Territorial Victory conditions

[dwrx]

Player must control >= 51% of the world's land. This would require a focus on expansion, city-building, and possibly some military action for defense.

Tasks:

• At the end of the turn, check the percentage of map tiles controlled by the player out of the total number of map tiles.
• Make every new Settler more expensive both in terms of production points and gold. Consider also Settlers that are already in the production queues of all cities.