Deerfield Robotics 2024

Codebase for FTC season 2024-25

Setting up the Development Environment

Downloading FtcRobotController and Team Code

Run the following command in the terminal at the location you wish to store the project.
This will download FtcRobotController, the library for FTC, and our team code.

git clone https://github.com/Big-Green-7245/teamcode2024

Then, open the project you just downloaded (called FtcRobotController) in Android Studio or Intellij.
These two IDEs (Android Studio & Intellij) are essentially the same, and you should use Android Studio unless you know what you're doing.

Now, you are ready to edit the Team Code located in /TeamCode/src/main/java/org/firstinspires/ftc/teamcode!

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Introduction to the Code

The main programs which the robot can execute are stored in the base teamcode folder.
The teleop folder contains main TeleOp programs.
The autonomous folder contains main autonomous programs.
Each feature/component on the robot is implemented in its own class in the modules folder.
The state folder offers a library to create a state machine, which is very useful in automating robots.
The util folder contains miscellaneous classes that help us interact with the robot and things like telemetry.
Roadrunner classes are located in messages, tuning, and the base teamcode folder. See https://rr.brott.dev/ for how to use roadrunner.

Resources

Many resources are available to get familiar with FTC code. Some are listed here:

• Discord (Unofficial FIRST Tech Challenge)
• Game Manual 0
• The Cookbook

Uploading the code to the robot

To upload code to the robot, connect to the Control Hub via USB or WiFi-Direct.

If connected wirelessly, you need to run this command after connecting.

adb connect 192.168.43.1:5555

Once connected, it should look like this:

Click the run (or rerun) button to upload the code.

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Trouble Shooting / Misc

Sdk Not Found

If you get an error saying that the Android Sdk is not found, try adding local.properties in your project root directory with the following line

sdk.dir=/Users/yourusernamehere/Library/Android/sdk

or pointing to wherever your Android Sdk is located.

Using Java 17+ 😎

To use Java 17, two files need to be edited: build.common.gradle and /FtcRobotController/build.gradle.
Note that everyone running this code would need to do this.

Locate

compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}

in both files and replace VERSON_1_8 with VERSION_17. Then reload gradle through a button that should appear towards the top right or through the gradle menu on the right (Gradle -> Reload All Gradle Projects).

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Continuous Integration

This repository uses GitHub Actions to automatically build the code on every push and pull request to the main branch.
This allows you to see if your code compiles successfully on every change.

For Maintainers

Greetings, future captains, here are the steps you need to do to get ready for a new season. This requires git knowledge! Please ask for help if you are unsure.

1. Create a new remote repository and team in the GitHub Organization
2. Add the remote repository to the team and give everyone maintainer access
3. Update the FTC Robot Controller using

   git remote add FtcRobotController https://github.com/FIRST-Tech-Challenge/FtcRobotController
   git fetch FtcRobotController
   git merge --squash --allow-unrelated-histories -X theirs FtcRobotController/master

4. Process the changed files and make sure not to overwrite our code (don't delete README.md for example)
5. Update the season and repository names in this README.md
6. Edit the local repository links in this README.md to the new remote repository
7. Commit and push the local repository to the new remote Repository