DML/modules/cloneZone.lua

cloneZones = {}
cloneZones.version = "1.2.0"
cloneZones.verbose = false  
cloneZones.requiredLibs = {
	"dcsCommon", -- always
	"cfxZones", -- Zones, of course 
	"cfxMX", 
}
cloneZones.cloners = {}
cloneZones.callbacks = {}
cloneZones.unitXlate = {}
cloneZones.groupXlate = {} -- used to translate original groupID to cloned. only holds last spawned group id 
cloneZones.uniqueCounter = 9200000 -- we start group numbering here 
--[[--
	Clones Groups from ME mission data
	Copyright (c) 2022 by Christian Franz and cf/x AG
	
	Version History
	1.0.0 - initial version 
	1.0.1 - preWipe attribute
	1.1.0 - support for static objects
	      - despawn? attribute 
	1.1.1 - despawnAll: isExist guard 
	      - map in? to f? 
	1.2.0 - Lua API integration: callbacks 
		  - groupXlate struct
		  - unitXlate struct 
		  - resolveReferences 
		  - getGroupsInZone rewritten for data 
		  - static resolve 
		  - linkUnit resolve 
		  - clone? synonym
		  - empty! and method attributes
	
--]]--

--
-- adding / removing from list 
--
function cloneZones.addCloneZone(theZone)
	table.insert(cloneZones.cloners, theZone)
end

function cloneZones.getCloneZoneByName(aName) 
	for idx, aZone in pairs(cloneZones.cloners) do 
		if aName == aZone.name then return aZone end 
	end
	if cloneZones.verbose then 
		trigger.action.outText("+++clnZ: no clone with name <" .. aName ..">", 30)
	end 
	
	return nil 
end

--
-- callbacks 
--

function cloneZones.addCallback(theCallback)
	if not theCallback then return end 
	table.insert(cloneZones.callbacks, theCallback)
end

-- reasons for callback 
-- "will despawn group" - args is the group about to be despawned
-- "did spawn group" -- args is group that was spawned
-- "will despawn static"
-- "did spawn static"
-- "spawned" -- completed spawn cycle. args contains .groups and .statics spawned 
-- "empty" -- all spawns have been killed, args is empty 
-- "wiped" -- preWipe executed 
-- "<none" -- something went wrong 

function cloneZones.invokeCallbacks(theZone, reason, args)
	if not theZone then return end 
	if not reason then reason = "<none>" end 
	if not args then args = {} end 
	
	-- invoke anyone who wants to know that a group 
	-- of people was rescued.
	for idx, cb in pairs(cloneZones.callbacks) do 
		cb(theZone, reason, args)
	end
end

-- group translation orig id 

--
-- reading zones
--
function cloneZones.partOfGroupDataInZone(theZone, theUnits)
	local zP = cfxZones.getPoint(theZone)
	zP.y = 0
	
	for idx, aUnit in pairs(theUnits) do 
		local uP = {}
		uP.x = aUnit.x 
		uP.y = 0
		uP.z = aUnit.y -- !! y-z
		local dist = dcsCommon.dist(uP, zP)
		if dist <= theZone.radius then return true  end 
	end 
	return false 
end

function cloneZones.allGroupsInZoneByData(theZone) 
	local theGroupsInZone = {}
	local radius = theZone.radius 
	for groupName, groupData in pairs(cfxMX.groupDataByName) do 
		if groupData.units then 
			if cloneZones.partOfGroupDataInZone(theZone, groupData.units) then 
				theGroup = Group.getByName(groupName)
				table.insert(theGroupsInZone, theGroup)
			end
		end
	end
	return theGroupsInZone
end

function cloneZones.createClonerWithZone(theZone) -- has "Cloner"
	if cloneZones.verbose then 
		trigger.action.outText("+++clnZ: new cloner " .. theZone.name, 30)
	end

	local localZones = cloneZones.allGroupsInZoneByData(theZone)  
	local localObjects = cfxZones.allStaticsInZone(theZone)
	theZone.cloner = true -- this is a cloner zoner 
	theZone.mySpawns = {}
	theZone.myStatics = {}
	theZone.origin = cfxZones.getPoint(theZone) -- save reference point for all groupVectors 
	
