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https://github.com/Team4388/Swerve-Drive.git
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WIP Swerve Drive Subsystem
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public class SwerveDrive
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{
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SwerveDriveKinematics m_kinematics;
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public SwerveDrive()
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{
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double halfWidth = SwerveDriveConstants.WIDTH / 2.d;
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double halfHeight = SwerveDriveConstants.HEIGHT / 2.d;
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Translation2d m_frontLeftLocation = new Translation2d(halfHeight, halfWidth);
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Translation2d m_frontRightLocation = new Translation2d(halfHeight, -halfWidth);
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Translation2d m_backLeftLocation = new Translation2d(-halfHeight, halfWidth);
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Translation2d m_backRightLocation = new Translation2d(-halfHeight, -halfWidth);
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m_kinematics = new SwerveDriveKinematics(m_frontLeftLocation, m_frontRightLocation, m_backLeftLocation, m_backRightLocation);
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}
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public void drive(double strafeX, double strafeY, double rotate)
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{
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//https://jacobmisirian.gitbooks.io/frc-swerve-drive-programming/content/chapter1.html
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var speeds = new ChassisSpeeds(strafeX, strafeY, rotate * SwerveDriveConstants.RotationSpeed /*in rad/s */);
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// Convert to module states
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SwerveModuleState[] moduleStates = m_kinematics.toSwerveModuleStates(speeds);
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// Front left module state
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SwerveModuleState frontLeft = SwerveModuleState.optimize(moduleStates[0], new Rotation2d(/*get encoder positions*/));
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// Front right module state
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SwerveModuleState frontRight = SwerveModuleState.optimize(moduleStates[1], new Rotation2d(/*get encoder positions*/));
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// Back left module state
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SwerveModuleState backLeft = SwerveModuleState.optimize(moduleStates[2], new Rotation2d(/*get encoder positions*/));
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// Back right module state
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SwerveModuleState backRight = SwerveModuleState.optimize(moduleStates[3], new Rotation2d(/*get encoder positions*/));
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}
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public void driveFieldRelative(double awayFromStation, double towardLeftBoundary, double rotate)
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{
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var speeds = ChassisSpeeds.fromFieldRelativeSpeeds(awayFromStation, towardLeftBoundary,
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rotate * SwerveDriveConstants.RotationSpeed, /*get odometry angle*/)
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}
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}
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