diff options
| -rw-r--r-- | src/Vector3.h | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/src/Vector3.h b/src/Vector3.h index 32c26026a..30b8e748a 100644 --- a/src/Vector3.h +++ b/src/Vector3.h @@ -40,7 +40,6 @@ public: Vector3(const Vector3<_T> * a_Rhs) : x(a_Rhs->x), y(a_Rhs->y), z(a_Rhs->z) {} // tolua_begin - inline void Set(T a_x, T a_y, T a_z) { x = a_x; @@ -105,7 +104,18 @@ public: inline bool Equals(const Vector3<T> & a_Rhs) const { - return x == a_Rhs.x && y == a_Rhs.y && z == a_Rhs.z; + // Perform a bitwise comparison of the contents - we want to know whether this object is exactly equal + // To perform EPS-based comparison, use the EqualsEps() function + return ( + (memcmp(&x, &a_Rhs.x, sizeof(x)) == 0) && + (memcmp(&y, &a_Rhs.y, sizeof(y)) == 0) && + (memcmp(&z, &a_Rhs.z, sizeof(z)) == 0) + ); + } + + inline bool EqualsEps(const Vector3<T> & a_Rhs, T a_Eps) const + { + return (Abs(x - a_Rhs.x) < a_Eps) && (Abs(y - a_Rhs.y) < a_Eps) && (Abs(z - a_Rhs.z) < a_Eps); } inline bool operator == (const Vector3<T> & a_Rhs) const @@ -233,7 +243,7 @@ public: */ inline double LineCoeffToXYPlane(const Vector3<T> & a_OtherEnd, T a_Z) const { - if (abs(z - a_OtherEnd.z) < EPS) + if (Abs(z - a_OtherEnd.z) < EPS) { return NO_INTERSECTION; } @@ -248,7 +258,7 @@ public: */ inline double LineCoeffToXZPlane(const Vector3<T> & a_OtherEnd, T a_Y) const { - if (abs(y - a_OtherEnd.y) < EPS) + if (Abs(y - a_OtherEnd.y) < EPS) { return NO_INTERSECTION; } @@ -263,7 +273,7 @@ public: */ inline double LineCoeffToYZPlane(const Vector3<T> & a_OtherEnd, T a_X) const { - if (abs(x - a_OtherEnd.x) < EPS) + if (Abs(x - a_OtherEnd.x) < EPS) { return NO_INTERSECTION; } @@ -276,7 +286,15 @@ public: /** Return value of LineCoeffToPlane() if the line is parallel to the plane. */ static const double NO_INTERSECTION; + +protected: + /** Returns the absolute value of the given argument. + Templatized because the standard library differentiates between abs() and fabs(). */ + static T Abs(T a_Value) + { + return (a_Value < 0) ? -a_Value : a_Value; + } }; // tolua_end |