Create a Math class

[MarkOates]

However, a lot of geometry can go into vec2d and might not leave much left for a Math class.

[arvidsson]

Maybe useful constants and general stuff like clamp and whatnot?

[MarkOates]

Exactly. Right now there are a bunch of things stuffed in useful.h/useful.cpp that should belong in a Math class.

There are a few constants already like

• TAU
• FULL_ROTATION

And a few functions like

• degrees_to_radians(deg)
• radians_to_degrees(rad)
• limit<T>(min, max, val)
• in_range<T>(min, max, val)

Eventually, I'll need to assemble a comprehensive list practical for games.

[MarkOates]

Pushing this to 0.9