	-- source tells us which template to use. it can be the following:
	-- nothing (no attribute) - then we use whatever groups are in zone to 
	-- spawn as template 
	-- name of another spawner that provides the template 
	-- we can't simply use a group name as we lack the reference 
	-- location for delta 
	if cfxZones.hasProperty(theZone, "source") then 
		theZone.source = cfxZones.getStringFromZoneProperty(theZone, "source", "<none>")
		if theZone.source == "<none>" then theZone.source = nil end 
	end 
	
	if not theZone.source then 
		theZone.cloneNames = {} -- names of the groups. only present in template spawners
		theZone.staticNames = {} -- names of all statics. only present in templates
		
		for idx, aGroup in pairs(localZones) do
			local gName = aGroup:getName()
			if gName then 
				table.insert(theZone.cloneNames, gName)
				table.insert(theZone.mySpawns, aGroup) -- collect them for initial despawn
				-- now get group data and save a lookup for 
				-- resolving internal references 
				local rawData, cat, ctry = cfxMX.getGroupFromDCSbyName(gName)
				local origID = rawData.groupId
--				cloneZones.templateGroups[gName] = origID 
--				cloneZones.templateGroupsReverse[origID] = gName
			end 	
		end
		
		for idx, aStatic in pairs (localObjects) do 
			local sName = aStatic:getName()
			if sName then 
				table.insert(theZone.staticNames, sName)
				table.insert(theZone.myStatics, aStatic)
			end
		end
		
		cloneZones.despawnAll(theZone) 
		if (#theZone.cloneNames + #theZone.staticNames)	< 1 then 
			if cloneZones.verbose then 
				trigger.action.outText("+++clnZ: WARNING - Template in clone zone <" .. theZone.name .. "> is empty", 30)
			end 
			theZone.cloneNames = nil
			theZone.staticNames = nil 
		end
		if cloneZones.verbose then 
			trigger.action.outText(theZone.name .. " clone template saved", 30)
		end
	end
	
	-- f? and spawn? map to the same 
	if cfxZones.hasProperty(theZone, "f?") then 
		theZone.spawnFlag = cfxZones.getStringFromZoneProperty(theZone, "f?", "none")
		theZone.lastSpawnValue = trigger.misc.getUserFlag(theZone.spawnFlag) -- save last value
	end
	
	if cfxZones.hasProperty(theZone, "in?") then 
		theZone.spawnFlag = cfxZones.getStringFromZoneProperty(theZone, "in?", "none")
		theZone.lastSpawnValue = trigger.misc.getUserFlag(theZone.spawnFlag) -- save last value
	end
	
	if cfxZones.hasProperty(theZone, "spawn?") then 
		theZone.spawnFlag = cfxZones.getStringFromZoneProperty(theZone, "spawn?", "none")
		theZone.lastSpawnValue = trigger.misc.getUserFlag(theZone.spawnFlag) -- save last value
	end
	
	-- synonyms
	if cfxZones.hasProperty(theZone, "clone?") then 
		theZone.spawnFlag = cfxZones.getStringFromZoneProperty(theZone, "clone?", "none")
		theZone.lastSpawnValue = trigger.misc.getUserFlag(theZone.spawnFlag) -- save last value
	end
	
	-- deSpawn?
	if cfxZones.hasProperty(theZone, "deSpawn?") then 
		theZone.deSpawnFlag = cfxZones.getStringFromZoneProperty(theZone, "deSpawn?", "none")
		theZone.lastDeSpawnValue = trigger.misc.getUserFlag(theZone.deSpawnFlag) -- save last value
	end
	
	theZone.onStart = cfxZones.getBoolFromZoneProperty(theZone, "onStart", false)
	
	theZone.moveRoute = cfxZones.getBoolFromZoneProperty(theZone, "moveRoute", false)
	
	theZone.preWipe = cfxZones.getBoolFromZoneProperty(theZone, "preWipe", false)
	
	if cfxZones.hasProperty(theZone, "empty+1") then 
		theZone.emptyFlag = cfxZones.getNumberFromZoneProperty(theZone, "empty+1", "<None>") -- note string on number default
	end
	
	if cfxZones.hasProperty(theZone, "empty!") then 
		theZone.emptyBangFlag = cfxZones.getNumberFromZoneProperty(theZone, "empty!", "<None>") -- note string on number default
	end
	
	theZone.method = cfxZones.getStringFromZoneProperty(theZone, "method", "inc")
	
	if cfxZones.hasProperty(theZone, "masterOwner") then 
		theZone.masterOwner = cfxZones.getStringFromZoneProperty(theZone, "masterOwner", "<none>")
	end
	
	theZone.turn = cfxZones.getNumberFromZoneProperty(theZone, "turn", 0)
	
