Vector.cpp

#include "Vector.h"

Vector::Vector(double px, double py, double pz) : x(px), y(py), z(pz) {
}

double Vector::Dot(Vector v) {
   return (this->x * v.x) + (this->y * v.y) + (this->z * v.z);
}

double Vector::Length(){
   return sqrt(this->Dot(*this));
}

Vector Vector::Cross(Vector v) {
   return Vector(this->y*v.z - this->z * v.y,
      this->z*v.x - this->x * v.z,
      this->x*v.y - this->y * v.x);
}

Vector Vector::Add(Vector v) {
   return Vector(this->x + v.x, this->y + v.y, this->z + v.z);
}

Vector Vector::Subtract(Vector v) {
   return Vector(this->x - v.x, this->y - v.y, this->z - v.z);
}

Vector Vector::Scale(double s) {
   return Vector(this->x * s, this->y * s, this->z * s);
}

Vector Vector::Normalize() {
   double mag = this->Length();
   if (mag == 0.0) {
      return this->Scale(INFINITY); 
   }
   else {
      return this->Scale(1.0 / mag);
   }
}