minetest/src/irr_v3d.h

/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#pragma once
#include "irrlichttypes.h"
#include <vector3d.h>
#include <functional>

typedef core::vector3df v3f;
typedef core::vector3d<double> v3d;
typedef core::vector3d<s16> v3s16;
typedef core::vector3d<u16> v3u16;
typedef core::vector3d<s32> v3s32;

namespace std
{
template <> struct hash<v3s16>
{
	typedef v3s16 argument_type;
	typedef std::size_t result_type;
	result_type operator()(const argument_type &s) const noexcept
	{
		// clang-format off
		return static_cast<size_t>((static_cast<u64>(s.X) << 20) ^
		                           (static_cast<u64>(s.Y) << 10) ^
		                           (static_cast<u64>(s.Z)));
		// clang-format on
	}
};
}