	-- we end with clear plate 
end

-- 
-- spawning, despawning
--

function cloneZones.despawnAll(theZone) 
	if cloneZones.verbose then 
		trigger.action.outText("wiping <" .. theZone.name .. ">", 30)
	end 
	for idx, aGroup in pairs(theZone.mySpawns) do 
		--trigger.action.outText("++clnZ: despawn all " .. aGroup.name, 30)
		
		if aGroup:isExist() then 
			cloneZones.invokeCallbacks(theZone, "will despawn group", aGroup)
			Group.destroy(aGroup)
		end 
	end
	for idx, aStatic in pairs(theZone.myStatics) do 
		-- warning! may be mismatch because we are looking at groups
		-- not objects. let's see
		if aStatic:isExist() then 
			if cloneZones.verbose then 
				trigger.action.outText("Destroying static <" .. aStatic:getName() .. ">", 30)
			end 
			cloneZones.invokeCallbacks(theZone, "will despawn static", aStatic)
			Object.destroy(aStatic) -- we don't aStatio:destroy() to find out what it is
		end 
	end
	theZone.mySpawns = {}
	theZone.myStatics = {}
end

function cloneZones.updateLocationsInGroupData(theData, zoneDelta, adjustAllWaypoints)
	
	-- remember that zoneDelta's [z] modifies theData's y!!
	theData.x = theData.x + zoneDelta.x 
	theData.y = theData.y + zoneDelta.z -- !!!
	local units = theData.units 
	for idx, aUnit in pairs(units) do 
		aUnit.x = aUnit.x + zoneDelta.x 
		aUnit.y = aUnit.y + zoneDelta.z -- again!!!!
	end
	-- now modifiy waypoints. we ALWAYS adjust the  
	-- first waypoint, but only all others if asked 
	-- to 
	local theRoute = theData.route 
	if theRoute then 
		local thePoints = theRoute.points 
		if thePoints and #thePoints > 0 then 
			if adjustAllWaypoints then  
				for i=1, #thePoints do 
					thePoints[i].x = thePoints[i].x + zoneDelta.x 
					thePoints[i].y = thePoints[i].y + zoneDelta.z -- (!!)

				end
			else 
				-- only first point 
				thePoints[1].x = thePoints[1].x + zoneDelta.x 
				thePoints[1].y = thePoints[1].y + zoneDelta.z -- (!!)
			end 
			
			-- if there is an airodrome id given in first waypoint, 
			-- adjust for closest location 
			local firstPoint = thePoints[1]
			if firstPoint.airdromeId then 
				trigger.action.outText("first: airdrome adjust for " .. theData.name .. " now is " .. firstPoint.airdromeId, 30)
				local loc = {}
				loc.x = firstPoint.x
				loc.y = 0
				loc.z = firstPoint.y 
				local bestAirbase = dcsCommon.getClosestAirbaseTo(loc)
				firstPoint.airdromeId = bestAirbase:getID()
				trigger.action.outText("first: adjusted to " .. firstPoint.airdromeId, 30)
			end
			
			-- adjust last point (landing)
			if #thePoints > 1 then 
				local lastPoint = thePoints[#thePoints]
				if firstPoint.airdromeId then 
					trigger.action.outText("last: airdrome adjust for " .. theData.name .. " now is " .. lastPoint.airdromeId, 30)
					local loc = {}
					loc.x = lastPoint.x
					loc.y = 0
					loc.z = lastPoint.y 
					local bestAirbase = dcsCommon.getClosestAirbaseTo(loc)
					lastPoint.airdromeId = bestAirbase:getID()
					trigger.action.outText("last: adjusted to " .. lastPoint.airdromeId, 30)
				end
			
			end
		end
	end
end
function cloneZones.uniqueID()
	local uid = cloneZones.uniqueCounter
	cloneZones.uniqueCounter = cloneZones.uniqueCounter + 1
	return uid 
end

function cloneZones.uniqueNameGroupData(theData)  
	theData.name = dcsCommon.uuid(theData.name)
	local units = theData.units 
	for idx, aUnit in pairs(units) do 
		aUnit.name = dcsCommon.uuid(aUnit.name)
	end 
end 

function cloneZones.uniqueIDGroupData(theData)
	theData.groupId = cloneZones.uniqueID()
end

