struct point
{
float x;
/* ... */
};
class game_object
{
public:
point position;
/* ... */
};
class game_ball : game_object
{
public:
void set_position ( float x, float y, float z );
/* ... */
};
class player
{
public:
game_ball sphere;
/* ... */
};
[/SOURCE]No Access To Public Variables?
Author
Hello everyone,
I am currently working on a small game to get more into OOP as well as to become more familiar with OpenGL. So I set up some structures and classes and already started with some implementations and everything is fine - except one error:
The following code shows how parts of my "game_object"-system is set up.
Now whenever I try to access the "position" variable of the "game_ball sphere" variable ( like this for example [inside the player class]: glTranslatef ( sphere.position.x, sphere.position.y, sphere.position.z ); ), I keep getting an error ( "No access to public element whose declaration was handled in the class 'game_object'..." ).
What is this error about and why can't I access this 'normal' and public "point position" variable?
It's because you used private inhertiance instead of public inheritance.
This:
class game_ball : game_object
should be:
class game_ball : public game_object
This:
class game_ball : game_object
should be:
class game_ball : public game_object
The problem is here:
class game_ball : game_object
Here you use private inheritance, what you want is this:
class game_ball : public game_object
edit:
almost in time ;)
class game_ball : game_object
Here you use private inheritance, what you want is this:
class game_ball : public game_object
edit:
almost in time ;)
Author
Thanks a lot. I knew it was something obvious.
Once again I have to say I hate my C++ book for not even letting me know about this...
Once again I have to say I hate my C++ book for not even letting me know about this...
Thats probably because a class content is private by default (and a struct content is public by default).
This topic is closed to new replies.
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