Hi,
This is my first post here, so I feel like I should start by saying that of all the books I have bought so far on the subject of game development (a nice handful), GC3 has been far and away the best one (and I'm only half way through!).
Anyway, I ran into some trouble with the random number code tonight and thought I would post my solution in case anyone else goes through the same confusion I did
I was poking around in the CRandom class mentioned in the book and provided in the source code, and decided to try grabbing some floats using the method that's documented as new for the 3rd edition:
As I understand it, by catching r as an int and not an unsigned int, values > 2^31 will cause r to become the negative of INT_MAX, which in turn will cause the function to return 0.0000 instead of a value from 0 to .5 (leaving you with either 0 or a float >= .5 and <=1). To fix the issue I made r an unsigned int and got rid of the +0.5 at the end like so:
Hope this helps someone,
Soufi
This is my first post here, so I feel like I should start by saying that of all the books I have bought so far on the subject of game development (a nice handful), GC3 has been far and away the best one (and I'm only half way through!).
Anyway, I ran into some trouble with the random number code tonight and thought I would post my solution in case anyone else goes through the same confusion I did
I was poking around in the CRandom class mentioned in the book and provided in the source code, and decided to try grabbing some floats using the method that's documented as new for the 3rd edition:
As I understand it, by catching r as an int and not an unsigned int, values > 2^31 will cause r to become the negative of INT_MAX, which in turn will cause the function to return 0.0000 instead of a value from 0 to .5 (leaving you with either 0 or a float >= .5 and <=1). To fix the issue I made r an unsigned int and got rid of the +0.5 at the end like so:
Hope this helps someone,
Soufi
