75 lines
1.9 KiB
C#
75 lines
1.9 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Text;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace DoubleDeckerbus.Generic
|
|
{
|
|
internal class SetGeneric<T>
|
|
where T : class
|
|
{
|
|
private readonly List<T?> _places;
|
|
public int Count => _places.Count;
|
|
private readonly int _maxCount;
|
|
public SetGeneric(int count)
|
|
{
|
|
_maxCount = count;
|
|
_places = new List<T?>(count);
|
|
}
|
|
public int Insert(T bus)
|
|
{
|
|
_places.Insert(0, bus); //0
|
|
return 0;
|
|
}
|
|
public bool Insert(T bus, int position)
|
|
{
|
|
if (position < 0 || position >= Count || Count >= _maxCount)
|
|
{
|
|
return false;
|
|
}
|
|
_places.Insert(position, bus);
|
|
return true;
|
|
}
|
|
public bool Remove(int position)
|
|
{
|
|
if (position < 0 || position >= Count)
|
|
{
|
|
return false;
|
|
}
|
|
_places.RemoveAt(position);
|
|
return true;
|
|
}
|
|
public T? this[int position]
|
|
{
|
|
get
|
|
{
|
|
if (position < 0 || position >= Count)
|
|
{
|
|
return null;
|
|
}
|
|
return _places[position];
|
|
}
|
|
set
|
|
{
|
|
if (position < 0 || position > Count || Count >= _maxCount)
|
|
{
|
|
return;
|
|
}
|
|
_places.Insert(position, value);
|
|
}
|
|
}
|
|
public IEnumerable<T?> GetBus(int? maxBus = null)
|
|
{
|
|
for (int i = 0; i < _places.Count; ++i)
|
|
{
|
|
yield return _places[i];
|
|
if (maxBus.HasValue && i == maxBus.Value)
|
|
{
|
|
yield break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|