diff --git a/game/engines/default/engine/class.lua b/game/engines/default/engine/class.lua
index 48fe9c2..5631043 100644
--- a/game/engines/default/engine/class.lua
+++ b/game/engines/default/engine/class.lua
@@ -41,20 +41,42 @@ function make(c)
 	return c
 end
 
-function inherit(base, ...)
-	local ifs = {...}
+function inherit(...)
+	local bases = {...}
 	return function(c)
-		if #ifs == 0 then
-			setmetatable(c, {__index=base})
+		c._BASES = bases
+		if #bases == 1 then
+			setmetatable(c, {__index=bases[1]})
 		else
-			for i, _if in ipairs(ifs) do
-				for k, e in pairs(_if) do
-					if k ~= "init" and k ~= "_NAME" and k ~= "_M" and k ~= "_PACKAGE" and k ~= "new" then
-						c[k] = e
---						print(("caching interface value %s (%s) from %s to %s"):format(k, tostring(e), _if._NAME, c._NAME))
+			local skip_key = {init=true, _NAME=true, _M=true, _PACKAGE=true, new=true, _BASES=true, castAs=true}
+			local completed_bases = {}
+			local cache_inheritance
+			cache_inheritance = function(c, base)
+				-- Only cache a base class once
+				if not completed_bases[base] then
+					-- Cache all the immediate variables
+					for k, e in pairs(base) do
+						if not skip_key[k]  and (c[k] == nil) and (base[k] ~= nil) then
+							print(("caching interface value %s (%s) from %s to %s"):format(k, tostring(e), base._NAME, c._NAME))
+							c[k] = base[k]
+						end
+					end
+					completed_bases[base] = true
+					-- Add all of this base class' base classes to the queue
+					if base._BASES and type(base._BASES) == "table" then
+						for i, base in ipairs(base._BASES) do
+							print(("adding %s to cache queue"):format(base._NAME))
+							bases[#bases+1] = base
+						end
 					end
 				end
 			end
+			local i = 1
+			while i <= #bases do
+				print(i)
+				cache_inheritance(c, bases[i])
+				i = i + 1
+			end
 			setmetatable(c, {__index=base})
 		end
 		c.new = function(...)