一款j2me编写的坦克对战小游戏

import java.io.IOException; import javax.microedition.lcdui.*; import javax.microedition.lcdui.game.*; public class TankCanvas extends GameCanvas implements Runnable,CommandListener { public static boolean mTrucking; public static TankSprite mTank; public static ETankSprite eTank ; public static TiledLayer mBoard; public Image AA; public static int num =1; public static int ll =5; public static int fx; public static int sd; public static boolean gameover=false; public static LayerManager mLayerManager; public static int w; public static int h; private TankMIDlet midlet; private Command command ; private Command exitCommand = new Command("退出", Command.EXIT, 0); public TankCanvas(TankMIDlet midlet) throws IOException { super(true); this.midlet=midlet; AA=Image.createImage("/AA.png"); addCommand(exitCommand); setCommandListener(this); mBoard = createBoard(); mLayerManager = new LayerManager(); createTank(); createETank(); mLayerManager.append(mBoard); splash(); } public static void createTank() { try{ Image image = Image.createImage("/tank.png"); mTank= new TankSprite(image, 14, 14); mLayerManager.append(mTank); mLayerManager.append(mTank.bullets); mTank.setPosition(100, 52); fx=3; sd=-4; }catch(IOException ioe){ }catch(Exception e){ } } public static void createETank() { try{ Image images = Image.createImage("/enemyTank.png"); eTank= new ETankSprite(images, 14, 14); mLayerManager.append(eTank); mLayerManager.append(eTank.ebullets); eTank.setPosition(10, 110); eTank.start(); }catch(IOException ioe){ }catch(Exception e){ } } private TiledLayer createBoard() throws IOException { Image image = Image.createImage("/bg.png"); TiledLayer tiledLayer = new TiledLayer(11, 11, image, 15, 15); int[] map = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 4, 4, 4, 4, 4, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 4, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }; for (int i = 0; i < map.length; i++) { int column = i % 11; int row = (i - column) / 11; tiledLayer.setCell(column, row, map[i]); } return tiledLayer; } public void start() { Thread t = new Thread(this); t.start(); } public void run() { Graphics g = getGraphics(); while (mTrucking) { long times_s= System.currentTimeMillis(); input(); tick(); render(g); //得到系统当前时间,并将时间换算成毫秒 long times_e=System.currentTimeMillis(); long times=times_e-times_s; if( times >70 ){ times =70; } try{ Thread.sleep(70- times ); }catch(InterruptedException ie){ ie.printStackTrace(); } } } private void tick() { if (mTank.collidesWith(mBoard, true)) {mTank.undo();} if (eTank.collidesWith(mBoard, true)) { eTank.undo();} if (eTank.collidesWith(mTank, true)) { eTank.setVisible(false); mTank.setVisible(false); mTank.setVisible(false); mLayerManager.remove(TankCanvas.mTank); eTank.setVisible(false); mLayerManager.remove(TankCanvas.eTank); eTank.elift=false; createTank(); createETank(); } } private void input() { int keyStates = getKeyStates(); if ((keyStates & LEFT_PRESSED) != 0) {mTank.forward(-3,1); fx=1; sd=-10; if ((keyStates & FIRE_PRESSED) != 0) { mTank.bullets.start(mTank.getX(), mTank.getY(),fx,sd,1); }} else if ((keyStates & RIGHT_PRESSED) != 0) {mTank.forward(3,2); fx=2; sd=10; if ((keyStates & FIRE_PRESSED) != 0) { mTank.bullets.start(mTank.getX(), mTank.getY(),fx,sd,1); }} else if ((keyStates & UP_PRESSED) != 0) {mTank.forward(-3,3); fx=3; sd=-10; if ((keyStates & FIRE_PRESSED) != 0) { mTank.bullets.start(mTank.getX(), mTank.getY(),fx,sd,1); }} else if ((keyStates & DOWN_PRESSED) != 0) {mTank.forward(3,4); fx=4; sd=10; if ((keyStates & FIRE_PRESSED) != 0) { mTank.bullets.start(mTank.getX(), mTank.getY(),fx,sd,1); } } else if ((keyStates & FIRE_PRESSED) != 0) { mTank.bullets.start(mTank.getX(), mTank.getY(),fx,sd,1); } } private void render(Graphics g) { w = getWidth(); h = getHeight(); g.setColor(0,0,0); g.fillRect(0, 0, w, h); g.setColor(255,255,255); g.drawString("我方",80,0,g.LEFT|g.TOP); g.drawString(String.valueOf(num),110,0,g.LEFT|g.TOP); g.drawString("敌方",120,0,g.LEFT|g.TOP); g.drawString(String.valueOf(ll),150,0,g.LEFT|g.TOP); mLayerManager.paint(g, 1, 1); flushGraphics(); if (gameover) { mTrucking=false; w = getWidth(); h = getHeight(); g.setColor(0,0,0); g.fillRect(0, 0, w, h); g.setColor(255,0,255); g.setFont(Font.getFont(Font.FACE_SYSTEM,Font.STYLE_BOLD,Font.SIZE_LARGE)); g.drawImage(AA, getWidth()/2, getHeight()/2, Graphics.VCENTER|Graphics.HCENTER); g.drawString("再来一局",w/2-10,h/2+40,g.LEFT|g.TOP); g.drawString("你太菜了",w/2-75,h/2,g.LEFT|g.TOP); g.drawString("GAME OVER",getWidth()/2-60,getHeight()/2+20,g.LEFT|g.TOP); flushGraphics(); } // 如果敌机数为0,则表示敌机已全部被歼灭,玩爱获得最终胜利 if(ll==0){ mTrucking=false; g.setColor(0,0,0); g.fillRect(0,0,getWidth(),getHeight()); g.setColor(255,0,255); g.setFont(Font.getFont(Font.FACE_SYSTEM,Font.STYLE_BOLD,Font.SIZE_LARGE)); g.drawImage(AA, getWidth()/2, getHeight()/2, Graphics.VCENTER|Graphics.HCENTER); g.drawString("敌机已全部歼灭",40,getHeight()/2,g.LEFT|g.TOP); ; flushGraphics(); } } public void splash() { Image tanklogo = null; try { tanklogo = Image.createImage("/tanklogo.png"); } catch (IOException e) { } Graphics g = getGraphics(); g.setColor(0); g.fillRect(0, 0, getWidth(), getHeight()); g.drawImage(tanklogo, 0, 0, 0); g.setColor(255,255,255); g.setFont(Font.getFont(Font.FACE_SYSTEM,Font.STYLE_BOLD,Font.SIZE_LARGE)); g.drawString("歼灭之战", 60, 60, 0); g.drawString("07游戏", 60, 80, 0); repaint(); command = new Command(mTrucking == false ? "开始" : "重新开始", Command.OK, 1); addCommand(command); } public void commandAction(Command c, Displayable s) { if (c.getCommandType() == Command.EXIT) { if(mTrucking){ // 游戏暂停 mTrucking=false; } else midlet.notifyDestroyed(); //单击开始按钮,控制游戏的开始实 }else if (c.getCommandType() == Command.OK) { ll =5; num =1; start(); gameover=false; mTrucking=true; } } public void stop() { // mTrucking = false; } }