/** Copyright (C) 2016 Ultimaker - Released under terms of the AGPLv3 License */

#include "AABB3D.h"

#include <limits>

#include "AABB.h"

namespace cura
{

AABB3D::AABB3D() 
: min(std::numeric_limits<int32_t>::max(), std::numeric_limits<int32_t>::max(), std::numeric_limits<int32_t>::max())
, max(std::numeric_limits<int32_t>::min(), std::numeric_limits<int32_t>::min(), std::numeric_limits<int32_t>::min())
{
}

AABB3D::AABB3D(Point3 min, Point3 max) 
: min(min)
, max(max)
{
}

Point3 AABB3D::getMiddle() const
{
    return (min + max) / 2;
}

AABB AABB3D::flatten() const
{
    return AABB(Point(min.x, min.y), Point(max.x, max.y));
}


bool AABB3D::hit(const AABB3D& other) const
{
    if (   max.x < other.min.x
        || min.x > other.max.x
        || max.y < other.min.y
        || min.y > other.max.y
        || max.z < other.min.z
        || min.z > other.max.z)
    {
        return false;
    }
    return true;
}

void AABB3D::include(Point3 p)
{
    min.x = std::min(min.x, p.x);
    min.y = std::min(min.y, p.y);
    min.z = std::min(min.z, p.z);
    max.x = std::max(max.x, p.x);
    max.y = std::max(max.y, p.y);
    max.z = std::max(max.z, p.z);   
}

void AABB3D::include(const AABB3D& aabb)
{
    // Note that this is different from including the min and max points, since when 'min > max' it's used to denote an negative/empty box.
    min.x = std::min(min.x, aabb.min.x);
    min.y = std::min(min.y, aabb.min.y);
    min.z = std::min(min.z, aabb.min.z);
    max.x = std::max(max.x, aabb.max.x);
    max.y = std::max(max.y, aabb.max.y);
    max.z = std::max(max.z, aabb.max.z);
}

void AABB3D::includeZ(coord_t z)
{
    min.z = std::min(min.z, z);
    max.z = std::max(max.z, z);
}

void AABB3D::offset(Point3 offset)
{
    min += offset;
    max += offset;
}

void AABB3D::offset(Point offset)
{
    min += offset;
    max += offset;
}

void AABB3D::expandXY(int outset)
{
    min -= Point3(outset, outset, 0);
    max += Point3(outset, outset, 0);
    if (min.x > max.x || min.y > max.y)
    { // make this AABB3D invalid
        *this = AABB3D();
    }
}

}//namespace cura

