Autoformat

Also removes legacy v1 code from v2

.github/ISSUE_TEMPLATE/BUG_REPORT.md

@@ -37,10 +37,13 @@ assignees: ""
 -->
 
 - [ ] I have checked that I am on the latest version of Terra.
-- [ ] I have searched the github issue tracker for similar issues, including closed ones.
+- [ ] I have searched the github issue tracker for similar issues, including
-- [ ] I have made sure that this is not a bug with another mod or plugin, and it is Terra that is causing the issue.
+  closed ones.
-- [ ] I have checked that this is an issue with Terra and not an issue with the pack I am using.
+- [ ] I have made sure that this is not a bug with another mod or plugin, and it
-  <!-- If this is an issue with the default Terra pack, please open an issue on the pack repo: https://github.com/PolyhedralDev/TerraDefaultConfig/issues/new -->
+  is Terra that is causing the issue.
+- [ ] I have checked that this is an issue with Terra and not an issue with the
+  pack I am using.
+  <!-- If this is an issue with the default Terra pack, please open an issue on the pack repo: https://github.com/PolyhedralDev/TerraOverworldConfig/issues/new -->
 - [ ] I have attached a copy of the `latest.log` file
 - [ ] I have filled out and provided all the appropriate information.
 

.github/ISSUE_TEMPLATE/FEATURE_REQUEST.md

@@ -31,9 +31,11 @@ assignees: ""
 -->
 
 - [ ] I have checked that I am on the latest version of Terra.
-- [ ] I have searched github for similar features requests, including closed ones, and found none.
+- [ ] I have searched github for similar features requests, including closed
+  ones, and found none.
 - [ ] I believe this is within the scope of Terra.
-- [ ] This feature request is for *all* of Terra, and isn't something that should be implemented by a pack or addon.
+- [ ] This feature request is for *all* of Terra, and isn't something that
+  should be implemented by a pack or addon.
 
 ## Feature Description
 

.github/ISSUE_TEMPLATE/OTHER_ISSUES.md

@@ -1,6 +1,7 @@
 ---
 name: "Other Issue"
-about: "Use this template if your issue doesn't accurately fit into any of the other categories."
+about: "Use this template if your issue doesn't accurately fit into any of the
+other categories."
 title: ""
 labels: "Type: Question, Status: Pending"
 assignees: ""

.github/PULL_REQUEST_TEMPLATE.md

@@ -33,9 +33,11 @@
 
 <!-- In order to be accepted, your changes must be under the GPLv3 license. Please check one of the following: -->
 
-- [ ] I am the original author of this code, and I am willing to release it under [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html).
+- [ ] I am the original author of this code, and I am willing to release it
-- [ ] I am not the original author of this code, but it is in public domain or released
+  under [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html).
-  under [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html) or a compatible license.
+- [ ] I am not the original author of this code, but it is in public domain or
+  released under [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html) or a
+  compatible license.
     <!--
       Please provide reliable evidence of this.
       NOTE: for compatible licenses, you must make sure to add the included license somewhere in the program, if so required.
@@ -82,7 +84,8 @@
 
 #### Compatiblity
 
-- [ ] Breaking change <!-- A fix, or a feature, that breaks some previous functionality to Terra. -->
+- [ ] Breaking
+  change <!-- A fix, or a feature, that breaks some previous functionality to Terra. -->
 - [ ] Non-Breaking change.
     <!--
         A change which does not break *any* previous functionality of Terra.
@@ -94,8 +97,9 @@
 
 #### Contribution Guidelines.
 
-- [ ] I have read the [`CONTRIBUTING.md`](https://github.com/PolyhedralDev/Terra/blob/master/CONTRIBUTING.md) document in the root of the
+- [ ] I have read
-  git repository.
+  the [`CONTRIBUTING.md`](https://github.com/PolyhedralDev/Terra/blob/master/CONTRIBUTING.md)
+  document in the root of the git repository.
 - [ ] My code follows the code style for this
   project. <!-- There is an included `.editorconfig` file in the base of the repo. Please use a plugin for your IDE of choice that follows those settings. -->
 
@@ -111,4 +115,4 @@
     <!--
         If it only introduces small changes, you don't need to add tests.
         But if you add big changes, you should probably at least write *some* testing, where applicable.
-    -->
+    -->

.gitignore

@@ -65,6 +65,8 @@ hs_err_pid*
 .idea/**/dictionaries
 .idea/**/shelf
 
+.idea/
+
 # Generated files
 .idea/**/contentModel.xml
 
@@ -127,17 +129,123 @@ fabric.properties
 # Android studio 3.1+ serialized cache file
 .idea/caches/build_file_checksums.ser
 
-# Ignore Gradle build output directory
+### Windows template
-build
+# Windows thumbnail cache files
-/target/
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
 
-.idea/sonarlint/**
+# Dump file
-.idea/codeStyles/**
+*.stackdump
-.idea/**.xml
+
-.idea/modules/**.iml
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+### macOS template
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### Linux template
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+### Application
+# Archive love files
+*.log.gz
+
+# binary files
+*.bin
+
+# Database files
+*.db
+
+# Cache files
+*.meta
+*.data
+
+### JEnv template
+# JEnv local Java version configuration file
+.java-version
+
+# Used by previous versions of JEnv
+.jenv-version
+
+### VisualStudioCode template
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+*.code-workspace
+
+# Local History for Visual Studio Code
+.history/
+
+### NetBeans template
+**/nbproject/private/
+**/nbproject/Makefile-*.mk
+**/nbproject/Package-*.bash
+build/
+nbbuild/
+dist/
+nbdist/
+.nb-gradle/
+
+###
+**/target/
 
-!lib/*.jar
 /run/
-idea/**
 
-testDir/
+**/testDir/
+
+platforms/**/run/**
+

CODE_OF_CONDUCT.md

@@ -27,8 +27,8 @@ for everyone. We do not tolerate harassment of participants in any form.
 ## When and How to Use These Guidelines
 
 This code of conduct applies to all Terra community spaces, both online and off.
-This applies to the github discussion tab, the 
+This applies to the github discussion tab, the
-[Polyhedral Development community discord server](https://discord.gg/PXUEbbF), 
+[Polyhedral Development community discord server](https://discord.gg/PXUEbbF),
 and any other Terra community. In addition, we may choose to invoke them in
 instances of harassment outside the Terra communities, and we will punish the
 responsible individuals appropriately. We will not tolerate harassment in any
@@ -58,8 +58,8 @@ listen carefully, apologize sincerely, and correct the behavior going forward.
 Any member of the Terra community should always be open to new ideas and must
 always be open to the possibility of being wrong. Nobody can always be right,
 and we are only human; we are
-[fallible](https://www.merriam-webster.com/dictionary/fallible) by nature.
+[fallible](https://www.merriam-webster.com/dictionary/fallible) by nature. It is
-It is okay to make mistakes, but we must be willing to admit when we make one.
+okay to make mistakes, but we must be willing to admit when we make one.
 
 ### Be Direct but Professional
 
@@ -315,19 +315,15 @@ Terra has a global moderation team which is currently comprised of the following
 members:
 
 - solonovamax
-  -
+    - discord: [@solonovamax#6983](https://discord.com/channels/@me/566146322273402881)*
-  discord: [@solonovamax#6983](https://discord.com/channels/@me/566146322273402881)*
     - github: [@solonovamax](https://github.com/solonovamax)
-    -
+    - email: [solonovamax@12oclockpoint.com](mailto:solonovamax@12oclockpoint.com)
-  email: [solonovamax@12oclockpoint.com](mailto:solonovamax@12oclockpoint.com)
 - dfsek
-  -
+    - discord: [@dfsek#4208](https://discord.com/channels/@me/378350362236682240)*
-  discord: [@dfsek#4208](https://discord.com/channels/@me/378350362236682240)*
     - github: [@dfsek](https://github.com/dfsek)
     - email: [dfsek@protonmail.com](mailto:dfsek@protonmail.com)
 - duplex (duplexsystem)
-  -
+    - discord: [@Duplex#0797](https://discord.com/channels/@me/356822848641171456)*
-  discord: [@Duplex#0797](https://discord.com/channels/@me/356822848641171456)*
     - github: [@duplexsystem](https://github.com/duplexsystem)
     - email: [duplexsys@protonmail.com](mailto:duplexsys@protonmail.com)
 
@@ -401,32 +397,17 @@ issue on this github repo, or contact a member of the global moderation team.
 ## License and Attribution
 
 This set of guidelines is distributed under a
-[Creative Commons Attribution-ShareAlike license](https://creativecommons.org/licenses/by-sa/3.0/)
+[Creative Commons Attribution-ShareAlike license](https://creativecommons.org/licenses/by-sa/3.0/).
-.
 
-These guidelines have been adapted from
+These guidelines have been adapted with modifications from the following sources:
-[Mozilla's Community Participation Guidelines](https://www.mozilla.org/en-US/about/governance/policies/participation/)
-, which were adapted from:
 
-- Mozilla's original Community Participation Guidelines
+- [Mozilla's Community Participation Guidelines](https://www.mozilla.org/en-US/about/governance/policies/participation/)
 - The [Ubuntu Code of Conduct](https://ubuntu.com/community/code-of-conduct)
--
+- Mozilla's [View Source Conference Code of Conduct](https://viewsourceconf.org/berlin-2016/code-of-conduct/)
-
+- The [Rust Language Code of Conduct](https://www.rust-lang.org/policies/code-of-conduct)
-Mozilla's [View Source Conference Code of Conduct](https://viewsourceconf.org/berlin-2016/code-of-conduct/)
+- The [Stumptown Syndicate's Citizen Code of Conduct](http://citizencodeofconduct.org/)
-
+- The [LGBTQ in Technology Code of Conduct](https://lgbtq.technology/coc.html)
-- And
+- The [WisCon code of conduct](http://wiscon.net/policies/anti-harassment/code-of-conduct/)
-  the [Rust Language Code of Conduct](https://www.rust-lang.org/policies/code-of-conduct)
-
-which in turn were based
-on [Stumptown Syndicate's Citizen Code of Conduct](http://citizencodeofconduct.org/)
-, along with some adapted text from
-the [LGBTQ in Technology Code of Conduct](https://lgbtq.technology/coc.html) and
-the [WisCon code of conduct](http://wiscon.net/policies/anti-harassment/code-of-conduct/)
-.
-
-It was then modified by solonovamax with various inclusions from
-the [LGBTQ in Technology Code of Conduct](https://lgbtq.technology/coc.html) and
-a few other sources.
 
 ## Notes
 
@@ -443,7 +424,6 @@ people are not comfortable
 using [neopronouns](https://www.mypronouns.org/neopronouns). But if someone
 refuses to use your more common pronouns, you should report them to us.
 Additionally, you may not ask people to use unreasonable pronouns, such as '
-acab/acabself', 'that/bitch', 'ur/mom', or
+acab/acabself', 'that/bitch', 'ur/mom', or anything else that may be considered
-'dream/dreamself' (pronouns related to real people, eg. the minecraft youtuber '
+disrectful. Doing so will be considered mockery of individuals who use
-dreamwastaken'). Doing so will be considered mockery of individuals who use
 non-standard pronouns and is very disrespectful.

CONTRIBUTING.md

@@ -63,7 +63,8 @@ to [Terra global moderation team](CODE_OF_CONDUCT.md#Reporting).
 
 ## I don't want to read this whole thing I just have a question!!!
 
-> **Note:** Please don't file an issue to ask a question. You'll get faster results by using the resources below.
+> **Note:** Please don't file an issue to ask a question. You'll get faster
+> results by using the resources below.
 
 We have an official discord server where you can request help from various users
 
@@ -77,9 +78,9 @@ Unsure where to begin contributing to Terra? You can start by looking through "
 beginner" and "help wanted" issues:
 
 - [Beginner issues](https://github.com/PolyhedralDev/Terra/labels/Note%3A%20Good%20First%20Issue)
-  - issues which should be friendly to anyone new to terra.
+    - issues which should be friendly to anyone new to terra.
 - [Help wanted issues](https://github.com/PolyhedralDev/Terra/labels/Note%3A%20Help%20Wanted)
-  - issues which should be a bit more involved than "beginner" issues.
+    - issues which should be a bit more involved than "beginner" issues.
 
 New to github? Working on your first Pull Request? Check
 out [How to Contribute to an Open Source Project on GitHub](https://app.egghead.io/playlists/how-to-contribute-to-an-open-source-project-on-github)
@@ -103,7 +104,9 @@ you don't need to create one. When you are creating a bug report,
 please [include as many details as possible](#how-do-i-submit-a-good-bug-report)
 .
 
-> **Note:** If you find a **Closed** issue that seems like it is the same thing that you're experiencing, open a new issue and include a link to the original issue in the body of your new one.
+> **Note:** If you find a **Closed** issue that seems like it is the same thing
+> that you're experiencing, open a new issue and include a link to the original
+> issue in the body of your new one.
 
 #### Before Submitting A Bug Report
 
@@ -114,9 +117,9 @@ please [include as many details as possible](#how-do-i-submit-a-good-bug-report)
 - Make sure that this is not a *specific* compatibility issue with another
   terrain generation mod. Do not request *specific* compatibility with mods or
   plugins (e.g. "Compatibility with TechCraft v7"). That should be implemented
-  in an addon, **not** in the main project.
+  in an addon, **not** in the platform project.
   *General* compatibility (e.g. "Ability to pull Vanilla/Modded features from
-  parent biomes") will be considered in the main project.
+  parent biomes") will be considered in the platform project.
 - Search for
   any [already existing issues](https://github.com/PolyhedralDev/Terra/issues?q=is%3Aissue+)
   open with your problem. If you open a duplicate, it will be closed as such.
@@ -200,7 +203,7 @@ please [include as many details as possible](#how-do-i-submit-a-good-enhancement
 
 Enhancement suggestions are tracked
 as [GitHub issues](https://guides.github.com/features/issues/). Create an issue
-on our main repository and provide the following information:
+on our platform repository and provide the following information:
 
 - **Use a clear and descriptive title** for the issue to identify the
   suggestion.
@@ -243,7 +246,7 @@ accepted.
 
 Pull Requests are tracked
 as [GitHub Pull Requests](https://guides.github.com/activities/forking/#making-a-pull-request)
-. Create a pr on our main repository and provide the following information:
+. Create a pr on our platform repository and provide the following information:
 
 - **Use a clear and descriptive title** to identify the pull request.
 - **State what this pull request adds/fixes**.
@@ -347,7 +350,7 @@ TODO
 #### General Compatibility
 
 General compatibility (example: injection of Vanilla structures/features/carvers
-into packs) is acceptable in the main project.
+into packs) is acceptable in the platform project.
 
 - General compatibility features should be *disabled by default*. Having things
   auto-injected causes unpredictable behaviour that is annoying to diagnose.
@@ -365,8 +368,9 @@ into packs) is acceptable in the main project.
 
