Dweets awesomed by u/MatthieuLemoine

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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poro

function u(t) {

for(i=0;i<999;i++){
c=(i+t)%9;t+=0.9;
x.fillStyle=R(c,c,c*9,.05);x.fillRect(S(t)*4*i+960-S(t)*780+S(t*2)*250,C(t)*2*i+720-C(t*.5)*120,9,9)
}

Dec 28 2017 1:19 PM UTC

}// 140/140

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trabbt

function u(t) {

c.width+=0;for(i=0;i<500;i++)x.fillStyle=R(250,100*C(i),100*S(i)),x.fillRect(99+S(t*4+i)*140+T(t+i%2)*600,500+C(t+i)*240+C(t*6+i%2)*200,9,9)

Dec 28 2017 12:55 PM UTC

}// 140/140

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lowpoly

remix of d/4348 by u/lowpoly

function u(t) {

i=2e3,c.width=i,x.fillRect(0,0,i,i),x.fillStyle='#fff';for(p=i;p--;)d=p/500,x.fillRect((p+d*50*(t+i))%i,(''+p*T(p)/i).substr(-3)/999*i,d,d)

Dec 28 2017 11:00 AM UTC

}// 139/140

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Scrolling stars that look more like stars :) Now to add sine functions or something.

u/Xen

x.fillRect(0,0,c.width=p=i=2e3,i)
u/lowpoly

yeah, i usually do something like i=c.width=2e3 now :P

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Flopster

function u(t) {

c.width|=0
s=1000
for(i=0;i<s;d=2*Math.PI/s*i,r=Math.max(0,S(t*(1+t*i*Math.PI/s)/5))*500,x.fillRect(r*C(d)+960,r*S(d)+540,10,10),i++);

Dec 28 2017 9:41 AM UTC

}// 134/140

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MatthieuLemoine

function u(t) {

c.width=1920
s=999*t%1500
o=200
t=x.fillText.bind(x)
x.font="190px A"
for(i=0;i<900;i+=150){t('→',s,o+i)
t('🏹',0,o+i)
t('🚶',1600,o+i)}

Dec 27 2017 4:06 PM UTC

}// 134/140

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