mgame.java

手机版挖雷 很经典的代码呀,日,真麻烦

package mine;

import java.util.Date;
import java.util.Random;

import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;

public class MGame extends Canvas implements CommandListener{
	private static Mine pMain;
	private static Display display;
	
    private static final int GRIDSIZE = 8;
    private static final int MINECOUNT = 15;
    private static int Width, Height, selx, sely, leftbomb;
    private static byte grid[][];       // 用于存放扫雷数据
    private static boolean gameover;    // 是否结束
    private static Random rand;         // 产生随机数

    private static Image ExScreenImg;   // 扩展图像层
    private static Graphics Exg;
    private static Image TitleImg, MineImg, fMineImg, HideImg, fHideImg, FlagImg, fFlagImg, NumImg[], fNumImg[];

    
    // 定义菜单
    private static Command ContCmd = new Command("继续游戏",Command.OK, 0);
    private static Command StartCmd = new Command("新游戏",Command.OK, 1);
    private static Command ExitCmd = new Command("退出",Command.EXIT, 2);
    private static Command HelpCmd = new Command("帮助信息",Command.OK, 3);
    private static Command OKCmd = new Command("确定",Command.OK, 0);
    
    final private static String openSnd="开启声音", closeSnd="关闭声音", openVib="开启振动", closeVib="关闭振动";
    private static Command SndCmd, VibCmd;

    public static boolean Snd, Vib;
    
	public MGame(Mine mine) {
		super();
		pMain = mine;
		
        Width = (getWidth()-145) / GRIDSIZE;//(getWidth()-1) / GRIDSIZE;
        Height = (getHeight()-145) / GRIDSIZE;
        System.out.println(Width+"==="+Height);

        grid = new byte[Height][Width];
        rand = new Random((new Date()).getTime());
        NumImg = new Image[8];
        fNumImg = new Image[8];

        gameover = true;

        int i;
        // 预先载入图片
        try
        {
            TitleImg = Image.createImage("/images/title.png");
            MineImg = Image.createImage("/images/mine.png");
            fMineImg = Image.createImage("/images/minef.png");
            HideImg = Image.createImage("/images/hide.png");
            fHideImg = Image.createImage("/images/hidef.png");
            FlagImg = Image.createImage("/images/flag.png");
            fFlagImg = Image.createImage("/images/flagf.png");
            for (i=1; i<=8; i++)
            {
                NumImg[i-1] = Image.createImage("/images/n"+i+".png");
                fNumImg[i-1] = Image.createImage("/images/n"+i+"f.png");
            }
        }
        catch(Exception ex){ex.printStackTrace();}
        
        // 初始化图像缓存（宽度必须为8的倍数）
        ExScreenImg = Image.createImage(Width*GRIDSIZE+15, Height*GRIDSIZE+1);
        Exg = ExScreenImg.getGraphics();
        
        Snd = true;
        Vib = true;
        
        if (Snd) SndCmd = new Command(closeSnd, Command.OK, 4);
        else SndCmd = new Command(openSnd, Command.OK, 4);
        if (Vib) VibCmd = new Command(closeVib, Command.OK, 5);
        else VibCmd = new Command(openVib, Command.OK, 5);

        // 添加菜单
        addCommand(StartCmd);
        addCommand(ExitCmd);
        addCommand(HelpCmd);
        addCommand(SndCmd);
        addCommand(VibCmd);
        
        // 画标题
        Exg.drawImage(TitleImg,0,0,20);
    }
	
    public void activate(Display disp)
    {
        display = disp;
        display.setCurrent(this); // 设置显示目标
        setCommandListener(this); // 监视菜单选择
    }
    
	protected void paint(Graphics g) {
		// TODO Auto-generated method stub
		g.fillRect(0,0,this.getWidth(),this.getHeight());
		g.drawImage(ExScreenImg,0,0,0);
	}

    protected void keyPressed(int kcode)  // 按键响应
    {
        if (gameover) return;

        int bomb = 0;
        int oldx = selx;
        int oldy = sely;
        switch(kcode)
        {
        case '1':     // 1,挖开
            System.gc();  // 先释放无用的资源
            if (grid[sely][selx] >= 10 && grid[sely][selx] < 20)
            {
                grid[sely][selx] -= 10;
                if (grid[sely][selx] == 0) Expand(selx, sely);
            }
            else if (grid[sely][selx] < 10)
            {
                if (!SafeExp(selx, sely)) bomb = 1;
            }
            break;

        case '3':     // 3,作标记
            System.gc();
            if (grid[sely][selx] >= 10)
            {
                if (grid[sely][selx] < 20)
                {
                    grid[sely][selx] += 10;
                    leftbomb --;
                }
                else
                {
                    grid[sely][selx] -= 10;
                    leftbomb ++;
                }
            }
            break;

        case '2':     // 2
        case -59:     //上键
        case -1:
            sely --;
            break;
        case '4':     // 4
        case -61:   // 左向键
        case -3:
            selx--;
            break;
        case '6':     // 6
        case -62:   // 右向键
        case -4:
            selx++;
            break;
        case '5':     // 5
        case '8':     // 8
        case -60:   // 下键
        case -2:
            sely++;
            break;
        }
        if (selx < 0) selx = 0;
        if (selx > Width-1) selx = Width-1;
        if (sely < 0) sely = 0;
        if (sely > Height-1) sely = Height-1;

        DrawBlock(oldx, oldy, false);
        if (bomb == 0)
            bomb = DrawBlock(selx, sely, true);
        else
            DrawBlock(selx, sely, true);

        Exg.setColor(0xffffff);
        Exg.fillRect(89, 26, 13, 13);
        Exg.setColor(0);
        Exg.drawString(""+leftbomb, 101, 26, Graphics.RIGHT | Graphics.TOP);

        if (bomb == 1)
        {
            gameover = true;
//            SoundPlay(1);
//            if (Vib) Vibrator.triggerVibrator(150);
            Exg.drawString("爆", 101, 39, Graphics.RIGHT | Graphics.TOP);
            Exg.drawString("炸", 101, 52, Graphics.RIGHT | Graphics.TOP);
        }
        if (Judge())
        {
            gameover = true;
//            SoundPlay(0);
            Exg.drawString("成", 101, 39, Graphics.RIGHT | Graphics.TOP);
            Exg.drawString("功", 101, 52, Graphics.RIGHT | Graphics.TOP);
        }
        this.repaint();
//        ExScreenImg.blitToScreen(0,0);
    }

    protected void keyRepeated(int kcode) //按钮连按响应
    {
        if (gameover) return;

        int oldx = selx;
        int oldy = sely;
        switch(kcode)
        {
        case '2':
        case -59:   //up
        case -1:
            sely --;
            break;
        case '4':
        case -61:   // LEFT
        case -3:
            selx--;
            break;
        case '6':
        case -62:   // RIGHT
        case -4:
            selx++;
            break;
        case '5':
        case '8':
        case -60:   // DOWN
        case -2:
            sely++;
            break;
        }
        if (selx < 0) selx = 0;
        if (selx > Width-1) selx = Width-1;
        if (sely < 0) sely = 0;
        if (sely > Height-1) sely = Height-1;

        DrawBlock(oldx, oldy, false);
        DrawBlock(selx, sely, true);
        this.repaint();
//        ExScreenImg.blitToScreen(0,0);
    }

    // 是否全部完成判断
    private boolean Judge()
    {