akirayu101

-- error message monad here
data E a = Success a | Error String
unitE a = Success a
errorE s = Error s
(Success a) `bindE` k = k a
(Error s) `bindE` k = Error s
showE (Success a) = "Success: " ++ showval a
showE (Error s) = "Error: " ++ s

showpos :: Position -> String

akirayu101

-- Internal register table
local _class={}

--Create an class（为了不与cocos2d-x中给出的class的名字冲突，这里创建接口改名为luaClass）
function luaClass(base)
	local superType  = type(base)
	local vtbl 		 = {}
	local class_type = {}

	class_type.ctor		= false

akirayu101

## 空state，不产生任何的效果
class State(object):
    def __init__(self):
        pass

    def enter(self, entity, param_table, state_maintain, global_maintain):
        pass

    def update(self, entity, param_table, state_maintain, global_maintain):
        pass