104 lines
3.1 KiB
C#
104 lines
3.1 KiB
C#
namespace AirplaneWithRadar
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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 SetAirplanesGeneric<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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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 SetAirplanesGeneric(int count)
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{
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_maxCount = count;
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_places = new List<T>();
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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="airplane">Добавляемый самолёт</param>
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/// <returns></returns>
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public int Insert(T airplane)
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{
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return Insert(airplane, 0);
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}
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private bool isCorrectPosition(int position)
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{
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return 0 <= position && position < _maxCount;
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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="airplane">Добавляемый самолет</param>
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/// <param name="position">Позиция</param>
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/// <returns></returns>
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public int Insert(T airplane, int position)
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{
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if (!isCorrectPosition(position))
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{
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return -1;
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}
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_places.Insert(position, airplane);
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return position;
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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 T Remove(int position)
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{
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if (!isCorrectPosition(position)) return null;
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var result = _places[position];
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_places.RemoveAt(position);
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return result;
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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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return isCorrectPosition(position) && position < Count ? _places[position] : null;
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}
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set
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{
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Insert(value, position);
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}
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}
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public IEnumerable<T> GetAirplanes()
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{
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foreach (var airplane in _places)
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{
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if (airplane != null)
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{
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yield return airplane;
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}
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else
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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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