Encapsulate mapseenunit and mapseenhive in a class

[drowdemon]

Possibly make a class that stores the vectors these have, so that the metabool get function gets the player that asked for the data and can confirm that its correct without having to ask for the unit or hive calling the function

[drowdemon]

mapseenunit no longer exists as of commit 7445e81
However, this may still be desirable for mapseenhive