Dweets awesomed by u/innovati

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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aemkei

remix of d/1137 by u/mxfh

function u(t) {

r=500;c.width^=0;for(I=φ=2;φ>-2;φ-=1/2e3)x.fillRect(C(φ)*S(λ=φ*r-t)*r+999,S(φ)*r+520,W=(16&(T(I=I*9%32432)+2))*C(λ/2),W)

Mar 20 2017 10:34 PM UTC

}// 120/140

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A tiny planet

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z3vin

function u(t) {

r=Math.random;y=c.width;z=c.height;x.fillStyle='#333';for(i=0;i<2999;i++)x.fillRect(r()*y,r()*z,5,5);x.clearRect(r()*y-99,r()*z,r()*z/2,z)

Mar 20 2017 8:42 PM UTC

}// 138/140

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The City Never Sleeps

u/sigveseb

Cool technique!
u/z3vin

thanks! @sigveseb

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aemkei

function u(t) {

t||(W=c.width=600);i=W;for(x.fillRect(0,0,W,W);i--;x.fillText(unescape("%u30B"+C%9),i*9,C=~~(t*9+i**3)*12%W))x.fillStyle=R(0,i&&W,0,i?1:.05)

Mar 19 2017 8:18 PM UTC

}// 140/140

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Welcome to the Matrix!

u/iverjo

#matrix
u/danny@hille.dk

More speed longer trails !t?W=c.width=600:i=W;for(x.fillRect(0,0,W,W);i--;x.fillText(unescape("%u30B"+C%9),i*9,C=~~(t*15+i**3)*11%W))x.fillStyle=R(0,i&&W,0,i?1:.03)
u/vain

Beautiful looking remake of the matrix fx

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magna

remix of d/2176 by u/scottglz

function u(t) {

for(X=71;X--;)for(Y=39;Y--;)x.fillStyle=X<24&Y<21?Y%2|X-Y&3|!Y|!X|Y>18?'#00f':'#fff':Y/3&1?'#fff':'red',x.fillRect(X*25,Y*25+9*S(t+X),25,25)

Mar 18 2017 3:44 AM UTC

}// 140/140

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u/iverjo

#flag

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mxfh

remix of d/2180 by u/aemkei

function u(t) {

for(i=W=c.width=2e3;i--;x.beginPath(),x.arc(W*(T(i/9)+s*t)%W,540+540*S(s*W),s*30,0,7),x.fill())s=149/(i*3+199)

Mar 18 2017 3:05 AM UTC

}// 110/140

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arc all the things

u/iverjo

#parallax #dots
u/mxfh

#arc

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veubeke

function u(t) {

t?_[Math.random(B=c.width^=0)*6|0]++:_=[0,0,0,0,0]
x.font='100px O'
_.map((v,i)=>x.fillText('🐌',110+v,$=200+i*179,x.fillRect(0,$-130,B,4)))

Mar 17 2017 10:17 PM UTC

}// 139/140

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Show more comments…
u/sigveseb

Lol!
u/veubeke

Fun hack: using *6 instead of *5 for the index adds a 6th element containing NaN. The 6th line is visible but not the snail because drawing the snail involves the NaN value.
u/gabrielsroka

neat, but are the snails going backwards?
u/innovati

you're too silly :3
u/tapgiles

What's with the _?
u/veubeke

@gabrielsroka: if you have an emoji font with a snail looking left then they’re going backwards, yes
u/lionleaf

Going backwards on my phone, but forwards on my laptop. This should be part of the snail emoji spec!!
u/veubeke

I’ll bring it up at the next snail emoji consortium meeting.
u/gabrielsroka

lol, they're soooo slow, they're going backwards. and yes, mine look left
u/gabrielsroka

according to http://emojipedia.org/snail/ Apple is in the minority, and Windows 8.1 looks left
u/magna

On my computer, the best snail always wins.
u/ilSilvano

Great idea! :-D
u/iverjo

#random
u/micahcowan

#emoji #snailrace

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magna

remix of d/2172 by u/magna

function u(t) {

c.width=w=1920;h=1080;n=128;m=72;s=w/n;for(i=n*m;i--;X=i%n,Y=i/n,b=S(X/Y+t*t),x.fillRect(X/n*w,Y/m*h,b*s,b*s));

Mar 17 2017 7:16 PM UTC

}// 111/140

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u/recursive

like a corn field from the drivers' seat

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jczimm

function u(t) {

b=t+4.5;t<2.5&&(x.beginPath(x.fill()),x.fillStyle=R(S(b*-23)*127+127,0,10),x.arc(960+50*T(b*10),540+30*S(b/2),b*30,15*b-1,15*b))

Mar 16 2017 11:48 PM UTC

}// 128/140

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u/tapgiles

Beautiful!

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recursive

remix of d/2065 by u/recursive

function u(t) {

w=C(t)
h=S(t)
for(c.width|=s=i=H=512;i--;x.lineTo(960+(X*w-S(i)*h)*H,H+(Y*w-Z*h)*H))X=C(o=i/-~t),Y=C(i)*S(o),Z=S(i)*w+X*h
x.stroke()

Mar 12 2017 6:50 AM UTC

}// 132/140

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u/sfz

It looks like a horned shark egg case, of all things

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xem

remix of d/2050 by u/xem

function u(t) {

c.style=`background:radial-gradient(#FF0,red,blue,#fff 50%);transform:rotateX(${t*9}deg)rotateY(${t*99}deg)rotateZ(${t/5}rad)scale(${T(t)})`

Mar 11 2017 12:29 PM UTC

}// 140/140

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u/sfz

css masta!

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