Bump proc in Developer Help

ID:172394
 
May 18 2004, 1:08 pm
Justing wondering if someone could tell me what arg i can use to get bump to del when hitting a area or show me a example of how to.I have tried many thing and still get runtimes.Thanks in advance
#1 May 18 2004, 1:18 pm
There isn't an argument to put into Bump() that will magically delete something, you have to make it a procedure within Bump().
mob
     Bump(atom/A)
          if(usr.bumpy) del(A)

In that instance, I used the variable "bumpy" to determine whether something should be deleted when it's bumped. Of course, you need a verb or something to "activate" or "deactivate" "bump-deleting" things.
#2 May 18 2004, 1:22 pm
In response to Enigmaster2002 (#1)
ahh i see now thank you Enigmaster2002 im in debt to you
#3 May 18 2004, 1:40 pm
In response to Enigmaster2002 (#1)
Use src instead of usr. Bump is the sort of proc that that could easily be screwed up by using usr.
mob/AInpc
    New()
        spawn()AI()
    proc/AI()
        while(1)
            var/NewLoc=get_step(src,pick(1,2,4,8))
            Move(NewLoc)

In that example, any time the AInpc bumps into anything there will be a runtime error.
Runtime error: Cannot modify null.bumpy
src: AInpc (/mob/AInpc)
usr: null
Bump(/mob)
Move((1,1,1),0)
AI()
New()

The error might look something like that.
#4 May 18 2004, 2:11 pm
In response to Loduwijk (#3)
Ah, thanks for pointing that out; for some reason, I thought Bump() was like Topic(), where the person using the link was usr. But I tested by doing:
mob
    Bump(atom/A)
        world << "usr: [usr]"
        world << "src: [src]"
        world << "Bumped: [A]"

and usr and src were identical.