### hairy square

Some random walks away from a square's edge.

```// You can find the Turtle API reference here: https://turtletoy.net/syntax
Canvas.setpenopacity(-1);

// Global code will be evaluated once.
const turtle = new Turtle();

function turtle_start() {
turtle.penup();
let side = Math.floor(Math.random()*4);
let position = Math.random()*100-50;
let angle = Math.random()*180;
if (side == 0) {
turtle.goto(-50,position);
turtle.seth(angle+90);
}
if (side == 1) {
turtle.goto(position, -50);
turtle.seth(angle+180);
}
if (side == 2) {
turtle.goto(50, position);
turtle.seth(angle+270);
}
if (side == 3) {
turtle.goto(position, 50);
turtle.seth(angle);
}
turtle.pendown();
}

turtle_start();

function turtle2_start() {
turtle.penup();
let side = Math.floor(Math.random()*4);
let position = Math.random()*80-40;
let angle = Math.random()*180;
if (side == 0) {
turtle.goto(-40,position);
turtle.seth(angle+270);
}
if (side == 1) {
turtle.goto(position, -40);
turtle.seth(angle);
}
if (side == 2) {
turtle.goto(40, position);
turtle.seth(angle+90);
}
if (side == 3) {
turtle.goto(position, 40);
turtle.seth(angle+180);
}
turtle.pendown();
}

let outer = true;

// The walk function will be called until it returns false.
function walk(i) {
turtle.forward(1);
turtle.lt((Math.random()-0.5)*50);
if (outer) {
if (Math.random() < 0.1 || (turtle.x() < 50 && turtle.x() > -50 && turtle.y() < 50 && turtle.y() > -50)) {
if (i<5000) {
turtle_start();
}
else {
outer = false;
turtle2_start();
}
}
} else {
if (Math.random() < 0.1 || (turtle.x() > 40 || turtle.x() < -40 || turtle.y() > 40 || turtle.y() < -40)) {
turtle2_start();
}
}
return i < 10000;
}```