FasTC/Base/include/Vector2.h

81 lines
2.4 KiB
C++

/*******************************************************************************
* Copyright (c) 2012 Pavel Krajcevski
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*
******************************************************************************/
#ifndef BASE_INCLUDE_VECTOR2_H_
#define BASE_INCLUDE_VECTOR2_H_
#include "VectorBase.h"
#ifdef _VEX_ENABLE_SWIZZLE_
# define _VEX_VEC2_SWIZZLE_DEF(X, Y) \
Vector2<T> X##Y() const { return Vector2<T>( X(), Y() ); }
#endif // _VEX_ENABLE_SWIZZLE_
namespace FasTC {
template<typename T>
class Vector2 : public VectorBase<T, 2> {
public:
// Ideally, we would be able to do this with initialization
// lists, but I'm not really sure how to do that without gross
// code duplication.
Vector2() { }
Vector2(T x, T y) {
X() = x;
Y() = y;
}
// Overloaded functions
template<typename _T>
Vector2(const Vector2<_T> &v) : VectorBase<T, 2>(v) { }
template<typename _T>
Vector2<T> &operator=(const Vector2<_T> &v) {
VectorBase<T, 2>::operator=(v);
return *this;
}
// Accessors
T &X() { return (*this)[0]; }
const T &X() const { return (*this)[0]; }
T &Y() { return (*this)[1]; }
const T &Y() const { return (*this)[1]; }
// Swizzle
#ifdef _VEX_ENABLE_SWIZZLE_
_VEX_VEC2_SWIZZLE_DEF(X, X)
_VEX_VEC2_SWIZZLE_DEF(X, Y)
_VEX_VEC2_SWIZZLE_DEF(Y, X)
_VEX_VEC2_SWIZZLE_DEF(Y, Y)
#endif //_VEX_ENABLE_SWIZZLE_
};
REGISTER_ONE_TEMPLATE_VECTOR_TYPE(Vector2);
typedef Vector2<float> Vec2f;
typedef Vector2<double> Vec2d;
typedef Vector2<int> Vec2i;
};
#endif // BASE_INCLUDE_VECTOR2_H_