using System;

using RidR;

namespace RidR.Extensions
{
    /// <summary>
    /// This class contains extension methods for types used in the RidR game.
    /// </summary>
    public static class RidRExtensions
    {
        /// <summary>
        /// Removes an element from an array at the speciefied index.
        /// </summary>
        /// <typeparam name="T">The type of the array.</typeparam>
        /// <param name="source">The array to remove an element from.</param>
        /// <param name="index">The index of the element to remove.</param>
        public static T[] RemoveAt<T>(this T[] source, int index)
        {
            T[] dest = new T[source.Length - 1];
            if (index > 0)
                Array.Copy(source, 0, dest, 0, index);

            if (index < source.Length - 1)
                Array.Copy(source, index + 1, dest, index, source.Length - index - 1);

            return dest;
        }

        /// <summary>
        /// Converts the value of this instance to its equivalent character representation.
        /// </summary>
        public static char toChar(this TileType tile)
        {
            switch (tile)
            {
                case TileType.Floor:
                    return 'F';
                case TileType.Rift:
                    return 'R';
                case TileType.Wall:
                    return 'W';
                case TileType.Crystal:
                    return 'C';
                default:
                    throw new ArgumentException("No valid TileType was provided.");

            }
        }
    }
}