diff --git a/gamecore/modules/world/world3D.lua b/gamecore/modules/world/world3D.lua
index 0bc7139..9d6a98a 100644
--- a/gamecore/modules/world/world3D.lua
+++ b/gamecore/modules/world/world3D.lua
@@ -131,7 +131,16 @@ end
 function World3D:newCollisionFromMap(objectlayer, object)
   local z = object.properties.z or 0
   local d = object.properties.d or 16
-  self:newCollision(objectlayer.name, object.x, object.y, z, object.width, object.height, d)
+  local fromTop = object.properties.fromTop or false
+
+  local y = object.y
+  if (fromTop) then
+    print("create from top, set z and y:", z, y, "=>", z-d, y+z)
+    y = y + z
+    z = z - d
+  end
+
+  self:newCollision(objectlayer.name, object.x, y, z, object.width, object.height, d)
 end
 
 function World3D:addPlayerFromMap(object, i)