Unresolved external or linker error - linker

Question

I have posted my 2 source files. I've been trying to find out whats wrong for the last 6 hours but I cannot find the solution to these errors:
1>Mainirk.obj : error LNK2019: unresolved external symbol "public: __thiscall pokemon::pokemon(int,int,int)" (??0pokemon##QAE#HHH#Z) referenced in function "void _cdecl `dynamic initializer for 'enemy''(void)" (??_Eenemy##YAXXZ)
1>C:\Users\Taylor\Documents\Visual Studio 2010\Projects\irkling\Debug\irkling.exe : fatal error LNK1120: 1 unresolved externals
Mainirk.cpp and stats.h
//mainirk.cpp:
#include <iostream>
#include <string>
#include <windows.h>
#include "include/irrKlang.h"
#include <conio.h>
#include "stats.h"
#pragma comment(lib, "irrKlang.lib")
using namespace std;
using namespace irrklang;
int choose();
void charmander1();
void bulbasaur1();
void squirtle1();
void yourpokemon();
void enemypokemon();
void battle();
void bchoice();
void aichoice();
int axisx;
int axisy;
void grid();
void events();
void attack();
void defend();
int x;
int y;
int z;
int m;
int n;
void win();
void lose();
void results();
void talk1();
void travel();
int walk;
void refresh();
void enemy1();
int achoice;
pokemon enemy(1,2,1);
pokemon charmander(25,3,25);
pokemon bulbasaur(20,4,20);
pokemon squirtle(30,2,30);
int main()
{
choose();
yourpokemon();
cout<<"\nPress any key to continue.";
_getch();
system("cls");
cout<<"********************************";
cout<<"\nEverything suddenly goes dark.\n";
cout<<"\n\nYou feel a dark presense enter the area.\n";
cout<<"Your rival Chuy walks in and challenges you to a battle...\n\n\n";
cout<<"................==\n";
cout<<".............../´¯/)\n\n";
cout<<"............/....//\n\n";
cout<<".........../....//\n\n";
cout<<"...../´¯/..../´¯<\n\n";
cout<<".././.../..../..../.|\n\n";
cout<<"(.(....(....(..../.)..)\n\n";
cout<<".<......(...(.....</.../\n\n";
cout<<"..<.................<\n\n";
cout<<"....<..............<\n\n";
cout<<"......<.............<\n\n";
cout<<"\n________________________________\n";
cout<<"Press any key to continue..\n\n";
ISoundEngine* se = createIrrKlangDevice();
se->play2D("Red.mp3");
_getch();
system("cls");
do
{
battle();
aichoice();
_getch();
system("cls");
}
while (y>0 && m>0);
cout<<"Battle Over\n";
results();
refresh();
_getch();
system("cls");
talk1();
_getch();
do
{
grid();
travel();
events();
system("cls");
}
while (axisx!=100);
return 0;
}
int choose()
{
cout<<"Choose your pokemon!!!\n\n";
cout<<"********************************\n\n";
cout<<" Charmander has "<<charmander.hp()<<" hp and "<<charmander.dmg()<<" damage.\n\n";
cout<<" Bulbasaur has "<<bulbasaur.hp()<<" hp and "<<bulbasaur.dmg()<<" damage.\n\n";
cout<<" Squirtle has "<<squirtle.hp()<<" hp and "<<squirtle.dmg()<<" damage.\n\n";
cout<<"--------------------------------\n\n";
cout<<"Type [a] to choose Charmander\n\n";
cout<<"Type [b] to choose Bulbasaur\n\n";
cout<<"Type [c] to choose Squirtle\n\n";
char answer;
cin>>answer;
if (answer == 'a'||answer == 'A')
{
answer = 'a';
}
if (answer == 'b'||answer == 'B')
{
answer = 'b';
}
if (answer == 'c'||answer == 'C')
{