function cloneZones.uniqueIDUnitData(theData)
	if not theData then return end 
	if not theData.units then return end 
	local units = theData.units 
	for idx, aUnit in pairs(units) do 
		aUnit.CZorigID = aUnit.unitId 
		aUnit.unitId = cloneZones.uniqueID()
		aUnit.CZTargetID = aUnit.unitId
	end 

end

function cloneZones.resolveOwnership(spawnZone, ctry)
	if not spawnZone.masterOwner then return ctry end 

	local masterZone = cfxZones.getZoneByName(spawnZone.masterOwner)
	if not masterZone then 
		trigger.action.outText("+++clnZ: cloner " .. spawnZone.name .. " could not fine master owner <" .. spawnZone.masterOwner .. ">", 30)
		return ctry 
	end
	
	if not masterZone.owner then 
		return ctry 
	end
	
	ctry = dcsCommon.getACountryForCoalition(masterZone.owner)
	return ctry 
end

--
-- resolve external group references 
-- 

function cloneZones.resolveGroupID(gID, rawData, dataTable, reason)
	local resolvedID = gID
	local myOName = rawData.CZorigName
	local groupName = cfxMX.groupNamesByID[gID]
	--trigger.action.outText("Resolve for <" .. myOName .. "> the external ID: " .. gID .. " --> " .. groupName .. " for <" .. reason.. "> task", 30)
	
	-- first, check if this an internal reference, i.e. inside the same 
	-- zone template 
	for idx, otherData in pairs(dataTable) do
		-- look in own data table 
		if otherData.CZorigName == groupName then 
			-- using cfxMX for clarity only (name access)
			resolvedID = otherData.CZTargetID
			--trigger.action.outText("resolved (internally) " .. gID .. " to " .. resolvedID, 30)
			return resolvedID
		end
	end
	
	-- now check if we have spawned this before 
	local lastClone = cloneZones.groupXlate[gID]
	if lastClone then 
		resolvedID = lastClone
		--trigger.action.outText("resolved (EXT) " .. gID .. " to " .. resolvedID, 30)
		return resolvedID	
	end
	
	-- if we get here, reference is not to a cloned item 
	--trigger.action.outText("resolved " .. gID .. " to " .. resolvedID, 30)
	return resolvedID
end 

function cloneZones.resolveUnitID(uID, rawData, dataTable, reason)
-- also resolves statics as they share ID with units 
	local resolvedID = uID
	--trigger.action.outText("Resolve reference to unitId <" .. uID .. "> for <" .. reason.. "> task", 30)
	
	-- first, check if this an internal reference, i.e. inside the same 
	-- zone template 
	for idx, otherData in pairs(dataTable) do
		-- iterate all units
		for idy, aUnit in pairs(otherData.units) do 
			if aUnit.CZorigID == uID then 
				resolvedID = aUnit.CZTargetID
				--trigger.action.outText("resolved (internally) " .. uID .. " to " .. resolvedID, 30)
				return resolvedID
			end
		end		

	end
	
	-- now check if we have spawned this before 
	local lastClone = cloneZones.unitXlate[uID]
	if lastClone then 
		resolvedID = lastClone
		--trigger.action.outText("resolved (U-EXT) " .. uID .. " to " .. resolvedID, 30)
		return resolvedID	
	end
	
	-- if we get here, reference is not to a cloned item 
	--trigger.action.outText("resolved G-" .. uID .. " to " .. resolvedID, 30)
	return resolvedID
end 

function cloneZones.resolveStaticLinkUnit(uID)
	local resolvedID = uID
	local lastClone = cloneZones.unitXlate[uID]
	if lastClone then 
		resolvedID = lastClone
		--trigger.action.outText("resolved (U-EXT) " .. uID .. " to " .. resolvedID, 30)
		return resolvedID	
	end
	return resolvedID
end

function cloneZones.resolveWPReferences(rawData, theZone, dataTable)
-- check to see if we really need data table, as we have theZone 
-- perform a check of route for group or unit references 
	if not rawData then return end 
	local myOName = rawData.CZorigName 

	if rawData.route and rawData.route.points then 
		local points = rawData.route.points 
		for idx, aPoint in pairs(points) do 
			-- check if there is a link unit here and resolve 
			if aPoint.linkUnit then 
				local gID = aPoint.linkUnit
				local resolvedID = cloneZones.resolveUnitID(gID, rawData, dataTable, "linkUnit")
				aPoint.linkUnit = resolvedID
				--trigger.action.outText("resolved link unit to "..resolvedID .. " for " .. rawData.name, 30)
			end
			
