SDL and xcode5 - SDL in different classes - c++

Question

I got following problem:
I got my main c++ file, in which i have included
#include <SDL2/SDL.h>
After having written some SDL c++ code, then i want to split up my program into different classes.
the problem is that i try to say:
#include <SDL2/SDL.h>
in the new "Engine" class but i doesn't seem like it is including the SDL.
Im using xcode 5.
The SDL frameworks works fine if i write the code in my main.cpp
Engine class:
#include "Engine.h"
#include <SDL2/SDL.h>
using namespace std;
class Engine
{
SDL_Window *window = NULL;
SDL_Surface *screenSurface = NULL;
public:
Engine();
bool init();
bool loadMedia();
void close();
}
Im still on the drawing board with what kind of classes i need.
This is Engine.h
#ifndef __Engine4__Engine__
#define __Engine4__Engine__
#include <iostream>
#include <SDL2/SDL.h>
class Engine
{
}
#endif /* defined(__Engine4__Engine__) */
My xcode5 wont come with suggestions when i write SDL_

Answer 1

The issue is that you have not created Engine.h and are trying to reference it when it doesnt exist. The issue is not with SDL, rather that you are unsure how to create a class in c++.
You need to create both Engine.h and Engine.cpp
Engine.h will look something like
#ifndef ENGINE_H
#define ENGINE_H
#include <SDL2/SDL.h>
class Engine
{
public:
Engine();
bool init();
bool loadMedia();
void close();
private:
SDL_Window *window;
SDL_Surface *screenSurface;
};
#endif
and then you need to create a Engine.cpp file that will look like
#include "Engine.h"
Engine::Engine() :
window(nullptr),
screenSurface(nullptr)
{
}
// Rest of code from header file
See more about creating classes in C++ here.