User:BenMcDonald

Ben McDoanld's page

I am doing my design study for my COSC426:Augmented Reality project. I need a design for a boxing skills trainer. No code has been written so far. I have made a sketch of the requirements for the design of the software. The project is in C++ using the libraries open scene graph (osg) and augmented reality tool-kit open scene graph (ARTosg)

Requirements:

• A score needs to be generated from a set of tested skills:
  • Consistent guard
  • Eyes forward and on opponent
  • Bobbing and weaving
  • Timing of punches
• Each skill needs to be modelled and the evaluation method for each skill also needs to be modelled.
• The performance on the skills needs to be evaluated and for additional activities to be recommended to the athlete.
• An athlete’s evaluation history, progress and general details to be recorded and recoverable.

Iteration One

Design:

Observer Pattern:

• Subject - Observable
• ConcreteSubject - Athlete
• Observer - Observer
• ConcreteObserver - Trainer

Iteration Two

Design:

State Pattern:

• Context - Trainer
• State - TrainingState
• ConcreteStates - PunchingDrill, BobbingAndWeaving

Observer Pattern:

• Subject - Observable
• ConcreteSubject - Athlete
• Observer - Observer
• ConcreteObserver - Trainer

Observer Pattern:

• Subject - Observable
• ConcreteSubject - Trainer
• Observer - Observer
• ConcreteObserver - TrainerAnimation

Maxims that have been useful:

• Command query separation - One plus of C++ is that you can mark queries, and enforce them, with the const keyword.
• Design by contract - Using assert's to enforce conditions at the moment