allwpilib/eclipse-plugins/edu.wpi.first.wpilib.plugins.cpp/resources/templates/examples/PacGoat/src/Subsystems/DriveTrain.cpp

#include "DriveTrain.h"
#include "Commands/DriveWithJoystick.h"
#define _USE_MATH_DEFINES
#include <math.h>

DriveTrain::DriveTrain() :
		Subsystem("DriveTrain") {
	// Configure drive motors
	frontLeftCIM = new Victor(1);
	frontRightCIM = new Victor(2);
	backLeftCIM = new Victor(3);
	backRightCIM = new Victor(4);
	// XXX: LiveWindow::GetInstance()->AddActuator("DriveTrain", "Front Left CIM", (Victor) frontLeftCIM);
	// XXX: LiveWindow::GetInstance()->AddActuator("DriveTrain", "Front Right CIM", (Victor) frontRightCIM);
	// XXX: LiveWindow::GetInstance()->AddActuator("DriveTrain", "Back Left CIM", (Victor) backLeftCIM);
	// XXX: LiveWindow::GetInstance()->AddActuator("DriveTrain", "Back Right CIM", (Victor) backRightCIM);

	// Configure the RobotDrive to reflect the fact that all our motors are
	// wired backwards and our drivers sensitivity preferences.
	drive = new RobotDrive(frontLeftCIM, backLeftCIM, frontRightCIM, backRightCIM);
	drive->SetSafetyEnabled(true);
	drive->SetExpiration(0.1);
	drive->SetSensitivity(0.5);
	drive->SetMaxOutput(1.0);
	drive->SetInvertedMotor(RobotDrive::kFrontLeftMotor, true);
	drive->SetInvertedMotor(RobotDrive::kRearLeftMotor, true);
	drive->SetInvertedMotor(RobotDrive::kFrontRightMotor, true);
	drive->SetInvertedMotor(RobotDrive::kRearRightMotor, true);

	// Configure encoders
	rightEncoder = new Encoder(1, 2, true, Encoder::k4X);
	leftEncoder = new Encoder(5, 6, false, Encoder::k4X); // TODO: Correct encoder module.
	rightEncoder->SetPIDSourceParameter(PIDSource::kDistance);
	leftEncoder->SetPIDSourceParameter(PIDSource::kDistance);

    #ifdef REAL
		// Converts to feet
		rightEncoder->SetDistancePerPulse(0.0785398);
		leftEncoder->SetDistancePerPulse(0.0785398);
    #else
		// Convert to feet 4in diameter wheels with 360 tick simulated encoders
		rightEncoder->SetDistancePerPulse((4.0/*in*/*M_PI)/(360.0*12.0/*in/ft*/));
		leftEncoder->SetDistancePerPulse((4.0/*in*/*M_PI)/(360.0*12.0/*in/ft*/));
	#endif

	rightEncoder->Start();
	leftEncoder->Start();
	LiveWindow::GetInstance()->AddSensor("DriveTrain", "Right Encoder", rightEncoder);
	LiveWindow::GetInstance()->AddSensor("DriveTrain", "Left Encoder", leftEncoder);

	// Configure gyro
	gyro = new Gyro(2);
    #ifdef REAL
		gyro->SetSensitivity(0.007); // TODO: Handle more gracefully?
    #endif
	LiveWindow::GetInstance()->AddSensor("DriveTrain", "Gyro", gyro);
}

void DriveTrain::InitDefaultCommand() {
	SetDefaultCommand(new DriveWithJoystick());
}

void DriveTrain::TankDrive(Joystick* joy) {
	drive->TankDrive(joy->GetY(), joy->GetRawAxis(4));
}

void DriveTrain::TankDrive(double leftAxis, double rightAxis) {
	drive->TankDrive(leftAxis, rightAxis);
}

void DriveTrain::Stop() {
	drive->TankDrive(0.0, 0.0);
}

Encoder* DriveTrain::GetLeftEncoder() {
	return leftEncoder;
}

Encoder* DriveTrain::GetRightEncoder() {
	return rightEncoder;
}

double DriveTrain::GetAngle() {
	return gyro->GetAngle();
}