Continuous Movement.

ID:143706
 
Jul 20 2007, 11:52 am
Code:
mob/var/test

mob
    verb
        Test()
            set name = "Test"
            set category = "Test"
            if(usr.test == 1)
                usr.test = 0
                usr << " OFF!"
            else
                usr.test = 1
                usr << "ON!"
                flick("test",usr)
                usr.invisibility = 1
                if(usr.dir == NORTH)
                    usr.loc = locate(usr.x,usr.y+1,usr.z) 
                if(usr.dir == SOUTH)
                    usr.loc = locate(usr.x,usr.y-1,usr.z)
                if(usr.dir == EAST)
                    usr.loc = locate(usr.x+1,usr.y,usr.z)            
                if(usr.dir == WEST)
                    usr.loc = locate(usr.x-1,usr.y,usr.z)
                usr.invisibility = 0
                flick("test",usr)


Problem description:

:P Continuous, what a word. I'm not going to lie, I had to look that one up. lol

Anyways! So I would like some assistance on what I can only assume would be looping. When I click test I want to move in the direction continuously until I click the verb again to stop it. Sounds easy enough, no? Well... I can't figure it out, and any help would be great. :D
Jul 20 2007, 12:05 pm
You'll want to look into the while()(http://developer.byond.com/docs/ref/info.html#/proc/ while) and step()(http://developer.byond.com/docs/ref/info.html#/proc/ step) procs.


Here's a very simplified version of how you might do this. Might not be perfect, but it's a start at should give you an idea.
mob/verb/Test()
    set name = "Test"
    set category = "Test"
    if(usr.test)
        usr.test = 0
        usr << " OFF!"
    else
        usr.test = 1
        usr << "ON!"
        flick("test",usr)
        usr.invisibility = 1
        while(usr.test)
            sleep(10) //You'll want some kind of delay, or they will go way too fast, and the loop will affect your game performance)
            step(usr, usr.dir)
        usr.invisibility = 0
        flick("test",usr)
<dm>
Jul 20 2007, 12:10 pm
In response to Zagreus
Ah perfect, thanks for the links! :D





Carnia
Jul 21 2007, 12:58 pm
In response to Zagreus
now how would you put something like that into a Client movement thing (like North South East West)? because im making a pacman game that something like this would be perfect for, but id need the northwest-northeast southwest-southeast parts disabled
Jul 21 2007, 1:03 pm
In response to VolksBlade
spawn a loop that continuously steps the mob in whatever direction it is facing, override the client/North(), client/East, etc procs to do nothing more than change the mobs direction.

client/North()
    mob.dir = NORTH


Override the diagonal movement keys to do nothing.
client/NorthEast()
    return
Jul 21 2007, 1:12 pm
In response to Zagreus
Awsome thanks!

im running a proc with your while() thing as soon as the person logs in, and its working ^__^

now onto those power pellets.. hmm
Jul 21 2007, 1:48 pm
Using a loop for this IS NOT recommended, instead use the walk() function instead of step().
client/North()
    walk(mob,NORTH,delay)
Jul 21 2007, 2:20 pm
In response to Nadrew
Didn't think about that. Good idea.
Jul 21 2007, 3:26 pm
In response to Nadrew
ummm whats the difference?
Jul 21 2007, 8:51 pm
In response to VolksBlade
Wasted code lines, pointless overly difficult approach. Plus walk has the same effect anyway. Why remake a walk() proc XD.
Jul 22 2007, 8:01 am
In response to Pyro_dragons
Exactly.

Less room for mistakes, automatic setting in background, etc.

It CAN be done with a loop, and if you know what you're doing I'm sure you can do it cleanly and efficiently. But why re-invent the wheel?

Note in my case, I didn't exactly know the wheel existed. :/ I've used walk() once or twice, but it's not such a common proc that you always remember its existence like step().
Jul 22 2007, 9:48 am
In response to Zagreus
Really? I use walk alot, but then again my game is an RPG.