Update Command.rb

[fix] generate_delta doesn't work correctly when different changes happen on multi-language.
[warn] That code hasn't been verified.

Commands.rb

@@ -24,24 +24,25 @@ module Commands
 	end
 
 	def generate_delta(languages = nil)
-		Log.logger.info "Generate delta card image(s)"
-		self.clear_mse
-		data = Sqlite.load
-		changes = HashJudger.compare data
-		generates = changes[0] + changes[2]
-		removes = changes[1]
-		data = Sqlite.split generates
+		Log.logger.info "Generate delta card image(s) with parameter: #{languages.inspect}"
 		if languages == nil
-			process(removes, data)
+			process_generate_delta
 		else
 			for language in languages
 				Global.language = language
-				process(removes, data)
+				process_generate_delta
 			end
 		end
 	end
 
-	def process(removes, data)
+	def process_generate_delta
+		Log.logger.info "Generate delta card image with language #{Global.language}"
+		self.clear_mse
+		data = Sqlite.load # Language effected here
+		changes = HashJudger.compare data
+		generates = changes[0] + changes[2]
+		removes = changes[1]
+		data = Sqlite.split generates
 		for card in removes
 			id = YGOCoreJudgers.get_id card
 			path = File.join Global.full_answer_path, id.to_s + Global.image_type