游戏角色类

//
//  main.cpp
//  activity
//
//  Created by 徐伟 on 6/13/16.
//  Copyright © 2016 fizz. All rights reserved.
//

#include <iostream>
using namespace std;
class Role
{
public:
void eat(int d); //吃东西，涨d血
void attack(); //攻击别人，涨1血
void beAttack(); //被攻击，失1血，血为0死掉
bool isAlived(); //是否活着
void setRole(string nam, int b); //设置
void show(); //显示
private:
string name;
int blood;
bool life;
};
void Role::eat(int d) //吃东西，涨d血
{
if(isAlived())
blood+=d;
}
void Role::attack() //攻击别人，涨1血
{
if(isAlived())
blood++;
}
void Role::beAttack() //被攻击，失1血，血为0死掉
{
if(isAlived())
blood--;
if(blood==0)
life=false;
}
bool Role::isAlived() //是否活着
{
return life;
}
void Role::setRole(string nam, int b) //设置
{
name=nam;
blood=b;
if(blood>0)
life=true;
else
life=false;
}
void Role::show() //显示
{
cout<<name<<" has "<<blood<<" blood, it is ";
if(isAlived())
cout<<"alived.";
else
cout<<"dead.";
cout<<endl;
}
int main( )
{
Role mary;
mary.setRole("Mary", 4);
mary.show();
mary.attack();
mary.eat(2);
mary.beAttack();
mary.beAttack();
mary.show();
return 0;
}