			-- iterate all tasks assigned to point
			local task = aPoint.task
			if task and task.params and task.params.tasks then
				local tasks = task.params.tasks 
				for idy, taskData in pairs(tasks) do
					-- resolve group references in TASKS
					if taskData.id and taskData.params and taskData.params.groupId
					then 
						-- we resolve group reference 
						local gID = taskData.params.groupId
						local resolvedID = cloneZones.resolveGroupID(gID, rawData, dataTable, taskData.id)
						taskData.params.groupId = resolvedID
						
					end
					
					-- resolve unit references in TASKS
					if taskData.id and taskData.params and taskData.params.unitId
					then 
						-- we don't look for keywords, we simply resolve 
						local uID = taskData.params.unitId 
						local resolvedID = cloneZones.resolveUnitID(uID, rawData, dataTable, taskData.id)
						taskData.params.unitId = resolvedID
					end
					
					-- resolve unit references in ACTIONS
					if taskData.params and taskData.params.action and 
					taskData.params.action.params and taskData.params.action.params.unitId then 
						local uID = taskData.params.action.params.unitId 
						local resolvedID = cloneZones.resolveUnitID(uID, rawData, dataTable, "Action")
						taskData.params.action.params.unitId = resolvedID
					end
				end	
			end
		end
	end 
end 

function cloneZones.resolveReferences(theZone, dataTable) 
	-- when an action refers to another group, we check if 
	-- the group referred to is also a clone, and update 
	-- the reference to the newest incardnation 
	
	for idx, rawData in pairs(dataTable) do 
		-- resolve references in waypoints
		cloneZones.resolveWPReferences(rawData, theZone, dataTable)
	end
end

function cloneZones.spawnWithTemplateForZone(theZone, spawnZone)
	-- theZone is the cloner with the template
	-- spawnZone is the spawner with settings 
	--if not spawnZone then spawnZone = theZone end 
	local newCenter = cfxZones.getPoint(spawnZone) 
	-- calculate zoneDelta, is added to all vectors 
	local zoneDelta = dcsCommon.vSub(newCenter, theZone.origin)
	
	local spawnedGroups = {}
	local spawnedStatics = {}
	local dataToSpawn = {}
	
	for idx, aGroupName in pairs(theZone.cloneNames) do 
		local rawData, cat, ctry = cfxMX.getGroupFromDCSbyName(aGroupName)
		rawData.CZorigName = rawData.name -- save original group name
		local origID = rawData.groupId -- save original group ID 
		rawData.CZorigID = origID 
		cloneZones.uniqueIDGroupData(rawData) -- assign unique ID we know 
		cloneZones.uniqueIDUnitData(rawData) -- assign unique ID for units -- saves old unitId as CZorigID
		rawData.CZTargetID = rawData.groupId -- save 
		if rawData.name ~= aGroupName then 
			trigger.action.outText("Clone: FAILED name check", 30)
		end
		
		-- now use raw data to spawn and see if it works outabox
		local theCat = cfxMX.catText2ID(cat)
		rawData.CZtheCat = theCat -- save cat 
		
		-- update their position if not spawning to exact same location 
		cloneZones.updateLocationsInGroupData(rawData, zoneDelta, spawnZone.moveRoute)
		
		-- apply turning 
		dcsCommon.rotateGroupData(rawData, spawnZone.turn, newCenter.x, newCenter.z)
		
		-- make sure unit and group names are unique 
		cloneZones.uniqueNameGroupData(rawData)
		
		-- see what country we spawn for
		ctry = cloneZones.resolveOwnership(spawnZone, ctry)
		rawData.CZctry = ctry -- save ctry 
		table.insert(dataToSpawn, rawData)
	end 
	
	-- now resolve references to other cloned units for all raw data
	-- we must do this BEFORE we spawn
	cloneZones.resolveReferences(theZone, dataToSpawn)
	
	-- now spawn all raw data 
	for idx, rawData in pairs (dataToSpawn) do 
		-- now spawn and save to clones
		local theGroup = coalition.addGroup(rawData.CZctry, rawData.CZtheCat, rawData)
		table.insert(spawnedGroups, theGroup)
		
		--trigger.action.outText("spawned group " .. rawData.name .. "consisting of", 30)
		