answer = 'c';
}
switch (answer)
{
if (answer =='a')
{
case 'a': charmander1();
enemy = squirtle;
y= charmander.hp();
z= charmander.dmg();
x= charmander.bhp();
}
if (answer == 'b')
{
case 'b': bulbasaur1();
enemy = charmander;
y = bulbasaur.hp();
z = bulbasaur.dmg();
x= bulbasaur.bhp();
}
if (answer == 'c')
{
case 'c': squirtle1();
enemy = bulbasaur;
y = squirtle.hp();
z = squirtle.dmg();
x= squirtle.bhp();
}
}return 0;
}
void charmander1()
{
cout<<"You have chosen the Pokemon Charmander!!!\n";
cout<<"Charmander is a fire type!\n";
}
void bulbasaur1()
{
cout<<"You have chosen the Pokemon Bulbasaur!!!\n";
cout<<"Bulbasaur is a grass type!\n";
}
void squirtle1()
{
cout<<"You have chosen the Pokemon Squirtle!!!\n";
cout<<"Squirtle is a water type!\n";
}
void yourpokemon()
{
cout<<"HP is "<<y<<" and damage is "<<z;
}
void battle()
{
cout<<"\n\tStatus\t\t";
cout<<"\n-----------------------\n";
cout<<"Your Pokemon\tEnemy Pokemon\n";
cout<<"HP: "<<y<<"\t\tHP: "<<m<<"\n";
bchoice();
}
void bchoice()
{
cout<<"\n\nType 1 to attack or 2 to defend\n";
cin>>achoice;
if (achoice ==1)
{
attack();
}
else if (achoice ==2)
{
defend();
}
else
{
cout<<"Retype your choice"<<endl;
}
}
void attack()
{
m = m-z;
cout<<"\nYour Pokemon attacks!";
}
void defend()
{
cout<<"\nYour pokemon defends!";
}
void aichoice()
{
if (achoice ==1)
{
cout<<"\nThe enemy pokemon attacks!";
cout<<"\nPress any key to continue";
y = (y-n);
}
else if (achoice ==2)
{
cout<<"\nThe enemy pokemon defends!";
cout<<"\nPress any key to continue";
}
}
void win()
{
cout<<"You have won the battle!\n";
}
void lose()
{
cout<<"You have lose the battle!\n";
}
void results()
{
if (y>0 && m <= 0)
{
win();
}
else if (m>0 && y <= 0)
{
lose();
}
}
void talk1()
{
cout<<"These animals are merely pawns in a series that is about to unfold\n";
cout<<"If i were you, I would enjoy my last days alive\n";
cout<<"*Chuy walks away..*\n";
}
void travel()
{
cout<<"\nIt is time to travel\n";
cout<<"Type 1 to travel North\n";
cout<<"Type 2 to travel South\n";
cout<<"Type 3 to travel West\n";
cout<<"Type 4 to travel East\n";
cin>>walk;
if (walk ==1)
{
axisy++;
}
if (walk ==2)
{
axisy--;
}
if (walk ==3)
{
axisx--;
}
if (walk ==4)
{
axisx++;
}
}
void grid()
{
cout<< "location Coordinates: "<<axisx<<","<<axisy<<"\n";
}
void events()
{
if (axisx ==5 && axisy ==10)
{
battle();
}
}
void refresh()
{
m = enemy.bhp();
}
void enemy1()
{
m = enemy.hp();
n = enemy.dmg();
}
//stats.h
#include <iostream>
using namespace std;
class pokemon
{
int health, damage, basehp;
public:
pokemon (int,int,int);
int hp()
{
return (health);
}
int dmg()
{
return (damage);
}
int bhp()
{
return (basehp);
}
};

Answer 1

This is because you declared a constructor pokemon that takes 3 integer parameters, but did not provide its implementation. You could either provide it inline in the header
class pokemon
{
int health, damage, basehp;
public:
pokemon (int _health, int _damage, int _basehp)
: health(_health)
, damage(_damage)
, basehp(_basehp) {
}
// ...
};
or separately in the cpp file, like this:
pokemon::pokemon(int health, int damage, int basehp) {
// do your initialization here...
}