Nations: Door, Drawbridge and Portcullis Tutorial

Introduction
It is possible to create smoothly animated doors, portcullises and drawbridges on Nations. Although they cannot be created on ships, they can be used for a wide variety of purposes, such as creating city gates and defenses. They must be created inside your town.

Creating a Door

 * 1) Build a door you would like to open. Make sure it is inside your town. Keep in mind doors can currently only be one block deep due to Minecraft limitations.
 * 2) Start the door creation door process with /newdoor . Replace with any non-numerical name you would like to give it.
 * 3) Define the area of the door by following the instructions ingame - i.e. select two points on the door diagonally opposite each other, e.g. the top-left and bottom-right. The square/rectangular area encompassed between these two points will become the door.
 * 4) Follow the ingame instructions to define the 'hinge' of the door - or in other words, the column of blocks it will rotate around. Doordiagram.png
 * 5) That's it! Now you can open the door with /opendoor . Alternatively, you can also open it using the door GUI (/bdm). You can also configure the door's settings on the door GUI, such as giving it additional 'owners' who will also be able to open it through /opendoor.
 * 6) If you want to open the door with redstone, place a gold or lapis block (the  'power block' ) below the hinge. Supply redstone power to the block to open the door. This feature is currently disabled due to lag concerns.

Creating a Portcullis
A portcullis is vertically-moving gate. Creating one is very similar to creating a door, except you need to type /newportcullis instead of /newdoor. In addition, as a portcullis cannot move up or down, there is no need for a hinge. The power block should be one block under the middle block of the portcullis' bottom row.

Creating a Drawbridge
Creating a drawbridge is similar to making a door, although you can select a flat area when defining it. After selecting the area of the drawbridge, select one of the four sides of the drawbridge to define the rotation point/hinge.

The location of the power block is in the middle, under the rotation point. If it's still unclear, you can use the /doorinfo  command or the option on /bdm to see its exact coordinates.