mirror of https://github.com/ArduPilot/ardupilot
197 lines
5.7 KiB
C++
197 lines
5.7 KiB
C++
#include "mode.h"
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#include "Rover.h"
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// constructor
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ModeAuto::ModeAuto(ModeRTL& mode_rtl) :
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_mode_rtl(mode_rtl)
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{
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}
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bool ModeAuto::_enter()
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{
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// fail to enter auto if no mission commands
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if (mission.num_commands() <= 1) {
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gcs().send_text(MAV_SEVERITY_NOTICE, "No Mission. Can't set AUTO.");
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return false;
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}
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// initialise waypoint speed
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set_desired_speed_to_default();
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// init location target
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set_desired_location(rover.current_loc);
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// other initialisation
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auto_triggered = false;
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// restart mission processing
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mission.start_or_resume();
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return true;
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}
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void ModeAuto::_exit()
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{
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// stop running the mission
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if (mission.state() == AP_Mission::MISSION_RUNNING) {
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mission.stop();
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}
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}
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void ModeAuto::update()
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{
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switch (_submode) {
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case Auto_WP:
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{
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_distance_to_destination = get_distance(rover.current_loc, _destination);
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const bool near_wp = _distance_to_destination <= rover.g.waypoint_radius;
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// check if we've reached the destination
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if (!_reached_destination && (near_wp || location_passed_point(rover.current_loc, _origin, _destination))) {
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// trigger reached
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_reached_destination = true;
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}
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// determine if we should keep navigating
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if (!_reached_destination || (rover.is_boat() && !near_wp)) {
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// continue driving towards destination
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calc_steering_to_waypoint(_reached_destination ? rover.current_loc : _origin, _destination, _reversed);
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calc_throttle(calc_reduced_speed_for_turn_or_distance(_reversed ? -_desired_speed : _desired_speed), true, true);
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} else {
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// we have reached the destination so stop
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stop_vehicle();
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}
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break;
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}
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case Auto_HeadingAndSpeed:
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{
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if (!_reached_heading) {
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// run steering and throttle controllers
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calc_steering_to_heading(_desired_yaw_cd);
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calc_throttle(_desired_speed, true, true);
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// check if we have reached within 5 degrees of target
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_reached_heading = (fabsf(_desired_yaw_cd - ahrs.yaw_sensor) < 500);
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} else {
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stop_vehicle();
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}
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break;
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}
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case Auto_RTL:
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_mode_rtl.update();
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break;
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}
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}
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// return distance (in meters) to destination
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float ModeAuto::get_distance_to_destination() const
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{
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if (_submode == Auto_RTL) {
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return _mode_rtl.get_distance_to_destination();
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}
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return _distance_to_destination;
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}
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// set desired location to drive to
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void ModeAuto::set_desired_location(const struct Location& destination, float next_leg_bearing_cd)
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{
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// call parent
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Mode::set_desired_location(destination, next_leg_bearing_cd);
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_submode = Auto_WP;
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}
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// return true if vehicle has reached or even passed destination
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bool ModeAuto::reached_destination()
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{
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if (_submode == Auto_WP) {
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return _reached_destination;
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}
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if (_submode == Auto_RTL) {
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return _mode_rtl.reached_destination();
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}
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// we should never reach here but just in case, return true to allow missions to continue
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return true;
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}
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// set desired heading in centidegrees (vehicle will turn to this heading)
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void ModeAuto::set_desired_heading_and_speed(float yaw_angle_cd, float target_speed)
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{
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// call parent
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Mode::set_desired_heading_and_speed(yaw_angle_cd, target_speed);
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_submode = Auto_HeadingAndSpeed;
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_reached_heading = false;
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}
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// return true if vehicle has reached desired heading
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bool ModeAuto::reached_heading()
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{
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if (_submode == Auto_HeadingAndSpeed) {
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return _reached_heading;
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}
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// we should never reach here but just in case, return true to allow missions to continue
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return true;
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}
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// start RTL (within auto)
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void ModeAuto::start_RTL()
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{
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if (_mode_rtl.enter()) {
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_submode = Auto_RTL;
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}
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}
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/*
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check for triggering of start of auto mode
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*/
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bool ModeAuto::check_trigger(void)
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{
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// check for user pressing the auto trigger to off
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if (auto_triggered && g.auto_trigger_pin != -1 && rover.check_digital_pin(g.auto_trigger_pin) == 1) {
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gcs().send_text(MAV_SEVERITY_WARNING, "AUTO triggered off");
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auto_triggered = false;
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return false;
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}
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// if already triggered, then return true, so you don't
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// need to hold the switch down
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if (auto_triggered) {
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return true;
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}
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// return true if auto trigger and kickstart are disabled
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if (g.auto_trigger_pin == -1 && is_zero(g.auto_kickstart)) {
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// no trigger configured - let's go!
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auto_triggered = true;
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return true;
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}
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// check if trigger pin has been pushed
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if (g.auto_trigger_pin != -1 && rover.check_digital_pin(g.auto_trigger_pin) == 0) {
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gcs().send_text(MAV_SEVERITY_WARNING, "Triggered AUTO with pin");
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auto_triggered = true;
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return true;
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}
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// check if mission is started by giving vehicle a kick with acceleration > AUTO_KICKSTART
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if (!is_zero(g.auto_kickstart)) {
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const float xaccel = rover.ins.get_accel().x;
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if (xaccel >= g.auto_kickstart) {
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gcs().send_text(MAV_SEVERITY_WARNING, "Triggered AUTO xaccel=%.1f", static_cast<double>(xaccel));
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auto_triggered = true;
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return true;
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}
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}
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return false;
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}
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void ModeAuto::calc_throttle(float target_speed, bool nudge_allowed, bool avoidance_enabled)
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{
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// If not autostarting set the throttle to minimum
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if (!check_trigger()) {
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stop_vehicle();
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return;
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}
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Mode::calc_throttle(target_speed, nudge_allowed, avoidance_enabled);
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}
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