шаг первый

AirFighter/AirFighter/CollectionGenericObjects/ListGenericObjects.cs

@@ -1,4 +1,6 @@
-namespace ProjectAirFighter.CollectionGenericObjects;
+using ProjectSportCar.Exceptions;
+
+namespace ProjectAirFighter.CollectionGenericObjects;
 
 /// <summary>
 /// Параметризованный набор объектов
@@ -46,31 +48,31 @@ public class ListGenericObjects<T> : ICollectionGenericObjects<T>
 
     public T? Get(int position)
     {
-        if (position >= Count || position < 0) return null;
+        if (position >= Count || position < 0) throw new PositionOutOfCollectionException();
         return _collection[position];
     }
 
     public int Insert(T obj)
     {
-        if (Count + 1 > _maxCount) return -1;
+        if (Count + 1 > _maxCount) throw new CollectionOverflowException();
         _collection.Add(obj);
         return Count;
     }
 
     public int Insert(T obj, int position)
     {
-        if (Count + 1 > _maxCount) return -1;
-        if (position < 0 || position > Count) return -1;
+        if (Count + 1 > _maxCount) throw new CollectionOverflowException();
+        if (position < 0 || position > Count) throw new PositionOutOfCollectionException();
         _collection.Insert(position, obj);
-        return 1;
+        return position;
     }
 
     public T? Remove(int position)
     {
-        if (position < 0 || position > Count) return null;
-        T? pos = _collection[position];
+        if (position >= Count || position < 0) throw new PositionOutOfCollectionException();
+        T temp = _collection[position];
         _collection.RemoveAt(position);
-        return pos;
+        return temp;
     }
 
     public IEnumerable<T?> GetItems()

AirFighter/AirFighter/CollectionGenericObjects/MassiveGenericObjects.cs

@@ -1,4 +1,6 @@
-namespace ProjectAirFighter.CollectionGenericObjects;
+using ProjectSportCar.Exceptions;
+
+namespace ProjectAirFighter.CollectionGenericObjects;
 
 /// <summary>
 /// Параметризованный набор объектов
@@ -48,66 +50,62 @@ public class MassiveGenericObjects<T> : ICollectionGenericObjects<T>
 
     public T? Get(int position)
     {
-        if (position >= _collection.Length || position < 0)
-        { return null; }
+        if (position < 0 || position >= Count) throw new PositionOutOfCollectionException();
+        if (_collection[position] == null) throw new ObjectNotFoundException();
         return _collection[position];
     }
 
     public int Insert(T obj)
     {
-        int index = 0;
-        while (index < _collection.Length)
+        for (int i = 0; i < Count; i++)
         {
-            if (_collection[index] == null)
+            if (_collection[i] == null)
             {
-                _collection[index] = obj;
-                return index;
+                _collection[i] = obj;
+                return i;
             }
-
-            index++;
         }
-        return -1;
+        throw new CollectionOverflowException();
     }
 
     public int Insert(T obj, int position)
     {
-        if (position >= _collection.Length || position < 0)
-        { return -1; }
-
+        if (position >= Count || position < 0) throw new PositionOutOfCollectionException();
         if (_collection[position] == null)
         {
             _collection[position] = obj;
             return position;
         }
-        int index;
-
-        for (index = position + 1; index < _collection.Length; ++index)
+        int temp = position + 1;
+        while (temp < Count)
         {
-            if (_collection[index] == null)
+            if (_collection[temp] == null)
             {
-                _collection[position] = obj;
-                return position;
+                _collection[temp] = obj;
+                return temp;
             }
+            ++temp;
         }
-
-        for (index = position - 1; index >= 0; --index)
+        temp = position - 1;
+        while (temp >= 0)
         {
-            if (_collection[index] == null)
+            if (_collection[temp] == null)
             {
-                _collection[position] = obj;
-                return position;
+                _collection[temp] = obj;
+                return temp;
             }
+            --temp;
         }
-        return -1;
+        throw new CollectionOverflowException();
     }
 
     public T? Remove(int position)
     {
-        if (position >= _collection.Length || position < 0)
-        {
-            return null;
-        }
-        T obj = _collection[position];
+        if (position < 0 || position >= Count) throw new PositionOutOfCollectionException(position);
+
+        if (_collection[position] == null) throw new ObjectNotFoundException(position);
+
+        T? obj = _collection[position];
         _collection[position] = null;
         return obj;
     }

AirFighter/AirFighter/Exceptions/CollectionOverflowException.cs

@@ -0,0 +1,20 @@
+using System.Runtime.Serialization;
+
+namespace ProjectSportCar.Exceptions;
+
+/// <summary>
+/// Класс, описывающий ошибку переполнения коллекции
+/// </summary>
+[Serializable]
+internal class CollectionOverflowException : ApplicationException
+{
+    public CollectionOverflowException(int count) : base("В коллекции превышено допустимое количество: " + count) { }
+
+    public CollectionOverflowException() : base() { }
+
+    public CollectionOverflowException(string message) : base(message) { }
+
+    public CollectionOverflowException(string message, Exception exception) : base(message, exception) { }
+
+    protected CollectionOverflowException(SerializationInfo info, StreamingContext contex) : base(info, contex) { }
+}

AirFighter/AirFighter/Exceptions/ObjectNotFoundException.cs

@@ -0,0 +1,20 @@
+using System.Runtime.Serialization;
+
+namespace ProjectSportCar.Exceptions;
+
+/// <summary>
+/// Класс, описывающий ошибку, что по указанной позиции нет элемента
+/// </summary>
+[Serializable]
+internal class ObjectNotFoundException : ApplicationException
+{
+    public ObjectNotFoundException(int i) : base("Не найден объект по позиции " + i) { }
+
+    public ObjectNotFoundException() : base() { }
+
+    public ObjectNotFoundException(string message) : base(message) { }
+
+    public ObjectNotFoundException(string message, Exception exception) : base(message, exception) { }
+
+    protected ObjectNotFoundException(SerializationInfo info, StreamingContext contex) : base(info, contex) { }
+}

AirFighter/AirFighter/Exceptions/PositionOutOfCollectionException.cs

@@ -0,0 +1,20 @@
+using System.Runtime.Serialization;
+
+namespace ProjectSportCar.Exceptions;
+
+/// <summary>
+/// Класс, описывающий ошибку выхода за границы коллекции
+/// </summary>
+[Serializable]
+internal class PositionOutOfCollectionException : ApplicationException
+{
+    public PositionOutOfCollectionException(int i) : base("Выход за границы коллекции. Позиция " + i) { }
+
+    public PositionOutOfCollectionException() : base() { }
+
+    public PositionOutOfCollectionException(string message) : base(message) { }
+
+    public PositionOutOfCollectionException(string message, Exception exception) : base(message, exception) { }
+
+    protected PositionOutOfCollectionException(SerializationInfo info, StreamingContext contex) : base(info, contex) { }
+}