Move path recording to a command

This commit is contained in:
nathanrsxtn
2022-03-08 16:31:42 -07:00
parent c41855a1fa
commit 02dce02225
6 changed files with 252 additions and 207 deletions
-10
View File
@@ -190,16 +190,6 @@ public class Robot extends TimedRobot {
public void disabledInit() {
LOGGER.fine("disabledInit()");
m_robotTime.endMatchTime();
if (isTest()) {
// IMPORTANT: Had to chown the pathplanner folder in order to save autos.
File outputFile = Filesystem.getDeployDirectory().toPath().resolve("pathplanner")
.resolve("recording." + System.currentTimeMillis() + ".path").toFile();
if (Boolean.TRUE.equals(Errors.log().getWithDefault(outputFile::createNewFile, false))) {
m_robotContainer.createPath(null, null, false).write(outputFile);
LOGGER.log(Level.SEVERE, "Recorded path to {0}.", outputFile.getPath());
} else
LOGGER.log(Level.SEVERE, "Unable to record path to {0}", outputFile.getPath());
}
}
@Override
+9 -196
View File
@@ -59,6 +59,7 @@ import frc4388.robot.Constants.OIConstants;
import frc4388.robot.Constants.StorageConstants;
import frc4388.robot.Constants.SwerveDriveConstants;
import frc4388.robot.commands.AimToCenter;
import frc4388.robot.commands.PathRecorder;
import frc4388.robot.commands.Shoot;
import frc4388.robot.commands.TrackTarget;
import frc4388.robot.subsystems.BoomBoom;
@@ -105,19 +106,7 @@ public class RobotContainer {
private final XboxController m_operatorXbox = new DeadbandedXboxController(OIConstants.XBOX_OPERATOR_ID);
/* Autonomous */
private PathPlannerTrajectory loadedPathTrajectory = null;
private final ListeningSendableChooser<File> autoChooser = new ListeningSendableChooser<>(this::loadPath);
private final List<Waypoint> pathPoints = new ArrayList<>();
private final NetworkTableInstance networkTableInstance = NetworkTableInstance.getDefault();
private final NetworkTable recordingNetworkTable = networkTableInstance.getTable("Recording");
private static final DateTimeFormatter RECORDING_FILE_NAME_FORMATTER = DateTimeFormatter
.ofPattern("'Recording' yyyy-MM-dd HH-mm-ss.SSS'.path'");
private static final Clock SYSTEM_CLOCK = Clock.system(ZoneId.systemDefault());
private static final Path PATHPLANNER_DIRECTORY = Filesystem.getDeployDirectory().toPath().resolve("pathplanner");
// Function that removes the ".path" from the end of a string.
private static final Function<CharSequence, String> PATH_EXTENSION_REMOVER = ((Function<CharSequence, Matcher>) Pattern
.compile(".path")::matcher).andThen(m -> m.replaceFirst(""));
private final PathRecorder m_pathChooser = new PathRecorder(m_robotSwerveDrive);
/**
* The container for the robot. Contains subsystems, OI devices, and commands.
@@ -160,13 +149,10 @@ public class RobotContainer {
// new AimToCenter(m_robotTurret, m_robotSwerveDrive, m_robotVisionOdometry));
// continually sends updates to the Blinkin LED controller to keep the lights on
/*
* m_robotLED
* .setDefaultCommand(new RunCommand(m_robotLED::updateLED,
* m_robotLED).withName("LED update defaultCommand"));
* autoInit();
* recordInit();
*/
// m_robotLED.setDefaultCommand(new RunCommand(m_robotLED::updateLED, m_robotLED).withName("LED update defaultCommand"));
// Creates a button on the SmartDashboard that will record the path of the robot.
