Using glide locomotion
For our locomotion features in this chapter, let's take an agile approach to development. This means (in part) that we'll start by defining our new feature, or story, with a set of requirements. Then, we'll incrementally build and test this feature, one requirement at a time, by iterating and refining our work as we go along. Experimentation is not only allowed, it's encouraged.
Note
Agile software development is a broad term for methodologies that encourage small incremental and iterative development in a fashion that's easy to respond to changing and refined requirements. See the Agile Manifesto at http://agilemanifesto.org/.
The feature we want to implement is this: as a first-person character, when I start walking, I will move through the scene in the direction I am looking until I indicate to stop walking. Here are the requirements to achieve this feature:
- Move in the direction you're looking
- Keep your feet on the ground
- Don't pass through solid objects
- Don't fall off...
