humanplayer.java

ParallelConnectFour是一个java小游戏

package edu.rit.cs.mlr5773.connectfour;

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

/**
 * A Human Player.  Chooses a move by watching the board panel for
 * mouse clicks.  If the user chooses an invalid move, the system beeps
 * and waits for another move.
 *
 * @author Mark Roth
 */
public class HumanPlayer extends Player implements MouseListener {

  /** The board panel to watch for mouse clicks on */
  private BoardPanel panel;

  /**
   * Creates a new Human Player
   */
  public HumanPlayer( ConnectFourGame game, int player, BoardPanel panel ) {
    super( game, player );
    this.panel = panel;
  }

  /**
   * Ignore this Mouse Clicked event
   */
  public void mouseClicked( MouseEvent e ) {
  }

  /**
   * Ignore this Mouse Entered event
   */
  public void mouseEntered( MouseEvent e ) {
  }

  /**
   * Ignore this MouseExited Event
   */
  public void mouseExited( MouseEvent e ) {
  }

  /**
   * When the user presses either mouse button, consider it a move
   * in the column of the mouse cursor.  Assumes each column is 50
   * pixels wide.  Removes self as a listener to the panel so that
   * another player can grab the mouse as its own.
   */
  public void mousePressed( MouseEvent e ) {
    Point p = e.getPoint();
    Point move = new Point( p.x / 50, 5-(p.y/50) );

    if( game.isValidMove( move.x ) ) {
      panel.removeMouseListener( this );
      game.move( move.x );
    }
    else {
      Toolkit.getDefaultToolkit().beep();
    }
  }

  /**
   * Ignore this MouseReleased Event.
   */
  public void mouseReleased( MouseEvent e ) {
  }

  /**
   * Process request by game to make a move.  Attach as a listener to the
   * panel.
   */
  public void move() {
    panel.addMouseListener( this );
  }

}