SmartDashboard.putData("Path Recording", m_pathChooser);
}
/**
@@ -248,18 +234,18 @@ public class RobotContainer {
* @return the command to run in autonomous
*/
public Command getAutonomousCommand() {
if (loadedPathTrajectory != null) {
if (m_pathChooser.getPath() != null) {
PIDController xController = SwerveDriveConstants.X_CONTROLLER;
PIDController yController = SwerveDriveConstants.Y_CONTROLLER;
ProfiledPIDController thetaController = SwerveDriveConstants.THETA_CONTROLLER;
thetaController.enableContinuousInput(-Math.PI, Math.PI);
PathPlannerState initialState = loadedPathTrajectory.getInitialState();
PathPlannerState initialState = m_pathChooser.getPath().getInitialState();
Pose2d initialPosition = new Pose2d(initialState.poseMeters.getTranslation(), initialState.holonomicRotation);
return new SequentialCommandGroup(
new InstantCommand(m_robotSwerveDrive.m_gyro::reset),
new InstantCommand(() -> m_robotSwerveDrive.resetOdometry(initialPosition)),
new PPSwerveControllerCommand(loadedPathTrajectory, m_robotSwerveDrive::getOdometry,
new PPSwerveControllerCommand(m_pathChooser.getPath(), m_robotSwerveDrive::getOdometry,
m_robotSwerveDrive.m_kinematics, xController, yController, thetaController,
m_robotSwerveDrive::setModuleStates, m_robotSwerveDrive),
new InstantCommand(m_robotSwerveDrive::stopModules)).withName("Run Autonomous Path");
@@ -295,177 +281,4 @@ public class RobotContainer {
public XboxController getOperatorController() {
return m_operatorXbox;
}
/**
* Creates a WatchKey for the path planner directory and registers it with the
* WatchService.
* Then creates a NotifierCommand that will update the auto chooser with the
* latest path files.
* Finally, adds the existing path files to the auto chooser
*/
private void autoInit() {
try {
WatchKey watchKey = PATHPLANNER_DIRECTORY.register(FileSystems.getDefault().newWatchService(),
StandardWatchEventKinds.ENTRY_CREATE, StandardWatchEventKinds.ENTRY_MODIFY,
StandardWatchEventKinds.ENTRY_DELETE);
// TODO: Store this and other commands as fields so they can be rescheduled.
new NotifierCommand(() -> updateAutoChooser(watchKey), 0.5) {
@Override
public boolean runsWhenDisabled() {
return true;
}
}.withName("Path Watcher").schedule();
} catch (IOException exception) {
LOGGER.log(Level.SEVERE, "Exception with path file watcher.", exception);
}
Arrays.stream(PATHPLANNER_DIRECTORY.toFile().listFiles())
.filter(file -> file.getName().endsWith(".path")).sorted(Comparator.comparingLong(File::lastModified))
.forEachOrdered(file -> autoChooser.addOption(file.getName(), file));
SmartDashboard.putData("Auto Chooser", autoChooser);
}
/**
* Creates a button on the SmartDashboard that will record the path of the
* robot.
*/
public void recordInit() {
SmartDashboard.putData("Recording",
new RunCommand(this::recordPeriodic) {
@Override
public void end(boolean interupted) {
new InstantCommand(RobotContainer.this::saveRecording) {
@Override
public boolean runsWhenDisabled() {
return true;
}
}.withName("Save Recording").schedule();
}
}.withName("Record Path (Cancel to Save)"));
}
/**
* Called when a file is created, modified, or deleted.
* Adds newly created .path files to the SendableChooser.
* Reloads the path if the currently selected file is modified.
*
* @param watchKey The WatchKey that is being observed.
