Consolidated RTL state to be captured by rtl_state variable.
Combined update_RTL_Nav and verify_RTL functions which performed the same function but one was for missions, the other for the RTL flight mode.
Renamed some RTL parameters and global variables to have RTL at the front.
Landing detector now checks accel-throttle's I term and/or a very low throttle value
Previously the requested rate used the square root of the altitude error.
Scale pilot's desired vertical rate and acceleration based on ACCELERATION_MAX_Z and VELOCITY_MAX_Z #defines
Changes include:
New low-level get_throttle_accel function takes target acceleration and compares vs earth-frame Z accelerometer values to produce output to motors.
Higher level throttle controllers modified to call new get_throttle_accel controller
Throttle_rate_stabilized controller added which maintains a desired climb/descent rate
Throttle_land controller added - descends using normal auto throttle controller to 10m then descends at 50cm/s
Multiple throttle modes added including landing mode
Land flight mode no longer needs GPS
Throttle cruise maintenance moved to update_throttle_cruise function
Creating Stab_Collective Function to allow for different collective ranges between Stabilize and other modes.
This makes for a smoother collective action in Stabilize mode with manual throttle, while still allowing full collective travel in Acro and other modes.
Remove Rate I-term reset when throttle stick is on the bottom. This could be very bad for helis since it's plausible to use full downstick while flying.
There is obviously a risk here of building up a false I-term on the ground but this isn't a good solution for that anyway.
Also removed what appears to be some deadwood.
Commented out a bit of code that is not used currently
Change the output constrains to #defines so they can be easily changed, particularly for use in TradHeli.
rmackay9
Robert Lefebvre
Andrew Tridgell
Michael Oborne