0x1 【C 】PK游戏（玩转多态）
0x11 简介
本案例为多态应用； 武器类属性：基础伤害、特效（吸血、定身、暴击）；屠龙刀：吸血、定身、暴击的几率
小刀：无任何能力
英雄：攻击力、防御、血量、武器、装备武器、攻击怪物
怪物：攻击力、防御、血量、攻击英雄
核心算法：通过isTrigger判断是否触发特效 系统随机产生 1~100的数字（例如传进来一个30，然后产生一个随机数，如果这个随机数在1-30之间，则触发特效）
0x12 代码实现（h）
0x121 Dragonsword.h
代码语言：javascript复制//
// Created by 24607 on 2022/11/10.
//
#ifndef TEST_DRAGONSWORD_H
#define TEST_DRAGONSWORD_H
#pragma once
#include <iostream>
#include "Weapon.h"
#include <string>
using namespace std;
/**
* 武器类属性：基础伤害、特效（吸血、定身、暴击）
* 屠龙刀拥有：吸血、定身、暴击的几率
*/
class DragonSword : public Weapon {
public:
DragonSword();
//获取基础伤害
virtual int getBaseDamage();
//获取吸血
virtual int getSuckBlood();
//获取是否定身
virtual bool getHold();
//获取是否暴击
virtual bool getCrit();
// 吸血率 定身率 暴力率
int suckRate;
int holdRate;
int critRate;
//传入概率 判断是否触发
bool isTrigger(int rate);
};
#endif //TEST_DRAGONSWORD_H
0x122 Hero.h
代码语言：javascript复制//
// Created by 24607 on 2022/11/10.
//
#ifndef TEST_HERO_H
#define TEST_HERO_H
#pragma once
#include <iostream>
#include "Weapon.h"
#include <string>
#include "Monster.h"
using namespace std;
class Monster;
/**
* 英雄：攻击力、防御、血量、武器、装备武器、攻击怪物
*/
class Hero {
public:
Hero();
string m_Name; //人名
int m_Atk; //攻击力
int m_Def; // 防御力
int m_Hp; //血量
Weapon *weapon; //武器
void EquipWeapon(Weapon *weapon);//装备武器
void Attack(Monster *monster);//攻击怪物
};
#endif //TEST_HERO_H
0x123 Knife.h
代码语言：javascript复制//
// Created by 24607 on 2022/11/10.
//
#ifndef TEST_KNIFE_H
#define TEST_KNIFE_H
#pragma once
#include <iostream>
#include "Weapon.h"
#include <string>
using namespace std;
/**
* 武器类属性：基础伤害、特效（吸血、定身、暴击）
* 小刀：无任何能力
*/
class Knife : public Weapon {
public:
Knife();
//获取基础伤害
virtual int getBaseDamage();
//获取吸血
virtual int getSuckBlood();
//获取是否定身
virtual bool getHold();
//获取是否暴击
virtual bool getCrit();
};
#endif //TEST_KNIFE_H
0x124 Monster.h
代码语言：javascript复制//
// Created by 24607 on 2022/11/10.
//
#ifndef TEST_MONSTER_H
#define TEST_MONSTER_H
#pragma once
#include <iostream>
#include "Weapon.h"
#include <string>
#include "Hero.h"
using namespace std;
class Hero;
/*
* 怪物：攻击力、防御、血量、攻击英雄
*/
class Monster {
public:
Monster();
string m_Name;
int m_Hp;
int m_Atk;
int m_Def;
bool m_Hold;
void Attack(Hero *hero);
};
#endif //TEST_MONSTER_H
0x125 Weapon.h
代码语言：javascript复制//
// Created by 24607 on 2022/11/10.
//
#ifndef TEST_WEAPON_H
#define TEST_WEAPON_H
#pragma once
#include <iostream>
#include <string>
using namespace std;
//抽象类
class Weapon {
public:
//获取基础伤害
virtual int getBaseDamage() = 0;
//获取吸血
virtual int getSuckBlood() = 0;
//获取是否定身
virtual bool getHold() = 0;
//获取是否暴击
virtual bool getCrit() = 0;
string m_WeaponName; //武器名称
int m_BaseDamage; //基础伤害
};
#endif //TEST_WEAPON_H
0x13 实现部分（cpp）
0x131 Dragonsword.cpp
代码语言：javascript复制//
// Created by 24607 on 2022/11/10.
//
#include "Dragonsword.h"
DragonSword::DragonSword() {
this->m_BaseDamage = 20;
this->m_WeaponName = "屠龙刀";
this->suckRate = 20;
this->holdRate = 30;
this->critRate = 35;
}
//基础伤害
int DragonSword::getBaseDamage() {
return this->m_BaseDamage;
}
//吸血
int DragonSword::getSuckBlood() {
if (isTrigger(suckRate)) {
return this->m_BaseDamage * 0.5; //按照武器基础伤害一半吸血
}
return 0;
}
//定身
bool DragonSword::getHold() {
if (isTrigger(holdRate)) {
return true;
}
return false;
}
//暴击
bool DragonSword::getCrit() {
if (isTrigger(critRate)) {
return true;
}
return false;
}
//通过isTrigger判断是否触发特效
//随机 1~100的数字
//（例如传进来一个30，然后产生一个随机数，如果这个随机数在1-30之间，则触发特效）
bool DragonSword::isTrigger(int rate) {
int num = rand() % 100 1;//产生随机数1-100
if (num < rate) {
return true;
}
return false;
}
0x132 Hero.cpp
代码语言：javascript复制//
// Created by 24607 on 2022/11/10.
