UserManual 1_2-Unity.qxd
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1. 2 call the ChangeBkgrndChange function of myAICI to change the rate of change for every interaction the NPC has This is like changing the rate an overall personality changes In the real world such changes usually take years the default rate for game play is 0 1 which is still faster than real world changes but necessary for most game play situations 3 4 Using AlReturnResult and AlNoResult Sometimes you will want to get a result from the NPC s personality but not have the mere fact of getting a result alter that personality In the example in Figure 3 3 we are checking whether an NPC will start a conversation with a player who has just entered the NPC s shop We don t want to change the NPC s personality maybe we d change it after the encounter though if for instance things go well and reinforce the NPC s desire to start conversations so we check using AlReturnResult but with the toChange parameter set to false To change the values later without needing another result we could use AINoResult For example assume that after the conversation we want to change the personality private bool StartConversation determine whether NPC wishes to start the conversation or wait for the player to start Use the Al to determine by checking against NPC s gregariousness pass NPC name player name tendency to check and whether to change personality based on this check in this case we don t just getting a2. Begin Preset Character when ready After this the Preset Character options will become available see Figure 5 Click the check box next to the desired preset then click Create Character This creates the char J ame Char Editor l oe _ ExtremeAI Character Creator Editor To change a response click the box Character Name Newlin Newbiel Create Edit Character next to it to enable changes Then drag suggestions the slider to the value you want the character to have and release All related responses will be recalculated as well Repeat as you like Mstimuli Response Types C affectionate 50 O C efficiency 50 _ Oo kind 50 n C ambitious 50 _ _ _ _ excitability 50 m moodiness 50 es seen J anger 50 ae C gregarious 50 M orderly 50 et C annoying 50 SH guilt 50 oa productive 50 anxiety 50 _ el happiness 50 _ _ _ _ _ _ m quarrelsome 50 0 O assertiveness 50 0 helpfulness 50 _ m O reluctance 50 Te C condescension 50 09 humour 50 oh sadness 50 _ C conformity 50 m imaginative 50 _ um selfishness 50 EO deceitfulness
3. assertive Depend able efficient Not affectionate Inventor Mad Scientist Intellectual efficient imaginative Very ambitious but chaotic Peasant Unionist Anxious orderly Ambitious demanding efficient mPolitician Right Selfish quarrelsome Higher conformity than others Click a box next to a preset 5 choice then press Create Character Drunk Angry Angry intimidating annoying Generally impulsive and prone to delusion Guard Assertive dutiful orderly king Arrogant Assertive efficient Arrogant demanding ambitious Personal Assistant Productive orderly efficient dependable Not impulsive Priest Dependable level headed Not prone to depression o Drunk Sad Sad withdrawn guilt ridden Generally impulsive and prone to delusion Hippy Happy affectionate imaginative gregarious Non conformist King Wise Assertive efficient Dependable not stand offish forthcoming Politician Left Selfish quarrelsome intellectual imaginative Professor Intellectual witty Not really a conformist Talkative gt gt Salaryman Seducer _ Shopkeeper Snob Conformist productive orderly Ambitious assertive affectionate Orderly ambitious efficient Unkind selfish Somewhat Not impulsive imaginative gregarious dependable truthful deceitful condescending Thief Imp
4. if another check indicates the NPC has a high anger intensity perhaps the NPC reacts very negatively to the player s kindness it s up to you how many checks you want to make for any given interaction 1 Low slightly negative response or relatively neutral 1 2 Average reacts as the average person would in this situation 3 High reacts positively note that having a high positive reaction for one stimulus e g kindness may be very different from a high positive response to another e g anger 4 Extremely high intensely positive response returning a result The default taking the character name player name and stimulus changes the values in a positive way indicating a step towards more intenisty the next time the stimulus is checked What if our NPC had had a smashing time in the worst possible sense of the word You could then change her impulsiveness to be less likely to rule her thoughts by calling AINoResult with an additional boolean value posChange set to false See Part 3 for examples of these functions in use and take a look at the sample Unity scene for a demonstration You can also visit guantumtigergames com for another example the voters demo ExtremeAl User Manual page 13 3 0 Examples Of course just the cut and dry enumeration of function calls doesn t really demonstrate the possibilities the range of character responses and development when using the ExtremeAI engine Foll
