Dweets awesomed by u/robruthco

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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Niklas

function u(t) {

r=Math.random,!t&&(p={x:960,y:540,c:0,d:0}),p.c+=2*r()-1,p.d+=2*r()-1,p.c*=.9,p.d*=.9,p.x+=p.c,p.y+=p.d,x.fillRect(p.x,p.y,3,3);

Feb 24 2017 4:23 PM UTC

}// 128/140

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Brownian molecular motion

u/danni

This resembles my signature when the UPS guy visits.

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Mamboleoo

function u(t) {

w=350
h=70
x.save()
x.translate(785,155)
for(i=0;i<3;i++)x.fillRect(0,h*i*2,w,h)
for(i=0;i<3;i++)x.fillRect(0+h*i*2,h*6,h,w)
x.restore()

Feb 24 2017 4:23 PM UTC

}// 136/140

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robruthco

function u(t) {

(F=Z=>{for(x.fillStyle=R(W=2/Z*1e3,W/2,W/1),i=Z*Z*2;n=i%Z,m=i/Z|0,i--;n%2^m%2&&x.fillRect((n-t%2-1)*W,(S(t)+m-1)*W,W,W));Z&&F(Z-6)})(36)//rm

Feb 24 2017 4:18 PM UTC

}// 140/140

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u/iverjo

Hi there :) I had to delete #1215 because it froze the browser (due to some excessively deep recursion or something). Here's the code, for reference: (F=Z=>{for(x.fillStyle=R(W=2/Z*1e3,W/2,W/1),i=Z*Z*2;n=i%Z,m=i/Z|0,i--;n%2^m%2&&x.fillRect((n-t%2-1)*W,(S(t)+m-1)*W,W,W));Z&&F(Z-5)})(36)//rm

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Birdinadream

function u(t) {

q=255;b=540;x.fillStyle=R(9,9,9,.1);x.fillRect(0,0,1920,2*b);x.fillStyle=R(q,q,q,1);for(i=0;i<99;i++)x.fillRect(b+i+T(t)*99,b+C(t*i)*b,6,2)

Feb 24 2017 8:41 AM UTC

}// 139/140

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