help with inheritance

[Juicej]

for sum reason i keep getting a bunch of errors, in format of inheritance which to me is correct. i followed straight from the book. Can someone please help me?

// snake class inheriting from class texture and collisionDetection
class Snake : public class Texture, public class CollisionDetection
{
    int snakePos;

    public:
        void drawSnake();
        void setSnakePos();
        void eatFruit();

};

// fruits class inheriting public members of class texture
class Fruits : public class Texture
{
    public:
    void drawFruit();
    void setFruitColor();
    void randFruitPos();
};

// map class inheriting protected and public members of class texture
class Map : protected Texture
{
    public:
    void drawSurface();
    void drawBorders();
    void drawCubes(double x, double y, double z);
    void drawObstacles();
};

class Texture
{
    GLuint snakeTexture[];
    GLuint fruitTexture[];
    GLuint gridTexture[];

protected:
        GLuint loadTexture();
        GLuint change3DEnvironment();
public:

    friend GLuint setSnakeTexture();
    friend GLuint setgridTexture();
    friend GLuint setFruitTexture();

};

class CollisionDetection : public class Map, public class Fruits
{
    void snakeNObstacle();
    void snakeNCubes();
    void snakeNFruits();
};

errors:
||=== Build: Debug in project c++ (compiler: GNU GCC Compiler) ===|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|75|error: expected class-name before 'class'|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|75|error: expected '{' before 'class'|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|75|error: expected unqualified-id before ',' token|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|75|error: expected unqualified-id before 'public'|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|87|error: expected class-name before 'class'|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|87|error: expected '{' before 'class'|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|93|error: multiple types in one declaration|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|105|error: redefinition of 'class Texture'|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|87|error: previous definition of 'class Texture'|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|122|error: expected class-name before 'class'|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|122|error: expected '{' before 'class'|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|122|error: expected unqualified-id before ',' token|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|122|error: expected unqualified-id before 'public'|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.cpp|7|error: aggregate 'Snake Snakes' has incomplete type and cannot be defined|
||=== Build failed: 14 error(s), 0 warning(s) (0 minute(s), 0 second(s)) ===|

[cwr2k]

You need to remove the "class" keyword from the classes you inherit from.

// snake class inheriting from class texture and collisionDetection
class Snake : public Texture, public CollisionDetection
{
    int snakePos;

    public:
        void drawSnake();
        void setSnakePos();
        void eatFruit();

};

// fruits class inheriting public members of class texture
class Fruits : public Texture
{
    public:
    void drawFruit();
    void setFruitColor();
    void randFruitPos();
};

// map class inheriting protected and public members of class texture
class Map : protected Texture
{
    public:
    void drawSurface();
    void drawBorders();
    void drawCubes(double x, double y, double z);
    void drawObstacles();
};

class Texture
{
    GLuint snakeTexture[];
    GLuint fruitTexture[];
    GLuint gridTexture[];

protected:
        GLuint loadTexture();
        GLuint change3DEnvironment();
public:

    friend GLuint setSnakeTexture();
    friend GLuint setgridTexture();
    friend GLuint setFruitTexture();

};

class CollisionDetection : public Map, public Fruits
{
    void snakeNObstacle();
    void snakeNCubes();
    void snakeNFruits();
};

You're also declaring empty arrays as class data members. That's not going to work out for you. Use a pointer instead. C++ isn't Java, you really need to learn it before you start messing with OpenGL.

[Juicej]

thanks alot.. its a school project, im not supposed to implement any of these functions until i kno how to... i tried that before.. i get this:

||=== Build: Debug in project c++ (compiler: GNU GCC Compiler) ===|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|75|error: expected class-name before ',' token|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|76|error: expected class-name before '{' token|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|88|error: expected class-name before '{' token|
C:\Users\Juice\Documents\C++ Assignments\project c++\main.h|97|error: expected class-name before '{' token|
||=== Build failed: 4 error(s), 0 warning(s) (0 minute(s), 4 second(s)) ===|

[xismn]

Move your Texture class (lines 32 - 47) in between lines 1 and 2.

[Juicej]

xisman right before you suggested this.. i changed the positions of the classes.. all the base classes i put them at the top.. texture was first in this list.. i went down to two errors.. both saying this "expected class-name before '{' token|".. now i tried your suggestion n now i came up with 8 errors saying the same thing.. its funny im tryin to figure it out.. ca you?

[xismn]

Unless you post your current code, and the actual errors you're having, I'm in the dark.