Create A Flying Pet: Transcript 2b

 

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PDA 0.6 whispers: Welcome, Catfart Grayson

Popper: Your object 'Popper' has been returned to you from parcel '' at Fujin 227, 103.

Pony: Your object 'Pony' has been returned to you from parcel 'Protected Land' at Uba 1, 120.

Pony: Your object 'Pony' has been returned to you from parcel 'Protected Land' at Uba 48, 163.

Planet Mars is online

Bernardo Rockwell is online

Vindi Vindaloo is online

Green Jacques is online

Sophos Casanova is online

LadyMacbrat Loveless is online

RacerX Gullwing is online

Courtney Boffin is online

Snapdragon Dayton is online

Jen Virgo is online

Jake Fairplay is online

Aleksandr Martov is online

Gwyneth Llewelyn is online

Pony: Your object 'Pony' has been returned to you from parcel 'Protected Land' at Uba 68, 179.

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You: :) your very early ladies

Elle Pollack: Yep

Azazel Czukor: over eager, at least I am :)

Elle Pollack: I just had nothing else to do :)

You: hehe

Candide LeMay: hello

You: If any one made soemthing they want to show off, Ive pout a stand in the middle of the woden chairs behind you

You: evening

You: Fire Lizard from the draginrider books?

Elle Pollack: Yeah...I wanted a small dragonlike creature and I had the books handy :)

You: verty nice, is the axis correct?

Elle Pollack: Root prim is the ridge in it's head...z pointing up, x pointing foward :)

You: cunning

You: did anyone else have a go at making something?

Candide LeMay: i only made a joker card (a box with 2 textures)

Candide LeMay can't build

You: hehe, flats are fun, and have a long tradition

Azazel Czukor: I made a little raven guy

You: same here, cant draw either, but there are plenty of sprites on the internet

You: hes good

Candide LeMay: brb relog

You: only nine prims!

Azazel Czukor: :D

Azazel Czukor: ooh I love your dragon Elle

Elle Pollack: Dankee :)

D1M2: I'm here

D1M2: Ouch

D1M2 whispers: order play

D1M2 whispers: order come

D1M2 whispers: order sit

You: this is something Ive been working on

You: D1M2 come

D1M2 whispers: selected line 0

D1M2: OK

D1M2: Ouch

You: D1M2 play

D1M2 whispers: selected line 1

D1M2: I'm on it

D1M2: Ouch

Azazel Czukor: awwww he's cute

You: not sure about its personality yet

Claire Engel is online

Blueman Steele: hi is this the dragon class

Candide LeMay: yup

You: Blueman it is

Blueman Steele: I missed part one.. but may I try to keep up?

You: oh, and I taught a new trick to Tink

You: Blueman sure, let me dig you out a copy of last weeks documentation

Alan Steed: i missed it as well if u wouldnt mind fillin me in with the notes plz

Blueman Steele accepted your inventory offer.

onionpencil Musashi: hey blue lol sos u came hahaah

Alan Steed: ty

Alan Steed accepted your inventory offer.

Blueman Steele: yup

TxKatie Curie is online

Blueman Steele: hi Ariel

You: Tjere is another part of the transcript, but that is in this weeks slides so you will get it at the end of this session

Blueman Steele: oops AFK she is

Brianna Lioncourt: hullo everybody

You: Hello Brianna, how did you get on with the notes?

D1M2: Script run-time error

D1M2: Stack-Heap Collision

onionpencil Musashi: bah so used to music the quiet is unearthly lol

Brianna Lioncourt: oh, you want to see what I've done?

You: whoops, looks like I have a bug in my droid

onionpencil Musashi: drug in yer boid

Brianna Lioncourt: can you please stop that light changing for this class

Blueman Steele: drung in yoru void

onionpencil Musashi: go to debug

You: Brianna, debug>rendering>type.clouds

Brianna Lioncourt: excuse me?

You: do you have your debug menu showing?

Elle Pollack: How long will the test go on?

You: gooney bird, cool

onionpencil Musashi: test?

