How to: Unlock a verb on a certain requirement?

ID:156046
 
Jan 9 2011, 6:03 am
Greetings,

I'm pretty new to BYOND programming, but I have lots of experience with other languages. But now I stumbled onto a problem, which I can't really solve by using the search or blue book.

Let's say I have the following code:

mob var HP = 250 fighting_knowledge = 10 verb punch(mob/M as mob in oview(1)) var damage = rand(1,3)*fighting_knowledge M.HP -= damage world << "Punch:[usr] hit [M] for [damage] HP" usr.fighting_knowledge += rand(0,1) verb double_punch(mob/M as mob in oview(1)) var damage = 2*rand(1,3)*fighting_knowledge M.HP -= damage world << "Double Punch:[usr] hits [M] for [damage] HP"

How could I unlock the "double_punch" verb for a user once he reached a certain amount of "fighting_knowledge" ?

I know it "works" with set invisibility = (number) but I wouldn't know how to continue with that.

Thank you,
JackSmoke
Jan 9 2011, 6:24 am
You could use something like this. Although it may not be the best way.

mob
     skills //not a var, a mob called skills.
          verb
               double_punch()
                    //your double punch code
     proc/CheckFightingSkills()
          if(src.fighting_knowledge > /* insert number here */)
               src.verbs += /mob/skills/verb/double_punch


Then you would call that proc everytime the user's fighting_knowledge increased. You may want some sort of identifier to the player, like usr << "You learned double punch!"
Jan 9 2011, 6:36 am
In response to Darkoro
Say, I have another question.
Let's say I'd add it like this:

<code> proc CheckFightingSkills() if(src.fighting_knowledge > 20) src.verbs += /mob/skills/verb/double_punch usr << "You learned Double Punch" </code>

and I don't want that message to appear every single time (that he learned the punch). Do I need a help-variable or is there an internal function to check if a user already has the verb?

'cause right now I'd need a variable like "dp_learned" and add that in so it'd be:

<code> proc CheckFightingSkills() if(src.fighting_knowledge > 20 && dp_learned == 0) src.verbs += /mob/skills/verb/double_punch usr << "You learned Double Punch" dp_learned = 1 </code>
Jan 9 2011, 6:39 am
In response to JackSmoke
I think there is a way to check if the verb is in a user's verb list, but i wouldn't know about that. It may have something to do with looping through the player's "verbs" list and checking if it matches the verb, or it may not.
Jan 9 2011, 6:46 am
In response to Darkoro
Hmm, then I'll leave that open for now.
Thanks alot tho', I think I just have to think outside the box for once :)

Jan 9 2011, 7:15 pm
In response to JackSmoke
You'd use locate(/mob/skills/verb/double_punch) in src.verbs
Jan 9 2011, 8:33 pm
In response to JackSmoke
Garthor gave you the answer. Use the locate() proc the way he suggested.