,0,3,32)):+c||x.rotate(c+120/57.3)

Mar 1 2017 5:43 PM UTC

}// 139/140

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[Team dweet with u/PeCaN] L-system visualizer! Change initial state (s), #iterations (i), transition rules (['0-1+0+1-0',11]), which digits correspond to 'draw and move forward' (c<2), angle (120) to your own L-system ruleset. Digits 0-9 correspond to variables/constants (for each constant, add a rule that maps it to itself, i.e. to 'i').

u/5Mixer

Ha awesome! I was surprised when I saw this, I'd seen it on the internet before and was idly scribbling on the back of my book in a boring class today. Dope stuff :D

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Niklas

function u(t) {

for(c.width|=0,q=100,i=q;i--;)for(a=i*.031+t*5,j=q;j--;)b=j*.031+t*5,x.fillRect(500+10*i+q*C(b),240+5*j+q*S(a),3,3);

Mar 1 2017 1:29 PM UTC

}// 116/140

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u/SpecialAgent

nice cloth :)

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ooommmooo

function u(t) {

for(i=0;i<30;i++){j=255*(i/29);z=i*40-(200*t%40);x.beginPath();x.arc(960,200*S(t)+540,960*(1-z/(99+z)),0,7);x.fillStyle=R(j,j,j,1);x.fill()}

Feb 25 2017 9:23 PM UTC

}// 140/140

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u/iverjo

"No matter what you're going through, there's a light at the end of the tunnel"
u/Niklas

Nice!
u/ooommmooo

Thanks guys!
u/joeytwiddle

#tunnel #light #glow

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sigveseb

remix of d/1232 by u/iverjo

function u(t) {

c.width^=0;for(i=5e3;p=3*t+S(t/2)*i/3e3+i%4*2,i--;x.fillStyle='red')d=C(p)-S(p),d>0&&x.fillRect(960+199*S(p)+249*S(t+i/6e3),i/4-2,199*d,1/d)

Feb 24 2017 11:39 PM UTC

}// 140/140

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u/donbright

kind of looks like a straw!
u/sigveseb

#twister