Level-Up

**nickodonnell** · 10-01-2005

Alright, in order to make myself better with C++ I'm developing the basics for a text-based RPG (which if/when I get good enough, I'll probably use it to convert to a Windows app when I learn the language better).

First of all, thanks for all the help so far with the monster thing (another thread.)

Now, I've got something a little different. I better just show you the codes...

Code:

#include <iostream>
#include <string>
#include "levels.h"

using namespace std;

//global variables
int char_level=1;
int char_exp =0;
int classcount=0;
string char_class;
string char_name;
//global variables

void char_selection();

int main()
{
    if (char_exp<28)
    {
                    char_level==1;
    }
    else if ((char_exp<52) && (char_level==1))
    {
                    char_level++;
    }
    else if ((char_exp<165) && (char_level==2))
    {
         char_level++;
    }
    
    cout<<"*Warrior*\n";
    cout<<"Warriors are strong, fierce.  They focus on physical fighting.\n\n";
    cout<<"*Mage*\n";
    cout<<"Mages are wise, powerful.  They use magic to win.\n\n";
    cout<<"*Rogue*\n";
    cout<<"Rogues are quick, witty.  They are more balanced.\n\n";

    level character;

    while (classcount<1)
    {
          cout<<"Choose your class --> ";
          cin>>char_class;
          cin.ignore();
          if ((char_class=="Warrior") || (char_class=="warrior"))
          {
                                      classcount++;
            switch(char_level)
            {
                         case 1:
                              character.strength(7);
                              character.intelligence(1);
                              character.defense(6);
                              character.health(130);
                              character.mana(4);
                              break;
                         case 2:
                              character.strength(10);
                              character.intelligence(3);
                              character.defense(9);
                              character.health(150);
                              character.mana(7);
                              break;
                         case 3:
                              character.strength(14);
                              character.intelligence(5);
                              character.defense(11);
                              character.health(165);
                              character.mana(10);
                              break;
            }
          }
          else if ((char_class=="Mage") || (char_class=="mage"))
          {
                                   classcount++;
            switch(char_level)
            {
                                      case 1:                
                                           character.strength(2);
                                           character.intelligence(20);
                                           character.defense(2);
                                           character.health(100);
                                           character.mana(30);
                                           break;
                                      case 2:
                                            character.strength(3);
                                            character.intelligence(25);
                                            character.defense(4);
                                            character.health(125);
                                            character.mana(40);
                                            break;
                                      case 3:
                                            character.strength(6);
                                            character.intelligence(32);
                                            character.defense(7);
                                            character.health(155);
                                            character.mana(55);
                                            break;
            }
          }
          else if ((char_class=="Rogue") || (char_class=="rogue"))
          {
                                    classcount++;
            switch(char_level)
            {          
                       case 1:      
                           character.strength(5);
                           character.intelligence(8);
                           character.defense(5);
                           character.health(200);
                           character.mana(6);
                           break;
                       case 2:
                           character.strength(7);
                           character.intelligence(11);
                           character.defense(8);
                           character.health(220);
                           character.mana(10);
                           break;
                        case 3:
                           character.strength(10);
                           character.intelligence(16);
                           character.defense(10);
                           character.health(235);
                           character.mana(14);
                           break;
              }
            }
            else
            {
                cout<<"\nThat is not a valid class.\n\n";
            }
    }
    cout<<"Okay, now what is your name?\n";
    cout<<"Name: ";
    cin>>char_name;
    cin.ignore();
    
    cout<<"\nName: "<<char_name<<endl;
    cout<<"Strength: "<<character.displaystrength()<<endl;
    cout<<"Intelligence: "<<character.displayintelligence()<<endl;
    cout<<"Defense: "<<character.displaydefense()<<endl;
    cout<<"Health: "<<character.displayhealth()<<endl;
    cout<<"Mana: "<<character.displaymana()<<endl;
    cout<<"Exp: "<<char_exp<<endl;
    
    cout<<"\n\n\n\tReady to level up?\n\n";
    char_exp=char_exp+30;;
    
    cout<<"\nName: "<<char_name<<endl;
    cout<<"Strength: "<<character.displaystrength()<<endl;
    cout<<"Intelligence: "<<character.displayintelligence()<<endl;
    cout<<"Defense: "<<character.displaydefense()<<endl;
    cout<<"Health: "<<character.displayhealth()<<endl;
    cout<<"Mana: "<<character.displaymana()<<endl;
    cout<<"Exp: "<<char_exp<<endl;
    
    cin.get();
}

Code:

class level
{
      public:
             level();
             ~level();
             