		-- update groupXlate table 
		local newGroupID = theGroup:getID() -- new ID assigned by DCS
		local origID = rawData.CZorigID -- before we materialized
		cloneZones.groupXlate[origID] = newGroupID
		-- now also save all units for references 	
		-- and verify assigned vs target ID 
		for idx, aUnit in pairs(rawData.units) do 
			-- access the proposed name 
			local uName = aUnit.name 
			local gUnit = Unit.getByName(uName)
			if gUnit then 
				-- unit exists. compare planned and assigned ID
				local uID = tonumber(gUnit:getID())
				if uID == aUnit.CZTargetID then 
					--trigger.action.outText("unit " .. uName .. "#"..uID, 30)
					-- all good 
				else 
					trigger.action.outText("clnZ: post-clone verification failed for unit <" .. uName .. ">: ÎD mismatch: " .. uID .. " -- " .. aUnit.CZTargetID, 30)
				end 
				cloneZones.unitXlate[aUnit.CZorigID] = uID 
			else 
				trigger.action.outText("clnZ: post-clone verifiaction failed for unit <" .. uName .. ">: not found", 30) 
			end 
		end
		
		-- check if our assigned ID matches the handed out by 
		-- DCS
		if newGroupID == rawData.CZTargetID then 
			-- we are good
		else 
			trigger.action.outText("clnZ: MISMATCH " .. rawData.name .. " target ID " .. rawData.CZTargetID .. " does not match " .. newGroupID, 30)
		end 

		cloneZones.invokeCallbacks(theZone, "did spawn group", theGroup)
	end

	-- static spawns 
	for idx, aStaticName in pairs(theZone.staticNames) do 
		local rawData, cat, ctry, parent = cfxMX.getStaticFromDCSbyName(aStaticName) -- returns a UNIT data block
		
		if not rawData then
			trigger.action.outText("Static Clone: no such group <"..aStaticName .. ">", 30)			
		elseif rawData.name == aStaticName then 
			-- all good
		else 
			trigger.action.outText("Static Clone: FAILED name check for <" .. aStaticName .. ">", 30)
		end
		local origID = rawData.unitId -- save original unit ID
		rawData.CZorigID = origID 
				
		-- now use raw data to spawn and see if it works outabox
		--local theCat = cfxMX.catText2ID(cat) -- will be "static"
		
		-- move origin 
		rawData.x = rawData.x + zoneDelta.x 
		rawData.y = rawData.y + zoneDelta.z -- !!!
	
		-- apply turning 
		dcsCommon.rotateUnitData(rawData, spawnZone.turn, newCenter.x, newCenter.z)
		
		-- make sure static name is unique and remember original 
		rawData.name = dcsCommon.uuid(rawData.name)
		rawData.unitId = cloneZones.uniqueID()  
		rawData.CZTargetID = rawData.unitId 
		
		-- see what country we spawn for
		ctry = cloneZones.resolveOwnership(spawnZone, ctry)
		
		-- handle linkUnit if provided  
		if rawData.linkUnit then 
			--trigger.action.outText("has link to " .. rawData.linkUnit, 30)
			local lU = cloneZones.resolveStaticLinkUnit(rawData.linkUnit)
			--trigger.action.outText("resolved to " .. lU, 30)
			rawData.linkUnit = lU 
			if not rawData.offsets then 
				rawData.offsets = {}
				rawData.offsets.angle = 0
				rawData.offsets.x = 0
				rawData.offsets.y = 0
				--trigger.action.outText("clnZ: link required offset for " .. rawData.name, 30)
			end 
			rawData.offsets.y = rawData.offsets.y - zoneDelta.z 
			rawData.offsets.x = rawData.offsets.x - zoneDelta.x 
			rawData.offsets.angle = rawData.offsets.angle + spawnZone.turn
			rawData.linkOffset = true 
--			trigger.action.outText("zone deltas are " .. zoneDelta.x .. ", " .. zoneDelta.y, 30)
		end
		
		local theStatic = coalition.addStaticObject(ctry, rawData)
		local newStaticID = tonumber(theStatic:getID()) 
		table.insert(spawnedStatics, theStatic)
		-- we don't mix groups with units, so no lookup tables for 
		-- statics 
		if newStaticID == rawData.CZTargetID then 
--			trigger.action.outText("Static ID OK: " .. newStaticID  .. " for " .. rawData.name, 30)
		else 
			trigger.action.outText("Static ID mismatch: " .. newStaticID .. " vs (target) " .. rawData.CZTargetID .. " for " .. rawData.name, 30)
		end
		cloneZones.unitXlate[origID] = newStaticID -- same as units 
		
