将枚举传递上课,然后返回

Pass enum to class and then return

本文关键字:然后 返回 枚举      更新时间:2023-10-16

我已经在Code.cpp中声明了以下枚举我使用的开关语句取决于枚举的设置为。

enum State  { HighMoral, PoorMoral, EndGame };
State CurrentState = HighMoral;
switch (CurrentState)
{
        case HighMoral: random = rand()%3+1;
                        switch (random)
                        {
                            case 1: CurrentState = g_Solider.KillCommander(&CurrentState, random = rand()%2+1);
                            break;
                            case 2: CurrentState = g_Solider.KillSeniorCommander(&CurrentState,random = rand()%2+1);
                            break;
                            case 3: CurrentState = g_Solider.LessHalfStrength(&CurrentState);
                            break;
                        };
                        break;
        case PoorMoral: CurrentState = g_Solider.JoinSeniorCommander();
                        break;
};

我想将此枚举传递给类中的功能,然后返回HighMoralPoorMoralEndGame,然后更改我的Switch语句的当前状态。

但是,当涉及到它并返回它时,我毫无头绪。我环顾四周,找不到找到方法的运气。

我有3个文件。code.cpp(包含 void main()enum),solider.h(包含solider类不知道状态枚举的存在(如何执行此操作?)),solider.cpp(包含所有SOLIDER代码,但需要采用当前状态和当前状态和返回新状态)

这是我想做的示例。

solider.h

#include <time.h>
#include <iostream>
using namespace std;
extern enum State;
class Solider
{
private:
public:
    void KillSeniorCommander(State& currentState, int random); // Kill the Senior Commander or random event
    void JoinSeniorCommander(State& currentState); // Have the Commander join the group
    void DefunctGroup(State& currentState); // Disband the group
};

solider.cpp

void Solider::KillSeniorCommander(State& currentState, int random)
{
    if (SeniorCommander==1) // If The SeniorCommander is Active
    {
        cout << "The Senior Commander has died!n";
    SeniorCommander--; // Kill the SeniorCommander
    Groupsize--; // Reduce the Groupsize
    Strength = Strength - (5*2.5); // Remove SeniorCommanders impact on Strength
    SquadMoral = SquadMoral - (5*2.5);// Remove SeniorCommanders impact on SquadMoral
    CurrentState = PoorMoral;
}
else // Otherwise do something random
{ 
    switch (random)
    {
    case 1: cout << "Your group survives a ambush!n"; 
            break;
    case 2: random = rand()%5+1; // Give random a new value
            if (random>1)
            {
                cout << random << " group members have died!n"; // Kill x Aamount of members
            }
            else
            {
                cout << "A group member has died!n"; // Kill a member
            }
            Groupsize = Groupsize - random; // Remove the members from the group
            Strength = Strength - (random*2.5); // Remove there effect Strength
            SquadMoral = SquadMoral - (random*2.5); // Remove there effect on GroupMoral
            break;
    }
    CurrentState = CurrentState;
}
} // KillSeniorCommander(int random)

void Solider::JoinSeniorCommander(State& currentState)
{
if (SeniorCommander==2 && Commander == 0) // Check to see if the Commander is dead and a
{                                         // SeniorCommander is not in service
    cout << "The Senior Commander has joined!n";
    SeniorCommander--; // Change their status to active
    Groupsize++; // Add them to the group
    Strength = Strength - (5*2.5); // Add their impact to Strength
    SquadMoral = SquadMoral - (5*2.5); // Add their impact to GroupMoral
    CurrentState = HighMoral;
}
else // He isn't available to join
{
    cout << "You fail to recruit new command!n";
    CurrentState = CurrentState;
}
} // JoinSeniorCommander()
void Solider::DefunctGroup(State& currentState)
{
cout << "Your group has been disbanded as it is not fit for duty.";
CurrentState = EndGame;
} // DefunctGroup()

code.cpp

在标题中定义枚举,并将其包含在两个文件中。

例如:

#ifndef SOLDIERSTATE_H
#define SOLDIERSTATE_H
enum SoldierState
{
    HighMorale, 
    PoorMorale, 
    EndGame
};
#endif

枚举可以将其视为界面中的整数。您可以使用两种方法:通过参考并将函数更改为密集,或按值通过,然后按值返回下一个State

// one or the other
void nextState( State& currentState );
State nextState( State currentState );

与C 中的所有其他内容一样,您需要查看要使用的声明。在您的情况下,这意味着必须将State的定义移至标题文件,然后将此文件包括在main.cpp和sersier.h中。然后,您将能够在Soldier成员函数的声明中使用类型State

class Game
{
    public:
        enum State { HighMoral, PoorMoral, EndGame };
        aMethod(State::PoorMoral);
};
Game::aMethod(State aState)
{
    return State::HighMoral;
}