| 1 | #ifndef VECTOR2_H |
| 2 | #define VECTOR2_H |
| 3 | |
| 4 | #include <string> |
| 5 | |
| 6 | using std::string; |
| 7 | |
| 8 | /// ***** Header Class ***** |
| 9 | class Vector2 |
| 10 | { |
| 11 | public: |
| 12 | float x; |
| 13 | float y; |
| 14 | |
| 15 | Vector2(); |
| 16 | Vector2(float, float); |
| 17 | Vector2(const Vector2&); |
| 18 | |
| 19 | void zero(); |
| 20 | void unit(); |
| 21 | |
| 22 | float angle() const; |
| 23 | float length() const; |
| 24 | |
| 25 | Vector2 add(const Vector2&) const; |
| 26 | Vector2 subtract(const Vector2&) const; |
| 27 | Vector2 divide(float) const; |
| 28 | Vector2 multiply(float) const; |
| 29 | |
| 30 | string toString() const; |
| 31 | void print() const; |
| 32 | }; |
| 33 | |
| 34 | /// ***** Header Methods ***** |
| 35 | // definitions of the operators are external |
| 36 | // because (float, Vector2) would fail inside class |
| 37 | Vector2 operator+(const Vector2&, const Vector2&); |
| 38 | Vector2 operator-(const Vector2&, const Vector2&); |
| 39 | Vector2 operator*(float, const Vector2&); |
| 40 | Vector2 operator*(const Vector2&, float); |
| 41 | Vector2 operator/(const Vector2&, float); |
| 42 | |
| 43 | void operator+=(Vector2&, const Vector2&); |
| 44 | void operator-=(Vector2&, const Vector2&); |
| 45 | void operator*=(Vector2&, float); |
| 46 | void operator/=(Vector2&, float); |
| 47 | |
| 48 | #endif // VECTOR2_H |