             void strength(int str);
             int displaystrength();
             void intelligence(int intel);
             int displayintelligence();
             void defense(int def);
             int displaydefense();
             void health(int hea);
             int displayhealth();
             void mana(int man);
             int displaymana();
             
      protected:
                int power;
                int magic;
                int vitality;
                int hitpoints;
                int magicpoints;
};

level::level() //construct
{}
level::~level() //destruct
{}
void level::strength(int str)
{
     power=str;
}
int level::displaystrength()
{
     return power;
}
void level::intelligence(int intel)
{
   magic=intel;
}
int level::displayintelligence()
{
    return magic;
}
void level::defense(int def)
{
     vitality=def;
}
int level::displaydefense()
{
    return vitality;
}
void level::health(int hea)
{
     hitpoints=hea;
}
int level::displayhealth()
{
    return hitpoints;
}
void level::mana(int man)
{
     magicpoints=man;
}
int level::displaymana()
{
    return magicpoints;
}

If you compile that, you'll see that you don't actually level up... and it's because I'm already out of the while loop. I need to simplify the code, maybe put the whole class and name selection on another .h file, and get the leveling up right. Any help?

**Thantos** · 10-01-2005

In your class you should make a levelup member function. It'll keep your code cleaner and help isolate the problem.

**nickodonnell** · 10-01-2005

Any tips on how I do that? I've only been programming for three days, so I'm not exactly familliar with the language yet. Also, eager to learn!

**Thantos** · 10-01-2005

I would definatly do a lot more reading before trying to get to far into game programming. When done right inheritance can make this stuff a lot easier.

Since you are new let me give you a big tip:
Don't use global variables. Yes they make things seem easier but its a bad practice to get into and it will come back to bite you.

When you are defining your classes try to keep a concept in mind: The object should know everything about itself. So you can have 1 hero object that knows what level it is, what class it is, what attributes it has, etc. Then all you have to do is call the levelup() member function which would be something like:

Code:

void heroes::levelup() {
  switch ( class ) // class would be a private member variable
  {
    case 0:  // warrior
      power += A;
      magic += B;
      vitality += C;
      hitpoints += D;
      magicpoints += E;
      break;
    case 1: // mage and repeat the above stuff
    case 2: // rogue and repeat
  }

**nickodonnell** · 10-01-2005

Thanks, yeah, I'm really getting into classes and inheritance. Thanks for the tips.

Edit: Just so I understand a little better...

Code:

class Stats
{
      public:
             //stuff
      protected:
                //stuff
      private:
              //stuff
}

class Hero : public Stats
{
      public:
             
      protected:
                
      private:
              
}

...in the Stats class I would define strength, defense, etc., and in the hero subclass I would define level_up() as well as the character's class attributes? Let's say I save this as stats.h ; how would the player choose his/her character's class?

Oh, and I'm not really making a game, I'm doing this because hands-on actually coding helps me udnerstand a ton more than just reading.

**cboard_member** · 10-01-2005

You forgot the little ';' at the end of your class defs

Code:

class Stats
{
	public:

	protected:

	private:

};

Yes it sounds like a reasonable idea to me. For example:

Code:

class Stats
{
	public:
		Stats () {}
		~Stats () {}
  
	protected:
		unsigned int hp;
		unsigned int mp;
		unsigned int str;
		unsigned int def;
		unsigned int atk;
		// etc...
};

class Hero :public Stats
{
	public:
		Hero () {}
		~Hero () {}

		void LevelUp ();
	private:
		// hero class info
		// not too sure what that'd be though :)
};

Yep you probably knew that, just seeing how much of C++ I remember

**nickodonnell** · 10-01-2005

OK sounds good. I know it may be overdoing it a little, but is there anyway I could do a subclass of class Hero for each character class? (hehe, confusing)

Like this:

Code:

class Stats:
 class Hero
   class Warrior
   class Rogue
   class Wizzard
 class Monster
   ...

Could I still do that, and make the level_up() function work with each character class? And if I did that, there would be no need for the whole warrior.strength(x) thing; I could just store the values in unsigned variables (like ahluka had), making it alot easier to change them.

**Jeremy G** · 10-02-2005

Code:

class person:
     class Heros:
          class Warrior
          class Rogue
          class Wizzard
     class Monster:
          class orc
          class goblin
          ....

Classes with : should be abstract interfaces, that way you dont have to develop code in your game area for handling specific types of classes.

So your class person should have virtual functions like levelup, getmeleebonus, getmagicbonus, getracialbonus, getspecialpower etc. Then in your classes at the end of the line, is where you actually give the functions code. The code will be specific to the type of class it is. For instance Wizzards wouldnt get melee bonuses, so you might just define the

Code:

function Wizzard::getmeleebonus() { return 0; }

etc.

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