### The mold

Different oscillations thrown together without any sort of idea

```// Global code will be evaluated once.
Canvas.setpenopacity(.3);

const turtle = new Turtle();
turtle.rect =
{
w:200, h:200,
get tl(){ return {x:this.w/-2,y:this.h/-2}; },
get l(){ return {x:this.w/-2,y:0}; }
};
turtle.wrap = function()
{
// move all to Q1
w = this.rect.h, h = this.rect.h;
x = this.x() + w/2, y = this.y() + h/2;

// no need to wrap?
if (x >= 0 && x <= w && y >= 0 && y <= h) return;

// wrap
while (x < 0) x += w;
x = x % w;
while (y < 0) y += h;
y = y % h;

// move back to center and don't draw wrapped lines
this.penup();
this.setx( x-w/2 );
this.sety( y-h/2 );
this.pendown();
}
// Helpers
function D2R(a){ return a / 180 * Math.PI; }
//turtle.penup();
//turtle.goto(rect.l.x, rect.l.y);
//turtle.pendown();
seed = Math.random()*1800;
// The walk function will be called until it returns false.
function walk(i)
{
bend = 3 - i / seed;
dir = 10 + i / 14;

d1 = dir + Math.sin(D2R(i*bend));
d2 = bend + Math.cos(D2R(i/306));

turtle.forward(1);
turtle.seth( turtle.h() + d1 * d2);

turtle.wrap();

return i < 100000;
}```