math_vector2.cpp

[詳解]

 
 
// Copyright(c) 2023-2025 Design Engineering Laboratory, Saitama University
// Released under the MIT license
// https://opensource.org/licenses/mit-license.php
 
#include "math_vector2.h"
 
 
namespace designlab
{
 
Vector2& Vector2::operator +=(const Vector2& other)
{
    x += other.x;
    y += other.y;
    return *this;
}
 
Vector2& Vector2::operator -=(const Vector2& other)
{
    x -= other.x;
    y -= other.y;
    return *this;
}
 
Vector2& Vector2::operator *=(float s)
{
    x *= s;
    y *= s;
    return *this;
}
 
Vector2& Vector2::operator /=(float s)
{
    x /= s;
    y /= s;
    return *this;
}
 
Vector2 Vector2::GetNormalized() const
{
    float length = GetLength();
 
    if (math_util::IsEqual(length, 0.f))
    {
        return { 0, 0 };
    }
 
    return *this * (1.f / length);
}
 
std::string Vector2::ToString() const
{
    return std::string("( x : ") +
        math_util::FloatingPointNumToString(x) +
        std::string(", y : ") +
        math_util::FloatingPointNumToString(y) +
        std::string(")");
}
 
std::string Vector2::ToCsvString() const
{
    return math_util::FloatingPointNumToString(x) + std::string(",") +
        math_util::FloatingPointNumToString(y);
}
 
}  // namespace designlab