--- /dev/null
+/*
+This file is part of the n3dmath2 library.
+
+Copyright (c) 2004, 2005 John Tsiombikas <nuclear@siggraph.org>
+
+The n3dmath2 library is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+The n3dmath2 library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with the n3dmath2 library; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#ifndef _N3DMATH2_VEC_HPP_
+#define _N3DMATH2_VEC_HPP_
+
+#include <iostream>
+#include "n3dmath2_types.hpp"
+
+class Vector2 {
+public:
+ scalar_t x, y;
+
+ Vector2(scalar_t x = 0.0, scalar_t y = 0.0);
+ Vector2(const Vector3 &vec);
+ Vector2(const Vector4 &vec);
+
+ inline scalar_t &operator [](int elem);
+
+ // unary operations
+ friend inline Vector2 operator -(const Vector2 &vec);
+
+ // binary vector (op) vector operations
+ friend inline scalar_t dot_product(const Vector2 &v1, const Vector2 &v2);
+
+ friend inline Vector2 operator +(const Vector2 &v1, const Vector2 &v2);
+ friend inline Vector2 operator -(const Vector2 &v1, const Vector2 &v2);
+ friend inline Vector2 operator *(const Vector2 &v1, const Vector2 &v2);
+ friend inline Vector2 operator /(const Vector2 &v1, const Vector2 &v2);
+ friend inline bool operator ==(const Vector2 &v1, const Vector2 &v2);
+
+ friend inline void operator +=(Vector2 &v1, const Vector2 &v2);
+ friend inline void operator -=(Vector2 &v1, const Vector2 &v2);
+ friend inline void operator *=(Vector2 &v1, const Vector2 &v2);
+ friend inline void operator /=(Vector2 &v1, const Vector2 &v2);
+
+ // binary vector (op) scalar and scalar (op) vector operations
+ friend inline Vector2 operator +(const Vector2 &vec, scalar_t scalar);
+ friend inline Vector2 operator +(scalar_t scalar, const Vector2 &vec);
+ friend inline Vector2 operator -(const Vector2 &vec, scalar_t scalar);
+ friend inline Vector2 operator -(scalar_t scalar, const Vector2 &vec);
+ friend inline Vector2 operator *(const Vector2 &vec, scalar_t scalar);
+ friend inline Vector2 operator *(scalar_t scalar, const Vector2 &vec);
+ friend inline Vector2 operator /(const Vector2 &vec, scalar_t scalar);
+ friend inline Vector2 operator /(scalar_t scalar, const Vector2 &vec);
+
+ friend inline void operator +=(Vector2 &vec, scalar_t scalar);
+ friend inline void operator -=(Vector2 &vec, scalar_t scalar);
+ friend inline void operator *=(Vector2 &vec, scalar_t scalar);
+ friend inline void operator /=(Vector2 &vec, scalar_t scalar);
+
+ inline scalar_t length() const;
+ inline scalar_t length_sq() const;
+ void normalize();
+ Vector2 normalized() const;
+
+ void transform(const Matrix3x3 &mat);
+ Vector2 transformed(const Matrix3x3 &mat) const;
+
+ void rotate(scalar_t angle);
+ Vector2 rotated(scalar_t angle) const;
+
+ Vector2 reflection(const Vector2 &normal) const;
+ Vector2 refraction(const Vector2 &normal, scalar_t src_ior, scalar_t dst_ior) const;
+
+ friend std::ostream &operator <<(std::ostream &out, const Vector2 &vec);
+};
+
+class Vector3 {
+public:
+ scalar_t x, y, z;
+
+ Vector3(scalar_t x = 0.0, scalar_t y = 0.0, scalar_t z = 0.0);
+ Vector3(const Vector2 &vec);
+ Vector3(const Vector4 &vec);
+ Vector3(const SphVector &sph);
+
+ Vector3 &operator =(const SphVector &sph);
+
+ inline scalar_t &operator [](int elem);
+
+ // unary operations
+ friend inline Vector3 operator -(const Vector3 &vec);
+
+ // binary vector (op) vector operations
+ friend inline scalar_t dot_product(const Vector3 &v1, const Vector3 &v2);
+ friend inline Vector3 cross_product(const Vector3 &v1, const Vector3 &v2);
+
+ friend inline Vector3 operator +(const Vector3 &v1, const Vector3 &v2);
+ friend inline Vector3 operator -(const Vector3 &v1, const Vector3 &v2);
+ friend inline Vector3 operator *(const Vector3 &v1, const Vector3 &v2);
+ friend inline Vector3 operator /(const Vector3 &v1, const Vector3 &v2);
+ friend inline bool operator ==(const Vector3 &v1, const Vector3 &v2);
+
+ friend inline void operator +=(Vector3 &v1, const Vector3 &v2);
+ friend inline void operator -=(Vector3 &v1, const Vector3 &v2);
+ friend inline void operator *=(Vector3 &v1, const Vector3 &v2);
+ friend inline void operator /=(Vector3 &v1, const Vector3 &v2);
+
+ // binary vector (op) scalar and scalar (op) vector operations
