手机J2ME游戏创作（一）主界面

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package MainUI;

import Handler.Components;
import Handler.GameRecord;
import Handler.Handler;
import Handler.Info;
import Level.*;
import java.io.IOException;
import java.util.Vector;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.TextBox;
import javax.microedition.lcdui.TextField;
import javax.microedition.lcdui.game.GameCanvas;

/**
*
* @author Administrator
*/
public class MainUI extends GameCanvas implements Runnable,CommandListener{
    //程序控制器
    public static MainUI instance;           //主界面句柄
    private Graphics g;                      //画布
    private Level1 level1=null;              //相关关卡
    private Level2 level2=null;
    private Level3 level3=null;
    private Level4 level4=null;
    private Level5 level5=null;
    //主界面程序状态控制参数设置
    public static boolean pause=false;      //主界面是否转到其他关卡界面
    public int delay=300;                   //显示延时
    private int line=0;                     //游戏显示
    private int menuSelect=0;               //菜单选项
    private int setSelect=0;                //设置选项
    public int state=-1;                     //程序状态记录
    public final static int SPLASH=-1;
    public final static int PLOT=0;
    public final static int SELECT=1;
    public final static int PROCESS=2;
    public final static int HELP=3;
    public final static int ABOUT=4;
    public final static int SET=5;
    public final static int EXIT=6;
    public final static int PASS=7;
    public final static int FAIL=8;
    public final static int AGAIN=9;
    public final static int ENTER=10;
    //设备参数
    public static int height;
    public static int width;
    private GameRecord game=new GameRecord();
    private Vector v;
    private Info in=new Info();
    private TextBox f=new TextBox("请输入玩家姓名：",null,256,TextField.ANY);
    private Command c=new Command("确认",Command.OK,1);
    private int ind=0;
    //图片资源
    private Image bg=null;
    private Image logo=null;
    private Image menu=null;
    private Image mainMenu=null;
    private int frameGif=0;
    private boolean next=false;
    //文字说明
    private String[]Menu={"继续旅程", "设置","帮助","关于","退出"};
    private String help="     游戏帮助\n  " +
     "  1、按键操作\n"+
    "2键或向上键表示向上\n"+
    "8键或向下键表示向下\n"+
    "4键或向左键表示向左\n"+
    "6键或向右键表示向右\n"+
    "5键或OK键表示确认\n"+
    "返回键或右软件键表示返回到主界面\n"+
     "   2、游戏关卡\n"+
     "一共有五个关卡，需要在规定时间内闯关\n"+
     "   祝你有一个愉快的旅程！";
    private String about="      游戏声明\n"+
                         "程序编写: David Tseng\n"+
                         "美工: DouDou&&David Tseng\n"+
                         "游戏名称：浪漫鼠之旅\n"+
                         "游戏音乐：DouDou\n"+
                         "游戏剧情：DouDou\n"+
                         "联系电话：你是我的XX\n"+
                         "服务商：DouDou&&David\n"+
                         "创作时间：2008年4月\n";
    private String[]plot={"很多年以前。。。。。。多年以前。。。。。。年以前。。。。。。以前。。。。。。前。。。。。。",
    "为了争夺河蟹大陆的统治权，猫小咪和浪漫鼠两个种群进行着旷日持久的战斗。",
    "经过几场异常惨烈的战役，猫咪国和可爱鼠国双方元气大伤，在德高望重的DeiDei狗和DouDou马的调停下，两国化干戈于鱼片和奶酪，共同和平的生活着。",
    "浪漫鼠霄霄和筱筱，自由自在地生活在无忧草原上，朝九晚五采集食物，睡睡吃吃，吃吃睡睡。。。。。。过着神仙鼠般的生活。。。。。。",
    "可是。。。。。\n种子早已深埋，阴霾的天空再次笼盖。。。。。。",
    "邪恶的猫小咪豆豆一心想要挑起战争，取得河蟹大陆统治权，它趁着霄霄睡懒觉绑架了筱筱，并留下字条:！@#￥%…&*（）。。。。。",
    "故事就这样开始了。。。。。。"};
    public MainUI()
    {
        super(false);
        setFullScreenMode(true);
        g=getGraphics();
        initial();
        (new Thread(this)).start();
    }
    private void initial(){
        Handler.instance=new Handler();
        Components.instance=new Components();
        height=getHeight();
        width=getWidth();
        f.addCommand(c);
        f.setCommandListener(MainUI.instance);
        try{
            bg=Image.createImage("/Resource/Picture/Main/bg.png");
            logo=Image.createImage("/Resource/Picture/Main/logo.png");
            menu=Image.createImage("/Resource/Picture/Main/menu.png");
            mainMenu=Image.createImage("/Resource/Picture/Main/mainMenu.png");
        }catch(IOException e){}
        v=game.readRecord();
        state=SPLASH;
    }
     private void drawPlot(){
     next=false;
     while(line<plot.length){  
