Thread

a smart way of making a bot walk randomly around (Sdk)

a smart way of making a bot walk randomly around // Sdk

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kah

Apr 30, 2001, 5:46pm
I'm making a new free animal-bot and I wondered how I could get it to truly
walk randomly around (but within a limited area) like the HamBots and
Xelagots ( I think) can... I know that some of you know, so please tell me
:-))

KAH
cool scripts and bots by me and others: www.kahbot.com

jerme

May 1, 2001, 1:00am
Try using a combination of loops...

Get a random #
If it's inside your range then move the bot to that location
If not then get another random #
Wait a radom ammount of time within certin limits (you don't want the bot
stadning in one place for hours)
Do it all again...

I've got an example of this kind of random # checking.. It's in PERL, so i
don't know if it would help you that much. E-mail me if you want it.

-JerMe

--

JerMe at nc.rr.com
----------------------
AIM: AlphaNumeric100
ICQ: 106209991
AW: JerMe (#296967)


[View Quote]

xelag

May 1, 2001, 1:31am
Can you make your bot move forward, back, left, right, turn etc? This is of
course the basis for any movement. The random element is just a detail
really. I use a few routines to move the bot in 3D space. The
implementation is visible in the script satement

LocMove3D <object> <distance> <horizontal angle> <vertical angle>

Trigonometry is essential here :)

XelaG

[View Quote]

kah

May 1, 2001, 8:42am
I use this method for general walking:

sdk.AwMyX = sdk.AwMyX + 1000 'this would make the bot 1 coord to the West
sdk.AwStateChange 'reports the stuff the server

in C/C++ I guess it would be something like this:
AW_MY_X = AW_MY_X + 1000
AW_STATE_CHANGE
I dunno about that, cuzz I'm no good at C++

KAH
PS. Any VB programmers are welcome to use the code in their bots :-))
[View Quote]

m a k a v e l i

May 1, 2001, 4:01pm
If you want the bot to move randomly, to a certain extent in the world you
should use this (may be complicating, but it will work):

NewCoord = Int(Rnd * #) + 1
NSEW = Int(Rnd * 2) + 1
If NSEW = 2 Then NewCoord = "-" & NewCoord

If you replace # with a max number (Ex: If the world is a 20x20, make that
number 20), the bot will generate a random number and the NSEW will pick a
number of 1 or 2, if it is 1 the coord will be positive, if it is 2 the
coord will be negative. Then you add the code to make it move around, and it
will go nuts. If you want it to go around in a circle or something, that is
a totally different process.

kah

May 1, 2001, 5:45pm
thanx :-)) I actually tought that I might have to use the troncate
command...

KAH
PS. Do you know of some way of "detatching" parts from a string? if you've
scripted HamBot, this would be a kind of Parse feature.

[View Quote]

m a k a v e l i

May 1, 2001, 6:36pm
What do you mean detach string parts?

grimble

May 1, 2001, 7:45pm
If you mean to segment a string based on a delimiter, VB has a Split command
that takes a string and breaks it into an array of sub-strings which fall
between the delimeters specified. No-one ever seems to know about it because
its hidden in the MSDN library documentation somewhere. Check it out at

http://msdn.microsoft.com/library/default.asp?URL=/library/devprods/vs6/vbas
ic/vbenlr98/vafctSplit.htm

Hope this is what you were after.

Grims.

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grimble

May 1, 2001, 7:47pm
Sorry ... that didn't post right for the hyperlink to make sense ... damned
wrapping!! Just plug it together if you know what I mean.

Grims.

[View Quote]

baron

May 1, 2001, 8:38pm
Thanks, can't remember how many times I've done this manualy. Anything can be said about MS except that they don't hide info like this well :)

Baron


[View Quote]

rough diamond

May 1, 2001, 9:41pm
int x;
x = 0;
while(x <= 10000) ///Walk to 10W
{
x = x + 1000; // Take 10 steps
aw_int_set(AW_MY_X, x);
aw_state_change();
}

kah

May 4, 2001, 6:01pm
AAAAAAAAAAAAAARGHHH!!! that's a VB6 thingy! I only have VB 5 :-(( please
tell me how I could do it with my version...I guess that there's some way...

KAH

[View Quote]

m a k a v e l i

May 4, 2001, 9:04pm
I don't know VB5. sorry.

trekkerx

May 5, 2001, 9:58pm
I dont know much Triganomerty (Cuz im in 8th Grade) But I would make the
program genrate a random number (Something within -1000 thru 1000) and then
have it
sdk.AwMyX = (sdk.AwMyX + randnum)
sdk.AwMyZ = (sdk.AwMyZ + randnum)
I wouldent know the forumla for figuring out the angel the bot should face
when it stops moving. XelaG or Grimble might know more about that than I
would. But would would do it something like that.

