-- $Id: //depot/Projects/StarWars_Steam/FOC/Run/Data/Scripts/AI/SpaceMode/FlankPlan.lua#1 $
--/////////////////////////////////////////////////////////////////////////////////////////////////
--
-- (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_Steam/FOC/Run/Data/Scripts/AI/SpaceMode/FlankPlan.lua $
--
--    Original Author: James Yarrow
--
--            $Author: Brian_Hayes $
--
--            $Change: 637819 $
--
--          $DateTime: 2017/03/22 10:16:16 $
--
--          $Revision: #1 $
--
--/////////////////////////////////////////////////////////////////////////////////////////////////

require("pgevents")

function Definitions()
	DebugMessage("%s -- In Definitions", tostring(Script))
	
	AllowEngagedUnits = false
	MinContrastScale = 0.75
	Category = "Destroy_Unit"
	TaskForce = {
	{
		"MainForce"
		,"Corvette | Frigate | Capital | Super = 2,6"
	},
	{
		"FlankForce"
		,"Fighter = 1,4"
	}
	}
	
	ExecuteFlank = true
	flank_block = nil
	flank_dist = 1000.0
	DebugMessage("%s -- Done Definitions", tostring(Script))
end

function MainForce_Thread()
	DebugMessage("%s -- In MainForce_Thread.", tostring(Script))
	ExecuteFlank = false

	BlockOnCommand(MainForce.Produce_Force());
	
	QuickReinforce(PlayerObject, AITarget, MainForce, FlankForce)
	
	DebugMessage("MainForce constructed at stage area!")
	MainForce.Enable_Attack_Positioning(true)

	SetClassPriorities(MainForce, "Attack_Move")
	BlockOnCommand(MainForce.Attack_Move(AITarget, MainForce.Get_Self_Threat_Max()))	
	DebugMessage("%s -- MainForce Done!  Exiting Script!", tostring(Script))
	ScriptExit()
end

function FlankForce_Thread()
	BlockOnCommand(FlankForce.Produce_Force())

	QuickReinforce(PlayerObject, AITarget, FlankForce, MainForce)	

	-- Parameters = target, direction ("left", "right", "front", "back"), minimum distance from target, threat tolerance
	flank_block = FlankForce.Prepare_Ambush(AITarget, "back", flank_dist, 500.0)
	if not flank_block then 
		DebugMessage("Unable to reach BACK flank, trying right.")
		flank_block = FlankForce.Prepare_Ambush(AITarget, "right", flank_dist, 500.0)
	end

	if not flank_block then 
		DebugMessage("Unable to reach RIGHT flank, trying right.")
		flank_block = FlankForce.Prepare_Ambush(AITarget, "left", flank_dist, 500.0)
	end
	
	if not flank_block then 
		DebugMessage("Unable to reach a flank.  Abandonning plan.")
		ScriptExit()
	end
	
	-- Try to stay in position to perform the flank
	while not ExecuteFlank do
		if flank_block.IsFinished() then
			if TestValid(AITarget) and FlankForce.Get_Distance(AITarget) < flank_dist then
					DebugMessage("%s -- Attempting to stay out of range and safe.", tostring(Script))
					FlankForce.Move_To(Project_By_Unit_Range(AITarget.Get_Game_Object(), FlankForce), FlankForce.Get_Self_Threat_Max())
			end
		end
		Sleep(5)
	end
	
	BlockOnCommand(FlankForce.Attack_Target(AITarget))
	FlankForce.Enable_Attack_Positioning(false)
	
	ScriptExit()
end
	

function MainForce_No_Units_Remaining()
	DebugMessage("%s -- All units dead or non-buildable.  Abandonning plan.", tostring(Script))
	ScriptExit()
end

function MainForce_Original_Target_Destroyed()
	DebugMessage("%s -- Target destroyed!  Exiting Script.", tostring(Script))
	ScriptExit()
end

function MainForce_Target_In_Range()
	ExecuteFlank = true
	MainForce.Enable_Attack_Positioning(true)
end

function FlankForce_Target_In_Range()
	FlankForce.Enable_Attack_Positioning(true)
end

function FlankForce_Original_Target_Destroyed()
	ScriptExit()	
end