杀伤距离有限制

#include <iostream>
#include "game.h"
using namespace std;

int main( )
{
    Weapon w1("Gold stick",200, 100), w2("Fire point gun",180,300);
    Role wuKong("WuKong", 500, Point(0, 0), w1);
    Role neZha("NeZha", 210, Point(30,30), w2);
    cout<<"---begin---"<<endl;
    wuKong.show();
    neZha.show();
    cout<<"---1st round---"<<endl;
    wuKong.attack(neZha);
    wuKong.show();
    neZha.show();
    cout<<"---2nd round---"<<endl;
    neZha.attack(wuKong);
    wuKong.show();
    neZha.show();
    cout<<"---3rd round---"<<endl;
    neZha.moveTo(100,100); //哪吒走开,悟空打不到哪吒
    wuKong.attack(neZha);
    wuKong.show();
    neZha.show();
    cout<<"---4th round---"<<endl; //这个距离在火尖枪的射程内
    neZha.attack(wuKong);
    wuKong.show();
    neZha.show();
    cout<<"---then---"<<endl;  //哪吒一直打,悟空惨了
    neZha.attack(wuKong);
    neZha.attack(wuKong);
    wuKong.attack(neZha);
    wuKong.show();
    neZha.show();
    cout<<"---end---"<<endl;
    return 0;
}



#include "game.h"
#include <cmath>

Point::Point(int x, int y): x(x), y(y) { }
int Point::getX()
{
    return x;
}
int Point::getY()
{
    return y;
}
//移到另外一点
void Point::moveTo(int x, int y)
{
    this->x=x;
    this->y=y;
}
//从当前位置移动
void Point::move(int dx, int dy)
{
    this->x+=dx;
    this->y+=dy;
}
double Point::distance(const Point& p)
{
    double dx = this->x - p.x;
    double dy = this->y - p.y;
    return (sqrt(dx * dx + dy * dy));
}




#include "game.h"
Weapon::Weapon(string wnam, int f, double k):wname(wnam),force(f),killRange(k) {}
Weapon::Weapon(const Weapon &w):wname(w.wname),force(w.force),killRange(w.killRange) {}
string Weapon::getWname()
{
    return wname;
}

//返回杀伤力
int Weapon::getForce()
{
    return force;
}
//返回杀伤距离
double Weapon::getKillRange()
{
    return killRange;
}


#include <iostream>
#include "game.h"
using namespace std;

Role::Role(string nam, int b, Point l, Weapon w):name(nam),blood(b),location(l),weapon(w)
{
    if(blood>0)
        life=true;
    else
        life=false;
}
Role::~Role()
{
    cout<<name<<"退出江湖..."<<endl;
}

//吃东西,涨d血(死了后吃上东西可以复活)
void Role::eat(int d) //吃东西,涨d血(死了也能吃,别人喂的,以使能复活)
{
    blood+=d;
    if(blood>0)
        life=true;
}

//攻击别人,自己涨血,同时对方被攻击失血,血量取决于当前用的武器
//在武器的攻击范围内才可以攻击
void Role::attack(Role &r) //攻击别人,涨1血
{
    if(isAlived()&&weapon.getKillRange()>this->distance(r)) //活着且在杀伤范围内
    {
        blood+=weapon.getForce();
        r.beAttack(weapon.getForce());
    }
}

//被别人攻击,参数f是承受的攻击力
void Role::beAttack(int f)
{
    blood-=f;
    if(blood<=0)
        life=false;
}

//返回与另一角色的距离
double Role::distance(Role &r)
{
    return location.distance(r.location);
}

//是否活着
bool Role::isAlived()
{
    return life;
}
//移到另外一点
void Role::moveTo(int x, int y)
{
    if(isAlived())
        location.moveTo(x,y);
}
//从当前位置移动
void Role::move(int dx, int dy)
{
    if(isAlived())
        location.move(dx,dy);
}
//显示
void Role::show()
{
    cout<<name<<" has "<<blood<<" blood, hold "<<weapon.getWname();
    cout<<". He is in ("<<location.getX()<<", "<<location.getY()<<") and ";
    if(isAlived())
        cout<<"alived.";
    else
        cout<<"dead.";
    cout<<endl;
}



#ifndef GAME_H_INCLUDED
#define GAME_H_INCLUDED
#include <string>
using namespace std;

class Point     //Point类声明
{
public: //外部接口
    Point(int x=0, int y=0);
    int getX();
    int getY();
    double distance(const Point &p);  //返回与另外一点p之间的距离
    void moveTo(int x, int y); //移到另外一点
    void move(int dx, int dy); //从当前位置移动
private:
    int x, y;  //座标
};

class Weapon
{
public:
    Weapon(string wnam, int f, double k);
    Weapon(const Weapon&);
    string getWname();
    int getForce();         //返回杀伤力
    double getKillRange();  //返回杀伤距离
private:
    string wname;   //名称
    int force;       //杀伤力
    double killRange;   //杀伤距离
};

class Role
{
public:
    Role(string nam, int b, Point l, Weapon w); //构造函数
    ~Role(); //析构函数
    void eat(int d); //吃东西,涨d血(死了后吃上东西可以复活)
    void attack(Role &r); //攻击别人,自己涨血,同时对方被攻击失血。血量取决于当前用的武器
    void beAttack(int f); //被别人攻击,参数f是承受的攻击力
    double distance(Role &r); //返回与另一角色的距离
    bool isAlived(); //是否活着
    void moveTo(int x, int y); //移到另外一点
    void move(int dx, int dy); //从当前位置移动
    void show(); //显示
private:
    string name;  //角色名称
    int blood;    //当前血量
    bool life;    //是否活着
    Point location;  //位置
    Weapon weapon;  //武器
};

#endif // GAME_H_INCLUDED


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