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Table Of Contents

Building Minecraft Server Modifications - Second Edition

By : Cody M. Sommer

Building Minecraft Server Modifications

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.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Deploying a Spigot Server

1. 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

2. 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

3. 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

4. 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

5. Plugin Commands

Adding a command to plugin.yml

Programming the command actions

Assigning the executor for the enchant command

Summary

6. Player Permissions

6. 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

7. 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

8. 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

9. 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

10. 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

Summary

The plugin that we created in this chapter invokes the save method whenever the data is modified. In the next chapter, you will learn how to periodically save data. If you wish to save data when the server is shut down, simply call the save method from the onDisable method of the plugin's main class. You can use your programming skills to expand this plugin. You can add permission nodes, which is done by simply adding them to plugin.yml. You can also add a config.yml file to modify messages or perhaps the amount of time that needs to be set for the upcoming warp delay. If you wish to incorporate a listener, you can listen for a PlayerRespawnEvent. Then, you can set a player's respawn location to their home. There are countless more ways to customize this plugin to your liking. Many teleportation plugins use a warp delay to prevent players from teleporting away from a fight. In the next chapter, we will expand this project by adding a warp delay using the Bukkit scheduler...

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Programming languages

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