Thread: Changing random #'s

I'm trying to make a text RPG and I want weapons to do a range of damage. For example, a short sword would do 2-6 damage. To do this, I want to use 2 variables, W & WV. W is for weapon and WV is for weapon variance (or variability, or some other word starting with v...). This is my basic damage formula for a weapon dealing 2-6 damage:

code:
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int damage();
int w,wv;
w=2
wv=4;

int damage()
{
int dam;
dam=srand(wv)+w;//this is the line I'm not sure of
return dam;
}
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Thats how I want to do it, generate a number from 0-4, then add 2 to it, thus dealing 2-6 damage. I've gotten something like that to work, its just that the number won't change each time it is called. I want to do a similar thing for thac0, but I'll do that once I know how to make random numbers that change each time they are called.

Thanks,

napKIN

Thanks, but how do you tell rand() to generate a number up to 4?

napKIN

Would this work then?

code:
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
int damage();
int w,wv;
w=2
wv=4;

int damage()
{
int dam;
dam=rand()%wv+w;
return dam;
}
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Thanks for the help,

napKIN

heh, good idea, I'll do that when I get home (I'm at school).

Thanks alot,

napKIN

first, include <ctime> for time function. anywhere in your program, put this line once: srand(TIME(NULL)); . Then here is the formula for random numbers: dam=low + rand() % (high-low+1). so if you wanted between 2 and 6, with w=2, wv=6:

Code:

dam = w + rand() % (wv - w + 1);

that will make a new random number each time, between 2 and 6.

Thanks alot, I've been stuck on this FOREVER.

napKIN