Dweets awesomed by u/hope4tg

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: #Opposites

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BackendForth

function u(t) {

c.width=1920
for(i=0;i<1920;i+=4)
{s=i/99-t*4%27+5
w=Math.pow(2,-s*s)*99+9
x.fillRect(i,540-w/2+S(i/43)*9+(i>960?i/2-480:0)*(i%8?1:-1),8,w)}

Jan 4 2018 1:11 AM UTC

}// 140/140

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u/justinwzig

This rocks
u/magna

Awesome!
u/lurifax

Smooth!
u/sigveseb

Niiice
u/jbl

beautiful!
u/Bugsy

Golfed and slightly cleaned at https://www.dwitter.net/d/5543. Have fun with the extra characters!
u/Bugsy

(cleaned is referring to some slight blockiness on the right side of the animation, not the code. My code is much uglier :P)
u/BackendForth

Neat! TIL Javascript accepts python notation for exponents.
u/ETHproductions

Golfed even further at https://www.dwitter.net/d/5601. Now there's 30 extra chars to play around with :-)
u/mohd-akram

I was expecting it to open like a zip :D
u/lionleaf

#feynman #feynman_diagram #organic #quantum_field_theory
u/lionleaf

#zip
u/rodrigo.siqueira

Neural sign propagating through axon terminals
u/rodrigo.siqueira

#neural
u/rodrigo.siqueira

#neuralnetwork

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hoplite

function u(t) {

i=c.width=96;for(;i--;)for(k=54;k--;)A=t=>(S(i/9+t)*S(k/7)+S(k/9+t)*S(i/7-t))*255,x.fillStyle=R(A(t),A(t+.2),A(t+.4)),x.fillRect(i,k,1,1)

Jan 2 2018 10:57 PM UTC

}// 137/140

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u/Xen

very nice style
u/sigveseb

Quite excellent, very nice
u/joeytwiddle

Lush
u/magna

Wow! Nice!
u/crimbles

That's so nice
u/Chipnstein

Woah... new dosktop background
u/codeslaw

Yes
u/joeytwiddle

#plasma #metaballs #color
u/vain

nice plasma like fx

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Xen

remix of d/3167 by u/Xen

function u(t) {

for(i=c.width|=0;i--;x.fillRect(960+S(p=.9*i+S(t)*3e3/i*S(t))*(d=i*i/1e3)-i*C(t),540+C(p)*d-i*S(t),s,s))x.fillStyle=R(Z=t*i%255,s=i/5,255-Z)

Jan 2 2018 9:31 PM UTC

}// 140/140

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u/jbl

WOW! 💯
u/lionleaf

Testing new links u/Xen
u/Xen

Yay! d/5309
u/donbright

i would have said this was impossible if i didnt see it
u/lionleaf

#alien #needle #color #floppy #rotation
u/sybarita

Yo what ... this is amazing
u/mrperson59

Is this what sleeping beauty pricked her finger on?

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hoplite

function u(t) {

x.fillRect(0,0,i=w=c.width=2e3,w);x.fillStyle="#fff";for(;i--;)T=t*99,z=w*99/(i-T%1),a=i+T-T%1,x.fillRect(C(a*a)*z+1e3,C(a*w)*z+500,w/i,w/i)

Jan 1 2018 11:14 PM UTC

}// 140/140

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u/eyalcohen4

Starwarsy
u/iverjo

#stars
u/zbstof

Reminds me of Windows 3.11 #screensaver - Starfield

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nickd3000

function u(t) {

for(i=0;i<23;i++)g=200*((5*t+i|0)%2),x.fillStyle=R(g,g,g),x.fillRect(80*i,5,80,20);x.drawImage(c,-5,5,1930,1080+5*S(t));

Jan 1 2018 5:36 PM UTC

}// 120/140

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u/E-Mouse

My brain hurts...
u/CliffJonesJr

I love how this might look like the floor is sloping, or it might not. So trippy. It would be nice to avoid that flashy bit at the top though. Maybe in a remix?
u/iverjo

#chess
u/joeytwiddle

#warping
u/katkip

#3d
u/katkip

#d3 #templeofsolomonfloor #perspective
u/katkip

#checkerboard

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E-Mouse

function u(t) {

e='1 2 + 100 *',e=e.split(' '),s=[]
for(i in e){o=e[i],n=+o;if(n==o)s.push(n);else q=s.pop(),w=s.pop(),s.push(eval(w+o+q))}x.fillText(s,9,9)

Dec 30 2017 1:00 PM UTC

}// 140/140

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A RPN(reverse polish notation) calculator in 140 bytes. The text is really small so either you have to zoom in or change the font size.

u/E-Mouse

Enter the RPN code in the e variable ("e='1 2 + * 10'")
u/E-Mouse

Btw only js operators

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hope4tg

remix of d/4036 by u/hope4tg

function u(t) {

for(i=0;i<180;i++){
x.fillStyle=`hsl(${t/5+t*500},71%,57%)`
x.fillRect(i*25, 480, 35, S((t+i)*(2*S(t)))*300)
}

Dec 27 2017 6:34 PM UTC

}// 110/140

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Trippy strip

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hope4tg

function u(t) {

function q(n){for(i=2;i<n;i++)if(n%i==0)return 0;return n>1;}for(w=0;w<37;w++)for(h=0;h<37;h++){if(q(h*37+w))x.fillRect(w*15,h*15,12,12)}

Dec 27 2017 6:02 PM UTC

}// 137/140

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Some prime number shenanigans. Sorry if this slows your browser down, it is not exactly an animation and I could not fit a clear in.

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GingerNins

remix of d/3898 by u/Exquisite

function u(t) {

c.width=1920;q=999;for(i=1;i<q;i++){p=i%255;r=10+i*.01;x.fillStyle=R(p,p,p,i/q);x.fillRect(960+i*C(i),540+i*.5+C(C(t*0.6)*i*0.015)*80,r,r);}

Dec 27 2017 4:26 PM UTC

}// 140/140

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hope4tg

remix of d/4027 by u/human

function u(t) {

for(i=0;i<180;i++){
x.fillStyle=R(t*20,S(t)*255,255-t*30)
x.fillRect(i*25, 540, 20, S((t+i)*3)*300)
}

Dec 27 2017 1:27 PM UTC

}// 102/140

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