Making sure it uses Microsoft Code Convention

Animals/Elephant.cs

@@ -6,7 +6,7 @@ namespace OOP.Animals
     {
         public Elephant()
         {
-            this.Name = this.GetType().Name;
+            Name = GetType().Name;
         }
         
         public override void MakeSound()

Animals/Lion.cs

@@ -4,7 +4,7 @@ namespace OOP.Animals
     {
         public Lion()
         {
-            this.Name = this.GetType().Name;
+            Name = GetType().Name;
         }
 
         public override void MakeSound()

Animals/Parrot.cs

@@ -4,7 +4,7 @@ namespace OOP.Animals
     {
         public Parrot()
         {
-            this.Name = this.GetType().Name;
+            Name = GetType().Name;
         }
         
         public override void MakeSound()

Figures/Circle.cs

@@ -4,19 +4,19 @@ namespace OOP.Figures
     {
         public Circle(double radius)
         {
-            this.radius = radius;
+            Radius = radius;
         }
 
-        public double radius { get; set; }
+        public double Radius { get; set; }
 
         public override double GetArea()
         {
-            return Math.PI * Math.Pow(radius, 2);
+            return Math.PI * Math.Pow(Radius, 2);
         }
 
         public override double GetPerimeter()
         {
-            return 2 * Math.PI * radius;
+            return 2 * Math.PI * Radius;
         }
     }
 }

Figures/Rectangle.cs

@@ -4,21 +4,21 @@ namespace OOP.Figures
     {
         public Rectangle(double width, double height)
         {
-            this.height = height;
-            this.width = width;
+            Height = height;
+            Width = width;
         }
 
-        public double height { get; set; }
-        public double width { get; set; }
+        public double Height { get; set; }
+        public double Width { get; set; }
 
         public override double GetArea()
         {
-            return height * width;
+            return Height * Width;
         }
 
         public override double GetPerimeter()
         {
-            return (height * 2) + (width * 2);
+            return (Height * 2) + (Width * 2);
         }
     }
 }

Payment/PayPalPayment.cs

@@ -2,7 +2,7 @@ namespace OOP.Payment
 {
     public class PayPalPayment : GenericPayment
     {
-        public string email { get; set; }
+        public string Email { get; set; }
 
         public override void ProcessPayment()
         {

Payment/Payment.cs

@@ -2,7 +2,7 @@ namespace OOP.Payment
 {
     public class GenericPayment
     {
-        public int amount { get; set; }
+        public int Amount { get; set; }
         public string Currency { get; set; }
 
         public virtual void ProcessPayment()

RPG/Mage.cs

@@ -2,12 +2,12 @@ namespace OOP.RPG
 {
     public class Mage : Character
     {
-        public Mage(int Mana)
+        public Mage(int mana)
         {
-            this.Mana = Mana;
+            Mana = mana;
         }
 
-        public int Mana = 10;
+        public int Mana { get; set; } = 10;
 
         public override int Attack()
         {

RPG/Simulation.cs

@@ -4,36 +4,36 @@ namespace OOP.RPG
     {
         public Simulation(Character opponent1, Character opponent2)
         {
-            this.opponent1 = opponent1;
-            this.opponent2 = opponent2;
+            Opponent1 = opponent1;
+            Opponent2 = opponent2;
         }
 
-        public Character opponent1 { get; set; }
-        public Character opponent2 { get; set; }
+        public Character Opponent1 { get; set; }
+        public Character Opponent2 { get; set; }
 
         public void StartSimulation()
         {
-            while (!(opponent1.Health <= 0) && !(opponent2.Health <= 0))
+            while (!(Opponent1.Health <= 0) && !(Opponent2.Health <= 0))
             {
                 // Attack opponent2
 
-                var attack1 = opponent1.Attack();
-                opponent2.Health -= attack1;
+                var attack1 = Opponent1.Attack();
+                Opponent2.Health -= attack1;
                 Console.WriteLine($"Opponent1 attacks Opponent2");
-                Console.WriteLine($"Opponent1 attacks with {attack1} and Opponent2 has {opponent2.Health} left");
+                Console.WriteLine($"Opponent1 attacks with {attack1} and Opponent2 has {Opponent2.Health} left");
 
-                var attack2 = opponent2.Attack();
-                opponent1.Health -= attack2;
+                var attack2 = Opponent2.Attack();
+                Opponent1.Health -= attack2;
                 Console.WriteLine($"Opponent2 attacks Opponent2");
-                Console.WriteLine($"Opponent2 attacks with {attack2} and Opponent1 has {opponent1.Health} left");
+                Console.WriteLine($"Opponent2 attacks with {attack2} and Opponent1 has {Opponent1.Health} left");
             }
 
-            if (opponent1.Health <= 0)
+            if (Opponent1.Health <= 0)
             {
                 Console.WriteLine("Opponent2 wins");
             }
 
-            if (opponent2.Health <= 0)
+            if (Opponent2.Health <= 0)
             {
                 Console.WriteLine("Opponent1 wins");
             }

RPG/Warrior.cs

@@ -4,16 +4,16 @@ namespace OOP.RPG
     {
         public Warrior(int strength)
         {
-            this.strength = strength;
+            Strength = strength;
         }
         
-        public int strength = 10;
+        public int Strength { get; set; } = 10;
 
-        public int multiplier = 2;
+        public int Multiplier { get; set; } = 2;
         
         public override int Attack()
         {
-            return base.Attack() * multiplier;
+            return base.Attack() * Multiplier;
         }
     } 
 }