Week7 [09/11] - [11/11]

Added Backface Culling Methods to the Model Class
Added Depth, Normal and Culled Flag Variables to the Polygon3D Class
Added Vector3D Class
Added - operator to the Vertex Class
Cleaned up Code, Adding Void to Params etc

Vector3D.cpp

@@ -0,0 +1,78 @@
+#include "Vector3D.h"
+
+Vector3D::Vector3D()
+{
+	SetX(1);
+	SetY(1);
+	SetZ(1);
+}
+
+Vector3D::Vector3D(float x, float y, float z)
+{
+	SetX(x);
+	SetY(y);
+	SetZ(z);
+}
+
+Vector3D::Vector3D(const Vector3D& other)
+{
+	Copy(other);
+}
+
+Vector3D::~Vector3D()
+{
+}
+
+// Accessors
+float Vector3D::GetX() const
+{
+	return _x;
+}
+
+void Vector3D::SetX(const float x)
+{
+	_x = x;
+}
+
+float Vector3D::GetY() const
+{
+	return _y;
+}
+
+void Vector3D::SetY(const float y)
+{
+	_y = y;
+}
+
+float Vector3D::GetZ() const 
+{
+	return _z;
+}
+
+void Vector3D::SetZ(const float z)
+{
+	_z = z;
+}
+
+float Vector3D::DotProduct(const Vector3D v1, const Vector3D v2)
+{
+	return ((v1.GetX() * v2.GetX()) + (v1.GetY() * v2.GetY()) + (v1.GetZ() * v2.GetZ()));
+
+}
+
+Vector3D Vector3D::CrossProduct(const Vector3D v1, const Vector3D v2)
+{
+	return Vector3D((v1.GetY() * v2.GetZ()) - (v1.GetZ() * v2.GetY()), (v1.GetZ() * v2.GetX()) - (v1.GetX() * v2.GetZ()), (v1.GetX() * v2.GetY()) - (v1.GetY() * v2.GetX()));
+}
+
+const Vector3D Vector3D::operator+ (const Vector3D& rhs) const
+{
+	return Vector3D(_x + rhs.GetX(), _y + rhs.GetY(), _z + rhs.GetZ());
+}
+
+void Vector3D::Copy(const Vector3D& other)
+{
+	_x = other.GetX();
+	_y = other.GetY();
+	_z = other.GetZ();
+}