testapplet.java_

a java game code for java

package eatbean.util.algorithm;

import java.awt.*;
import java.awt.event.*;
import java.applet.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2002</p>
 * <p>Company: </p>
 * @author unascribed
 * @version 1.0
 */

public class TestApplet extends Applet {
	private int[][] map = {
						{ 0, 1, 0, 0, 0, 0, 0, 0, 0 },
						{ 0, 0, 0, 1, 0, 0, 0, 0, 0 },
						{ 0, 1, 0, 1, 0, 0, 0, 0, 0 },
						{ 0, 1, 1, 1, 1, 1, 0, 0, 0 },
						{ 0, 1, 0, 1, 1, 1, 0, 0, 0 },
						{ 0, 1, 0, 0, 0, 0, 0, 0, 0 },
						{ 0, 1, 0, 1, 0, 1, 0, 0, 0 },
						{ 0, 1, 0, 1, 1, 1, 1, 0, 0 },
						{ 0, 1, 0, 1, 0, 0, 1, 1, 1 },
						{ 0, 1, 0, 0, 0, 0, 0, 0, 0 },
						{ 0, 1, 0, 0, 0, 0, 0, 0, 0 },
						{ 0, 1, 1, 1, 1, 1, 1, 0, 0 },
						{ 0, 1, 0, 0, 0, 0, 0, 0, 0 },
						{ 0, 1, 0, 1, 1, 1, 1, 1, 1 },
						{ 0, 1, 0, 0, 0, 0, 0, 0, 0 },
						{ 0, 1, 0, 1, 0, 1, 0, 0, 0 },
					};
	private final int SPACE = 20;
	private Node path = null;

    boolean isStandalone = false;
    Button button1 = new Button();
    //Get a parameter value
    public String getParameter(String key, String def) {
        return isStandalone ? System.getProperty(key, def) :
            (getParameter(key) != null ? getParameter(key) : def);
    }

    //Construct the applet
    public TestApplet() {
    }
    //Initialize the applet
    public void init() {
        try {
            jbInit();
        }
        catch(Exception e) {
            e.printStackTrace();
        }
    }
    //Component initialization
    private void jbInit() throws Exception {
        button1.setLabel("button1");
        button1.setBounds(new Rectangle(223, 10, 65, 39));
        button1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(ActionEvent e) {
                button1_actionPerformed(e);
            }
        });
        this.setLayout(null);
        this.add(button1, null);
    }
    //Start the applet
    public void start() {
    }
    //Stop the applet
    public void stop() {
    }
    //Destroy the applet
    public void destroy() {
    }
    //Get Applet information
    public String getAppletInfo() {
        return "Applet Information";
    }
    //Get parameter info
    public String[][] getParameterInfo() {
        return null;
    }
	public void paint(Graphics g) {
	    drawMatrix(g);
		drawPath(g);
	}
	private void drawMatrix(Graphics g) {
		int x, y;
		for(y = 0; y < map.length; y++)
			for(x = 0; x < map[0].length; x++) {
			    g.drawString(Integer.toString(map[y][x]), SPACE+x*SPACE, SPACE+y*SPACE);
			}
		x = map[0].length;
		y = map.length;
		for(int xx = 0; xx < x; xx++)
			g.drawString("_"+xx, SPACE+xx*SPACE, SPACE+y*SPACE);
		for(int yy = 0; yy < y; yy++)
			g.drawString("|"+yy, SPACE+x*SPACE, SPACE+yy*SPACE);
	}
	private void drawPath(Graphics g) {
		if(path == null) System.out.println("path == null");
		Node tmp = path;
		while(tmp != null) {
			g.drawString("■", SPACE+tmp.x*SPACE, SPACE+tmp.y*SPACE);
			//System.out.println(tmp);
		    tmp = tmp.parent;
		}
	}

    void button1_actionPerformed(ActionEvent e) {
		System.out.println("Triger ActionPerform Event");
		PathFinder pathFinder = new PathFinder(map, 0);
		Node sNode = new Node(0, 0);
		Node eNode = new Node(8, 15);
		path = pathFinder.findPath(sNode, eNode);
		this.repaint();
    }
}