Vector2.hpp

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#pragma once
 
#include <string>
 
namespace stw
{
struct Vector2
{
    constexpr Vector2()
        : Vector2(0, 0)
    {}
 
    constexpr Vector2(const float x, const float y)
        : x(x), y(y)
    {}
 
    float x;
    float y;
 
    static Vector2 Normalize(const Vector2& v);
    static Vector2 Lerp(const Vector2& a, const Vector2& b, float t);
    static Vector2 TripleProduct(const Vector2& a, const Vector2& b, const Vector2& c);
 
    [[nodiscard]] float Magnitude() const;
 
    [[nodiscard]] float SqrMagnitude() const;
 
    [[nodiscard]] Vector2 Normalized() const;
 
    [[nodiscard]] float Dot(const Vector2& other) const;
 
    [[nodiscard]] float Distance(const Vector2& other) const;
 
    [[nodiscard]] float Angle(const Vector2& other) const;
 
    [[nodiscard]] float Major() const;
 
    [[nodiscard]] Vector2 PositivePerpendicular() const;
 
    [[nodiscard]] Vector2 NegativePerpendicular() const;
 
    [[nodiscard]] Vector2 NewMagnitude(float newMagnitude) const;
 
    void RotateAround(const Vector2& center, float angle);
 
    [[nodiscard]] std::string ToString() const;
 
    constexpr static Vector2 Zero();
 
    Vector2 operator+(const Vector2& other) const;
    Vector2 operator-(const Vector2& other) const;
    Vector2 operator+=(const Vector2& other);
    Vector2 operator-=(const Vector2& other);
    Vector2 operator+=(float scalar);
    Vector2 operator-=(float scalar);
    Vector2 operator*=(float scalar);
    Vector2 operator/=(float scalar);
    bool operator==(const Vector2& other) const;
    Vector2 operator-() const;
 
    friend Vector2 operator+(Vector2 vec, float scalar);
    friend Vector2 operator-(Vector2 vec, float scalar);
    friend Vector2 operator*(Vector2 vec, float scalar);
    friend Vector2 operator*(float scalar, Vector2 vec);
    friend Vector2 operator/(Vector2 vec, float scalar);
};
 
constexpr Vector2 Vector2::Zero()
{
    return { 0.0f, 0.0f };
}
 
std::ostream& operator<<(std::ostream& os, const Vector2& vec);
}