134 lines
3.7 KiB
C#
134 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 WarmlyShip.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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internal class SetGeneric<T>
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where T : class
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{
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/// <summary>
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/// Список 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 списке
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/// </summary>
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public int Count => _places.Count;
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/// <summary>
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/// Максимальное количество объектов в cписке
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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="ship">Добавляемый корабль</param>
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/// <returns></returns>
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public bool Insert(T ship)
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{
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if (_places.Count == _maxCount)
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{
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return false;
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}
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Insert(ship, 0);
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return true;
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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="ship">Добавляемый корабль</param>
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/// <param name="position">Позиция</param>
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/// <returns></returns>
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public bool Insert(T ship, int position)
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{
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if (!(position >= 0 && position <= Count && _places.Count < _maxCount))
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{
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return false;
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}
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_places.Insert(position, ship);
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return true;
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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 (position < 0 || position >= Count)
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{
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return false;
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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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/// <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 (position < 0 || position >= _maxCount)
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{
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return null;
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}
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return _places[position];
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}
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set
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{
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if (!(position >= 0 && position < Count && _places.Count < _maxCount))
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{
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return;
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}
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_places.Insert(position, value);
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return;
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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?> GetShips(int? maxShips = 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 (maxShips.HasValue && i == maxShips.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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