//
#include "Hero.h"
Hero::Hero() {
this->m_Hp = 500;//血量
this->m_Atk = 50;//攻击力
this->m_Def = 50;//防御
this->m_Name = "法师";
this->weapon = NULL;
}
//装备武器
void Hero::EquipWeapon(Weapon *weapon) {
this->weapon = weapon;
cout << "英雄：" << this->m_Name << " 装备了武器 << " << this->weapon->m_WeaponName << " >> " << endl;
}
//攻击
void Hero::Attack(Monster *monster) {
int damage = 0;//伤害
int addHp = 0;//加血
bool isHold = false;//定身
bool isCrit = false;//暴击
if (this->weapon == NULL) //武器为空 没有加成
{
damage = this->m_Atk;
} else {
//基础伤害
damage = this->m_Atk this->weapon->getBaseDamage();
//计算吸血
addHp = this->weapon->getSuckBlood();
//计算定身
isHold = this->weapon->getHold();
//计算暴击
isCrit = this->weapon->getCrit();
}
if (isCrit) //暴击 伤害 加成
{
damage = damage * 2;
cout << "英雄的武器触发了暴击效果，怪物收到了双倍的伤害，伤害值：" << damage << endl;
}
if (isHold) {
cout << "英雄的武器触发了定身效果，怪物停止攻击一回合" << endl;
}
if (addHp > 0) {
cout << "英雄的武器触发了吸血效果，英雄增加的血量为" << addHp << endl;
}
//设置怪物定身
monster->m_Hold = isHold;
//计算真实伤害
int trueDamage = (damage - monster->m_Def) > 0 ? damage - monster->m_Def : 1;
monster->m_Hp -= trueDamage;//怪物掉血
this->m_Hp = addHp;//加血
cout << "英雄 " << this->m_Name << " 攻击了敌人 " << monster->m_Name << " 造成了 伤害" << trueDamage << endl;
}
0x133 Knife.cpp
代码语言：javascript复制//
// Created by 24607 on 2022/11/10.
//
#include "Knife.h"
Knife::Knife() {
this->m_BaseDamage = 10;
this->m_WeaponName = "小刀";
}
int Knife::getBaseDamage() {
return this->m_BaseDamage;
}
int Knife::getSuckBlood() {
return 0;
}
bool Knife::getHold() {
return false;
}
bool Knife::getCrit() {
return false;
}
0x134 Monster.cpp
代码语言：javascript复制//
// Created by 24607 on 2022/11/10.
//
#include "Monster.h"
Monster::Monster() {
this->m_Hp = 300;
this->m_Atk = 70;
this->m_Def = 40;
this->m_Hold = false;
this->m_Name = "哥布林";
}
void Monster::Attack(Hero *hero) {
if (this->m_Hold) {
cout << "怪物 " << this->m_Name << " 被定身了，本回合无法攻击" << endl;
return;
}
//计算攻击伤害
int damage = (this->m_Atk - hero->m_Def) > 0 ? this->m_Atk - hero->m_Def : 1;
hero->m_Hp -= damage;
cout << "怪物 " << this->m_Name << "攻击了英雄 " << hero->m_Name << " 造成了 伤害" << damage << endl;
}
0x135 主函数调用部分
代码语言：javascript复制#include <iostream>
#define _CRT_SECURE_NO_WARNINGS
#include "Hero.h"
#include "Monster.h"
#include "Weapon.h"
#include "Knife.h"
#include "DragonSword.h"
#include <ctime>
using namespace std;
void play() {
//创建怪物
Monster *monster = new Monster;
//创建英雄
Hero *hero = new Hero;
//创建武器
Weapon *kinfe = new Knife;
Weapon *dragon = new DragonSword;
//让用户选择 武器
cout << "请选择武器：" << endl;
cout << "1. 赤手空拳" << endl;
cout << "2. 小刀" << endl;
cout << "3. 屠龙刀" << endl;
int oper;//选择
cin >> oper;
switch (oper) {
case 1:
cout << "你真牛X，你还是太年轻了！" << endl;
break;
case 2:
hero->EquipWeapon(kinfe);
break;
case 3:
hero->EquipWeapon(dragon);
break;
}
getchar(); //输入缓冲区里有个回车 ，多获取一次值
int round = 1;//回合
while (true) {
getchar();
system("cls");//清屏
cout << "----- 当前第 " << round << " 回合开始 ------" << endl;
if (hero->m_Hp <= 0) {
cout << "英雄 " << hero->m_Name << "已挂 ，游戏结束" << endl;
break;
}
hero->Attack(monster);
if (monster->m_Hp <= 0) {
cout << "怪物 " << monster->m_Name << "已挂，顺利通关" << endl;
break;
}
monster->Attack(hero);
if (hero->m_Hp <= 0) {
cout << "英雄 " << hero->m_Name << "已挂 ，游戏结束" << endl;
break;
}
cout << "英雄 " << hero->m_Name << "剩余血量：" << hero->m_Hp << endl;
cout << "怪物 " << monster->m_Name << "剩余血量：" << monster->m_Hp << endl;
round ;
}
delete monster;
delete hero;
delete kinfe;
delete dragon;
}
/**
* pk游戏（玩转多态）
*
* @return
*/
int main() {
srand((unsigned int) time(NULL));
play();
system("pause");
return 0;
}
