The Bukkit Scheduler | Building Minecraft Server Modifications

Sign In Start Free Trial

Book Overview & Buying
Table Of Contents

Building Minecraft Server Modifications

By : Cody M. Sommer

4 (6)

Building Minecraft Server Modifications

4 (6)

By: Cody M. Sommer

Overview of this book

If you have ever played Minecraft on a public server then the chances are that the server was powered by Bukkit. Bukkit plugins allow a server to be modified in more ways than you can imagine. Learning to program your own server mods will allow you to customize the game to your own liking. Building Minecraft Server Modifications is a complete guide that walks you through the creation of Minecraft server mods. From setting up a server, to testing your newly made plugins, this book teaches you everything you need to know. With the help of this book you can start practising for a career in software development or simply create something awesome to play with your friends. This book walks you through installing your own Minecraft server for you and your friends. Once your server is running, it will aid you in modifying the game by programming Bukkit plugins. You will learn how to program simple plugin features such as player commands and permissions. You will also learn more complex features including listening for events, creating a configurable plugin, and utilizing the Bukkit scheduler. All of this will be accomplished while writing your own server mods. You will become familiar with the most important aspects of the Bukkit API. Additional API features will become a breeze to learn after tackling these more complicated tasks.

Building Minecraft Server Modifications

Building Minecraft Server Modifications

Credits

Credits

About the Author

About the Author

About the Reviewers

About the Reviewers

www.PacktPub.com

www.PacktPub.com

Preface

Preface

Free Chapter

Deploying a CraftBukkit Server

Deploying a CraftBukkit Server

Installation

Setup

Minecraft/Bukkit server commands

Port forwarding

Summary

Learning the Bukkit API

Learning the Bukkit API

Introduction to APIs

The Bukkit API documentation

Navigating the Bukkit API documentation

Understanding the Java documentation

Exploring Bukkit API

Summary

Creating Your First Bukkit Plugin

Creating Your First Bukkit Plugin

Installing an IDE

Creating a new project

Adding Bukkit as a library

The essentials of a Bukkit plugin

Making and calling new methods

Expanding your code

Summary

Testing on the CraftBukkit Server

Testing on the CraftBukkit Server

Building the JAR file

Installing your plugin

Testing your plugin

Testing new versions of your plugin

Summary

Plugin Commands

Plugin Commands

Adding a command to plugin.yml

Programming the command actions

Assigning the executor for the command

Summary

Player Permissions

Player Permissions

The benefits of permissions

Understanding permission nodes

Adding a permission node to plugin.yml

Assigning a permission node to a plugin command

Testing player permissions

Using a third-party permissions plugin

Using permission nodes throughout your plugins

Summary

The Bukkit Event System

The Bukkit Event System

Choosing an event

Registering an event listener

Listening for an event

Canceling an event

Communicating among events

Modifying an event as it occurs

Creating more plugins on your own

Summary

Making Your Plugin Configurable

Making Your Plugin Configurable

Configurable data types

Writing a config.yml file

Saving, loading, and reloading the config file

Reading and storing the configured values

Using configured settings within your plugin

ItemStack within a configuration

YAML configuration hierarchy

Storing configuration values as variables

Accessing variables from another class

Summary

Saving Your Data

Saving Your Data

Types of data that can be saved

Which data to save and when

A sample teleportation plugin

Writing a ConfigurationSerializable class

Saving data to a YAML configuration

Loading data from a YAML configuration

Summary

The Bukkit Scheduler

The Bukkit Scheduler

Creating a BukkitRunnable class

Synchronous versus asynchronous tasks

Running a task from a BukkitRunnable class

Running a task later from a BukkitRunnable

Running a task timer from a BukkitRunnable class

Writing a repeating task for a plugin

Adding a delayed task to a plugin

Executing a code asynchronously

Summary

Index

Index

Executing a code asynchronously

We can improve the Warper plugin even more by writing its data to file asynchronously. This will help keep the main thread of the server running smoothly and lag free.

Look at the current save method. We add the data to a YamlConfiguration and then write the configuration to the file. Not all of this method can be run asynchronously. Adding the data to the configuration must be done synchronously to ensure that it is not modified while it is being added. However, the save method call on the configuration may be called asynchronously. We will place the entire try/catch block within a new BukkitRunnable. We will then run it as a task asynchronously. This task will be stored as a static variable in the Warper class. This is shown in the following code:

BukkitRunnable saveRunnable = new BukkitRunnable() {
  @Override
  public void run() {
    try {
      //Write the configuration to our save file
      config.save(new File(plugin.getDataFolder(), "warps.yml"));...

CONTINUE READING

83

Tech Concepts

36

Programming languages

73

Tech Tools

Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.

Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.

50+ new titles added per month and exclusive early access to books as they are being written.

Building Minecraft Server Modifications

Search

Your notes and bookmarks