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C++
#include <cmath>
#include <ctime>
#include <iostream>
#include <string>
#include <vector>

enum ItemType { 
    Weapon,
    Shield,
    Consumable,
    Necklance,
    Ring,
    Robe,
    Shirt,
    Pants,
    Helmet,
    Chestplate,
    Pauldron,
    Gauntlet,
    Greaves,
    Boots,
};

class Item
{
    private: 
            std::string Name;
            std::string material;
            int dataBaseID;
            int itemVal;
            std::string itemDesc;
            int maxItemCharges;
            ItemType type;
            int weaponDmg;
            int healBase;
            int armorRating;
            int enchantVal;
            int stack;
            int maxStack;
            bool stackable;

    public:
        std::string displayName = Name + " " + material;
        Item();
        Item(std::string Name, std::string material,
             std::string ItemDesc, int DatabaseID, int ItemType, 
             int Attack, int Defense, int GoldValue, int Stack, 
             int MaxStack, bool Stackable);
        std::string GetItem() {return Name;}
        std::string GetItemDesc() {return itemDesc;}
        std::string GetDispName() {return displayName;}
        int GetDatabaseID() {return dataBaseID;}
        int GetItemType() {return type;}
        int GetDmg() {return weaponDmg;}
        int GetArmorRating() {return armorRating;}
        int GetItemVal() {return itemVal;}
        int GetStack() {return stack;}
        int GetMaxStack() {return maxStack;}
        bool GetStackable() {return stackable;}
};
//Vector init:
std::vector<std::string> inventory;
        
void printVec(std::vector<std::string> vec) {
    for (int i = 0; i < vec.size(); i++) {
        std::cout << vec[i] << " \n";
    }
}

//Item init here:
Item copperLongsword("Longsword", "Copper", 
 "A longblade made of dull copper", 1, Weapon, 1, 0, 1, 1, 1, false);

int Die(int sides, int minVal) {
    srand((unsigned int) time(NULL));
    int roll = (rand() % sides) + minVal;
    return roll;
}

class Character {
    public:
        Character();
        virtual ~Character();

        void initialize();
        void levelUp();
        void statMods();
        void statDisplay();
        void getName();

        double xPos;
        double yPos;
    private:
        std::string name;
        int warriorLvl, rogueLvl, magicUserLvl;
        int level;
        int exp;
        int expReq;

        int strength;
        int dexterity;
        int constitution;
        int intelligence;
        int wisdom;
        int charisma;

        int strMod;
        int dexMod;
        int conMod;
        int intMod;
        int wisMod;
        int chaMod;

        int skillPoints;
        int statPoints;

        int hp;
        int hpMax;
        int stamina;
        int staminaMax;
        int damageMin;
        int damageMax;
        int armor, shield;
        int armorClass;
};

Character player;

Character::Character() {
    this->xPos = 0.0;
    this->yPos = 0.0;

    this->name = "";
    this->warriorLvl, this->rogueLvl, this->magicUserLvl = 0;
    this->level = 1;
    this->exp = 0;
    this->expReq = 0;

    this->strength = 0;
    this->dexterity = 0;
    this->constitution = 0;
    this->intelligence = 0;
    this->wisdom = 0;
    this->charisma = 0;

    this->strMod = 0;
    this->dexMod = 0;
    this->conMod = 0;
    this->intMod = 0;
    this->wisMod = 0;
    this->chaMod = 0;

    this->skillPoints = 0;
    this->statPoints = 0;

    this->hp = 0;
    this->hpMax = 0;
    this->stamina = 0;
    this->staminaMax = 0;
    this->damageMin = 0;
    this->damageMax = 0;
    this->armor, this->shield = 0;
    this->armorClass = 0;
}

