diff options
Diffstat (limited to 'engines/titanic/star_control/fpoint.h')
| -rw-r--r-- | engines/titanic/star_control/fpoint.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/engines/titanic/star_control/fpoint.h b/engines/titanic/star_control/fpoint.h index f2cef18ea5..33181d937b 100644 --- a/engines/titanic/star_control/fpoint.h +++ b/engines/titanic/star_control/fpoint.h @@ -34,6 +34,25 @@ public: public: FPoint() : _x(0), _y(0) {} FPoint(double x, double y) : _x(x), _y(y) {} + + bool operator==(const FPoint &p) const { return _x == p._x && _y == p._y; } + bool operator!=(const FPoint &p) const { return _x != p._x || _y != p._y; } + + void operator+=(const FPoint &delta) { + _x += delta._x; + _y += delta._y; + } + + void operator-=(const FPoint &delta) { + _x -= delta._x; + _y -= delta._y; + } + + /** + * Normalises the X and Y coordinates as fractions relative to the + * value of the hypotenuse formed by a triangle from the origin (0,0) + */ + void normalize(); }; } // End of namespace Titanic |