Magic_Game/kiwano/math/Vec2.hpp

// Copyright (c) 2016-2018 Kiwano - Nomango
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// THE SOFTWARE.

#pragma once
#include "scalar.hpp"

namespace kiwano
{
	namespace math
	{
		template <typename _Ty>
		struct Vec2T
		{
			using value_type = _Ty;

			value_type x;
			value_type y;

			Vec2T() : x(0.f), y(0.f) {}

			Vec2T(value_type x, value_type y) : x(x), y(y) {}

			Vec2T(const Vec2T& other) : x(other.x), y(other.y) {}

			inline value_type Length() const
			{
				return math::Sqrt(x * x + y * y);
			}

			inline bool IsOrigin() const
			{
				return (x == 0) && (y == 0);
			}

			inline void Set(value_type x, value_type y)
			{
				this->x = x;
				this->y = y;
			}

			inline const Vec2T operator + (const Vec2T & other) const
			{
				return Vec2T(x + other.x, y + other.y);
			}

			inline const Vec2T operator - (const Vec2T & other) const
			{
				return Vec2T(x - other.x, y - other.y);
			}

			inline const Vec2T operator * (value_type val) const
			{
				return Vec2T(x * val, y * val);
			}

			inline const Vec2T operator / (value_type val) const
			{
				return Vec2T(x / val, y / val);
			}

			inline const Vec2T operator - () const
			{
				return Vec2T(-x, -y);
			}

			inline Vec2T& operator += (const Vec2T& other)
			{
				x += other.x;
				y += other.y;
				return (*this);
			}

			inline Vec2T& operator -= (const Vec2T& other)
			{
				x -= other.x;
				y -= other.y;
				return (*this);
			}

			inline Vec2T& operator *= (value_type val)
			{
				x *= val;
				y *= val;
				return (*this);
			}

			inline Vec2T& operator /= (value_type val)
			{
				x /= val;
				y /= val;
				return (*this);
			}

			inline bool operator== (const Vec2T& other) const
			{
				return (x == other.x) && (y == other.y);
			}

			inline bool operator!= (const Vec2T& other) const
			{
				return (x != other.x) || (y != other.y);
			}
		};
	}
}

namespace kiwano
{
	using Vec2 = kiwano::math::Vec2T<float>;
}