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A. Starting Simple (Object AI)

A1. 'AISpecialPowerUpdate'

The very first thing you can do, even as a beginner, is to implement a piece of code known as 'AISpecialPowerUpdate'.
There already is a tutorial on this subject by cahik_ which i will expand upon. You may want to read it first but it is not necessary.

Overview of 'AISpecialPowerUpdate' module.
Syntax (example):
              

Code

Behavior = AISpecialPowerUpdate SpecialWoundingArrow     CommandButtonName = Command_SpecialAbilityWoundArrow     SpecialPowerAIType = AI_SPECIAL_POWER_ENEMY_TYPE_KILLER     SpecialPowerRange = 25     SpecialPowerRadius = 50     SpellMakesAStructure = Yes     RandomizeTargetLocation = Yes End

Now in detail:
              

Code

Behavior = AISpecialPowerUpdate SpecialWoundingArrow

As with all Behavior Code, the Behavior needs a tag ('SpecialWoundingArrow'), which can be anything you like but must be unique.
Something descriptive would be appropriate, but you can use 'XYZ' or whatever.

              

Code

CommandButtonName = Command_SpecialAbilityWoundArrow

• This is the name of the CommandButton used, plain and simple.

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_ENEMY_TYPE_KILLER

• This is the kind of AI being used with the button. I will go into detail when and where to use each one later.

              

Code

SpecialPowerRange = 25

• This is the range the AI looks for targets, if any. Usable if the CommandButton needs a single target.

              

Code

SpecialPowerRadius = 50

• This is the range the AI looks for targets as well, Usable for powers that have an area effect rather than a single target.

              

Code

SpellMakesAStructure = Yes

• This is possibly necessary for the AI to pick a suitable spot if the commandbutton creates a strucure (like the DwarvenCitadel Spell)

              

Code

RandomizeTargetLocation = Yes

• This makes the AI not always pick the same spot/target when directing the SpecialPower ascociated with the used CommandButton

The use of 'AISpecialPowerUpdate' is limited though, for one by the limited number of unmodifiable 'SpecialPowerAIType' tags in the game. The other thing is that this Behavior overrides certain limitations that a normal human player would have when using that button.

• The 'AISpecialPowerUpdate' does only check if the ascociated SpecialPower is unpaused. That's it.
  
• If there are modelconditions defined in the CommandButton itself or in the SpecialPowerUpdate of the ascociated SpecialPower that usually restrict it's use, like for example 'ForbiddenConditions = MOUNTED', the AI completely ignores those restrictions/requirements and uses the CommandButton anyway. There are some tricks to get around this though. :P
  
• Sometimes it seems as if the AI doesn't care if the unit in question even has the CommandButton in the CommandSet. As long as the CommandButton itself is defined somewhere and ascociated with a SpecialPower or WeaponSlot that the Object in question possesses, it WILL use the CommandButton, no matter if it is actually listed in the Object's Commandset! I cannot confirm when it happens, but it does.

Here is a list of usable 'SpecialPowerAIType's:


ToggleWeaponSets
              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_TOGGLE_MELEE_AND_RANGE

• toggles weaponset when engaged in close combat, toggles back when melee is over and suitable infantry targets are available again

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_TOGGLE_SIEGE

• toggles weaponset when engaged in close combat, often earlier than the Type above, especially if no Structures are in the vicinity; toggles back when melee is over and suitable Structure targets are available again

Activate Mount
              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_GOBLINKING_MOUNTED

• toggles Mount Module ONCE, right after the unit's creation, if the SpecialPower is Unpaused.

