Dweets awesomed by u/logomach

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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logomach

function u(t) {

c.width=2e3;for(i=50;i--;){d=t+i-1.57;x.fillStyle=R(S(d)*255,S(d)*100,80),x.fillRect(960+S(t+i)*500,200+S(t%i*.5)*200+i*5,10,10*i)}

Jan 1 2018 10:28 PM UTC

}// 131/140

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logomach

function u(t) {

c.width=2e3;for(i=800;i--;)x.fillStyle=R(S(i)*255,S(t+i)*255,100),x.fillRect(0,i%T(t/1000+i*500)*20,10*i/2,3)

Jan 1 2018 10:08 PM UTC

}// 109/140

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Bugsy

remix of d/1494 by u/Renaud___

function u(t) {

c.width+=i=0;h=400;for(;++i<200;)for(j=a=(t+C(i))%2;j++<50;)x.fillRect(C(i)+~~a*(w=a*h-h)*C(j)+960,(~~a?h:a*h)*(C(i)**2+2)+w*S(j)/4-210,2,2)

Jan 1 2018 3:25 PM UTC

}// 140/140

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u/BirdsTweetCodersDweet

Sweet!
u/lionleaf

#organic

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logomach

function u(t) {

  c.width=2e3;for(i=192;i--;)for(j=108;j--;)x.fillRect(i*10+S(t/(i+j)*500)*100,j*10+S(t+i),8,8)

Jan 1 2018 2:34 AM UTC

}// 96/140

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jonathan_b

remix of d/5066 by u/jonathan_b

function u(t) {

for(c.width|=s=490,q=T(t/9),r=s*2,i=s*9;i>0;)for(j=9;--j;)x.fillStyle=R(s/T(q-i),j*25,i/9,1),x.fillRect(r+s*r*q/i*T(q-i-j),s+s*S(i--),25,25)

Jan 1 2018 2:08 AM UTC

}// 140/140

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u/lionleaf

Oh wow! That looks amazing

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logomach

remix of d/5021 by u/logomach

function u(t) {

c.width=2e3
  for(i=0;i<10000;i++){
x.fillStyle=R(255-i/2e3*255,40,i/10),
x.fillRect(960+i*S(t-i/10),i,10,10)
}

Dec 31 2017 8:45 PM UTC

}// 111/140

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logomach

function u(t) {

c.width=2e3
  for(i=0;i<1920;i++){
x.fillStyle=R(255-i/2e3*255,40,i/10),
x.fillRect(960+i*S(t-i/10),i,10,10)
}

Dec 31 2017 8:44 PM UTC

}// 110/140

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logomach

function u(t) {

c.width=2e3
  for(i=1920;i--;){
x.fillRect(i+S(i)*100,560+C(t-i*S(t)/80)*100,10,10)
}

Dec 31 2017 7:51 PM UTC

}// 85/140

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logomach

function u(t) {

c.width=2e3;for(i=20;i--;){for(j=10;j--;)x.fillStyle=R(i*20,j*25,10),x.fillRect(960+S(t-i-j*.05)*400,540+S(t+i-j*.05)*200,10,10)}

Dec 31 2017 7:30 AM UTC

}// 129/140

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u/Bugsy

Can remove the brackets from the first “for” and save 2 characters
u/Bugsy

Can also replace the “*.05”s with “/20” to save 2 more

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doof

remix of d/3899 by u/doof

function u(t) {

c.width^=0
x.beginPath(x.translate(960,540))
for(i=t/Math.PI/2;i-->-1;x.rotate(t),x.arc(S(t)*200,0,300,0,7))x.lineTo(0,0);
x.fill('evenodd')

Dec 31 2017 6:52 AM UTC

}// 140/140

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finally got what i originally wanted d/3899 to be -- the lineTo(0,0) takes care of the evenodd artifacts, and the addition of more circles is timed with the contractions. i'll stop with the circles now, i promise. :P

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