using struct in c++
Author
I am going to use struct''s in my game and am wondering how to input into the struct form my main function? ould you help?
anyone??
here is some psuedo code
i dont know if this is what your looking for, but if it isnt, i need some more detail on what you want.
The Undead shall rule forever.
[edited by - battering ram on August 26, 2002 9:10:23 PM]
struct foo_t { float x,y,z;}foo_t foo;int main(){ foo.x = 10; foo.y = 5; foo.z = 2; return 0;} i dont know if this is what your looking for, but if it isnt, i need some more detail on what you want.
The Undead shall rule forever.
[edited by - battering ram on August 26, 2002 9:10:23 PM]
the only difference(that im aware of) in structs between C++ and C is that C++ allows structures to have member functions, anyone that knows that im wrong please school me, ignorance isnt always bliss
You really should get a book or find some tutorials before you try to make a game. I think you''ll have a lot of problems if you don''t understand the language, and structs are one of the most basic parts. There are a lot of great books out there; you should read one.
C++ gave structs more power, the ability to have constructors, destructors, and i think it can encapsulate functions, but if you want all of that in a struct, you'd be better off with a class.
the . operator is used even with C++ classes.
However, the -> operator is used with structs and classes when the instance is a POINTER to the struct/class.
EDIT: i forgot to explain ::
The :: operator is used in defining a function inside a class.
There are two ways to define a function in a class
1st:
class Sprite {
void Draw() {};
}
2nd:
class Sprite {
void Draw();
}
Sprite::Draw() {
DoSomething()
}
The :: is used to define functions externally from the class in a cpp file, while the class and the declaration are inside the .h file
The Undead shall rule forever.
[edited by - battering ram on August 26, 2002 10:30:02 PM]
[edited by - battering ram on August 26, 2002 10:40:58 PM]
the . operator is used even with C++ classes.
class Foo { float x,y,z;}Foo fool;int main(){ fool.x = 10;return 0;} However, the -> operator is used with structs and classes when the instance is a POINTER to the struct/class.
Foo *fool;fool->x = 10; EDIT: i forgot to explain ::
The :: operator is used in defining a function inside a class.
There are two ways to define a function in a class
1st:
class Sprite {
void Draw() {};
}
2nd:
class Sprite {
void Draw();
}
Sprite::Draw() {
DoSomething()
}
The :: is used to define functions externally from the class in a cpp file, while the class and the declaration are inside the .h file
The Undead shall rule forever.
[edited by - battering ram on August 26, 2002 10:30:02 PM]
[edited by - battering ram on August 26, 2002 10:40:58 PM]
uhhhh.... batteringram you declared your class wrong... it should be...
class Foo{
public:
float x,y,z;
};
Foo fool;
int main()
{
fool.x = 10;
return 0;
}
note that the differences are a semicolon at the end of class and the declaration that float x, y, z are public and not protected which is the class default.
class Foo{
public:
float x,y,z;
};
Foo fool;
int main()
{
fool.x = 10;
return 0;
}
note that the differences are a semicolon at the end of class and the declaration that float x, y, z are public and not protected which is the class default.
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