 #### Specific Compatibility
 
-Specific compatibility should *not* be put in the main project. (Example: Adding
+Specific compatibility should *not* be put in the platform project. (Example:
-the ability to generate TechCraft v7's doo-dads with a TerraScript function)
+Adding the ability to generate TechCraft v7's doo-dads with a TerraScript
+function)
 
 Having specific compatibilities leads to tons of extra dependencies to keep
 track of, as well as adding lots of additional stuff to maintain. It quickly

LICENSE

@@ -1,674 +1,21 @@
-                    GNU GENERAL PUBLIC LICENSE
+MIT License
-                       Version 3, 29 June 2007
+
-
+Copyright (c) 2020-2021 Polyhedral Development
- Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+
- Everyone is permitted to copy and distribute verbatim copies
+Permission is hereby granted, free of charge, to any person obtaining a copy
- of this license document, but changing it is not allowed.
+of this software and associated documentation files (the "Software"), to deal
-
+in the Software without restriction, including without limitation the rights
-                            Preamble
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-
+copies of the Software, and to permit persons to whom the Software is
-  The GNU General Public License is a free, copyleft license for
+furnished to do so, subject to the following conditions:
-software and other kinds of works.
+
-
+The above copyright notice and this permission notice shall be included in all
-  The licenses for most software and other practical works are designed
+copies or substantial portions of the Software.
-to take away your freedom to share and change the works.  By contrast,
+
-the GNU General Public License is intended to guarantee your freedom to
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-share and change all versions of a program--to make sure it remains free
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-software for all its users.  We, the Free Software Foundation, use the
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-GNU General Public License for most of our software; it applies also to
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-any other work released this way by its authors.  You can apply it to
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-your programs, too.
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-
+SOFTWARE.
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-them if you wish), that you receive source code or can get it if you
-want it, that you can change the software or use pieces of it in new
-free programs, and that you know you can do these things.
-
-  To protect your rights, we need to prevent others from denying you
-these rights or asking you to surrender the rights.  Therefore, you have
-certain responsibilities if you distribute copies of the software, or if
-you modify it: responsibilities to respect the freedom of others.
-
-  For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must pass on to the recipients the same
-freedoms that you received.  You must make sure that they, too, receive
-or can get the source code.  And you must show them these terms so they
-know their rights.
-
-  Developers that use the GNU GPL protect your rights with two steps:
-(1) assert copyright on the software, and (2) offer you this License
-giving you legal permission to copy, distribute and/or modify it.
-
-  For the developers' and authors' protection, the GPL clearly explains
-that there is no warranty for this free software.  For both users' and
-authors' sake, the GPL requires that modified versions be marked as
-changed, so that their problems will not be attributed erroneously to
-authors of previous versions.
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-
-  Finally, every program is threatened constantly by software patents.
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-patents cannot be used to render the program non-free.
-
-  The precise terms and conditions for copying, distribution and
-modification follow.
-
-                       TERMS AND CONDITIONS
-
-  0. Definitions.
-
-  "This License" refers to version 3 of the GNU General Public License.
-
-  "Copyright" also means copyright-like laws that apply to other kinds of
-works, such as semiconductor masks.
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README.md

@@ -1,15 +1,30 @@
+<img align="left" width="64" height="64" src="https://raw.githubusercontent.com/wiki/PolyhedralDev/Terra/images/terra_logo.png" alt="Terra Logo">
+
 # Terra
 
-Terra is an incredibly powerful free & open-source data-driven,
+Terra is a modern world generation modding platform, primarily for Minecraft.
-platform-agnostic world generator. It allows you to create a world exactly to
+Terra allows complete customization of world generation with an advanced API,
-your specifications, with no knowledge of Java required.
+tightly integrated with a powerful configuration system.
+
+Terra consists of several parts:
+
+* A voxel world generation API with emphasis on configuration and extensibility
+* Several platform implementations, the layer between the API and the platform
+  it's running on.
+* An addon loader, which allows addons to interface with the Terra API in a
+  platform-agnostic setting
+* Several "core addons," which implement the "default" configurations of Terra.
+  These addons can be thought of as the config "standard library"
+
+Terra currently officially supports the Fabric mod loader and the Bukkit API
+(Paper and friends). We welcome Pull Requests implementing additional platforms!
 
 ## Downloads:
 
-* Paper+ servers (Paper, Tuinity, Purpur,
-  etc): [SpigotMC](https://www.spigotmc.org/resources/85151/)
 * Fabric: [Modrinth](https://modrinth.com/mod/terra)
   / [CurseForge](https://www.curseforge.com/minecraft/mc-mods/terra-world-generator)
+* Paper+ servers (Paper, Tuinity, Purpur,
+  etc): [SpigotMC](https://www.spigotmc.org/resources/85151/)
 
 ## Building and Running Terra
 
@@ -32,19 +47,11 @@ JARs are produced in `platforms/<platform>/build/libs`.
 To run Minecraft with Terra in the IDE (for testing) use the following tasks:
 
 * Bukkit
-    * `installPaper` - Install a [Paper](https://github.com/PaperMC/Paper) test
+    * `runServer` - Run the Paper test server with Terra installed.
-      server. (Only needs to be run once).
-    * `installPurpur` - Install a [Purpur](https://github.com/pl3xgaming/Purpur)
-      test server. (Only needs to be run once).
-    * `runPaper` - Run the Paper test server with Terra (`installPaper` must
-      have been run previously).
-    * `runPurpur` - Run the Purpur test server with Terra (`installPurpur` must
-      have been run previously).
 * Fabric
     * `runClient` - Run a Minecraft Fabric client with Terra installed.
     * `runServer` - Run a Minecraft Fabric server with Terra installed.
 
-
 ## Contributing
 
 Contributions are welcome! If you want to see a feature in Terra, please, open
@@ -52,7 +59,43 @@ an issue, or implement it yourself and submit a PR!
 Join the discord [here](https://discord.gg/PXUEbbF) if you would like to talk
 more about the project!
 
+## Licensing
+
+Parts of Terra are licensed under either the MIT License or the GNU General
+Public License, version 3.0.
+
+* Our API is licensed under the [MIT License](LICENSE), to ensure that everyone
+  is able to freely use it however they want.
+* Our core addons are also licensed under the [MIT License](LICENSE), to ensure
+  that people can freely use code from them to learn and make their own addons,
+  without worrying about GPL infection.
+* Our platform-agnostic implementations and platform implementations are
+  licensed under
+  the [GNU General Public License, version 3.0](common/implementation/LICENSE),
+  to ensure that they remain free software wherever they are used.
+
+If you're not sure which license a particular file is under, check:
+
+* The file's header
+* The LICENSE file in the closest parent folder of the file in question
+
 ## Beta
 
 Terra is still in beta! While it is stable, it is not feature-complete. There is
 a lot to be added!
+
+## Special Thanks
+
+[![YourKit-Logo](https://www.yourkit.com/images/yklogo.png)](https://www.yourkit.com/)
+
+YourKit has granted Polyhedral Development an open-source license to their
+outstanding Java profiler, allowing us to make our software as performant as it
+can be!
+
+YourKit supports open source projects with innovative and intelligent tools for
+monitoring and profiling Java and .NET applications. YourKit is the creator of
+the
+[YourKit Java Profiler](https://www.yourkit.com/java/profiler/),
+[YourKit .NET Profiler](https://www.yourkit.com/.net/profiler/),
+and [YourKit YouMonitor](https://www.yourkit.com/youmonitor/).
+

build.gradle.kts

@@ -1,17 +1,15 @@
-import com.dfsek.terra.configureCompilation
+preRelease(true)
-import com.dfsek.terra.configureDependencies
+
-import com.dfsek.terra.configureDistribution
+versionProjects(":common:api", version("6.4.0"))
-import com.dfsek.terra.configurePublishing
+versionProjects(":common:implementation", version("6.4.0"))
-import com.dfsek.terra.getGitHash
+versionProjects(":platforms", version("6.4.0"))
 
-val versionObj = Version("6", "0", "0", true)
 
 allprojects {
-    version = versionObj
     group = "com.dfsek.terra"
     
-    configureDependencies()
     configureCompilation()
+    configureDependencies()
     configurePublishing()
     
     tasks.withType<JavaCompile>().configureEach {
@@ -30,24 +28,31 @@ allprojects {
         reports.html.required.set(false)
         reports.junitXml.required.set(false)
     }
+    
+    tasks.withType<Copy>().configureEach {
+        duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+    }
+    
+    tasks.withType<Jar>().configureEach {
+        duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+    }
 }
 
 afterEvaluate {
-    project(":platforms").subprojects.forEach { // Platform projects are where distribution happens
+    forImmediateSubProjects(":platforms") {
-        it.configureDistribution()
+        configureDistribution()
-    }
+    }
-}
+    project(":platforms:bukkit:common").configureDistribution()
-
+    forSubProjects(":common:addons") {
-/**
+        apply(plugin = "com.github.johnrengelman.shadow")
- * Version class that does version stuff.
+        
- */
+        tasks.named("build") {
-@Suppress("MemberVisibilityCanBePrivate")
+            finalizedBy(tasks.named("shadowJar"))
-class Version(val major: String, val minor: String, val revision: String, val preRelease: Boolean = false) {
+        }
-    
+        
-    override fun toString(): String {
+        dependencies {
-        return if (!preRelease)
+            "compileOnly"(project(":common:api"))
-            "$major.$minor.$revision"
+            "testImplementation"(project(":common:api"))
-        else //Only use git hash if it's a prerelease.
+        }
-            "$major.$minor.$revision-BETA+${getGitHash()}"
     }
 }

buildSrc/build.gradle.kts

@@ -6,9 +6,21 @@ plugins {
 repositories {
     mavenCentral()
     gradlePluginPortal()
+    maven("https://repo.codemc.org/repository/maven-public") {
+        name = "CodeMC"
+    }
+    maven("https://papermc.io/repo/repository/maven-public/") {
+        name = "PaperMC"
+    }
 }
 
 dependencies {
-    "implementation"("com.github.jengelman.gradle.plugins:shadow:+")
+    //TODO Allow pulling from Versions.kt
-    "implementation"("org.yaml:snakeyaml:1.27")
+    implementation("com.github.johnrengelman", "shadow", "8.1.1")
+    implementation("io.papermc.paperweight.userdev", "io.papermc.paperweight.userdev.gradle.plugin","1.5.6")
+    
+    implementation("org.ow2.asm", "asm", "9.5")
+    implementation("org.ow2.asm", "asm-tree", "9.5")
+    implementation("com.dfsek.tectonic", "common", "4.2.0")
+    implementation("org.yaml", "snakeyaml", "2.2")
 }

buildSrc/src/main/kotlin/AddonConfig.kt

@@ -0,0 +1,47 @@
+import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+import java.io.File
+import java.util.function.Predicate
+import org.gradle.api.Project
+import org.gradle.api.Task
+import org.gradle.kotlin.dsl.extra
+import kotlin.streams.asStream
+
+
+/**
+ * Configures a directory where addons will be put.
+ */
+fun Project.addonDir(dir: File, task: Task) {
+    val moveAddons = tasks.register("moveAddons" + task.name) {
+        dependsOn("compileAddons")
+        doLast {
+            dir.parentFile.mkdirs()
+            matchingAddons(dir) {
+                it.name.startsWith("Terra-") // Assume everything that starts with Terra- is a core addon.
+            }.forEach {
+                println("Deleting old addon: " + it.absolutePath)
+                it.delete()
+            }
+            forSubProjects(":common:addons") {
+                val jar = tasks.named("shadowJar").get() as ShadowJar
+                
+                val boot = if (extra.has("bootstrap") && extra.get("bootstrap") as Boolean) "bootstrap/" else ""
+                val target = File(dir, boot + jar.archiveFileName.get())
+                
+                val base = "${jar.archiveBaseName.get()}-${version}"
+                
+                println("Copying addon ${jar.archiveFileName.get()} to ${target.absolutePath}. Base name: $base")
+                
+                jar.archiveFile.orNull?.asFile?.copyTo(target)
+            }
+        }
+        
+    }
+    
+    task.dependsOn(moveAddons)
+}
+
+fun matchingAddons(dir: File, matcher: Predicate<File>): Set<File> {
+    val matching = HashSet<File>()
+    dir.walk().asStream().filter(matcher).forEach(matching::add)
+    return matching
+}

buildSrc/src/main/kotlin/CompilationConfig.kt

@@ -1,5 +1,5 @@
-package com.dfsek.terra
+import com.dfsek.terra.tectonicdoc.TectonicDocPlugin
-
+import org.apache.tools.ant.filters.ReplaceTokens
 import org.gradle.api.JavaVersion
 import org.gradle.api.Project
 import org.gradle.api.plugins.JavaPluginExtension
@@ -19,10 +19,11 @@ fun Project.configureCompilation() {
     apply(plugin = "java")
     apply(plugin = "java-library")
     apply(plugin = "idea")
+    apply<TectonicDocPlugin>()
     
     configure<JavaPluginExtension> {
-        sourceCompatibility = JavaVersion.VERSION_16
+        sourceCompatibility = JavaVersion.VERSION_17
-        targetCompatibility = JavaVersion.VERSION_16
+        targetCompatibility = JavaVersion.VERSION_17
     }
     
     tasks.withType<JavaCompile> {
@@ -34,16 +35,26 @@ fun Project.configureCompilation() {
     
     tasks.withType<ProcessResources> {
         include("**/*.*")
-        filter<org.apache.tools.ant.filters.ReplaceTokens>(
+        filter<ReplaceTokens>(
             "tokens" to mapOf(
-                "VERSION" to project.version.toString(),
+                "DESCRIPTION" to properties["terra.description"],
-                "DESCRIPTION" to project.properties["terra.description"],
+                "WIKI" to properties["terra.wiki"],
-                "WIKI" to project.properties["terra.wiki"],
+                "SOURCE" to properties["terra.source"],
-                "SOURCE" to project.properties["terra.source"],
+                "ISSUES" to properties["terra.issues"],
-                "ISSUES" to project.properties["terra.issues"],
+                "LICENSE" to properties["terra.license"]
-                "LICENSE" to project.properties["terra.license"]
                              )
-                                                          )
+                             )
+    }
+    
+    afterEvaluate {
+        tasks.withType<ProcessResources> {
+            include("**/*.*")
+            filter<ReplaceTokens>(
+                "tokens" to mapOf(
+                    "VERSION" to version.toString()
+                                 )
+                                 )
+        }
     }
     
     tasks.withType<Javadoc> {

buildSrc/src/main/kotlin/DependencyConfig.kt

@@ -0,0 +1,64 @@
+import org.gradle.api.Project
+import org.gradle.kotlin.dsl.creating
+import org.gradle.kotlin.dsl.dependencies
+import org.gradle.kotlin.dsl.getValue
+import org.gradle.kotlin.dsl.getting
+import org.gradle.kotlin.dsl.maven
+import org.gradle.kotlin.dsl.repositories
+
+fun Project.configureDependencies() {
+    val testImplementation by configurations.getting
+    val compileOnly by configurations.getting
+    
+    val api by configurations.getting
+    val implementation by configurations.getting
+    
+    val shaded by configurations.creating
+    
+    @Suppress("UNUSED_VARIABLE")
+    val shadedApi by configurations.creating {
+        shaded.extendsFrom(this)
+        api.extendsFrom(this)
+    }
+    
+    @Suppress("UNUSED_VARIABLE")
+    val shadedImplementation by configurations.creating {
+        shaded.extendsFrom(this)
+        implementation.extendsFrom(this)
+    }
+    
+    repositories {
+        mavenCentral()
+        gradlePluginPortal()
+        maven("https://maven.fabricmc.net/") {
+            name = "FabricMC"
+        }
+        maven("https://repo.codemc.org/repository/maven-public") {
+            name = "CodeMC"
+        }
+        maven("https://papermc.io/repo/repository/maven-public/") {
+            name = "PaperMC"
+        }
+        maven("https://files.minecraftforge.net/maven/") {
+            name = "Forge"
+        }
+        maven("https://maven.quiltmc.org/repository/release/") {
+            name = "Quilt"
+        }
+        maven("https://jitpack.io") {
+            name = "JitPack"
+        }
+        maven("https://nexuslite.gcnt.net/repos/other/") {
+            name = "GCNT"
+        }
+    }
+    
+    dependencies {
+        testImplementation("org.junit.jupiter:junit-jupiter-api:5.7.0")
+        testImplementation("org.junit.jupiter:junit-jupiter-engine:5.7.0")
+        compileOnly("org.jetbrains:annotations:23.0.0")
+        
+        compileOnly("com.google.guava:guava:30.0-jre")
+        testImplementation("com.google.guava:guava:30.0-jre")
+    }
+}

buildSrc/src/main/kotlin/DistributionConfig.kt

@@ -1,24 +1,24 @@
-package com.dfsek.terra
-
 import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
 import java.io.File
-import java.io.FileInputStream
-import java.io.FileOutputStream
 import java.io.FileWriter
+import java.net.URI
 import java.net.URL
-import java.util.zip.ZipEntry
+import java.nio.file.FileSystems
-import java.util.zip.ZipOutputStream
+import java.nio.file.Files
+import java.nio.file.StandardCopyOption
 import org.gradle.api.DefaultTask
 import org.gradle.api.Project
 import org.gradle.api.plugins.BasePluginExtension
-import org.gradle.jvm.tasks.Jar
+import org.gradle.kotlin.dsl.TaskContainerScope
 import org.gradle.kotlin.dsl.apply
 import org.gradle.kotlin.dsl.configure
+import org.gradle.kotlin.dsl.extra
 import org.gradle.kotlin.dsl.get
 import org.gradle.kotlin.dsl.named
 import org.yaml.snakeyaml.DumperOptions
 import org.yaml.snakeyaml.Yaml
 
+
 fun Project.configureDistribution() {
     apply(plugin = "com.github.johnrengelman.shadow")
     
@@ -26,53 +26,50 @@ fun Project.configureDistribution() {
         group = "terra"
         doFirst {
             file("${buildDir}/resources/main/packs/").deleteRecursively()
-            
+            val defaultPackUrl = URL("https://github.com/PolyhedralDev/TerraOverworldConfig/releases/download/latest/default.zip")
-            val defaultPackUrl = URL("https://github.com/PolyhedralDev/TerraDefaultConfig/releases/download/latest/default.zip")
             downloadPack(defaultPackUrl, project)
-            val netherPackUrl = URL("https://github.com/PolyhedralDev/TerraDefaultConfig/releases/download/latest/nether.zip")
+        }
-            downloadPack(netherPackUrl, project)
+    }
+    
+    val compileAddons = tasks.create("compileAddons") {
+        forSubProjects(":common:addons") {
+            afterEvaluate {
+                dependsOn(getJarTask())
+            }
         }
     }
     
     val installAddons = tasks.create("installAddons") {
         group = "terra"
-        project(":common:addons").subprojects.forEach {
+        dependsOn(compileAddons)
-            it.afterEvaluate {
-                dependsOn(it.tasks.getByName("build")) // Depend on addon JARs
-            }
-        }
         
