Canvas.setpenopacity(1);

const size = 80;
const perlinSize = 4;

const turtle = new Turtle();
turtle.penup();
turtle.goto(-50, -20);
turtle.pendown();

class Perlin {
    constructor(size, gridSize) {
        this.size = size;
        this.gridSize = gridSize;
        this.grid = [];
        
        for (let i = 0; i <= gridSize; i++) {
            let table = [];
            for (let j = 0; j <= gridSize; j++) {
                let angle = Math.random() * 2 * Math.PI;
                let x = Math.cos(angle);
                let y = Math.sin(angle);
                table.push([x, y]);
            }
            this.grid.push(table);
        }
    }

    get(x, y) {
        x = x / 3 + this.size / 2;
        y = y / 1.5 + this.size / 2;
        // TODO: Implement interpolation
        return Math.sin(x) * Math.cos(y); // placeholder
    }
}

let perlin = new Perlin(size, perlinSize);

function walk(i) {
    turtle.forward(100);
    turtle.right(144);
    turtle.left(10);
    return i < 100; // run more steps
}