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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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davidsharp

remix of d/7114 by u/dwardu

function u(t) {

m=Math,r=n=>m.floor(m.random()*n),f=48
for(i=0;i<9;i++)with(x)font=f+'px Verdana',clearRect(p=r(40)*f,q=r(22)*f,f,f),fillText(r(10),p,q+f)

Mar 2 2018 3:45 PM UTC

}// 138/140

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u/iverjo

#random

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RelikLabs

function u(t) {

for(T(0,i=4e3,.06);r=--i**4.3;T(t**(i<9?9:i<30)*200+r,a=r%5*S(i+t)**2,51*a))T=(w,s,a)=>x.fillRect(w*2%2e3,w%1079,s,s,x.fillStyle=R(a,a,a,a))

Mar 2 2018 4:20 AM UTC

}// 140/140

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u/prplz

Copypaste of https://www.dwitter.net/d/7063
u/M1T0

You're right, bad manners.

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AnnanFay

remix of d/7082 by u/yonatan

function u(t) {

x.drawImage(c,t&3?0:960,t&1?0:540,960,540)
x.drawImage(I,480,270,960,540)
};{(I=new Image).src='//具.pw'

Mar 2 2018 12:49 AM UTC

}// 103/140

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!h6q: please link https://picsum.photos/1920/1080?random

u/AnnanFay

Change t&3 to t&4 if you want it to branch in all directions.
u/AnnanFay

*t&2

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Yogeshp3

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect((140*t+70*i)%1920,500+S(3*t)*300,40,50) // draw 50x200 rects

Mar 1 2018 10:29 PM UTC

}// 121/140

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dwardu

function u(t) {

r=n=>(Math.random()*n|0)*96
x.drawImage(c,r(19),r(10),192,192,r(20),r(11),w=96,w)
x.fillStyle=R(z=r(2)**2,z,z)
x.fillRect(r(20*9),r(11),w,w)

Mar 1 2018 8:03 PM UTC

}// 140/140

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Splits 1920px×1056px canvas into 20×11 grid of 96px×96px tiles. Once every 9 frames fills a random tile black or white. Every frame picks a random 2×2 group of tiles and draws it onto a random 1×1 tile at ½ the size.

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fons

remix of d/7117 by u/dwardu

function u(t) {

x.drawImage(c,0,0,1920,1080,8+16*S(t/5)**2,t%32,w=1888,h=1048)
x.strokeStyle=R(z=2500*S(15*t)**4,z)
x.strokeRect(16,16,w,h)

Mar 1 2018 2:22 PM UTC

}// 123/140

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Agnes

function u(t) {

w=1920;B=x=>S(x+Math.random());e=w*t/5,o=~~(e/w);o&&q<o&&(c.width+=0);e%=w;for(i=o,v=B(e);i--;v=B(v));x.fillRect(e,540+300*v,5,5);throw(q=o)

Mar 1 2018 1:50 PM UTC

}// 140/140

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Proving a point to a colleague for why high-order trigonometric functions make for a poor random distribution. Not art. :(

u/AnnanFay

Hmm, I don't really understand. This is because you are getting the sine of values in [0,2]?

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Agnes

function u(t) {

q=5*(1+C(t));for(i=c.width=c.height=100;i--;)for(j=100;j--;)with(x)fillStyle=`hsl(${q*t*(i+1)*(j+1)},50%,50%)`,fillRect(i-q,j-q,2*q,2*q);;

Mar 1 2018 10:06 AM UTC

}// 138/140

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jylikangas

function u(t) {

for(c.width=250,t*=Y=w=69;Y--;x[f](-w+Y*7-S(t/w)*w,0,7,50+S(Y^w)*9))x[f='fillRect'](w-w/(z=Y)+S((v=Y+t)/w)*z*3,w+w/z,v&4?350/z:0,S(v/9)*3)

Mar 1 2018 9:50 AM UTC

}// 138/140

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OutRun :)

Show more comments…
u/sigveseb

Yeeees!
u/joeytwiddle

Whoa nice :D
u/Renaud___

wow
u/zanella

Just the road and the skyline effects alone are awesome. Dwitter is getting more and more awesome. :)
u/artfarnaa

thanks Jyklikangas. Your dwits are very motivating.
u/TheGreatRambler

Really nice!
u/aleamb

#road

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dwardu

function u(t) {

x.drawImage(c,0,0,1920,1080,16,32*Math.random(),w=1888,h=1048)
x.strokeStyle=R(z=255*S(t)**2,z,z)
x.lineWidth=32
x.strokeRect(16,16,w,h)

Feb 28 2018 10:22 PM UTC

}// 136/140

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Bumpy ride.

u/dwardu

drawImage() arguments 0,0,1920,1080 may be dropped!