我正在监督一个技术营，其中一名营员为基于文本的视频游戏创建了一些代码，但他在显示结果时遇到了问题。虽然程序编译并正确运行，但选择“治愈”时，它不会增加玩家的健康，当用户选择“攻击”时，我们也会获得零。我在编程方面的知识有限，我正在尽我所能帮助他，这样他在这里的经历就会愉快而充实。如果您能提供任何帮助或建议，我们将不胜感激。这是代码:
// Test for hard stuff.cpp : Defines the entry point for the console application.
//
// Bigger proj
// Constructors will make characters with rolling statistics
#include "stdafx.h"
#include <iostream>
#include <string>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
using namespace std;
// declaring function for hit power
//int power( int str, int def);
int command;
class character
{
public:
character();
//~character();
string name;
float str;
float def;
float health; // hit points
float regen; // health regen amount
float roll; // for random value
float ouch; // amount of attack damage
float getAttack(void);
float getHeal(void);
void setRegen(float reg);
//void setHeal(float healAmt);
private:
};
character::character()
{
srand(time_t(NULL));
str = rand() % 30 + 5;
def = rand() % 30 + 5;
health = 100;
//Output to check the constructor is running properly
cout<< "Character has been created.\n";
}
void character::setRegen( float reg )
{
regen = reg;
}
float character::getAttack()
{
//defines the magnitude/power of attack
//function shows how much damage is inflicted
// ouch is how much damage is done
roll = rand() % 20 + 1; // range between 1 &20
if (roll <= 11)
{
ouch = str - (def /2);
}
else if ((roll <= 17) && (roll >= 12))
{
ouch = (str * 2) - (def / 2);
}
else if ((roll <= 20) && (roll >= 18))
{
ouch = (str * 3) - (def / 2);
//cout << "CRITICAL HIT!!";
}
return ouch;
}
float character::getHeal()
{
//this is what happens when you chose to heal
regen = rand() % 20 + 3;
cout << "regen value= " << regen<< ".\n";
return regen;
}
/*character::~character()
{
str = 0;
def = 0;
health = 0;
// Output to check the destructor is running properly
cout << "Character has been destroyed\n";
} */
int _tmain(int argc, _TCHAR* argv[])
{
//Class objects
character user, computer;
//Hard code in a name for the computer's player
computer.name = "ZOID\n";
float attackDamage;
float healthAdded;
user.setRegen(void);
//Recieve data for the user's player
cout<< "Please enter a name for your character:\n";
cin>> user.name;
//Output name and stats to the user
cout<< "\nYour name is: " << user.name << endl;
cout << "here are your statistics: \n"
<< "strength: " << user.str << endl
<< "Defense: " << user.def << endl
<< "Health: " << user.health << endl;
cout<< "oh no an oppenent appeared!!!\n";
cout<< "you will have to fight him!" << endl<< endl;
cout << "opponent's health: 100" << endl
<< "what would you like to do: heal (1), attack(2), or run(3).\n";
cin>> command;
switch(command)
{
case 1 :
healthAdded = user.getHeal();
cout<< ""<<user.name <<" has regenerated " << healthAdded << " health.\n";
break;
case 2 :
attackDamage = user.getAttack();
cout << "" <<user.name <<" did " << attackDamage << " damage to the opponent!\n";
break;
case 3:
cout<< ""<<user.name<<" got away!\n";
break;
default:
cout<< "Please enter a valid choice!";
} //end switch
return 0;
}
最佳答案
我会尽我所能一次提供帮助。我的行号可能与您的略有不同，因此请随意浏览一下。
在:
115 user.setRegen(void);
setRegen 声明为采用float:
20 class character
21 {
22 public:
.
.
.
34 void setRegen(float reg);
所以你不能传递void。顺便说一句，在 C++ 中，通常在调用不带参数的函数时不传递任何内容，而不是传递显式 void。但是，显式 void 是可以的。
getHeal() 函数计算一个随机数来治疗角色，但它实际上并不增加 health 成员变量。您可以通过这种方式实现修复，请参见第 92 行:
87 float character::getHeal()
88 {
89 //this is what happens when you chose to heal
90 regen = rand() % 20 + 3;
91 cout << "regen value= " << regen<< ".\n";
92 health += regen;
93 return regen;
94 } Z
你在攻击时也不会降低对手的生命值。一种方法是将对手的引用传递给 getAttack() 并在那里修改它:
58 float character::getAttack(character& opponent)
59 {
60 //defines the magnitude/power of attack
61 //function shows how much damage is inflicted
62
63
64 // ouch is how much damage is done
65 roll = rand() % 20 + 1; // range between 1 &20
66
67 if (roll <= 11)
68 {
69 ouch = str - (def /2);
70 }
71
72 else if ((roll <= 17) && (roll >= 12))
73 {
74 ouch = (str * 2) - (def / 2);
75 }
76
77 else if ((roll <= 20) && (roll >= 18))
78 {
79 ouch = (str * 3) - (def / 2);
80 //cout << "CRITICAL HIT!!";
81 }
82
83 opponent.health -= ouch;
84
85 return ouch;
86
87 }
您还需要更改 getAttack() 的声明(原型(prototype)):
20 class character
21 {
22 public:
.
