initial commit

aghanim_singleplayer/scripts/vscripts/ai/beastmaster.lua

@@ -0,0 +1,174 @@
+--[[ Beastmaster AI ]]
+
+require( "ai/ai_core" )
+
+function Spawn( entityKeyValues )
+	thisEntity:SetContextThink( "AIThink", AIThink, 0.25 )
+    behaviorSystem = AICore:CreateBehaviorSystem( thisEntity, { BehaviorNone, BehaviorWildAxes, BehaviorPrimalRoar } )
+end
+
+function AIThink() -- For some reason AddThinkToEnt doesn't accept member functions
+	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
+
+--------------------------------------------------------------------------------------------------------
+
+BehaviorWildAxes = {}
+
+function BehaviorWildAxes:Evaluate()
+	--print( "BehaviorWildAxes:Evaluate()" )
+	local desire = 0
+
+	-- let's not choose this twice in a row
+	if behaviorSystem.currentBehavior == self then 
+		return desire 
+	end
+
+	self.wildAxesAbility = thisEntity:FindAbilityByName( "beastmaster_wild_axes" )
+	if self.wildAxesAbility and self.wildAxesAbility:IsFullyCastable() then
+		local enemies = FindUnitsInRadius( DOTA_TEAM_BADGUYS, thisEntity:GetOrigin(), nil, 700, DOTA_UNIT_TARGET_TEAM_ENEMY, DOTA_UNIT_TARGET_HERO, DOTA_UNIT_TARGET_FLAG_NO_INVIS, 0, false )
+		if ( #enemies >= 0 )  then
+			for _,hUnit in pairs( enemies ) do
+				if hUnit ~= nil and hUnit:IsAlive() then
+					local hGushModifier = hUnit:FindModifierByName( "modifier_beastmaster_wild_axes" )
+					if hGushModifier ~= nil then
+						--print("Enemy is already axed")
+						desire = 0
+					else
+						desire = #enemies + 1
+					end
+				end
+			end
+		end
+	end
+
+	return desire
+end
+
+function BehaviorWildAxes:Begin()
+	--print( "BehaviorWildAxes:Begin()" )
+	if self.wildAxesAbility and self.wildAxesAbility:IsFullyCastable() then
+		local enemies = FindUnitsInRadius( thisEntity:GetTeamNumber(), thisEntity:GetOrigin(), nil, 700, DOTA_UNIT_TARGET_TEAM_ENEMY, DOTA_UNIT_TARGET_HERO, DOTA_UNIT_TARGET_FLAG_MAGIC_IMMUNE_ENEMIES, FIND_CLOSEST, false )
+		if #enemies == 0 then
+			return nil
+		end
+		thisEntity:AddNewModifier( thisEntity, nil, "modifier_provide_vision", { duration = 1.1 } )
+		local target = enemies[#enemies]
+		local targetPoint = target:GetOrigin() + RandomVector( 100 )
+		local order =
+			{
+				UnitIndex = thisEntity:entindex(),
+				OrderType = DOTA_UNIT_ORDER_CAST_POSITION,
+				Position = targetPoint,
+				AbilityIndex = self.wildAxesAbility:entindex(),
+				Queue = false,
+			}
+			return order
+	end
+
+	return nil
+end
+
+BehaviorWildAxes.Continue = BehaviorWildAxes.Begin
+
+--------------------------------------------------------------------------------------------------------
+
+BehaviorPrimalRoar = {}
+
+function BehaviorPrimalRoar:Evaluate()
+	--print( "BehaviorPrimalRoar:Evaluate()" )
+	local desire = 0
+
+	self.primalRoarAbility = thisEntity:FindAbilityByName( "beastmaster_primal_roar" )
+	if self.primalRoarAbility and self.primalRoarAbility:IsFullyCastable() then
+		local enemies = FindUnitsInRadius( DOTA_TEAM_BADGUYS, thisEntity:GetOrigin(), nil, 600, DOTA_UNIT_TARGET_TEAM_ENEMY, DOTA_UNIT_TARGET_HERO, DOTA_UNIT_TARGET_FLAG_NO_INVIS, 0, false )
+		if ( thisEntity:GetHealthPercent() > 75 ) then
+			return desire
+		end
+		if ( #enemies >= 0 )  then
+			for _,hUnit in pairs( enemies ) do
+				if hUnit ~= nil and hUnit:IsAlive() then
+					local hStunModifier = hUnit:FindModifierByName( "modifier_stunned" )
+					if hStunModifier ~= nil then
+						--print("Enemy is already stunned")
+						desire = 0
+					else
+						desire = #enemies + 1
+					end
+				end
+			end
+		end
+	end
+	
+	return desire
+end
+
+function BehaviorPrimalRoar:Begin()
+	--print( "BehaviorPrimalRoar:Begin()" )
+	local enemies = FindUnitsInRadius( thisEntity:GetTeamNumber(), thisEntity:GetOrigin(), nil, 600, DOTA_UNIT_TARGET_TEAM_ENEMY, DOTA_UNIT_TARGET_HERO, DOTA_UNIT_TARGET_FLAG_MAGIC_IMMUNE_ENEMIES, FIND_CLOSEST, false )
+	if #enemies == 0 then
+		return nil
+	end
+	local target = enemies[#enemies]
+	if self.primalRoarAbility and self.primalRoarAbility:IsFullyCastable() then
+		--print( "Casting Primal Roar" )
+		local order =
+		{
+			UnitIndex = thisEntity:entindex(),
+			OrderType = DOTA_UNIT_ORDER_CAST_TARGET,
+			TargetIndex = target:entindex(),
+			AbilityIndex = self.primalRoarAbility:entindex(),
+			Queue = false,
+		}
+		return order
+	end
+
+	return nil
+end
+
+BehaviorPrimalRoar.Continue = BehaviorPrimalRoar.Begin
+
+--------------------------------------------------------------------------------------------------------
+
+AICore.possibleBehaviors = { BehaviorNone, BehaviorWildAxes, BehaviorPrimalRoar }