		cloneZones.invokeCallbacks(theZone, "did spawn static", theStatic)
		--]]--
		if cloneZones.verbose then 
			trigger.action.outText("Static spawn: spawned " .. aStaticName, 30)
		end 
	end	
	local args = {}
	args.groups = spawnedGroups
	args.statics = spawnedStatics
	cloneZones.invokeCallbacks(theZone, "spawned", args)
	return spawnedGroups, spawnedStatics 
end

function cloneZones.spawnWithCloner(theZone) 
	if not theZone then 
		trigger.action.outText("+++clnZ: nil zone on spawnWithCloner", 30)
		return 
	end
	if not theZone.cloner then 
		trigger.action.outText("+++clnZ: spawnWithCloner invoked with non-cloner <" .. theZone.name .. ">", 30)
		return 
	end 
	
	-- force spawn with this spawner 
	local templateZone = theZone
	if theZone.source then 
		-- we use a different zone for templates
		-- souce can be a comma separated list
		local templateName = theZone.source
		if dcsCommon.containsString(templateName, ",") then 
			local allNames = templateName 
			local templates = dcsCommon.splitString(templateName, ",")
			templateName = dcsCommon.pickRandom(templates)
			templateName = dcsCommon.trim(templateName) 
			if cloneZones.verbose then 
				trigger.action.outText("+++clnZ: picked random template <" .. templateName .."> for from <" .. allNames .. "> for cloner " .. theZone.name, 30)
			end 
		end
		
		local newTemplate = cloneZones.getCloneZoneByName(templateName)
		if not newTemplate then 
			if cloneZones.verbose then 
				trigger.action.outText("+++clnZ: no clone source with name <" .. templateName .."> for cloner " .. theZone.name, 30)
			end  
			return 
		end
		templateZone = newTemplate 
	end
	
	-- make sure our template is filled 
	if not templateZone.cloneNames then 
		if cloneZones.verbose then 
			trigger.action.outText("+++clnZ: clone source template <".. templateZone.name .. "> for clone zone <" .. theZone.name .."> is empty", 30)
		end 
		return 
	end

	-- pre-Wipe?
	if theZone.preWipe then 
		cloneZones.despawnAll(theZone)
		cloneZones.invokeCallbacks(theZone, "wiped", {})
	end
	

	local theClones, theStatics = cloneZones.spawnWithTemplateForZone(templateZone, theZone)
	-- reset hasClones so we know our spawns are full and we can 
	-- detect complete destruction
	if (theClones and #theClones > 0) or 
	   (theStatics and #theStatics > 0)
	then 
		theZone.hasClones = true 
		theZone.mySpawns = theClones 
		theZone.myStatics = theStatics 
	else 
		theZone.hasClones = false 
		theZone.mySpawns = {}
		theZone.myStatics = {}
	end
end

function cloneZones.countLiveUnits(theZone)
	if not theZone then return 0 end 
	local count = 0
	-- count units 
	if theZone.mySpawns then 
		for idx, aGroup in pairs(theZone.mySpawns) do 
			if aGroup:isExist() then 
				local allUnits = aGroup:getUnits()
				for idy, aUnit in pairs(allUnits) do 
					if aUnit:isExist() and aUnit:getLife() >= 1 then 
						count = count + 1
					end
				end
			end
		end
	end
	
	-- count statics 
	if theZone.myStatics then 
		for idx, aStatic in pairs(theZone.myStatics) do 
			if aStatic:isExist() and aStatic:getLife() >= 1 then 
				count = count + 1
			end
		end
	end
	return count 
end

function cloneZones.hasLiveUnits(theZone)
	if not theZone then return 0 end 
	if theZone.mySpawns then 
		for idx, aGroup in pairs(theZone.mySpawns) do 
			if aGroup:isExist() then 
				local allUnits = aGroup:getUnits()
				for idy, aUnit in pairs(allUnits) do 
					if aUnit:isExist() and aUnit:getLife() >= 1 then 
						return true
					end
				end
			end
		end
	end 
	
	if theZone.myStatics then 
		for idx, aStatic in pairs(theZone.myStatics) do 
			if aStatic:isExist() and aStatic.getLife() >= 1 then 
				return true 
			end 
		end
	end
	
	return false
end

-- old code, deprecated
function cloneZones.pollFlag(flagNum, method)
	-- we currently ignore method 
	local num = trigger.misc.getUserFlag(flagNum)
	trigger.action.setUserFlag(flagNum, num+1)
end
--
-- UPDATE
--
function cloneZones.update()
	timer.scheduleFunction(cloneZones.update, {}, timer.getTime() + 1)
	