You: Elle, the event will last about an hour

Elle Pollack: Ooops, wrong chat window...but thanks :)

Blueman Steele: WB ariel

Elle Pollack: I was asking someone about the game they're beta-testing

You: OK, Ill give it another minute or so then Ill get started

Brianna Lioncourt: Sorry

Brianna Lioncourt: I hit the wrong button by accident

You: Briana you sorted out the clouds yet?

Brianna Lioncourt: and had to come back in

Brianna Lioncourt: nope

Brianna Lioncourt: Where do I findit?

You: ok, do you have your debug menu showing at the top of the screen?

Candide LeMay: next to help

Alan Steed: cntrl shift - fixes it i think

Brianna Lioncourt: nope

You: if not press ALT-CTRL and D

Brianna Lioncourt: ok, have it

Brianna Lioncourt: now what?

Basic Chair: Right click me and choose 'Sit Here' to sit down

You: deebug>rendering>types>clouds

You: under debug,mis rendering,s elect that, then select types then unselct clouds

Brianna Lioncourt: where do I type it in?

onionpencil Musashi: no typing

You: hehe, use the mouse select the debug menu

You: then select the rendering option

You: under that, select types

You: you will see a list of different thigns with xs by them

You: select clouds to trn them off

Brianna Lioncourt: Thx!!!

You: good stuff, ok I can see one more coming in from the teleport

Brianna Lioncourt: Sorry to have been troubvle

onionpencil Musashi: everyone has stuff learn stuff somehow at some point

You: everyone finished loading in the textures, I know there are a lot of them here

Brianna Lioncourt: Are you the one who made a little green dragon

onionpencil Musashi: often winds up being when we already need it lol

Brianna Lioncourt: was givein it months ago

You: OK so to recap last week

You: I talked about how we are going to have three scripts in the pet

You: one for each specific function

You: a movement script, a brain script and an actions script

You: I talked about the limitations on the models

You: no larger than 90kg

You: No more than 30 prims

You: x axis must point in the direction it is going to move in

Brianna Lioncourt: is mine ok?

You: then we talked about the link messages that the scripta are going to use to talk to each other

You have exchanged calling cards with Brianna Lioncourt.

Brianna Lioncourt is online

You: I discussed how we are going to use LINK_NUM

You: and num

You: and we left it were I said that on the Wiki, was the solution to the problem

You: of putting lots of data items into a string

You: So lets see how that works

Brianna Lioncourt: you've already lost me

You: just a sec, I need to get a note card out

Aleksandr Martov is offline

You: hehe, dont worry I go pretty slowly

You: OK, so here is the code that is going to put all our data int one string

You: first we create a list and put all outr data items into that list

You: Here Ive put a string "MOVE" which is going to be outr message type

You: after that Im going to put the speed, and then the target location

You: and then some flag

You: :)

Elle Pollack: Where in the Wiki was this again?

You: the point is each of these items are different formats, vectors, integers and floats

You: Elle, you can reach it from the support section of the SL website

Elle Pollack: I know where the wiki is, I just forgot which part :)

You: All the work is done by the function llDumpList2String(), which does what its says

You: ele, the examples I think it was in

Candide LeMay: elle http://secondlife.com/badgeo/wakka.php?wakka=ExampleArgumentMultiplexing

onionpencil Musashi: elle if nothing else i can look it uo in my notes later

onionpencil Musashi: or never mind lol

Elle Pollack: Got it

Brianna Lioncourt: will you be handing out copies of your notes to us?

You: you give llDump... a list, and a string and it converts the list into a string

You: Briana yes

You: so after the secodn line here

You: the string data contains the string of information

You: you can see at the bottom of the slide

You: llDump... converts each data item

You: into a string and puts the string -=- inbetween everyone

Jake Fairplay is offline

You: now we can send that string out in the link message

You: if everyone is happy with that, we can look at how we get it out the other end

RacerX Gullwing: ok

You: can I just check, these slides should be rezzinfg really fast for ppl now?

