Dweets awesomed by u/laynehobby

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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lowpoly

remix of d/5473 by u/lowpoly

function u(t) {

s=10;x.drawImage(c,s,0);for(i=0;i<=c.height;i+=s)x.fillRect(0,i,s,s,x.fillStyle=`hsl(${i/c.height*C(t*i*3)*255},100%,50%)`);

Jan 4 2018 12:14 PM UTC

}// 124/140

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play with x.fillStyle;-)

u/lowpoly

For example, x.fillStyle=Math.random()>0.5?'#000':'#fff'
u/lowpoly

or x.fillStyle=(~~(i/s/s)%2)^(~~(t*s)%2)?'#000':'#fff'
u/sigveseb

So intense colors!

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laynehobby

function u(t) {

c.width=y=m=256
a=C(t)
for(;y--;)x.fillStyle=R(y*a||m,(y?m-y:m)*a,y&&m*a),x.beginPath(),x.arc(128,y?y-1e3:m-m*a,y?1e3:50,y&7,8),x.fill()

Jan 4 2018 6:29 AM UTC

}// 137/140

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u/magna

Great!
u/Xen

very nice
u/laynehobby

thanks!
u/iverjo

Nice colors!
u/M1T0

cool idea
u/joeytwiddle

#sunset

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jbl

remix of d/5314 by u/jbl

function u(t) {

c.width|=i=300
x.lineWidth=.1
while(--i)q=19+S(t/6)/28*i,x.arc(S(q/3)*i+q*60,(C(q*S(t/2))+4)*i/2+200,(C(q)*60+200)*S(i/96),0,7)
x.stroke()

Jan 4 2018 2:37 AM UTC

}// 138/140

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Show more comments…
u/magna

Nice!
u/nystrand

cool!
u/rikardlindstrom

love it!
u/iverjo

It looks organic
u/lionleaf

#balloon #organic #floppy
u/leonarven

Damn that looks impressive, still such simple! :)
u/skeletonNatte

Somehow pretty unsettling

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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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Show more comments…
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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p01

function u(t) {

for(c.width=n=128;n-=r=i=1/64;x.fillRect(n%2*64,n/2,k/32,1))for(Y=1-n*i,X=n%2-1,k=32;--k/r;i=j)j=2*r*i+X*S(t)-Y*C(t),r=r*r-i*i+Y*S(t)+X*C(t)

Jan 3 2018 9:41 PM UTC

}// 140/140

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Spinning Mandelbrot set

u/magna

We're going to need a bigger CPU.
u/iverjo

Nice effect! 22 FPS on my machine, in Firefox. Surprisingly, it runs much slower in Chrome and Edge (4 FPS)
u/sigveseb

Screeching by at 4FPS on my machine too :D nice mandelbrot though
u/donbright

feel like standing up and applauding. unbelievable.
u/rodrigo.siqueira

#mandelbrot #fractal

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laynehobby

function u(t) {

t||(s=speechSynthesis,o=new SpeechSynthesisUtterance("ootz"),o.pitch=0)
c.width=1
a=t%.7*4
a>.1||s.speaking||s.speak(o)
x.fillRect(0,0,a,a)

Jan 3 2018 6:51 AM UTC

}// 140/140

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u/joeytwiddle

#audio

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laynehobby

function u(t) {

w=c.width=2e3;
for(p=0;p<6.28;p+=.01){
x.fillRect(C(C(t)*p+t)*500+1e3,S(S(t)*S(t)*p+t)*500+500,C(t)*99,S(t)*99);
}

Jan 3 2018 6:00 AM UTC

}// 115/140

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laynehobby

remix of d/5009 by u/laynehobby

function u(t) {

x.fillRect(0,r=1,w=c.width=2003,w);
x.fillStyle="#fff";
for(i=2e2;i<7e2;i++){
x.fillRect((r+t*i*3+1990*i)%w,r%w,s=i%18,9-s);
r=r*2%w;
}

Jan 3 2018 5:05 AM UTC

}// 136/140

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brennan9629

function u(t) {

for(i=c.width|=2;i--;x.fillRect(960+S(p=.5*i+S(t)*3e3/i*S(t))*(d=i*i/2e3)-i*C(t),50+C(p)*d-i*S(t),s,s))x.fillStyle=R(Z=t*i%1515,s=i/3,55-Z)

Jan 3 2018 4:59 AM UTC

}// 139/140

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Zolden

function u(t) {

c.width|=0;for(k=0;k++<1999;){j=k%20;q=j*j;
i=k/20;p=255-q*j/30;x.fillStyle=R(p,p,p,1);x.fillRect((q+75)*i-q*(t+8)*3,q*2,q/2,j*40)}

Jan 2 2018 11:29 PM UTC

}// 131/140

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