Book Image

Building Minecraft Server Modifications - Second Edition

By : Cody M. Sommer
4 (1)
Book Image

Building Minecraft Server Modifications - Second Edition

4 (1)
By: Cody M. Sommer

Overview of this book

Minecraft is a sandbox game that allows you to play it in any way you want. Coupled with a multiplayer server powered by Spigot, you can customize the game even more! Using the Bukkit API, anyone interested in learning how to program can control their Minecraft world by developing server plugins. This book is a great introduction to software development through the wonderful world of Minecraft. We start by instructing you through how to set up your home PC for Minecraft server development. This includes an IDE complete with the required libraries as well as a Spigot server to test on. You will be guided through writing code for several different plugins. Each chapter teaches you new skills to create plugins of increasing complexity, and each plugin adds a new concept of the Bukkit API By the end of the book, you will have all the knowledge you need about the API to successfully create any type of plugin. You can then practice and build your Java skills through developing more mods for their server.

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Building Minecraft Server Modifications - Second Edition
Cody M. Sommer
Dec, 2015 | 158 pages
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Table of Contents (17 chapters)
Building Minecraft Server Modifications Second Edition
Building Minecraft Server Modifications Second Edition
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Deploying a Spigot Server
Deploying a Spigot Server
Introduction to Spigot
Installing a new Spigot server
Setting up a new server
Minecraft/Bukkit server commands
Port forwarding
Summary
2
Learning the Bukkit API
Learning the Bukkit API
Introduction to APIs
The Bukkit API documentation
Navigating through the Bukkit API documentation
Understanding the Java documentation
Exploring the Bukkit API
Summary
3
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
4
Testing on the Spigot Server
Testing on the Spigot Server
Building a JAR file
Installing the plugin
Testing your plugin
Testing new versions of the plugin
Debugging the code
Summary
5
Plugin Commands
Plugin Commands
Adding a command to plugin.yml
Programming the command actions
Assigning the executor for the enchant command
Summary
6
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
7
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
8
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
9
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
10
The Bukkit Scheduler
The Bukkit Scheduler
Creating a BukkitRunnable class
Synchronous versus asynchronous tasks
Writing a repeating task for a plugin
Adding a delayed task to a plugin
Executing code asynchronously
Summary
Index
Index

YAML configuration hierarchy

Note the hierarchy when working with ItemStack in YAML. This is similar to how commands and permissions have nested values in the plugin.yml files. We can utilize a hierarchy within the config file to make it easier to use and understand.

We want to give items to two types of mobs, namely Zombie and Skeleton. Each type will have a unique armor and weapon. This means that we will need 10 different ItemStack classes. We can name them ZombieHolding, SkeletonHolding, ZombieHelmet, SkeletonHelmet, and so on. However, a hierarchy will be much more efficient. We will have a Zombie key and a Skeleton key. Within each zombie and skeleton, we will have a key for each item. The following is a sample of the hierarchy of the mob armor segment of the config file:

Zombie:
  holding:
    ==: org.bukkit.inventory.ItemStack
    type: STONE_SWORD
  helmet:
    ==: org.bukkit.inventory.ItemStack
    type: CHAINMAIL_HELMET

Skeleton:
  holding:
    ==: org.bukkit.inventory.ItemStack...
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