-        doFirst {
+        doLast {
-            // The addons are copied into a JAR because of a ShadowJar bug
-            // which expands *all* JARs, even resource ones, into the fat JAR.
-            // To get around this, we copy all addon JARs into a *new* JAR,
-            // then, ShadowJar expands the newly created JAR, putting the original
-            // JARs where they should go.
-            //
             // https://github.com/johnrengelman/shadow/issues/111
-            val dest = File(buildDir, "/resources/main/addons.jar")
+            val dest = URI.create("jar:" + tasks.named<ShadowJar>("shadowJar").get().archiveFile.get().asFile.toURI())
-            dest.parentFile.mkdirs()
             
-            val zip = ZipOutputStream(FileOutputStream(dest))
+            FileSystems.newFileSystem(dest, mapOf("create" to "false"), null).use { fs ->
-            
+                forSubProjects(":common:addons") {
-            project(":common:addons").subprojects.forEach { addonProject ->
+                    val jar = getJarTask()
-                val jar = (addonProject.tasks.named("jar").get() as Jar)
+                    
-                println("Packaging addon ${jar.archiveFileName.get()} to ${dest.absolutePath}.")
+                    println("Packaging addon ${jar.archiveFileName.get()} to $dest. size: ${jar.archiveFile.get().asFile.length() / 1024}KB")
-                
+                    
-                val entry = ZipEntry("addons/${jar.archiveFileName.get()}")
+                    val boot = if (extra.has("bootstrap") && extra.get("bootstrap") as Boolean) "bootstrap/" else ""
-                zip.putNextEntry(entry)
+                    val addonPath = fs.getPath("/addons/$boot${jar.archiveFileName.get()}")
-                FileInputStream(jar.archiveFile.get().asFile).copyTo(zip)
+                    
-                zip.closeEntry()
+                    if (!Files.exists(addonPath)) {
+                        Files.createDirectories(addonPath.parent)
+                        Files.createFile(addonPath)
+                        Files.copy(jar.archiveFile.get().asFile.toPath(), addonPath, StandardCopyOption.REPLACE_EXISTING)
+                    }
+                    
+                }
             }
-            zip.close()
         }
     }
     
     val generateResourceManifest = tasks.create("generateResourceManifest") {
         group = "terra"
-        dependsOn(downloadDefaultPacks)
+        doLast {
-        dependsOn(installAddons)
-        doFirst {
             val resources = HashMap<String, MutableList<String>>()
             val packsDir = File("${project.buildDir}/resources/main/packs/")
             
@@ -88,9 +85,11 @@ fun Project.configureDistribution() {
                 resources.computeIfAbsent("lang") { ArrayList() }.add(it.name)
             }
             
-            project(":common:addons").subprojects.forEach { addonProject ->
+            forSubProjects(":common:addons") {
-                val jar = (addonProject.tasks.named("jar").get() as Jar).archiveFileName.get()
+                val jar = getJarTask().archiveFileName.get()
-                resources.computeIfAbsent("addons") { ArrayList() }.add(jar)
+                resources.computeIfAbsent(
+                    if (extra.has("bootstrap") && extra.get("bootstrap") as Boolean) "addons/bootstrap"
+                    else "addons") { ArrayList() }.add(jar)
             }
             
             val options = DumperOptions()
@@ -106,25 +105,35 @@ fun Project.configureDistribution() {
             val manifest = File("${project.buildDir}/resources/main/resources.yml")
             
             if (manifest.exists()) manifest.delete()
+            manifest.parentFile.mkdirs()
             manifest.createNewFile()
-            yaml.dump(resources, FileWriter(manifest))
+            FileWriter(manifest).use {
+                yaml.dump(resources, it)
+            }
+
         }
     }
     
-    tasks["processResources"].dependsOn(generateResourceManifest)
+    tasks.named("processResources") {
+        generateResourceManifest.mustRunAfter(downloadDefaultPacks)
+        finalizedBy(downloadDefaultPacks)
+        finalizedBy(generateResourceManifest)
+    }
+    
     
     tasks.named<ShadowJar>("shadowJar") {
         // Tell shadow to download the packs
         dependsOn(downloadDefaultPacks)
-        
         configurations = listOf(project.configurations["shaded"])
-        
         archiveClassifier.set("shaded")
         setVersion(project.version)
         relocate("org.apache.commons", "com.dfsek.terra.lib.commons")
         relocate("org.objectweb.asm", "com.dfsek.terra.lib.asm")
+        relocate("com.dfsek.paralithic", "com.dfsek.terra.lib.paralithic")
         relocate("org.json", "com.dfsek.terra.lib.json")
         relocate("org.yaml", "com.dfsek.terra.lib.yaml")
+        
+        finalizedBy(installAddons)
     }
     
     configure<BasePluginExtension> {
@@ -141,4 +150,6 @@ fun downloadPack(packUrl: URL, project: Project) {
     val file = File("${project.buildDir}/resources/main/packs/${fileName}")
     file.parentFile.mkdirs()
     file.outputStream().write(packUrl.readBytes())
-}
+}
+
+fun Project.getJarTask() = tasks.named("shadowJar").get() as ShadowJar

buildSrc/src/main/kotlin/PublishingConfig.kt

@@ -1,5 +1,3 @@
-package com.dfsek.terra
-
 import org.gradle.api.Project
 import org.gradle.api.publish.PublishingExtension
 import org.gradle.api.publish.maven.MavenPublication
@@ -13,8 +11,7 @@ fun Project.configurePublishing() {
     configure<PublishingExtension> {
         publications {
             create<MavenPublication>("mavenJava") {
-                artifact(tasks["sourcesJar"])
+                from(components["java"])
-                artifact(tasks["jar"])
             }
         }
         

buildSrc/src/main/kotlin/Utils.kt

@@ -0,0 +1,56 @@
+import java.io.ByteArrayOutputStream
+import org.gradle.api.Action
+import org.gradle.api.Project
+
+
+var isPrerelease = false
+
+
+fun Project.getGitHash(): String {
+    val stdout = ByteArrayOutputStream()
+    exec {
+        commandLine = mutableListOf("git", "rev-parse", "--short", "HEAD")
+        standardOutput = stdout
+    }
+    return stdout.toString().trim()
+}
+
+fun Project.gitClone(name: String) {
+    val stdout = ByteArrayOutputStream()
+    exec {
+        commandLine = mutableListOf("git", "clone", name)
+        standardOutput = stdout
+    }
+}
+
+fun Project.forSubProjects(project: String, action: Action<Project>) {
+    project(project).subprojects.forEach {
+        action.execute(it)
+    }
+}
+
+fun Project.forImmediateSubProjects(project: String, action: Action<Project>) {
+    project(project).childProjects.forEach {
+        action.execute(it.value)
+    }
+}
+
+fun preRelease(preRelease: Boolean) {
+    isPrerelease = preRelease
+}
+
+fun Project.versionProjects(project: String, version: String) {
+    forSubProjects(project) {
+        this.version = version
+        println("Setting version of $path to $version")
+    }
+    project(project).version = version
+    println("Setting version of $project to $version")
+}
+
+fun Project.version(version: String): String {
+    return if (!isPrerelease)
+        version
+    else //Only use git hash if it's a prerelease.
+        "$version-BETA+${getGitHash()}"
+}

buildSrc/src/main/kotlin/Versions.kt

@@ -0,0 +1,71 @@
+object Versions {
+    object Libraries {
+        const val tectonic = "4.2.1"
+        const val paralithic = "0.7.1"
+        const val strata = "1.3.2"
+        
+        const val cloud = "1.8.4"
+        
+        const val slf4j = "2.0.9"
+        const val log4j_slf4j_impl = "2.20.0"
+        
+        object Internal {
+            const val shadow = "8.1.1"
+            const val apacheText = "1.10.0"
+            const val jafama = "2.3.2"
+            const val apacheIO = "2.14.0"
+            const val guava = "32.1.3-jre"
+            const val asm = "9.5"
+            const val snakeYml = "2.2"
+        }
+    }
+    
+    object Fabric {
+        const val fabricAPI = "0.90.0+${Mod.minecraft}"
+    }
+//
+//    object Quilt {
+//        const val quiltLoader = "0.20.2"
+//        const val fabricApi = "7.3.1+0.89.3-1.20.1"
+//    }
+    
+    object Mod {
+        const val mixin = "0.12.5+mixin.0.8.5"
+        
+        const val minecraft = "1.20.2"
+        const val yarn = "$minecraft+build.4"
+        const val fabricLoader = "0.14.23"
+        
+        const val architecuryLoom = "1.3.357"
+        const val architecturyPlugin = "3.4.146"
+        
+        const val loomVineflower = "1.11.0"
+    }
+    
+    object Forge {
+        const val forge = "${Mod.minecraft}-48.0.13"
+        const val burningwave = "12.63.0"
+    }
+    
+    object Bukkit {
+        const val paper = "1.18.2-R0.1-SNAPSHOT"
+        const val paperLib = "1.0.5"
+        const val foliaLib = "0.2.5"
+        const val minecraft = "1.20.2"
+        const val reflectionRemapper = "0.1.0-SNAPSHOT"
+        const val paperDevBundle = "1.20.2-R0.1-SNAPSHOT"
+        const val runPaper = "2.2.0"
+        const val paperWeight = "1.5.6"
+    }
+//
+//    object Sponge {
+//        const val sponge = "9.0.0-SNAPSHOT"
+//        const val mixin = "0.8.2"
+//        const val minecraft = "1.17.1"
+//    }
+//
+    object CLI {
+        const val nbt = "6.1"
+        const val logback = "1.4.11"
+    }
+}

buildSrc/src/main/kotlin/com/dfsek/terra/AddonConfig.kt

@@ -1,41 +0,0 @@
-package com.dfsek.terra
-
-import java.io.File
-import java.util.function.Predicate
-import org.gradle.api.Project
-import org.gradle.api.Task
-import org.gradle.jvm.tasks.Jar
-import kotlin.streams.asStream
-
-
-/**
- * Configures a directory where addons will be put.
- */
-fun Project.addonDir(dir: File, task: Task) {
-    task.doFirst {
-        dir.parentFile.mkdirs()
-        matchingAddons(dir) {
-            it.name.startsWith("Terra-") // Assume everything that starts with Terra- is a core addon.
-        }.forEach {
-            println("Deleting old addon: " + it.absolutePath)
-            it.delete()
-        }
-        project(":common:addons").subprojects.forEach { addonProject ->
-            val jar = (addonProject.tasks.named("jar").get() as Jar)
-            
-            val target = File(dir, jar.archiveFileName.get())
-            
-            val base = "${jar.archiveBaseName.get()}-${project.version}"
-            
-            println("Copying addon ${jar.archiveFileName.get()} to ${target.absolutePath}. Base name: $base")
-            
-            jar.archiveFile.orNull?.asFile?.copyTo(target)
-        }
-    }
-}
-
-fun matchingAddons(dir: File, matcher: Predicate<File>): Set<File> {
-    val matching = HashSet<File>()
-    dir.walk().maxDepth(1).asStream().filter(matcher).forEach(matching::add)
-    return matching
-}

buildSrc/src/main/kotlin/com/dfsek/terra/CommonConfig.kt

@@ -1,21 +0,0 @@
-package com.dfsek.terra
-
-import java.io.ByteArrayOutputStream
-import org.gradle.api.Project
-
-fun Project.getGitHash(): String {
-    val stdout = ByteArrayOutputStream()
-    exec {
-        commandLine = mutableListOf("git", "rev-parse", "--short", "HEAD")
-        standardOutput = stdout
-    }
-    return stdout.toString().trim()
-}
-
-fun Project.gitClone(name: String) {
-    val stdout = ByteArrayOutputStream()
-    exec {
-        commandLine = mutableListOf("git", "clone", name)
-        standardOutput = stdout
-    }
-}

buildSrc/src/main/kotlin/com/dfsek/terra/DependencyConfig.kt

@@ -1,48 +0,0 @@
-package com.dfsek.terra
-
-import org.gradle.api.Project
-import org.gradle.kotlin.dsl.apply
-import org.gradle.kotlin.dsl.dependencies
-import org.gradle.kotlin.dsl.invoke
-import org.gradle.kotlin.dsl.project
-import org.gradle.kotlin.dsl.repositories
-
-fun Project.configureDependencies() {
-    apply(plugin = "java")
-    apply(plugin = "java-library")
-    
-    configurations {
-        val shaded = create("shaded")
-        val shadedApi = create("shadedApi")
-        shaded.extendsFrom(shadedApi)
-        getByName("api").extendsFrom(shadedApi)
-        val shadedImplementation = create("shadedImplementation")
-        shaded.extendsFrom(shadedImplementation)
-        getByName("implementation").extendsFrom(shadedImplementation)
-    }
-    
-    repositories {
-        maven { url = uri("https://maven.enginehub.org/repo/") }
-        maven { url = uri("https://repo.codemc.org/repository/maven-public") }
-        maven { url = uri("https://papermc.io/repo/repository/maven-public/") }
-        maven { url = uri("https://maven.fabricmc.net/") }
-        gradlePluginPortal()
-        mavenCentral()
-    }
-    
-    dependencies {
-        "testImplementation"("org.junit.jupiter:junit-jupiter-api:5.7.0")
-        "testImplementation"("org.junit.jupiter:junit-jupiter-engine:5.7.0")
-        "compileOnly"("org.jetbrains:annotations:20.1.0")
-        
-        "compileOnly"("com.google.guava:guava:30.0-jre")
-        "testImplementation"("com.google.guava:guava:30.0-jre")
-    }
-    
-    if (project(":common:addons").subprojects.contains(this)) { // If this is an addon project, depend on the API.
-        dependencies {
-            "compileOnly"(project(":common:api"))
-            "testImplementation"(project(":common:api"))
-        }
-    }
-}

buildSrc/src/main/kotlin/com/dfsek/terra/tectonicdoc/DocumentedTemplate.kt

@@ -0,0 +1,20 @@
+package com.dfsek.terra.tectonicdoc
+
+class DocumentedTemplate(private val name: String) {
+    private val template = HashMap<String, String>()
+    
+    fun add(name: String, content: String) {
+        template[name] = content
+    }
+    
+    fun format(): String {
+        val builder = StringBuilder("# ").append(name).append("\n\n")
+        template.forEach { name, content ->
+            builder
+                .append("### $name\n\n")
+                .append(content)
+                .append("\n\n")
+        }
+        return builder.toString()
+    }
+}