        Components.instance.drawText(plot[line],Font.getDefaultFont(),Handler.board,(MainUI.width-Handler.board.getWidth())/2,(MainUI.height-Handler.board.getHeight())/2, g,null);
        for(int i=0;i<20&&!next;i++){
        try{
            Thread.sleep(100);
        }catch(InterruptedException e){}
        flushGraphics();
        }
        line++;
        next=false;
     }
     state=SELECT;
}
    private void drawSplash(){
        g.setColor(0xffff);
        g.fillRect(0,0,width,height);
        g.drawImage(logo,width/2,Handler.move,g.HCENTER|g.TOP);
        Handler.move+=5;
        try{
            Thread.sleep(100);
        }catch(InterruptedException e){}
        if(Handler.move>(height-bg.getHeight())/2){
            state=1;Handler.move=0;
            try{
                Thread.sleep(500);
            }catch(InterruptedException e){}
            state=SELECT;
        }
    }
    private void drawMenu(){
        g.setClip(0,0,width,height);
        g.setColor(0xffff);
        g.fillRect(0,0,width,height);
        g.drawImage(bg,width/2,height/2,g.HCENTER|g.VCENTER);
        g.setColor(0xffff);
        g.drawString(Menu[menuSelect],width/2,height/2+20,g.HCENTER|g.TOP);
    }
    private void drawHelp(){
        Components.instance.drawText(help,Font.getDefaultFont(),Handler.board,(width-Handler.board.getWidth())/2,(height-Handler.board.getHeight())/2, g,null);
    }
    private void drawAbout(){
        Components.instance.drawText(about,Font.getDefaultFont(),Handler.board,(width-Handler.board.getWidth())/2,(height-Handler.board.getHeight())/2, g,null);
    }
    private void drawEnter(){
        g.setColor(0xffff);
        g.fillRect(0,0,getWidth(),getHeight());
        g.drawImage(bg,getWidth()/2,getHeight()/2,g.HCENTER|g.VCENTER);
        if(v==null){
            g.setColor(0xffff);
            g.drawString("请输入玩家名字：",getWidth()/2,getHeight()/3,g.HCENTER|g.TOP);
            g.setColor(0xffff);
            g.drawRect(getWidth()/2-40,getHeight()/3+20,80,20);
        }
        else {
         for(int i=0;i<v.size();i++){
            Info in=(Info)v.elementAt(i);
            g.setColor(0xffff);
            g.drawString(in.Player,0,i*20,g.TOP|g.LEFT);
         }
         g.setColor(0xffff);
         g.drawString("设置新玩家: ",getWidth()/2,v.size()*20,g.HCENTER|g.TOP);
         g.setColor(0xffff);
         g.drawRect(getWidth()/2-40,(v.size()+1)*20,80,20);
        }
    }
    private void drawSet(){
        g.setColor(0xffff);
        g.fillRect(0,0,width,height);
        g.setColor(0xff00ff);
        g.fillRect(0,setSelect*30,width,30);       
        g.setColor(0xff0000);
        g.drawString("声音",0,0,g.TOP|g.LEFT);
        g.setColor(0xff0000);
        if(Handler.SoundEnable)
            g.drawString("开",width,0,g.TOP|g.RIGHT);
        else g.drawString("关",width,0,g.TOP|g.RIGHT);
        g.drawString("音量",0,30,g.TOP|g.LEFT);
        g.drawString(""+Handler.sound,width,30,g.TOP|g.RIGHT);
        g.setColor(0xff0000);           
    }
    private void Level(){
        System.out.println("进入关卡！");
        switch(Handler.Level){
            case 1:
                if(level1==null)level1=new Level1();
                else{level1.end=false;pause=true;Display.getDisplay(Midlet.instance).setCurrent(level1);new Thread(level1).start();}
                break;
            case 2:
                if(level2==null)level2=new Level2();
                else{level2.end=false;pause=true;Display.getDisplay(Midlet.instance).setCurrent(level2);new Thread(level2).start();}
                break;
            case 3:
                if(level3==null)level3=new Level3();
                else{level3.end=false;pause=true;Display.getDisplay(Midlet.instance).setCurrent(level3);new Thread(level3).start();}
                break;
            case 4:
                if(level4==null)level4=new Level4();
                else{level4.end=false;pause=true;Display.getDisplay(Midlet.instance).setCurrent(level4);new Thread(level4).start();}
                break;
            case 5:
                if(level5==null)level5=new Level5();
                else{level5.end=false;pause=true;Display.getDisplay(Midlet.instance).setCurrent(level5);new Thread(level5).start();}               
                break;
        }
    }
   
