nettour3d.java

来自「java3D game engine design of the source 」· Java 代码 · 共 101 行

// NetTour3D.java
// Andrew Davison, July 2003, [e-mail]

/* The Tour3D world (checkboard, obstacles, scenery). 
   The scenery and obstacles are loaded from a 'tour' 
   file, as before.

   Now several robots can be present, one for
   each 'visitor' to the networked world. 

   The visitor's name appears above their robot sprite.

   The command line may also include a starting (x,z) position.

   Usage:
     java -cp %CLASSPATH%;ncsa\\portfolio.jar NetTour3D 
                  <userName>  [<xPosn> <zPosn>]  <tourFile>
*/

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;


public class NetTour3D extends JFrame
{
  private WrapNetTour3D w3d;

  private String userName = null; 
  private String tourFnm = null;
  private double xPosn = 0.0;   // default starting coord
  private double zPosn = 0.0;


  public NetTour3D(String args[]) 
  {
    super("3D NetTour");
    processArgs(args);
    setTitle( getTitle() + " for " + userName);

    Container c = getContentPane();
    c.setLayout( new BorderLayout() );
    w3d = new WrapNetTour3D(userName, tourFnm, xPosn, zPosn);
    c.add(w3d, BorderLayout.CENTER);

     addWindowListener( new WindowAdapter() {
       public void windowClosing(WindowEvent e)
       { w3d.closeLink(); }
     });

    pack();
    setResizable(false);    // fixed size display
    show();
  } // end of NetTour3D()


  private void processArgs(String[] args)
  /* Extract the name, the starting (x,z) coord, and
     tour file name from the command line. The coord is
     optional. */
  {
    if (args.length == 4) {
      userName = args[0];
      tourFnm = args[3];

      try {
        xPosn = Double.parseDouble(args[1]);
      }
      catch (NumberFormatException ex)
      { System.out.println("xPosn value must be double"); }

      try {
        zPosn = Double.parseDouble(args[2]);
      }
      catch (NumberFormatException ex)
      { System.out.println("zPosn value must be double"); }
    }
    else if (args.length == 2) {
      userName = args[0];
      tourFnm = args[1];
      System.out.println("xPosn and zPosn set to 0.0");
    }
    else {
      System.out.println( 
         "Usage: java -cp %CLASSPATH%;ncsa\\portfolio.jar NetTour3D <userName> [<xPosn> <zPosn>] <tourFile>");
      System.exit(0);
    }
  } // end of processArgs()


// -----------------------------------------

  public static void main(String[] args)
  { new NetTour3D(args); }

} // end of NetTour3D class