Character::~Character() {

}

void Character::initialize() {
    this->xPos = 0.0;
    this->yPos = 0.0;

    this->name = name;
    this->warriorLvl = 0;
    this->rogueLvl = 0;
    this->magicUserLvl = 0;
    this->level = this->warriorLvl + this->rogueLvl + this->magicUserLvl;
    this->exp = 0;
    this->expReq = (50/3)*(pow(level, 3) - 
                       6*pow(level, 3) + (17*level) - 11);

    this->strength = Die(1, 15);
    this->dexterity = Die(1, 15);
    this->constitution = Die(1, 15);
    this->intelligence = Die(1, 15);
    this->wisdom = Die(1, 15);
    this->charisma = Die(1, 15);

    this->strMod = floor((strength - 10) / 2);
    this->dexMod = floor((dexterity - 10) / 2);
    this->conMod = floor((constitution - 10) / 2);
    this->wisMod = floor((wisdom - 10) / 2);
    this->intMod = floor((intelligence - 10) / 2);
    this->chaMod = floor((charisma - 10) / 2);

    this->skillPoints = 0;
    this->statPoints = 0;

    this->hpMax = 5 + conMod;
    this->hp = hpMax;
    this->staminaMax = 5 + strMod;
    this->stamina = staminaMax;
    this->damageMin = level + dexMod;
    this->damageMax = level + strMod;
    this->armor, shield = 0;
    this->armorClass = 10 + armor + shield;
}

void Character::statMods() {
    this->strMod = floor((strength - 10) / 2);
    this->dexMod = floor((dexterity - 10) / 2);
    this->conMod = floor((constitution - 10) / 2);
    this->wisMod = floor((wisdom - 10) / 2);
    this->intMod = floor((intelligence - 10) / 2);
    this->chaMod = floor((charisma - 10) / 2);

    this->hpMax = 5 + conMod;
    this->hp = hpMax;
    this->staminaMax = 5 + strMod;
    this->stamina = staminaMax;
    this->damageMin = level + dexMod;
    this->damageMax = level + strMod;
    this->armor, shield = 0;
    this->armorClass = 10 + armor + shield;
}

void Character::getName() {
    std::cout << "Enter you name:\n>";
    getline(std::cin, name);
}

void Character::statDisplay() {
    std::cout << "= Character Sheet =" << std::endl;
    std::cout << "= Name: " << this->name << std::endl;
    std::cout << "= Level: " << this->level<< std::endl;
    std::cout << "= Exp: " << this->exp << std::endl;
    std::cout << "= Exp to next level: " 
                       << this->expReq << std::endl;
    std::cout << std::endl;
    std::cout << "= Strength: "<< this->strength << 
                       " - " <<this->strMod << std::endl;
    std::cout << "= Dexterity: " << this->dexterity 
         << " - " << this->dexMod << std::endl;
    std::cout << "= Constitution: " << this->constitution 
    << " - " << this->conMod << std::endl;
    std::cout << "= Intelligence: " << this->intelligence 
    << " - " << this->intMod << std::endl;
    std::cout << "= Wisdom: " << this->wisdom 
    << " - " << this->wisMod << std::endl;
    std::cout << "= Charisma: " << this->charisma << 
    " - " << this->chaMod << std::endl;
    std::cout << std::endl;
    std::cout << "= HP: "<< this->hp << 
    "/" << this->hpMax << std::endl;
    std::cout << "= Stamina: " << this->stamina 
    << "/" << this->staminaMax << std::endl;
    std::cout << "= Damage: " << this->damageMin 
    << " - " << this->damageMax << std::endl;
    std::cout << "= Armor Rating: " << this->armorClass << std::endl;
    std::cout << std::endl;
}

