#ZONE - Trigger added OnAfterZoneEmpty and OnAfterObjectDead

Moose Development/Moose/Core/Zone.lua

@@ -605,10 +605,13 @@ function ZONE_BASE:Trigger(Objects)
   self:AddTransition("TriggerStopped","TriggerStart","TriggerRunning")
   self:AddTransition("*","EnteredZone","*")
   self:AddTransition("*","LeftZone","*")
+  self:AddTransition("*","ZoneEmpty","*")
+  self:AddTransition("*","ObjectDead","*")
   self:AddTransition("*","TriggerRunCheck","*")
   self:AddTransition("*","TriggerStop","TriggerStopped")
   self:TriggerStart()
   self.checkobjects = Objects
+  self.ObjectsInZone = false
   if UTILS.IsInstanceOf(Objects,"SET_BASE") then
     self.objectset = Objects.Set
   else
@@ -646,6 +649,22 @@ function ZONE_BASE:Trigger(Objects)
   -- @param #string Event Event.
   -- @param #string To To state.
   -- @param Wrapper.Controllable#CONTROLLABLE Controllable The controllable leaving the zone.
+  
+  --- On After "ObjectDead" event. An observed object has left the zone.
+  -- @function [parent=#ZONE_BASE] OnAfterObjectDead
+  -- @param #ZONE_BASE self
+  -- @param #string From From state.
+  -- @param #string Event Event.
+  -- @param #string To To state.
+  -- @param Wrapper.Controllable#CONTROLLABLE Controllable The controllable which died. Might be nil.
+  
+  --- On After "ZoneEmpty" event. All observed objects have left the zone or are dead.
+  -- @function [parent=#ZONE_BASE] OnAfterZoneEmpty
+  -- @param #ZONE_BASE self
+  -- @param #string From From state.
+  -- @param #string Event Event.
+  -- @param #string To To state.
+  
 end
 
 --- (Internal) Check the assigned objects for being in/out of the zone
@@ -659,9 +678,13 @@ function ZONE_BASE:_TriggerCheck(fromstart)
     -- just earmark everyone in/out
     for _,_object in pairs(objectset) do
       local obj = _object -- Wrapper.Controllable#CONTROLLABLE
-      if not obj.TriggerInZone then obj.TriggerInZone = {} end
+      if not obj.TriggerInZone then 
+        obj.TriggerInZone = {}
+        obj.TriggerZoneDeadNotification = false 
+      end
       if obj and obj:IsAlive() and self:IsCoordinateInZone(obj:GetCoordinate()) then
         obj.TriggerInZone[self.ZoneName] = true
+        self.ObjectsInZone = true
       else
         obj.TriggerInZone[self.ZoneName] = false
       end
@@ -669,6 +692,7 @@ function ZONE_BASE:_TriggerCheck(fromstart)
     end
   else
     -- Check for changes
+    local objcount = 0
     for _,_object in pairs(objectset) do
       local obj = _object -- Wrapper.Controllable#CONTROLLABLE
       if obj and obj:IsAlive() then
@@ -683,11 +707,20 @@ function ZONE_BASE:_TriggerCheck(fromstart)
         -- is obj in zone?
         local inzone = self:IsCoordinateInZone(obj:GetCoordinate())
         --self:I("Object "..obj:GetName().." is in zone: "..tostring(inzone))
+        if inzone and obj.TriggerInZone[self.ZoneName] then
+          -- just count
+          objcount = objcount + 1
+          self.ObjectsInZone = true
+          obj.TriggerZoneDeadNotification = false
+        end
         if inzone and not obj.TriggerInZone[self.ZoneName] then
           -- wasn't in zone before
           --self:I("Newly entered")
           self:__EnteredZone(0.5,obj)
           obj.TriggerInZone[self.ZoneName] = true
+          objcount = objcount + 1
+          self.ObjectsInZone = true
+          obj.TriggerZoneDeadNotification = false
         elseif (not inzone) and obj.TriggerInZone[self.ZoneName] then
           -- has left the zone
           --self:I("Newly left")
@@ -696,8 +729,21 @@ function ZONE_BASE:_TriggerCheck(fromstart)
         else
           --self:I("Not left or not entered, or something went wrong!")
         end
+      else
+        -- object dead
+        if not obj.TriggerZoneDeadNotification == true then
+          obj.TriggerInZone = nil
+          self:__ObjectDead(0.5,obj)
+          obj.TriggerZoneDeadNotification = true
+        end
       end
     end
+    -- zone empty?
+    if objcount == 0 and self.ObjectsInZone == true then
+      -- zone was not but is now empty
+      self.ObjectsInZone = false
+      self:__ZoneEmpty(0.5)
+    end
   end
   return self
 end

Moose Development/Moose/Wrapper/Group.lua

@@ -2816,7 +2816,7 @@ do -- Event Handling
 
     self:EventDispatcher():Reset( self )
 
-    for UnitID, UnitData in pairs( self:GetUnits() ) do
+    for UnitID, UnitData in pairs( self:GetUnits() or {}) do
       UnitData:ResetEvents()
     end