*/
private void updateAutoChooser(WatchKey watchKey) {
List<WatchEvent<?>> watchEvents = watchKey.pollEvents();
if (!watchEvents.isEmpty()) {
List<WatchEvent<?>> pathWatchEvents = watchEvents.stream()
.filter(e -> e.kind().type().isAssignableFrom(Path.class)).collect(Collectors.toList());
for (WatchEvent<?> pathWatchEvent : pathWatchEvents) {
Path watchEventPath = (Path) pathWatchEvent.context();
File watchEventFile = watchEventPath.toFile();
String watchEventFileName = watchEventFile.getName();
if (watchEventFileName.endsWith(".path")) {
if (pathWatchEvent.kind().equals(StandardWatchEventKinds.ENTRY_CREATE)) {
LOGGER.log(Level.WARNING, "PathPlanner file {0} created. Options added to SendableChooser.",
watchEventFileName);
autoChooser.addOption(watchEventFile.getName(), watchEventFile);
} else if (pathWatchEvent.kind().equals(StandardWatchEventKinds.ENTRY_MODIFY)) {
LOGGER.log(Level.WARNING, "PathPlanner file {0} modified.", watchEventFileName);
if (watchEventFileName.equals(autoChooser.getSelected().getName())) {
LOGGER.log(Level.SEVERE, "PathPlanner file {0} already selected. Reloading path.", watchEventFileName);
loadPath(watchEventFileName);
}
} else if (pathWatchEvent.kind().equals(StandardWatchEventKinds.ENTRY_DELETE)) {
LOGGER.log(Level.SEVERE,
"PathPlanner file {0} deleted. Removing options from SendableChooser not yet implemented.",
watchEventFileName);
}
}
}
}
if (!watchKey.reset())
LOGGER.severe("File watch key invalid.");
}
private void loadPath(String pathName) {
LOGGER.warning("Loading path " + pathName);
loadedPathTrajectory = null;
loadedPathTrajectory = PathPlanner.loadPath(PATH_EXTENSION_REMOVER.apply(Objects.requireNonNullElse(pathName, "")),
SwerveDriveConstants.PATH_MAX_VELOCITY, SwerveDriveConstants.PATH_MAX_ACCELERATION);
LOGGER.info("Done loading");
}
private void saveRecording() {
// IMPORTANT: Had to chown the pathplanner folder in order to save autos.
File outputFile = PATHPLANNER_DIRECTORY
.resolve(ZonedDateTime.now(SYSTEM_CLOCK).format(RECORDING_FILE_NAME_FORMATTER)).toFile();
LOGGER.log(Level.WARNING, "Creating path {0}.", outputFile.getPath());
if (!pathPoints.isEmpty() && Boolean.TRUE.equals(Errors.log().getWithDefault(outputFile::createNewFile, false))) {
// TODO: Change to use measured maximum velocity and acceleration.
var path = createPath(null, null, false);
if (RobotBase.isReal())
path.write(outputFile);
StringWriter writer = new StringWriter();
path.write(writer);
recordingNetworkTable.getEntry(outputFile.getName()).setString(writer.toString());
autoChooser.setDefaultOption(outputFile.getName(), outputFile);
LOGGER.log(Level.INFO, "Recorded path to {0}.", outputFile.getPath());
} else
LOGGER.log(Level.SEVERE, "Unable to record path to {0}", outputFile.getPath());
}
public void recordPeriodic() {
Translation2d position = m_robotSwerveDrive.m_poseEstimator.getEstimatedPosition().getTranslation();
Rotation2d rotation = m_robotSwerveDrive.m_gyro.getRotation2d();
// FIXME: Chassis speeds are created from joystick inputs and do not reflect
// actual robot velocity.
