fix encoder instantiation

[3501/2017steamworks] / src / org / usfirst / frc / team3501 / robot / subsystems / DriveTrain.java

diff --git a/src/org/usfirst/frc/team3501/robot/subsystems/DriveTrain.java b/src/org/usfirst/frc/team3501/robot/subsystems/DriveTrain.java
index 5389b235380b3a081a6c9c7b34b4e1b72b93edfe..6cacb48d812f1e8965ab124cc3745f6430615999 100644 (file)
--- a/src/org/usfirst/frc/team3501/robot/subsystems/DriveTrain.java
+++ b/src/org/usfirst/frc/team3501/robot/subsystems/DriveTrain.java
@@ -1,6 +1,7 @@
 package org.usfirst.frc.team3501.robot.subsystems;
 
 import org.usfirst.frc.team3501.robot.Constants;
+import org.usfirst.frc.team3501.robot.commands.driving.JoystickDrive;
 
 import com.ctre.CANTalon;
 
@@ -9,6 +10,11 @@ import edu.wpi.first.wpilibj.RobotDrive;
 import edu.wpi.first.wpilibj.command.Subsystem;
 
 public class DriveTrain extends Subsystem {
+  public static final double WHEEL_DIAMETER = 6; // inches
+  public static final int ENCODER_PULSES_PER_REVOLUTION = 256;
+  public static final double INCHES_PER_PULSE = WHEEL_DIAMETER * Math.PI
+      / ENCODER_PULSES_PER_REVOLUTION;
+
   private static DriveTrain driveTrain;
   private final CANTalon frontLeft, frontRight, rearLeft, rearRight;
   private final RobotDrive robotDrive;
@@ -23,12 +29,12 @@ public class DriveTrain extends Subsystem {
 
     // ENCODERS
     leftEncoder = new Encoder(Constants.DriveTrain.ENCODER_LEFT_A,
-        Constants.DriveTrain.ENCODER_LEFT_B);
+        Constants.DriveTrain.ENCODER_LEFT_B, false, Encoder.EncodingType.k4X);
     rightEncoder = new Encoder(Constants.DriveTrain.ENCODER_RIGHT_A,
-        Constants.DriveTrain.ENCODER_RIGHT_B);
+        Constants.DriveTrain.ENCODER_RIGHT_B, false, Encoder.EncodingType.k4X);
 
-    leftEncoder.setDistancePerPulse(Constants.DriveTrain.INCHES_PER_PULSE);
-    rightEncoder.setDistancePerPulse(Constants.DriveTrain.INCHES_PER_PULSE);
+    leftEncoder.setDistancePerPulse(INCHES_PER_PULSE);
+    rightEncoder.setDistancePerPulse(INCHES_PER_PULSE);
 
     // ROBOT DRIVE
     robotDrive = new RobotDrive(frontLeft, rearLeft, frontRight, rearRight);
@@ -43,11 +49,15 @@ public class DriveTrain extends Subsystem {
 
   // DRIVE METHODS
   public void setMotorValues(final double left, final double right) {
-    robotDrive.tankDrive(left, right);
+    frontLeft.set(left);
+    rearLeft.set(left);
+
+    frontRight.set(-right);
+    rearRight.set(-right);
   }
 
-  public void joystickDrive(final double left, final double right) {
-    robotDrive.tankDrive(left, right);
+  public void joystickDrive(final double thrust, final double twist) {
+    robotDrive.arcadeDrive(thrust, twist, true);
   }
 
   public void stop() {
@@ -119,6 +129,7 @@ public class DriveTrain extends Subsystem {
 
   @Override
   protected void initDefaultCommand() {
+    setDefaultCommand(new JoystickDrive());
   }
 
 }