MechMania25 Java Starter Pack

Here's all the code you need to get started with making a bot for MechMania in Java. Just do these steps:

• Pre-Setup -- install Java, Node and the mm command line tools
• Setup -- Clone this repository and start running your bot!

Pre-Setup

1. Install Java, Node, and the mm tools with the instructions on the main wiki.

2. Make sure your JAVA_HOME environment variable is set correctly.

   • To check this on Windows, you can run echo %JAVA_HOME%. You should see a result similar to C:\Program Files\Java\jdk1.8.0_171. Note that this does NOT end with \bin.

   • For Mac and Linux users, you can run echo $JAVA_HOME. You should see a result similar to /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home.

   • If it is not set correctly, you will need to edit your environment variables.

     • For Windows, you can edit environment variables by searching "edit environment variables" in the start menu or by going to Control Panel -> System and Security -> System -> Advanced System Settings -> Environment Variables (bottom right).

       Find Path in the System Variables list (bottom list) and double click on it. Select New and paste in the `directory you want to add to PATH. Press OK until you are out of the menus.

     • For Linux and Mac users, run export JAVA_HOME=<path/to/jdk/>, replacing <path/to/jdk> so that the command refers to the correct directory.

     • Advice for Windows users:

       • Make sure to set the JAVA_HOME variable as a SYSTEM environment variable, rather than a user environment variable.
       • Make sure to NOT have \bin at the end of your JAVA_HOME environment variable.

3. For the Java starter pack, you will have to set up Maven.

   • Install Maven from here. We recommend using the binary zip archive.

     • Extract the zip archive to any directory

     • Add the bin directory of the created directory to the PATH environment variable.

       • For Windows, you can edit environment variables by searching "edit environment variables" in the start menu or by going to Control Panel -> System and Security -> System -> Advanced System Settings -> Environment Variables (bottom right).

         Find Path in the System Variables list (bottom list) and double click on it. Select New and paste in the bin directory of the your maven installation. Press OK until you are out of the menus.

       • For Mac users, run export PATH=/opt/apache-maven-<version>/bin:$PATH, replacing <version> so that the command refers to the correct directory.

     • Check that you have done this correctly by running mvn -v, which will print the version of your maven installation. If it runs successfully, you are done with the Pre-Setup!

Setup

1. Clone this repo (or fork it or download it somewhere as a ZIP)

2. Modify the script at Strategy.java.

   • Write your code in the doTurn method.
   • You may also add other files or dependencies. If you have any questions about this, we're here to help!

3. IMPORTANT: Run mvn clean install after any changes made to your Java code in order to build the file target/Bot.jar. This step should be completed whenever you want to run any mm commands with a new strategy.

4. Run mm play .

   • This will build the bot in the given directory (.) and then starts a game in which your bot fights against itself.
   • On Windows, if an mm play command fails, make sure to close any Java SE Runtime Binary processes with Task Manager.

5. To run two different bots against each other, run mm play bot1_directory bot2_directory.

6. To submit your bot, run mm push .

Use mm help for more information!

Game API Information

Within the package mech.mania.API, there are a variety of helpful functions for writing your bot. You can use the GameState object to run any of these functions.

The mech.mania.API package has a few other classes as well. We recommend only accessing the fields in these classes, since changing them might cause the GameState object to not properly represent the current state of the game.

See the documentation for detailed descriptions of all defined classes and all available functions.