class Vector2
{
public:
- float x;
- float y;
+ float m_fX;
+ float m_fY;
Vector2();
Vector2(float, float);
- Vector2(const Vector2&);
- ~Vector2();
void zero();
void unit();
float angle() const;
float length() const;
+ float sqrLength() const;
+
+ float dot(const Vector2&) const;
Vector2 add(const Vector2&) const;
Vector2 subtract(const Vector2&) const;