Config Development Introduction

This section goes over some general information, and the basic setup preceding actual config pack development, including a basic overview of how Terra works and the process of setting up an appropriate development workspace.

How Terra Works as a Platform

Terra is composed of several parts that facilitate world generation:

A Voxel World Generation API

The base framework for world generation.

An Addon Loader

Allows for loading addons, which integrate the API to provide functionality.

Core Addons

A suite of addons that provides standard functionality to Terra.

Configuration Packs

A collection of configuration files that define how worlds generate, utilizing the functionality provided by addons.

Platform Implementations

The layer between the platform (such as Bukkit or Fabric) and the API.

Platform implementations typically package the API, addon loader, core addons, and a default configuration pack together to work as one cohesive unit.

As a config developer, you will primarily be utilizing addons via Terra’s configuration system to define how worlds generate. It is still a good idea to have an understanding of how these components interact, however is not strictly necessary.

1. Setting Up Your Test Environment


Do not follow the rest of this guide on any live production environment.

Before beginning development on a new pack, you will need a suitable server or client to test with. We recommend using a Fabric client to develop config packs on, however this choice is ultimately up to you. You can refer to the Getting Started page for instructions on how to get Terra up and running on your desired platform.

Accessing Console

Once you have Terra running on your platform of choice, you should ensure you have access to your console. This will be dependent on the platform you’re running Terra on, as well as the launcher or wrapper you start it from. We won’t be covering how to find the console on every platform as that is outside the scope of this guide.

Mojang Minecraft Launcher

1. Start the launcher and navigate to the settings page by clicking on this button in the bottom left:

  1. Enable displaying the output log on game startup here:


A window with the console log will now open when you start Minecraft.

MultiMC Launcher
  1. Open up the MultiMC settings window.

  2. Enable console log display on launch:


A window with the console log will now open when you start Minecraft.

Picking an Editor

When developing config packs, an editor will be the main tool you use, so It’s important that you use a suitable one for the job. You’re free to use any editor you’re comfortable with, but we highly suggest using one with the following features:

Syntax Highlighting

Having syntax highlighting in an editor will make understanding and writing configs much easier, as you will be able to tell at a glance how things are structured. To emphasize this point, here is a comparison:

Without Highlighting


With Highlighting

Built In File Explorer

Using a text editor which lets you open entire folders as projects rather than just individual files will make pack development more streamlined and convenient. The ability to quickly swap between configs, view your pack hierarchy at a glance, and manage subdirectories within your text editor is a must if you want to get things done conveniently. This will save you plenty of time not having to manage an external file editor on top of your editor tabs and or instances.


2. Locating the Terra Directory

You will need to know where the Terra directory is located, as this will be where all the files relevant to config development go:




Within this directory are two subdirectories that you should know about:


Contains all your installed config packs. By default, Terra will come pre-installed with a config pack under the file name inside this directory.


Contains all your installed addons. Similarly to the default pack, Terra will also come pre-installed with a set of Core Addons as explained at the beginning of this page.

3. Beginning Config Development

From this point on, you have the option of either beginning a new pack from scratch, or modifying an existing pack.

Creating a Pack From Scratch

Starting from nothing is a great way to understand what every part of the process entails. You will learn how each part of config development connects together to construct a fully fledged world generator. If you want to make something totally unique and personalized for a server or personal project, or just want to learn how world generation works, we recommend following this guide.

Modifying an Existing Pack

Making changes to an existing pack is a more hands off approach where most of the heavy lifting has been done for you, great for if you just want to tweak a couple small details here and there. This guide won’t explain as much as the ‘from scratch’ guide, so if you’re having difficulties understanding how to make modifications, we recommend following that in addition to this guide.