modules/world: use only the "actor" name

gamecore/modules/world/baseworld.lua

@@ -3,25 +3,25 @@ local BaseWorld = Object:extend()
 function BaseWorld:new(scene)
   self.scene = scene
 
-  self.entities = {}
+  self.actors = {}
 end
 
-function BaseWorld:registerEntity(entity)
+function BaseWorld:registerActor(actor)
-  table.insert(self.entities, entity)
+  table.insert(self.actors, actor)
 end
 
-function BaseWorld:countEntity()
+function BaseWorld:countActors()
-  return #self.entities
+  return #self.actors
 end
 
 function BaseWorld:update(dt)
-  for i,v in ipairs(self.entities) do
+  for i,v in ipairs(self.actors) do
     v:update(dt)
   end
 end
 
 function BaseWorld:draw(dt)
-  for i,v in ipairs(self.entities) do
+  for i,v in ipairs(self.actors) do
     v:draw(dt)
   end
 end