initial commit

aghanim_singleplayer/scripts/vscripts/ai/brewmaster_storm.lua

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+--[[ Brewling Storm AI ]]
+
+require( "ai/ai_core" )
+
+function Spawn( entityKeyValues )
+	thisEntity.bInitialized = false
+	if not thisEntity.bInitialized then
+		thisEntity.vInitialSpawnPos = thisEntity:GetOrigin()
+		thisEntity.bInitialized = true
+	end
+	thisEntity:SetContextThink( "AIThink", AIThink, 0.25 )
+    behaviorSystem = AICore:CreateBehaviorSystem( thisEntity, { BehaviorNone, BehaviorRunAway } )
+end
+
+function AIThink()
+	return behaviorSystem:Think( )
+end
+
+--------------------------------------------------------------------------------------------------------
+
+BehaviorNone = {}
+
+function BehaviorNone:Evaluate()
+	return 1 -- must return a value > 0, so we have a default
+end
+
+function BehaviorNone:Begin()
+
+	local orders = nil
+	local hTarget = AICore:ClosestEnemyHeroInRange( thisEntity, 1000 )
+	if hTarget ~= nil then
+		thisEntity.lastTargetPosition = hTarget:GetAbsOrigin()
+		hTarget:MakeVisibleDueToAttack( DOTA_TEAM_BADGUYS, 100 )
+		orders =
+		{
+			UnitIndex = thisEntity:entindex(),
+			OrderType = DOTA_UNIT_ORDER_ATTACK_TARGET,
+			TargetIndex = hTarget:entindex()
+		}
+	elseif thisEntity.lastTargetPosition ~= nil then
+		orders =
+		{
+			UnitIndex = thisEntity:entindex(),
+			OrderType = DOTA_UNIT_ORDER_ATTACK_MOVE,
+			Position = thisEntity.lastTargetPosition
+		}
+	else
+		orders =
+		{
+			UnitIndex = thisEntity:entindex(),
+			OrderType = DOTA_UNIT_ORDER_STOP
+		}
+	end
+
+	return orders
+end
+
+BehaviorNone.Continue = BehaviorNone.Begin
+
+--------------------------------------------------------------------------------------------------------
+
+BehaviorRunAway = {}
+
+function BehaviorRunAway:Evaluate()
+	local desire = 0
+
+	-- let's not choose this twice in a row, or even too close to another escape
+	if behaviorSystem.currentBehavior == self or 
+		( self.startEscapeTime ~= nil and ( ( GameRules:GetGameTime() - self.startEscapeTime ) < 3 ) ) then
+		return desire
+	end
+
+	self.escapePoint = thisEntity.vInitialSpawnPos
+
+	local enemies = FindUnitsInRadius( DOTA_TEAM_BADGUYS, thisEntity:GetOrigin(), nil, 300, DOTA_UNIT_TARGET_TEAM_ENEMY, DOTA_UNIT_TARGET_HERO, DOTA_UNIT_TARGET_FLAG_NO_INVIS, 0, false )
+	if ( #enemies >= 2 ) and ( thisEntity:GetHealthPercent() < 30 ) then
+		desire = #enemies + 1
+	end
+	
+	return desire
+end
+
+
+function BehaviorRunAway:Begin()
+	--print( "BehaviorRunAway:Begin()" )
+	self.startEscapeTime = GameRules:GetGameTime()
+	-- move towards our escape point
+	return
+	{
+		UnitIndex = thisEntity:entindex(),
+		OrderType = DOTA_UNIT_ORDER_MOVE_TO_POSITION,
+		Position = self.escapePoint
+	}
+
+end
+
+function BehaviorRunAway:IsDone( )
+	return ( GameRules:GetGameTime() > ( self.startEscapeTime + 2 ) ) or
+		( ( thisEntity:GetAbsOrigin() - self.escapePoint ):Length2D() < 200 )
+end
+
+function BehaviorRunAway:Think( )
+	-- keep moving towards our escape point
+	return
+	{
+		UnitIndex = thisEntity:entindex(),
+		OrderType = DOTA_UNIT_ORDER_MOVE_TO_POSITION,
+		Position = self.escapePoint
+	}
+
+end
+
+--------------------------------------------------------------------------------------------------------
+
+AICore.possibleBehaviors = { BehaviorNone, BehaviorRunAway }