buildSrc/src/main/kotlin/com/dfsek/terra/tectonicdoc/GenerateDocsTask.kt

@@ -0,0 +1,150 @@
+package com.dfsek.terra.tectonicdoc
+
+import com.dfsek.tectonic.api.config.template.annotations.Description
+import com.dfsek.tectonic.api.config.template.annotations.Final
+import com.dfsek.tectonic.api.config.template.annotations.Value
+import java.io.File
+import java.io.FileInputStream
+import java.io.InputStream
+import org.gradle.api.DefaultTask
+import org.gradle.api.plugins.JavaPluginExtension
+import org.gradle.api.tasks.TaskAction
+import org.objectweb.asm.ClassReader
+import org.objectweb.asm.tree.ClassNode
+import org.objectweb.asm.tree.FieldNode
+
+
+abstract class GenerateDocsTask : DefaultTask() {
+    @TaskAction
+    fun generateDocs() {
+        project.extensions.getByType(JavaPluginExtension::class.java).sourceSets.forEach { sources ->
+            val classes = HashMap<String, ClassNode>()
+            sources.java.classesDirectory.get().asFileTree.forEach { file ->
+                if (file.name.endsWith(".class")) {
+                    val node = createClassNode(FileInputStream(file))
+                    if (node.fields.stream().anyMatch { field ->
+                            field.visibleAnnotations?.stream()?.anyMatch {
+                                it.desc.equals(descriptor(Value::class.java.canonicalName))
+                            } == true
+                        }) {
+                        var name = sources
+                            .java
+                            .classesDirectory
+                            .get()
+                            .asFile
+                            .toPath()
+                            .relativize(file.toPath())
+                            .toString()
+                            .substringBeforeLast('.')
+                        if (name.endsWith("Template")) {
+                            name = name.substringBeforeLast("Template")
+                        }
+                        classes[name] = node
+                    }
+                }
+            }
+            
+            val docsDir = File(project.buildDir, "tectonic")
+            docsDir.mkdirs()
+            
+            classes.forEach { (name, clazz) ->
+                val template = DocumentedTemplate(name.substringAfterLast('/'))
+                clazz.fields
+                    .stream()
+                    .filter { field ->
+                        field.visibleAnnotations?.stream()?.anyMatch {
+                            it.desc.equals(descriptor(Value::class.java.canonicalName))
+                        } == true
+                    }.forEach { field ->
+                        val annotations = field.visibleAnnotations
+                        
+                        val description = StringBuilder()
+                        
+                        annotations.stream().filter {
+                            it.desc.equals(descriptor(Description::class.java.canonicalName))
+                        }.forEach {
+                            description.append(it.values[1])
+                        }
+                        
+                        val keyName = StringBuilder()
+                        
+                        if (annotations.stream().anyMatch { it.desc.equals(descriptor(Final::class.java.canonicalName)) }) {
+                            keyName.append("final ")
+                        }
+                        
+                        keyName.append(getType(field))
+                            .append(" ")
+                        
+                        annotations.stream().filter {
+                            it.desc.equals(descriptor(Value::class.java.canonicalName))
+                        }.forEach {
+                            keyName.append(it.values[1])
+                        }
+                        
+                        template.add(keyName.toString(), description.toString().ifBlank {
+                            println("No description provided for field " + field.name + " in class " + name)
+                            "*No description provided.*"
+                        })
+                    }
+                
+                
+                val save = File(docsDir, "$name.md")
+                if (save.exists()) save.delete()
+                save.parentFile.mkdirs()
+                save.createNewFile()
+                save.writeText(template.format())
+            }
+        }
+    }
+    
+    private fun getType(node: FieldNode): String {
+        if (node.signature != null) {
+            return generic(node.signature)
+        }
+        return descriptorToHumanReadable(node.desc).substringAfterLast('.')
+    }
+    
+    private fun generic(type: String): String {
+        val clean = descriptorToHumanReadable(type)
+        
+        if (clean.contains('<')) {
+            val typeIndex = clean.indexOf('<')
+            return clean.substring(0, typeIndex + 1).substringAfterLast('.') + generic(clean.substring(typeIndex + 1)) + "\\>"
+        }
+        
+        return clean.substringAfterLast('.')
+    }
+    
+    private fun createClassNode(input: InputStream): ClassNode {
+        val reader = ClassReader(input)
+        val node = ClassNode()
+        try {
+            reader.accept(node, ClassReader.EXPAND_FRAMES)
+        } catch (e: Exception) {
+            reader.accept(node, ClassReader.SKIP_FRAMES or ClassReader.SKIP_DEBUG)
+        }
+        return node
+    }
+    
+    private fun descriptorToHumanReadable(descriptor: String): String {
+        if (descriptor.startsWith('L')) {
+            return descriptor.substring(1).substringBeforeLast(';').replace('/', '.')
+        }
+        if (descriptor.startsWith("[")) {
+            return "${descriptorToHumanReadable(descriptor.substring(1))}[]"
+        }
+        return when (descriptor) {
+            "B"  -> "byte"
+            "C"  -> "char"
+            "I"  -> "int"
+            "D"  -> "double"
+            "F"  -> "float"
+            "J"  -> "long"
+            "S"  -> "short"
+            "Z"  -> "boolean"
+            else -> descriptor
+        }
+    }
+    
+    private fun descriptor(name: String): String = "L${name.replace('.', '/')};"
+}

buildSrc/src/main/kotlin/com/dfsek/terra/tectonicdoc/TectonicDocPlugin.kt

@@ -0,0 +1,10 @@
+package com.dfsek.terra.tectonicdoc
+
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+
+class TectonicDocPlugin : Plugin<Project> {
+    override fun apply(project: Project) {
+        project.tasks.create("generateDocs", GenerateDocsTask::class.java)
+    }
+}

common/addons/api-addon-loader/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020-2021 Polyhedral Development
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

common/addons/api-addon-loader/README.md

@@ -0,0 +1,3 @@
+# api addon loader
+
+Loads dependencies as addons

common/addons/api-addon-loader/build.gradle.kts

@@ -0,0 +1,12 @@
+version = version("0.1.0")
+
+dependencies {
+}
+
+tasks.withType<Jar> {
+    manifest {
+        attributes("Terra-Bootstrap-Addon-Entry-Point" to "com.dfsek.terra.addon.loader.ApiAddonLoader")
+    }
+}
+
+project.extra.set("bootstrap", true)

common/addons/api-addon-loader/src/main/java/com/dfsek/terra/addon/loader/ApiAddon.java

@@ -0,0 +1,26 @@
+package com.dfsek.terra.addon.loader;
+
+import ca.solostudios.strata.version.Version;
+
+import com.dfsek.terra.api.addon.BaseAddon;
+
+
+public class ApiAddon implements BaseAddon {
+    private final Version version;
+    private final String id;
+    
+    public ApiAddon(Version version, String id) {
+        this.version = version;
+        this.id = id;
+    }
+    
+    @Override
+    public Version getVersion() {
+        return version;
+    }
+    
+    @Override
+    public String getID() {
+        return id;
+    }
+}

common/addons/api-addon-loader/src/main/java/com/dfsek/terra/addon/loader/ApiAddonClassLoader.java

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addon.loader;
+
+import java.net.URL;
+import java.net.URLClassLoader;
+
+
+public class ApiAddonClassLoader extends URLClassLoader {
+    static {
+        ClassLoader.registerAsParallelCapable();
+    }
+    
+    public ApiAddonClassLoader(URL[] urls, ClassLoader parent) {
+        super(urls, parent);
+    }
+}

common/addons/api-addon-loader/src/main/java/com/dfsek/terra/addon/loader/ApiAddonLoader.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addon.loader;
+
+import ca.solostudios.strata.Versions;
+import ca.solostudios.strata.version.Version;
+
+import java.nio.file.Path;
+import java.util.Collections;
+
+import com.dfsek.terra.api.addon.BaseAddon;
+import com.dfsek.terra.api.addon.bootstrap.BootstrapAddonClassLoader;
+import com.dfsek.terra.api.addon.bootstrap.BootstrapBaseAddon;
+
+
+public class ApiAddonLoader implements BootstrapBaseAddon<BaseAddon> {
+    private static final Version VERSION = Versions.getVersion(1, 0, 0);
+    
+    @Override
+    public Iterable<BaseAddon> loadAddons(Path addonsFolder, BootstrapAddonClassLoader parent) {
+        
+        return Collections.emptySet();
+    }
+    
+    @Override
+    public String getID() {
+        return "API";
+    }
+    
+    @Override
+    public Version getVersion() {
+        return VERSION;
+    }
+}

common/addons/api-features/README.md

@@ -1,10 +0,0 @@
-# api-features
-
-Contains the API for feature generation.
-
-This API implemented in:
-
-* `config-feature`
-* `generation-stage-feature`
-* `config-locators`
-* `config-distributors`

common/addons/api-features/build.gradle.kts

@@ -1,2 +0,0 @@
-dependencies {
-}

common/addons/biome-provider-extrusion/build.gradle.kts

@@ -0,0 +1,6 @@
+version = version("1.0.0")
+
+dependencies {
+    compileOnlyApi(project(":common:addons:manifest-addon-loader"))
+    compileOnlyApi(project(":common:addons:biome-query-api"))
+}

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/BaseBiomeColumn.java

@@ -0,0 +1,51 @@
+package com.dfsek.terra.addons.biome.extrusion;
+
+import com.dfsek.terra.api.util.Column;
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+class BaseBiomeColumn implements Column<Biome> {
+    private final BiomeExtrusionProvider biomeProvider;
+    private final Biome base;
+    private final int min;
+    private final int max;
+    
+    private final int x;
+    private final int z;
+    private final long seed;
+    
+    protected BaseBiomeColumn(BiomeExtrusionProvider biomeProvider, Biome base, int min, int max, int x, int z, long seed) {
+        this.biomeProvider = biomeProvider;
+        this.base = base;
+        this.min = min;
+        this.max = max;
+        this.x = x;
+        this.z = z;
+        this.seed = seed;
+    }
+    
+    @Override
+    public int getMinY() {
+        return min;
+    }
+    
+    @Override
+    public int getMaxY() {
+        return max;
+    }
+    
+    @Override
+    public int getX() {
+        return x;
+    }
+    
+    @Override
+    public int getZ() {
+        return z;
+    }
+    
+    @Override
+    public Biome get(int y) {
+        return biomeProvider.extrude(base, x, y, z, seed);
+    }
+}

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/BiomeExtrusionAddon.java

@@ -0,0 +1,67 @@
+package com.dfsek.terra.addons.biome.extrusion;
+
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import java.util.function.Supplier;
+
+import com.dfsek.terra.addons.biome.extrusion.api.Extrusion;
+import com.dfsek.terra.addons.biome.extrusion.api.ReplaceableBiome;
+import com.dfsek.terra.addons.biome.extrusion.config.BiomeExtrusionTemplate;
+import com.dfsek.terra.addons.biome.extrusion.config.ReplaceableBiomeLoader;
+import com.dfsek.terra.addons.biome.extrusion.config.extrusions.ReplaceExtrusionTemplate;
+import com.dfsek.terra.addons.biome.extrusion.config.extrusions.SetExtrusionTemplate;
+import com.dfsek.terra.addons.manifest.api.AddonInitializer;
+import com.dfsek.terra.api.Platform;
+import com.dfsek.terra.api.addon.BaseAddon;
+import com.dfsek.terra.api.event.events.config.pack.ConfigPackPostLoadEvent;
+import com.dfsek.terra.api.event.events.config.pack.ConfigPackPreLoadEvent;
+import com.dfsek.terra.api.event.functional.FunctionalEventHandler;
+import com.dfsek.terra.api.inject.annotations.Inject;
+import com.dfsek.terra.api.registry.CheckedRegistry;
+import com.dfsek.terra.api.registry.Registry;
+import com.dfsek.terra.api.util.reflection.TypeKey;
+import com.dfsek.terra.api.world.biome.Biome;
+import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
+
+
+public class BiomeExtrusionAddon implements AddonInitializer {
+    public static final TypeKey<Supplier<ObjectTemplate<Extrusion>>> EXTRUSION_REGISTRY_KEY = new TypeKey<>() {
+    };
+    
+    public static final TypeKey<Supplier<ObjectTemplate<BiomeProvider>>> PROVIDER_REGISTRY_KEY = new TypeKey<>() {
+    };
+    
+    @Inject
+    private Platform platform;
+    
+    @Inject
+    private BaseAddon addon;
+    
+    @Override
+    public void initialize() {
+        platform.getEventManager()
+                .getHandler(FunctionalEventHandler.class)
+                .register(addon, ConfigPackPreLoadEvent.class)
+                .then(event -> {
+                    CheckedRegistry<Supplier<ObjectTemplate<BiomeProvider>>> providerRegistry =
+                            event.getPack()
+                                 .getOrCreateRegistry(PROVIDER_REGISTRY_KEY);
+                    providerRegistry.register(addon.key("EXTRUSION"), BiomeExtrusionTemplate::new);
+                })
+                .then(event -> {
+                    CheckedRegistry<Supplier<ObjectTemplate<Extrusion>>> extrusionRegistry = event.getPack().getOrCreateRegistry(
+                            EXTRUSION_REGISTRY_KEY);
+                    extrusionRegistry.register(addon.key("SET"), SetExtrusionTemplate::new);
+                    extrusionRegistry.register(addon.key("REPLACE"), ReplaceExtrusionTemplate::new);
+                })
+                .failThrough();
+        
+        platform.getEventManager()
+                .getHandler(FunctionalEventHandler.class)
+                .register(addon, ConfigPackPostLoadEvent.class)
+                .then(event -> {
+                    Registry<Biome> biomeRegistry = event.getPack().getRegistry(Biome.class);
+                    event.getPack().applyLoader(ReplaceableBiome.class, new ReplaceableBiomeLoader(biomeRegistry));
+                });
+    }
+}

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/BiomeExtrusionProvider.java

@@ -0,0 +1,67 @@
+package com.dfsek.terra.addons.biome.extrusion;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+import com.dfsek.terra.addons.biome.extrusion.api.Extrusion;
+import com.dfsek.terra.api.util.Column;
+import com.dfsek.terra.api.world.biome.Biome;
+import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
+
+
+public class BiomeExtrusionProvider implements BiomeProvider {
+    private final BiomeProvider delegate;
+    private final Set<Biome> biomes;
+    private final List<Extrusion> extrusions;
+    private final int resolution;
+    
+    public BiomeExtrusionProvider(BiomeProvider delegate, List<Extrusion> extrusions, int resolution) {
+        this.delegate = delegate;
+        this.biomes = delegate.stream().collect(Collectors.toSet());
+        extrusions.forEach(e -> biomes.addAll(e.getBiomes()));
+        this.extrusions = extrusions;
+        this.resolution = resolution;
+    }
+    
+    @Override
+    public Biome getBiome(int x, int y, int z, long seed) {
+        Biome delegated = delegate.getBiome(x, y, z, seed);
+        
+        return extrude(delegated, x, y, z, seed);
+    }
+    
+    public Biome extrude(Biome original, int x, int y, int z, long seed) {
+        for(Extrusion extrusion : extrusions) {
+            original = extrusion.extrude(original, x, y, z, seed);
+        }
+        return original;
+    }
+    
+    @Override
+    public Column<Biome> getColumn(int x, int z, long seed, int min, int max) {
+        return delegate.getBaseBiome(x, z, seed)
+                       .map(base -> (Column<Biome>) new BaseBiomeColumn(this, base, min, max, x, z, seed))
+                       .orElseGet(() -> BiomeProvider.super.getColumn(x, z, seed, min, max));
+    }
+    
+    @Override
+    public Optional<Biome> getBaseBiome(int x, int z, long seed) {
+        return delegate.getBaseBiome(x, z, seed);
+    }
+    
+    @Override
+    public Iterable<Biome> getBiomes() {
+        return biomes;
+    }
+    
+    @Override
+    public int resolution() {
+        return resolution;
+    }
+    
+    public BiomeProvider getDelegate() {
+        return delegate;
+    }
+}

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/api/Extrusion.java

@@ -0,0 +1,12 @@
+package com.dfsek.terra.addons.biome.extrusion.api;
+
+import java.util.Collection;
+
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+public interface Extrusion {
+    Biome extrude(Biome original, int x, int y, int z, long seed);
+    
+    Collection<Biome> getBiomes();
+}

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/api/PresentBiome.java

@@ -0,0 +1,23 @@
+package com.dfsek.terra.addons.biome.extrusion.api;
+
+
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+final class PresentBiome implements ReplaceableBiome {
+    private final Biome biome;
+    
+    PresentBiome(Biome biome) {
+        this.biome = biome;
+    }
+    
+    @Override
+    public Biome get(Biome existing) {
+        return biome;
+    }
+    
+    @Override
+    public boolean isSelf() {
+        return false;
+    }
+}

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/api/ReplaceableBiome.java

@@ -0,0 +1,31 @@
+package com.dfsek.terra.addons.biome.extrusion.api;
+
+
+import java.util.Optional;
+
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+/**
+ * Basically just a specialised implementation of {@link Optional} for biomes where a biome may be a "self" reference.
+ */
+public sealed interface ReplaceableBiome permits PresentBiome, SelfBiome {
+    static ReplaceableBiome of(Biome biome) {
+        return new PresentBiome(biome);
+    }
+    
+    static ReplaceableBiome self() {
+        return SelfBiome.INSTANCE;
+    }
+    
+    Biome get(Biome existing);
+    
+    default Biome get() {
+        if(isSelf()) {
+            throw new IllegalStateException("Cannot get() self biome!");
+        }
+        return get(null);
+    }
+    
+    boolean isSelf();
+}

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/api/SelfBiome.java

@@ -0,0 +1,21 @@
+package com.dfsek.terra.addons.biome.extrusion.api;
+
+
+import java.util.Objects;
+
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+final class SelfBiome implements ReplaceableBiome {
+    public static final SelfBiome INSTANCE = new SelfBiome();
+    
+    @Override
+    public Biome get(Biome existing) {
+        return Objects.requireNonNull(existing);
+    }
+    
+    @Override
+    public boolean isSelf() {
+        return true;
+    }
+}

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/config/BiomeExtrusionTemplate.java

