Сравнение объектов

Airbus/Airbus/DrawningObjectPlane.cs

@@ -33,5 +33,53 @@ namespace Airbus
         }
         public string GetInfo() => _plane?.GetDataForSave();
         public static IDrawningObject Create(string data) => new DrawningObjectPlane(data.CreateDrawningPlane());
+
+        public bool Equals(IDrawningObject? other)
+        {
+            if (other == null)
+            {
+                return false;
+            }
+            var otherPlane = other as DrawningObjectPlane;
+            if (otherPlane == null)
+            {
+                return false;
+            }
+            var plane = _plane.Plane;
+            var otherPlanePlane = otherPlane._plane.Plane;
+            if (plane.Speed != otherPlanePlane.Speed)
+            {
+                return false;
+            }
+            if (plane.Weight != otherPlanePlane.Weight)
+            {
+                return false;
+            }
+            if (plane.BodyColor != otherPlanePlane.BodyColor)
+            {
+                return false;
+            }
+
+            if (plane is EntityAirbus airbus && otherPlanePlane is EntityAirbus otherAirbus)
+            {
+                if (airbus.DopColor != otherAirbus.DopColor)
+                {
+                    return false;
+                }
+                if (airbus.BodyKit != otherAirbus.BodyKit)
+                {
+                    return false;
+                }
+                if (airbus.Wing != otherAirbus.BodyKit)
+                {
+                    return false;
+                }
+                if (airbus.SportLine != otherAirbus.SportLine)
+                {
+                    return false;
+                }
+            }
+            return true;
+        }
     }
 }

Airbus/Airbus/IDrawningObject.cs

@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace Airbus
 {
-    internal interface IDrawningObject
+    internal interface IDrawningObject : IEquatable<IDrawningObject>
     {
         /// <summary>
         /// Шаг перемещения объекта

Airbus/Airbus/MapWithSetPlanesGeneric.cs

@@ -7,7 +7,7 @@ using System.Threading.Tasks;
 namespace Airbus
 {
     internal class MapWithSetPlanesGeneric<T, U>
-            where T : class, IDrawningObject
+            where T : class, IDrawningObject, IEquatable<T>
             where U : AbstractMap
     {
         /// <summary>

Airbus/Airbus/SetPlanesGeneric.cs

@@ -7,7 +7,7 @@ using System.Threading.Tasks;
 namespace Airbus
 {
     internal class SetPlanesGeneric<T>
-        where T : class
+        where T : class, IEquatable<T>
     {
         /// <summary>
         /// Список объектов, которые храним
@@ -48,6 +48,10 @@ namespace Airbus
         {
             // TODO проверка позиции
             // TODO вставка по позиции
+            if (_places.Contains(plane))
+            {
+                return -1;
+            }
             if (_places.Count == _maxCount) throw new StorageOverflowException(_maxCount);
             _places.Insert(position, plane);
             return position;