Java开发的小游戏 仿坦克大战

package com.game.java; import java.awt.Color; import java.awt.Graphics; import java.awt.Image; import java.awt.Rectangle; import java.awt.Toolkit; import java.awt.event.KeyEvent; import java.util.HashMap; import java.util.Map; import java.util.Random; public class Tank { //每次移动的像素 private static final int XSPEED=5; private static final int YSPEED=5; //坦克的宽 高； public static final int WIDTH=40; public static final int HEIGHT=40; //坦克出生的位置 private int x=50,y=50; //持有对方的引用 public TankClient tc; //区分好坏坦克 private boolean good; //装甲车的生命 private boolean live=true; //生命值 private int life=100; // 显示生命值的血块 private BloodBar bb=new BloodBar(); //行走的随机数 private static Random r=new Random(); // 计时器,间隔多少时间能开第二炮 long time=System.nanoTime(); private int step=r.nextInt(12)+3; private int oldX, oldY; private boolean bL=false, bU=false, bR=false, bD = false; //八个方向 已改成单独的类了 //enum Direction{L,LU,U,RU,R,RD,D,LD,STOP}; public Direction dir=Direction.STOP; //炮的方向 public Direction ptDir=Direction.U; private static Toolkit tk = Toolkit.getDefaultToolkit(); private static Image[] tankImages = null; //我的装甲车 private static Image[] bad_tankImages=null; //敌人的装甲车 private static Map<String, Image> imgs = new HashMap<String, Image>(); //存放我的装甲车的集合 private static Map<String, Image> bad_imgs = new HashMap<String, Image>(); //存放敌人的装甲车的集合 static { //我的装甲车 tankImages = new Image[] { tk.getImage(Tank.class.getClassLoader().getResource("images/tankL.gif")), tk.getImage(Tank.class.getClassLoader().getResource("images/tankU.gif")), tk.getImage(Tank.class.getClassLoader().getResource("images/tankR.gif")), tk.getImage(Tank.class.getClassLoader().getResource("images/tankD.gif")) }; //存放我的装甲车的集合 imgs.put("L", tankImages[0]); imgs.put("U", tankImages[1]); imgs.put("R", tankImages[2]); imgs.put("D", tankImages[3]); //敌人的装甲车 bad_tankImages = new Image[] { tk.getImage(Tank.class.getClassLoader().getResource("images/tank_l.gif")), tk.getImage(Tank.class.getClassLoader().getResource("images/tank_up.gif")), tk.getImage(Tank.class.getClassLoader().getResource("images/tank_r.gif")), tk.getImage(Tank.class.getClassLoader().getResource("images/tank_down.gif")) }; //存放敌人的装甲车的集合 bad_imgs.put("L", bad_tankImages[0]); bad_imgs.put("U", bad_tankImages[1]); bad_imgs.put("R", bad_tankImages[2]); bad_imgs.put("D", bad_tankImages[3]); } //构造方法 public Tank(int x, int y,boolean good) { this.x = x; this.y = y; this.oldX = x; this.oldY = y; this.good=good; } //重载构造方法 public Tank(int x,int y,boolean good,TankClient tc) { this(x,y,good); this.tc=tc; } // 重载构造方法 public Tank(int x,int y,boolean good,Direction dir, TankClient tc) { this(x,y,good,tc); this.dir=dir; } public void draw(Graphics g) { if(!this.live) { if(!good) tc.tank.remove(this); return;//没活着，就不画了 } if(good) //我的装甲车 { switch(ptDir) { case L: g.drawImage(imgs.get("L"), x, y, null); break; case U: g.drawImage(imgs.get("U"), x, y, null); break; case R: g.drawImage(imgs.get("R"), x, y, null); break; case D: g.drawImage(imgs.get("D"), x, y, null); break; } // 画生命血块 if(this.good) bb.draw(g); }else{ //敌人的装甲车 switch(ptDir) { case L: g.drawImage(bad_imgs.get("L"), x, y, null); break; case U: g.drawImage(bad_imgs.get("U"), x, y, null); break; case R: g.drawImage(bad_imgs.get("R"), x, y, null); break; case D: g.drawImage(bad_imgs.get("D"), x, y, null); break; } } move(); } // 移动多少像素 void move() { //记下装甲车移动前的坐标,如果撞到墙,好恢复这个坐标 this.oldX = x; this.oldY = y; switch(dir) { case L: x -= XSPEED; break; case U: y -= YSPEED; break; case R: x += XSPEED; break; case D: y += YSPEED; break; case STOP: break; } if(this.dir != Direction.STOP) { this.ptDir = this.dir; } if(x < 0) x = 0; if(y < 30) y = 30; if(x + Tank.WIDTH > TankClient.GAME_WIDTH) x = TankClient.GAME_WIDTH - Tank.WIDTH; if(y + Tank.HEIGHT > TankClient.GAME_HEIGHT) y = TankClient.GAME_HEIGHT - Tank.HEIGHT; if(!good) { Direction[] dirs = Direction.values(); if(step == 0) { step = r.nextInt(20) + 3; int rn = r.nextInt(dirs.length); dir = dirs[rn]; } step --; if(r.nextInt(40) > 38) this.fire_time(); } } public void keyPressed(KeyEvent e) { int key=e.getKeyCode(); switch(key) { case KeyEvent.VK_F2: if(!this.live&&this.good)//没活着,是Good { live=true; life=100; } break; //开火 case KeyEvent.VK_CONTROL: fire_time() ; break; case KeyEvent.VK_LEFT: bL=true;break; case KeyEvent.VK_UP: bU=true;break; case KeyEvent.VK_RIGHT:bR=true;break; case KeyEvent.VK_DOWN: bD=true;break; } locateDirection(); } void locateDirection() { if(bL && !bU && !bR && !bD) dir = Direction.L; // else if(bL && bU && !bR && !bD) dir = Direction.LU; else if(!bL && bU && !bR && !bD) dir = Direction.U; // else if(!bL && bU && bR && !bD) dir = Direction.RU; else if(!bL && !bU && bR && !bD) dir = Direction.R; // else if(!bL && !bU && bR && bD) dir = Direction.RD; else if(!bL && !bU && !bR && bD) dir = Direction.D; // else if(bL && !bU && !bR && bD) dir = Direction.LD; else if(!bL && !bU && !bR && !bD) dir = Direction.STOP; } public void keyReleased(KeyEvent e) { int key=e.getKeyCode(); switch(key) { case KeyEvent.VK_LEFT: bL=false;break; case KeyEvent.VK_UP: bU=false;break; case KeyEvent.VK_RIGHT:bR=false;break; case KeyEvent.VK_DOWN: bD=false;break; } locateDirection(); } public Missile fire() { if(!live) return null; int x=this.x+Tank.WIDTH/2-Missile.WIDTH/2; int y=this.y+Tank.HEIGHT/2-Missile.HEIGHT/2; Missile m=new Missile(x,y,good,ptDir,tc); //这个地方注意了， 是重点，Tank类持有TankClient的引用，来修改TankClient的属性 tc.missiles.add(m);//向TankClient类的炮弹容 器里加入一发炮弹 //开火的声音 只有我方装甲车开火时,才有声音,要不太烦人了 if(good) Sound.play_fire(); return m; } public Missile fire_time() { if(System.nanoTime()-time>500000000)//这个值经过试玩,是正好的,不用怀疑 { //System.out.println(time); time=System.nanoTime();//重新计时 return fire(); } else{ return null; } } public Rectangle getRect() { if(ptDir==Direction.D||ptDir==Direction.U) { //装甲车是上下运动的,41X53像素 return new Rectangle(x,y,WIDTH,HEIGHT+13);//加6是为了修正 碰撞边缘 } else { // 装甲车是左右运动的,63X40像素 return new Rectangle(x,y,WIDTH+23,HEIGHT); } } public boolean isLive() { return live; } public void setLive(boolean live) { this.live = live; } public boolean isGood() { return good; } public void setGood(boolean good) { this.good = good; } //把x,y的坐标值,赋为旧坐标 private void stay() { x = oldX; y = oldY; } public boolean collidesWithWall(Wall w) { if(this.live && this.getRect().intersects(w.getRect())) { this.stay(); return true; } return false; } public boolean collidesWithTanks(java.util.List<Tank> tanks) { for(int i=0;i<tanks.size();i++) { Tank t=tanks.get(i); if(t!=this) { if(this.live && t.isLive()&&this.getRect().intersects(t.getRect())) { this.stay(); t.stay(); return true; } }