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Math vector class.

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King_DuckZ 2014-02-09 23:07:57 +01:00
parent 93a7796c5a
commit 07225e3aea
2 changed files with 145 additions and 0 deletions
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#ifndef idid0528646832E04CF08E9785B66CFE0BD1
#define idid0528646832E04CF08E9785B66CFE0BD1
#include <cstdint>
#include <ciso646>
#include <type_traits>
namespace cloonel {
template <typename T, uint32_t S>
class Vector {
template <typename U, uint32_t R> friend class Vector;
public:
Vector ( void ) = default;
explicit Vector ( T parValue );
template <typename U> Vector ( const Vector<U, S>& parOther );
template <typename = std::enable_if<S == 2> > Vector ( T parX, T parY ) : m_mem {parX, parY} {}
template <typename = std::enable_if<S == 3> > Vector ( T parX, T parY, T parZ ) : m_mem {parX, parY, parZ} {}
template <typename = std::enable_if<S == 4> > Vector ( T parX, T parY, T parZ, T parW ) : m_mem {parX, parY, parZ, parW} {}
~Vector ( void ) noexcept = default;
enum {
Dimension = S
};
template <typename = std::enable_if< 4 >= S> > T& x ( void ) { return m_mem[0]; }
template <typename = std::enable_if< 4 >= S> > const T& x ( void ) const { return m_mem[0]; }
template <typename = std::enable_if<S >= 2 and 4 >= S> > T& y ( void ) { return m_mem[1]; }
template <typename = std::enable_if<S >= 2 and 4 >= S> > const T& y ( void ) const { return m_mem[1]; }
template <typename = std::enable_if<S >= 3 and 4 >= S> > T& z ( void ) { return m_mem[2]; }
template <typename = std::enable_if<S >= 3 and 4 >= S> > const T& z ( void ) const { return m_mem[2]; }
template <typename = std::enable_if<S >= 4 and 4 >= S> > T& w ( void ) { return m_mem[3]; }
template <typename = std::enable_if<S >= 4 and 4 >= S> > const T& w ( void ) const { return m_mem[3]; }
template <typename U> const Vector& operator+= ( const Vector<U, S>& parOther );
template <typename U> const Vector& operator-= ( const Vector<U, S>& parOther );
template <typename U> const Vector& operator*= ( const Vector<U, S>& parOther );
template <typename U> const Vector& operator/= ( const Vector<U, S>& parOther );
private:
T m_mem[S];
};
template <typename T, typename U, uint32_t S>
Vector<typename std::common_type<T, U>::type, S> operator+ ( const Vector<T, S>& parA, const Vector<U, S>& parB ) __attribute__((pure));
template <typename T, typename U, uint32_t S>
Vector<typename std::common_type<T, U>::type, S> operator- ( const Vector<T, S>& parA, const Vector<U, S>& parB ) __attribute__((pure));
template <typename T, typename U, uint32_t S>
Vector<typename std::common_type<T, U>::type, S> operator* ( const Vector<T, S>& parA, const Vector<U, S>& parB ) __attribute__((pure));
template <typename T, typename U, uint32_t S>
Vector<typename std::common_type<T, U>::type, S> operator/ ( const Vector<T, S>& parA, const Vector<U, S>& parB ) __attribute__((pure));
typedef Vector<float, 2> float2;
typedef Vector<uint16_t, 2> ushort2;
} //namespace cloonel
#include "vector.inl"
#endif

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namespace cloonel {
///-------------------------------------------------------------------------
///-------------------------------------------------------------------------
template <typename T, uint32_t S>
Vector<T, S>::Vector (T parValue) :
m_mem {parValue}
{
}
///-------------------------------------------------------------------------
///-------------------------------------------------------------------------
template <typename T, uint32_t S>
template <typename U>
Vector<T, S>::Vector (const Vector<U, S>& parOther) {
for (uint32_t z = 0; z < S; ++z) {
m_mem[z] = parOther.m_mem[z];
}
}
///-------------------------------------------------------------------------
///-------------------------------------------------------------------------
template <typename T, uint32_t S>
template <typename U>
const Vector<T, S>& Vector<T, S>::operator+= (const Vector<U, S>& parOther) {
for (uint32_t z = 0; z < S; ++z) {
m_mem[z] += parOther.m_mem[z];
}
return *this;
}
template <typename T, uint32_t S>
template <typename U>
const Vector<T, S>& Vector<T, S>::operator-= (const Vector<U, S>& parOther) {
for (uint32_t z = 0; z < S; ++z) {
m_mem[z] -= parOther.m_mem[z];
}
return *this;
}
template <typename T, uint32_t S>
template <typename U>
const Vector<T, S>& Vector<T, S>::operator*= (const Vector<U, S>& parOther) {
for (uint32_t z = 0; z < S; ++z) {
m_mem[z] *= parOther.m_mem[z];
}
return *this;
}
template <typename T, uint32_t S>
template <typename U>
const Vector<T, S>& Vector<T, S>::operator/= (const Vector<U, S>& parOther) {
for (uint32_t z = 0; z < S; ++z) {
m_mem[z] /= parOther.m_mem[z];
}
return *this;
}
///-------------------------------------------------------------------------
///-------------------------------------------------------------------------
template <typename T, typename U, uint32_t S>
inline
Vector<typename std::common_type<T, U>::type, S> operator+ (const Vector<T, S>& parA, const Vector<U, S>& parB) {
typedef typename std::common_type<T, U>::type RetType;
Vector<RetType, S> retVal(parA);
parA += parB;
return retVal;
}
template <typename T, typename U, uint32_t S>
inline
Vector<typename std::common_type<T, U>::type, S> operator- (const Vector<T, S>& parA, const Vector<U, S>& parB) {
typedef typename std::common_type<T, U>::type RetType;
Vector<RetType, S> retVal(parA);
parA -= parB;
return retVal;
}
template <typename T, typename U, uint32_t S>
inline
Vector<typename std::common_type<T, U>::type, S> operator* (const Vector<T, S>& parA, const Vector<U, S>& parB) {
typedef typename std::common_type<T, U>::type RetType;
Vector<RetType, S> retVal(parA);
parA *= parB;
return retVal;
}
template <typename T, typename U, uint32_t S>
inline
Vector<typename std::common_type<T, U>::type, S> operator/ (const Vector<T, S>& parA, const Vector<U, S>& parB) {
typedef typename std::common_type<T, U>::type RetType;
Vector<RetType, S> retVal(parA);
parA /= parB;
return retVal;
}
} //namespace cloonel