Javaでオナニーゲームを実装するためのサンプルコードの共有

import java.util.Random;


 敌飞机: 是飞行物，也是敌人

public class Airplane extends FlyingObject implements Enemy {
 private int speed = 3; //移动步骤

 /** 初始化数据 */
 public Airplane(){
  this.image = ShootGame.airplane;
  width = image.getWidth();
  height = image.getHeight();
  y = -height;   
  Random rand = new Random();
  x = rand.nextInt(ShootGame.WIDTH - width);
 }

 /** 获取分数 */
 @Override
 public int getScore() { 
  return 5;
 }

 /** //越界处理 */
 @Override
 public  boolean outOfBounds() { 
  return y>ShootGame.HEIGHT;
 }

 /** 移动 */
 @Override
 public void step() { 
  y += speed;
 }

}

/** 
 * 奖励 
 */ 
public interface Award { 
 int DOUBLE_FIRE = 0; //双倍火力 
 int LIFE = 1; //1条命 
 /** 获得奖励类型(上面的0或1) */ 
 int getType(); 
}

import java.util.Random; 

/** 蜜蜂 */ 
public class Bee extends FlyingObject implements Award{ 
 private int xSpeed = 1; //x坐标移动速度 
 private int ySpeed = 2; //y坐标移动速度 
 private int awardType; //奖励类型 

 /** 初始化数据 */ 
 public Bee(){ 
  this.image = ShootGame.bee; 
  width = image.getWidth(); 
  height = image.getHeight(); 
  y = -height; 
  Random rand = new Random(); 
  x = rand.nextInt(ShootGame.WIDTH - width); 
  awardType = rand.nextInt(2); //初始化时给奖励 
 } 

 /** 获得奖励类型 */ 
 public int getType(){ 
  return awardType; 
 } 

 /** 越界处理 */ 
 @Override 
 public boolean outOfBounds() { 
  return y>ShootGame.HEIGHT; 
 } 

 /** 移动，可斜着飞 */ 
 @Override 
 public void step() {  
  x += xSpeed; 
  y += ySpeed; 
  if(x > ShootGame.WIDTH-width){ 
   xSpeed = -1; 
  } 
  if(x < 0){ 
   xSpeed = 1; 
  } 
 } 
}

/** 
 * 子弹类:是飞行物 
 */ 
public class Bullet extends FlyingObject { 
 private int speed = 3; //移动的速度 

 /** 初始化数据 */ 
 public Bullet(int x,int y){ 
  this.x = x; 
  this.y = y; 
  this.image = ShootGame.bullet; 
 } 

 /** 移动 */ 
 @Override 
 public void step(){  
  y-=speed; 
 } 

 /** 越界处理 */ 
 @Override 
 public boolean outOfBounds() { 
  return y<-height; 
 } 

}

/** 
 * 敌人，可以有分数 
 */ 
public interface Enemy { 
 /** 敌人的分数 */ 
 int getScore(); 
}

import java.awt.image.BufferedImage; 

/** 
 * 飞行物(敌机，蜜蜂，子弹，英雄机) 
 */ 
public abstract class FlyingObject { 
 protected int x; //x坐标 
 protected int y; //y坐标 
 protected int width; //宽 
 protected int height; //高 
 protected BufferedImage image; //图片 

 public int getX() { 
  return x; 
 } 

 public void setX(int x) { 
  this.x = x; 
 } 

 public int getY() { 
  return y; 
 } 

 public void setY(int y) { 
  this.y = y; 
 } 

 public int getWidth() { 
  return width; 
 } 

 public void setWidth(int width) { 
  this.width = width; 
 } 

 public int getHeight() { 
  return height; 
 } 

 public void setHeight(int height) { 
  this.height = height; 
 } 

 public BufferedImage getImage() { 
  return image; 
 } 

 public void setImage(BufferedImage image) { 
  this.image = image; 
 } 

 /** 
  * 检查是否出界 
  * @return true 出界与否 
  */ 
 public abstract boolean outOfBounds(); 