+ friend inline Vector3 operator +(const Vector3 &vec, scalar_t scalar);
+ friend inline Vector3 operator +(scalar_t scalar, const Vector3 &vec);
+ friend inline Vector3 operator -(const Vector3 &vec, scalar_t scalar);
+ friend inline Vector3 operator -(scalar_t scalar, const Vector3 &vec);
+ friend inline Vector3 operator *(const Vector3 &vec, scalar_t scalar);
+ friend inline Vector3 operator *(scalar_t scalar, const Vector3 &vec);
+ friend inline Vector3 operator /(const Vector3 &vec, scalar_t scalar);
+ friend inline Vector3 operator /(scalar_t scalar, const Vector3 &vec);
+
+ friend inline void operator +=(Vector3 &vec, scalar_t scalar);
+ friend inline void operator -=(Vector3 &vec, scalar_t scalar);
+ friend inline void operator *=(Vector3 &vec, scalar_t scalar);
+ friend inline void operator /=(Vector3 &vec, scalar_t scalar);
+
+ inline scalar_t length() const;
+ inline scalar_t length_sq() const;
+ void normalize();
+ Vector3 normalized() const;
+
+ void transform(const Matrix3x3 &mat);
+ Vector3 transformed(const Matrix3x3 &mat) const;
+ void transform(const Matrix4x4 &mat);
+ Vector3 transformed(const Matrix4x4 &mat) const;
+ void transform(const Quaternion &quat);
+ Vector3 transformed(const Quaternion &quat) const;
+
+ void rotate(const Vector3 &euler);
+ Vector3 rotated(const Vector3 &euler) const;
+
+ Vector3 reflection(const Vector3 &normal) const;
+ Vector3 refraction(const Vector3 &normal, scalar_t src_ior, scalar_t dst_ior) const;
+
+ friend std::ostream &operator <<(std::ostream &out, const Vector3 &vec);
+};
+
+class Vector4 {
+public:
+ scalar_t x, y, z, w;
+
+ Vector4(scalar_t x = 0.0, scalar_t y = 0.0, scalar_t z = 0.0, scalar_t w = 0.0);
+ Vector4(const Vector2 &vec);
+ Vector4(const Vector3 &vec);
+
+ inline scalar_t &operator [](int elem);
+
+ // unary operations
+ friend inline Vector4 operator -(const Vector4 &vec);
+
+ // binary vector (op) vector operations
+ friend inline scalar_t dot_product(const Vector4 &v1, const Vector4 &v2);
+ friend inline Vector4 cross_product(const Vector4 &v1, const Vector4 &v2, const Vector4 &v3);
+
+ friend inline Vector4 operator +(const Vector4 &v1, const Vector4 &v2);
+ friend inline Vector4 operator -(const Vector4 &v1, const Vector4 &v2);
+ friend inline Vector4 operator *(const Vector4 &v1, const Vector4 &v2);
+ friend inline Vector4 operator /(const Vector4 &v1, const Vector4 &v2);
+ friend inline bool operator ==(const Vector4 &v1, const Vector4 &v2);
+
+ friend inline void operator +=(Vector4 &v1, const Vector4 &v2);
+ friend inline void operator -=(Vector4 &v1, const Vector4 &v2);
+ friend inline void operator *=(Vector4 &v1, const Vector4 &v2);
+ friend inline void operator /=(Vector4 &v1, const Vector4 &v2);
+
+ // binary vector (op) scalar and scalar (op) vector operations
+ friend inline Vector4 operator +(const Vector4 &vec, scalar_t scalar);
+ friend inline Vector4 operator +(scalar_t scalar, const Vector4 &vec);
+ friend inline Vector4 operator -(const Vector4 &vec, scalar_t scalar);
+ friend inline Vector4 operator -(scalar_t scalar, const Vector4 &vec);
+ friend inline Vector4 operator *(const Vector4 &vec, scalar_t scalar);
+ friend inline Vector4 operator *(scalar_t scalar, const Vector4 &vec);
+ friend inline Vector4 operator /(const Vector4 &vec, scalar_t scalar);
+ friend inline Vector4 operator /(scalar_t scalar, const Vector4 &vec);
+
+ friend inline void operator +=(Vector4 &vec, scalar_t scalar);
+ friend inline void operator -=(Vector4 &vec, scalar_t scalar);
+ friend inline void operator *=(Vector4 &vec, scalar_t scalar);
+ friend inline void operator /=(Vector4 &vec, scalar_t scalar);
+
+ inline scalar_t length() const;
+ inline scalar_t length_sq() const;
+ void normalize();
+ Vector4 normalized() const;
+
+ void transform(const Matrix4x4 &mat);
+ Vector4 transformed(const Matrix4x4 &mat) const;
+
+ Vector4 reflection(const Vector4 &normal) const;
+ Vector4 refraction(const Vector4 &normal, scalar_t src_ior, scalar_t dst_ior) const;
+
+ friend std::ostream &operator <<(std::ostream &out, const Vector4 &vec);
+};
+
+#include "n3dmath2_vec.inl"
+
+#endif // _N3DMATH2_VEC_HPP_
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