We've now looked at the basic structure of our tree, and before we jump in and dig into the actual code implementation, let's look at our scene setup. The following screenshot shows our hierarchy; the nodes are highlighted for emphasis:
The setup is quite simple. There is a quad with a world-space canvas, which is simply to display some information during the test. The nodes highlighted in the preceding screenshot will be referenced in the code later, and we'll be using them to visualize the status of each individual node. The actual scene looks something like the following screenshot:
Our actual layout mimics the ...
