整理代码，lang模块功能特化

Zframework/languages.lua

@@ -12,23 +12,30 @@ local tipMeta={__call=function(L)return L[math.random(#L)]end}
 
 local langList={}
 local publicText,publicWidgetText={},{}
+local function lang_set(l)
+	text=langList[l]
+	WIDGET.setLang(text.WidgetText)
+	for _,s in next,drawableTextLoad do
+		drawableText[s]:set(text[s])
+	end
+end
 
 local LANG={}
 
---Must call before LANG.init
+--Call these before call LANG.init()
 function LANG.setLangList(list)langList=list end
 function LANG.setPublicText(L)publicText=L end
 function LANG.setPublicWidgetText(L)publicWidgetText=L end
 
-function LANG.init()
+function LANG.init()--Attention, calling this will DESTORY ALL METHODS, only left LANG.set()!
 	for i=1,#langList do
 		local L=langList[i]
-	
+
 		--Set public text
 		for key,list in next,publicText do
 			L[key]=list
 		end
-	
+
 		--Set public widget text
 		for key,list in next,publicWidgetText do
 			local WT=L.WidgetText
@@ -37,31 +44,24 @@ function LANG.init()
 				WT[key][k]=v
 			end
 		end
-	
+
 		--Fallback to other language, default zh
 		if i>1 then
 			langFallback(langList[L.fallback or 1],L)
 		end
-	
+
 		--Metatable:__call for table:getTip
 		if type(rawget(L,"getTip"))=="table"then
 			setmetatable(L.getTip,tipMeta)
 		end
-	
+
 		--set global name for all back button
 		for _,v in next,L.WidgetText do
 			v.back=L.back
 		end
 	end
-	LANG.init=nil
-end
-
-function LANG.set(l)
-	text=langList[l]
-	WIDGET.setLang(text.WidgetText)
-	for _,s in next,drawableTextLoad do
-		drawableText[s]:set(text[s])
-	end
+	LANG.init,LANG.setLangList,LANG.setPublicText,LANG.setPublicWidgetText=nil
+	LANG.set=lang_set
 end
 
 return LANG

Zframework/widget.lua

@@ -3,12 +3,10 @@ local kb=love.keyboard
 local int,abs=math.floor,math.abs
 local max,min=math.max,math.min
 local sub,format=string.sub,string.format
-local ins=table.insert
 
 local Timer=love.timer.getTime
 local setFont,mStr=setFont,mStr
 
-local widgetList={}
 local WIDGET={}
 local widgetMetatable={
 	__tostring=function(self)