GaussianDistribution.cs

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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;
 
public class GaussianDistribution : System.Random
{
    private double u1;
    private double u2;
    private double temp1;
    private double temp2;
 
    public GaussianDistribution( int seed ) : base( seed )
    {
    }
 
    public GaussianDistribution() : base()
    {
    }
 
    public double RandomGauss( double mu = 0, double sigma = 1 )
    {
        if (sigma <= 0)
            throw new ArgumentOutOfRangeException("sigma", "Must be greater than zero.");
 
        u1 = base.NextDouble();
        u2 = base.NextDouble(); 
        temp1 = Math.Sqrt( -2 * Math.Log( u1 ) );
        temp2 = 2 * Math.PI * u2;
 
        return mu + sigma * ( temp1 * Math.Cos( temp2 ) );
    }
 
}