PIbd-11_Abakarov_A.A_Simple/ProjectFighterJet/CollectionGenericObjects/MassiveGenericObjects.cs

using ProjectFighterJet.Drawnings;
namespace ProjectFighterJet.CollectionGenericObjects;

public class MassiveGenericObjects<T> : ICollectionGenericObjects<T>
where T : class
{
    /// <summary>
    /// Массив объектов, которые храним
    /// </summary>
    private T?[] _collection;

    public int Count => _collection.Length;

    public int SetMaxCount
    {
        set
        {
            if (value > 0)
            {
                if (_collection.Length > 0)
                {
                    Array.Resize(ref _collection, value);
                }
                else
                {
                    _collection = new T?[value];
                }
            }
        }
    }
    /// <summary>
    /// Конструктор
    /// </summary>
    public MassiveGenericObjects()
    {
        _collection = Array.Empty<T?>();
    }

    public T? Get(int position)
    {
        // TODO проверка позиции
        if (position >= _collection.Length || position < 0) return null;
        return _collection[position];
    }

    public int Insert(T obj)
    {
        // TODO вставка в свободное место набора
        int index = 0;
        while (index < _collection.Length)
        {
            if (_collection[index] == null)
            {
                _collection[index] = obj;
                return index;
            }
            index++;
        }
        return -1;
    }

    public int Insert(T obj, int position)
    {
        if (position >= _collection.Length || position < 0) return -1;
        if (_collection[position] == null)
        {
            _collection[position] = obj;
            return position;
        }
        int index = position + 1;
        while (index < _collection.Length)
        {
            if (_collection[index] == null)
            {
                _collection[index] = obj;
                return index;
            }
            index++;
        }
        index = position - 1;
        while (index >= 0)
        {
            if (_collection[index] == null)
            {
                _collection[index] = obj;
                return index;
            }
            index--;
        }
        return -1;
    }

    public T? Remove(int position)
    {
        if (position >= _collection.Length || position < 0) return null;
        T temp = _collection[position];
        _collection[position] = null;
        return temp;
    }
}