Dweets awesomed by u/lionleaf

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: #Food

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jayIves

function u(t) {

c.width=1920; 
  for(i=0;i<256;i++){
  x.fillRect(i*8, 400+100*(C(6*i+5*t)+C(5*i+7*t)),6, 150)
}

Dec 27 2017 12:46 AM UTC

}// 96/140

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brentrb

function u(t) {

c.width=w=640
s=Math.floor(p=t?p+S(t)/5:3)
x.translate(w/2,180)
d=(p-3)/9
for(i=s;i--;x.lineTo(70,0))x.rotate(6.28/(s-1)+d+(d=0))
x.stroke()

Dec 27 2017 12:43 AM UTC

}// 140/140

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Citiral

remix of d/3752 by u/Citiral

function u(t) {

t/=2
t?x.strokeStyle=`hsl(${t*10},90%,60%)`:x.t=x.translate
x.rotate(t*S(t))
x.t(20,5)
x.lineTo(0,0)
x.stroke()
x.beginPath()
x.lineTo(0,0)

Dec 27 2017 12:39 AM UTC

}// 139/140

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ishmael.rufus

function u(t) {

c.width=100;x.fillText('Hello World', 1,30);

Dec 27 2017 12:37 AM UTC

}// 44/140

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u/lionleaf

Hello Ishmael!

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snail

function u(t) {

x.drawImage(c,10,10,1900,1060,0,0,1920,1080)
x.fillRect(950+70*S(t*2),530+70*C(t*3),20,20)
t=S(t)*127+127
x.fillStyle=R(t,t,t,1)

Dec 27 2017 12:07 AM UTC

}// 128/140

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sadropol

remix of d/3748 by u/sadropol

function u(t) {

c.width|=0;for(i=1;i<140;i++){b=2*t+i;o=200-(S(b+5)*126)%256;x.fillStyle=R(0,o,0,1);x.fillRect(940+((i/60)%1)*S(b)*200,400+i*6%400,8,8);}

Dec 27 2017 12:01 AM UTC

}// 138/140

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Show more comments…
u/sigveseb

merry christmas!
u/joe724

Beautiful!
u/Chipnstein

just got plastuer and made a nice redish background to apply this on my desktop, awesome!
u/vrishankm13

new here, but this is already my all time favorite, so beautiful
u/lionleaf

Awesome! Merry Christmas :D Some good ones last year as well, if you manage to find them ^^
u/hollo47

#tree #christmas
u/vain

beautiful xmas tree

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Citiral

remix of d/3712 by u/Citiral

function u(t) {

x.t=x.translate
t?x.strokeStyle=R(S(t)*255):x.t(960,540)
for(i=2;i--;x.t(0,37*i)){x.rotate(t*S(i))
x.lineTo(0,0)}
x.stroke()
x.beginPath()

Dec 26 2017 11:45 PM UTC

}// 139/140

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Somewhat managed to get color working, barring some expenses.. Big props to Xen for helping me minify this code!

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krazov

function u(t) {

p=500
c.width=1920
x.rotate(Math.random()/100);
x.fillRect(960-p/2,540-p/2,p,p)

Dec 26 2017 11:44 PM UTC

}// 79/140

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bellum128

function u(t) {

c.width=1920;
  for(i=0;i<90;i++)
x.fillRect(960+C((i/9) * 360 + t) * 50, 540+S((i/9) * 360) * 50, 30, 30)

Dec 26 2017 11:25 PM UTC

}// 108/140

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u/lionleaf

Oooh, 3D! Neat.

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GoogleBen

function u(t) {

c.width=1920;
  for(i=-10;i<10;i++) 
  x.fillRect(960+i*30, 400 + T(t+(i*3))*100, 27, 200)

Dec 26 2017 11:18 PM UTC

}// 90/140

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