splashscreen.java

游戏名称：九宫阵 运行平台：j2me 规范：midp 说明：一款很经典的游戏源码

/*
 * Copyright (C) 2005-2006 Leopardo.f
 *
 * This file is part of M-SuDoKu, a J2ME version of SuDoKu.
 *
 * M-SuDoKu is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 * 
 * M-SuDoKu is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public
 * License along with M-SuDoKu; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA  02111-1307, USA.  Or, visit http://www.gnu.org/copyleft/gpl.html
 */

package MSuDoKu;

import java.util.Timer;
import java.util.TimerTask;
import javax.microedition.lcdui.*;
import java.io.IOException;

/**
 * Class implementing splash screen
 * @see App
 * @author Leopardo.f
 */
public class SplashScreen extends Canvas
//public class PorcoDio extends FullCanvas
{
    private static final String sBack = "sfondo.PNG", sLogo = "logo4.png";
    private Display dCurrent;
    private Displayable dbleNext;
    private Timer tShow;
    private Image iBack, iLogo;
    private int nTime2Show;
    private byte yCount;
    private SplashScreen pdThis;
    
    public SplashScreen (Display d, Displayable dble, int nT)
    {
        dCurrent = d;
        dbleNext =dble;
        nTime2Show = nT;
        tShow = new Timer();
        pdThis = this;
        try
        {
            iBack = Image.createImage ("/MSuDoKu/" + sBack);
            iLogo = Image.createImage ("/MSuDoKu/" + sLogo);
        } catch (IOException ioe)
        {
//            ioe.printStackTrace();
//            System.out.println ("Img not found: " + sBack + ", " + sLogo);
            iBack = null;
            iLogo = null;
            nTime2Show = 0;
        }
        
        dCurrent.setCurrent (this);
    }
    
    protected void paint (Graphics g)
    {
        int yDim, xDim, xDimImg, yDimImg, x, y;

        xDim = getWidth();
        yDim = getHeight();

        if (iBack != null)
        {
            xDimImg = iBack.getWidth();
            yDimImg = iBack.getHeight();
            for (x = 0; x < xDim; x += xDimImg)
                for (y = 0; y < yDim; y += yDimImg)
                    g.drawImage (iBack, x, y, Graphics.TOP|Graphics.LEFT);
        }
        
        if (iLogo != null)
        {
            g.setClip ((xDim - iLogo.getWidth()) / 2, (yDim - iLogo.getHeight()) / 2, iLogo.getWidth(), iLogo.getHeight());
            g.drawImage (iLogo, xDim / 2, yDim / 2, Graphics.VCENTER | Graphics.HCENTER);
            g.setClip (0, 0, xDim, yDim);
        }
    }
    
    protected void keyPressed (int nCode)
    {
        hide();
    }

    protected void pointerPressed (int nCode)
    {
        hide();
    }
    
    private void hide()
    {
        tShow.cancel();
        dCurrent.setCurrent (dbleNext);
    }
    
    protected void showNotify()
    {
        if (nTime2Show > 0)
            tShow.schedule (new TimerTask ()
            {
                public void run()
                {
                    pdThis.hide();
                }
            }, nTime2Show, nTime2Show);
        else
            pdThis.hide();
    }
}