#7695, #7696, #7697, #7701, #7724, #7753, #7861 removed various features
from the HAL, but forgot to clean up the handles, the WS API, or both.
Additionally, since AnalogInput is the only remaining analog I/O,
AnalogJNI was renamed to the more specific AnalogInputJNI.
The epoch() function, zero() function, and min_time member are all not
part of the std::chrono clock interface.
The default constructor of time_point is
[documented](https://en.cppreference.com/w/cpp/chrono/time_point/time_point.html)
to initialize to the clock's epoch.
- Remove status return from HAL level (clock getting should never fail)
- Remove 32-bit timestamp expand function
- Make monotonic_clock.hpp (formerly fpga_clock.hpp) header-only and
move to root hal include directory
Makes Java `Alert.Level.ERROR`, `Alert.Level.WARNING`, and
`Alert.Level.INFO` proper aliases (instead of separate enum constants
with the same value).
Cleans up Python tests.
Makes the Alert tests more consistent between languages.
I left "free speed" alone since that's the technical term for it. In
general, velocity is a vector quantity, and speed is a magnitude (i.e.,
a strictly positive value).
This PR also replaces the speed verbiage in MotorController with duty
cycle.
Fixes#8423.
Linear OpModes have several major downsides with no obvious solutions:
- Some things stop working automatically--e.g. in a linear opmode,
simulation will not work out-of-the-box; the user must explicitly call
sim themselves. there's a few other things we do periodically, but this
is the big one (it also forces some decisions on other parts of the
library—eg if we want Tunable to work in linear without the user
manually calling refresh, we have to run it on a background thread,
which means it must be thread safe throughout). We can help in some
areas (e.g. have sleep functions call background things), but if the
user is writing a loop that waits to drive a certain distance with no
sleep, it's an easy footgun
- Writing code with no sleeps is easy to do, and can hog an entire
processing core easily--yes, there's more than one core, but it could
still easily impact e.g. vision processing
- Many people I've talked to want robot-level periodic and periodic sim
functions. Given linear opmodes, we have two options, neither of which
is great: (1) don't provide robot-level periodic functions, and the
users who want those must set those up themselves and remember to call
them explicitly from every periodic opmode, or (2) provide them, but
only call them automatically from periodic opmodes, which could be
confusing for linear opmode users (they'd have to call them manually if
they wanted them). Currently we do (1) but someone in the community
already opened a change to do (2).
- Restarting the robot program fixes the "stuck in auto for the rest of
the match" problem but still feels like an ugly hack because the startup
time is not unlikely to make the robot not immediately ready for teleop
Removing LinearOpMode resolves these issues by moving to a periodic-only
structure. We can address the few notable use cases of LinearOpMode
(e.g. very basic autonomous sequences) in other ways such as Blocks
generated code, better state machine tutorials/documentation, etc.
Easier then the last one that put everything in a sub namespace. By
prefixing the name less things break, and intellisense will be less
confusing to new users during the transition.
Fixed a typo in the description of the getLoopStartTime function in both
C++ and Java TimedRobot class.
---------
Co-authored-by: Tyler Veness <calcmogul@gmail.com>
