77 lines
1.9 KiB
C#
77 lines
1.9 KiB
C#
using Battleship.Exceptions;
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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 Battleship.Generics
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{
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internal class SetGeneric<T>
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where T : class
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{
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private readonly List<T?> _places;
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public int Count => _places.Count;
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private readonly int _maxCount;
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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?>(_maxCount);
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}
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public bool Insert(T ship)
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{
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return Insert(ship, 0);
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}
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public bool Insert(T ship, int position)
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{
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if (position < 0 || position >= _maxCount)
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throw new ShipNotFoundException(position);
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if (Count >= _maxCount)
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throw new StorageOverflowException(_maxCount);
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_places.Insert(0, ship);
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return true;
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}
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public bool Remove(int position)
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{
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if (position < 0 || position > _maxCount || position >= Count)
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throw new ShipNotFoundException(position);
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_places.RemoveAt(position);
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return true;
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}
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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 >= Count)
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return null;
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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 > _maxCount || Count == _maxCount)
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return;
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_places[position] = value;
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}
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}
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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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