Hot dweets by u/hamptonio

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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hamptonio

function u(t) {

s=t*9%32|0;for(i=0;i<6.3;i+=.001){k=16-s;q=s%2*255;x.fillStyle=R(q,0,s*8);x.fillRect(960+29*(k*C(i)+C(k*i)-k),540+29*(k*S(i)-S(k*i)),1,1);}

Feb 27 2017 5:26 AM UTC

}// 139/140

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Hypocycloids and epicycloids.

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hamptonio

remix of d/134 by u/icecuber

function u(t) {

r=Math.random;q=1;for(i=36;i--;)for(j=12;j--;)q+=.5-r()/2,x.setTransform(C(t+j),S(t+i),-S(t+j),C(t+i),i*66,j*99),x.fillRect(-9,-30,q/2,10)

Feb 25 2017 4:06 AM UTC

}// 138/140

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u/magna

I want a curtain like this in my living room!
u/joeytwiddle

That took me to http://www.pouet.net/prod.php?which=564#fukw…

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hamptonio

remix of d/123 by u/icecuber

function u(t) {

i=frame;s=99;for(j=1e3;j--;){a=b=0;for(k=s;k--&&a*a<4;)c=a*a-b*b+i/1e4,b=2*a*b+j/1e4+.6,a=c;x.fillStyle=R(k,s*(1+S(k)));x.fillRect(i,j,1,1)}

Feb 26 2017 9:44 PM UTC

}// 140/140

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u/donbright

never get tired of these! nice.
u/hamptonio

The colors can definitely be improved, I'm not real happy with it.

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hamptonio

function u(t) {

c.width=2e3;q=y=.1;z=C(t);for(i=0;i<9e3;i++){q+=.2*(y-.15*S(3*q))-q/1e3;y+=(q-y+z)*.04;z+=-.28*y;x.lineTo(q*300+900,y*800+400);}x.stroke()

Feb 26 2017 7:20 PM UTC

}// 138/140

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A Chua circuit-like ODE with chaotic attractors

u/donbright

brilliant!

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hamptonio

remix of d/1203 by u/vegolasse

function u(t) {

q=43;function a(r){x.arc(q+S(r/3)*400,q+S(r/2)*730,i,0,6.283);x.closePath()}c.width=q*q;for(i=0;i<q*q;i+=9){a(t);a(S(t))};x.fill("evenodd")

Feb 25 2017 1:10 AM UTC

}// 140/140

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seems like that evenodd method could do some other cool shit

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hamptonio

remix of d/601 by u/ose

function u(t) {

q=function(a){return (C(a)+1)*99};
for(i=-100;i<99;i++){
x.fillStyle=R(q(2*t+i),q(t*i),q(i+t),.01);
x.fillRect(i*40+q(t),6*q(t)-i,99,99);
}

Feb 25 2017 7:04 PM UTC

}// 139/140

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hamptonio

remix of d/1301 by u/walsh9

function u(t) {

r=Math.random,T=t*60|0,d=T%64*36,e=(T>>6)*36,s=r()>.5&&e>1,f=s?8:36,g=s?36:8,x.fillRect(d,e,f,g),x.strokeRect(0,0,1920,1080)

Feb 25 2017 4:24 PM UTC

}// 124/140

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Shortened it some without losing too much I think, not sure what to do with the extra room though.

u/sfz

write a maze solver :D

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hamptonio

function u(t) {

c.width=1920;for(i=0;i<t;i+=.005){x.lineTo(960+300*(2+C(3*(i+t)))*C(i+t+S(i*t)),540+180*(2+S(3*(i+t)+S(i)))*C(i+t+S(t)+S(i)));};x.stroke()

Feb 25 2017 5:18 AM UTC

}// 138/140

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hamptonio

function u(t) {

c.width=1920;q=y=8.48+1/t;z=27;for(i=0;i<5000;i++){q+=.1*(y-q);y+=.01*(q*(28-z)-y);z+=.01*(q*y-8*z/3);x.fillRect(q*20+900,y*20+500,3,3);}

Feb 24 2017 7:11 PM UTC

}// 137/140

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The Lorenz equations chaotic strange attractor

u/donbright

love this math / physics stuff!!!!
u/hamptonio

thanks! I'm better at math than javascript :)

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hamptonio

remix of d/1376 by u/cucumberOwl

function u(t) {

i=new Image();i.src="https://tinyurl.com/jgtokhq";x.drawImage(i,700+S(3*t+S(t))*500,200+C(t+S(2*t))*200,100+2*t*t,100+5*t*t);

Feb 26 2017 5:41 AM UTC

}// 125/140

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