Dweets awesomed by u/trupples

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.

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Current theme challenge: #Opposites

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trupples

function u(t) {

t||(Px=[100,500,300],Py=[100,100,500],X=Y=0)
r=Math.random()*3|0
X=(X+Px[r])/2
Y=(Y+Py[r])/2
x.fillRect(X,Y,10,10)

Jan 1 2018 11:30 AM UTC

}// 114/140

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yaniv

function u(t) {

if(t%5<.01)c.width=2e3,x.font='9em a',fetch('//api.coinmarketcap.com/v1/ticker/').then(r=>r.json().then(v=>x.fillText(v[0].price_usd,0,99)))

Jan 1 2018 7:28 AM UTC

}// 140/140

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Extracting the value of Bitcoin in dollars from coinmarketcap.com's API, every 5 seconds. Assuming your browser supports 'fetch' + some numerical inaccuracies in "t". :)

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doof

remix of d/5072 by u/doof

function u(t) {

with(x)rotate(1/(t||translate(n=960,540))/99),drawImage(c,-957,-537,1914,1074),fillStyle=`hsl(${t*90},50%,50%)`,fillRect(-n,S(t)*n,n+n,t&63)

Jan 1 2018 4:59 AM UTC

}// 140/140

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u/donbright

hell yes. great

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doof

function u(t) {

t||x.translate(960,540)
with(x)rotate(T(t*t)*.01),drawImage(c,-957,-537,n=1914,1074),fillStyle=`hsla(${t*60},50%,50%,.02)`,fillRect(0,0,n,n)

Jan 1 2018 2:59 AM UTC

}// 140/140

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Flopster

remix of d/193 by u/lionleaf

function u(t) {

c.width|=h=t%6
k=h<1?0:1-5**-(h-1)
for(m=i=350;i--;)r=(i+9)*k*h,x.fillStyle=R(m,0,r),x.fillRect(C(i/4)*r+i%4*m+m,S(i/4)*r+(h-2)**2*m+m,9,9)

Jan 1 2018 1:17 AM UTC

}// 139/140

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Inspired by veubeke. Happy New Year!

u/Flopster

Edit: Inspired by a remix chain starting from d/192.
u/lionleaf

Awesome remix :D (I'll add the remix link for ya)
u/quuxman

damn I didn't post the first fireworks in 2018 :-} https://www.dwitter.net/d/5096

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ellisk1

remix of d/4450 by u/ellisk1

function u(t) {

c.width|=0;a=1e3;x.arc(a,545,255,22/7,44/7);for(i=9;i--;){d=i*55;x.fillStyle=R(a,a/i,80);x.fill();x.fillRect(a-d/2+20*S(t*(9-i)),a-d,d,40)}

Jan 1 2018 1:11 AM UTC

}// 139/140

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u/sigveseb

Fresh!
u/iverjo

#sun

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0c370t

function u(t) {

c.width|=0;for(i=0;i<256;i++){x.fillStyle=R(i*t%256,i*t%128,200);x.fillRect(960+T(t+i)*500,C(t+i)*2*i+540,40,15);}

Jan 1 2018 12:36 AM UTC

}// 114/140

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Dweet attempt 1

u/lionleaf

I like it

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BackendForth

function u(t) {

c.width=1920;
for(i=-594;i<23;i++)
{
q=99*(i+t*3)
r=Math.pow(1.4,i+t*3)
x.fillRect(q,(i%2)?500+r:500-r,59,199)
}
x.stroke()

Dec 31 2017 11:28 PM UTC

}// 123/140

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u/lionleaf

A zipper?

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ellisk1

function u(t) {

c.width|=0;for(j=1;j<13;j++){w=400*C(j/8);for(i=99;i--;){x.fillStyle=R(0,13*j,13*j);x.fillRect(-w+i*w/2,1100*S(j/8)+C(i/3+t*j/5)*w/3,w,w)}}

Dec 31 2017 10:56 PM UTC

}// 139/140

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trupples

function u(t) {

t||([c.width,c.height,c.onmousemove]=[innerWidth,innerHeight,e=>(x.fillStyle=[R(),'#fff'][+e.ctrlKey],x.fillRect(e.x,e.y,9,9))])

Dec 31 2017 10:28 PM UTC

}// 128/140

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Draw with the mouse; hold CTRL to erase

dwitter.net | trupples (15393)