Azazel Czukor: its all good

onionpencil Musashi: i'm fine

Elle Pollack: No problem here

You: oh, and you will get a copy of the slies at the end

Brianna Lioncourt: yes, but I still dont understand

neand Fleming: yes, fine

RacerX Gullwing: yup

You: OK, so llMessageLink sends a link message out

onionpencil Musashi: brianna were you here last class?

Brianna Lioncourt: and didnt really see the previous slides when you had them

Brianna Lioncourt: nope

onionpencil Musashi: then perhaps that is why you are lost

You: and link_mesage is the event

Brianna Lioncourt: and I am just startling to learn scripting

You: that is triggered when a link message is received

You: as you can see here, four variables are set when it is called

You: sender_num is the link number of the prim

You: that the script that sent the link message was in

You: lol, that came out right but horrible

onionpencil Musashi: lol

You: however, for this project, we dont need it :)

You: next is the integer num and this will be the same value as in the link message we sent

Brianna Lioncourt: Thanks Racer--Cat gave me the transxript already

Brianna Lioncourt: or so I thought

Brianna Lioncourt: it diendt get this far in the notes

You: then a str which contains all our data and finally the key that was also int he mesage

You: you remember that we are not using the key either

onionpencil Musashi: brianna i have a transcript of whole thing if you need later..

Brianna Lioncourt: ok, thx everybody

You: And this is how we decode our link message and extract the data

You: remember that we are going to use num as the channel or comapny id? In my case it is always 150

You: so the first thing we do is check to see if num is 150, if it is

You: I know its one of my messages

You: now we now to extract the data

You: and llParseStringKeepNulls() does the opposite

You: of llDumpList2String

Green Jacques is offline

You: shove the string and the separator string in one end

You: and out of the other comes a list containing each data item

You: But, we have lost the data format

You: they are all string

You: strings

You: once we have our list called Cmd here

You: we can look at the first data item, item 0

You: if it is equal to MOVE, we know we have a movment order

You: and now we can actually get our data

Blueman Steele: what does teh command it looks for look like

Blueman Steele: in chat

You: put the first data item ina integer called speed, the second in a vactor

Snapdragon Dayton is offline

You: Blueman whch bit?

Ariel Monde: I understand the move part, but i am not sure why we need llParseStringKeepNulls... what s the purpose of it for this project ?

Blueman Steele: like. what do I say to the object

Blueman Steele: MOVE ??

You: Blueman these are not listens

You: these are link messages traveliing between scripts in the same object

Blueman Steele: so this is parsing from the orignal grab

onionpencil Musashi: blue these are things pet 'decides' for itself

Brianna Lioncourt: is it possilbe to find a script already done we could use?

Blueman Steele: OH!

You: Ariel, what we are doing here is showing how to get all the informationw e need from a link message

You: it will be usd to tell the movement script where to move to

Brianna Lioncourt: So far, this is reaaly beyond me I'm afriad

You: LOL, sorry its not going to be that easy

You: did I mention this weeks homework?

Ariel Monde: so this script share string data between prims in a same object ?

Elle Pollack: Ariel: Because we had to send all the commants from the brain script to the movement script in one string, we need llParseString to break it back up into its parts

You: Brianna, stick with it for the moment, we can talk afterwards

You: Ariel yes

Ariel Monde: ah thank you Elle :)

onionpencil Musashi: it's a little over my head too but i'm really interested so i'm trying to learn

You: OK, so the last three commands here are taking the information from the list Cmd and putting it into individual

You: data itmes

You: but, because the list contains strings

You: each one has to be typecast into the correct foramt

You: that sthe (integer) and (vector)

You: everyone happy with those commands?

