diff --git a/gamecore/modules/world/baseworld.lua b/gamecore/modules/world/baseworld.lua
index 375b2dc..02007ad 100644
--- a/gamecore/modules/world/baseworld.lua
+++ b/gamecore/modules/world/baseworld.lua
@@ -121,32 +121,6 @@ function BaseWorld:removeActor(actor)
   end
 end
 
-function BaseWorld:moveActor(actor, x, y, filter)
-  -- as the baseworld have no collision function, we return empty collision
-  -- datas, but from the same type than bump2D will return
-  return x, y, {}, 0
-end
-
-function BaseWorld:checkCollision(actor, x, y, filter)
-  -- as the baseworld have no collision function, we return empty collision
-  -- datas, but from the same type than bump2D will return
-  return x, y, {}, 0
-end
-
-function BaseWorld:queryRect(x, y, w, h)
-  local query = {}
-  local x2, y2 = x + w, y + h
-  for i,v in ipairs(self.actors) do
-    if (v.x >= x) and (v.x + v.w >= x1) and
-       (v.y >= y) and (v.y + v.h >= y1) then
-
-      table.insert(query, v)
-    end
-  end
-
-  return v
-end
-
 function BaseWorld:countActors()
   return #self.actors
 end
@@ -174,6 +148,48 @@ function BaseWorld:getVisibleActors(id)
   return returnquery
 end
 
+-- BODIES MANAGEMENT FUNCTIONS
+-- Basic function to handle bodies. Empty function here as baseworld doesn't
+-- handle bodies
+
+function BaseWorld:registerBody(body)
+  return nil
+end
+
+function BaseWorld:updateBody(body)
+  return x, y, {}, 0
+end
+
+function BaseWorld:removeBody(body)
+  return nil
+end
+
+function BaseWorld:moveActor(actor, x, y, filter)
+  -- as the baseworld have no collision function, we return empty collision
+  -- datas, but from the same type than bump2D will return
+  return x, y, {}, 0
+end
+
+function BaseWorld:checkCollision(actor, x, y, filter)
+  -- as the baseworld have no collision function, we return empty collision
+  -- datas, but from the same type than bump2D will return
+  return x, y, {}, 0
+end
+
+function BaseWorld:queryRect(x, y, w, h)
+  local query = {}
+  local x2, y2 = x + w, y + h
+  for i,v in ipairs(self.actors) do
+    if (v.x >= x) and (v.x + v.w >= x1) and
+       (v.y >= y) and (v.y + v.h >= y1) then
+
+      table.insert(query, v)
+    end
+  end
+
+  return v
+end
+
 -- INFO FUNCTIONS
 -- Give infos about the world