@@ -0,0 +1,30 @@
+package com.dfsek.terra.addons.biome.extrusion.config;
+
+import com.dfsek.tectonic.api.config.template.annotations.Default;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import java.util.List;
+
+import com.dfsek.terra.addons.biome.extrusion.BiomeExtrusionProvider;
+import com.dfsek.terra.addons.biome.extrusion.api.Extrusion;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
+
+
+public class BiomeExtrusionTemplate implements ObjectTemplate<BiomeProvider> {
+    @Value("provider")
+    private @Meta BiomeProvider provider;
+    
+    @Value("resolution")
+    @Default
+    private @Meta int resolution = 4;
+    
+    @Value("extrusions")
+    private @Meta List<@Meta Extrusion> extrusions;
+    
+    @Override
+    public BiomeProvider get() {
+        return new BiomeExtrusionProvider(provider, extrusions, resolution);
+    }
+}

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/config/ReplaceableBiomeLoader.java

@@ -0,0 +1,32 @@
+package com.dfsek.terra.addons.biome.extrusion.config;
+
+import com.dfsek.tectonic.api.depth.DepthTracker;
+import com.dfsek.tectonic.api.exception.LoadException;
+import com.dfsek.tectonic.api.loader.ConfigLoader;
+import com.dfsek.tectonic.api.loader.type.TypeLoader;
+import org.jetbrains.annotations.NotNull;
+
+import java.lang.reflect.AnnotatedType;
+
+import com.dfsek.terra.addons.biome.extrusion.api.ReplaceableBiome;
+import com.dfsek.terra.api.registry.Registry;
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+public class ReplaceableBiomeLoader implements TypeLoader<ReplaceableBiome> {
+    private final Registry<Biome> biomeRegistry;
+    
+    public ReplaceableBiomeLoader(Registry<Biome> biomeRegistry) {
+        this.biomeRegistry = biomeRegistry;
+    }
+    
+    @Override
+    public ReplaceableBiome load(@NotNull AnnotatedType t, @NotNull Object c, @NotNull ConfigLoader loader, DepthTracker depthTracker)
+    throws LoadException {
+        if(c.equals("SELF")) return ReplaceableBiome.self();
+        return biomeRegistry
+                .getByID((String) c)
+                .map(ReplaceableBiome::of)
+                .orElseThrow(() -> new LoadException("No such biome: " + c, depthTracker));
+    }
+}

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/config/extrusions/ReplaceExtrusionTemplate.java

@@ -0,0 +1,23 @@
+package com.dfsek.terra.addons.biome.extrusion.config.extrusions;
+
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import com.dfsek.terra.addons.biome.extrusion.api.Extrusion;
+import com.dfsek.terra.addons.biome.extrusion.api.ReplaceableBiome;
+import com.dfsek.terra.addons.biome.extrusion.extrusions.ReplaceExtrusion;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+
+
+public class ReplaceExtrusionTemplate extends SamplerExtrusionTemplate {
+    @Value("to")
+    private @Meta ProbabilityCollection<@Meta ReplaceableBiome> biomes;
+    
+    @Value("from")
+    private @Meta String fromTag;
+    
+    @Override
+    public Extrusion get() {
+        return new ReplaceExtrusion(sampler, range, biomes, fromTag);
+    }
+}

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/config/extrusions/SamplerExtrusionTemplate.java

@@ -0,0 +1,18 @@
+package com.dfsek.terra.addons.biome.extrusion.config.extrusions;
+
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import com.dfsek.terra.addons.biome.extrusion.api.Extrusion;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.util.Range;
+
+
+public abstract class SamplerExtrusionTemplate implements ObjectTemplate<Extrusion> {
+    @Value("sampler")
+    protected @Meta NoiseSampler sampler;
+    
+    @Value("range")
+    protected @Meta Range range;
+}

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/config/extrusions/SetExtrusionTemplate.java

@@ -0,0 +1,20 @@
+package com.dfsek.terra.addons.biome.extrusion.config.extrusions;
+
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import com.dfsek.terra.addons.biome.extrusion.api.Extrusion;
+import com.dfsek.terra.addons.biome.extrusion.api.ReplaceableBiome;
+import com.dfsek.terra.addons.biome.extrusion.extrusions.SetExtrusion;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+
+
+public class SetExtrusionTemplate extends SamplerExtrusionTemplate {
+    @Value("to")
+    private @Meta ProbabilityCollection<@Meta ReplaceableBiome> biomes;
+    
+    @Override
+    public Extrusion get() {
+        return new SetExtrusion(sampler, range, biomes);
+    }
+}

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/extrusions/ReplaceExtrusion.java

@@ -0,0 +1,52 @@
+package com.dfsek.terra.addons.biome.extrusion.extrusions;
+
+import java.util.Collection;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+
+import com.dfsek.terra.addons.biome.extrusion.api.Extrusion;
+import com.dfsek.terra.addons.biome.extrusion.api.ReplaceableBiome;
+import com.dfsek.terra.addons.biome.query.api.BiomeQueries;
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.util.Range;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+/**
+ * Sets biomes at locations based on a sampler.
+ */
+public class ReplaceExtrusion implements Extrusion {
+    private final NoiseSampler sampler;
+    
+    private final Range range;
+    
+    private final ProbabilityCollection<ReplaceableBiome> biomes;
+    
+    private final Predicate<Biome> hasTag;
+    
+    public ReplaceExtrusion(NoiseSampler sampler, Range range, ProbabilityCollection<ReplaceableBiome> biomes, String tag) {
+        this.sampler = sampler;
+        this.range = range;
+        this.biomes = biomes;
+        this.hasTag = BiomeQueries.has(tag);
+    }
+    
+    @Override
+    public Biome extrude(Biome original, int x, int y, int z, long seed) {
+        if(hasTag.test(original)) {
+            return range.ifInRange(y, () -> biomes.get(sampler, x, y, z, seed).get(original), original);
+        }
+        return original;
+    }
+    
+    @Override
+    public Collection<Biome> getBiomes() {
+        return biomes
+                .getContents()
+                .stream()
+                .filter(Predicate.not(ReplaceableBiome::isSelf))
+                .map(ReplaceableBiome::get)
+                .collect(Collectors.toSet());
+    }
+}

common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/extrusions/SetExtrusion.java

@@ -0,0 +1,45 @@
+package com.dfsek.terra.addons.biome.extrusion.extrusions;
+
+import java.util.Collection;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+
+import com.dfsek.terra.addons.biome.extrusion.api.Extrusion;
+import com.dfsek.terra.addons.biome.extrusion.api.ReplaceableBiome;
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.util.Range;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+/**
+ * Sets biomes at locations based on a sampler.
+ */
+public class SetExtrusion implements Extrusion {
+    private final NoiseSampler sampler;
+    
+    private final Range range;
+    
+    private final ProbabilityCollection<ReplaceableBiome> biomes;
+    
+    public SetExtrusion(NoiseSampler sampler, Range range, ProbabilityCollection<ReplaceableBiome> biomes) {
+        this.sampler = sampler;
+        this.range = range;
+        this.biomes = biomes;
+    }
+    
+    @Override
+    public Biome extrude(Biome original, int x, int y, int z, long seed) {
+        return range.ifInRange(y, () -> biomes.get(sampler, x, y, z, seed).get(original), original);
+    }
+    
+    @Override
+    public Collection<Biome> getBiomes() {
+        return biomes
+                .getContents()
+                .stream()
+                .filter(Predicate.not(ReplaceableBiome::isSelf))
+                .map(ReplaceableBiome::get)
+                .collect(Collectors.toSet());
+    }
+}

common/addons/biome-provider-extrusion/src/main/resources/terra.addon.yml

@@ -0,0 +1,14 @@
+schema-version: 1
+contributors:
+  - Terra contributors
+id: biome-provider-extrusion
+version: @VERSION@
+entrypoints:
+  - "com.dfsek.terra.addons.biome.extrusion.BiomeExtrusionAddon"
+website:
+  issues: https://github.com/PolyhedralDev/Terra/issues
+  source: https://github.com/PolyhedralDev/Terra
+  docs: https://terra.polydev.org
+license: MIT License
+depends:
+  biome-query-api: "1.+"

common/addons/biome-provider-image-v2/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020-2021 Polyhedral Development
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

common/addons/biome-provider-image-v2/README.md

@@ -0,0 +1,5 @@
+# biome-provider-image-v2
+
+Implements and registers the `IMAGE` biome provider, which
+utilizes various config types provided by the `library-image` addon to
+distribute biomes based on images.

common/addons/biome-provider-image-v2/build.gradle.kts

@@ -0,0 +1,12 @@
+version = version("1.0.0")
+
+dependencies {
+    compileOnlyApi(project(":common:addons:manifest-addon-loader"))
+    compileOnlyApi(project(":common:addons:library-image"))
+    implementation("net.jafama", "jafama", Versions.Libraries.Internal.jafama)
+    testImplementation("net.jafama", "jafama", Versions.Libraries.Internal.jafama)
+}
+
+tasks.named<com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar>("shadowJar") {
+    relocate("net.jafama", "com.dfsek.terra.addons.biome.image.lib.jafama")
+}

common/addons/biome-provider-image-v2/src/main/java/com/dfsek/terra/addons/biome/image/v2/ImageBiomeProvider.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.image.v2;
+
+import java.util.Optional;
+
+import com.dfsek.terra.addons.image.converter.ColorConverter;
+import com.dfsek.terra.addons.image.colorsampler.ColorSampler;
+import com.dfsek.terra.api.world.biome.Biome;
+import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
+
+
+public class ImageBiomeProvider implements BiomeProvider {
+    private final int resolution;
+    
+    private final ColorConverter<Biome> colorConverter;
+    
+    private final ColorSampler colorSampler;
+    
+    public ImageBiomeProvider(ColorConverter<Biome> colorConverter, ColorSampler colorSampler, int resolution) {
+        this.resolution = resolution;
+        this.colorConverter = colorConverter;
+        this.colorSampler = colorSampler;
+    }
+    
+    @Override
+    public Biome getBiome(int x, int y, int z, long seed) {
+        return getBiome(x, z);
+    }
+    
+    public Biome getBiome(int x, int z) {
+        x /= resolution;
+        z /= resolution;
+        return colorConverter.apply(colorSampler.apply(x, z));
+    }
+    
+    @Override
+    public Optional<Biome> getBaseBiome(int x, int z, long seed) {
+        return Optional.of(getBiome(x, z));
+    }
+    
+    @Override
+    public Iterable<Biome> getBiomes() {
+        return colorConverter.getEntries();
+    }
+}

common/addons/biome-provider-image-v2/src/main/java/com/dfsek/terra/addons/biome/image/v2/ImageBiomeProviderAddon.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.image.v2;
+
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import java.util.function.Supplier;
+
+import com.dfsek.terra.addons.biome.image.v2.config.ImageProviderTemplate;
+import com.dfsek.terra.addons.biome.image.v2.config.converter.ClosestBiomeColorConverterTemplate;
+import com.dfsek.terra.addons.biome.image.v2.config.converter.ExactBiomeColorConverterTemplate;
+import com.dfsek.terra.addons.biome.image.v2.config.converter.mapping.DefinedBiomeColorMappingTemplate;
+import com.dfsek.terra.addons.image.converter.ColorConverter;
+import com.dfsek.terra.addons.image.converter.mapping.BiomeDefinedColorMapping;
+import com.dfsek.terra.addons.image.converter.mapping.ColorMapping;
+import com.dfsek.terra.addons.manifest.api.AddonInitializer;
+import com.dfsek.terra.api.Platform;
+import com.dfsek.terra.api.addon.BaseAddon;
+import com.dfsek.terra.api.event.events.config.pack.ConfigPackPreLoadEvent;
+import com.dfsek.terra.api.event.functional.FunctionalEventHandler;
+import com.dfsek.terra.api.inject.annotations.Inject;
+import com.dfsek.terra.api.registry.CheckedRegistry;
+import com.dfsek.terra.api.util.reflection.TypeKey;
+import com.dfsek.terra.api.world.biome.Biome;
+import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
+
+
+public class ImageBiomeProviderAddon implements AddonInitializer {
+    public static final TypeKey<Supplier<ObjectTemplate<BiomeProvider>>> PROVIDER_REGISTRY_KEY = new TypeKey<>() {
+    };
+    
+    public static final TypeKey<Supplier<ObjectTemplate<ColorConverter<Biome>>>> BIOME_COLOR_CONVERTER_REGISTRY_KEY = new TypeKey<>() {
+    };
+    
+    public static final TypeKey<Supplier<ObjectTemplate<ColorMapping<Biome>>>> BIOME_COLOR_MAPPING_REGISTRY_KEY = new TypeKey<>() {
+    };
+    
+    @Inject
+    private Platform platform;
+    
+    @Inject
+    private BaseAddon addon;
+    
+    @Override
+    public void initialize() {
+        platform.getEventManager()
+                .getHandler(FunctionalEventHandler.class)
+                .register(addon, ConfigPackPreLoadEvent.class)
+                .priority(501)
+                .then(event -> {
+                    CheckedRegistry<Supplier<ObjectTemplate<BiomeProvider>>> providerRegistry = event.getPack().getOrCreateRegistry(
+                            PROVIDER_REGISTRY_KEY);
+                    providerRegistry.register(addon.key("IMAGE"), ImageProviderTemplate::new);
+                })
+                .then(event -> {
+                    CheckedRegistry<Supplier<ObjectTemplate<ColorConverter<Biome>>>> biomeColorConverterRegistry = event.getPack().getOrCreateRegistry(
+                            BIOME_COLOR_CONVERTER_REGISTRY_KEY);
+                    biomeColorConverterRegistry.register(addon.key("EXACT"), ExactBiomeColorConverterTemplate::new);
+                    biomeColorConverterRegistry.register(addon.key("CLOSEST"), ClosestBiomeColorConverterTemplate::new);
+                })
+                .then(event -> {
+                    CheckedRegistry<Supplier<ObjectTemplate<ColorMapping<Biome>>>> biomeColorMappingRegistry = event.getPack().getOrCreateRegistry(
+                            BIOME_COLOR_MAPPING_REGISTRY_KEY);
+                    biomeColorMappingRegistry.register(addon.key("USE_BIOME_COLORS"), () -> () -> new BiomeDefinedColorMapping<>(event.getPack().getRegistry(Biome.class), b -> b));
+                    biomeColorMappingRegistry.register(addon.key("MAP"), DefinedBiomeColorMappingTemplate::new);
+                })
+                .failThrough();
+    }
+}

common/addons/biome-provider-image-v2/src/main/java/com/dfsek/terra/addons/biome/image/v2/config/ImageProviderTemplate.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.image.v2.config;
+
+import com.dfsek.tectonic.api.config.template.annotations.Default;
+import com.dfsek.tectonic.api.config.template.annotations.Description;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import com.dfsek.terra.addons.biome.image.v2.ImageBiomeProvider;
+import com.dfsek.terra.addons.image.converter.ColorConverter;
+import com.dfsek.terra.addons.image.colorsampler.ColorSampler;
+import com.dfsek.terra.api.world.biome.Biome;
+import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
+
+
+@SuppressWarnings("FieldMayBeFinal")
+public class ImageProviderTemplate implements ObjectTemplate<BiomeProvider> {
+    
+    @Value("resolution")
+    @Default
+    @Description("Sets the resolution at which to sample the image.")
+    private int resolution = 1;
+    
+    @Value("color-sampler")
+    private ColorSampler colorSampler;
+    
+    @Value("color-conversion")
+    private ColorConverter<Biome> colorConverter;
+    
+    @Override
+    public BiomeProvider get() {
+        return new ImageBiomeProvider(colorConverter, colorSampler, resolution);
+    }
+}

common/addons/biome-provider-image-v2/src/main/java/com/dfsek/terra/addons/biome/image/v2/config/converter/ClosestBiomeColorConverterTemplate.java

@@ -0,0 +1,19 @@
+package com.dfsek.terra.addons.biome.image.v2.config.converter;
+
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import com.dfsek.terra.addons.image.config.converter.ClosestColorConverterTemplate;
+import com.dfsek.terra.addons.image.converter.mapping.ColorMapping;
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+public class ClosestBiomeColorConverterTemplate extends ClosestColorConverterTemplate<Biome> {
+
+    @Value("match")
+    private ColorMapping<Biome> match;
+    
+    @Override
+    protected ColorMapping<Biome> getMapping() {
+        return match;
+    }
+}

common/addons/biome-provider-image-v2/src/main/java/com/dfsek/terra/addons/biome/image/v2/config/converter/ExactBiomeColorConverterTemplate.java

