Merge branch 'swerve' into Shooter

This commit is contained in:
Aarav Shah
2022-02-28 19:25:07 -07:00
committed by GitHub
53 changed files with 115573 additions and 536 deletions
@@ -4,182 +4,250 @@
package frc4388.robot.subsystems;
import com.ctre.phoenix.motorcontrol.can.WPI_TalonFX;
import com.ctre.phoenix.sensors.CANCoder;
import java.util.ArrayList;
import com.ctre.phoenix.sensors.WPI_PigeonIMU;
import com.ctre.phoenix.sensors.PigeonIMU.FusionStatus;
import edu.wpi.first.math.VecBuilder;
import edu.wpi.first.math.estimator.SwerveDrivePoseEstimator;
import edu.wpi.first.math.geometry.Pose2d;
import edu.wpi.first.math.geometry.Rotation2d;
import edu.wpi.first.math.geometry.Translation2d;
import edu.wpi.first.math.kinematics.ChassisSpeeds;
import edu.wpi.first.math.kinematics.SwerveDriveKinematics;
import edu.wpi.first.math.kinematics.SwerveDriveOdometry;
import edu.wpi.first.math.kinematics.SwerveModuleState;
import edu.wpi.first.math.util.Units;
import edu.wpi.first.wpilibj2.command.SubsystemBase;
import edu.wpi.first.wpilibj.smartdashboard.Field2d;
import edu.wpi.first.wpilibj.smartdashboard.SmartDashboard;
import edu.wpi.first.wpilibj2.command.SubsystemBase;
import frc4388.robot.Constants.OIConstants;
import frc4388.robot.Constants.SwerveDriveConstants;
import frc4388.utility.Gains;
import frc4388.utility.RobotGyro;
public class SwerveDrive extends SubsystemBase {
SwerveDriveKinematics m_kinematics;
private WPI_TalonFX m_leftFrontSteerMotor;
private WPI_TalonFX m_leftFrontWheelMotor;
private WPI_TalonFX m_rightFrontSteerMotor;
private WPI_TalonFX m_rightFrontWheelMotor;
private WPI_TalonFX m_leftBackSteerMotor;
private WPI_TalonFX m_leftBackWheelMotor;
private WPI_TalonFX m_rightBackSteerMotor;
private WPI_TalonFX m_rightBackWheelMotor;
private CANCoder m_leftFrontEncoder;
private CANCoder m_rightFrontEncoder;
private CANCoder m_leftBackEncoder;
private CANCoder m_rightBackEncoder;
private SwerveModule m_leftFront;
private SwerveModule m_leftBack;
private SwerveModule m_rightFront;
private SwerveModule m_rightBack;
double halfWidth = SwerveDriveConstants.WIDTH / 2.d;
double halfHeight = SwerveDriveConstants.HEIGHT / 2.d;
public static Gains m_swerveGains = SwerveDriveConstants.SWERVE_GAINS;
Translation2d m_frontLeftLocation =
new Translation2d(
Units.inchesToMeters(halfHeight),
Units.inchesToMeters(halfWidth));
Translation2d m_frontRightLocation =
new Translation2d(
Units.inchesToMeters(halfHeight),
Units.inchesToMeters(-halfWidth));
Translation2d m_backLeftLocation =
new Translation2d(
Units.inchesToMeters(-halfHeight),
Units.inchesToMeters(halfWidth));
Translation2d m_backRightLocation =
new Translation2d(
Units.inchesToMeters(-halfHeight),
Units.inchesToMeters(-halfWidth));
//setSwerveGains();
Translation2d m_frontLeftLocation = new Translation2d(Units.inchesToMeters(halfHeight), Units.inchesToMeters(halfWidth));
Translation2d m_frontRightLocation = new Translation2d(Units.inchesToMeters(halfHeight), Units.inchesToMeters(-halfWidth));
Translation2d m_backLeftLocation = new Translation2d(Units.inchesToMeters(-halfHeight), Units.inchesToMeters(halfWidth));
Translation2d m_backRightLocation = new Translation2d(Units.inchesToMeters(-halfHeight), Units.inchesToMeters(-halfWidth));
private SwerveDriveKinematics kinematics = new SwerveDriveKinematics(m_frontLeftLocation, m_frontRightLocation, m_backLeftLocation, m_backRightLocation);
