package th;
/* Region class
 * Regions are generators of special areas. They usually return a node with a 
 * chunk of map attached to it, and are typically invoked by constructors of 
 * special nodes. */ 

class Region {
    // Create the region. The constructor should concern itself only
    // with changing the intial node and locating the branch; let the
    // generator do the generating proper.
	
    // This will replace the inital description:
    public static String description = "This room has regional flair.";
    public static String name = "Regional Branch";
	
    public static int NORTH = 0, SOUTH = 1, EAST = 3, WEST = 2;
    public static Class[] regions_to_make = {
	//Utl.gclass("ZeiusRegion"),

	Utl.gclass("WonkaRegion"),
	Utl.gclass("SpanningRegion"),
	Utl.gclass("SpanningRegion"),
	Utl.gclass("ConferenceRegion"),
	Utl.gclass("ScifiRegion"),
	Utl.gclass("HoboRegion")
    };

    public Region (Node start, int region) {
	int initdr = Utl.rn(3);
	int stop = 0;
	while (stop < 4) {
	    initdr = (initdr + 1)%4;
	    if (initdr == 0 && start.north != null) {
		stop++; continue;
	    }
	    if (initdr == 1 && start.south != null) {
		stop++; continue;
	    }
	    if (initdr == 2 && start.west != null) {
		stop++; continue;
	    }
	    if (initdr == 3 && start.east != null) {
		stop++; continue;
	    }
	    generate(start, region, initdr);
	    break;
	}
    }
    // Override this method!
    public void generate (Node origin, int region, int direction) {
	Node tmp = 
	    (Node)Utl.newInstance(Utl.rn(Node.non_unique_special_nodes));
	tmp.region = region;
	Map.makelink(tmp, origin, direction);
		
    }
}