@@ -0,0 +1,37 @@
+package com.dfsek.terra.addons.biome.image.v2.config.converter;
+
+import com.dfsek.tectonic.api.config.template.annotations.Default;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import com.dfsek.terra.addons.image.config.converter.ExactColorConverterTemplate;
+import com.dfsek.terra.addons.image.converter.mapping.ColorMapping;
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+public class ExactBiomeColorConverterTemplate extends ExactColorConverterTemplate<Biome> {
+    
+    @Value("match")
+    private ColorMapping<Biome> match;
+
+    @Value("else")
+    private Biome fallback;
+    
+    @Value("ignore-alpha")
+    @Default
+    private boolean ignoreAlpha = true;
+
+    @Override
+    protected ColorMapping<Biome> getMapping() {
+        return match;
+    }
+
+    @Override
+    protected Biome getFallback() {
+        return fallback;
+    }
+    
+    @Override
+    protected boolean ignoreAlpha() {
+        return ignoreAlpha;
+    }
+}

common/addons/biome-provider-image-v2/src/main/java/com/dfsek/terra/addons/biome/image/v2/config/converter/mapping/DefinedBiomeColorMappingTemplate.java

@@ -0,0 +1,24 @@
+package com.dfsek.terra.addons.biome.image.v2.config.converter.mapping;
+
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import java.util.Map;
+
+import com.dfsek.terra.addons.image.config.ColorLoader.ColorString;
+import com.dfsek.terra.addons.image.converter.mapping.ColorMapping;
+import com.dfsek.terra.addons.image.util.MapUtil;
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+public class DefinedBiomeColorMappingTemplate implements ObjectTemplate<ColorMapping<Biome>> {
+    
+    @Value("map")
+    Map<ColorString, Biome> map;
+    
+    @Override
+    public ColorMapping<Biome> get() {
+        var map = MapUtil.mapKeys(this.map, ColorString::getColor);
+        return () -> map;
+    }
+}

common/addons/biome-provider-image-v2/src/main/resources/terra.addon.yml

@@ -0,0 +1,14 @@
+schema-version: 1
+contributors:
+  - Terra contributors
+id: biome-provider-image-v2
+version: @VERSION@
+entrypoints:
+  - "com.dfsek.terra.addons.biome.image.v2.ImageBiomeProviderAddon"
+website:
+  issues: https://github.com/PolyhedralDev/Terra/issues
+  source: https://github.com/PolyhedralDev/Terra
+  docs: https://terra.polydev.org
+license: MIT License
+depends:
+  library-image: "1.+"

common/addons/biome-provider-image/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020-2021 Polyhedral Development
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

common/addons/biome-provider-image/build.gradle.kts

@@ -1,2 +1,11 @@
+version = version("1.0.0")
+
 dependencies {
+    compileOnlyApi(project(":common:addons:manifest-addon-loader"))
+    implementation("net.jafama", "jafama", Versions.Libraries.Internal.jafama)
+    testImplementation("net.jafama", "jafama", Versions.Libraries.Internal.jafama)
 }
+
+tasks.named<com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar>("shadowJar") {
+    relocate("net.jafama", "com.dfsek.terra.addons.biome.image.lib.jafama")
+}

common/addons/biome-provider-image/src/main/java/com/dfsek/terra/addons/biome/image/ImageBiomeProvider.java

@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
 package com.dfsek.terra.addons.biome.image;
 
 import net.jafama.FastMath;
@@ -6,19 +13,20 @@ import java.awt.Color;
 import java.awt.image.BufferedImage;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Optional;
 import java.util.Set;
 
-import com.dfsek.terra.api.world.biome.TerraBiome;
+import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
 
 
 public class ImageBiomeProvider implements BiomeProvider {
-    private final Map<Color, TerraBiome> colorBiomeMap = new HashMap<>();
+    private final Map<Color, Biome> colorBiomeMap = new HashMap<>();
     private final BufferedImage image;
     private final int resolution;
     private final Align align;
     
-    public ImageBiomeProvider(Set<TerraBiome> registry, BufferedImage image, int resolution, Align align) {
+    public ImageBiomeProvider(Set<Biome> registry, BufferedImage image, int resolution, Align align) {
         this.image = image;
         this.resolution = resolution;
         this.align = align;
@@ -30,7 +38,11 @@ public class ImageBiomeProvider implements BiomeProvider {
     }
     
     @Override
-    public TerraBiome getBiome(int x, int z, long seed) {
+    public Biome getBiome(int x, int y, int z, long seed) {
+        return getBiome(x, z);
+    }
+    
+    public Biome getBiome(int x, int z) {
         x /= resolution;
         z /= resolution;
         Color color = align.getColor(image, x, z);
@@ -44,6 +56,16 @@ public class ImageBiomeProvider implements BiomeProvider {
                                                       }));
     }
     
+    @Override
+    public Optional<Biome> getBaseBiome(int x, int z, long seed) {
+        return Optional.of(getBiome(x, z));
+    }
+    
+    @Override
+    public Iterable<Biome> getBiomes() {
+        return colorBiomeMap.values();
+    }
+    
     public enum Align {
         CENTER {
             @Override

common/addons/biome-provider-image/src/main/java/com/dfsek/terra/addons/biome/image/ImageBiomeProviderAddon.java

@@ -1,43 +1,56 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
 package com.dfsek.terra.addons.biome.image;
 
-import com.dfsek.tectonic.loading.object.ObjectTemplate;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.util.function.Supplier;
 
-import com.dfsek.terra.api.TerraPlugin;
+import com.dfsek.terra.addons.manifest.api.AddonInitializer;
-import com.dfsek.terra.api.addon.TerraAddon;
+import com.dfsek.terra.api.Platform;
-import com.dfsek.terra.api.addon.annotations.Addon;
+import com.dfsek.terra.api.addon.BaseAddon;
-import com.dfsek.terra.api.addon.annotations.Author;
-import com.dfsek.terra.api.addon.annotations.Version;
 import com.dfsek.terra.api.event.events.config.pack.ConfigPackPreLoadEvent;
 import com.dfsek.terra.api.event.functional.FunctionalEventHandler;
-import com.dfsek.terra.api.injection.annotations.Inject;
+import com.dfsek.terra.api.inject.annotations.Inject;
 import com.dfsek.terra.api.registry.CheckedRegistry;
 import com.dfsek.terra.api.util.reflection.TypeKey;
-import com.dfsek.terra.api.world.biome.TerraBiome;
+import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
 
 
-@Addon("biome-provider-image")
+public class ImageBiomeProviderAddon implements AddonInitializer {
-@Author("Terra")
+    
-@Version("1.0.0")
+    private static final Logger logger = LoggerFactory.getLogger(ImageBiomeProviderAddon.class);
-public class ImageBiomeProviderAddon extends TerraAddon {
+    
     public static final TypeKey<Supplier<ObjectTemplate<BiomeProvider>>> PROVIDER_REGISTRY_KEY = new TypeKey<>() {
     };
     
     @Inject
-    private TerraPlugin main;
+    private Platform platform;
+    
+    @Inject
+    private BaseAddon addon;
     
     @Override
     public void initialize() {
-        main.getEventManager()
+        platform.getEventManager()
-            .getHandler(FunctionalEventHandler.class)
+                .getHandler(FunctionalEventHandler.class)
-            .register(this, ConfigPackPreLoadEvent.class)
+                .register(addon, ConfigPackPreLoadEvent.class)
-            .then(event -> {
+                .then(event -> {
-                CheckedRegistry<Supplier<ObjectTemplate<BiomeProvider>>> providerRegistry = event.getPack().getOrCreateRegistry(
+                    CheckedRegistry<Supplier<ObjectTemplate<BiomeProvider>>> providerRegistry = event.getPack().getOrCreateRegistry(
-                        PROVIDER_REGISTRY_KEY);
+                            PROVIDER_REGISTRY_KEY);
-                providerRegistry.register("IMAGE", () -> new ImageProviderTemplate(event.getPack().getRegistry(TerraBiome.class)));
+                    providerRegistry.register(addon.key("IMAGE"),
-            })
+                                              () -> new ImageProviderTemplate(event.getPack().getRegistry(Biome.class)));
-            .failThrough();
+                })
+                .failThrough();
+        if(platform.getTerraConfig().isDebugLog())
+            logger.warn("The biome-provider-image addon is deprecated and scheduled for removal in Terra 7.0. It is recommended to use the biome-provider-image-v2 addon for future pack development instead.");
     }
 }

common/addons/biome-provider-image/src/main/java/com/dfsek/terra/addons/biome/image/ImageProviderTemplate.java

@@ -1,28 +1,40 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
 package com.dfsek.terra.addons.biome.image;
 
-import com.dfsek.tectonic.annotations.Default;
+import com.dfsek.tectonic.api.config.template.annotations.Default;
-import com.dfsek.tectonic.annotations.Value;
+import com.dfsek.tectonic.api.config.template.annotations.Description;
-import com.dfsek.tectonic.loading.object.ObjectTemplate;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
 
 import java.awt.image.BufferedImage;
 import java.util.HashSet;
 
 import com.dfsek.terra.api.registry.Registry;
-import com.dfsek.terra.api.world.biome.TerraBiome;
+import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
 
 
+@SuppressWarnings("FieldMayBeFinal")
 public class ImageProviderTemplate implements ObjectTemplate<BiomeProvider> {
-    private final Registry<TerraBiome> biomes;
+    private final Registry<Biome> biomes;
     @Value("resolution")
     @Default
-    private final int resolution = 1;
+    @Description("Sets the resolution at which to sample the image.")
+    private int resolution = 1;
     @Value("image.name")
+    @Description("Sets the location of the image on the filesystem, relative to the pack root.")
     private BufferedImage image;
     @Value("image.align")
+    @Description("Sets the alignment style to use for the image.")
     private ImageBiomeProvider.Align align;
     
-    public ImageProviderTemplate(Registry<TerraBiome> set) {
+    public ImageProviderTemplate(Registry<Biome> set) {
         this.biomes = set;
     }
     

common/addons/biome-provider-image/src/main/resources/terra.addon.yml

@@ -0,0 +1,12 @@
+schema-version: 1
+contributors:
+  - Terra contributors
+id: biome-provider-image
+version: @VERSION@
+entrypoints:
+  - "com.dfsek.terra.addons.biome.image.ImageBiomeProviderAddon"
+website:
+  issues: https://github.com/PolyhedralDev/Terra/issues
+  source: https://github.com/PolyhedralDev/Terra
+  docs: https://terra.polydev.org
+license: MIT License

common/addons/biome-provider-pipeline-v2/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020-2021 Polyhedral Development
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

common/addons/biome-provider-pipeline-v2/README.md

@@ -0,0 +1,12 @@
+# biome-provider-pipeline-2
+
+The second version of the Biome Pipeline, a procedural biome provider that uses a series
+of "stages" to apply "mutations" to a 2D grid of biomes.
+
+Version 2 is a re-implementation of the original addon with the primary goal of providing
+consistent scaling for noise relative to the world
+(See https://github.com/PolyhedralDev/Terra/issues/264 for more details), and has been
+included as a separate addon to maintain parity with packs utilizing the first version. 
+
+This addon registers the `PIPELINE` biome provider type, and all associated
+configurations.

common/addons/biome-provider-pipeline-v2/build.gradle.kts

@@ -0,0 +1,12 @@
+version = version("1.0.0")
+
+dependencies {
+    compileOnlyApi(project(":common:addons:manifest-addon-loader"))
+    
+    implementation("net.jafama", "jafama", Versions.Libraries.Internal.jafama)
+    testImplementation("net.jafama", "jafama", Versions.Libraries.Internal.jafama)
+}
+
+tasks.named<com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar>("shadowJar") {
+    relocate("net.jafama", "com.dfsek.terra.addons.biome.pipeline.lib.jafama")
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/BiomePipelineAddon.java

@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2;
+
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import java.util.function.Supplier;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.config.BiomePipelineTemplate;
+import com.dfsek.terra.addons.biome.pipeline.v2.config.PipelineBiomeLoader;
+import com.dfsek.terra.addons.biome.pipeline.v2.config.source.SamplerSourceTemplate;
+import com.dfsek.terra.addons.biome.pipeline.v2.config.stage.expander.ExpanderStageTemplate;
+import com.dfsek.terra.addons.biome.pipeline.v2.config.stage.mutator.BorderListStageTemplate;
+import com.dfsek.terra.addons.biome.pipeline.v2.config.stage.mutator.BorderStageTemplate;
+import com.dfsek.terra.addons.biome.pipeline.v2.config.stage.mutator.ReplaceListStageTemplate;
+import com.dfsek.terra.addons.biome.pipeline.v2.config.stage.mutator.ReplaceStageTemplate;
+import com.dfsek.terra.addons.biome.pipeline.v2.config.stage.mutator.SmoothStageTemplate;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Source;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.dfsek.terra.addons.manifest.api.AddonInitializer;
+import com.dfsek.terra.api.Platform;
+import com.dfsek.terra.api.addon.BaseAddon;
+import com.dfsek.terra.api.event.events.config.pack.ConfigPackPostLoadEvent;
+import com.dfsek.terra.api.event.events.config.pack.ConfigPackPreLoadEvent;
+import com.dfsek.terra.api.event.functional.FunctionalEventHandler;
+import com.dfsek.terra.api.inject.annotations.Inject;
+import com.dfsek.terra.api.registry.CheckedRegistry;
+import com.dfsek.terra.api.registry.Registry;
+import com.dfsek.terra.api.util.reflection.TypeKey;
+import com.dfsek.terra.api.world.biome.Biome;
+import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
+
+
+public class BiomePipelineAddon implements AddonInitializer {
+    
+    public static final TypeKey<Supplier<ObjectTemplate<Source>>> SOURCE_REGISTRY_KEY = new TypeKey<>() {
+    };
+    
+    public static final TypeKey<Supplier<ObjectTemplate<Stage>>> STAGE_REGISTRY_KEY = new TypeKey<>() {
+    };
+    public static final TypeKey<Supplier<ObjectTemplate<BiomeProvider>>> PROVIDER_REGISTRY_KEY = new TypeKey<>() {
+    };
+    @Inject
+    private Platform platform;
+    
+    @Inject
+    private BaseAddon addon;
+    
+    @Override
+    public void initialize() {
+        platform.getEventManager()
+                .getHandler(FunctionalEventHandler.class)
+                .register(addon, ConfigPackPreLoadEvent.class)
+                .then(event -> {
+                    CheckedRegistry<Supplier<ObjectTemplate<BiomeProvider>>> providerRegistry = event.getPack().getOrCreateRegistry(
+                            PROVIDER_REGISTRY_KEY);
+                    providerRegistry.register(addon.key("PIPELINE"), BiomePipelineTemplate::new);
+                })
+                .then(event -> {
+                    CheckedRegistry<Supplier<ObjectTemplate<Source>>> sourceRegistry = event.getPack().getOrCreateRegistry(
+                            SOURCE_REGISTRY_KEY);
+                    sourceRegistry.register(addon.key("SAMPLER"), SamplerSourceTemplate::new);
+                })
+                .then(event -> {
+                    CheckedRegistry<Supplier<ObjectTemplate<Stage>>> stageRegistry = event.getPack().getOrCreateRegistry(
+                            STAGE_REGISTRY_KEY);
+                    stageRegistry.register(addon.key("FRACTAL_EXPAND"), ExpanderStageTemplate::new);
+                    stageRegistry.register(addon.key("SMOOTH"), SmoothStageTemplate::new);
+                    stageRegistry.register(addon.key("REPLACE"), ReplaceStageTemplate::new);
+                    stageRegistry.register(addon.key("REPLACE_LIST"), ReplaceListStageTemplate::new);
+                    stageRegistry.register(addon.key("BORDER"), BorderStageTemplate::new);
+                    stageRegistry.register(addon.key("BORDER_LIST"), BorderListStageTemplate::new);
+                })
+                .failThrough();
+        platform.getEventManager()
+                .getHandler(FunctionalEventHandler.class)
+                .register(addon, ConfigPackPostLoadEvent.class)
+                .then(event -> {
+                    Registry<Biome> biomeRegistry = event.getPack().getRegistry(Biome.class);
+                    event.getPack().applyLoader(PipelineBiome.class, new PipelineBiomeLoader(biomeRegistry));
+                });
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/BiomePipelineColumn.java

@@ -0,0 +1,71 @@
+package com.dfsek.terra.addons.biome.pipeline.v2;
+
+import java.util.function.Consumer;
+
+import com.dfsek.terra.api.util.Column;
+import com.dfsek.terra.api.util.function.IntIntObjConsumer;
+import com.dfsek.terra.api.util.function.IntObjConsumer;
+import com.dfsek.terra.api.world.biome.Biome;
+import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
+
+
+public class BiomePipelineColumn implements Column<Biome> {
+    private final int min;
+    private final int max;
+    
+    private final int x;
+    private final int z;
+    private final Biome biome;
+    
+    protected BiomePipelineColumn(BiomeProvider biomeProvider, int min, int max, int x, int z, long seed) {
+        this.min = min;
+        this.max = max;
+        this.x = x;
+        this.z = z;
+        this.biome = biomeProvider.getBiome(x, 0, z, seed);
+    }
+    
+    @Override
+    public int getMinY() {
+        return min;
+    }
+    
+    @Override
+    public int getMaxY() {
+        return max;
+    }
+    
+    @Override
+    public int getX() {
+        return x;
+    }
+    
+    @Override
+    public int getZ() {
+        return z;
+    }
+    
+    @Override
+    public Biome get(int y) {
+        return biome;
+    }
+    
+    @Override
+    public void forRanges(int resolution, IntIntObjConsumer<Biome> consumer) {
+        consumer.accept(min, max, biome);
+    }
+    
+    @Override
+    public void forEach(Consumer<Biome> consumer) {
+        for(int y = min; y < max; y++) {
+            consumer.accept(biome);
+        }
+    }
+    
+    @Override
+    public void forEach(IntObjConsumer<Biome> consumer) {
+        for(int y = min; y < max; y++) {
+            consumer.accept(y, biome);
+        }
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/PipelineBiomeProvider.java