Translation2d velocity = new Translation2d(m_robotSwerveDrive.getChassisSpeeds().vxMetersPerSecond,
m_robotSwerveDrive.getChassisSpeeds().vyMetersPerSecond);
Waypoint waypoint = new Waypoint(position, position, position, rotation.getDegrees(), false,
SwerveDriveConstants.PATH_RECORD_VELOCITY ? velocity.getNorm() : null, false);
pathPoints.add(waypoint);
}
public PathPlannerUtil.Path createPath(Double maxVelocity, Double maxAcceleration, Boolean isReversed) {
// Remove points whose angles to neighboring points are less than 10 degrees
// apart.
int j = 0;
for (int i = 1; i < pathPoints.size() - 1; i++) {
var prev = pathPoints.get(j).anchorPoint.orElseThrow();
var current = pathPoints.get(i).anchorPoint.orElseThrow();
var next = pathPoints.get(i + 1).anchorPoint.orElseThrow();
var fromPrevious = current.minus(prev);
var toNext = next.minus(current);
var angleFromPrevious = new Rotation2d(fromPrevious.getX(), fromPrevious.getY());
var angleToNext = new Rotation2d(toNext.getX(), toNext.getY());
if (Math.abs(angleFromPrevious.minus(angleToNext).getDegrees()) < SwerveDriveConstants.MIN_WAYPOINT_ANGLE
|| (next.getDistance(prev) < SwerveDriveConstants.MIN_WAYPOINT_DISTANCE
&& pathPoints.get(i).velOverride.map(v -> v < SwerveDriveConstants.MIN_WAYPOINT_VELOCITY).orElse(false)))
pathPoints.set(i, null);
else
j = i;
}
pathPoints.removeIf(Objects::isNull);
// Make control points
pathPoints.get(0).nextControl = Optional.of(makeControlPoints(null, pathPoints.get(0).anchorPoint.orElseThrow(),
pathPoints.get(1).anchorPoint.orElseThrow()).getSecond());
for (int i = 1; i < pathPoints.size() - 1; i++) {
var controls = makeControlPoints(pathPoints.get(i - 1).anchorPoint.orElseThrow(),
pathPoints.get(i).anchorPoint.orElseThrow(), pathPoints.get(i + 1).anchorPoint.orElseThrow());
pathPoints.get(i).prevControl = Optional.of(controls.getFirst());
pathPoints.get(i).nextControl = Optional.of(controls.getSecond());
}
pathPoints.get(pathPoints.size() - 1).prevControl = Optional
.of(makeControlPoints(pathPoints.get(pathPoints.size() - 2).anchorPoint.orElseThrow(),
pathPoints.get(pathPoints.size() - 1).anchorPoint.orElseThrow(), null).getFirst());
// Create the path
PathPlannerUtil.Path path = new PathPlannerUtil.Path();
path.waypoints = Optional.ofNullable(pathPoints.toArray(PathPlannerUtil.Path.Waypoint[]::new));
path.maxVelocity = Optional.ofNullable(maxVelocity);
path.maxAcceleration = Optional.ofNullable(maxAcceleration);
path.isReversed = Optional.ofNullable(isReversed);
pathPoints.clear();
return path;
}
private static Pair<Translation2d, Translation2d> makeControlPoints(Translation2d prev, Translation2d current,
Translation2d next) {
var line = Objects.requireNonNullElse(next, current).minus(Objects.requireNonNullElse(prev, current)).div(4);
return Pair.of(current.minus(line), current.plus(line));
}
}
@@ -0,0 +1,228 @@
package frc4388.robot.commands;
import java.io.File;
import java.io.IOException;
import java.io.StringWriter;
import java.nio.file.FileSystems;
import java.nio.file.Path;
import java.nio.file.StandardWatchEventKinds;
import java.nio.file.WatchEvent;
import java.nio.file.WatchKey;
import java.time.Clock;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import java.util.function.Function;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import com.diffplug.common.base.Errors;
import com.pathplanner.lib.PathPlanner;
import com.pathplanner.lib.PathPlannerTrajectory;
import edu.wpi.first.math.Pair;
import edu.wpi.first.math.geometry.Rotation2d;
import edu.wpi.first.math.geometry.Translation2d;
