Id.java

package com.jpii.navalbattle.pavo.grid;

public class Id {
	short superId, subId;
	int mutexId;
	public Id(short superId, short subId) {
		this.superId = superId;
		this.subId = subId;
		updateMutex();
	}
	public Id(int superId, int subId) {
		this((short)superId,(short)subId);
	}
	public String toString() {
		return "("+superId+","+subId+":"+getMutexId()+")";
	}
	private void updateMutex() {
		mutexId = ((int)Math.abs(((int)superId) * 65536)) + subId;
	}
	public void setSuperId(short id) {
		if (id != superId) {
			superId = id;
			updateMutex();
		}
	}
	public void setSubId(short id) {
		if (id != subId) {
			subId = id;
			updateMutex();
		}
	}
	public void setSuperId(int id) {
		if (id != superId) {
			superId = (short)id;
			updateMutex();
		}
	}
	public void setSubId(int id) {
		if (id != subId) {
			subId = (short)id;
			updateMutex();
		}
	}
	public short getSuperId() {
		return superId;
	}
	public short getSubId() {
		return subId;
	}
	public int getMutexId() {
		return mutexId;
	}
}