PIbd-21_Putintsev_D.M._Road.../RoadTrain/SetGeneric.cs

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C#
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using System;
2023-12-05 20:02:05 +04:00
using RoadTrain.Exceptions;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace RoadTrain.Generics
{
internal class SetGeneric<T>
where T : class
{
/// <summary>
/// Массив объектов, которые храним
/// </summary>
private readonly List<T?> _places;
/// <summary>
/// Количество объектов в массиве
/// </summary>
public int Count => _places.Count;
/// <summary>
/// Конструктор
/// </summary>
/// <param name="count"></param>
private readonly int _maxCount;
public SetGeneric(int count)
{
_maxCount = count;
_places = new List<T?> (count);
}
/// <summary>
/// Добавление объекта в набор
/// </summary>
/// <returns></returns>
public int Insert(T train)
{
return Insert(train, 0);
}
/// <summary>
/// Добавление объекта в набор на конкретную позицию
/// </summary>
/// <param name="car">Добавляемый автомобиль</param>
/// <param name="position">Позиция</param>
/// <returns></returns>
public int Insert(T train, int position)
{
if (position < 0 || position >= _maxCount)
throw new StorageOverflowException("Невалидная операция");
if (Count >= _maxCount)
throw new StorageOverflowException(_maxCount);
_places.Insert(position, train);
return position;
}
/// <summary>
/// Удаление объекта из набора с конкретной позиции
/// </summary>
/// <param name="position"></param>
/// <returns></returns>
public bool Remove(int position)
{
if (position >= Count || position < 0)
{
throw new TrainNotFoundException("Невалидная операция");
}
if (_places[position] == null)
{
throw new TrainNotFoundException(position);
}
_places[position] = null;
return true;
}
/// <summary>
/// Получение объекта из набора по позиции
/// </summary>
/// <param name="position"></param>
/// <returns></returns>
public T? this[int position]
{
get
{
if ((position < 0) || (position >= Count)) return null;
return _places[position];
}
set
{
if ((position < 0) || (position > _maxCount)) return;
_places[position] = value;
}
}
public IEnumerable<T?> GetTrains(int? maxTrains = null)
{
for (int i = 0; i < _places.Count; ++i)
{
yield return _places[i];
if (maxTrains.HasValue && i == maxTrains.Value)
{
yield break;
}
}
}
}
}