Lib consists of two logical parts:
Library of general-purpose structures
These classes belong to VCMI_lib project and handle objects specific to game, used by higher-level mechanics and interfaces. Therefore, library needs to be compiled prior to any other project in solution.
Game object handlers
These handlers contain all the info about game objects extracted from config files and their general behaviour. Handlers are avaliable from LibClasses class defined in VCMI_lib.h file.