这个是主文件（后面的是执行的操作文件）：
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class LostInForest extends MIDlet implements CommandListener{
private Display display;
private Canvas canvas;
private Command exitCmd;
MenuScreen menuScreen = new MenuScreen();
MyGameCanvas gameCanvas = new MyGameCanvas();
private Command exitGame;
Alert aAlert = new Alert("Game Method","Login the game,point up,down,left,right contron",null,AlertType.INFO);
Alert bAlert = new Alert("Maker","our",null,AlertType.INFO);
public LostInForest(){
exitCmd = new Command("exit",Command.EXIT,2);
exitGame = new Command("Exit Game",Command.EXIT,1);
aAlert.setTimeout(10000);
bAlert.setTimeout(10000);
aAlert.addCommand(exitCmd);
bAlert.addCommand(exitCmd);
gameCanvas.addCommand(exitGame);
gameCanvas.setCommandListener(this);
aAlert.setCommandListener(this);
bAlert.setCommandListener(this);
}
public void startApp() throws MIDletStateChangeException{
canvas = new MenuScreen();
display = Display.getDisplay(this);
display.setCurrent(canvas);
}
public void pauseApp(){}
public void destroyApp(boolean b){}
public void commandAction(Command cmd,Displayable dis){
if(cmd == exitCmd){
display.setCurrent(menuScreen);
}
else if(cmd == exitGame){
System.gc();
destroyApp(false);
notifyDestroyed();
}
}
class MenuScreen extends Canvas implements Runnable{
final Font lowFont = Font.getFont(Font.FACE_MONOSPACE,Font.STYLE_PLAIN,Font.SIZE_MEDIUM);
final Font highFont = Font.getFont(Font.FACE_MONOSPACE,Font.STYLE_BOLD,Font.SIZE_LARGE);
final int lowColor = 0x000000AA;
final int highColor = 0x00FF0000;
final int highBGColor = 0x00AAAAAA;
int width;
int height;
int startHeight;
int menuHeight;
final int spacing = highFont.getHeight()/2;
final String[] mainMenu = {"Start Game","Game Method","Worker","Exit"};
int menuIdx;
Thread menuThread;
public MenuScreen(){
width = getWidth();
height = getHeight();
menuHeight = (highFont.getHeight() * mainMenu.length)+((mainMenu.length-1)*spacing);
startHeight = (height - menuHeight)/2+4;
menuIdx = 0;
menuThread = new Thread(this);
menuThread.start();
}
public void run(){
while(true){
repaint();
}
}
public void paint(Graphics g){
g.setColor(0x00FFFF00);
g.fillRect(0,0,width,height);
g.setColor(00,00,00);
g.setFont(Font.getFont(Font.FACE_MONOSPACE,Font.STYLE_BOLD,Font.SIZE_LARGE));
Font label1 = Font.getFont(Font.FACE_MONOSPACE,Font.STYLE_BOLD,Font.SIZE_LARGE);
g.drawString("LostInForest",62,label1.getHeight()/2,Graphics.TOP|Graphics.LEFT);
g.setColor(00,00,00);
g.setFont(Font.getFont(Font.FACE_MONOSPACE,Font.STYLE_BOLD,Font.SIZE_LARGE));
g.drawString("LostInForest",0,24,Graphics.TOP|Graphics.LEFT);
g.setColor(00,00,00);
g.setFont(Font.getFont(Font.FACE_MONOSPACE,Font.STYLE_BOLD,Font.SIZE_LARGE));
g.drawString("Copyright@2007 SZPT",25,145,Graphics.LEFT|Graphics.TOP);
g.setColor(00,00,00);
g.setFont(Font.getFont(Font.FACE_MONOSPACE,Font.STYLE_BOLD,Font.SIZE_LARGE));
g.drawString("All Rights Reserved.",30,160,Graphics.LEFT|Graphics.TOP);
for(int i = 0;i<mainMenu.length;i++){
if(i == menuIdx){
g.setColor(highBGColor);
g.fillRect(0,startHeight + (i*highFont.getHeight())+spacing,width,highFont.getHeight());
g.setFont(highFont);
g.setColor(highColor);
g.drawString(mainMenu[i],(width - highFont.stringWidth(mainMenu[i]))/2,startHeight+(i*highFont.getHeight())+spacing,20);
}
else{
g.setFont(lowFont);
g.setColor(lowColor);
g.drawString(mainMenu[i],(width - highFont.stringWidth(mainMenu[i]))/2,startHeight+(i*highFont.getHeight())+spacing,20);
}
}
}
protected void keyPressed(int code){
if(getGameAction(code) == Canvas.UP&&menuIdx - 1 >= 0){
menuIdx--;
}
else if(getGameAction(code) == Canvas.DOWN&&menuIdx + 1 < mainMenu.length){
menuIdx ++;
}
if(getGameAction(code) == Canvas.FIRE){
if(mainMenu[menuIdx] == "Start Game"){
