Vector2D 예제

Vector2D_2.zip

#pragma once

template<class T>

class Vector2D

{

public:

T x_, y_;

Vector2D()

:x_(0.0f), y_(0.0f)

{}

Vector2D(const T &_x, const T& _y)

:x_(_x), y_(_y)

{}

void print()

{

printf("%f %f", x_, y_);

}

T getMagnitue()

{

return sqrt(x_*x_ + y_*y_);

}

void normalize()

{

const T magnitude = getMagnitue();

x_ /= magnitude;

y_ /= magnitude;

}

friend std::ostream& operator << (std::ostream& stream, const Vector2D& vec)

{

std::cout << vec.x_ << " " << vec.y_ << std::endl;

return stream;

}

};

template<class T>

T dotProduct(const Vector2D<T>& vec0, const Vector2D<T>& vec1)

{

return vec0.x_ * vec1.x_ + vec0.y_ * vec1.y_;

}