.
.
32 float getAttack(character& opponent);
...以及它在 main() 中的调用方式:
152 case 2 :
153
154 attackDamage = user.getAttack(computer);
155
156 cout << "" <<user.name <<" did " << attackDamage << " damage to the opponent!\n";
157
158 break;
我还注意到程序根本没有循环。它只接受一个 Action ，执行它，然后终止。如果游戏循环直到其中一名玩家死亡，游戏可能会更有趣。
最后一件事，当使用随机数时，您通常在程序运行开始时恰好调用 srand。每次创建 character 时都会调用它。
Here是我之前关于使用 rand 的回答之一的无耻插件。
我为您做了一些修改。这是一个link to ideone使用与下面相同的代码:
// Test for hard stuff.cpp : Defines the entry point for the console application.
//
// Bigger proj
// Constructors will make characters with rolling statistics
//#include "stdafx.h"
#include <iostream>
#include <string>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
using namespace std;
// declaring function for hit power
//int power( int str, int def);
int command;
class character
{
public:
character();
//~character();
string name;
float str;
float def;
float health; // hit points
float regen; // health regen amount
float roll; // for random value
float ouch; // amount of attack damage
float getAttack(character& opponent);
float getHeal(void);
void setRegen(float reg);
bool IsAlive() const;
//void setHeal(float healAmt);
private:
};
character::character()
{
str = rand() % 30 + 5;
def = rand() % 30 + 5;
health = 100;
//Output to check the constructor is running properly
cout<< "Character has been created.\n";
}
bool character::IsAlive() const
{
return health > 0.0f;
}
void character::setRegen( float reg )
{
regen = reg;
}
float character::getAttack(character& opponent)
{
//defines the magnitude/power of attack
//function shows how much damage is inflicted
// ouch is how much damage is done
roll = rand() % 20 + 1; // range between 1 &20
if (roll <= 11)
{
ouch = str - (def /2);
}
else if ((roll <= 17) && (roll >= 12))
{
ouch = (str * 2) - (def / 2);
}
else if ((roll <= 20) && (roll >= 18))
{
ouch = (str * 3) - (def / 2);
//cout << "CRITICAL HIT!!";
}
opponent.health -= ouch;
return ouch;
}
float character::getHeal()
{
//this is what happens when you chose to heal
regen = rand() % 20 + 3;
cout << "regen value= " << regen<< ".\n";
health += regen;
return regen;
}
/*character::~character()
{
str = 0;
def = 0;
health = 0;
// Output to check the destructor is running properly
cout << "Character has been destroyed\n";
} */
int main()
{
srand(time_t(NULL));
//Class objects
character user, computer;
//Hard code in a name for the computer's player
computer.name = "ZOID\n";
float attackDamage;
float healthAdded;
user.setRegen(42.0);
//Recieve data for the user's player
cout<< "Please enter a name for your character:\n";
cin>> user.name;
//Output name and stats to the user
cout<< "\nYour name is: " << user.name << endl;
cout << "here are your statistics: \n"
<< "strength: " << user.str << endl
<< "Defense: " << user.def << endl
<< "Health: " << user.health << endl;
cout<< "oh no an oppenent appeared!!!\n";
cout<< "you will have to fight him!" << endl<< endl;
cout << "opponent's health: 100" << endl;
while (user.IsAlive() && computer.IsAlive())
{
cout << "Str: " << user.str << "\t"
<< "Def: " << user.def << "\t"
<< "Health: " << user.health << "\t"
<< "\n";
cout << "what would you like to do: heal (1), attack(2), or run(3).\n";
cin>> command;
switch(command)
{
case 1 :
healthAdded = user.getHeal();
cout<< ""<<user.name <<" has regenerated " << healthAdded << " health.\n";
break;
case 2 :
attackDamage = user.getAttack(computer);
cout << "" <<user.name <<" did " << attackDamage << " damage to the opponent!\n";
break;
case 3:
cout<< ""<<user.name<<" got away!\n";
break;
default:
cout<< "Please enter a valid choice!";
} //end switch
}
return 0;
}
关于c++ - 基于文本的冒险游戏，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/17578857/