RacerX Gullwing: ok

neand Fleming: yes

You: npow this isnt the actual code we are going to use its just an example

You: time to look at the actual structure of the brain script

You: At its simplest level we only need 2 events

You: state_entry and link_message

You: astate_entry si going to pick somewhere to move to and then tell the movement script to go there

You: and link message is going to wait for the movement script to asay that its reached the target

You: theen its going to pick somewhere to go to and tell the

You: movement script to go there

You: and so on and so on

You: there are also two user defined functions that we need

You: OK so state_entry

You: as you can see it does two things, it calls a function called get_new_pos

You: get_new_pos is going to return a vector which

You: we are goign to keep for a sec

You: and then we are going to put that vector into a function called move_to_position

You: and move to postion is going to set up and send the link message

Candide LeMay: you mean select_new_position

You: select_new_position picks a new target to move to

You: move_to_position sends a link message out with that target in

You: you coudl do those two lines in one

You: move_to_position(select_new_position());

Candide LeMay: no i just mean you said get_new_pos

You: ah yes sorry

You: hehe got to watch my terms :)

You: looking at the link message event

You: first thing we do is check the channel number

Blueman Steele: uhm teacher.. Onion is passing notes! I demand you read it in from of the class

You: if its correct

You: pfft extra work for you

onionpencil Musashi: shhh

You: if its correct we are going to check the first item in the list

You: if it says ATPOS, we know its from the movement script

You: (Which we hanvt written yet)

You: so since we have reached the target we select a new target and send the pet on its way again

You: and it just keeps doing that

Popper: Your object 'Popper' has been returned to you from parcel 'Protected Land' at Uba 34, 151.

You: pick a traget wait for a mesage pick a target wait...

You: later on we will add other events

You: ok lets take a look at theose two user functions

You: This function does a lot of work, its job is to pick the next target to move to

You: changin how this function works will make a big impact on the behaviour of your pet

Louie Robertson: hi!

Planet Mars is offline

You: now in the class we are just going to pick a random position, but it doesnt have to be

Jen Virgo is offline

You: you could change this for instance to read the next

You: landmark in the inventory

Louie Robertson: hi guys!

You: OK, first thing Ive declared a global variable at the top

Jen Virgo is online

onionpencil Musashi: hi louie shh we're busy filling our brains

You: now that should be right at the top of your code, and being global it will be availalbe

You: to all bits of this script

You have exchanged calling cards with Louie Robertson.

Louie Robertson is online

Louie Robertson shouts: sky dancer is pregnant!!!!!!!!!!!!

You: the move range is the maximum distance your pet will move away from its current position

onionpencil Musashi: shoo!

Blueman Steele: this is s aclass sit or get out

You: so here Ive set it to three

You: that means the pet will move no further than 3 meters in each direction

Louie Robertson: fine there i sat

You: its nother variable you are going to want to fiddle with to get

You: something that looks good for you

onionpencil Musashi: just as a silly question is there a max practical range?

You: yes, the lenght of a sim

You: objects like people have trouble moving acoss sim bounaries

Jen Virgo is offline

You: OK so how are we going to get the new target, we are going to calculate an offset vector

You: fourth line down I declare the vector then each of its three components is set using llFrand

You: Ill go through the offeset.y line in details

You: offeset is a vector

Green Jacques is online

You: offset.y is the y component of the vector

You: so if the vector is <1,2,3>

You: then offset.y equals 2

Candide LeMay: err aren't you missing some parens there, or the one at the end should not be there

You: you can read each component ofa vector or set them using this method

Louie Robertson: bye guys!

You: hehe maybe, these slides were a bit rushed in places

You: err.... I meant congratulations on

You: spotting the deliberate error

onionpencil Musashi: lol he was ....testing you.. that's it

TxKatie Curie: lol

You: Ok so the line offset.y is setting the y component of offset

You: lLFrand is set here to give a number between 0 and 6

You: (Twince move_range)

You: and then we deduct move_range

You: so offset.y becomes a value between -3 and +3

You: smae with offset.x

onionpencil Musashi: cool!

