clooneljump/src/vector.hpp

/*
	Copyright 2014 Michele "King_DuckZ" Santullo

	This file is part of CloonelJump.

	CloonelJump 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 3 of the License, or
	(at your option) any later version.

	CloonelJump 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 CloonelJump.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef idid0528646832E04CF08E9785B66CFE0BD1
#define idid0528646832E04CF08E9785B66CFE0BD1

#include <cstdint>
#include <ciso646>
#include <type_traits>

#if !defined(NDEBUG)
#include <iostream>
#endif

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> explicit 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 );
		template <typename U> const Vector& operator+= ( U parOther );
		template <typename U> const Vector& operator-= ( U parOther );
		template <typename U> const Vector& operator*= ( U parOther );
		template <typename U> const Vector& operator/= ( U parOther );

		T& operator[] ( uint32_t parIndex ) { return m_mem[parIndex]; }
		const T& operator[] ( uint32_t parIndex ) const { return m_mem[parIndex]; }

	private:
		T m_mem[S];
	};

	template <typename T, typename U, uint32_t S>
	Vector<typename std::common_type<T, U>::type, S> operator+ ( 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- ( 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* ( 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/ ( Vector<T, S> parA, const Vector<U, S>& parB ) __attribute__((pure));
	template <typename T, typename U, uint32_t S, typename=typename std::enable_if<std::is_fundamental<U>::value>::type>
	Vector<typename std::common_type<T, U>::type, S> operator+ ( U parA, const Vector<U, S>& parB ) __attribute__((pure));
	template <typename T, typename U, uint32_t S, typename=typename std::enable_if<std::is_fundamental<U>::value>::type>
	Vector<typename std::common_type<T, U>::type, S> operator- ( U parA, const Vector<U, S>& parB ) __attribute__((pure));
	template <typename T, typename U, uint32_t S, typename=typename std::enable_if<std::is_fundamental<U>::value>::type>
	Vector<typename std::common_type<T, U>::type, S> operator* ( U parA, const Vector<U, S>& parB ) __attribute__((pure));
	template <typename T, typename U, uint32_t S, typename=typename std::enable_if<std::is_fundamental<U>::value>::type>
	Vector<typename std::common_type<T, U>::type, S> operator/ ( U parA, const Vector<U, S>& parB ) __attribute__((pure));
	template <typename T, typename U, uint32_t S, typename=typename std::enable_if<std::is_fundamental<U>::value>::type>
	Vector<typename std::common_type<T, U>::type, S> operator+ ( const Vector<T, S>& parA, U parB ) __attribute__((pure));
	template <typename T, typename U, uint32_t S, typename=typename std::enable_if<std::is_fundamental<U>::value>::type>
	Vector<typename std::common_type<T, U>::type, S> operator- ( const Vector<T, S>& parA, U parB ) __attribute__((pure));
	template <typename T, typename U, uint32_t S, typename=typename std::enable_if<std::is_fundamental<U>::value>::type>
	Vector<typename std::common_type<T, U>::type, S> operator* ( const Vector<T, S>& parA, U parB ) __attribute__((pure));
	template <typename T, typename U, uint32_t S, typename=typename std::enable_if<std::is_fundamental<U>::value>::type>
	Vector<typename std::common_type<T, U>::type, S> operator/ ( const Vector<T, S>& parA, U parB ) __attribute__((pure));

	template <typename T, typename U, uint32_t S>
	bool operator< ( const Vector<T, S>& parA, const Vector<U, S>& parB ) __attribute__((pure));
	template <typename T, typename U, uint32_t S>
	bool operator> ( const Vector<T, S>& parA, const Vector<U, S>& parB ) __attribute__((pure));
	template <typename T, typename U, uint32_t S>
	bool operator<= ( const Vector<T, S>& parA, const Vector<U, S>& parB ) __attribute__((pure));
	template <typename T, typename U, uint32_t S>
	bool operator>= ( const Vector<T, S>& parA, const Vector<U, S>& parB ) __attribute__((pure));
	template <typename T, typename U, uint32_t S>
	bool operator== ( const Vector<T, S>& parA, const Vector<U, S>& parB ) __attribute__((pure));
	template <typename T, typename U, uint32_t S>
	bool operator!= ( const Vector<T, S>& parA, const Vector<U, S>& parB ) __attribute__((pure));

	template <typename T, uint32_t S>
	Vector<T, S> operator- ( Vector<T, S> parOperand ) __attribute__((pure));

	typedef Vector<float, 2> float2;
	typedef Vector<uint16_t, 2> ushort2;
	typedef Vector<int32_t, 2> int2;

#if !defined(NDEBUG)
	template <typename T, uint32_t S>
	std::ostream& operator<< ( std::ostream& parStream, const Vector<T, S>& parVector ) {
		parStream << "<";
		for (uint32_t z = 0; z < S - 1; ++z) {
			parStream << parVector[z] << ",";
		}
		parStream << parVector[S - 1] << ">";
		return parStream;
	}
#endif

} //namespace cloonel
#include "vector.inl"
#endif