gameCanvas.start();
display.setCurrent(gameCanvas);
}
else if(mainMenu[menuIdx] == "Game Method"){
display.setCurrent(aAlert);
}
else if(mainMenu[menuIdx] == "Maker"){
display.setCurrent(bAlert);
}
else if(mainMenu[menuIdx] == "Exit"){
notifyDestroyed();
}
}
}
}
}
这个是主操作文件：
import javax.microedition.lcdui.*;
import javax.microedition.lcdui.game.*;
import javax.microedition.rms.*;
public class MyGameCanvas extends GameCanvas implements Runnable{
private boolean isPlay;
private long delay;
private int currentX,currentY;
private int width;
private int height;
Graphics g;
public Display display;
Image image = null;
Image tileImages = null;
private Sprite spriteRole;
private static int INDEX_OF_UP = 0;
private static int INDEX_OF_DOWN = 1;
private static int INDEX_OF_LEFT = 3;
private static int INDEX_OF_RIGHT = 2;
private TiledLayer tiledBackground;
private TiledLayer tiledLayer = null;
private LayerManager layerManager;
private RecordStore rs = null;
private int gameLifeValueInt = 3;
private String gameLifeValueString = null;
private int firstGate = 0;
private int[] map = {
};
public MyGameCanvas(){
super(true);
width = getWidth() - 20;
height = getHeight() - 17;
currentX = 160;
currentY = 160;
delay = 20;
g = getGraphics();
try{
image = Image.createImage("/player.png");
spriteRole = new Sprite(image,16,16);
tileImages = Image.createImage("/tiles.png");
tiledLayer = new TiledLayer(12,12,tileImages,16,16);
tiledBackground = initBackground();
layerManager = new LayerManager();
layerManager.append(tiledBackground);
layerManager.append(spriteRole);
IntToString();
createNewDB();
setRecordToDB(1,gameLifeValueString,0,1);
}
catch(Exception e){
e.printStackTrace();
}
}
public void start(){
isPlay = true;
Thread t = new Thread(this);
t.start();
}
public void stop(){
isPlay = false;
}
public void run(){
while(isPlay){
input();
drawScreen(g);
try{
Thread.sleep(delay);
}
catch(InterruptedException ie){}
}
}
private void IntToString(){
gameLifeValueString = gameLifeValueInt + "";
}
private void createNewDB(){
try{
rs = RecordStore.openRecordStore("GameDB",true);
}
catch(RecordStoreNotFoundException rsnfe){}
catch(RecordStoreFullException rsfe){}
catch(RecordStoreException rse){}
}
private void addRecordToDB(String str){
byte rec[] = str.getBytes();
try{
rs.addRecord(rec,0,rec.length);
}
catch(RecordStoreFullException rse){}
catch(RecordStoreException rse){}
}
private String getRecordFromDB(){
byte data[] = new byte[5];
int dataLength = 0;
try{
dataLength = rs.getRecord(1,data,0);
}
catch(RecordStoreException rse){}
return new String(data,0,dataLength);
}
private void setRecordToDB(int recordID,String str,int offset,int len){
try{
byte data[] = str.getBytes();
rs.setRecord(recordID,data,offset,len);
}
catch(RecordStoreException rse){}
}
private void input(){
int keyStates = getKeyStates();
try{
if((keyStates&LEFT_PRESSED)!=0&&gameLifeValueInt > 0){
int tempX = Math.max(0,currentX - 16);
int tempPoint = tempX/16+currentY*12/16;
if(map[tempPoint]==1){
currentX = tempX;
}
else if(map[tempPoint]==5){
currentX = tempX;
map[tempPoint] = 1;
try{
String temp = getRecordFromDB();
gameLifeValueInt = Integer.parseInt(temp);
gameLifeValueInt--;
IntToString();
setRecordToDB(1,gameLifeValueString,0,1);
tiledBackground = initBackground();
}
catch(Exception e){}
}
else if(map[tempPoint]==6){
currentX = tempX;
map[tempPoint] = 1;
try{
String temp = getRecordFromDB();
gameLifeValueInt = Integer.parseInt(temp);
gameLifeValueInt++;
IntToString();
setRecordToDB(1,gameLifeValueString,0,1);
tiledBackground = initBackground();
}
catch(Exception e){}
}
spriteRole.setFrame(INDEX_OF_LEFT);
}
else if((keyStates&RIGHT_PRESSED)!=0&&gameLifeValueInt>0){
int tempX = Math.min(width,currentX + 16);
int tempPoint = tempX/16+currentY*12/16;
