Dweets awesomed by u/Koi

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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yonatan

remix of d/8810 by u/fujimotos

function u(t) {

c.width=-1
for(k=32;k--;)for(j=k&7,i=90;i--;x.fillRect(S(k+t+i/30+S(j))*20+45*j,S(t*5+i/9)+i*2-k+20,i/2,i))x.fillStyle=R(n=i*(32-k)/32,n*3)

Jul 6 2018 10:08 PM UTC

}// 139/140

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u/aleamb

nice! #organic #grass
u/fujimotos

Good color gradations!

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fujimotos

function u(t) {

c.width=320
for(j=12;j--;)for(i=90;i--;)
x.fillStyle=`hsla(99,${i}%,${i}%,.9`,
x.fillRect(S(t+i/30+S(j))*20+20*j,S(t*5+i/10)+i*2,i/2,i/2)

Jul 4 2018 1:09 PM UTC

}// 137/140

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Weird Plants

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magna

function u(t) {

x.fillRect(0,0,c.width=w=255,w)
for(i=99;i--;x.fill(x.arc((t*b*i+i*i)%w,99+b,5+b/5,!x.beginPath(),7)))b=i&1?1:-1,x.fillStyle=R(w,b*w,b*w,.2)

Jun 26 2018 3:22 AM UTC

}// 140/140

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Highway at night #bokeh

u/lionleaf

I like it! #traffic
u/magna

2 chars shorter, yellow headlights: with(x)for(i=fillRect(0,0,c.width=w=255,w)|99;i--;fill(arc((t*b+i)*i%w,99+b,5+b/5,!beginPath(),7)))b=i&1?1:-1,fillStyle=R(w,b*w,b*w*.8,.2)
u/aleamb

absolutely beautiful, magna
u/joeytwiddle

Love it. Reminds me of Mercury - The Timeless. Would be great to get some z-axis going.
u/magna

Thanks folks!

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DataMeta

remix of d/8721 by u/DataMeta

function u(t) {

r=Math.random;m=r();n=r();o=r();for(i=256;i--;)x.fillStyle=R(i/m*n,i/n*o,i/o*m,.08),x.fillRect(960+T(i)*i,840+i*S(T(i)+t),(i/9)/n,(-i/9)/m)

Jun 24 2018 10:23 PM UTC

}// 139/140

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Waves of #colorshock

u/Xen

stylish ;-)

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firegodjr

remix of d/8702 by u/cantelope

function u(t) {

for(x.fillRect(0,0,i=(w=960)*2,i);i--;x.clearRect(w+(v=S(q=i/305+t)*Z)/(Z=C(q)*Z-8)*w,(S(i)-3)/Z*w-99,s=50/Z,s),x.fillStyle="#0003")Z=C(i)+4

Jun 24 2018 1:47 AM UTC

}// 140/140

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Xen

remix of d/8706 by u/DataMeta

function u(t) {

x.drawImage(c,m=S(t),n=C(m*t));for(i=365;i--;x.fillRect(960+3*i*S(t-i/.3),540+S(i*t%i)*i*3,T(t)/n,T(i)/m))x.fillStyle=R(i*m/n,i*m,i/n,.2)

Jun 23 2018 2:05 PM UTC

}// 137/140

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jylikangas

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(u=29;u--;)for(v=65;v--;x.clearRect(960+(150+99*C(v))*C(U)*z,540+75*S(v)*z,z,z))z=60/(9+C(v)/T(t/2))*S(U=u/9+t/9)

Jun 23 2018 8:08 AM UTC

}// 140/140

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Pulsating Torus

u/lionleaf

#torus
u/DataMeta

Marvelous!
u/iverjo

Well done!
u/Galaxtone

TypeError: u is not a function

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pythech

remix of d/8694 by u/pythech

function u(t) {

c.width|=0
with(x)for(i=1e3;i--;fill())beginPath(fillStyle=i%2?'#fffe':`hsl(${t*i/3},99%,50%)`),arc(60*(i/3)-t*74,500+400*S(i*t/30),200,0,9)

Jun 22 2018 6:06 AM UTC

}// 140/140

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#waitforit

u/Galaxtone

Oh my gawd, it just keeps going
u/Galaxtone

I like the bits when it gets stable and makes a line of rainbow, and... it's gone.
u/pythech

#epilepsy alert

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DataMeta

remix of d/8412 by u/DataMeta

function u(t) {

p=Math.PI;r=Math.random();for(i=0;i<300;i++)x.fillStyle=R(i,i,i),x.fillRect(960+p*i*S(t+i*.9),540+S(t/7+i/p)*i*1.559,T(t/2)*r*2,T(t+i)*r*2)

Jun 22 2018 2:42 AM UTC

}// 139/140

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u/magna

Very stylish!
u/Xen

i love it!

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Kobrasadetin

function u(t) {

for(z=b=45,t=T(t/b)*b,t+=C(t)/b,i=0;i<b*b;j=i%b-1,k=i/b>>0,x.fillRect(j*b,k*b,b,b),z=305*(S(C(j)*t)*S(C(k)*t)+.4),i++)x.fillStyle=R(z,2*z,z)

Jun 21 2018 11:05 AM UTC

}// 140/140

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u/S.T.L.K.R.

İyi bayramlar
u/hope4tg

Muazzam
u/pythech

İyi bayramlar, u/S.T.L.K.R.
u/joeytwiddle

QR code reader's nightmare
u/DataMeta

Super neat

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