[英]C++ composition circular dependency
我正在尝试学习C ++,目前正在尝试了解如何以这种语言实现对象组合。
我有一个Hero
类和Monster
类继承的Character
类。
Character
具有NormalAbility
和SpecialAbility
。
我已经创建了NormalAbility
和SpecialAbility
类,并且都继承了Ability
超类。
我的问题是,当我把#包括“Character.h”在Ability.h在normalAbility和specialAbility变量Character.h
没有得到承认他们的尊重类。 两种Ability继承类的标头中均显示诸如“语法错误:标识符字符串”之类的错误
这是我的代码:
Character.h
#pragma once
#include <string>
#include "NormalAbility.h"
#include "SpecialAbility.h"
using namespace std;
class Character
{
public:
Character(string name, string type, int hp, NormalAbility na,
SpecialAbility sa);
bool isDead();
void damage(int amt);
void heal(int amt);
void attack(Character* c, int amt);
private:
string name;
string type;
int hp;
int maxHp;
NormalAbility* normalAblity;
SpecialAbility* specialAbility;
}
Character.cpp
#include "Character.h"
#include <iostream>
Character::Character(string name, string type, int hp, NormalAbility* na,
SpecialAbility* sa)
{
this->name = name;
this->type = type;
this->maxHp = hp;
this->hp = hp;
normalAbility = na;
specialAbility = sa;
}
bool Character::isDead(){
return hp <= 0;
}
void Character::damage(int amt){
if (hp > 0){
hp -= amt;
}
else{
hp = 0;
}
}
void Character::heal(int amt){
if (hp + amt > maxHp){
hp = maxHp;
}
else{
hp += amt;
}
}
void Character::attack(Character* c, int amt){
c->damage(amt);
}
Hero.h
#pragma once
#include "Character.h"
#include <string>
using namespace std;
class Hero :
public Character
{
public:
Hero(string name, int hp);
}
Hero.cpp
#include "Hero.h"
#include <iostream>
Hero::Hero(string name, int hp)
: Character(name, "Hero", hp)
{
}
Ability.h
#pragma once
#include <string>
#include "Character.h"
using namespace std;
class Ability
{
public:
Ability(string name, string type, Character* owner);
void levelUp();
private:
string name;
string type;
int level;
Character* owner;
}
Ability.cpp
#include "Ability.h"
Ability::Ability(string name, string type, Character* owner)
{
this->name = name;
this->type = type;
this->owner = owner;
level = 1;
}
void Ability::levelUp(){
level++;
}
NormalAbility.h
#pragma once
#include "Ability.h"
#include <string>
using namespace std;
class NormalAbility :
public Ability
{
public:
NormalAbility(string name);
}
NormalAbility.cpp
#pragma once
#include "NormalAbility.h"
#include <string>
using namespace std;
NormalAbility::NormalAbility(string name) : Ability(name, "Normal")
{
//some codes
}
这样,您就避免了.h文件的循环包含,因为您将其包含在.cpp中,而在.h中则表示,“字符存在,但现在不在乎他的定义”
能力
#pragma once
#include <string>
class Character;
using namespace std;
class Ability
{
public:
Ability(string name, string type, Character* owner);
void levelUp();
private:
string name;
string type;
int level;
Character* owner;
}
能力
#include "Ability.h"
#include "Character.h"
Ability::Ability(string name, string type, Character* owner)
{
this->name = name;
this->type = type;
this->owner = owner;
level = 1;
}
void Ability::levelUp(){
level++;
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.