public SwerveDriveKinematics m_kinematics = new SwerveDriveKinematics(m_frontLeftLocation, m_frontRightLocation, m_backLeftLocation, m_backRightLocation);
public SwerveModule[] modules;
public RobotGyro gyro; //TODO Add Gyro Lol
public WPI_PigeonIMU m_gyro;
protected FusionStatus fstatus = new FusionStatus();
/* Here we use SwerveDrivePoseEstimator so that we can fuse odometry readings. The numbers used
below are robot specific, and should be tuned. */
public SwerveDrivePoseEstimator m_poseEstimator;
public SwerveDriveOdometry m_odometry;
public SwerveDrive(WPI_TalonFX leftFrontSteerMotor,WPI_TalonFX leftFrontWheelMotor,WPI_TalonFX rightFrontSteerMotor,WPI_TalonFX rightFrontWheelMotor,
WPI_TalonFX leftBackSteerMotor,WPI_TalonFX leftBackWheelMotor,WPI_TalonFX rightBackSteerMotor,WPI_TalonFX rightBackWheelMotor, CANCoder leftFrontEncoder,
CANCoder rightFrontEncoder,
CANCoder leftBackEncoder,
CANCoder rightBackEncoder)
{
m_leftFrontSteerMotor = leftFrontSteerMotor;
m_leftFrontWheelMotor = leftFrontWheelMotor;
m_rightFrontSteerMotor = rightFrontSteerMotor;
m_rightFrontWheelMotor = rightFrontWheelMotor;
m_leftBackSteerMotor = leftBackSteerMotor;
m_leftBackWheelMotor = leftBackWheelMotor;
m_rightBackSteerMotor = rightBackSteerMotor;
m_rightBackWheelMotor = rightBackWheelMotor;
m_leftFrontEncoder = leftFrontEncoder;
m_rightFrontEncoder = rightFrontEncoder;
m_leftBackEncoder = leftBackEncoder;
m_rightBackEncoder = rightBackEncoder;
public double speedAdjust = SwerveDriveConstants.JOYSTICK_TO_METERS_PER_SECOND_SLOW;
public boolean ignoreAngles;
public Rotation2d rotTarget = new Rotation2d();
modules = new SwerveModule[] {
new SwerveModule(m_leftFrontWheelMotor, m_leftFrontSteerMotor, m_leftFrontEncoder, SwerveDriveConstants.LEFT_FRONT_ENCODER_OFFSET), // Front Left
new SwerveModule(m_rightFrontWheelMotor, m_rightFrontSteerMotor, m_rightFrontEncoder, SwerveDriveConstants.RIGHT_FRONT_ENCODER_OFFSET), // Front Right
new SwerveModule(m_leftBackWheelMotor, m_leftBackSteerMotor, m_leftBackEncoder, SwerveDriveConstants.LEFT_BACK_ENCODER_OFFSET), // Back Left
new SwerveModule(m_rightBackWheelMotor, m_rightBackSteerMotor, m_rightBackEncoder, SwerveDriveConstants.RIGHT_BACK_ENCODER_OFFSET) // Back Right
};
//gyro.reset();
private final Field2d m_field = new Field2d();
public SwerveDrive(SwerveModule leftFront, SwerveModule leftBack, SwerveModule rightFront, SwerveModule rightBack, WPI_PigeonIMU gyro) {
m_leftFront = leftFront;
m_leftBack = leftBack;
m_rightFront = rightFront;
m_rightBack = rightBack;
m_gyro = gyro;
modules = new SwerveModule[] {m_leftFront, m_rightFront, m_leftBack, m_rightBack};
m_poseEstimator =
new SwerveDrivePoseEstimator(
m_gyro.getRotation2d(),
new Pose2d(),
m_kinematics,
VecBuilder.fill(1.0, 1.0, Units.degreesToRadians(1)),
VecBuilder.fill(Units.degreesToRadians(1)),
VecBuilder.fill(1.0, 1.0, Units.degreesToRadians(1)));
m_odometry = new SwerveDriveOdometry(m_kinematics, m_gyro.getRotation2d());
m_gyro.reset();
SmartDashboard.putData("Field", m_field);
}
//https://github.com/ZachOrr/MK3-Swerve-Example
/**
* Method to drive the robot using joystick info.
*
* @param xSpeed Speed of the robot in the x direction (forward).
* @param ySpeed Speed of the robot in the y direction (sideways).
* @param speeds[0] Speed of the robot in the x direction (forward).
* @param speeds[1] Speed of the robot in the y direction (sideways).
