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#ifndef _VECTOR_H
#define _VECTOR_H
#include <math.h>
class Vector {
public:
Vector()
{
}
Vector(const float x, const float y, const float z)
{
this->x = x;
this->y = y;
this->z = z;
}
~Vector()
{
}
inline Vector operator+(const Vector v) const
{
return Vector(this->x + v.x, this->y + v.y, this->z + v.z);
}
inline Vector &operator+=(const Vector v)
{
this->x += v.x;
this->y += v.y;
this->z += v.z;
return *this;
}
inline Vector operator-(const Vector v) const
{
return Vector(this->x - v.x, this->y - v.y, this->z - v.z);
}
inline Vector &operator-=(const Vector v)
{
this->x -= v.x;
this->y -= v.y;
this->z -= v.z;
return *this;
}
inline Vector operator*(const float s) const
{
return Vector(this->x * s, this->y * s, this->z * s);
}
inline Vector &operator*=(const float s)
{
this->x *= s;
this->y *= s;
this->z *= s;
return *this;
}
inline float operator*(const Vector v) const
{
return (this->x * v.x + this->y * v.y + this->z * v.z) /
(float)sqrt((this->x * this->x + this->y * this->y + this->z * this->z) *
(v.x * v.x + v.y * v.y + v.z * v.z));
}
inline Vector operator/(const float s) const
{
return *this * (1.0f / s);
}
inline Vector &operator/=(const float s)
{
*this *= (1.0f / s);
return *this;
}
inline Vector cross_product(const Vector v) const
{
return Vector(this->y * v.z - this->z * v.y,
this->z * v.x - this->x * v.z,
this->x * v.y - this->y * v.x);
}
inline float magnitude() const
{
return sqrt(this->x * this->x +
this->y * this->y +
this->z * this->z);
}
inline Vector &normalize()
{
*this *= (1.0f / this->magnitude());
return *this;
}
float x, y, z;
};
#endif /* defined(_VECTOR_H) */
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