score.java

名作puyo 移植的手机版

import java.util.*;
import java.io.*;
import javax.microedition.rms.*;

public class Score{
	private String[] times;
	private int[] scores;
	private int scoreNum;
	private Calendar calendar;
	private RecordStore rs;
	private String rsName;
	
	public Score(){
		calendar=Calendar.getInstance();
		rsName="HighScore";
		initValue();
	}
	
	private void initValue(){
		scoreNum=10;
		scores=new int[scoreNum];
		times=new String[scoreNum];
		for(int i=0;i<scoreNum;i++){
			StringBuffer temp=new StringBuffer();
			temp.append(calendar.get(Calendar.YEAR));
			temp.append(calendar.get(Calendar.MONTH+1));
			temp.append(calendar.get(Calendar.DAY_OF_MONTH));
			times[i]=temp.toString();
			scores[i]=0;
		}
	}
	
	public void open(){
		try{
			rs=RecordStore.openRecordStore(rsName,true);
			if(rs.getNumRecords()>0){
				loadData();
			}else{
				creatDefault();
			}
		}catch(Exception e){
			System.out.println("rs open reeor!!");
		}
	}
	
	public void loadScore(){
		try{
			open();
			if(rs!=null){
				close();
			}
		}catch(Exception e){
			System.out.println("rs open reeor!!");
		}
	}
	
	public void close(){
		if(rs!=null){
			try{
				rs.closeRecordStore();
			}catch(Exception e){
				System.out.println("rs close reeor!!");
			}
		}
	}
	
	public void loadData(){
		try{
			for(int i=0;i<scoreNum;i++){
				byte[] record=rs.getRecord(i+1);
				DataInputStream dis =new DataInputStream(new ByteArrayInputStream(record,0,record.length));
				scores[i]=dis.readInt();
				times[i]=dis.readUTF();
			}
		}catch(Exception e){
			System.out.println("load reeor!!");
		}
	}
	
	public void creatDefault(){
		try{
			for(int i=0;i<scoreNum;i++){
				ByteArrayOutputStream baos=new ByteArrayOutputStream(12);
				DataOutputStream dos=new DataOutputStream(baos);
				dos.writeInt(scores[i]);
				dos.writeUTF(times[i]);
				dos.flush();
				dos.close();
				byte[] record=baos.toByteArray();
				rs.addRecord(record,0,record.length);
			}
		}catch(Exception e){
			System.out.println("creat default data error!!");
		}
	}
	
	public void updateScores(int score){
		try{
			for(int i=0;i<scoreNum;i++){
				if(score>scores[i]){
					open();
					for(int j=scoreNum-1;j>i;j--){
						scores[j]=scores[j-1];
						times[j]=times[j-1];
					}
					scores[i]=score;
					StringBuffer temp=new StringBuffer();
					temp.append(calendar.get(Calendar.YEAR));
					temp.append(calendar.get(Calendar.MONTH+1));
					temp.append(calendar.get(Calendar.DAY_OF_MONTH));
					times[i]=temp.toString();
					updateDate();
					if(rs!=null){
						close();
					}
					break;
				}
			}
			
		}catch(Exception e){
			System.out.println("error!!");
		}
	}
	
	private void updateDate(){
		try{
			for(int i=0;i<scoreNum;i++){
				ByteArrayOutputStream baos=new ByteArrayOutputStream(12);
				DataOutputStream dos=new DataOutputStream(baos);
				dos.writeInt(scores[i]);
				dos.writeUTF(times[i]);
				dos.flush();
				dos.close();
				byte[] record=baos.toByteArray();
				rs.setRecord(i+1,record,0,record.length);
			}
		}catch(Exception e){
			System.out.println("error!!");
		}
	}
	
	public int[] getScores(){
		return scores;
	}
	
	public String[] getTimes(){
		return times;
	}

}