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#pragma once
#include <math.h>
class Vector3f;
// tolua_begin
class Vector3d
{
public:
// convert from float
Vector3d(const Vector3f & v);
Vector3d(const Vector3f * v);
Vector3d() : x(0), y(0), z(0) {}
Vector3d(double a_x, double a_y, double a_z) : x(a_x), y(a_y), z(a_z) {}
inline void Set(double a_x, double a_y, double a_z) { x = a_x, y = a_y, z = a_z; }
inline void Normalize() { double l = 1.0f / Length(); x *= l; y *= l; z *= l; }
inline Vector3d NormalizeCopy() { double l = 1.0f / Length(); return Vector3d( x * l, y * l, z * l ); }
inline void NormalizeCopy(Vector3d & a_V) { double l = 1.0f / Length(); a_V.Set(x*l, y*l, z*l ); }
inline double Length() const { return (double)sqrt( x * x + y * y + z * z ); }
inline double SqrLength() const { return x * x + y * y + z * z; }
inline double Dot( const Vector3d & a_V ) const { return x * a_V.x + y * a_V.y + z * a_V.z; }
inline Vector3d Cross( const Vector3d & v ) const { return Vector3d( y * v.z - z * v.y, z * v.x - x * v.z, x * v.y - y * v.x ); }
/** Returns the coefficient for the (a_OtherEnd - this) line to reach the specified Z coord
The result satisfies the following equation:
(*this + Result * (a_OtherEnd - *this)).z = a_Z
If the line is too close to being parallel, this function returns NO_INTERSECTION
*/
double LineCoeffToXYPlane(const Vector3d & a_OtherEnd, double a_Z) const;
/** Returns the coefficient for the (a_OtherEnd - this) line to reach the specified Y coord
The result satisfies the following equation:
(*this + Result * (a_OtherEnd - *this)).y = a_Y
If the line is too close to being parallel, this function returns NO_INTERSECTION
*/
double LineCoeffToXZPlane(const Vector3d & a_OtherEnd, double a_Y) const;
/** Returns the coefficient for the (a_OtherEnd - this) line to reach the specified X coord
The result satisfies the following equation:
(*this + Result * (a_OtherEnd - *this)).x = a_X
If the line is too close to being parallel, this function returns NO_INTERSECTION
*/
double LineCoeffToYZPlane(const Vector3d & a_OtherEnd, double a_X) const;
inline bool Equals(const Vector3d & v) const { return ((x == v.x) && (y == v.y) && (z == v.z)); }
// tolua_end
void operator += ( const Vector3d& a_V ) { x += a_V.x; y += a_V.y; z += a_V.z; }
void operator += ( Vector3d* a_V ) { x += a_V->x; y += a_V->y; z += a_V->z; }
void operator -= ( const Vector3d& a_V ) { x -= a_V.x; y -= a_V.y; z -= a_V.z; }
void operator -= ( Vector3d* a_V ) { x -= a_V->x; y -= a_V->y; z -= a_V->z; }
void operator *= ( double a_f ) { x *= a_f; y *= a_f; z *= a_f; }
// tolua_begin
Vector3d operator + (const Vector3d & v2) const { return Vector3d(x + v2.x, y + v2.y, z + v2.z ); }
Vector3d operator + (const Vector3d * v2) const { return Vector3d(x + v2->x, y + v2->y, z + v2->z ); }
Vector3d operator - (const Vector3d & v2) const { return Vector3d(x - v2.x, y - v2.y, z - v2.z ); }
Vector3d operator - (const Vector3d * v2) const { return Vector3d(x - v2->x, y - v2->y, z - v2->z ); }
Vector3d operator * (const double f) const { return Vector3d(x * f, y * f, z * f ); }
Vector3d operator * (const Vector3d & v2) const { return Vector3d(x * v2.x, y * v2.y, z * v2.z ); }
Vector3d operator / (const double f) const { return Vector3d(x / f, y / f, z / f ); }
double x, y, z;
static const double EPS; ///< The max difference between two coords for which the coords are assumed equal
static const double NO_INTERSECTION; ///< Return value of LineCoeffToPlane() if the line is parallel to the plane
} ;
// tolua_end
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