-- $Id: //depot/Projects/StarWars_Expansion/Run/Data/Scripts/AI/LandMode/DefendStructure.lua#5 $
--/////////////////////////////////////////////////////////////////////////////////////////////////
--
-- (C) Petroglyph Games, Inc.
--
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--/////////////////////////////////////////////////////////////////////////////////////////////////
-- C O N F I D E N T I A L   S O U R C E   C O D E -- D O   N O T   D I S T R I B U T E
--/////////////////////////////////////////////////////////////////////////////////////////////////
--
--              $File: //depot/Projects/StarWars_Expansion/Run/Data/Scripts/AI/LandMode/DefendStructure.lua $
--
--    Original Author: James Yarrow
--
--            $Author: James_Yarrow $
--
--            $Change: 56734 $
--
--          $DateTime: 2006/10/24 14:15:48 $
--
--          $Revision: #5 $
--
--/////////////////////////////////////////////////////////////////////////////////////////////////

require("pgevents")

ScriptPoolCount = 16

function Definitions()
	
	Category = "Defend_Structure"
	AllowEngagedUnits = true
	MinContrastScale = 1.2
	MaxContrastScale = 1.8
	TaskForce = {
	{
		"MainForce"					
		,"DenyHeroAttach"
		,"EscortForce"		-- This should force a good RPS match for the enemies in our target's zone
		,"Infantry = 0,20"
		,"Vehicle | Air = 0,20"
		,"LandHero = 0,3"
		,"-Gallofree_HTT_Company"
		,"-HAV_Juggernaut_Company"
		,"-F9TZ_Cloaking_Transport_Company"
		,"-Hutt_SailBarge_Company"
		,"-Fanblade_Fighter"
		,"-AALL6"
		,"-AT_AA_Walker"		
	}
	}
	RequiredCategories = {"Infantry | Vehicle | Air"}

	structure = nil
	kill_target = nil
	
end

function MainForce_Thread()
	BlockOnCommand(MainForce.Produce_Force())

	Set_Land_AI_Targeting_Priorities(MainForce)
	
	-- form up any spread out infantry
	MainForce.Activate_Ability("SPREAD_OUT", false)

	structure = AITarget.Get_Game_Object()
	DebugMessage("%s -- Found structure: %s.", tostring(Script), tostring(structure))
	if TestValid(structure) then
		kill_target = FindDeadlyEnemy(structure)
		DebugMessage("%s -- Found deadly enemy: %s.", tostring(Script), tostring(kill_target))
		if TestValid(kill_target) and (kill_target.Get_Distance(AITarget) < 500) then
			BlockOnCommand(MainForce.Attack_Target(kill_target, MainForce.Get_Self_Threat_Sum()))
		end
	
		BlockOnCommand(MainForce.Attack_Move(AITarget))
		BlockOnCommand(MainForce.Guard_Target(AITarget))
	end
end 


-- Make sure that units don't sit idle at the end of their move order, waiting for others
function MainForce_Unit_Move_Finished(tf, unit)

	Default_Unit_Move_Finished(tf, unit)

	if TestValid(AITarget) then
		-- As each unit arrives, guard the structure
		unit.Guard_Target(AITarget)
	end
end