@@ -0,0 +1,115 @@
+package com.dfsek.terra.addons.biome.pipeline.v2;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.BiomeChunk;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Pipeline;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.SeededVector;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.github.benmanes.caffeine.cache.Caffeine;
+import com.github.benmanes.caffeine.cache.LoadingCache;
+import net.jafama.FastMath;
+
+import java.util.Comparator;
+import java.util.HashSet;
+import java.util.Optional;
+import java.util.Set;
+import java.util.stream.StreamSupport;
+
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.registry.key.StringIdentifiable;
+import com.dfsek.terra.api.util.Column;
+import com.dfsek.terra.api.world.biome.Biome;
+import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
+
+
+public class PipelineBiomeProvider implements BiomeProvider {
+    
+    private final LoadingCache<SeededVector, BiomeChunk> biomeChunkCache;
+    private final int chunkSize;
+    private final int resolution;
+    private final NoiseSampler mutator;
+    private final double noiseAmp;
+    private final Set<Biome> biomes;
+    
+    public PipelineBiomeProvider(Pipeline pipeline, int resolution, NoiseSampler mutator, double noiseAmp) {
+        this.resolution = resolution;
+        this.mutator = mutator;
+        this.noiseAmp = noiseAmp;
+        this.chunkSize = pipeline.getChunkSize();
+        this.biomeChunkCache = Caffeine.newBuilder()
+                                       .maximumSize(64)
+                                       .build(pipeline::generateChunk);
+    
+        Set<PipelineBiome> biomeSet = new HashSet<>();
+        pipeline.getSource().getBiomes().forEach(biomeSet::add);
+        Iterable<PipelineBiome> result = biomeSet;
+        for(Stage stage : pipeline.getStages()) {
+            result = stage.getBiomes(result);
+        }
+        this.biomes = new HashSet<>();
+        Iterable<PipelineBiome> finalResult = result;
+        result.forEach(pipelineBiome -> {
+            if(pipelineBiome.isPlaceholder()) {
+            
+                StringBuilder biomeList = new StringBuilder("\n");
+                StreamSupport.stream(finalResult.spliterator(), false)
+                             .sorted(Comparator.comparing(StringIdentifiable::getID))
+                             .forEach(delegate -> biomeList
+                                     .append("    - ")
+                                     .append(delegate.getID())
+                                     .append(':')
+                                     .append(delegate.getClass().getCanonicalName())
+                                     .append('\n'));
+                throw new IllegalArgumentException("Biome Pipeline leaks placeholder biome \"" + pipelineBiome.getID() +
+                                                   "\". Ensure there is a stage to guarantee replacement of the placeholder biome. Biomes: " +
+                                                   biomeList);
+            }
+            this.biomes.add(pipelineBiome.getBiome());
+        });
+    }
+    
+    @Override
+    public Biome getBiome(int x, int y, int z, long seed) {
+        return getBiome(x, z, seed);
+    }
+    
+    public Biome getBiome(int x, int z, long seed) {
+    
+        x += mutator.noise(seed + 1, x, z) * noiseAmp;
+        z += mutator.noise(seed + 2, x, z) * noiseAmp;
+        
+        x /= resolution;
+        z /= resolution;
+        
+        int chunkX = FastMath.floorDiv(x, chunkSize);
+        int chunkZ = FastMath.floorDiv(z, chunkSize);
+        
+        int chunkWorldX = chunkX * chunkSize;
+        int chunkWorldZ = chunkZ * chunkSize;
+        
+        int xInChunk = x - chunkWorldX;
+        int zInChunk = z - chunkWorldZ;
+        
+        return biomeChunkCache.get(new SeededVector(seed, chunkWorldX, chunkWorldZ)).get(xInChunk, zInChunk).getBiome();
+    }
+    
+    @Override
+    public Iterable<Biome> getBiomes() {
+        return biomes;
+    }
+    
+    @Override
+    public Optional<Biome> getBaseBiome(int x, int z, long seed) {
+        return Optional.of(getBiome(x, z, seed));
+    }
+    
+    @Override
+    public Column<Biome> getColumn(int x, int z, long seed, int min, int max) {
+        return new BiomePipelineColumn(this, min, max, x, z, seed);
+    }
+    
+    @Override
+    public int resolution() {
+        return resolution;
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/api/BiomeChunk.java

@@ -0,0 +1,10 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.api;
+
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+
+
+public interface BiomeChunk {
+    
+    PipelineBiome get(int xInChunk, int zInChunk);
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/api/Expander.java

@@ -0,0 +1,29 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.api;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.pipeline.BiomeChunkImpl.ViewPoint;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+
+
+/**
+ * Resizes the internal grid of a BiomeChunk when applied, serves the purpose of
+ * filling in null biomes as a result of this resizing.
+ */
+public interface Expander extends Stage {
+    
+    PipelineBiome fillBiome(ViewPoint viewPoint);
+    
+    @Override
+    default int maxRelativeReadDistance() {
+        return 0;
+    }
+    
+    @Override
+    default PipelineBiome apply(ViewPoint viewPoint) {
+        PipelineBiome currentBiome = viewPoint.getBiome();
+        if(currentBiome == null) {
+            return fillBiome(viewPoint);
+        } else {
+            return currentBiome;
+        }
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/api/Pipeline.java

@@ -0,0 +1,14 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.api;
+
+import java.util.List;
+
+
+public interface Pipeline {
+    BiomeChunk generateChunk(SeededVector worldCoordinates);
+    
+    int getChunkSize();
+    
+    Source getSource();
+    
+    List<Stage> getStages();
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/api/SeededVector.java

@@ -0,0 +1,19 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.api;
+
+public record SeededVector(long seed, int x, int z) {
+    
+    @Override
+    public boolean equals(Object obj) {
+        if(obj instanceof SeededVector that) {
+            return this.z == that.z && this.x == that.x && this.seed == that.seed;
+        }
+        return false;
+    }
+    
+    @Override
+    public int hashCode() {
+        int code = x;
+        code = 31 * code + z;
+        return 31 * code + ((int) (seed ^ (seed >>> 32)));
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/api/Source.java

@@ -0,0 +1,11 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.api;
+
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+
+
+public interface Source {
+    PipelineBiome get(long seed, int x, int z);
+    
+    Iterable<PipelineBiome> getBiomes();
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/api/Stage.java

@@ -0,0 +1,15 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.api;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.pipeline.BiomeChunkImpl.ViewPoint;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+
+
+public interface Stage {
+    PipelineBiome apply(ViewPoint viewPoint);
+    
+    int maxRelativeReadDistance();
+    
+    default Iterable<PipelineBiome> getBiomes(Iterable<PipelineBiome> biomes) {
+        return biomes;
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/api/biome/DelegatedPipelineBiome.java

@@ -0,0 +1,40 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.api.biome;
+
+import java.util.Set;
+
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+public final class DelegatedPipelineBiome implements PipelineBiome {
+    private final Biome biome;
+    
+    public DelegatedPipelineBiome(Biome biome) {
+        this.biome = biome;
+    }
+    
+    @Override
+    public Biome getBiome() {
+        return biome;
+    }
+    
+    @Override
+    public int hashCode() {
+        return biome.hashCode();
+    }
+    
+    @Override
+    public boolean equals(Object obj) {
+        if(!(obj instanceof DelegatedPipelineBiome that)) return false;
+        return that.biome.equals(this.biome);
+    }
+    
+    @Override
+    public Set<String> getTags() {
+        return biome.getTags();
+    }
+    
+    @Override
+    public String getID() {
+        return biome.getID();
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/api/biome/PipelineBiome.java

@@ -0,0 +1,35 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.api.biome;
+
+import java.util.Set;
+
+import com.dfsek.terra.api.registry.key.StringIdentifiable;
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+public interface PipelineBiome extends StringIdentifiable {
+    Biome getBiome();
+    
+    static PipelineBiome placeholder(String id) {
+        return new PlaceholderPipelineBiome(id);
+    }
+    
+    static PipelineBiome from(Biome biome) {
+        return new DelegatedPipelineBiome(biome);
+    }
+    
+    static PipelineBiome self() {
+        return SelfPipelineBiome.INSTANCE;
+    }
+    
+    Set<String> getTags();
+    
+    default boolean isPlaceholder() {
+        return false;
+    }
+    
+    default boolean isSelf() {
+        return false;
+    }
+    
+    
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/api/biome/PlaceholderPipelineBiome.java

@@ -0,0 +1,51 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.api.biome;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+final class PlaceholderPipelineBiome implements PipelineBiome {
+    private final Set<String> tags;
+    private final String id;
+    
+    public PlaceholderPipelineBiome(String id) {
+        this.id = id;
+        tags = new HashSet<>();
+        tags.add(id);
+        tags.add("ALL");
+    }
+    
+    @Override
+    public Biome getBiome() {
+        throw new UnsupportedOperationException("Cannot get raw biome from placeholder pipeline biome");
+    }
+    
+    @Override
+    public Set<String> getTags() {
+        return tags;
+    }
+    
+    @Override
+    public String getID() {
+        return id;
+    }
+    
+    @Override
+    public boolean isPlaceholder() {
+        return true;
+    }
+    
+    @Override
+    public int hashCode() {
+        return id.hashCode();
+    }
+    
+    @Override
+    public boolean equals(Object obj) {
+        if(!(obj instanceof PlaceholderPipelineBiome that)) return false;
+        
+        return this.id.equals(that.id);
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/api/biome/SelfPipelineBiome.java

@@ -0,0 +1,40 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.api.biome;
+
+import java.util.Collections;
+import java.util.Set;
+
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+final class SelfPipelineBiome implements PipelineBiome {
+    public static final SelfPipelineBiome INSTANCE = new SelfPipelineBiome();
+    
+    private SelfPipelineBiome() {
+
+    }
+    
+    @Override
+    public Biome getBiome() {
+        throw new UnsupportedOperationException("Cannot get biome from self delegate");
+    }
+    
+    @Override
+    public boolean isSelf() {
+        return true;
+    }
+    
+    @Override
+    public boolean isPlaceholder() {
+        return true;
+    }
+    
+    @Override
+    public Set<String> getTags() {
+        return Collections.emptySet();
+    }
+    
+    @Override
+    public String getID() {
+        return "SELF";
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/config/BiomePipelineTemplate.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2.config;
+
+import com.dfsek.tectonic.api.config.template.annotations.Default;
+import com.dfsek.tectonic.api.config.template.annotations.Description;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import java.util.List;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.PipelineBiomeProvider;
+import com.dfsek.terra.addons.biome.pipeline.v2.pipeline.PipelineImpl;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Source;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
+
+
+@SuppressWarnings({ "FieldMayBeFinal", "unused" })
+public class BiomePipelineTemplate implements ObjectTemplate<BiomeProvider> {
+    @Value("resolution")
+    @Default
+    @Description("""
+                 The resolution at which to sample biomes.
+                 
+                 Larger values are quadratically faster, but produce lower quality results.
+                 For example, a value of 3 would sample every 3 blocks.""")
+    protected @Meta int resolution = 1;
+    
+    @Value("pipeline.source")
+    @Description("The Biome Source to use for initial population of biomes.")
+    private @Meta Source source;
+    
+    @Value("pipeline.stages")
+    @Description("A list of pipeline stages to apply to the result of #source")
+    private @Meta List<@Meta Stage> stages;
+    
+    @Value("blend.sampler")
+    @Default
+    @Description("A sampler to use for blending the edges of biomes via domain warping.")
+    protected @Meta NoiseSampler blendSampler = NoiseSampler.zero();
+    
+    @Value("blend.amplitude")
+    @Default
+    @Description("The amplitude at which to perform blending.")
+    protected @Meta double blendAmplitude = 0d;
+    
+    @Override
+    public BiomeProvider get() {
+        return new PipelineBiomeProvider(new PipelineImpl(source, stages, resolution, 128), resolution, blendSampler, blendAmplitude);
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/config/PipelineBiomeLoader.java

@@ -0,0 +1,32 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.config;
+
+import com.dfsek.tectonic.api.depth.DepthTracker;
+import com.dfsek.tectonic.api.exception.LoadException;
+import com.dfsek.tectonic.api.loader.ConfigLoader;
+import com.dfsek.tectonic.api.loader.type.TypeLoader;
+import org.jetbrains.annotations.NotNull;
+
+import java.lang.reflect.AnnotatedType;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.dfsek.terra.api.registry.Registry;
+import com.dfsek.terra.api.world.biome.Biome;
+
+
+public class PipelineBiomeLoader implements TypeLoader<PipelineBiome> {
+    private final Registry<Biome> biomeRegistry;
+    
+    public PipelineBiomeLoader(Registry<Biome> biomeRegistry) {
+        this.biomeRegistry = biomeRegistry;
+    }
+    
+    @Override
+    public PipelineBiome load(@NotNull AnnotatedType t, @NotNull Object c, @NotNull ConfigLoader loader, DepthTracker depthTracker)
+    throws LoadException {
+        if(c.equals("SELF")) return PipelineBiome.self();
+        return biomeRegistry
+                .getByID((String) c)
+                .map(PipelineBiome::from)
+                .orElseGet(() -> PipelineBiome.placeholder((String) c));
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/config/source/SamplerSourceTemplate.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2.config.source;
+
+import com.dfsek.tectonic.api.config.template.annotations.Description;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Source;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.dfsek.terra.addons.biome.pipeline.v2.source.SamplerSource;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+
+
+public class SamplerSourceTemplate extends SourceTemplate {
+    @Value("sampler")
+    @Description("The sampler used to distribute biomes.")
+    private @Meta NoiseSampler noise;
+    
+    @Value("biomes")
+    @Description("The biomes to be distributed.")
+    private @Meta ProbabilityCollection<@Meta PipelineBiome> biomes;
+    
+    @Override
+    public Source get() {
+        return new SamplerSource(biomes, noise);
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/config/source/SourceTemplate.java

@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2.config.source;
+
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Source;
+
+
+public abstract class SourceTemplate implements ObjectTemplate<Source> {
+
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/config/stage/StageTemplate.java

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2.config.stage;
+
+import com.dfsek.tectonic.api.config.template.annotations.Description;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.noise.NoiseSampler;
+
+
+public abstract class StageTemplate implements ObjectTemplate<Stage> {
+    @Value("sampler")
+    @Description("Sampler to use for stage distribution.")
+    protected @Meta NoiseSampler noise;
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/config/stage/expander/ExpanderStageTemplate.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2.config.stage.expander;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.config.stage.StageTemplate;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Expander;
+import com.dfsek.terra.addons.biome.pipeline.v2.stage.expander.FractalExpander;
+
+
+public class ExpanderStageTemplate extends StageTemplate {
+    @Override
+    public Expander get() {
+        return new FractalExpander(noise);
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/config/stage/mutator/BorderListStageTemplate.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2.config.stage.mutator;
+
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import java.util.Map;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.config.stage.StageTemplate;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.dfsek.terra.addons.biome.pipeline.v2.stage.mutators.BorderListStage;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+
+
+@SuppressWarnings("unused")
+public class BorderListStageTemplate extends StageTemplate {
+    @Value("from")
+    private @Meta String from;
+    
+    @Value("default-replace")
+    private @Meta String defaultReplace;
+    
+    @Value("default-to")
+    private @Meta ProbabilityCollection<@Meta PipelineBiome> defaultTo;
+    
+    @Value("replace")
+    private @Meta Map<@Meta PipelineBiome, @Meta ProbabilityCollection<@Meta PipelineBiome>> replace;
+    
+    
+    @Override
+    public Stage get() {
+        return new BorderListStage(replace, from, defaultReplace, noise, defaultTo);
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/config/stage/mutator/BorderStageTemplate.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2.config.stage.mutator;
+
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.config.stage.StageTemplate;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.dfsek.terra.addons.biome.pipeline.v2.stage.mutators.BorderStage;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+
+
+@SuppressWarnings("unused")
+public class BorderStageTemplate extends StageTemplate {
+    @Value("from")
+    private @Meta String from;
+    
+    @Value("replace")
+    private @Meta String replace;
+    
+    @Value("to")
+    private @Meta ProbabilityCollection<@Meta PipelineBiome> to;
+    
+    @Override
+    public Stage get() {
+        return new BorderStage(from, replace, noise, to);
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/config/stage/mutator/ReplaceListStageTemplate.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2.config.stage.mutator;
+
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import java.util.Map;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.config.stage.StageTemplate;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.dfsek.terra.addons.biome.pipeline.v2.stage.mutators.ReplaceListStage;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+
+
+@SuppressWarnings("unused")
+public class ReplaceListStageTemplate extends StageTemplate {
+    @Value("default-from")
+    private @Meta String defaultFrom;
+    
+    @Value("default-to")
+    private @Meta ProbabilityCollection<@Meta PipelineBiome> defaultTo;
+    
+    @Value("to")
+    private @Meta Map<@Meta PipelineBiome, @Meta ProbabilityCollection<@Meta PipelineBiome>> replace;
+    
+    @Override
+    public Stage get() {
+        return new ReplaceListStage(replace, defaultFrom, defaultTo, noise);
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/config/stage/mutator/ReplaceStageTemplate.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2.config.stage.mutator;
+
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.config.stage.StageTemplate;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.dfsek.terra.addons.biome.pipeline.v2.stage.mutators.ReplaceStage;
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+
+
+@SuppressWarnings("unused")
+public class ReplaceStageTemplate extends StageTemplate {
+    @Value("from")
+    private @Meta String from;
+    
+    @Value("to")
+    private @Meta ProbabilityCollection<@Meta PipelineBiome> to;
+    
+    @Override
+    public Stage get() {
+        return new ReplaceStage(from, to, noise);
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/config/stage/mutator/SmoothStageTemplate.java

