飞机游戏源代码简单AI

package aibullet; import javax.microedition.lcdui.*; import javax.microedition.lcdui.game.*; import java.io.IOException; public class MyCanvas extends GameCanvas implements Runnable ,CommandListener { boolean running; boolean isHit; int win_width=getWidth(); int win_height=getHeight(); //飞机的一些属性 Image plane_img; Plane plane_sp; int img_plane_size=24; //爆炸的动画 Image bomb_img; Sprite bomb_sp; int img_bomb_size=65; //子弹的属性 Image bullet_img; int bullet_size=6; AI_Bullet b; //背景 Image cloud_img; Image back_img; //引用MID类的一些方法 MyMIDlet fMIDlet; Graphics g; public MyCanvas(MyMIDlet fMIDlet) { super(true); this.fMIDlet=fMIDlet; g=getGraphics(); Command cmdExit=new Command("退出",Command.EXIT,0); addCommand(cmdExit); setCommandListener(this); try { plane_img=Image.createImage("/plane.png"); bomb_img=Image.createImage("/bomb.png"); cloud_img=Image.createImage("/cloud.png"); back_img=Image.createImage("/cloudbackground.png"); bullet_img=Image.createImage("/bullet.png"); } catch(IOException e) { System.out.print(e.getMessage()); } //爆炸 bomb_sp=new Sprite(bomb_img,img_bomb_size,img_bomb_size); bomb_sp.setFrame(0) ; //生成子弹对象 b=new AI_Bullet(bullet_img,bullet_size,bullet_size) ; // b.setPosition(50,50); // b.setFrame(0); //生成飞机对象 plane_sp = new Plane(plane_img, img_plane_size, img_plane_size); plane_sp.setFrame(0); //飞机初始位置 int x = (win_width - img_plane_size) / 2; int y = (win_height - img_plane_size) / 2; plane_sp.setPosition(x, y); b.setBulletPos(10,10); start(); } public void start() { running=true; Thread t=new Thread(this); t.start(); } public void commandAction(Command command, Displayable displayable) { if(command.getCommandType()==Command.EXIT ) fMIDlet.quitApp(); } public void run() { long st=0,et=0,diff=0; int rate=50;//刷新频率 while(running) { st=System.currentTimeMillis(); GameKeyInput(); render(); et=System.currentTimeMillis(); diff=st-et; if(diff<rate) { try { Thread.sleep(rate-diff); } catch(InterruptedException ex) { stop(); } } } } public void GameKeyInput() { plane_sp.setFrame(0); int KeyState=getKeyStates(); if((KeyState & UP_PRESSED)!=0) { if(plane_sp.getY()-3<0) plane_sp.move(0,-plane_sp.getY()); else plane_sp.move(0,-5); plane_sp.setFrame(0); } if((KeyState & DOWN_PRESSED)!=0) { if(plane_sp.getY()+3+plane_sp.getHeight() >win_height) plane_sp.move(0,win_height-plane_sp.getY()-plane_sp.getHeight()); else plane_sp.move(0,5); plane_sp.setFrame(0); } if((KeyState & LEFT_PRESSED )!=0) { if(plane_sp.getX()-3<0) plane_sp.move(-plane_sp.getX(),0); else plane_sp.move(-5,0); plane_sp.setFrame(1); } if((KeyState & RIGHT_PRESSED)!=0) { if(plane_sp.getX()+img_plane_size+3>win_width) plane_sp.move(win_width-plane_sp.getX()-img_plane_size,0); else plane_sp.move(5,0); plane_sp.setFrame(2); } if((KeyState&FIRE_PRESSED)!=0) { b.setBulletAlive(true); } } private void render() { g.setColor(0xffffff); g.fillRect(0,0,win_width,win_height); g.drawImage(back_img,0,0,0); g.drawImage(cloud_img,20,20,0); g.drawImage(cloud_img,90,50,0); // g.drawImage(cloud_img,30,120,0); // g.drawImage(cloud_img,120,110,0); isHit=b.collidesWith(plane_sp,true); if(isHit) { bomb_sp.setPosition(plane_sp.getX()-(img_bomb_size-img_plane_size)/2,plane_sp.getY()-(img_bomb_size-img_plane_size)/2); bomb_sp.nextFrame(); bomb_sp.paint(g); } else { b.AutoSearchTrg(plane_sp); b.paint(g); plane_sp.paint(g); } flushGraphics(); } public void stop() { running=false; } }