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1 | package org.usfirst.frc.team3501.robot.commands.driving; |
2 | ||
3 | import org.usfirst.frc.team3501.robot.Robot; | |
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4 | import org.usfirst.frc.team3501.robot.subsystems.DriveTrain; |
5 | import org.usfirst.frc.team3501.robot.utils.PIDController; | |
aa160dfd | 6 | |
e12d6901 | 7 | import edu.wpi.first.wpilibj.Preferences; |
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8 | import edu.wpi.first.wpilibj.command.Command; |
9 | ||
10 | /** | |
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11 | * This command makes the robot drive a specified distance using encoders on the |
12 | * robot and using a feedback loop | |
aa160dfd | 13 | * |
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14 | * parameters: distance the robot will move in inches motorVal: the motor input |
15 | * to set the motors to | |
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16 | */ |
17 | public class DriveDistance extends Command { | |
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18 | private DriveTrain driveTrain = Robot.getDriveTrain(); |
19 | private double maxTimeOut; | |
e12d6901 | 20 | private double target; |
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21 | private double zeroAngle; |
22 | private Preferences prefs; | |
23 | private PIDController driveController; | |
e12d6901 | 24 | |
35527abe | 25 | private double gyroP; |
aa160dfd | 26 | |
db326f40 | 27 | public DriveDistance(double distance, double maxTimeOut) { |
9b35aa55 | 28 | requires(driveTrain); |
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29 | this.maxTimeOut = maxTimeOut; |
30 | this.target = distance; | |
31 | ||
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32 | this.gyroP = driveTrain.getGyroController().getP(); |
33 | ||
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34 | this.driveController = driveTrain.getDriveController(); |
35 | this.driveController.setDoneRange(0.5); | |
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36 | this.driveController.setMaxOutput(1.0); |
37 | this.driveController.setMinDoneCycles(5); | |
d17d868d | 38 | } |
39 | ||
d17d868d | 40 | @Override |
41 | protected void initialize() { | |
e12d6901 | 42 | this.driveTrain.resetEncoders(); |
e12d6901 | 43 | this.driveController.setSetPoint(this.target); |
d17d868d | 44 | } |
45 | ||
d17d868d | 46 | @Override |
47 | protected void execute() { | |
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48 | double xVal = gyroP * (driveTrain.getAngle() - zeroAngle); |
49 | double yVal = driveController.calcPID(driveTrain.getAvgEncoderDistance()); | |
e12d6901 | 50 | |
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51 | double leftDrive = yVal - xVal; |
52 | double rightDrive = yVal + xVal; | |
e12d6901 | 53 | this.driveTrain.setMotorValues(leftDrive, rightDrive); |
d17d868d | 54 | } |
55 | ||
d17d868d | 56 | @Override |
57 | protected boolean isFinished() { | |
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58 | return timeSinceInitialized() >= maxTimeOut |
59 | || this.driveController.isDone(); | |
d17d868d | 60 | } |
61 | ||
d17d868d | 62 | @Override |
63 | protected void end() { | |
64 | } | |
65 | ||
d17d868d | 66 | @Override |
67 | protected void interrupted() { | |
e12d6901 | 68 | end(); |
d17d868d | 69 | } |
aa160dfd | 70 | } |