5. or you can continue typing in the name of a new character the drop down also helps prevent creating two characters with the same name Once you have typed double clicked on a name press the Create Edit Character button This will activate the sliders each set to a value between 0 the character has an extreme ly low propensity for this and 100 the character reacts in this way very intensely see Figure 2 middle or bottom Zero kindness would indicate a very unkind person 100 would be someone who was almost saintly If the character already exists its current values from her his facets will be calculated Figure 2 middle a new character will start out with all 50s Figure 2 bottom Who is that character to the side To the right of the various TaiPE screens is Raina super deformed version QTG s spokescharacter she hopes to be like Sonic or Mario one day hey aim high right She offers advice about using the ExtremeAl engine for those times when you don t want to drag out the user manual To adjust the values click the toggle box next to a response type then move the slider up or down When you release the slider the character s facets will be refigured to match the new response value and then all his her responses will be recalculated to match the new facets For example changing The New Guy s Affectionate score from 50 to 70 also increases his Kindness to 57 but decreases his Anger tendency to become angry
6. 50 pn impulsive 50 Se standoffish 50 e pa C demanding 50 intellectual 50 Ft m sternness 50 C dependability 50 0 C intimidating 50 Oo stubborn 50 en see C distrustful 50 oH jealousy 50 talkative 50 re wittiness 50 _ m Reset Character Delete Character i Save Character Done Close no save Figure 3 The New Guy with adjusted stimuli response values ExtremeAl User Manual page 7 acter At this point you can type in another name to create another preset character or you can press Done to close the window Pressing Done before pressing Create Character closes the window and does NOT create the preset character The last row of preset choices is all presets you can create and edit yourself as covered next Create Your Own Preset Your personal army of preset personalities If none of the existing presets works for you you can create up to four of your own You do this by selecting Create Your Own Preset from the ExtremeAI menu In the window that comes up you will be given four options from which to choose see Figure 6 these are the current user created presets or the defaults if you haven t creat ed any Double click on one of these to select it for editing Once selected the name of the preset will appear in the New Name if desired box and the sliders will become available To rename the preset type a
7. The structure of phenotypic personality traits American Psychologist vol 48 no 1 pp 26 34 John OP et al 2010 Paradigm Shift to the Integrative Big Five Trait Taxonomy History Measurement and Conceptual Issues in John et al ed Handbook of personality Theory and research 3d ed Guilford New York US edition McCrae RR amp Costa Jr PT 2010 The Five Factor Theory of Personality in John et al ed Handbook of personality Theory and research 3d ed Guilford New York US edition ExtremeAl User Manual page 20
8. change throughout the game s run giving every play through a different feel giving your players that much more incentive to return to your game and play it again wondering what would hap pen if they had treated those soldiers or shopkeepers or henchmen a little differently Please feel free to contact us at Quantum Tiger Games with questions or even just to share your experiences using ExtremeAI at support quantumtigergames com Thank you Jeff Georgeson Quantum Tiger Games LLC ExtremeAl User Manual page ii 1 0 Installation and Overview 1 1 System requirements The Unity specific version of the ExtremeAI engine works in Unity 4 x there is also a Windows exe version available The disk space memory etc requirements are mini mal 1 2 Initial setup for Unity It s easy to set up the ExtremeAI engine There are two ways depending on how you downloaded the engine through the asset store or as a zip file If you bought ExtremeAI in Unity s asset store simply follow the import instructions there The dlls and resources will be imported into their appropriate folders automatical ly NOTE The TaiPE_Lib dll located in Assets ExtremeAI Scripts must be in the same folder as any scripts that use it You should copy it into whichever folder you re using for your project s script files Make sure to read the notes after the That s it paragraph below If you have a zip file first unzip the ExtremeAI file if you ha
