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

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

import com.qualcomm.robotcore.eventloop.opmode.Autonomous;
import com.qualcomm.robotcore.eventloop.opmode.Disabled;
import com.qualcomm.robotcore.eventloop.opmode.LinearOpMode;
import com.qualcomm.robotcore.hardware.DcMotor;
import com.qualcomm.robotcore.util.ElapsedTime;

/**
 * This file illustrates the concept of driving a path based on time.
 * The code is structured as a LinearOpMode
 *
 * The code assumes that you do NOT have encoders on the wheels,
 *   otherwise you would use: RobotAutoDriveByEncoder;
 *
 *   The desired path in this example is:
 *   - Drive forward for 3 seconds
 *   - Spin right for 1.3 seconds
 *   - Drive Backward for 1 Second
 *
 *  The code is written in a simple form with no optimizations.
 *  However, there are several ways that this type of sequence could be streamlined,
 *
 * 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
 */

@Autonomous(name="Robot: Auto Drive By Time", group="Robot")
@Disabled
public class RobotAutoDriveByTime_Linear extends LinearOpMode {

    /* Declare OpMode members. */
    private DcMotor         leftDrive   = null;
    private DcMotor         rightDrive  = null;

    private ElapsedTime     runtime = new ElapsedTime();


    static final double     FORWARD_SPEED = 0.6;
    static final double     TURN_SPEED    = 0.5;

    @Override
    public void runOpMode() {

        // Initialize the drive system variables.
        leftDrive  = hardwareMap.get(DcMotor.class, "left_drive");
        rightDrive = hardwareMap.get(DcMotor.class, "right_drive");

        // To drive forward, most robots need the motor on one side to be reversed, because the axles point in opposite directions.
        // When run, this OpMode should start both motors driving forward. So adjust these two lines based on your first test drive.
        // Note: The settings here assume direct drive on left and right wheels.  Gear Reduction or 90 Deg drives may require direction flips
        leftDrive.setDirection(DcMotor.Direction.REVERSE);
        rightDrive.setDirection(DcMotor.Direction.FORWARD);

        // Send telemetry message to signify robot waiting;
        telemetry.addData("Status", "Ready to run");    //
        telemetry.update();

        // Wait for the game to start (driver presses PLAY)
        waitForStart();

        // Step through each leg of the path, ensuring that the Auto mode has not been stopped along the way

        // Step 1:  Drive forward for 3 seconds
        leftDrive.setPower(FORWARD_SPEED);
        rightDrive.setPower(FORWARD_SPEED);
        runtime.reset();
        while (opModeIsActive() && (runtime.seconds() < 3.0)) {
            telemetry.addData("Path", "Leg 1: %4.1f S Elapsed", runtime.seconds());
            telemetry.update();
        }

        // Step 2:  Spin right for 1.3 seconds
        leftDrive.setPower(TURN_SPEED);
        rightDrive.setPower(-TURN_SPEED);
        runtime.reset();
        while (opModeIsActive() && (runtime.seconds() < 1.3)) {
            telemetry.addData("Path", "Leg 2: %4.1f S Elapsed", runtime.seconds());
            telemetry.update();
        }

        // Step 3:  Drive Backward for 1 Second
        leftDrive.setPower(-FORWARD_SPEED);
        rightDrive.setPower(-FORWARD_SPEED);
        runtime.reset();
        while (opModeIsActive() && (runtime.seconds() < 1.0)) {
            telemetry.addData("Path", "Leg 3: %4.1f S Elapsed", runtime.seconds());
            telemetry.update();
        }

        // Step 4:  Stop
        leftDrive.setPower(0);
        rightDrive.setPower(0);

        telemetry.addData("Path", "Complete");
        telemetry.update();
        sleep(1000);
    }
}