options.java

j2me上的FIR游戏 从原代码光盘上复制

// Decompiled by DJ v2.9.9.60 Copyright 2000 Atanas Neshkov  Date: 2005-9-4 4:09:26
// Home Page : http://members.fortunecity.com/neshkov/dj.html  - Check often for new version!
// Decompiler options: packimports(3) 
// Source File Name:   Options.java

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

public class Options
    implements CommandListener, ItemStateListener
{
    private FiveMIDlet midFive;
    private Form frmOptions;
    private Command cmdOk;
    private Command cmdCancel;
    private Gauge ggSize;
    private ChoiceGroup cgFirst;
    private ChoiceGroup cgDegree;
    private int borderSize;
    private boolean computerFirst;
    private int degree;
    public Options(FiveMIDlet m)
    {
        borderSize = 13;
        computerFirst = true;
        degree = 1;
        midFive = m;
        load();
        frmOptions = new Form("游戏设置");
        ggSize = new Gauge("棋盘大小: " + borderSize + " X " + borderSize, true, 10, borderSize - 9);
        frmOptions.append(ggSize);
        cgFirst = new ChoiceGroup(null, 2);
        cgFirst.append("对方先行", null);
        cgFirst.setSelectedIndex(0, computerFirst);
        frmOptions.append(cgFirst);
        cgDegree = new ChoiceGroup("难度等级:", 1);
        cgDegree.append("简单", null);
        cgDegree.append("中等", null);
        cgDegree.append("较难", null);
        cgDegree.setSelectedIndex(degree - 1, true);
        frmOptions.append(cgDegree);
        frmOptions.setItemStateListener(this);
        cmdOk = new Command("确定", 4, 2);
        cmdCancel = new Command("取消", 3, 1);
        frmOptions.addCommand(cmdOk);
        frmOptions.addCommand(cmdCancel);
        frmOptions.setCommandListener(this);
    }

    public int borderSize()
    {
        return borderSize;
    }

    public boolean computerFirst()
    {
        return computerFirst;
    }

    public int degree()
    {
        return degree;
    }

    public Form frmOptions()
    {
        return frmOptions;
    }

    public void itemStateChanged(Item item)
    {
        if(item == ggSize)
        {
            int bs = ggSize.getValue() + 9;
            ggSize.setLabel("棋盘大小: " + bs + " X " + bs);
        }
    }

    public void commandAction(Command c, Displayable s)
    {
        if(c == cmdOk)
        {
            borderSize = ggSize.getValue() + 9;
            if(borderSize > 19)
                borderSize = 19;
            if(borderSize < 9)
                borderSize = 9;
            computerFirst = cgFirst.isSelected(0);
            degree = cgDegree.getSelectedIndex() + 1;
            save();
            midFive.backHome();
        } else
        if(c == cmdCancel)
            midFive.backHome();
    }

    private void load()
    {
        try
        {
            RecordStore rs = RecordStore.openRecordStore("Options", false);
            if(rs.getNumRecords() > 0)
            {
                byte bs[] = rs.getRecord(1);
                if(bs.length >= 3)
                {
                    borderSize = bs[0];
                    if(borderSize < 9)
                        borderSize = 9;
                    if(borderSize > 19)
                        borderSize = 19;
                    computerFirst = bs[1] == 1;
                    degree = bs[2];
                    if(degree < 1)
                        degree = 1;
                    if(degree > 3)
                        degree = 3;
                }
            }
            rs.closeRecordStore();
        }
        catch(RecordStoreException _ex) { }
    }

    private void save()
    {
        try
        {
            RecordStore rs = RecordStore.openRecordStore("Options", true);
            byte bs[] = new byte[3];
            bs[0] = (byte)borderSize;
            bs[1] = (byte)(computerFirst ? 1 : 0);
            bs[2] = (byte)degree;
            if(rs.getNumRecords() > 0)
                rs.setRecord(1, bs, 0, 3);
            else
                rs.addRecord(bs, 0, 3);
            rs.closeRecordStore();
        }
        catch(RecordStoreException _ex) { }
    }


}