room.java

a java game code for java

/**
 * Title:        吃豆子<p>
 * Description:  小游戏<p>
 * Copyright:    Copyright (c) Nothing<p>
 * Company:      Raindrop<p>
 * @author Nothing
 * @version 1.0
 */
package eatbean;

import eatbean.util.ImageTool;
//
import java.awt.*;
import java.util.Hashtable;

public class Room extends MapElement {
	public static final int BASE_NUM = 20;
	public static final int STYLE_DEFAULT = BASE_NUM + 1;
	public static final int STYLE_EMPTY = BASE_NUM + 2;
	public static final int STYLE_SPRITE_BORN = BASE_NUM + 3;
	public static final int STYLE_FAIRY_BORN = BASE_NUM + 4;
	private static Hashtable styleTable = new Hashtable();
	static {
	    styleTable.put(new Integer(STYLE_DEFAULT), "r1.gif");
		styleTable.put(new Integer(STYLE_EMPTY), "r0.gif");
		styleTable.put(new Integer(STYLE_SPRITE_BORN), "r0.gif");
		styleTable.put(new Integer(STYLE_FAIRY_BORN), "r0.gif");
	}

	public static final int POINT = 10;
	private Image img = null;
	private static Hashtable imgBuffTable = new Hashtable();
	public Room(int style, int x, int y) {
		super(style, x, y);
		img = getImage(style);
	}
	public void parseWidthAndHeight() {
		width = ELEMENT_MAX_SIZE;
		height = ELEMENT_MAX_SIZE;
	}
	public void draw(OffScreen offScreen) {
		offScreen.drawImage(img, x, y);
	}
	public void setEmpty() {
		if(style == STYLE_EMPTY) return;
		style = STYLE_EMPTY;
		img = getImage(style);
	}
	public boolean isEmpty() {
	    return !(style == STYLE_DEFAULT);
	}
	private Image getImage(int imgIndex) {
		Image result = null;
		synchronized(imgBuffTable) {    //  同步,保证同一个Image不被调入内存两次
			result = super.getImage(imgBuffTable, styleTable, imgIndex);
		}
		return result;
	}
}