// Returns true if these Bounds share any area in common with another.
bool overlaps(const Bounds& other, bool force2d = false) const
{
Point otherMid(other.mid());
return
std::abs(m_mid.x - otherMid.x) <=
width() / 2.0 + other.width() / 2.0 &&
std::abs(m_mid.y - otherMid.y) <=
depth() / 2.0 + other.depth() / 2.0 &&
(force2d || std::abs(m_mid.z - otherMid.z) <=
height() / 2.0 + other.height() / 2.0);
}