You: Now Ive treated z slightly differently

You: z is the up down

Basic Chair: Right click me and choose 'Sit Here' to sit down

You: think about how birds and things fly

You: airplanes insencts

You: they all move further in the x y palne

onionpencil Musashi: mostly across

You: compared with up and down

You: so Im only going to have half the values for the z axis

You: the upshot is we end up with a box twice the move range long

You: and the same wdth and omove range high

You: with the pet in the center of that

You: it will move somewhere in the box

Vindi Vindaloo is offline

You: the last thing to do is to convert our offset into sim coordinates

You: adding the offeset to the gets current position will do that

You: so if the pet is at 20,20

You: we choose a random move of 2,-1

You: we actually want to move to 22,19

You: so the last thing this fucntion does is return the new target vector

Vindi Vindaloo is online

Elle Pollack: what does "return" mean?

Jen Virgo is online

You: we are going to come back to this function

You: ele return means that the function returns that value to the scrip

onionpencil Musashi: the answer it comes up with

You: see the line vector next_pos = select_new_position()

You: select_new_position is the function we have just been lookig at

You: it returns a new target vector and we put it into

You: the vecotr next_pos

You: didthat make sence?

Ariel Monde: yes

Gino Medici: yep

neand Fleming: it did

You: Ok, we now have a new target and the next thing we do is send it to the function move_to_position

You: hopefuly you will recognise some of this from previous sides

You: Setting up a few global variables again

You: speed is fairy obvious

You: target_range is how near the pet is going to get to the target

You: before it decides its reached it

You: I'll go into that more in the movement script

You: both of these are things

You: you are going to want to change and experiment with

You: then the move_to_positon functio nitself

You: which take a paameter of a vector

Bernardo Rockwell is offline

You: and which is going to be our next target

You: put all the data items into a list

Pony: Your object 'Pony' has been returned to you from parcel 'Protected Land' at Uba 38, 155.

You: and then send them in a link message via llDumpList22String as we did before

You: job done

You: everyone happy with that?

Ariel Monde: yes

You: your homework

You: write a brain script

You: lets take a look at the layout again

You: three global variables at the top

Gino Medici: Cat, are you going to give us the slides at the end of the class?

You: a function that is going to take a vector and spit out a link message

You: a funtion that is going to return a random position

You: then the states

You: state entry pick a target and then send a move message

You: link mesage, wait for a ATPOS mesage then move somewhere else

You: now Ive added another event

You: on_rez

You: which should be the same as your state_entry event

You: you need that to stop problems when you take your pet into your inventory

You: imagine that your in the top left corner of the sim

onionpencil Musashi: ah.

Blueman Steele: so state_entry only runs once then?

You: the pet moves a little way, you take it into your inventory and move

You: to the bottom right

You: Blueman, yes state_entry runs the first time

You: a script enters that state

Blueman Steele: but doesn't reset each rezzing?

You: Blueman no!

You: if you take a script into your inventory

You: when you take it out

You: it starts running in exactly the same

Blueman Steele: I see... so a memory of sorts

You: state

You: the 'prgrmme ointeer' is sotored as well

You: Im going to give you a script caled test harness

You: a test harness is used to help test scripts where you h

You: have things missing, we dont have a movement script yet

You: so the test harness is going to pretend to be the movement script

onionpencil Musashi: cool

You: it will listen for the correct link message and if it hears it it will telll you what it "hears

You: it will then wait a few second and then send an ATPOS message back to your brain script

You: So thats your task, you will have a copy of the slides in a second

onionpencil Musashi: groovy

You: so you will hve pictures of allt he code, plus my deliberate errors

neand Fleming: lol

You: Thats the end of this session, in a moment I will sort out the trnascript then you can take the slides

TxKatie Curie is offline

TxKatie Curie is online

You: next week will will start looking at the movement script itself

Rhiannon Chatnoir: thank you

You: thankyou all for attending

Ariel Monde: will we have the transcript from last week class when we discuss some of session 2 ?

Brianna Lioncourt: Yes, thanks!

You: yes

TxKatie Curie: grr xrashed

TxKatie Curie: crashed

Blueman Steele: thanks Grayson

Bernardo Rockwell is online

Brianna Lioncourt: what store?

neand Fleming: very nice cat

TxKatie Curie: can someone please give me a note card with the chat history please

Ariel Monde: Catfart is doing it now, Tx

neand Fleming: still comung katie

 

 

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