util/objectmgr.lua

   1 local ObjectRef = {}
   2
   3 function ObjectRef:init()
   4         for _, p in ipairs(self._proto) do
   5                 if p ~= ObjectRef and p.init then
   6                         p.init(self)
   7                 end
   8         end
   9 end
  10
  11 function ObjectRef:add_proto(p)
  12         table.insert(self._proto, p)
  13 end
  14
  15 ObjectMgr = {}
  16
  17 ObjectMgr.metatable = {
  18         __index = function(t, k)
  19                 for _, p in ipairs(t._proto) do
  20                         local v = p[k]
  21                         if v then
  22                                 return v
  23                         end
  24                 end
  25         end,
  26         __call = function(t, ...)
  27                 return t:_call()
  28         end,
  29         __tostring = function(t)
  30                 return t.serialize and t:serialize() or "<not serializable>"
  31         end,
  32 }
  33
  34 function ObjectMgr.create()
  35         local o = {}
  36         o._proto = {ObjectRef}
  37         setmetatable(o, ObjectMgr.metatable)
  38         return o
  39 end