9. do this when you are simply checking on an NPC s reaction intensity but aren t in a situation where the personality would be changed such as checking whether an NPC would be the first to start a conversation checking gregariousness no real interaction with a player has yet occurred so there isn t a reason to change the NPC s reactions There also may be times when you don t know at the outset in what way the NPC s personality would be changed by an event say you check her impulsiveness to see whether she ll follow the player off the edge of a cliff It would depend on the outcome of this action whether she later thought of it as a negative or positive reinforcer of her impusiveness Which brings us to AINoResult string playerName string stimulus bool posChange true returns nothing So your NPC has jumped over a cliff and had an absolutely smashing time in the best sense of the word Her impulsiveness should be increased but you don t need any sort of value returned for a new response the response and event already happened That s when you use AINoResult This function changes the NPC s personality without ExtremeAl User Manual page 12 Extremely low could indicate a reaction opposite to that queried or just an absolutely neutral response e g a kindness intensity of 0 could mean the NPC just ignores the player or perhaps reacts negatively the actual reaction is that which suits the situation Or
10. somewhat to 46 along with changing several other values slightly This is because the psychological factors underlying the Kindness response the facets were changed when you adjusted Kindness and thus every other response based on any of the same factors changed as well see Figure 3 When you are finished adjusting the values click the Save Character button to save your edits And if you re unhappy with your changes and would like to come back to this character later or never click Done This closes the editor window without saving You can also click Done without ever entering a character name this closes the window without creating or editing anything ExtremeAl User Manual page 5 Please enter a character name in the box then press Create Edit Character JOUOOOUUUOUOOO a GS 8 a a a a a aaa JOOOUOOOUOUOUOD Char Editor To change a response click the box next to it to enable changes Then drag the slider to the value you want the character to have and release All related responses will be recalculated as well Repeat as you like SOOO SOO Figure 2 Create a detailed character top Enter a character name then middle character exists or bottom new character edit her or his details ExtremeAl User Manual page 6 And what do the other buttons on this screen do Reset Character tThe Reset button resets a character s slider values to those he she had when imported or cr
11. ERYTHING i e if one player is particularly nice to the NPC this rate determines the amount the NPC is more kindly disposed to everyone in the world as a result The default for this rate is 0 1 which again is higher than the rate for humans in the real world but is desirable for noticing the changes in game Changing this rate by even a fraction has a large effect raising it as high as 1 would create a wildly changing person ality Again changing this rate for one NPC does not change it for any other AlIReturnResult string playerName string stimulus bool toChange true bool posChange true returns int This is one of the primary functions for the Personlaity Engine it takes a stimulus response type e g kind and returns an integer from 0 to 4 indicating the intensity of the response Why only five possible intensities Because we had to choose between further shades of intensity and speedier response times from the engine Five seemed the best compro mise AlReturnResult can be used in different ways The default takes the character name player name and stimulus response type and changes the personality of the NPC in regard to both this player and to everything else in the world see also the discussion of the base change functions above Alternatively you can call the function with an added boolean indicating that no changes are to be made to the personality done by setting the toChange bool to false You may want to
12. ExtremeAIl User Manual Unity specific version rev 1 2 February 2015 Copyright and TM 2012 2015 Quantum Tiger Games LLC All rights reserved Table of Contents Introduction 1 0 Installation and Overview 1 1 System requirements 1 2 Initial setup for Unity 2 0 Using the Engine 2 1 Setting up and editing characters 2 2 Using the character personalities ina game 3 0 Examples 3 1 Remember to set the NPC and player names 3 2 Getting it all started using Init 3 3 Changing speed of change 3 4 Using AlReturnResult and AINoResult 4 0 Support and Credits 5 0 Citations 10 14 14 14 14 16 19 20 ExtremeAl User Manual page Introduction Welcome to ExtremeAI Unity edition ExtremeAI provides a simple but complete add on to create and change non player personalities both before and during a game With such power your characters will react more realistically and will change their opinions of players depending on how they are treated You can create different per sonalities for as many NPCs as you wish and each will develop independently of all the others with potentially different reactions depending on interactions with a player with other players and NPCs and even with world events Through a set of menus in the Unity editor you can easily create and edit character personalities and assign them to NPCs And through scripting you can access these personalities in game and have your NPCs react grow and
