modules/world: separate actors functions from main functions

gamecore/modules/world/baseworld.lua

@@ -114,6 +114,10 @@ end
 
 function BaseWorld:update(dt)
   self:updateMap(dt)
+  self:updateActors(dt)
+end
+
+function BaseWorld:updateActors(dt)
   for i,v in ipairs(self.actors) do
     v:update(dt)
   end
@@ -132,8 +136,12 @@ end
 function BaseWorld:draw(dt)
   self:drawBackgroundColor()
   self:drawMap()
+  self:drawActors()
+end
+
+function BaseWorld:drawActors()
   for i,v in ipairs(self.actors) do
-    v:draw(dt)
+    v:draw()
   end
 end