Question

I have a little problem, i probably included the class files wrongly, since i can’t acces members of the enemy class. What am i doing wrong?
my cpp for class

#include "classes.h"

class Enemy
{
 bool alive;
 double posX,posY;
 int enemyNum;
 int animframe;
public:
Enemy(int col,int row)
{
    animframe = rand() % 2;
    posX = col*50;
    posY = row*50;
}

Enemy()
{

}
void destroy()
{
    alive = 0;
}
void setposX(double x)
{x = posX;}
void setposY(double y)
{y = posY;}
};

my header for class:

class Enemy;

my main:

#include "classes.h"
Enemy alien;
int main()
{
    alien. // this is where intelisense tells me there are no members
}

Answer 1

Your main file will only see what you wrote in the header, which is that Enemy is a class. Normally, you’d declare your whole class with fields and method signatures in the header files, and provide implementations in the .cpp file.

classes.h:

#ifndef _CLASSES_H_
#define _CLASSES_H_
class Enemy
{
    bool alive;
    double posX,posY;
    int enemyNum;
    int animframe;
public:
    Enemy(int col,int row);
    Enemy();
    void destroy();
    void setposX(double x);
    void setposY(double y);
};
#endif

classes.cpp:

#include "classes.h"
//....
void Enemy::destroy(){
    //....
}
//....