13. NPCResponse lt ATTACKS gt break Figure 3 6 More complex use of AlReturnResult ExtremeAl User Manual page 18 4 0 Support and Credits 4 1 Support We re here to help Contact us at support quantumtigergames com with any issues We ll also post a FAQ on our website once we have enough questions to have a FAQ 4 2 Credits Design coding Jeffrey Georgeson Raina character created by Mark Foley Copyright and TM 2012 Quantum Tiger Games LLC Persistence of Memory In the near future Quantum Tiger Games will release an even more specific memory package for NPCs in which they will be able to remember actual events and the people attached to them rather than just reaction types We ll notify you when it s ready And you ll get a special upgrade deal if you already own the personality engine ExtremeAl User Manual page 19 5 0 Citations What References in a user manual Yes indeed because our game AI is based on research dealing with real humans and personality development The following are a few of the many works dealing with the Five Factor Model of personality Costa PT Jr and McCrae RR 1995 Domains and Facets Hierarchical Personality Assessment Using the Revised NEO Personality Inventory Journal of Personality Assessment vol 64 no 1 pp 21 50 DeYoung CG 2010 Toward a Theory of the Big Five Psychological Inquiry vol 21 no 1 pp 26 33 Goldberg L 1993
14. NPCs as you wish there is no require ment that every NPC in your game use the ExtremeAI engine We have endeavored to make the creation process as simple as possible however giving you the option of using preset base personalities or tweaking as many as 37 different aspects of your characters personalities These aspects are the same stimuli responses you will be able to choose from your game code For instance you can adjust the initial intensity of an NPC s kindness that is his likelihood of responding to kindness with kindness or to perform a kind act using the character editor Note that you are not directly changing the underlying facets of the NPC s personality there is no kindness facet for instance but are affecting the underlying facets that go into making us more prone to kindness Because of this when you change kindness you affect the other stimuli response types that have similar facets as components Also note that the numerical values you see are for your guidance only the underlying personality facets are the core of the engine and are ultimately used along with our per sonality algorithms to choose change levels of response in the actual game situation Character Editor Choose Preset Create Your Own Preset Register Player About Quantum Tiger Games Main Camera Yi Favorites Assets All Materials l E ExtremeAl All Mod
15. Name Edgar the Excellent instantiates copy of AlCharInfo AlCharinfo myAlCl alternatively could use AlCharInfo myAlICl new AlCharInfo iwhich would take care of instantiation all at once Use this for initialization void Start continue instantiation of Al interface myAICl new AlCharlInfo unless already done through alternate code above myAICl Init this tag NPCName Figure 3 1 Initializing a copy of AlCharlnfo for a character use the following function to change the rate of change per interaction with each player this represents the attitude the NPC has toward specific individuals rather than the overall change i e towards Mike the First Player but not towards everyone and everything generally note that the default is 5f float someAmount 5f myAICI ChangeBaseChange someAmount use the following function to change the rate of change for every interaction the NPC has this is like changing the rate an overall personality changes In the real world such changes usually take years the default rate for gameplay is 0 1f which is still faster than real world changes but necessary for most gameplay situations float someOtherAmount 0 1f myAICI ChangeBkgrndChange someOtherAmount Figure 3 2 Altering the speed at which a character s personality changes ExtremeAl User Manual page 15 in this value will have a very significant effect
16. ctions either with the same player or with other players or NPCs or even world events Thus just as in real life the very act of interacting with others can have an effect on how a character deals with the future and on how similar stimuli are dealt with Also as in real life having high tendencies toward a certain reaction does not mean the character will react in the same exact way each and every time our algorithms take this into account and return a reaction intensity from which you can make your own judg ment as to what the NPC says or does 2 1 4 ExtremeAl menu See again Figure 1 Pretty self explanatory From here you choose Extraversion Neuroticism Warmth Anxiety Gregariousness Angry Hostility Assertiveness Depression Activity Self Consciousness Excitement Seeking Impulsiveness Positive Emotions Vulnerability Agreeableness Trust Straightforwardness Dutifulness Altruism Achievement Striving Compliance Self Discipline Modesty Deliberation Tender Mindedness Table 1 The Five Categories and Their Facets categories in bold ExtremeAl User Manual page 3 deceitfulness condescension quarrelsome helpfulness selfishness affectionate dependability efficiency moodiness wittiness excitability assertiveness humour intellectual demanding productive ambitious orderly kind annoying intimidating gregarious imaginative talkative Table 2 Possible Stimuli Response Types to be queried by the de
