Calling an object in a function

I have had this problem which i keep coming back to, and i have to solve it somehow now :(

My Main function:

Code:

---

void main(){
Character Luke;
Luke.initialise;

battle();
}

---

My class:

Code:

---

class Character
{
 public:
    void initialise();
    int get_hp();
 private:
    int hp;

---

My function:

Code:

---

void battle(){
  Luke.get_hp();
};

---

however i get the nice problem that "Luke is undeclared in this function" (the 'battle' function).
I of course have several other functions which need to access "Luke.get_hp();" and other modules that i have in the class. So how can i get the "battle" function to be able to see that i have already created the object "Luke" and allow access to it?

btw, i think i need to somehow make the classes have a global scope. but i really cant think of a way to do that...

Why don't you just pass the object into the function? Try this for the new prototype.

Code:

---

void Battle( const Character &temp )
{
    temp.get_hp( );
}

---

Also in your main you call initialize without paranthesis. You need these because it is a function, remember.

thanks. only thing is now i get this error:

passing `const Character' as `this' argument of `int Character::get_hp()' discards qualifiers


now what does "discards qualifiers" mean? ive looked around, and havent found anything.

oh and yeah, i know i was missing the (), i just forgot to put them in when i typed it.

Remove the const keyword...

It's better to pass the address of the Character object to the function:

Code:

---

void battle(Character *C)
{
  C->get_hp();
}

In main:

battle(&Luke);

---

if you're gonna pass the Character to different functions, i would declare Luke on the heap

Code:

---

int main()
{
  Character* Luke = new Character;
  Luke->initialise();    // is initialize spelled wrong? lol

  battle(Luke);  // Luke is a pointer, passing the address
  return 0;
}

---

and use what monter had for the battle() function.

Quote:

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is initialize spelled wrong?

---

no, here in aus, we use "s" not "z" :)

and thanks for the help guys, i understand how to do it now :)
i just gotta put it together ;)