if(map[tempPoint]==1){
currentX = tempX;
}
else if(map[tempPoint]==5){
currentX = tempX;
map[tempPoint] = 1;
try{
String temp = getRecordFromDB();
gameLifeValueInt = Integer.parseInt(temp);
gameLifeValueInt--;
IntToString();
setRecordToDB(1,gameLifeValueString,0,1);
tiledBackground = initBackground();
}
catch(Exception e){}
}
else if(map[tempPoint]==6){
currentX = tempX;
map[tempPoint] = 1;
try{
String temp = getRecordFromDB();
gameLifeValueInt = Integer.parseInt(temp);
gameLifeValueInt++;
IntToString();
setRecordToDB(1,gameLifeValueString,0,1);
tiledBackground = initBackground();
}
catch(Exception e){}
}
spriteRole.setFrame(INDEX_OF_RIGHT);
}
else if((keyStates&UP_PRESSED)!=0&&gameLifeValueInt > 0){
int tempY = Math.max(0,currentY - 16);
int tempPoint = currentX/16+tempY*12/16;
if(map[tempPoint]==1){
currentY = tempY;
}
else if(map[tempPoint]==5){
currentY = tempY;
map[tempPoint] = 1;
try{
String temp = getRecordFromDB();
gameLifeValueInt = Integer.parseInt(temp);
gameLifeValueInt--;
IntToString();
setRecordToDB(1,gameLifeValueString,0,1);
tiledBackground = initBackground();
}
catch(Exception e){}
}
else if(map[tempPoint]==6){
currentY = tempY;
map[tempPoint] = 1;
try{
String temp = getRecordFromDB();
gameLifeValueInt = Integer.parseInt(temp);
gameLifeValueInt++;
IntToString();
setRecordToDB(1,gameLifeValueString,0,1);
tiledBackground = initBackground();
}
catch(Exception e){}
}
else if(map[tempPoint]==2){
currentY = tempY;
try{
firstGate = 100;
tiledBackground = initBackground();
}
catch(Exception e){}
}
spriteRole.setFrame(INDEX_OF_UP);
}
else if((keyStates&DOWN_PRESSED)!=0&&gameLifeValueInt>0){
if(currentY + 10<height){
int tempY = Math.min(height,currentY + 16);
int tempPoint = currentX/16+tempY*12/16;
if(map[tempPoint]==1){
currentY = tempY;
}
else if(map[tempPoint]==5){
currentY = tempY;
map[tempPoint] = 1;
try{
String temp = getRecordFromDB();
gameLifeValueInt = Integer.parseInt(temp);
gameLifeValueInt--;
IntToString();
setRecordToDB(1,gameLifeValueString,0,1);
tiledBackground = initBackground();
}
catch(Exception e){}
}
else if(map[tempPoint]==6){
currentY = tempY;
map[tempPoint] = 1;
try{
String temp = getRecordFromDB();
gameLifeValueInt = Integer.parseInt(temp);
gameLifeValueInt++;
IntToString();
setRecordToDB(1,gameLifeValueString,0,1);
tiledBackground = initBackground();
}
catch(Exception e){}
}
spriteRole.setFrame(INDEX_OF_DOWN);
}
}
}
catch(ArrayIndexOutOfBoundsException e){}
}
public void drawScreen(Graphics g){
g.setColor(0x00FFFFFF);
g.fillRect(22,22,getWidth(),getHeight());
layerManager.append(tiledBackground);
layerManager.paint(g,0,0);
spriteRole.setPosition(currentX,currentY);
spriteRole.paint(g);
g.setColor(255,255,255);
g.setFont(Font.getFont(Font.FACE_SYSTEM,Font.STYLE_BOLD,Font.SIZE_MEDIUM));
g.drawString("Life:"+gameLifeValueInt,110,0,Graphics.RIGHT|Graphics.TOP);
if(gameLifeValueInt<=0){
g.setFont(Font.getFont(Font.FACE_SYSTEM,Font.STYLE_BOLD,Font.SIZE_LARGE));
g.drawString("In forest you ...",150,80,Graphics.RIGHT|Graphics.TOP);
g.setFont(Font.getFont(Font.FACE_SYSTEM,Font.STYLE_BOLD,Font.SIZE_SMALL));
g.drawString("PLEASE RESTART",170,100,Graphics.RIGHT|Graphics.TOP);
}
else if(gameLifeValueInt>=1&&firstGate == 100){
g.setFont(Font.getFont(Font.FACE_SYSTEM,Font.STYLE_BOLD,Font.SIZE_LARGE));
g.drawString("you do it",160,80,Graphics.RIGHT|Graphics.TOP);
g.setFont(Font.getFont(Font.FACE_SYSTEM,Font.STYLE_PLAIN,Font.SIZE_SMALL));
g.drawString("MISSION COMPLETE",170,100,Graphics.RIGHT|Graphics.TOP);
}
flushGraphics();
}
private TiledLayer initBackground() throws Exception{
for(int i = 0; i < map.length; i ++){
int column = i % 12;
int row = (i - column)/12;
tiledLayer.setCell(column,row,map[i]);
}
return tiledLayer;
}
}
至于地图，请大家自己看着程序自己随意构思一个好了。我没有在这里写入地图，呵呵！程序已经编译通过！