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_TOGGLE_MOUNTED

• seemingly does nothing

Activate FriendlyArmyAssist
              

Code

SpecialPowerAIType = AI_SPELLBOOK_ASSIST_BATTLE_BUFF

• centers SpecialPower on own engaged hordes

              

Code

SpecialPowerAIType = AI_SPELLBOOK_BUFFTERRAIN

• centers Taint/ElvenWoodSpecialPower on own engaged hordes

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_LEGOLAS_TRAINARCHERS

• centers SpecialPower on own archer hordes

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_GIVEXP_AOE

• centers SpecialPower on own hordes

              

Code

SpecialPowerAIType = AI_SPELLBOOK_ENSHROUDINGMIST

• SHOULD center SpecialPower on own hordes, but seems to accomplish nothing

Activate EnemyArmyAttack
              

Code

SpecialPowerAIType = AI_SPELLBOOK_ASSIST_BATTLE_DEBUFF

• centers on enemy horde

              

Code

SpecialPowerAIType = AI_SPELLBOOK_ARMY_BREAKER

• centers on large enemy hordes

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_GOBLINKING_CALLOFTHEDEEP

• centers SUMMON on enemy horde

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_LEGOLAS_ARROWWIND

• centers AOE attack on enemy horde

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_TARGETAOE_SUMMON

• centers SUMMON on enemy horde

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_GANDALF_WIZARD_BLAST

• centers WizardBlast Style AOE attack on enemy horde

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_ELENDIL

• seems to do NOTHING

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_RANGED_AOE_ATTACK

• centers AOE attack on enemy horde

Activate SpecialTargetAttacks ;mostly Heroes
              

Code

SpecialPowerAIType = AI_SPELLBOOK_CITADEL

• centers SUMMON on enemy horde

              

Code

SpecialPowerAIType = AI_SPELLBOOK_STRUCTURE_BASEKILL

• centers SUMMON on enemy fortress

              

Code

SpecialPowerAIType = AI_SPELLBOOK_STRUCTURE_BREAKER_PREF_WALLS

• centers SUMMON on enemy structures/walls

              

Code

SpecialPowerAIType = AI_SPELLBOOK_STRUCTURE_BREAKER

• centers SUMMON on enemy structures

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_ENEMY_TYPE_KILLER_STRUCTURES

• single attack on enemy structures

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_ENEMY_TYPE_KILLER_RANGED

• single attack on enemy heroes, machines or monsters

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_ENEMY_TYPE_KILLER

• single attack on enemy heroes, machines or monsters

Activate when damaged
              

Code

SpecialPowerAIType = AI_SPELLBOOK_HEAL

• centers AOE healing on damaged own hordes

              

Code

SpecialPowerAIType = AI_SPELLBOOK_REBUILD

• centers AOE healing on damaged own structures

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_BASIC_SELF_BUFF

• activated when damaged

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_SELFAOEHEALHEROS

• activated when surrounding Heroes are damaged

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_HEAL_AOE

• SUPPOSED to activate when surrounding units are damaged

Activate SpecialTargetSpells
              

Code

SpecialPowerAIType = AI_SPELLBOOK_SHROUD_REVEAL

• centers on enemy fortress position

              

Code

SpecialPowerAIType = AI_SPELLBOOK_TREE_KILLER

• centers on trees

              

Code

SpecialPowerAIType = AI_SPELLBOOK_CAPTURE_CREEP

• centers on Creep Structures

              

Code

SpecialPowerAIType = AI_SPELLBOOK_CALLTHEHORDE

• seems to do NOTHING

              

Code

SpecialPowerAIType = AI_SPELLBOOK_BUFFECONOMYBUILDING

• centers on own economy buildings

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_CAPTURE_BUILDING

• targets objects that are CAPTURABLE

              

Code

SpecialPowerAIType = AI_SPELLBOOK_ALWAYS_FIRE

• always fires. Seems to only work for SpellBook powers though.

Activate GeneralTargetAttacks ;units
              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_CHARGE

• activates and targets enemies when near.

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_GOBLINKING_BATTLEFRENZY

• seems not to achieve anything

Stances
              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_STANCEAGGRESSIVE

• activates when object that is part of a team is instructed to attack/attackmove

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_STANCEHOLDGROUND

• activates when object is instructed to defend. Mostly when BadlyDamaged.

              

Code

SpecialPowerAIType = AI_SPECIAL_POWER_STANCEBATTLE

• activates when none of the above is triggered.

Another different module follows on the next page.
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