An absolute Pos. Mutation of this pos will directly change it's position with no other offsets or other side effects.
An immutable Pos. Typically used as a position "anchor" in other positions
A relative Pos wth an offset supplier. Offsets a parent Pos. This position is immutable in the direct sense. Mutation of this pos via set, inc, and dec does not affect position.
Defines the mutable position of something
An immutable Pos based on a reference value supplier. Mutation of this pos will have no effect.
A relative Pos. Offsets a parent Pos. Mutation of this pos will alter the offset.
A relative Pos wth a secondary offset supplier. Offsets a parent Pos. Mutation of this pos will alter the offset.