Roadmap to v1.0

[gliderkite]

Most of the features I originally had in mind for this library are close to be finalized. There are still some aspects of the library that could be improved implementation and design wise:

• Use of unsafe: the library makes use of unsafe code, which is well documented, but there are no tests for it. I made the conscious decisions that no tests will be added since the library was made to be fun to write and experiment with, and never be shipped to production.
• Parallel engine: parallel computation can be opted-in only at compile time by enabling a specific cargo feature, this is ideal to improve ease of use, but not ideal for some scenarios. I simply couldn't find a design that would allow me to have 2 different Environment engines (parallel and sequential) that was DRY enough for this type of project.
• The Entity trait includes everything I've ever needed for the kind of simulations I implemented and had in mind; nevertheless there could be new needs (such as new callbacks, or new/different associated types for graphic context, transformations or errors). Until that changes the current trait can be considered final.

The main missing points before publishing a 1.0 stable version are:

• Finalize the parallel engine feature design Introduce parallel scheduler component #5.
• Gather more feedback.
• Is it possible to get rid of the Box from the public interface? Release 0.9 #6
• How does semeion look like when used without a graphics Context and what features are still missing for it to be useful when graphics is not necessary?
• How does it compare to other entities systems (ECS)? What are the main similarities and differences?
• Enhance documentation: when should you use semeion? How do you use the library (example without graphic interface)?