* @param rot Angular rate of the robot.
* @param fieldRelative Whether the provided x and y speeds are relative to the field.
*/
public void driveWithInput(double xSpeed, double ySpeed, double rot, boolean fieldRelative)
public void driveWithInput(double speedX, double speedY, double rot, boolean fieldRelative)
{
/*var speeds = new ChassisSpeeds(strafeX, strafeY, rotate * SwerveDriveConstants.ROTATION_SPEED //in rad/s );
driveFromSpeeds(speeds);*/
double xSpeedMetersPerSecond = xSpeed * SwerveDriveConstants.JOYSTICK_TO_METERS_PER_SECOND;
double ySpeedMetersPerSecond = ySpeed * SwerveDriveConstants.JOYSTICK_TO_METERS_PER_SECOND;
SwerveModuleState[] states =
kinematics.toSwerveModuleStates(
fieldRelative
? ChassisSpeeds.fromFieldRelativeSpeeds(xSpeedMetersPerSecond, ySpeedMetersPerSecond, rot*3, gyro.getRotation2d())
: new ChassisSpeeds(xSpeedMetersPerSecond, ySpeedMetersPerSecond, rot*3));
SwerveDriveKinematics.desaturateWheelSpeeds(states, Units.feetToMeters(SwerveDriveConstants.MAX_SPEED_FEET_PER_SEC));
for (int i = 0; i < states.length; i++) {
SwerveModule module = modules[i];
SwerveModuleState state = states[i];
module.setDesiredState(state);
}
}
//Converts a ChassisSpeed to SwerveModuleStates (targets)
public void driveFromSpeeds(ChassisSpeeds speeds)
{
//https://docs.wpilib.org/en/stable/docs/software/kinematics-and-odometry/swerve-drive-kinematics.html
// Convert to module states
SwerveModuleState[] moduleStates = m_kinematics.toSwerveModuleStates(speeds);
if (speedX == 0 && speedY == 0 && rot == 0) ignoreAngles = true;
else ignoreAngles = false;
Translation2d speed = new Translation2d(speedX, speedY);
double mag = speed.getNorm();
speed = speed.times(mag * speedAdjust);
// Front left module state
SwerveModuleState leftFront = SwerveModuleState.optimize(moduleStates[0], Rotation2d.fromDegrees(m_leftFrontEncoder.getPosition()));
// Front right module state
SwerveModuleState rightFront = SwerveModuleState.optimize(moduleStates[1], Rotation2d.fromDegrees(m_rightFrontEncoder.getPosition()));
// Back left module state
SwerveModuleState leftBack = SwerveModuleState.optimize(moduleStates[2], Rotation2d.fromDegrees(m_leftBackEncoder.getPosition()));
// Back right module state
SwerveModuleState rightBack = SwerveModuleState.optimize(moduleStates[3], Rotation2d.fromDegrees(m_rightBackEncoder.getPosition()));
//Set the motors
setSwerveMotors(leftFront, leftBack, rightFront, rightBack);
double xSpeedMetersPerSecond = -speed.getX();
double ySpeedMetersPerSecond = speed.getY();
SwerveModuleState[] states =
m_kinematics.toSwerveModuleStates(
fieldRelative
? ChassisSpeeds.fromFieldRelativeSpeeds(xSpeedMetersPerSecond, ySpeedMetersPerSecond, rot * SwerveDriveConstants.ROTATION_SPEED, m_gyro.getRotation2d())
: new ChassisSpeeds(xSpeedMetersPerSecond, ySpeedMetersPerSecond, rot * SwerveDriveConstants.ROTATION_SPEED));
setModuleStates(states);
}
public void driveWithInput(double leftX, double leftY, double rightX, double rightY, boolean fieldRelative)
{
ignoreAngles = leftX == 0 && leftY == 0 && rightX == 0 && rightY == 0;
Translation2d speed = new Translation2d(leftX, leftY);
speed = speed.times(speed.getNorm() * speedAdjust);
if (Math.abs(rightX) > OIConstants.RIGHT_AXIS_DEADBAND || Math.abs(rightY) > OIConstants.RIGHT_AXIS_DEADBAND)
rotTarget = new Rotation2d(rightX, -rightY).minus(new Rotation2d(0, 1));
double rot = rotTarget.minus(m_gyro.getRotation2d()).getRadians();
double xSpeedMetersPerSecond = -speed.getX();
double ySpeedMetersPerSecond = speed.getY();
SwerveModuleState[] states =
m_kinematics.toSwerveModuleStates(
fieldRelative
? ChassisSpeeds.fromFieldRelativeSpeeds(xSpeedMetersPerSecond, ySpeedMetersPerSecond, rot * SwerveDriveConstants.ROTATION_SPEED, m_gyro.getRotation2d())
: new ChassisSpeeds(xSpeedMetersPerSecond, ySpeedMetersPerSecond, rightX * SwerveDriveConstants.ROTATION_SPEED));
setModuleStates(states);
}
//Sets steering motors to PID values
