En:WorldCity

Class WorldCity

Class is used for operations doing with cities on worldmap.

CreateCity	Create new city
AddCityToMap	Add earlier created city (with help method CreateCity) to worldmap
GetCityByName	Set pointer in list of cities to current city
SetVisible	Set visibility state for current city
GetVisible	Get visibility state for current city
SetDefaultMap	Set by current city location name that will be loaded on default
GetDefaultMap	Get location name which is set by default for current city
Free	Object destructor