gamename.java

Java游戏沙丘城堡源代码/Java游戏沙丘城堡源代码

import javax.microedition.lcdui.*;
import javax.microedition.rms.*;

public class GameName extends Form implements Runnable,CommandListener
{
	//输入名字画面，继承了FOMR类，并实现了Runnable和CommandListener接口
	private TextField t;
	static String name;
	
	public GameName()
	{
		super("");
		flag = true;
		isInput = false;
	}
	
	//按键事件，得到玩家名字，或者调用导航器NAVIGATOR回到主画面
	public void commandAction(Command c,Displayable d)
	{
		String cmd = c.getLabel();
		if(cmd.equals("确定"))
		{
			name = t.getString();
			isInput = true;
		}
		else if(cmd.equals("返回"))
		{	
			flag= false;
			GameMenu.current = GameMenu.MY_RMS;
			GameMenu.show();
		}
	}
	
	boolean flag;
	boolean isInput;
	
	public void start()
	{
		Thread t = new Thread(this);
		t.start();
	}
	
	public void run() 
	{
		//加入输入框TEXT FIELD和2个按钮
		t=new TextField("请输入你的名字","无名氏",5,TextField.ANY);
		append(t);
		append("您的得分是"+":  "+MyGame.score);
		addCommand(new Command("确定",Command.OK,0));
		addCommand(new Command("返回",Command.BACK,0));
		setCommandListener(this);
		//循环等待玩家输入名字
		while(flag)
		{
			//判断是否接受名字，接受后，把资料输入到数据库中
			if(isInput)
			{
				//打开数据库
				try 
				{
					GameMIDlet.rs = RecordStore.openRecordStore(GameMIDlet.RecordName,false);
				} 
				catch (Exception e) 
				{
					System.out.println("打开数据库失败");
				}
				GameRMS rd = new GameRMS(name,MyGame.score);
				byte[] current = rd.encode();
				//写入数据
				try 
				{
					GameMIDlet.rs.setRecord(11,current,0,current.length);
				} 
				catch (Exception e)
				{
					System.out.println("写入数据失败");
				}
				GameRMS prerd = new GameRMS();
				byte[] prebyte = null;
				
				GameRMS nextrd = new GameRMS();
				byte[] nextbyte = null;
				
				byte[] temp = null;
				//用冒泡法比较数据大小并排序
				for(int i = 1;i<=10;i++)
				{
					for(int k=i+1;k<=11;k++)
					{
						try 
						{
							prebyte = GameMIDlet.rs.getRecord(i);
							nextbyte = GameMIDlet.rs.getRecord(k);
						}
						catch (Exception e) 
						{
							System.out.println("读取数据库失败");
						}
						prerd.decode(prebyte);
						nextrd.decode(nextbyte);
						if(nextrd.score>prerd.score)
						{
							temp = prebyte;
							prebyte = nextbyte;
							nextbyte = temp;
							try 
							{
								GameMIDlet.rs.setRecord(i,prebyte,0,prebyte.length);
								GameMIDlet.rs.setRecord(k,nextbyte,0,nextbyte.length);
							} 
							catch (Exception e)
							{
								System.out.println("写入数据失败");
							}
						}
					}
				}
				//关闭数据库
				try
				{
				    GameMIDlet.rs.closeRecordStore();
				}catch(Exception e)
				{
				 	System.out.println("关闭数据库失败");
				}
				//调用导航器NAVIGATOR返回主画面
				GameMenu.current = GameMenu.MY_MENU;
				GameMenu.show();
				break;
			}
			try 
			{
				Thread.sleep(100);
			} catch (Exception e) {}
		}
	}
}