import edu.wpi.first.networktables.NetworkTable;
import edu.wpi.first.networktables.NetworkTableInstance;
import edu.wpi.first.wpilibj.Filesystem;
import edu.wpi.first.wpilibj.RobotBase;
import edu.wpi.first.wpilibj.smartdashboard.SmartDashboard;
import edu.wpi.first.wpilibj2.command.CommandBase;
import edu.wpi.first.wpilibj2.command.InstantCommand;
import edu.wpi.first.wpilibj2.command.NotifierCommand;
import frc4388.robot.Constants.SwerveDriveConstants;
import frc4388.robot.subsystems.SwerveDrive;
import frc4388.utility.ListeningSendableChooser;
import frc4388.utility.PathPlannerUtil;
import frc4388.utility.PathPlannerUtil.Path.Waypoint;
public class PathRecorder extends CommandBase {
private static final Logger LOGGER = Logger.getLogger(PathRecorder.class.getSimpleName());
private static double PATH_POLLING_PERIOD = 0.5;
private static final Clock SYSTEM_CLOCK = Clock.system(ZoneId.systemDefault());
private static final Path PATHPLANNER_DIRECTORY = Filesystem.getDeployDirectory().toPath().resolve("pathplanner");
private static final String PATHPLANNER_EXTENSION = ".path";
private static final DateTimeFormatter RECORDING_FILE_NAME_FORMATTER = DateTimeFormatter.ofPattern("'Recording' yyyy-MM-dd HH-mm-ss.SSS'.path'");
// Function that removes the ".path" from the end of a string.
private static final Function<CharSequence, String> PATH_EXTENSION_REMOVER = ((Function<CharSequence, Matcher>) Pattern.compile(PATHPLANNER_EXTENSION)::matcher).andThen(m -> m.replaceFirst(""));
private PathPlannerTrajectory loadedPathTrajectory = null;
private WatchKey m_watchKey;
private final ListeningSendableChooser<File> pathChooser = new ListeningSendableChooser<>(this::loadPath);
private final List<Waypoint> pathPoints = new ArrayList<>();
private final NetworkTableInstance networkTableInstance = NetworkTableInstance.getDefault();
private final NetworkTable recordingNetworkTable = networkTableInstance.getTable("Recording");
private final SwerveDrive m_swerveDrive;
private final CommandBase m_pathWatcher = new NotifierCommand(this::updatePathChooser, PATH_POLLING_PERIOD) {
@Override
public boolean runsWhenDisabled() {
return true;
}
}.withName("Path Watcher");
private final CommandBase m_pathSaver = new InstantCommand(this::savePath) {
@Override
public boolean runsWhenDisabled() {
return true;
}
}.withName("Save Recording");
public PathRecorder(SwerveDrive swerveDrive) {
m_swerveDrive = swerveDrive;
addRequirements(swerveDrive);
setName("Record Path (Cancel to Save)");
}
/**
* Creates a WatchKey for the path planner directory and registers it with the WatchService. Then
* creates a NotifierCommand that will update the path chooser with the latest path files. Finally,
* adds the existing path files to the path chooser
*/
@Override
public void initialize() {
try {
m_watchKey = PATHPLANNER_DIRECTORY.register(FileSystems.getDefault().newWatchService(), StandardWatchEventKinds.ENTRY_CREATE, StandardWatchEventKinds.ENTRY_MODIFY, StandardWatchEventKinds.ENTRY_DELETE);
m_pathWatcher.schedule();
} catch (IOException exception) {
LOGGER.log(Level.SEVERE, "Exception with path file watcher.", exception);
}
Arrays.stream(PATHPLANNER_DIRECTORY.toFile().listFiles()).filter(file -> file.getName().endsWith(PATHPLANNER_EXTENSION)).sorted(Comparator.comparingLong(File::lastModified)).forEachOrdered(file -> pathChooser.addOption(file.getName(), file));
SmartDashboard.putData("Path Chooser", pathChooser);
}
/**
* Period loop to run during recording. Gets the estimated position and rotation of the robot and
* saves it as a new waypoint.
