power-play/FtcRobotController/src/main/java/org/firstinspires/ftc/robotcontroller/external/samples/ConceptExternalHardwareClass.java

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package org.firstinspires.ftc.robotcontroller.external.samples;

import com.qualcomm.robotcore.eventloop.opmode.Disabled;
import com.qualcomm.robotcore.eventloop.opmode.LinearOpMode;
import com.qualcomm.robotcore.eventloop.opmode.TeleOp;
import com.qualcomm.robotcore.util.Range;

/**
 * This OpMode Sample illustrates how to use an external "hardware" class to modularize all the robot's sensors and actuators.
 * This approach is very efficient because the same hardware class can be used by all of your teleop and autonomous OpModes
 * without requiring many copy & paste operations.  Once you have defined and tested the hardware class with one OpMode,
 * it is instantly available to other OpModes.
 *
 * The real benefit of this approach is that as you tweak your robot hardware, you only need to make changes in ONE place (the Hardware Class).
 * So, to be effective you should put as much or your hardware setup and access code as possible in the hardware class.
 * Essentially anything you do with hardware in BOTH Teleop and Auto should likely go in the hardware class.
 *
 * The Hardware Class is created in a separate file, and then an "instance" of this class is created in each OpMode.
 * In order for the class to do typical OpMode things (like send telemetry data) it must be passed a reference to the
 * OpMode object when it's created, so it can access all core OpMode functions.  This is illustrated below.
 *
 * In this concept sample, the hardware class file is called RobotHardware.java and it must accompany this sample OpMode.
 * So, if you copy ConceptExternalHardwareClass.java into TeamCode (using Android Studio or OnBotJava) then RobotHardware.java
 * must also be copied to the same location (maintaining its name).
 *
 * For comparison purposes, this sample and its accompanying hardware class duplicates the functionality of the
 * RobotTelopPOV_Linear opmode.  It assumes three motors (left_drive, right_drive and arm) and two servos (left_hand and right_hand)
 *
 * View the RobotHardware.java class file for more details
 *
 *  Use Android Studio to Copy this Class, and Paste it into your team's code folder with a new name.
 *  Remove or comment out the @Disabled line to add this opmode to the Driver Station OpMode list
 *
 *  In OnBot Java, add a new OpMode, drawing from this Sample; select TeleOp.
 *  Also add another new file named RobotHardware.java, drawing from the Sample with that name; select Not an OpMode.
 */

@TeleOp(name="Concept: Robot Hardware Class", group="Robot")
@Disabled
public class ConceptExternalHardwareClass extends LinearOpMode {

    // Create a RobotHardware object to be used to access robot hardware.
    // Prefix any hardware functions with "robot." to access this class.
    RobotHardware   robot       = new RobotHardware(this);

    @Override
    public void runOpMode() {
        double drive        = 0;
        double turn         = 0;
        double arm          = 0;
        double handOffset   = 0;

        // initialize all the hardware, using the hardware class. See how clean and simple this is?
        robot.init();

        // Send telemetry message to signify robot waiting;
        // Wait for the game to start (driver presses PLAY)
        waitForStart();

        // run until the end of the match (driver presses STOP)
        while (opModeIsActive()) {

            // Run wheels in POV mode (note: The joystick goes negative when pushed forward, so negate it)
            // In this mode the Left stick moves the robot fwd and back, the Right stick turns left and right.
            // This way it's also easy to just drive straight, or just turn.
            drive = -gamepad1.left_stick_y;
            turn  =  gamepad1.right_stick_x;

            // Combine drive and turn for blended motion. Use RobotHardware class
            robot.driveRobot(drive, turn);

            // Use gamepad left & right Bumpers to open and close the claw
            // Use the SERVO constants defined in RobotHardware class.
            // Each time around the loop, the servos will move by a small amount.
            // Limit the total offset to half of the full travel range
            if (gamepad1.right_bumper)
                handOffset += robot.HAND_SPEED;
            else if (gamepad1.left_bumper)
                handOffset -= robot.HAND_SPEED;
            handOffset = Range.clip(handOffset, -0.5, 0.5);

            // Move both servos to new position.  Use RobotHardware class
            robot.setHandPositions(handOffset);

            // Use gamepad buttons to move arm up (Y) and down (A)
            // Use the MOTOR constants defined in RobotHardware class.
            if (gamepad1.y)
                arm = robot.ARM_UP_POWER;
            else if (gamepad1.a)
                arm = robot.ARM_DOWN_POWER;
            else
                arm = 0;

            robot.setArmPower(arm);

            // Send telemetry messages to explain controls and show robot status
            telemetry.addData("Drive", "Left Stick");
            telemetry.addData("Turn", "Right Stick");
            telemetry.addData("Arm Up/Down", "Y & A Buttons");
            telemetry.addData("Hand Open/Closed", "Left and Right Bumpers");
            telemetry.addData("-", "-------");

            telemetry.addData("Drive Power", "%.2f", drive);
            telemetry.addData("Turn Power",  "%.2f", turn);
            telemetry.addData("Arm Power",  "%.2f", arm);
            telemetry.addData("Hand Position",  "Offset = %.2f", handOffset);
            telemetry.update();

            // Pace this loop so hands move at a reasonable speed.
            sleep(50);
        }
    }
}