17. different depending on how she feels about this player Even subtle dif ferences like this can make the gameplay even more interesting than it already is can add a bit of mystery and intrigue and depth especially depth to the world and the characters and people in it and ultimately lead to a more satis fying experience for the presumably human players playing your game The full references can be found at the back of this manual for those interested ExtremeAl User Manual page 4 There are two ways to create a character fine tuning a character in detail or using a pre set to make a quick general type For example you could tailor a specific NPC to be more kind intellectual and imaginative which will make that character more prone to wittiness and slightly less likely to anger as well due to the underlying facets You could also try the Professor preset which will give you a basically intellectual charac ter but not one who is necessarily kind or imaginative Characters created from a pre set can be fine tuned later using the character editor Following are detailed instructions for creating characters Character Editor Create a character in detail If you click the Character Editor menu a window opens containing a text field for name entry and a set of sliders see Figure 2 top Typing in a name will provide a sort of drop down list of existing characters you can double click on one of these to edit him or her
18. e returns int AINoResult string playerName string stimulus bool posChange true returns nothing These are described in detail below and again see the examples in Part 3 and the Unity scene example that came with the Engine Init string myTag string myNamels returns nothing This function initialises the AI module and must be called before you try to use it myTag is the Unity Tag value of this character in the Inspector so that the GameObject that is the NPC could be located by for example GameObject FindWithTag myTag myNamels is the name that matches the NPC s entry in the personality engine This function doesn t return anything ChangeBaseChange float amount returns nothing This function changes the base rate at which the NPC s personality changes in relation to an individual player or event type The default is 5 0 This is a bit more quickly than people s personalities change in real life but to notice the changes in a game ExtremeAl User Manual page 11 wherein the player may only speak to an NPC a few times this is the value chosen after testing various rates Remember that changing this rate for one NPC does not change it for any other so you can have characters whose personalities differ in terms of rate of change just like humans ChangeBkgrndChange float amount returns nothing This function changes the base rate at which an NPC s personality changes in relation to EV
19. e 10 2 2 1 For each NPC For each NPC using the personality engine attach a script creating its own instance of AICharInfo the interface between the character and the engine It also must know how to use the TaiPE_Lib dll For example in C you would 1 place a using TaiPE_Lib statement before the class definition in your code 2 declare a variable of type AlCharInfo e g AIlCharInfo myAICI 3 instantiate a copy of the module e g myAICI new AICharInfoQ Please see the example Unity code in part 3 2 2 2 Naming the NPC You should also set a variable equal to the NPC s name matching a character whose per sonality you created when creating characters using the ExtremeAI menus The NPC s name will be needed when you query the engine on his her behalf Note that this con nection is all you need to associate personalities with NPCs For example if you ve created a personality for Edgar the Excellent in the database then in scripts accessing Edgar s personality you ll need a string variable set to Edgar the Excellent The engine is case sensitive 2 2 3 What you can do The TaiPE_lib dll contains the following user accessible functions Init string myTag string myNamels returns nothing ChangeBaseChange float amount returns nothing ChangeBkgrndChange float amount returns nothing AlReturnResult string playerName string stimulus bool toChange true bool posChange tru
20. eated if new New characters will revert to all average values NOTE These settings create a base personality applied initially to every interaction the character has with anyone and anything in the game world As the character interacts with other individuals her reactions toward those indi viduals will vary depending on what those interactions have been in other words she may grow to despise a player who has been continually nasty to her yet love someone who has been nothing but kind and giving Additionally an NPC s base responses to strangers say will be affected by all of her inter actions with others and the world an NPC who has been treated badly by almost everyone will grow to be cynical and distrustful even if he started out a kind and genial soul Delete Character Deletes the current character Note that this is not reversible Choose Preset Create a character using presets Clicking ExtremeAI gt Choose Preset allows you to create a character quickly without having to adjust slider values There are 28 different presets some of which are sub types of the same general personality First type a name for the character in the Character Name box see Figure 4 this is the same as in the Create Edit Character window Typing in a name will provide a sort of drop down list of existing characters you can double click on one of these to edit him or her or you can continue typing in the name of a new character Click
