vector2.hpp

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// MIT License
// 
// Copyright (c) 2022 UEC Takeshi Ito Laboratory
// 
// 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
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
 
 
#ifndef DIGITALCURLING3_VECTOR2_HPP
#define DIGITALCURLING3_VECTOR2_HPP
 
#include <cmath>
#include "json/common.hpp"
 
namespace digitalcurling3 {
 
 
 
struct Vector2 {
    float x;  
    float y;  
 
    constexpr Vector2() : x(0.f), y(0.f) {}
 
    constexpr Vector2(float x, float y) : x(x), y(y) {}
 
    constexpr Vector2 & operator += (Vector2 v)
    {
        x += v.x;
        y += v.y;
        return *this;
    }
 
    constexpr Vector2 & operator -= (Vector2 v)
    {
        x -= v.x;
        y -= v.y;
        return *this;
    }
 
    constexpr Vector2 & operator *= (float f)
    {
        x *= f;
        y *= f;
        return *this;
    }
 
    constexpr Vector2 & operator /= (float f)
    {
        x /= f;
        y /= f;
        return *this;
    }
 
    float Length() const
    {
        return std::hypot(x, y);
    }
};
 
constexpr Vector2 operator - (Vector2 v)
{
    return { -v.x, -v.y };
}
 
constexpr Vector2 operator + (Vector2 v1, Vector2 v2)
{
    return { v1.x + v2.x, v1.y + v2.y };
}
 
constexpr Vector2 operator - (Vector2 v1, Vector2 v2)
{
    return { v1.x - v2.x, v1.y - v2.y };
}
 
constexpr Vector2 operator * (float f, Vector2 v)
{
    return { f * v.x, f * v.y };
}
 
constexpr Vector2 operator * (Vector2 v, float f)
{
    return f * v;
}
 
constexpr Vector2 operator / (Vector2 v, float f)
{
    return { v.x / f, v.y / f };
}
 
 
// json
NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(
    Vector2,
    x,
    y
)
 
} // namespace digitalcurling3
 
#endif // DIGITALCURLING3_VECTOR2_HPP