[View Quote] > I use this method for general walking:
>
> sdk.AwMyX = sdk.AwMyX + 1000 'this would make the bot 1 coord to the West
> sdk.AwStateChange 'reports the stuff the server
>
> in C/C++ I guess it would be something like this:
> AW_MY_X = AW_MY_X + 1000
> AW_STATE_CHANGE
> I dunno about that, cuzz I'm no good at C++
>
> KAH
> PS. Any VB programmers are welcome to use the code in their bots :-))
[View Quote]

trekkerx

May 5, 2001, 10:01pm
Gotta do the math. Sory :(

[View Quote] > I don't know VB5. sorry.

xelag

May 6, 2001, 9:00am
[View Quote] The problem with your formula is simply that you will get a bot with
parkinsons disease, jumping madly in all directions. :) You need to have
some stability in the way the bot is facing and going, and some random
element to deviate from that. The basis is ok:

AwMyX + something1
AwMyZ + something2

you must also have
AwMyYaw + something3

and may even need
AwMyY + something4 if it is a bird.

it's the "something1/2/3/4" which is the problem. The AwMyYaw is actually
where you must start, and that's where trigonometry comes in: the bot must
walk roughly in the direction it is already facing, but deviating its AWMyX,
AwMyZ and maybe AwMyY slightly from it's present position, and then
recalculate and adjust its new AwMyYaw for the next step. I could send you
some code in Delphi, but you would have to translate it to VB... and you
still need a some knowledge of trigonometry to apply it correctly.

Another solution would be that MrGrimms adds some code to his sdk to help
with that, something like I have in my xelagot script, to move the bot D
metres at a H horizontal angle and a V vertical angle, and a way to
determine the new Yaw.

XelaG

kah

May 6, 2001, 11:02am
the bot looks the way it runs with the code I used (thanx m a k a v e l i),
but it runs way to fast, and to get it to run at a slightly slower rate, I
have parametered it only to run within a 2 coords big radius. I'd like to
have it moving on a larger radius, but slow...

KAH

[View Quote]

trekkerx

May 6, 2001, 4:12pm
I think Mr Grimm shoudl add a Follow, and Join command, cuz doign the math is
hard, and theres to many lines. And keeping track of everyones location isnt
easy (the way i know how to do it)

[View Quote] [View Quote]

m a k a v e l i

May 6, 2001, 6:02pm
Or, you could get unlazy and do it yourself, joining someone is easy, and
follow is also.

To Join:

Private Sub sdk_EventChat()
Message = LCase(sdk.AwChatMessage)
If Message = "join" Then
sdk.AwMyX = sdk.AwAvatarX
<etc..>
End If
End Sub

To Follow:
Loop the above code.. very simple, all you have to do is think.

trekkerx

May 6, 2001, 6:18pm
Uhhhh, yea.... But it will then join the person that moves, and it will be
right on top of them. On my bot I have it keep the location of owners. It
then will apper 2 and half meeters infron of them facing them.

[View Quote] > Or, you could get unlazy and do it yourself, joining someone is easy, and
> follow is also.
>
> To Join:
>
> Private Sub sdk_EventChat()
> Message = LCase(sdk.AwChatMessage)
> If Message = "join" Then
> sdk.AwMyX = sdk.AwAvatarX
> <etc..>
> End If
> End Sub
>
> To Follow:
> Loop the above code.. very simple, all you have to do is think.

m a k a v e l i

May 6, 2001, 6:36pm
Then why should MrGrimm add a function to join people if you can do it?

| Uhhhh, yea.... But it will then join the person that moves, and it will be
| right on top of them. On my bot I have it keep the location of owners. It
| then will apper 2 and half meeters infron of them facing them.

grimble

May 7, 2001, 2:33am
Sorry Kah, looks like you're gonna have to code it and play with InStr in a
loop.


[View Quote]

grimble

May 7, 2001, 2:42am
Ummm ... nope. No aw_avatar_x attribute in a chat message (read the SDK
documentation!). You need a session table and keep track of all the
aw_event_avatar_change messages beforehand before you can even know where
the avatar is.

That will only work (by luck) if there is only one avatar in the hearing
radius of the bot.

TrekkerX, I'll e-mail you with something when I've put it together.

Grims.


[View Quote]

billybob

May 15, 2001, 11:35pm
Hey KAH!

Here's how to do it. I'm not going to go into the walking part of all of it,
cause that is complex and hard to explain, but u can get that else where. So
here is the random. Two ways...

1. Just plain random...
You do this(for VB)
X = int(rnd * xlimit) - xlimit2
Z = int(rnd * zlimit) - zlimit2

then have the bot walk to that place

The xlimit is the MAX east/west. It is measures in CM, so take the W/E *
1000. and remeber it is MAX so if the world is p-20 and u want the limit
around the world then it would be 40000, yes 40000, cause its 20 * 1000 *
( this allows the bot to go not only west, but east) it is the same for
zlimit(only W/E is N/S)

The xlimit2 and zlimit2 is just half the xlimit and zlimit, this is
completion of the code that allows the bot to go from -20000 to 20000(if the
world is P-20)

2. U pick random. This is for worlds where the ground is really bumpy, or
filled. U make a large list of places where the bot will go to and have the
bot come up with a random number from 0 to the amount of loctions u have -
1. Using this method u can control the places the bot will go while still
having a sense of random. The first method will make the bot walk right
through some walls, so this method is recomended for perfection.


Hope I helped!

Remeber to check out USWF_PBL( the bot is still in debugging so please
report ANY bugs or comments to Billybob or Lord Fett) THANK YOU!

billybob

May 15, 2001, 11:37pm
if u really want to know how to make bots walk and have a timed walk(so it
does run like a mad man at 300,000km/s(the speed of light)) just TGram me
Billybob, and i can help u.

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