Add methods to the Vector3 type to calculate the dot and cross product.

source/Base/Vector3.cpp

@@ -527,6 +527,24 @@ void Vector3::Normalize()
     }
 }
 
+// ------------------------------------------------------------------------------------------------
+Vector3::Value Vector3::DotProduct(const Vector3 & vec) const
+{
+    return ((x * vec.x) + (y * vec.y) + (z * vec.z));
+}
+
+// ------------------------------------------------------------------------------------------------
+Vector3::Value Vector3::AbsDotProduct(const Vector3 & vec) const
+{
+    return (std::abs(x * vec.x) + std::abs(y * vec.y) + std::abs(z * vec.z));
+}
+
+// ------------------------------------------------------------------------------------------------
+Vector3 Vector3::CrossProduct(const Vector3 & vec) const
+{
+    return Vector3((y * vec.z) - (z * vec.y), (z * vec.x) - (x * vec.z), (x * vec.y) - (y * vec.x));
+}
+
 // ------------------------------------------------------------------------------------------------
 Vector3::Value Vector3::GetDistanceTo(const Vector3 & vec) const
 {
@@ -655,6 +673,9 @@ void Register_Vector3(HSQUIRRELVM vm)
         .Func(_SC("SetStr"), &Vector3::SetStr)
         .Func(_SC("Clear"), &Vector3::Clear)
         .Func(_SC("Normalize"), &Vector3::Normalize)
+        .Func(_SC("Dot"), &Vector3::DotProduct)
+        .Func(_SC("AbsDot"), &Vector3::AbsDotProduct)
+        .Func(_SC("Cross"), &Vector3::CrossProduct)
         .Func(_SC("DistanceTo"), &Vector3::GetDistanceTo)
         .Func(_SC("SqDistanceTo"), &Vector3::GetSquaredDistanceTo)
         // Member Overloads

source/Base/Vector3.hpp

@@ -374,6 +374,21 @@ struct Vector3
     */
     void Normalize();
 
+    /* --------------------------------------------------------------------------------------------
+     * Calculate dot product.
+    */
+    Value DotProduct(const Vector3 & vec) const;
+
+    /* --------------------------------------------------------------------------------------------
+     * Calculate absolute dot product.
+    */
+    Value AbsDotProduct(const Vector3 & vec) const;
+
+    /* --------------------------------------------------------------------------------------------
+     * Calculate cross product.
+    */
+    Vector3 CrossProduct(const Vector3 & vec) const;
+
     /* --------------------------------------------------------------------------------------------
      * Return the distance between this vector and another vector.
     */