21. els CAII Prefabs Figure 1 Unity editor screen including ExtremeAl menu ExtremeAl User Manual page 2 2 1 3 What are these stimulus response types Personality theory in general posits that there are certain base elements that go into cre ating a person s personality and that these factor in various ways into the sorts of deci sions and actions we make in our lives In the Five Factor Model a well respected the ory see for instance Goldberg 1993 Costa amp McCrae 1995 John et al 2010 McCrae amp Costa 2010 DeYoung 2010 these elements are the 30 personality facets listed in Table 1 which are grouped into five overall categories hence the Five in the name of the model Rather than having the developer try to check the individual personality facets and fig ure out how these might apply to various everyday stimuli such as another person being nice to you or response types like whether an NPC will go up to a stranger and be nice without provocation the engine provides 37 possible stimuli responses see Table 2 that have already been keyed into the various facets using our own extensive research and applying this to game type situations Thus the developer merely has to query whether a stimulus will elicit a strong reaction and the engine will take care of not only finding that answer but figuring out how much if at all having that interaction affects the personality of the NPC in future intera
22. erience There are more complex ways to check and change the NPC s personality however In Figure 3 6 we see an example of an NPC being intimidated by a player In this case we decide to check not just one but two response types one for the NPC s intimidation response and one for her anxiety response Why Because her desire to be intimidating right back might be outweighed by her anxiety over the situation So in this case we check both evaluate them against each other and then figure out the NPC s response so we re checking how the NPC responds to intimidation is she more anxious or intimidating right back using a more complex combination of responses int isAnxious myAlICl AlReturnResult NPCname plName anxiety int isIntimidating myAICI AlReturnResult NPCname plName intimidating whichResponse isIntimidating isAnxious switch whichResponse case 4 NPCResponse lt calls for help gt break case 3 NPCResponse lt replies something frightened gt break case 2 NPCResponse lt replies something nervous gt break case 1 NPCResponse lt replies something neutral gt break case 0 NPCResponse lt replies something neutral gt break case 1 NPCResponse lt replies something neutral gt break case 2 NPCResponse lt replies something annoyed gt break case 3 NPCResponse lt tells player to get lost gt break case 4
23. ing it less desirable to start conversations in the future especially with this player We would write something like the code in Figure 3 4 adjusting in a positive direction the default or a negative one The default action for any personality check requiring a result is to adjust the NPC s per sonality at the same time as this seems the more likely pattern Thus a player being intimidating to an NPC will immediately change the NPC s personality there s no need to wait until later to evaluate things In this case call A ReturnResult with toChange player has been kind whichResponse myAlCl AlReturnResult pIName kind true false switch whichResponse case 0 NPCResponse lt replies something negative gt break case 1 NPCResponse lt replies something neutral gt break case 2 NPCResponse lt replies something kind gt break case 3 NPCResponse lt replies something really kind gt break case 4 NPCResponse lt offers help to player gt break Figure 3 5 Changing the personality negatively and returning a result ExtremeAl User Manual page 17 and posChange set to True the default so really you need only have the playerName and stimulus parameters or with toChange set to True and posChange set to False see Figure 3 5 In the above example the player is kind to the NPC and so she checks her response to kindness and changes slightly for the exp
