Edge class providing internal details of Polygon.
Constructor
Variables
read onlyworldNormal:Vec2
Normal of edge in world coordinates.
This Vec2 is immutable, and may be accessed even if the related Polygon
is not part of a Body but queries to its values will result in a debug
build error.
read onlyworldProjection:Float
World projection of polygon to edge axis.
This value can only be accessed if related Polygon is part of a Body.