Tweeker Commit (Have Fun Reviewing This)

include/J3ML/LinearAlgebra/Vector2.h

@@ -10,9 +10,11 @@ namespace J3ML::LinearAlgebra {
     /// A 2D (x, y) ordered pair.
     class Vector2 {
     public:
-
+        float x = 0;
+        float y = 0;
+    public:
         enum {Dimensions = 2};
-
+    public:
         /// Default Constructor - Initializes values to zero
         Vector2();
         /// Constructs a new Vector2 with the value (X, Y)
@@ -174,9 +176,14 @@ namespace J3ML::LinearAlgebra {
         Vector2& operator*=(float scalar);
         Vector2& operator/=(float scalar);
 
-    public:
-        float x = 0;
-        float y = 0;
+
+        /// Tests if the triangle a->b->c is oriented counter-clockwise.
+        /** Returns true if the triangle a->b->c is oriented counter-clockwise, when viewed in the XY-plane
+            where x spans to the right and y spans up.
+            Another way to think of this is that this function returns true, if the point C lies to the left
+            of the directed line AB. */
+        static bool OrientedCCW(const Vector2 &, const Vector2 &, const Vector2 &);
+
 
     };