*/
@Override
public void execute() {
Translation2d position = m_swerveDrive.m_poseEstimator.getEstimatedPosition().getTranslation();
Rotation2d rotation = m_swerveDrive.m_gyro.getRotation2d();
// FIXME: Chassis speeds are created from joystick inputs and do not reflect actual robot velocity.
Translation2d velocity = new Translation2d(m_swerveDrive.getChassisSpeeds().vxMetersPerSecond, m_swerveDrive.getChassisSpeeds().vyMetersPerSecond);
Waypoint waypoint = new Waypoint(position, position, position, rotation.getDegrees(), false, SwerveDriveConstants.PATH_RECORD_VELOCITY ? velocity.getNorm() : null, false);
pathPoints.add(waypoint);
}
@Override
public void schedule() {
super.schedule();
LOGGER.info("Begin recording.");
}
@Override
public void end(boolean interrupted) {
LOGGER.info("End recording.");
m_pathSaver.schedule();
}
public PathPlannerTrajectory getPath() {
return loadedPathTrajectory;
}
/**
* Called when a file is created, modified, or deleted. Adds newly created .path files to the
* SendableChooser. Reloads the path if the currently selected file is modified.
*/
private void updatePathChooser() {
if (m_watchKey != null) {
List<WatchEvent<?>> watchEvents = m_watchKey.pollEvents();
if (!watchEvents.isEmpty()) {
List<WatchEvent<?>> pathWatchEvents = watchEvents.stream().filter(e -> e.kind().type().isAssignableFrom(Path.class)).collect(Collectors.toList());
for (WatchEvent<?> pathWatchEvent : pathWatchEvents) {
Path watchEventPath = (Path) pathWatchEvent.context();
File watchEventFile = watchEventPath.toFile();
String watchEventFileName = watchEventFile.getName();
if (watchEventFileName.endsWith(PATHPLANNER_EXTENSION)) {
if (pathWatchEvent.kind().equals(StandardWatchEventKinds.ENTRY_CREATE)) {
LOGGER.log(Level.WARNING, "PathPlanner file {0} created. Options added to SendableChooser.", watchEventFileName);
pathChooser.addOption(watchEventFile.getName(), watchEventFile);
} else if (pathWatchEvent.kind().equals(StandardWatchEventKinds.ENTRY_MODIFY)) {
LOGGER.log(Level.WARNING, "PathPlanner file {0} modified.", watchEventFileName);
if (watchEventFileName.equals(pathChooser.getSelected().getName())) {
LOGGER.log(Level.SEVERE, "PathPlanner file {0} already selected. Reloading path.", watchEventFileName);
loadPath(watchEventFileName);
}
} else if (pathWatchEvent.kind().equals(StandardWatchEventKinds.ENTRY_DELETE)) {
LOGGER.log(Level.SEVERE, "PathPlanner file {0} deleted. Removing options from SendableChooser not yet implemented.", watchEventFileName);
}
}
}
}
if (!m_watchKey.reset()) LOGGER.severe("File watch key invalid.");
}
}
private void loadPath(String pathName) {
LOGGER.warning("Unloading path.");
loadedPathTrajectory = null;
LOGGER.info("Done unloading.");
if (pathName != null) {
LOGGER.log(Level.WARNING, "Loading path {0}.", pathName);
loadedPathTrajectory = PathPlanner.loadPath(PATH_EXTENSION_REMOVER.apply(pathName), SwerveDriveConstants.PATH_MAX_VELOCITY, SwerveDriveConstants.PATH_MAX_ACCELERATION);
LOGGER.info("Done loading.");
} else {
LOGGER.severe("No path to load.");
}
}
private void savePath() {
// INFO: Had to chown the pathplanner folder in order to save paths.
