Doska is a simple java program made for help people studying Brazil Geography.
It counts on an simple interface to retrieve information about some topics and a special module called Trivia , whose objective is to test the people's abilities.
This implementation of prolog is used within the code as a engine to retrieve information and keep the informations about the program UI.
internal_STATE_COLOR- used for keep the state colors; it helps on the on-click-recognition on each state by its color spectrum as seen below :
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internal_STATE_REGION- used for keep the regions of the states. -
internal_CAPITAL_OF- used for keep thebelonginginformation regarding capital-state. -
internal_CITIES_BY_STATE- used for keep the main cities list for state. -
internal_MAP_LOCATION- used for keep the cities location on the internal map in the program. -
internal_CITY_POINT- used for keep the points of the cities so the distance between two cities can be calculated. -
internal_CITIZEN_CALLED- used for keep the name os the citizen on each city. -
internal_CLIMATE_BY_STATE- used for keep the climate information on all the states. -
internal_FURTHER_INFORMATIONS- used for keep further informations about a city. -
internal_USER_FURTHER_INFORMATIONS- used for keep further information the people who use the program will add.