public void setSwerveMotors(SwerveModuleState leftFront, SwerveModuleState leftBack, SwerveModuleState rightFront, SwerveModuleState rightBack)
{
/*//Set the Wheel motor speeds
m_leftFrontWheelMotor.set(m_leftFrontSteerMotor.get() + leftFront.speedMetersPerSecond * SwerveDriveConstants.WHEEL_SPEED);
m_rightFrontWheelMotor.set(m_rightFrontSteerMotor.get() + rightFront.speedMetersPerSecond * SwerveDriveConstants.WHEEL_SPEED);
m_leftBackWheelMotor.set(m_leftBackSteerMotor.get() + leftBack.speedMetersPerSecond * SwerveDriveConstants.WHEEL_SPEED);
m_rightBackWheelMotor.set(m_rightBackSteerMotor.get() + rightBack.speedMetersPerSecond * SwerveDriveConstants.WHEEL_SPEED);
//PID
m_leftFrontSteerMotor.set(TalonFXControlMode.Position, leftFront.angle.getDegrees() * 12000);
m_rightFrontSteerMotor.set(TalonFXControlMode.Position, rightFront.angle.getDegrees() * 12000);
m_leftBackSteerMotor.set(TalonFXControlMode.Position, leftBack.angle.getDegrees() * 12000);
m_rightBackSteerMotor.set(TalonFXControlMode.Position, rightBack.angle.getDegrees());
System.out.println("Target: " + leftFront.angle.getDegrees());*/
}
public void setModuleStates(SwerveModuleState[] desiredStates) {
SwerveDriveKinematics.desaturateWheelSpeeds(desiredStates, Units.feetToMeters(SwerveDriveConstants.MAX_SPEED_FEET_PER_SEC));
for (int i = 0; i < desiredStates.length; i++) {
SwerveModule module = modules[i];
SwerveModuleState state = desiredStates[i];
module.setDesiredState(state, false);
}
// modules[0].setDesiredState(desiredStates[0], false);
}
/*public void setSwerveGains(){
m_leftFrontSteerMotor.selectProfileSlot(SwerveDriveConstants.SWERVE_SLOT_IDX, SwerveDriveConstants.SWERVE_PID_LOOP_IDX);
m_leftFrontSteerMotor.config_kF(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kF, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_leftFrontSteerMotor.config_kP(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kP, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_leftFrontSteerMotor.config_kI(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kI, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_leftFrontSteerMotor.config_kD(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kD, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_rightFrontSteerMotor.selectProfileSlot(SwerveDriveConstants.SWERVE_SLOT_IDX, SwerveDriveConstants.SWERVE_PID_LOOP_IDX);
m_rightFrontSteerMotor.config_kF(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kF, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_rightFrontSteerMotor.config_kP(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kP, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_rightFrontSteerMotor.config_kI(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kI, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_rightFrontSteerMotor.config_kD(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kD, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_leftBackSteerMotor.selectProfileSlot(SwerveDriveConstants.SWERVE_SLOT_IDX, SwerveDriveConstants.SWERVE_PID_LOOP_IDX);
m_leftBackSteerMotor.config_kF(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kF, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_leftBackSteerMotor.config_kP(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kP, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_leftBackSteerMotor.config_kI(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kI, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_leftBackSteerMotor.config_kD(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kD, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_rightBackSteerMotor.selectProfileSlot(SwerveDriveConstants.SWERVE_SLOT_IDX, SwerveDriveConstants.SWERVE_PID_LOOP_IDX);
m_rightBackSteerMotor.config_kF(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kF, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_rightBackSteerMotor.config_kP(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kP, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_rightBackSteerMotor.config_kI(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kI, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