void Character::levelUp() {
    this->exp = 0;
    int levelChoice;
    std::cout << "Pick a level:\n1: Warrior\n2: Rogue\n3: Magic User\n>";
    std::cin >> levelChoice;
    switch(levelChoice) {
        case 1:
            this->warriorLvl++;
            this->strength += 2;
            this->constitution++;
            this->dexterity -= 2;
            this->intelligence--;
            inventory.push_back(copperLongsword.GetDispName());
            break;
        case 2:
            this->rogueLvl++;
            this->dexterity += 2;
            this->charisma++;
            this->strength -= 2;
            this->constitution--;
            break;
        case 3:
            this->magicUserLvl++;
            this->intelligence += 2;
            this->wisdom++;
            this->constitution -= 2;
            this->charisma--;
            break;
    }
    std::cout << "Pick a stat to increase:\n1: 
    Strength\n2: Dexterity\n3: Constitution\n4: Intelligence\n5: 
    Wisdom\n6: Charisma\n>";
    std::cin >> levelChoice;
    switch(levelChoice) {
        case 1:
            this->strength++;
            break;
        case 2:
            this->dexterity++;
            break;
        case 3:
            this->constitution++;
            break;
        case 4:
            this->intelligence++;
            break;
        case 5:
            this->wisdom++;
            break;
        case 6:
            this->charisma++;
            break;
    }
    std::cout << "Would you like to increase a second stat?
    \n*Warning you must also decrease a stat*\n1: Yes\n2: No\n>";
    std::cin >> levelChoice;
    switch(levelChoice) {
        case 1:
            std::cout << "Pick a second stat to 
            increase:\n1: Strength\n2: Dexterity\n3: 
            Constitution\n4: Intelligence\n5: Wisdom\n6: Charisma\n>";
            std::cin >> levelChoice;
            switch(levelChoice) {
                case 1:
                    this->strength++;
                    break;
                case 2:
                    this->dexterity++;
                    break;
                case 3:
                    this->constitution++;
                    break;
                case 4:
                    this->intelligence++;
                    break;
                case 5:
                    this->wisdom++;
                    break;
                case 6:
                    this->charisma++;
                    break;
            }
            std::cout << "Pick a stat to decrease:\n1: 
            Strength\n2: Dexterity\n3: Constitution\n4: 
            Intelligence\n5: Wisdom\n6: Charisma\n>";
            std::cin >> levelChoice;
            switch(levelChoice) {
                case 1:
                    this->strength--;
                    break;
                case 2:
                    this->dexterity--;
                    break;
                case 3:
                    this->constitution--;
                    break;
                case 4:
                    this->intelligence--;
                    break;
                case 5:
                    this->wisdom--;
                    break;
                case 6:
                    this->charisma--;
                    break;
            }
            break;
        case 2:
            break;
    }
    this->level = warriorLvl + rogueLvl + magicUserLvl;
    this->expReq = (50/3)*(pow(level, 3) - 
                       6*pow(level, 3) + (17*level) - 11);
    player.statMods();
}

class Room {
    public:
        std::string roomName, roomNorth, roomEast, roomWest, roomSouth;
        void roomFunction();
};

class Game {
    public:
        Game();
        virtual ~Game();

        void mainMenu();
        void travel();

        inline bool getPlaying() const { return this->playing; }
    private:
        int choice;
        bool playing;
};

Game::Game() {
    choice = 0;
    playing = true;
}

Game::~Game() {

}

void Game::mainMenu() {
    std::cout << "0: QUIT\n1: North\n2: East\n3: 
                        South\n4: West\n5: Stats\n6: Inventory\n>";
    std::cin >> choice;
    switch(choice) {
        case 0:
            this->playing = false;
            break;
        case 1:
            player.yPos += 0.1;
            break;
        case 2:
            player.xPos += 0.1;
            break;
        case 3:
            player.xPos -= 0.1;
            break;
        case 4:
            player.yPos -= 0.1;
            break;
        case 5:
            player.statDisplay();
            break;
        case 6:
            printVec(inventory);
            break;
    }
}

void Game::travel() {

}

The code above is for my MUD game, but when I run it, I get:
cd "/usercode/" && g++ main.cpp -o main && 
"/usercode/"main
/usr/bin/ld: /tmp/ccaICDEk.o: in function `__static_initialization_and_destruction_0(int, int)':
main.cpp:(.text+0x1642): undefined reference to `Item::Item(std::__cxx11::basic_string<char, 
     std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, 
int, int, int, int, int, int, int, bool)'
collect2: error: ld returned 1 exit status 

It seems to be a undefined reference error, but I don't know how to fix it. Any help would be appreciated.

