Added optional despawn timers to JTAC and to Troops

CTLD.lua

@@ -16,15 +16,8 @@
 	    - jmontleon - https://github.com/jmontleon
 	    - emilianomolina - https://github.com/emilianomolina
 
-    Version: 1.72 - 18/02/2018
-      - Bug fix for crate spam
-      - Improved JTAC Performance - priority & targeting
-      - Added JTAC report for in view
-      - Added ability to set maximum group size that can be carried
-      - Added new sling load crates
-      - Fixed bug where crates and / or groups would disappear
-      - Fixed bug where count in zone wouldn't work for mission crates
-      - Delayed config of F10 menu and other scheduled functions so they can be overwritten by mission if a user wants
+    Version: 1.73 - 15/04/2018
+      - Allow minimum distance from friendly logistics to be set
  ]]
 
 ctld = {} -- DONT REMOVE!
@@ -54,6 +47,8 @@ ctld.maximumMoveDistance = 2000 -- max distance for troops to move from drop poi
 
 ctld.minimumDeployDistance = 1000 -- minimum distance from a friendly pickup zone where you can deploy a crate
 
+ctld.despawnTroopsTimer = -1 -- if this value is a positive number, any deployed troops will despawn after that amount of seconds have elapsed
+
 ctld.numberOfTroops = 10 -- default number of troops to load on a transport heli or C-130 
 							-- also works as maximum size of group that'll fit into a helicopter unless overridden
 ctld.enableFastRopeInsertion = true -- allows you to drop troops by fast rope
@@ -137,6 +132,8 @@ ctld.JTAC_location = true -- shows location of target in JTAC message
 
 ctld.JTAC_lock = "all" -- "vehicle" OR "troop" OR "all" forces JTAC to only lock vehicles or troops or all ground units
 
+ctld.JTAC_despawnTimer = -1 -- if this value is a positive number, any deployed JTACS will despawn after that amount of seconds have elapsed
+
 -- ***************** Pickup, dropoff and waypoint zones *****************
 
 -- Available colors (anything else like "none" disables smoke): "green", "red", "white", "orange", "blue", "none",
@@ -1662,6 +1659,32 @@ function ctld.troopsOnboard(_heli, _troops)
     end
 end
 
+-- tracks the troops dropped or JTACS
+-- stores group name and expiry time -- reset on redrop
+ctld.droppedTroopsTracker = {}
+
+function ctld.despawnTimer(groupName,despawnTimer)
+
+    if despawnTimer > 0 then
+
+        -- resets timer if time reused
+        ctld.droppedTroopsTracker[groupName] = (timer.getTime() +despawnTimer) - 1
+
+        timer.scheduleFunction(function()
+
+            -- checks timer hasnt been reset
+            if  ctld.droppedTroopsTracker[groupName] < timer.getTime() then
+                local group = Group.getByName(groupName)
+
+                if group then
+                    group:destroy()
+                end
+            end
+
+        end, nil, timer.getTime() + ctld.despawnTroopsTimer)
+    end
+end
+
 -- if its dropped by AI then there is no player name so return the type of unit
 function ctld.getPlayerNameOrType(_heli)
 
@@ -1758,6 +1781,9 @@ function ctld.deployTroops(_heli, _troops)
 
                     ctld.processCallback({unit = _heli, unloaded = _droppedTroops, action = "dropped_troops"})
 
+                    -- create timer
+                    ctld.despawnTimer(_droppedTroops:getName(),ctld.despawnTroopsTimer)
+
 
                 else
                     --extract zone!
@@ -1799,12 +1825,18 @@ function ctld.deployTroops(_heli, _troops)
 
                 ctld.processCallback({unit = _heli, unloaded = _droppedVehicles, action = "dropped_vehicles"})
 
+                -- create timer
+                ctld.despawnTimer(_droppedVehicles:getName(),ctld.despawnTroopsTimer)
+
+
                 trigger.action.outTextForCoalition(_heli:getCoalition(), ctld.getPlayerNameOrType(_heli) .. " dropped vehicles from " .. _heli:getTypeName() .. " into combat", 10)
             end
         end
     end
 end
 
+
+
 function ctld.insertIntoTroopsArray(_troopType,_count,_troopArray)
 
     for _i = 1, _count do
@@ -2891,7 +2923,7 @@ function ctld.unpackCrates(_arguments)
             local _crate = ctld.getClosestCrate(_heli, _crates)
 
 
-            if ctld.inLogisticsZone(_heli) == true  or  ctld.farEnoughFromLogisticZone(_heli) == true then
+            if ctld.inLogisticsZone(_heli) == true  or  ctld.farEnoughFromLogisticZone(_heli) == false then
 
                 ctld.displayMessageToGroup(_heli, "You can't unpack that here! Take it to where it's needed!", 20)
 
@@ -2971,6 +3003,9 @@ function ctld.unpackCrates(_arguments)
                         --put to the end
                         table.insert(ctld.jtacGeneratedLaserCodes, _code)
 
+                        -- create timer
+                        ctld.despawnTimer(_spawnedGroups:getName(),ctld.JTAC_despawnTimer)
+
                         ctld.JTACAutoLase(_spawnedGroups:getName(), _code) --(_jtacGroupName, _laserCode, _smoke, _lock, _colour)
                     end
                 end
@@ -4410,8 +4445,9 @@ function ctld.farEnoughFromLogisticZone(_heli)
 
             --get distance
             local _dist = ctld.getDistance(_heliPoint, _logistic:getPoint())
-
+            -- env.info("DIST ".._dist)
             if _dist <= ctld.minimumDeployDistance then
+                -- env.info("TOO CLOSE ".._dist)
                 _farEnough = false
             end
         end