How to keep a number from going into negatives?

ID:142187
 
Jul 28 2008, 4:02 pm
Code:
        Attack(mob/M in get_step(usr,dir))
            set category = "Combat"
            var/num = usr.str
            num -= M.def
            if(usr.dead == 1)
                usr << "<b><font color = green>You cannot attack because you are dead.</b></font>"
            else
                if(M == usr)
                    usr << "<font color = green>You cannot attack yourself!</font>"
                else
                    var/random = rand(1,3)
                    if(random == 1)
                        flick("Punch Left",usr)
                        view()<<sound('sfxpunch1.wav')
                        M.powerlevel -= num
                        s_damage(M, num)
                        M.Updatehp()
                        deathcheck()
                    if(random == 2)
                        flick("Punch Right",usr)
                        view()<<sound('sfxpunch2.wav')
                        M.powerlevel -= num
                        s_damage(M, num)
                        M.Updatehp()
                        deathcheck()
                    if(random == 3)
                        flick("Kick",usr)
                        view()<<sound('sfxkick1.wav')
                        M.powerlevel -= num
                        s_damage(M, num)
                        M.Updatehp()
                        deathcheck()


Problem description:

Heres a simple melee code I made that uses strength and defense var's.

It works perfect and everything but the only problem is that if the persons defense is higher then the others strength,you'll end up doing negative damage.

So my question is,how would I make it so if your doing negative damage,it'll round off to 1?

I'd much rather be doing 1 dmg at least then -573 lol :P

Jul 28 2008, 4:03 pm (Edited on Jul 28 2008, 4:40 pm)
Look up the min() function.

[Edit]
...err, for this is should be max(), but you already have that sorted out.
Jul 28 2008, 4:15 pm
In response to Popisfizzy
Popisfizzy wrote:
Look up the min() function.
Ok,it seems to make sense,but I'm not sure whether I just put it into the lines in of what I made,after editing it of course,or making a proc to check if the num is under 0?
Jul 28 2008, 4:18 pm
In response to Kinotsu
min(0, damage)

You can also use max() to do the same(i usually use max)

max(0, damage)

or if you want to be fancy.

max(0, min( M.hp, damage))

That limites the damage to a minimum of 0 and a maximum of M's hp.
Jul 28 2008, 4:30 pm
In response to Axerob
Axerob wrote:
min(0, damage)

You can also use max() to do the same(i usually use max)

max(0, damage)

or if you want to be fancy.

max(0, min( M.hp, damage))

That limites the damage to a minimum of 0 and a maximum of M's hp.
Oh wow,thanks alot :]

I took your advice and started to make my own game from scratch,and wow,it feels pretty good and a sense of accomplishment when you write your own stuff and see how that it actually works the way you wanted to.

Still a learning coder xD

But its a start.
Jul 28 2008, 4:37 pm
In response to Kinotsu
That's always a good thing. If you need any help with it, let me know.
Jul 28 2008, 5:11 pm
In response to Axerob
Hmmm....it didn't seem to work for me that well,so I just ended up making this.
if(damage < 1)
    damage = 1


Thanks alot though,you helped me get an idea of a different possible way to do the same effect. :]
Jul 28 2008, 5:12 pm
In response to Kinotsu
damage = max(0, damage)