P006_PositionMath

using UnityEngine;
using System.Collections;

public class PositionMath {

    // This method converts a distance and angle (polar coordinates)
    public static Vector3 PolarToCart(float distance, float angle)
    {
        Vector3 cartPosition = new Vector3(distance * Mathf.Cos(angle), 0, distance * Mathf.Sin(angle));

        return cartPosition;
    }

    // This method returns a random angle between 0 and 2*PI
    public static float RandomAngle()
    {
        float angle = Random.Range(0, 2 * Mathf.PI);

        return angle;
    }

    // This method creates a random polar coordinate then converts and returns it as a Cartesian coordinate
    public static Vector3 RandomPosition(float minRad, float maxRad)
    {
        float distance = Random.Range(minRad, maxRad);
        float angle = RandomAngle();

        Vector3 cartPosition = PolarToCart(distance, angle);

        return cartPosition;
    }

    // This method creates a positon for a planet based on its number in the planetList (see Star Class)
    public static Vector3 PlanetPosition(int planetListNumber)
    {
        float distance = (planetListNumber + 1) * 5;
        float angle = RandomAngle();

        Vector3 cartPosition = PolarToCart(distance, angle);

        return cartPosition;
    }

    /*
    Copyright Shadowplay Coding 2017 - see www.shadowplaycoding.com for licensing details
    Removing this comment forfits any rights given to the user under licensing.
    */

}