[TeMPOraL]

That's a great example. Personally, even beyond gamedev, units are an exception for me - they need to be somewhere, whether in type or in identifier name (or ideally both), or else bad things happen.

But that's what I meant by the epistemological aspect - what is "recently"? Still, "LastTenMs" is arguably even worse - why ten? Did you really mean "since last frame"? Then say "SinceLastFrame". Did you mean "since 2x update time delta"? Then maybe make a PlayerJumpCooldown constant, but then maybe it's not about cooldowns, so... here's when I'd probably say screw this, let's just track MsSincePlayerLastJumped and add a HasPlayerJumpedRecently() -> bool as a helper, with a fat interface comment explaining what "recently" means - and go back to talk with the game designers to give a more specific name for the "recently" thing here.

Point being, this is deceptively hard - doubly so because going all perfectionist about it is also bad.

[Xss3]

I admit my example is slightly contrived and LastTen still raises questions re frames and time handling, especially as its so small, oops! Lets pretend i said LastHundred and its using a framerate independent method.

If i were to helperise it with a bool I'd use the intent for the bool, CanPlayerJumpAgain or something (again...contrived example).