File outputFile = PATHPLANNER_DIRECTORY.resolve(ZonedDateTime.now(SYSTEM_CLOCK).format(RECORDING_FILE_NAME_FORMATTER)).toFile();
LOGGER.log(Level.WARNING, "Creating path {0}.", outputFile.getPath());
if (!pathPoints.isEmpty() && Boolean.TRUE.equals(Errors.log().getWithDefault(outputFile::createNewFile, false))) {
// Remove points whose angles to neighboring points are less than 10 degrees apart.
int j = 0;
for (int i = 1; i < pathPoints.size() - 1; i++) {
var prev = pathPoints.get(j).anchorPoint.orElseThrow();
var current = pathPoints.get(i).anchorPoint.orElseThrow();
var next = pathPoints.get(i + 1).anchorPoint.orElseThrow();
var fromPrevious = current.minus(prev);
var toNext = next.minus(current);
var angleFromPrevious = new Rotation2d(fromPrevious.getX(), fromPrevious.getY());
var angleToNext = new Rotation2d(toNext.getX(), toNext.getY());
if (Math.abs(angleFromPrevious.minus(angleToNext).getDegrees()) < SwerveDriveConstants.MIN_WAYPOINT_ANGLE || (next.getDistance(prev) < SwerveDriveConstants.MIN_WAYPOINT_DISTANCE && pathPoints.get(i).velOverride.map(v -> v < SwerveDriveConstants.MIN_WAYPOINT_VELOCITY).orElse(false))) pathPoints.set(i, null);
else j = i;
}
pathPoints.removeIf(Objects::isNull);
// Make control points
pathPoints.get(0).nextControl = Optional.of(makeControlPoints(null, pathPoints.get(0).anchorPoint.orElseThrow(), pathPoints.get(1).anchorPoint.orElseThrow()).getSecond());
for (int i = 1; i < pathPoints.size() - 1; i++) {
var controls = makeControlPoints(pathPoints.get(i - 1).anchorPoint.orElseThrow(), pathPoints.get(i).anchorPoint.orElseThrow(), pathPoints.get(i + 1).anchorPoint.orElseThrow());
pathPoints.get(i).prevControl = Optional.of(controls.getFirst());
pathPoints.get(i).nextControl = Optional.of(controls.getSecond());
}
pathPoints.get(pathPoints.size() - 1).prevControl = Optional.of(makeControlPoints(pathPoints.get(pathPoints.size() - 2).anchorPoint.orElseThrow(), pathPoints.get(pathPoints.size() - 1).anchorPoint.orElseThrow(), null).getFirst());
// Create the path
PathPlannerUtil.Path path = new PathPlannerUtil.Path();
path.waypoints = Optional.ofNullable(pathPoints.toArray(PathPlannerUtil.Path.Waypoint[]::new));
// TODO: Change to use measured maximum velocity and acceleration.
path.maxVelocity = Optional.ofNullable(null);
path.maxAcceleration = Optional.ofNullable(null);
path.isReversed = Optional.ofNullable(false);
pathPoints.clear();
if (RobotBase.isReal()) path.write(outputFile);
StringWriter writer = new StringWriter();
path.write(writer);
recordingNetworkTable.getEntry(outputFile.getName()).setString(writer.toString());
pathChooser.setDefaultOption(outputFile.getName(), outputFile);
LOGGER.log(Level.INFO, "Recorded path to {0}.", outputFile.getPath());
} else LOGGER.log(Level.SEVERE, "Unable to record path to {0}", outputFile.getPath());
}
private static Pair<Translation2d, Translation2d> makeControlPoints(Translation2d prev, Translation2d current, Translation2d next) {
var line = Objects.requireNonNullElse(next, current).minus(Objects.requireNonNullElse(prev, current)).div(4);
return Pair.of(current.minus(line), current.plus(line));
}
}
@@ -1,7 +1,6 @@
package frc4388.utility;
import java.io.File;
import java.io.OutputStream;
import java.io.Writer;
import java.util.Optional;