Сравнение объектов

GasolineTanker/GasolineTanker/DrawningObjectTanker.cs

@@ -38,5 +38,58 @@ namespace GasolineTanker
         }
         public string GetInfo() => _Tanker?.GetDataForSave();
         public static IDrawningObject Create(string data) => new DrawningObjectTanker(data.CreateDrawningTanker());
+
+        public bool Equals(IDrawningObject? other)
+        {
+            {
+                if (other == null)
+                {
+                    return false;
+                }
+                var otherTanker = other as DrawningObjectTanker;
+                if (otherTanker == null)
+                {
+                    return false;
+                }
+                var tanker = _Tanker.Tanker;
+                var otherTankerTanker = otherTanker._Tanker.Tanker;
+                if (tanker.GetType().Name != otherTankerTanker.GetType().Name)
+                {
+                    return false;
+                }
+                if (tanker.Speed != otherTankerTanker.Speed)
+                {
+                    return false;
+                }
+                if (tanker.Weight != otherTankerTanker.Weight)
+                {
+                    return false;
+                }
+                if (tanker.BodyColor != otherTankerTanker.BodyColor)
+                {
+                    return false;
+                }
+                if (tanker is EntityGasolineTanker gasolinetanker && otherTankerTanker is EntityGasolineTanker otherGasolineTanker)
+                {
+                    if (gasolinetanker.DopColor != otherGasolineTanker.DopColor)
+                    {
+                        return false;
+                    }
+                    if (gasolinetanker.Cabin != otherGasolineTanker.Cabin)
+                    {
+                        return false;
+                    }
+                    if (gasolinetanker.Signal != otherGasolineTanker.Signal)
+                    {
+                        return false;
+                    }
+                    if (gasolinetanker.BenzoBack != otherGasolineTanker.BenzoBack)
+                    {
+                        return false;
+                    }
+                }
+                return true;
+            }
+        }
     }
 }

GasolineTanker/GasolineTanker/IDrawningObject.cs

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

GasolineTanker/GasolineTanker/MapWithSetTankersGeneric.cs

@@ -1,7 +1,7 @@
 namespace GasolineTanker
 {
     internal class MapWithSetTankersGeneric<T, U>
-        where T : class, IDrawningObject
+        where T : class, IDrawningObject,IEquatable<T>
         where U : AbstractMap
     {
         private readonly int _pictureWidth;

GasolineTanker/GasolineTanker/SetTankersGeneric.cs

@@ -1,7 +1,7 @@
 namespace GasolineTanker
 {
     internal class SetTankersGeneric<T>
-        where T : class
+        where T : class, IEquatable<T>
     {
         private readonly List<T> _places;
         public int Count => _places.Count;
@@ -20,6 +20,10 @@
         public int Insert(T tanker, int position)
 
         {
+            if (_places.Contains(tanker))
+            {
+                return -1;
+            }
             if (Count == _maxCount)
             {
                 throw new StorageOverflowException(_maxCount);