a simple plugin where you could use a command (toggle on/off maybe) or left click with glass to toggle, so you could place one way glass. it would be view-able through the direction that u placed it, but when viewed from the other side it would take in the appearance of the blocks around it (could be programmed to to just mimic a block in one direction, defined in a config file or something, to make it easier to code.) make sure light also only transfers one-way so torches wont give away your secret room. i don't want the special glass to be created on a tool bench or something because this would be a new item to the game, meaning it would require client-side plugins as well. i want it to be a solely server plugin if possible.