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-rw-r--r--src/Vector3.h28
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