Thread: global variables - okay sometimes...?

>Could we have the source?

heh.. not in it's current state i'll have to clean it up some, and maybe comment it a bit... i'm just finishing up the scoring and everything, so i'll try to post it later today.

//edit: source is up.. you can get it from that thread where people post their best games (in the gaming forum)

Originally posted by Frobozz
(I'm using #define ).

Why not use const?

Good question... I'm just using it because I've seen it used a lot in a friend's code and also in my professor's code (even though I haven't taken his class yet).

Is const better? Does #declare allow stuff to be used regardless of data type?

when you use #define such as in the form
#define PI 3.1415926
then PI will be treated as though it is a float.
PI could also be declared as
const float PI = 3.1415926

Not much difference, though one is a const global variable the other is a #define statement

Later,

Originally posted by WebmasterMattD
when you use #define such as in the form
#define PI 3.1415926
then PI will be treated as though it is a float.
PI could also be declared as
const float PI = 3.1415926

Not much difference, though one is a const global variable the other is a #define statement

Later,

Actually, it would be a double, not a float.

#define doesn't obey scope rules, so you shouldn't use it much. There are only very few places you should have to use #define, and this is not one of them.