 /** 
  * 飞行物移动一步 
  */ 
 public abstract void step(); 

 /** 
  * 检查当前飞行物体是否被子弹(x,y)击(shoot)中 
  * @param Bullet 子弹对象 
  * @return true表示被击中了 
  */ 
 public boolean shootBy(Bullet bullet){ 
  int x = bullet.x; //子弹横坐标 
  int y = bullet.y; //子弹纵坐标 
  return this.x<x && x<this.x+width && this.y<y && y<this.y+height; 
 } 

}

import java.awt.image.BufferedImage; 

/** 
 * 英雄机:是飞行物 Java学习交流QQ群：589809992 我们一起学Java！
 */ 
public class Hero extends FlyingObject{ 

 private BufferedImage[] images = {}; //英雄机图片 
 private int index = 0;    //英雄机图片切换索引 

 private int doubleFire; //双倍火力 
 private int life; //命 

 /** 初始化数据 */ 
 public Hero(){ 
  life = 3; //初始3条命 
  doubleFire = 0; //初始火力为0 
  images = new BufferedImage[]{ShootGame.hero0, ShootGame.hero1}; //英雄机图片数组 
  image = ShootGame.hero0; //初始为hero0图片 
  width = image.getWidth(); 
  height = image.getHeight(); 
  x = 150; 
  y = 400; 
 } 

 /** 获取双倍火力 */ 
 public int isDoubleFire() { 
  return doubleFire; 
 } 

 /** 设置双倍火力 */ 
 public void setDoubleFire(int doubleFire) { 
  this.doubleFire = doubleFire; 
 } 

 /** 增加火力 */ 
 public void addDoubleFire(){ 
  doubleFire = 40; 
 } 

 /** 增命 */ 
 public void addLife(){ //增命 
  life++; 
 } 

 /** 减命 */ 
 public void subtractLife(){ //减命 
  life--; 
 } 

 /** 获取命 */ 
 public int getLife(){ 
  return life; 
 } 

 /** 当前物体移动了一下，相对距离，x,y鼠标位置 */ 
 public void moveTo(int x,int y){  
  this.x = x - width/2; 
  this.y = y - height/2; 
 } 

 /** 越界处理 */ 
 @Override 
 public boolean outOfBounds() { 
  return false; 
 } 

 /** 发射子弹 */ 
 public Bullet[] shoot(){  
  int xStep = width/4;  //4半 
  int yStep = 20; //步 
  if(doubleFire>0){ //双倍火力 
   Bullet[] bullets = new Bullet[2]; 
   bullets[0] = new Bullet(x+xStep,y-yStep); //y-yStep(子弹距飞机的位置) 
   bullets[1] = new Bullet(x+3*xStep,y-yStep); 
   return bullets; 
  }else{  //单倍火力 
   Bullet[] bullets = new Bullet[1]; 
   bullets[0] = new Bullet(x+2*xStep,y-yStep); 
   return bullets; 
  } 
 } 

 /** 移动 */ 
 @Override 
 public void step() { 
  if(images.length>0){ 
   image = images[index++/10%images.length]; //切换图片hero0，hero1 
  } 
 } 

 /** 碰撞算法 */ 
 public boolean hit(FlyingObject other){ 

  int x1 = other.x - this.width/2;     //x坐标最小距离 
  int x2 = other.x + this.width/2 + other.width; //x坐标最大距离 
  int y1 = other.y - this.height/2;    //y坐标最小距离 
  int y2 = other.y + this.height/2 + other.height; //y坐标最大距离 

  int herox = this.x + this.width/2;    //英雄机x坐标中心点距离 
  int heroy = this.y + this.height/2;    //英雄机y坐标中心点距离 

  return herox>x1 && herox<x2 && heroy>y1 && heroy<y2; //区间范围内为撞上了 
 } 

}