    private void Pass(){
        Clear();
        Handler.Level++;
        if(Handler.Level>5)Handler.Level=1;
        if(Handler.Level==4)Handler.Level=5;
        state=PROCESS;       
    }
    private void Exit(){
        Clear();
        Midlet.instance.notifyDestroyed();
        Midlet.instance.destroyApp(true);
    }
    public void Clear(){
        switch(Handler.Level){
            case 1:
                if(level1!=null){level1.end=true;level1=null;System.gc();}
                break;
            case 2:
                if(level2!=null){level2.end=true;level2=null;System.gc();}
                break;
            case 3:
                if(level3!=null){level3.end=true;level3=null;System.gc();}
                break;
            case 4:
                if(level4!=null){level4.end=true;level4=null;System.gc();}
                break;
            case 5:
                if(level5!=null){level5.end=true;level5=null;System.gc();}
                break;
        }        
    }
    public void keyRepeated(int keyCode){
        keyPressed(keyCode);
    }
    public void keyPressed(int keyCode){
        switch(state){
            case ENTER:
                if(v==null&&(keyCode==KEY_NUM5||keyCode==-5)){
                    pause=true;
                    Display.getDisplay(Midlet.instance).setCurrent(f);
                    return ;
                }
                else{}
                break;
            case PLOT:
                next=true;
                break;
            case SELECT:
                switch(keyCode){
                    case KEY_NUM5:
                    case -5:
                        if(Handler.NewGame){
                            state=ENTER;
                            Handler.NewGame=false;
                            return;
                        }
                        switch(menuSelect){
                            case 0:
                                state=PROCESS;
                                break;
                            case 1:
                                state=SET;
                                break;
                            case 2:
                                state=HELP;
                                break;
                            case 3:
                                state=ABOUT;
                                break;
                            case 4:
                                state=EXIT;
                                break;
                        }
                        break;
                    case KEY_NUM2:
                    case -1:
                        menuSelect--;
                        if(menuSelect<0)menuSelect=4;
                        break;
                    case KEY_NUM8:
                    case -2:
                        menuSelect++;
                        if(menuSelect>4)menuSelect=0;
                        break;
                    case KEY_NUM4:
                    case -3:
                        break;
                    case KEY_NUM6:
                    case -4:
                        break;
                }
                break;
            case HELP:
                if(keyCode==-11||keyCode==-10){state=SELECT;Handler.move=0;}
                else if(keyCode==-1||keyCode==KEY_NUM2){Handler.move--;}
                else if(keyCode==-2||keyCode==KEY_NUM8){Handler.move++;}
                break;
            case ABOUT:               
                if(keyCode==-11||keyCode==-10){state=SELECT;Handler.move=0;}
                else if(keyCode==-1||keyCode==KEY_NUM2){Handler.move--;}
                else if(keyCode==-2||keyCode==KEY_NUM8){Handler.move++;}               
                break;
            case SET:
                switch(keyCode){
                    case -10:
                    case -11:
                        state=SELECT;
                        break;
                    case -5:
                    case KEY_NUM5:
                        if(setSelect==0){
                            Handler.SoundEnable=!Handler.SoundEnable;
                            if(Handler.SoundEnable)Handler.instance.playSound();
                            else Handler.instance.pauseSound();
                        }
                        break;
                    case -1:
                    case KEY_NUM2:
                        setSelect--;
                        if(setSelect<0)setSelect=1;
                        break;
                    case -2:
                    case KEY_NUM8:
                        setSelect++;
                        if(setSelect>1)setSelect=0;
                        break;
                    case -3:
                    case KEY_NUM4:
                        if(setSelect==1){
                            Handler.sound-=5;
                            if(Handler.sound<0)Handler.sound=0;
                            Handler.instance.setVolume();
                        }
                        break;
                    case -4:
                    case KEY_NUM6:
                        if(setSelect==1){
                            Handler.sound+=5;
                            if(Handler.sound>100)Handler.sound=100;
                            Handler.instance.setVolume();
                        }
                }
                break;
            case FAIL:
                Clear();
                state=SELECT;
                break;
            case PASS:
                Pass();
                break;
        }
    }
    public void run() {
        Handler.instance.playAudio("/Resource/Music/Main/bg.mid");
        while(!pause){
            switch(state){
                case SPLASH:
                    drawSplash();
                    break;
                case PLOT:
                    drawPlot();
                    break;
                case SELECT:
                    drawMenu();
                    break;
                case PROCESS:
                    Level();
                    break;
                case HELP:
                    drawHelp();
                    break;
                case ABOUT:
                    drawAbout();
                    break;
                case SET:
                    drawSet();
                    break;
                case EXIT:
                    Exit();
                    break;
                case PASS:
                    Pass();
                    break;
                case FAIL:
                    Clear();
                    state=SELECT;
                    break;
                case AGAIN:
                    Clear();
                    state=PROCESS;
                    break;
                case ENTER:
                    drawEnter();
                    break;
            }
            if(state!=PLOT){
            try{
                Thread.sleep(150);
            }catch(InterruptedException e){}
            flushGraphics();
            }
        }
    }

    public void commandAction(Command c, Displayable s) {
        if(c==instance.c){
            in.Player=f.getString();
        }
        f=null;
            state=SELECT;
            pause=false;
            new Thread(MainUI.instance).start();
            Display.getDisplay(Midlet.instance).setCurrent(MainUI.instance);        
    }

}