JAVA项目 ----宠物小精灵11.26

Item下的equipment包

import com.cyx.pokemon.Item.Item;public abstract class Equipment extends Item {/*** 攻击力*/protected int attack;/*** 防御力*/protected int defense;/*** 生命值*/protected int health;public Equipment(String name) {super(name);}public Equipment(String name, int levelNumber) {super(name, levelNumber);}@Overridepublic String getItemInformation() {return name + "：攻击=" + attack + " 防御=" + defense + " 生命值=" + health;}
}

首先是Equipment这个大的抽象类， 里面这些要存在一些成员变量，切记记得把权限修改为protected，子类不能继承父类的private变量

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import java.util.Random;/*** 工具类*/
public class Tools {/*** 随机数对象*/private static final Random RANDOM = new Random();/***获取给定范围内的随机数* @param min 最小值* @param max 最大值* @param levelNumber 关卡编号* @return*/public static int getRandomNumber(int min, int max, int levelNumber) {int diff = (max - min) * levelNumber;return RANDOM.nextInt(diff) + min * levelNumber;}/***获取给定范围内的随机数* @param min 最小值* @param max 最大值* @return*/public static int getRandomNumber(int min, int max){return getRandomNumber(min, max, 1);}/***获取给定范围内的随机数* @param max 最大值* @return*/public static int getRandomNumber(int max){return getRandomNumber(0, max);}
}

这里需要注意的就是这个是RANDOM是一个静态 static常量（后面直接调用 类名.方法名），并且被final修饰，因为需要在其他类前面抢先运行这个Tools类 。

三个getRandomNumber方法环环相扣

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这里呢要注意一些设计一个工具类（单独建一个包写一个工具类，目的是让更多的类使用这个方法，使代码更加简洁化），因为在前面的Treasure 类 里面需要随机数类来产生一个随机数字

 在这里更新Treasure类

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public class Armor extends Equipment {      //先继承才有构造方法 才能沿用父类的构造方法public Armor(int levelNumber) {super("铠甲", levelNumber);this.attack = 0;this.defense = Tools.getRandomNumber(40, 50, levelNumber);this.health = Tools.getRandomNumber(200, 250, levelNumber);}}/*** 手镯*/
public class Bracelet extends Equipment{public Bracelet(int levelNumber) {super("手镯", levelNumber);this.attack = Tools.getRandomNumber(20, 30, levelNumber);this.defense = Tools.getRandomNumber(20, 20, levelNumber);this.health = Tools.getRandomNumber(100, 200, levelNumber);}
/**
* 头盔*/public class Helmet extends Equipment {      //先继承才有构造方法 才能沿用父类的构造方法public Helmet( int levelNumber) {super("头盔", levelNumber);this.attack = 0;this.defense = Tools.getRandomNumber(20, 30, levelNumber);this.health = Tools.getRandomNumber(100, 150, levelNumber);}
}/*** 护腿*/public class Leggings extends Equipment{public Leggings(int levelNumber) {super("护腿", levelNumber);this.attack = 0;this.defense = Tools.getRandomNumber(30, 40, levelNumber);this.health = Tools.getRandomNumber(150, 200, levelNumber);}
}/*** 项链*/
public class Necklace extends Equipment{public Necklace(int levelNumber) {super("项链", levelNumber);this.attack = Tools.getRandomNumber(25, 35, levelNumber);this.defense = Tools.getRandomNumber(25, 25, levelNumber);this.health = Tools.getRandomNumber(120, 180, levelNumber);}
}/*** 戒指*/
public class Ring extends Equipment{public Ring(int levelNumber) {super("戒指", levelNumber);this.attack = Tools.getRandomNumber(20, 30, levelNumber);this.defense = Tools.getRandomNumber(20, 20, levelNumber);this.health = Tools.getRandomNumber(100, 200, levelNumber);}
}/*** 鞋子*/
public class Shoe extends Equipment{public Shoe(int levelNumber) {super("鞋子", levelNumber);this.attack = 0;this.defense = Tools.getRandomNumber(10, 20, levelNumber);this.health = Tools.getRandomNumber(80, 100, levelNumber);}
}
/*** 武器*/
public class Weapon extends Equipment{public Weapon(int levelNumber) {super("武器", levelNumber);this.attack = Tools.getRandomNumber(100, 150, levelNumber);this.defense = 0;this.health = Tools.getRandomNumber(250, 300, levelNumber);}
}

这里也会用到随机数字，直接this出成员变量出来，然后直接赋值，

Tools.getRandomNumber(40, 50, levelNumber);