BulletMLEquation.cs

using System;
using System.Diagnostics;

namespace BulletMLLib
{
	/// <summary>
	/// This is an equation used in BulletML nodes.
	/// This is an eays way to set up the grammar for all our equations.
	/// </summary>
	public class BulletMLEquation : Equationator.Equation
	{
		/// <summary>
		/// A randomizer for getting random values
		/// </summary>
		static private readonly Random GRandom = new Random(DateTime.Now.Millisecond);

		public BulletMLEquation()
		{
			//add the specific functions we will use for bulletml grammar
			AddFunction("rand", RandomValue);
			AddFunction("rank", GameDifficulty);
		}

		/// <summary>
		/// used as a callback function in bulletml euqations
		/// </summary>
		/// <returns>The value.</returns>
		public float RandomValue()
		{
			//this value is "$rand", return a random number
			return (float)GRandom.NextDouble();
		}

		public float GameDifficulty()
		{
			//This number is "$rank" which is the game difficulty.			
			return GameManager.GameDifficulty();
		}
	}
}