package com.ericsson.tic.vi;

/**
 * A Pickable object is one which can be "clicked on".
 * 
 * @author	Sami Matilainen
 * @version 1.0 (2008-12-04)
 */
public class Pickable {
	
	/** Used by the newPID() method to create a new id */
	private static byte[] gpid = {(byte)1, (byte)0, (byte)0};
	// (0, 0, 0) is reserved for blocking objects (this is clever)
	
	/** The pickable id of this object. */
	public byte[] pid;
	
	/** Indicates wheter an object with this id is highlighted or not. */
	public boolean highlighted;
	
	/**
	 * Creates a pickable object.
	 */
	public Pickable() {
		
		highlighted = false;
		
		pid = new byte[3];
		
		pid[0] = gpid[0];
		pid[1] = gpid[1];
		pid[2] = gpid[2];
		
		gpid[0]++;
		if (gpid[0] >= 127) {
			gpid[0] = 0;
			gpid[1]++;
			if (gpid[1] >= 127) {
				gpid[1] = 0;
				gpid[2]++;
				if (gpid[2] >= 127) {
					System.out.println("Pickable.Pickable > Too many objects (more than 2 million?)");
					System.exit(0);
				}
			}
		}
		
	}
	
	/**
	 * Creates a new pickable id.
	 */
	public void newPID() {
		
		pid = new byte[3];
		
		pid[0] = gpid[0];
		pid[1] = gpid[1];
		pid[2] = gpid[2];
		
		gpid[0]++;
		if (gpid[0] >= 127) {
			gpid[0] = 0;
			gpid[1]++;
			if (gpid[1] >= 127) {
				gpid[1] = 0;
				gpid[2]++;
				if (gpid[2] >= 127) {
					System.out.println("Pickable.Pickable > Too many objects (more than 2 million?)");
					System.exit(0);
				}
			}
		}
		
	}
	
}