120 lines
3.7 KiB
C#
120 lines
3.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace Liner.Generics
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{
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/// <summary>
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/// Параметризованный набор объектов
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/// </summary>
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/// <typeparam name="T"></typeparam>
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public class SetGeneric<T>
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where T : class
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{
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/// <summary>
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/// Массив объектов, которые храним
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/// </summary>
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private readonly List<T?> _places;
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/// <summary>
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/// Количество объектов в массиве
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/// </summary>
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public int Count => _places.Capacity;
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/// <summary>
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/// Максимальное количество объектов в списке
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/// </summary>
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private readonly int _maxCount;
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/// <summary>
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/// Конструктор
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/// </summary>
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/// <param name="count"></param>
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public SetGeneric(int count)
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{
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_maxCount = count;
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_places = new List<T?>(count);
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}
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/// <summary>
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/// Добавление объекта в набор
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/// </summary>
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/// <param name="liner">Добавляемый лайнер</param>
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/// <returns></returns>
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public int Insert(T liner)
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{
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if (_places.Count + 1 <= _maxCount)
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{
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_places.Insert(0, liner);
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return 0;
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}
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return -1;
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}
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/// <summary>
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/// Добавление объекта в набор на конкретную позицию
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/// </summary>
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/// <param name="liner">Добавляемый лайнер</param>
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/// <param name="position">Позиция</param>
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/// <returns></returns>
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public int Insert(T liner, int position)
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{
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if (_places.Count + 1 <= _maxCount && _places.Count >= position)
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{
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_places.Insert(position, liner);
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return position;
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}
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return -1;
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}
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/// <summary>
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/// Удаление объекта из набора с конкретной позиции
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/// </summary>
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/// <param name="position"></param>
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/// <returns></returns>
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public bool Remove(int position)
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{
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if(_places.Count >= position && position >= 0)
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{
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_places.RemoveAt(position);
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return true;
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}
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return false;
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}
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/// <summary>
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/// Получение объекта из набора по позиции
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/// </summary>
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/// <param name="position"></param>
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/// <returns></returns>
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public T? this[int position]
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{
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get
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{
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if (_places.Count >= position && position >= 0)
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{
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return _places[position];
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}
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return null;
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}
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set
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{
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if(_places.Count + 1 <= _maxCount && position >= 0 && _places.Count > position)
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{
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_places[position] = value;
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}
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}
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}
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/// <summary>
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/// Проход по списку
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/// </summary>
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/// <returns></returns>
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public IEnumerable<T?> GetLiners(int? maxLiners = null)
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{
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for (int i = 0; i < _places.Count; ++i)
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{
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yield return _places[i];
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if (maxLiners.HasValue && i == maxLiners.Value)
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{
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yield break;
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}
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}
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}
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}
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}
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