What I have tried:

Google-ing, tome of C++ knowledge. I already looked through the albeit limited sites I have at my disposal.
Posted
Updated 12-Sep-23 11:51am
v2
Comments
Richard MacCutchan 11-Sep-23 3:14am    
And you will continue to get such errors until you spend time learning C++ from a proper tutorial. The code above looks like it was just thrown together without any thought of proper structure.

I'll take a stab at it and say that you're trying to call the Item constructor with the wrong parameters.

You have as your constructor parameters;
C++
Item(std::string Name, std::string material,std::string ItemDesc, int DatabaseID, int ItemType, int Attack, int Defense, int GoldValue, int Stack, int MaxStack, bool Stackable);

and you call it with;
C++
Item copperLongsword("Longsword", "Copper", "A longblade made of dull copper", 1, Weapon, 1, 0, 1, 1, 1, false);

Your calling with ItemType as an enum and the constructor is expecting an int.
 
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Comments
merano99 10-Sep-23 19:40pm    
It gets worse ...
Apparently, the questioner does not read the answers, or not correctly. I had already here
https://www.codeproject.com/Questions/5368041/How-to-fix-item-declaration-problem
written the following:
"ItemType cannot be the type and the name of a variable at the same time."
Mike Hankey 10-Sep-23 19:46pm    
You can lead a horse to water but you can't make him drink.
merano99 11-Sep-23 3:03am    
Top! Yes, that's exactly how it is. I'll remember that saying. You get +5
There are a few problems. Mike mentioned one. Also, the parameterized constructor should have its arguments declared slightly different than they are. I will list them one per line so you can see them more clearly :
C++
Item( std::string name_
    , std::string material_
    , std::string itemDesc_
    , int databaseID_
    , ItemType type_    // <-- this one should be the enumerated type
    , int attack_
    , int defense_
    , int goldValue_
    , int stack_
    , int maxStack_
    , bool stackable_
    );
Also, this line of code is not correct in a class declaration :
C++
std::string displayName = Name + " " + material;
In a declaration it should be :
C++
std::string displayName;
You should be more careful with your variable names. Avoid naming arguments the same as your class' members and methods.

ETA: I just realized I named several arguments the same are your members. This was out of habit because I never, ever name members starting with lower case letters, except the "m_" prefix which they almost always have. If not then they start with a capitalized letter. For this reason, I appended an underscore to them.

BTW - you are not running this code. You are compiling it. As it is, it won't compile so you can't run it yet.
 
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v3
Comments
merano99 11-Sep-23 3:15am    
I already tried to correct the code in his previous post with the same problem. see there.
Obviously you dear questioner do not read already given answers, or not correctly. I have various problems, also this already pointed out:
https://www.codeproject.com/Questions/5368041/How-to-fix-item-declaration-problem
Mike's saying "You can lead a horse to water but you can't make him drink." applies here fully and I refer to the already given hints by me and others.
 
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Comments
Richard MacCutchan 11-Sep-23 3:12am    
I have given him the link to C++ tutorials but he obviously cannot be bothered to actually learn the language, and believes that Google can answer his questions.
merano99 11-Sep-23 3:19am    
I have seen it, meanwhile several have tried to help. I give you 5 for your attempt, but have considerable doubt that this time it is useful.
Richard MacCutchan 11-Sep-23 3:26am    
Oh well, we can but try. I have a feeling the this person is going to be added to the list of "help vampires".
Brennon Nevels 11-Sep-23 6:35am    
First a few things:
1. I prefer werewolves.
2. Thank you all for your help but a lot of the stuff (such as the links you have posted) either my brain refuses to get a grasp upon the concept or I'm an idiot, I prefer the former.
3. I have, in fact, read the tutorials, but as Merano99 said I do not understand them and thus probably read them incorrectly.
merano99 11-Sep-23 10:22am    
If I understood correctly, my linked solution attempt was not accepted as a solution because it did not find its way into the brain? I hope that it was not due to an incorrect translation. It would have been clearly better if you had posted corrected code than to ask the same nonsense again as a new question.

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