24. new name in the box and click Change Preset Name To change the preset s stimulus response values click the toggle box next to a response type then move the slider left or right When you release the slider the preset s facets will be refigured to match the new response value and then all its responses will be recalculated to match the new facets just as when using the Character Create Edit screen The preset s values are changed in the database live as you change them Note however that the preset s name is changed only if you click Please enter a character name in the box then press Begin Preset Character Figure 4 Create a character using presets ExtremeAl User Manual page 8 Choose Preset TaiPE Create Character Using Presets Character Name The Preset Peasani suggestions M Preset Choices Assassin Loner Distrustful deceitful Intimidating Plans well orderly Fighter Itchy Trigger Finger Intimidating assertive Impulsive demanding ambitious Inventor Innovator Intellectual efficient imaginative Ambitious orderly yPeasant Downtrodden Anxious orderly Unimaginative unambitious hard working Politician Middle Selfish quarrelsome but generally middle of the road Begin Preset Character Average Joe Average in every way Unlikely to exist in the real world Fighter Cool Hand Intimidating
25. o initialize the Engine for this character That s it Now you re ready to access the character s personality which you created using the character setup menus described previously see Section 2 1 3 3 Changing speed of change If you want to change the speed at which this character s personality changes not rec ommended until after you ve used the PE for a while to get a sense of how it works now would be the time to do it just after initializing the Engine still within the Start function Not that this is required The speed at which different facets change in real people s lives is already factored into our Engine and so continually tinkering with the overall speed of change will make the NPC more unrealistic and possibility quite wacky To do this see Figure 3 2 1 call the ChangeBaseChange function of your instance of the AIClientInterface in the example we ve called it myAICI with a float representing the new value This will change per interaction the attitude the NPC has toward specific individuals rather than change the overall personality The default is 5 Note that whole number changes ExtremeAl User Manual page 14 using UnityEngine using System Collections using TaiPE_Lib public class NPCClientSide MonoBehaviour Author Jeffrey Georgeson build 13 April 2012 Copyright Quantum Tiger Games LLC 2012 Wwho is the NPC we re dealing with in this script string NPC
26. owing are a few examples of using the engine in a Unity envi ronment Note that the examples assume you are using C 3 1 Remember to set the NPC and player names As mentioned before it s a good idea to set a string variable to the name of the NPC whose personality you are accessing as this name will be necessary every time you query the database However you can change an NPC s personality from any script anywhere as long as you use his her name in the function call Also the Engine must know which player or thing is interacting with the NPC in order to return values that make sense Setting the player name is done by registering it in the ExtremeAI menu as described in section 2 1 6 3 2 Getting it all started using Init To use the engine you have to create an instance of it for a character and then initialize it This is easy to do in a script you attach to a character do the following and see the boldface items in Figure 3 1 1 make sure to include a using TaiPE_Lib statement above the class declaration 2 when declaring variables for use in the class instantiate a copy of AICharInfo 3 in the Start function provided by Unity or some other function called when the script is first called continue the instantiation C requires not only declaring it in the vari ables but then setting it equal to a new AICharInfo 4 also in the Start function call the Init myTag myNamels function of AICharInfo t
27. r instance if you ve reg istered Playerl as the player name and in game that name is changed to Joe the Barbarian references in the personality engine would still be to Player1 Note that you can also set up non player players with which to interact For instance you can create a way to have the NPC react to world events by creating a world_events player ExtremeAl User Manual page 9 Create Preset Double click one of the preset names You can then change the name if you like S2RaR BR Paez aga JOOOUOUDUOUOUOUD J Figure 6 Double click a preset name to edit The generic name Player has been pre registered for you About Quantum Tiger Games Self explanatory really Clicking this on the ExtremeAI menu gives you more info about the personality engine and Quantum Tiger Games and shows Raina in her non SD glory 2 2 Using the character personalities in a game Now that you have the base personalities for your NPCs it s time to make them game accessible Make sure the TaiPE_Lib dll has ben added to your Scripts folder as per the installation instructions see Section 1 2 To change a response click the box next to it to enable changes Then drag the slider to the value you want the character to have and release All related responses will be recalculated as well Repeat as you like Figure 7 Change the name and adjust the sliders ExtremeAl User Manual pag