m_rightBackSteerMotor.config_kD(SwerveDriveConstants.SWERVE_SLOT_IDX, m_swerveGains.m_kD, SwerveDriveConstants.SWERVE_TIMEOUT_MS);
}*/
@Override
public void periodic() {
updateOdometry();
// SmartDashboard.putNumber("Pigeon Fused Heading", m_gyro.getFusedHeading(fstatus));
SmartDashboard.putNumber("Pigeon Yaw", m_gyro.getYaw());
// public void driveFieldRelative(double awayFromStation, double towardLeftBoundary, double rotate)
// {
// var speeds = ChassisSpeeds.fromFieldRelativeSpeeds(awayFromStation, towardLeftBoundary,
// rotate * SwerveDriveConstants.RotationSpeed, /*get odometry angle*/)
// }
// SmartDashboard.putNumber("Front Left", modules[0].driveMotor.getSelectedSensorPosition());
// SmartDashboard.putNumber("Front Right", modules[1].driveMotor.getSelectedSensorPosition());
// SmartDashboard.putNumber("Back Left", modules[2].driveMotor.getSelectedSensorPosition());
// SmartDashboard.putNumber("Back Right", modules[3].driveMotor.getSelectedSensorPosition());
// SmartDashboard.putNumber("Pigeon Get Angle", m_gyro.getAngle());
// SmartDashboard.putNumber("Pigeon Rotation 2D", m_gyro.getRotation2d().getDegrees());
// SmartDashboard.putStringArray("Fusion Status", new String[] {"Is Fusing: "+fstatus.bIsFusing, "Is Valid: "+fstatus.bIsValid, "Heading: "+fstatus.heading});
// m_field.setRobotPose(m_poseEstimator.getEstimatedPosition());
super.periodic();
}
/**
* Gets the distance between two given poses.
* @param p1 The first pose.
* @param p2 The second pose.
* @return Absolute distance between p1 and p2.
*/
public double distBtwPoses(Pose2d p1, Pose2d p2) {
return Math.sqrt(Math.pow(p1.getX() - p2.getX(), 2) + Math.pow(p1.getY() - p2.getY(), 2));
}
/**
* Returns a scalar from your distance to the hub to your target distance.
*
* @param target_dist The target distance.
* @return A scalar that multiplies your distance from the hub to get your target distance.
*/
public Pose2d poseGivenDist(double target_dist) {
Pose2d p1 = m_poseEstimator.getEstimatedPosition();
Pose2d p2 = SwerveDriveConstants.HUB_POSE;
double scalar = target_dist/distBtwPoses(p1, p2);
Pose2d new_pose = new Pose2d(p1.getX() * scalar, p1.getY() * scalar, p1.getRotation());
return new_pose;
}
/**
* Gets the current pose of the robot.
* @return Robot's current pose.
*/
public Pose2d getOdometry() {
// return m_odometry.getPoseMeters();
return m_poseEstimator.getEstimatedPosition();
}
/**
* Gets the current gyro using regression formula.
* @return Rotation2d object holding current gyro in radians
*/
public Rotation2d getRegGyro() {
double regCur = 0.6552670369 + m_gyro.getRotation2d().getDegrees() * 0.9926871527;
return new Rotation2d(regCur * Math.PI / 180);
}
/**
* Resets the odometry of the robot to the given pose.
*/
public void resetOdometry(Pose2d pose) {
m_poseEstimator.resetPosition(pose, m_gyro.getRotation2d());
}
/** Updates the field relative position of the robot.
*/
public void updateOdometry() {
m_poseEstimator.update( getRegGyro(),
modules[0].getState(),
modules[1].getState(),
modules[2].getState(),
modules[3].getState());
// Also apply vision measurements. We use 0.3 seconds in the past as an example -- on
// a real robot, this must be calculated based either on latency or timestamps.
// m_poseEstimator.addVisionMeasurement(
// m_poseEstimator.getEstimatedPosition(),
// Timer.getFPGATimestamp() - 0.1);
}
public void resetGyro(){
m_gyro.reset();
rotTarget = new Rotation2d(0);
}
/**
* Stop all four swerve modules.
*/
public void stopModules() {
modules[0].stop();
modules[1].stop();
modules[2].stop();
modules[3].stop();
}
public void highSpeed(boolean shift){
if (shift){
speedAdjust = SwerveDriveConstants.JOYSTICK_TO_METERS_PER_SECOND_FAST;
}
else{
speedAdjust = SwerveDriveConstants.JOYSTICK_TO_METERS_PER_SECOND_SLOW;
}
}
}