1 files changed, 40 insertions, 15 deletions

diff --git a/src/Vector3.h b/src/Vector3.h
index 53fdcf6df..5faac1457 100644
--- a/src/Vector3.h
+++ b/src/Vector3.h
@@ -42,7 +42,6 @@ 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;
@@ -107,18 +106,18 @@ public:
 
 	inline bool Equals(const Vector3<T> & a_Rhs) const
 	{
-		return x == a_Rhs.x && y == a_Rhs.y && z == a_Rhs.z;
-	}
-
-	inline bool operator == (const Vector3<T> & a_Rhs) const
-	{
-		return Equals(a_Rhs);
+		// 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 operator < (const Vector3<T> & a_Rhs)
+	
+	inline bool EqualsEps(const Vector3<T> & a_Rhs, T a_Eps) const
 	{
-		// return (x < a_Rhs.x) && (y < a_Rhs.y) && (z < a_Rhs.z); ?
-		return (x < a_Rhs.x) || (x == a_Rhs.x && y < a_Rhs.y) || (x == a_Rhs.x && y == a_Rhs.y && z < a_Rhs.z);
+		return (Abs(x - a_Rhs.x) < a_Eps) && (Abs(y - a_Rhs.y) < a_Eps) && (Abs(z - a_Rhs.z) < a_Eps);
 	}
 
 	inline void Move(T a_X, T a_Y, T a_Z)
@@ -137,6 +136,16 @@ public:
 
 	// tolua_end
 
+	inline bool operator != (const Vector3<T> & a_Rhs) const
+	{
+		return !Equals(a_Rhs);
+	}
+
+	inline bool operator == (const Vector3<T> & a_Rhs) const
+	{
+		return Equals(a_Rhs);
+	}
+
 	inline void operator += (const Vector3<T> & a_Rhs)
 	{
 		x += a_Rhs.x;
@@ -165,8 +174,16 @@ public:
 		z *= a_v;
 	}
 
-	// tolua_begin
+	inline Vector3<T> & operator = (const Vector3<T> & a_Rhs)
+	{
+		x = a_Rhs.x;
+		y = a_Rhs.y;
+		z = a_Rhs.z;
+		return *this;
+	}
 
+	// tolua_begin
+	
 	inline Vector3<T> operator + (const Vector3<T>& a_Rhs) const
 	{
 		return Vector3<T>(
@@ -219,7 +236,7 @@ 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;
 		}
@@ -234,7 +251,7 @@ 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;
 		}
@@ -249,7 +266,7 @@ 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;
 		}
@@ -262,7 +279,15 @@ 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