*/
#include "Vector2.h"
+#include "debug.h"
+
#include "mathw.h"
/// ***** Constructors/Destructors *****
Vector2::Vector2()
- : x(0), y(0)
+ : m_fX(0), m_fY(0)
{
}
-Vector2::Vector2(float x, float y)
- : x(x), y(y)
-{
-
-}
-Vector2::Vector2(const Vector2& vec)
- : x(vec.x), y(vec.y)
-{
-
-}
-Vector2::~Vector2()
+Vector2::Vector2(float fX, float fY)
+ : m_fX(fX), m_fY(fY)
{
}
void Vector2::zero()
{
- x = 0;
- y = 0;
+ m_fX = 0;
+ m_fY = 0;
}
void Vector2::unit()
{
- float len = length();
+ float fLen = length();
- x /= len;
- y /= len;
+ m_fX /= fLen;
+ m_fY /= fLen;
}
float Vector2::angle() const
{
//TODO
- //return atan2A(y,x);
+ DASSERT(false);
+ //return atan2A(m_fY,m_fX);
return 0;
}
float Vector2::length() const
}
float Vector2::sqrLength() const
{
- return x*x + y*y;
+ return this->dot(*this);
}
-float Vector2::dot(const Vector2& v) const
+float Vector2::dot(const Vector2& vec) const
{
- return x*v.x + y*v.y;
+ return m_fX * vec.m_fX + m_fY * vec.m_fY;
}
string Vector2::toString() const
{
// long just to be safe
- char* strX = new char[50];
- char* strY = new char[50];
-
- sprintf(strX, "%f", x);
- sprintf(strY, "%f", y);
-
- string val = (string)"Vector2 x: " + strX + ", y: " + strY;
+ char rgchars[100];
- // deletes the allocated memory, not just what is used by sprintf
- delete []strX;
- delete []strY;
+ sprintf(rgchars, "Vector2 X: %f, Y: %f", m_fX, m_fY);
- return val;
+ return rgchars;
}
void Vector2::print() const
{
- printf("%s\n",toString().c_str());
+ printf("%s\n", toString().c_str());
}
Vector2 Vector2::add(const Vector2& vec) const
{
- return Vector2(x+vec.x, y+vec.y);
+ return Vector2(m_fX + vec.m_fX, m_fY + vec.m_fY);
}
Vector2 Vector2::subtract(const Vector2& vec) const
{
- return Vector2(x-vec.x, y-vec.y);
+ return Vector2(m_fX - vec.m_fX, m_fY - vec.m_fY);
}
-Vector2 Vector2::multiply(float c) const
+Vector2 Vector2::multiply(float f) const
{
- return Vector2(x*c, y*c);
+ return Vector2(m_fX * f, m_fY * f);
}
-Vector2 Vector2::divide(float c) const
+Vector2 Vector2::divide(float f) const
{
- return Vector2(x/c, y/c);
+ return Vector2(m_fX / f, m_fY / f);
}
/// ***** Public Methods *****
{
return vec1.subtract(vec2);
}
-Vector2 operator*(float c, const Vector2& vec)
+Vector2 operator*(float f, const Vector2& vec)
{
- return vec.multiply(c);
+ return vec.multiply(f);
}
-Vector2 operator*(const Vector2& vec, float c)
+Vector2 operator*(const Vector2& vec, float f)
{
- return vec.multiply(c);
+ return vec.multiply(f);
}
-Vector2 operator/(const Vector2& vec, float c)
+Vector2 operator/(const Vector2& vec, float f)
{
- return vec.divide(c);
+ return vec.divide(f);
}
void operator+=(Vector2& vec1, const Vector2& vec2)
{
- vec1.x += vec2.x;
- vec1.y += vec2.y;
+ vec1.m_fX += vec2.m_fX;
+ vec1.m_fY += vec2.m_fY;
}
void operator-=(Vector2& vec1, const Vector2& vec2)
{
- vec1.x -= vec2.x;
- vec1.y -= vec2.y;
+ vec1.m_fX -= vec2.m_fX;
+ vec1.m_fY -= vec2.m_fY;
}
-void operator*=(Vector2& vec, float c)
+void operator*=(Vector2& vec, float f)
{
- vec.x *= c;
- vec.y *= c;
+ vec.m_fX *= f;
+ vec.m_fY *= f;
}
-void operator/=(Vector2& vec, float c)
+void operator/=(Vector2& vec, float f)
{
- vec.x /= c;
- vec.y /= c;
+ vec.m_fX /= f;
+ vec.m_fY /= f;
}