#include <engine/vector3d.hpp>

void Vector3D::normalize(void)
{
	mNormalVector.xScalar(0);
	mNormalVector.yScalar(0);
	mNormalVector.zScalar(0);
	Point3D currVertex;
	Point3D nextVertex;

  for(int index=0;index<VectorPoints;index++)
	{
	  if(index==VectorPoints-1)nextVertex=mVector3D[0];
		else nextVertex=mVector3D[index+1];
		currVertex=mVector3D[index];
		mNormalVector.xScalar(mNormalVector.xScalar()+((currVertex.y()-nextVertex.y())*(currVertex.z()+nextVertex.z())));
		mNormalVector.yScalar(mNormalVector.yScalar()+((currVertex.z()-nextVertex.z())*(currVertex.x()+nextVertex.x())));
		mNormalVector.zScalar(mNormalVector.zScalar()+((currVertex.x()-nextVertex.x())*(currVertex.y()+nextVertex.y())));
	}
	if(mNormalVector.xScalar()<0)mNormalVector.xScalar(-1);
	else if(mNormalVector.xScalar()>0)mNormalVector.xScalar(1);
	if(mNormalVector.yScalar()<0)mNormalVector.yScalar(-1);
	else if(mNormalVector.yScalar()>0)mNormalVector.yScalar(1);
	if(mNormalVector.zScalar()<0)mNormalVector.zScalar(-1);
	else if(mNormalVector.zScalar()>0)mNormalVector.zScalar(1);
}