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-rw-r--r--advtrains/wagons.lua19
1 files changed, 18 insertions, 1 deletions
diff --git a/advtrains/wagons.lua b/advtrains/wagons.lua
index 14bb58a..536c8d4 100644
--- a/advtrains/wagons.lua
+++ b/advtrains/wagons.lua
@@ -13,7 +13,20 @@ local GETOFF_TP_DELAY = 0.5
local IGNORE_WORLD = advtrains.IGNORE_WORLD
advtrains.wagons = {}
-advtrains.wagon_prototypes = {}
+advtrains.wagon_alias = {}
+advtrains.wagon_prototypes = setmetatable({}, {
+ __index = function(t, k)
+ local rtn_val = rawget(t, k)
+ if rtn_val ~= nil then
+ return rtn_val
+ end
+ local alias = advtrains.wagon_alias[k]
+ if alias then
+ return rawget(t, alias)
+ end
+ return nil
+ end
+})
advtrains.wagon_objects = {}
local unload_wgn_range = advtrains.wagon_load_range + 32
@@ -1326,6 +1339,10 @@ function advtrains.get_wagon_prototype(data)
return wt, advtrains.wagon_prototypes[wt]
end
+function advtrains.register_wagon_alias(src, dst)
+ advtrains.wagon_alias[src] = dst
+end
+
function advtrains.standard_inventory_formspec(self, pname, invname)
--[[minetest.chat_send_player(pname, string.format("self=%s, pname=%s, invname=%s", self, pname, invname))
for k,v in pairs(self) do