Dweets awesomed by u/J2D28U

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: #ScaryMovies

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J2D28U

remix of d/3698 by u/szymski

function u(t) {

y=100;c.width|=0;r=3.1;o=(-2+(t/10%1)*24)*y;a=o/100.42;x.translate(o,950-y/r*S(a*2%r));x.rotate(a);x.fillRect(-y,-y,20,200);

Dec 27 2017 11:39 AM UTC

}// 124/140

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J2D28U

remix of d/3697 by u/Citiral

function u(t) {

w=1000;for(c.width=i=w;i>=0;i-=100)for(j=0;j<1080;j+=1){i2=i-w/2;j2=j-1080/2
d=Math.sqrt(i2*i2+j2*j2)/60
o=9+C(d-t*5)*5
x.fillRect(i,j,o,o)}

Dec 27 2017 11:32 AM UTC

}// 140/140

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First dwitter

u/J2D28U

woaw this site is cool

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Curlip

function u(t) {

c.width^=0
w=940
h=520
p=6.3
a=b=t%p
d=S(t)+2
x.lineWidth=80
x.arc(w,h,300,-a,-a+d)
x.stroke()
x.beginPath()
x.arc(w,h,220,b,b+d)
x.fill()

Dec 27 2017 7:35 AM UTC

}// 138/140

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u/sigveseb

Stylish
u/J2D28U

This is an amazing loading icon.

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mdiehr

remix of d/3846 by u/mdiehr

function u(t) {

e=255
for(i=0;i<4000;i++){
f=t*2.1+i
x.fillStyle=R(S(f)*e,S(f+1)*e,S(f+2)*e,1)
x.fillRect(960+S(t+i*1)*i/3,540+C(t+i*2)*i/3,7,7)
}

Dec 27 2017 3:57 AM UTC

}// 130/140

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nyarmith

function u(t) {

for(i=0;i<15;i++){
x.fillStyle=R(255*S(t),255*C(t),155); //color
  x.fillRect(100+(i*100+S(t)*50), 400 + (i*i*15*S(t)) ,50,50) //draw
}

Dec 27 2017 12:29 AM UTC

}// 135/140

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If you added canvas clearing at the beginning of the frame, then the title would be "waggle"

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Citiral

remix of d/3693 by u/Citiral

function u(t) {

  c.width=1920;s=40;for(i=0;i<1920;i+=s){for(j=0;j<1080;j+=s){f=s*(S(1.5*t+i+j)+1.1)/2;x.fillRect(i+f,j+f,s-f*2,s-f*2)}}

Dec 26 2017 8:34 PM UTC

}// 120/140

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u/sigveseb

this looks nice!

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