	for idx, aZone in pairs(cloneZones.cloners) do
		-- see if deSpawn was pulled. Must run before spawn
		if aZone.deSpawnFlag then 
			local currTriggerVal = trigger.misc.getUserFlag(aZone.deSpawnFlag)
			if currTriggerVal ~= aZone.lastDeSpawnValue then 
				if cloneZones.verbose then 
					trigger.action.outText("+++clnZ: DEspawn triggered for <" .. aZone.name .. ">", 30)
				end 
				cloneZones.despawnAll(aZone)
				aZone.lastDeSpawnValue = currTriggerVal
			end
		end
		
		-- see if we got spawn? command
		if aZone.spawnFlag then 
			local currTriggerVal = trigger.misc.getUserFlag(aZone.spawnFlag)
			if currTriggerVal ~= aZone.lastSpawnValue
			then 
				if cloneZones.verbose then 
					trigger.action.outText("+++clnZ: spawn triggered for <" .. aZone.name .. ">", 30)
				end 
				cloneZones.spawnWithCloner(aZone)
				aZone.lastSpawnValue = currTriggerVal
			end
		end
		
		-- empty handling 
		local isEmpty = cloneZones.countLiveUnits(aZone) < 1 and aZone.hasClones		
		if isEmpty then 
			-- see if we need to bang a flag 
			if aZone.emptyFlag then 
				cloneZones.pollFlag(aZone.emptyFlag)
			end 
			
			if aZone.emptyBangFlag then 
				cfxZones.pollFlag(aZone.emptyBangFlag, aZone.method)
			end
			-- invoke callbacks 
			cloneZones.invokeCallbacks(aZone, "empty", {}) 
			
			-- prevent isEmpty next pass
			aZone.hasClones = false 
		end
		
	end
end

function cloneZones.onStart()
	--trigger.action.outText("+++clnZ: Enter atStart", 30)
	for idx, theZone in pairs(cloneZones.cloners) do 
		if theZone.onStart then 
			if cloneZones.verbose then 
				trigger.action.outText("+++clnZ: atStart will spawn for <"..theZone.name .. ">", 30)
			end
			cloneZones.spawnWithCloner(theZone) 
			
		end 
	end
end

--
-- START 
--
function cloneZones.readConfigZone()
	local theZone = cfxZones.getZoneByName("cloneZonesConfig") 
	if not theZone then 
		if cloneZones.verbose then 
			trigger.action.outText("+++clnZ: NO config zone!", 30)
		end 
		return 
	end 
	
	cloneZones.verbose = cfxZones.getBoolFromZoneProperty(theZone, "verbose", false)
	
	if cloneZones.verbose then 
		trigger.action.outText("+++clnZ: read config", 30)
	end 
end

function cloneZones.start()
	-- lib check
	if not dcsCommon.libCheck then 
		trigger.action.outText("cfx Clone Zones requires dcsCommon", 30)
		return false 
	end 
	if not dcsCommon.libCheck("cfx Clone Zones", 
		cloneZones.requiredLibs) then
		return false 
	end
	
	-- read config 
	cloneZones.readConfigZone()
	
	-- process cloner Zones 
	local attrZones = cfxZones.getZonesWithAttributeNamed("cloner")
	
	-- now create an rnd gen for each one and add them
	-- to our watchlist 
	for k, aZone in pairs(attrZones) do 
		cloneZones.createClonerWithZone(aZone) -- process attribute and add to zone
		cloneZones.addCloneZone(aZone) -- remember it so we can smoke it
	end
	
	-- run through onStart 
	cloneZones.onStart() 
	
	-- start update 
	cloneZones.update()
	
	trigger.action.outText("cfx Clone Zones v" .. cloneZones.version .. " started.", 30)
	return true 
end


-- let's go!
if not cloneZones.start() then 
	trigger.action.outText("cf/x Clone Zones aborted: missing libraries", 30)
	cloneZones = nil 
end

--[[-- callback testing 
czcb = {}
function czcb.callback(theZone, reason, args)
	trigger.action.outText("clone CB: " .. theZone.name .. " with " .. reason, 30)
end
cloneZones.addCallback(czcb.callback)
--]]--

--[[--
	to resolve tasks 

	- AFAC 
		- FAC Assign group 
	- set freq for unit 
--]]--