entitydistance vars

[cassius]

Heres another c noob question.

 

In c or c++ it seems you have to put a variable in front of EntityDistance, unlike BMax where

" if Entitydistance(a,B) will do

 

my question is can I use the same variable ( "dist" for example ) more than once without causing confusion?

 

I use EntityDistance many times in my game..

[Pixel Perfect]

In C you can do either really depending on what it is you are wanting to do:

 

For instance, if you want to store the value for some later point then you can assign a variable the value returned from EntityDistance as follows:

float dist = EntityDistance(Entity1,Entity2);

 

But if you just wanted to test the value with an if statement for example then there is no need for the variable, the return value is simply used in the comparision:

if(EntityDistance(Entity1,Entity2) <= 2.0)
{
... do something
}

 

 

With regard to re-use of the same variable, then yes, this is possible depending on the scope (life) of the variable, but not always desirable. It is generally better practice to scope your variables locally.

[cassius]

Ah good. I tried the second one you mentioned but got an error message. Must have been a syntax error. I am finding some of the error messages hard to figure in codeblocks.

Thanks again.