#include "pch.h" // use stdafx.h in Visual Studio 2017 and earlier
#include "Geometry.h"

AABB::AABB()
{
	min= Vec3f(1e5,1e5,1e5);
	max= Vec3f(0,0,0);
}


LineSegment::LineSegment(const Vec3f &s, const Vec3f &e):start(s), end(e) {
	calculate();
}

float LineSegment::getLength() const {
	return length;
}

Vec3f LineSegment::getDir() const {
	return dir;
}

void LineSegment::calculate(){
	Vec3f diff =end-start;
	length =diff.length();
	dir=diff.norm();
}



FaceCenterComparator::FaceCenterComparator(const std::vector<Vec3f>& centers, int axis)  
: faceCenters(centers), longAxis(axis) {}  
  
bool FaceCenterComparator::operator()(const size_t& a, const size_t& b) const {  
	return faceCenters[a][longAxis] < faceCenters[b][longAxis];  
}