integrated the mirroring part

crate.lua

@@ -6,7 +6,8 @@ local CONST_ITERATIONS_RESOLVE = 1
 local Crates = {
   world = nil,
   player = nil,
-  list = { }
+  list = { },
+  attached = { }
 }
 
 local Crate = { }
@@ -55,11 +56,16 @@ function Crates:update(dt)
         curContact = self.list[key].contact
         self.world:addJoint('revolute', self.player.collider, self.list[key].collider, curContact.x, curContact.y, true)
         self.list[key].resolver = nil
+        table.insert(self.attached, self.list[key])
       end
     end
   end
 end
 
+function Crates:getAttached()
+  return self.attached
+end
+
 return setmetatable(Crates, {
   __call = function(_, ...) return new(...) end
 })