/* Copyright (c) 2017 FIRST. All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted (subject to the limitations in the disclaimer below) provided that * the following conditions are met: * * Redistributions of source code must retain the above copyright notice, this list * of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, this * list of conditions and the following disclaimer in the documentation and/or * other materials provided with the distribution. * * Neither the name of FIRST nor the names of its contributors may be used to endorse or * promote products derived from this software without specific prior written permission. * * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS * LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 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); } }