Quad.copy constructor Null safety

Quad.copy(
  1. Quad other
)

Create a quad as a copy of other.

Implementation

Quad.copy(Quad other)
    : _point0 = Vector3.copy(other._point0),
      _point1 = Vector3.copy(other._point1),
      _point2 = Vector3.copy(other._point2),
      _point3 = Vector3.copy(other._point3);