28. result int startConversation myAlCl AlReturnResult pIName gregarious false this returns a value between 0 and 4 0 being low in this tendency 4 being very high iwe don t need a separate response for every return value so if startConversation gt 2 will definitely start conversation return true else if startConversation lt 2 will definitely not return false else in between in this case decided randomly System Random random new System Random int randomNumber random Next 0 100 if randomNumber gt 50 return true else return false Figure 3 3 Getting a result without changing the NPC personality ExtremeAl User Manual page 16 private void AfterConversation bool thingsWentWell after the conversation we decide to adjust the NPC s gregariousness based on whether there was a positive outcome or a negative one pass NPC name player name tendency to check and whether to change personality in a positive direction or a negative one if thingsWentWell AINoResult pIName gregarious note that the default is for positive change else AINoResult pIName gregarious false Figure 3 4 Changing the personality without returning a result depending on whether we ve evaluated things to have gone well and thus reinforcing a stimulus in this case the desire to start another conversation or badly thus mak
29. ulsive Thief Catburglar Wizard Normal Wizard Mad Deceitful imaginative Impulsive undependable Deceitful imaginative Orderly productive demanding Intellectual imaginative Witty unselfish calm Intellectual imaginative Ambitious intimidating condescending efficient My Second Preset A preset you create My First Preset A preset you create This Is Me A preset you create Not no More Four A preset you create Create Character Done _ 4 Figure 5 The Preset Choices the Change Preset Name button See Figure 7 When you re done editing the sliders press Done to exit the screen or double click another preset to edit You can now use your new preset to create NPCs 2 1 6 Other ExtremeAl menu functions Register Player As mentioned before in order for your NPCs to keep track of their attitudes and feelings toward your player s they have to know how to reference him her them in this win dow you can type in the name of a player and press Register Player That s it Note that yov Il receive a message telling you whether the player was registered successfully or already exists Remember that the player name you register is the one that must be referenced when checking changing NPCs atttudes toward that player even if you have options in game for the human playing the player character to change names Fo
30. veloper Character Editor to create or edit an existing character using the full set of possible stimuli response types gives you access to the 37 different stimuli response types Use this to fine tune a character Choose Preset shows you a list of preset personality types allowing you to quickly make a type of character without having to adjust anything Note that you can how ever later edit these characters using the full set of stimuli response types if you wish Create Your Own Preset find yourself making a lot of similar characters but none of our presets quite fits This lets you create up to four of your own presets Register Player lIn order for your NPCs to keep track of their attitudes and feelings toward your player s they have to know how to reference him her them You will need to use this menu to register the player s About Quantum Tiger Games gives us the opportunity to talk about ourselves 2 1 5 Creating editing characters Ultimately of course the extent to which you consult the personality engine is up to you if you want a certain NPC to follow a very prescribed set of actions that s fine it does not interfere with the Engine s functioning to do this although it won t be able to develop that NPC s personality obviously If an NPC has to give out a piece of important information the Engine will not forbid it how could it what you might do however is have the NPC s phras ing be
31. ven t already if you re reading this manual you probably have come to think of it Next copy the ExtremeAI folder into your Assets folder The ExtremeAI folder contains three subfolders Editor Resources and Scripts Finally copy the contents of ExtremeAI s Scripts subfolder TaiPE_Lib dll into whichever folder you re using for your project s script files That s it Actually that s almost it you ll need to click on the menu bar in Unity to get the Tools ExtremeAI menu option to show up for the first time Also to successfully build a project using ExtremeAI you ll need to change the PlayerSettings in Unity Edit gt Project Settings gt Player or click Player Settings from the Build Settings dialogue box setting for API Compatibility Level at the bottom under Optimization to NET 2 0 NOT the default NET 2 0 Subset The subset lacks the functionality necessary to read some of the dlls used after compiling And that s really it You re ready to build personalities into your NPCs ExtremeAl User Manual page 1 2 0 Using the Engine 2 1 Setting up and editing characters The various submenus of the ExtremeAI menu found in Tools gt ExtremeAJ allow you to create and edit the base personalities for your NPCs This is all pregame stuff the characters will begin your game in whatever configuration you choose here 2 1 2 Background You can create personalities for as few or as many
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