public City(Civilization owner,Point start,int population,int id,int maxSize) {
		LAND=new ArrayList<Point>();
		LAND.add(start);
		CENTER=start;
		//growthRate=owner.growthRate;
		//growth=owner.getPreference(start)*growthRate/100;
		this.population=population;
		this.owner=owner;
		this.id=id;
		startYear=owner.WORLD.year;
		start.owner=this;
		this.maxSize=maxSize;
		populationDensity=owner.populationDensity;
		maxPopulation=maxSize*owner.populationDensity;
		sea=false;
		river=false;
		for (Point p:start.adjacent)
			if (p.biome==Biome.SEA)
				sea=true;
			else if (p.biome==Biome.RIVER)
				river=true;
	}