一个游戏角色案例，通过接口，实现游戏角色的职业、武器、伤害
角色行为接口（用于角色的攻击和修炼方法）
package com.hope.zuoye2;
public interface JiaoSe {//角色接口
int attack(WuQi type);//攻击方法，返回对敌人的伤害值
void practise();//修炼方法，练习后会提升金币
}
角色抽象类（实现角色行为的接口）
package com.hope.zuoye2;
public abstract class NameRole implements JiaoSe {
String name;
int age;
String career;
public NameRole(String name, int age, String career) {
this.name = name;
this.age = age;
this.career = career;
}
public NameRole() {
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getCareer() {
return career;
}
public void setCareer(String career) {
this.career = career;
}
@Override
public String toString() {
return "NameRole{" +
"name='" + name + '\'' +
", age=" + age +
", career='" + career + '\'' +
'}';
}
@Override
public int attack(WuQi type) {//返回值为角色的攻击对敌人的伤害
return 0;
}
@Override
public void practise() {//练习方法，练习后会提升金币
}
}
战士类(实现角色抽象类)
package com.hope.zuoye2;
import javax.sound.midi.Soundbank;
import java.sql.SQLOutput;
public class Soldier extends NameRole { //战士类
int money;//金币
private int hurt;//伤害
int count=0;//角色修炼的次数
public Soldier(String name, int age, String career, int money, int hurt) {
super(name, age, career);
this.money = money;
this.hurt = hurt;
}
public Soldier() {
}
public int getMoney() {
return money;
}
public void setMoney(int money) {
this.money = money;
}
public int getHurt() {
return hurt;
}
public void setHurt(int hurt) {
this.hurt = hurt;
}
@Override
public int attack(WuQi type) {//返回值为角色的攻击对敌人的伤害
//角色购买装备 伤害增加 调用购买武器的方法
int armshurt = arms(type);
return armshurt;
}
@Override
public void practise() {//练习方法，练习后会提升金钱
//当金币大于500时 并积累了10次修炼就不可以再修炼 每次修炼金币在原有的基础上+30
if(money<500){
if(count<10){
money+=30;
count++;
System.out.println("修炼后金钱为："+money);
}else {
System.out.println("您今天的修炼次数太频繁了，请明天再来修炼");
}
}else {
System.out.println("您的金币已达到上限不能在修炼了");
}
}
//购买武器的方法
public int arms(WuQi type) {//将武器的属性作为参数传过来
//当角色的金币大于装备需要的金币时才可以购买
if (money> type.getMoney()){
//叠加伤害 =原有伤害+物理武器攻击力的10%
hurt+=(type.getAttackPower()*0.10);
System.out.println("你成功购买装备"+type.getName());
money-=type.getMoney();
}else {
System.out.println("余额不足");
}
return hurt;
}
@Override
public String toString() {
return "Soldier{" +
"money=" + money +
", hurt=" + hurt +
", name='" + name + '\'' +
", age=" + age +
", career='" + career + '\'' +
'}';
}
}
武器类
package com.hope.zuoye2;
public class WuQi {
private String name;//武器名字
private int money;//花费金币
private int attackPower;//攻击力
private int spellPower;//法术攻击力
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getMoney() {
return money;
}
public void setMoney(int money) {
this.money = money;
}
public int getAttackPower() {
return attackPower;
}
public void setAttackPower(int attackPower) {
this.attackPower = attackPower;
}
public int getSpellPower() {
return spellPower;
}
public void setSpellPower(int spellPower) {
this.spellPower = spellPower;
}
public WuQi(String name, int money, int attackPower, int spellPower) {
this.name = name;
this.money = money;
this.attackPower = attackPower;
this.spellPower = spellPower;
}
public WuQi() {
}
}
法师类（同战士类）
package com.hope.zuoye2;
public class Magicer extends NameRole {
int money;
private int hurt;//伤害
int count=0;
public Magicer(String name, int age, String career, int money, int hurt) {
super(name, age, career);
this.money = money;
this.hurt = hurt;
}
public Magicer() {
}
public int getMoney() {
return money;
}
public void setMoney(int money) {
this.money = money;
}
public int getHurt() {
return hurt;
}
public void setHurt(int hurt) {
this.hurt = hurt;
}
@Override
public int attack(WuQi type) {//返回值为角色的攻击对敌人的伤害
int armshurt = arms(type);
return armshurt;
}
@Override
public void practise() {//练习方法，练习后会提升金钱
if(money<500){
if(count<10){
money+=30;
count++;
System.out.println("修炼后金钱为："+money);
}else {
System.out.println("您今天的修炼次数太频繁了，请明天再来修炼");
}
}else {
System.out.println("您的金币已达到上限不能在修炼了");
}
}
public int arms(WuQi type) {
//叠加伤害 =原有伤害+法术武器攻击力的25%
if (money> type.getMoney()){
hurt+=(type.getSpellPower()*0.25);
System.out.println("你成功购买装备"+type.getName());
money-=type.getMoney();
}else {
System.out.println("余额不足");
}
return hurt;
}
@Override
public String toString() {
return "Magicer{" +
"money=" + money +
", hurt=" + hurt +
", name='" + name + '\'' +
", age=" + age +
", career='" + career + '\'' +
'}';
}
}
测试类
package com.hope.zuoye2;
import java.util.List;
import java.util.Scanner;
public class TestNameRole {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
boolean bn=false;
NameRole nameRole=null;
int enterCount=3;//允许重新输入的次数
while(!bn){//循环
System.out.println("1.创建角色，2.购买装备3.修炼 4.退出");
if (sc.hasNextInt()){
int num=sc.nextInt();
switch (num){
case 1:
System.out.println("请输入角色名称:");
String name = sc.next();
System.out.println("请输入角色年龄:");
int age=sc.nextInt();
System.out.println("请输入角色职业:");
String career=sc.next();
if(career.equals("战士")){
nameRole = new Soldier(name,age,career,300,30);
}
else if (career.equals("法师")){
nameRole=new Magicer(name,age,career,340,60);
}
else if (!career.equals("战士") || !career.equals("法师")){
System.out.println("没有该职业");
}
System.out.println("请按n返回上一级");
String n=sc.next();
if(!n.equals("n")){
bn=true;
}
break;
case 2:
//购买装备 当前对象不为null时 允许购买
if (nameRole!=null){
if (nameRole.getCareer().equals("战士")){
WuQi wuQi = new WuQi("无尽战刃", 120, 150, 0);
int attack = nameRole.attack(wuQi);
System.out.println(nameRole.toString()+"现在物理伤害："+attack);
}else {
WuQi wuQi = new WuQi("回响之杖", 130, 0, 160);
int attack = nameRole.attack(wuQi);
System.out.println(nameRole.toString()+"现在法术伤害："+attack);
}
}else {
System.out.println("请先创建角色，再购买装备");
}
break;
case 3:
if(nameRole!=null){
//当前对象不为null时 调用修炼方法
nameRole.practise();
}else {
System.out.println("请先创建角色，再修炼");
}
break;
case 4:
//退出
bn=true;
break;
default:
if (enterCount>1){//当enterCount允许重新输入的次数大于1时执行
enterCount--;
System.out.println("输入错误，请重新输入还有"+enterCount+"机会");
}else {
System.out.println("请重新运行程序");
bn=true;
}
break;
}
}
}
}
}
