Added Add/Subtract vector operators, and Negate and Clone methods

OSCADSharp/OSCADSharp.ConsoleTests/Program.cs

@@ -33,7 +33,13 @@ namespace OSCADSharp.ConsoleTests
 
             string script = text.ToString();
 
-            File.WriteAllLines("test.scad", new string[] { script.ToString() });            
+            File.WriteAllLines("test.scad", new string[] { script.ToString() });
+
+            var vec1 = new Vector3(5, 5, 5);
+            var vec2 = new Vector3(10, 10, 10);
+            Console.WriteLine(vec1 - vec2);
+
+            Console.ReadKey();
         }
     }
 }

OSCADSharp/OSCADSharp/Vector3.cs

@@ -13,9 +13,11 @@ namespace OSCADSharp
     /// </summary>
     public class Vector3
     {
+        #region Attributes
         public double X { get; set; }
         public double Y { get; set; }
         public double Z { get; set; }
+        #endregion
                 
         public Vector3(double x = 0, double y = 0, double z = 0)
         {
@@ -23,5 +25,41 @@ namespace OSCADSharp
             this.Y = y;
             this.Z = z;
         }
+        
+        /// <summary>
+        /// Negates the values of this vector, returning an inverse of it
+        /// </summary>
+        /// <returns>A negated vector</returns>
+        public Vector3 Negate()
+        {
+            return new Vector3(-this.X, -this.Y, -this.Z);
+        }
+
+        /// <summary>
+        /// Creates a copy of this vector that's a new instance
+        /// with the same values
+        /// </summary>
+        /// <returns>A clone of this vector</returns>
+        public Vector3 Clone()
+        {
+            return new Vector3(this.X, this.Y, this.Z);
+        }
+
+        #region Operators
+        public static Vector3 operator +(Vector3 left, Vector3 right)
+        {
+            return new Vector3(left.X + right.X, left.Y + right.Y, left.Z + right.Z);
+        }
+
+        public static Vector3 operator -(Vector3 left, Vector3 right)
+        {
+            return new Vector3(left.X - right.X, left.Y - right.Y, left.Z - right.Z);
+        }
+        #endregion
+
+        public override string ToString()
+        {
+            return String.Format("[X: {0}, Y: {1}, Z: {2}]", this.X.ToString(), this.Y.ToString(), this.Z.ToString());
+        }
     }
 }