In most strategy games, the structures a player can build have a pre-defined look and function. In Starcraft, you can build a Engineering bay to research upgrades for your units, or a Barracks to build those units. Kung Fu Kingdom is going a slightly separate route.
In KFK there are two types of structures - Buildings, and Workspaces. Workspaces are where all the work gets done (hurr hurr hurr), such as crafting or training. However Workspaces do not have any pre-defined shape - they are a collection of different objects (such and an anvil and a forge for making weapons) that work together to perform a function (making weapons).
Buildings are like houses - they provide shelter, but you can do anything you want inside of them. You can take a building and put a training workspace inside, or a forge, or both if the building is large enough.
This is a kind of confusing topic, so we will be producing more videos to show exactly what we are talking about throughout the next several weeks, starting with this one, which shows basically how the player can hook buildings together to form bigger, better buildings!