extends: Arraydata/rbot/plugins/factoids.rbdelete_one to remove a random element...

diff --git a/lib/rbot/core/utils/extends.rb b/lib/rbot/core/utils/extends.rb
index 7b733994b74d323b010db0bc2ee6d66dad1f598d..e587f5641901a96de59a82677a0401608327f892 100644 (file)
--- a/lib/rbot/core/utils/extends.rb
+++ b/lib/rbot/core/utils/extends.rb
@@ -49,6 +49,14 @@ class ::Array
     return nil if self.empty?
     self[rand(self.length)]
   end
+
+  # This method returns a random element from the array, deleting it from the
+  # array itself. The method returns nil if the array is empty
+  #
+  def delete_one
+    return nil if self.empty?
+    self.delete_at(rand(self.length))
+  end
 end
 
 # Extensions to the Range class