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2.config.stage.mutator;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.config.stage.StageTemplate;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.v2.stage.mutators.SmoothStage;
+
+
+public class SmoothStageTemplate extends StageTemplate {
+    @Override
+    public Stage get() {
+        return new SmoothStage(noise);
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/pipeline/BiomeChunkImpl.java

@@ -0,0 +1,217 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.pipeline;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.BiomeChunk;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Expander;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.SeededVector;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import net.jafama.FastMath;
+
+import java.util.List;
+
+
+public class BiomeChunkImpl implements BiomeChunk {
+    
+    private PipelineBiome[][] biomes;
+    private final SeededVector worldOrigin;
+    private final int chunkOriginArrayIndex;
+    private final int worldCoordinateScale;
+    
+    public BiomeChunkImpl(SeededVector worldOrigin, PipelineImpl pipeline) {
+        
+        this.worldOrigin = worldOrigin;
+        this.chunkOriginArrayIndex = pipeline.getChunkOriginArrayIndex();
+        this.worldCoordinateScale = pipeline.getResolution();
+        
+        int size = pipeline.getArraySize();
+        
+        int expanderCount = pipeline.getExpanderCount();
+        int expansionsApplied = 0;
+        
+        // Allocate working arrays
+        this.biomes = new PipelineBiome[size][size];
+        PipelineBiome[][] lookupArray = new PipelineBiome[size][size];
+        // A second lookup array is required such that stage application doesn't affect lookups, otherwise application may cascade
+        
+        // Construct working grid
+        int gridOrigin = 0;
+        int gridInterval = calculateGridInterval(expanderCount, expansionsApplied);
+        int gridSize = (size / gridInterval);
+        gridSize += expanderCount > 0 ? 1 : 0; // Add an extra border if expansion occurs
+        
+        // Fill working grid with initial cells
+        for(int gridX = 0; gridX < gridSize; gridX++) {
+            for(int gridZ = 0; gridZ < gridSize; gridZ++) {
+                int xIndex = gridOrigin + gridX * gridInterval;
+                int zIndex = gridOrigin + gridZ * gridInterval;
+                biomes[xIndex][zIndex] = pipeline.getSource().get(worldOrigin.seed(), xIndexToWorldCoordinate(xIndex), zIndexToWorldCoordinate(zIndex));
+            }
+        }
+        
+        for(Stage stage : pipeline.getStages()) {
+            if(stage instanceof Expander) {
+                // Shrink working grid size, the expander will fill in null cells (as a result of shrinking the grid) during mutation
+                expansionsApplied++;
+                gridInterval = calculateGridInterval(expanderCount, expansionsApplied);
+                gridSize = expandSize(gridSize);
+            }
+            
+            int stageReadDistance = stage.maxRelativeReadDistance();
+            if(stageReadDistance > 0) {
+                // Discard edges such that adjacent lookups are only ran on valid cells
+                gridSize = contractBordersFromSize(gridSize, stageReadDistance);
+                gridOrigin += stageReadDistance * gridInterval;
+            }
+            
+            // Cycle arrays, the previously populated array is swapped to be used for lookups, and the result of the stage application
+            // overwrites the previous lookup array. This saves having to allocate a new array copy each time
+            PipelineBiome[][] tempArray = biomes;
+            biomes = lookupArray;
+            lookupArray = tempArray;
+            
+            // Apply stage to working grid
+            for(int gridZ = 0; gridZ < gridSize; gridZ = gridZ + 1) {
+                for(int gridX = 0; gridX < gridSize; gridX = gridX + 1) {
+                    int xIndex = gridOrigin + gridX * gridInterval;
+                    int zIndex = gridOrigin + gridZ * gridInterval;
+                    biomes[xIndex][zIndex] = stage.apply(new ViewPoint(this, gridInterval, gridX, gridZ, xIndex, zIndex, lookupArray));
+                }
+            }
+        }
+    }
+    
+    @Override
+    public PipelineBiome get(int xInChunk, int zInChunk) {
+        int xIndex = xInChunk + chunkOriginArrayIndex;
+        int zIndex = zInChunk + chunkOriginArrayIndex;
+        return biomes[xIndex][zIndex];
+    }
+    
+    private int xIndexToWorldCoordinate(int xIndex) {
+        return (worldOrigin.x() + xIndex - chunkOriginArrayIndex) * worldCoordinateScale;
+    }
+    
+    private int zIndexToWorldCoordinate(int zIndex) {
+        return (worldOrigin.z() + zIndex - chunkOriginArrayIndex) * worldCoordinateScale;
+    }
+    
+    protected static int initialSizeToArraySize(int expanderCount, int initialSize) {
+        int size = initialSize;
+        for(int i = 0; i < expanderCount; i++) {
+            size = expandSize(size);
+        }
+        return size;
+    }
+    
+    protected static int calculateChunkOriginArrayIndex(int totalExpanderCount, List<Stage> stages) {
+        int finalGridOrigin = calculateFinalGridOrigin(totalExpanderCount, stages);
+        int initialGridInterval = calculateGridInterval(totalExpanderCount, 0);
+        
+        // Round the final grid origin up to the nearest multiple of initialGridInterval, such that each
+        // chunk samples points on the same overall grid.
+        // Without this, shared chunk borders (required because of adjacent cell reads) will not be identical
+        // because points would be sampled on grids at different offsets, resulting in artifacts at borders.
+        return FastMath.ceilToInt((double) finalGridOrigin / initialGridInterval) * initialGridInterval;
+    }
+    
+    private static int calculateFinalGridOrigin(int totalExpanderCount, List<Stage> stages) {
+        int gridOrigin = 0;
+        int expansionsApplied = 0;
+        int gridInterval = calculateGridInterval(totalExpanderCount, expansionsApplied);
+        for (Stage stage : stages) {
+            if (stage instanceof Expander) {
+                expansionsApplied++;
+                gridInterval = calculateGridInterval(totalExpanderCount, expansionsApplied);
+            }
+            gridOrigin += stage.maxRelativeReadDistance() * gridInterval;
+        }
+        return gridOrigin;
+    }
+    
+    protected static int calculateChunkSize(int arraySize, int chunkOriginArrayIndex, int totalExpanderCount) {
+        return contractBordersFromSize(arraySize, chunkOriginArrayIndex) - (totalExpanderCount > 0 ? 1 : 0);
+    }
+    
+    private static int expandSize(int size) {
+        return size * 2 - 1;
+    }
+    
+    private static int contractBordersFromSize(int size, int border) {
+        return size - border * 2;
+    }
+    
+    private static int calculateGridInterval(int totalExpansions, int expansionsApplied) {
+        return 1 << (totalExpansions - expansionsApplied);
+    }
+    
+    private SeededVector getOrigin() {
+        return worldOrigin;
+    }
+    
+    /**
+     * Represents a point on the operating grid within the biomes array
+     */
+    public static class ViewPoint {
+        private final BiomeChunkImpl chunk;
+        private final PipelineBiome biome;
+        private final int gridInterval;
+        private final int gridX;
+        private final int gridZ;
+        private final int xIndex;
+        private final int zIndex;
+        private final PipelineBiome[][] lookupArray;
+        
+        private ViewPoint(BiomeChunkImpl chunk, int gridInterval, int gridX, int gridZ, int xIndex, int zIndex, PipelineBiome[][] lookupArray) {
+            this.chunk = chunk;
+            this.gridInterval = gridInterval;
+            this.gridX = gridX;
+            this.gridZ = gridZ;
+            this.xIndex = xIndex;
+            this.zIndex = zIndex;
+            this.lookupArray = lookupArray;
+            this.biome = lookupArray[xIndex][zIndex];
+        }
+        
+        public PipelineBiome getRelativeBiome(int x, int z) {
+            int lookupXIndex = this.xIndex + x * gridInterval;
+            int lookupZIndex = this.zIndex + z * gridInterval;
+            return lookupArray[lookupXIndex][lookupZIndex];
+        }
+        
+        public PipelineBiome getBiome() {
+            return biome;
+        }
+        
+        /**
+         * @return X position of the point relative to the operating grid
+         */
+        public int gridX() {
+            return gridX;
+        }
+        
+        /**
+         * @return Z position of the point relative to the operating grid
+         */
+        public int gridZ() {
+            return gridZ;
+        }
+        
+        /**
+         * @return X position of the point in the world
+         */
+        public int worldX() {
+            return chunk.xIndexToWorldCoordinate(xIndex);
+        }
+        
+        /**
+         * @return Z position of the point in the world
+         */
+        public int worldZ() {
+            return chunk.zIndexToWorldCoordinate(zIndex);
+        }
+        
+        public long worldSeed() {
+            return chunk.getOrigin().seed();
+        }
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/pipeline/PipelineImpl.java

@@ -0,0 +1,92 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.pipeline;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.List;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.BiomeChunk;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Expander;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Pipeline;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.SeededVector;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Source;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+
+
+public class PipelineImpl implements Pipeline {
+    
+    private static final Logger logger = LoggerFactory.getLogger(PipelineImpl.class);
+    
+    private final Source source;
+    private final List<Stage> stages;
+    private final int chunkSize;
+    private final int expanderCount;
+    private final int arraySize;
+    private final int chunkOriginArrayIndex;
+    private final int resolution;
+    
+    public PipelineImpl(Source source, List<Stage> stages, int resolution, int idealChunkArraySize) {
+        this.source = source;
+        this.stages = stages;
+        this.resolution = resolution;
+        this.expanderCount = (int) stages.stream().filter(s -> s instanceof Expander).count();
+        
+        // Optimize for the ideal array size
+        int arraySize;
+        int chunkOriginArrayIndex;
+        int chunkSize;
+        int initialSize = 1;
+        while (true) {
+            arraySize = BiomeChunkImpl.initialSizeToArraySize(expanderCount, initialSize);
+            chunkOriginArrayIndex = BiomeChunkImpl.calculateChunkOriginArrayIndex(expanderCount, stages);
+            chunkSize = BiomeChunkImpl.calculateChunkSize(arraySize, chunkOriginArrayIndex, expanderCount);
+            if (chunkSize > 1 && arraySize >= idealChunkArraySize) break;
+            initialSize++;
+        }
+        
+        this.arraySize = arraySize;
+        this.chunkOriginArrayIndex = chunkOriginArrayIndex;
+        this.chunkSize = chunkSize;
+    
+        logger.debug("Initialized a new biome pipeline:");
+        logger.debug("Array size: {} (Target: {})", arraySize, idealChunkArraySize);
+        logger.debug("Internal array origin: {}", chunkOriginArrayIndex);
+        logger.debug("Chunk size: {}", chunkSize);
+    }
+    
+    @Override
+    public BiomeChunk generateChunk(SeededVector worldCoordinates) {
+        return new BiomeChunkImpl(worldCoordinates, this);
+    }
+    
+    @Override
+    public int getChunkSize() {
+        return chunkSize;
+    }
+    
+    @Override
+    public Source getSource() {
+        return source;
+    }
+    
+    @Override
+    public List<Stage> getStages() {
+        return stages;
+    }
+    
+    protected int getExpanderCount() {
+        return expanderCount;
+    }
+    
+    protected int getArraySize() {
+        return arraySize;
+    }
+    
+    protected int getChunkOriginArrayIndex() {
+        return chunkOriginArrayIndex;
+    }
+    
+    protected int getResolution() {
+        return resolution;
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/source/SamplerSource.java

@@ -0,0 +1,27 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.source;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Source;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+
+
+public class SamplerSource implements Source {
+    private final ProbabilityCollection<PipelineBiome> biomes;
+    private final NoiseSampler sampler;
+    
+    public SamplerSource(ProbabilityCollection<PipelineBiome> biomes, NoiseSampler sampler) {
+        this.biomes = biomes;
+        this.sampler = sampler;
+    }
+    
+    @Override
+    public PipelineBiome get(long seed, int x, int z) {
+        return biomes.get(sampler, x, z, seed);
+    }
+    
+    @Override
+    public Iterable<PipelineBiome> getBiomes() {
+        return biomes.getContents();
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/source/SingleSource.java

@@ -0,0 +1,27 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.source;
+
+import java.util.Collections;
+import java.util.Set;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Source;
+
+
+public class SingleSource implements Source {
+    
+    private final PipelineBiome biome;
+    
+    public SingleSource(PipelineBiome biome) {
+        this.biome = biome;
+    }
+    
+    @Override
+    public PipelineBiome get(long seed, int x, int z) {
+        return biome;
+    }
+    
+    @Override
+    public Set<PipelineBiome> getBiomes() {
+        return Collections.singleton(biome);
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/stage/expander/FractalExpander.java

@@ -0,0 +1,37 @@
+package com.dfsek.terra.addons.biome.pipeline.v2.stage.expander;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Expander;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.dfsek.terra.addons.biome.pipeline.v2.pipeline.BiomeChunkImpl;
+import com.dfsek.terra.api.noise.NoiseSampler;
+
+
+public class FractalExpander implements Expander {
+    
+    private final NoiseSampler sampler;
+    
+    public FractalExpander(NoiseSampler sampler) {
+        this.sampler = sampler;
+    }
+    
+    @Override
+    public PipelineBiome fillBiome(BiomeChunkImpl.ViewPoint viewPoint) {
+
+        int xMod2 = viewPoint.gridX() % 2;
+        int zMod2 = viewPoint.gridZ() % 2;
+        
+        double roll = sampler.noise(viewPoint.worldSeed(), viewPoint.worldX(), viewPoint.worldZ());
+        
+        if (xMod2 == 1 && zMod2 == 0) { // Pick one of 2 neighbors on X axis randomly
+            return roll > 0 ? viewPoint.getRelativeBiome(-1, 0) : viewPoint.getRelativeBiome(1, 0);
+            
+        } else if (xMod2 == 0 && zMod2 == 1) { // Pick one of 2 neighbors on Z axis randomly
+            return roll > 0 ? viewPoint.getRelativeBiome(0, -1) : viewPoint.getRelativeBiome(0, 1);
+            
+        } else { // Pick one of 4 corners randomly
+            return roll > 0 ?
+                   roll >  0.25 ? viewPoint.getRelativeBiome(-1, 1) : viewPoint.getRelativeBiome(1, 1) :
+                   roll > -0.25 ? viewPoint.getRelativeBiome(-1, -1) : viewPoint.getRelativeBiome(1, -1);
+        }
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/stage/mutators/BorderListStage.java

@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2.stage.mutators;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.Predicate;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.dfsek.terra.addons.biome.pipeline.v2.pipeline.BiomeChunkImpl;
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+import com.dfsek.terra.api.util.vector.Vector2Int;
+
+
+public class BorderListStage implements Stage {
+    private final String border;
+    private final NoiseSampler noiseSampler;
+    private final ProbabilityCollection<PipelineBiome> replaceDefault;
+    private final String defaultReplace;
+    private final Map<PipelineBiome, ProbabilityCollection<PipelineBiome>> replace;
+    
+    private final Vector2Int[] borderPoints;
+    
+    public BorderListStage(Map<PipelineBiome, ProbabilityCollection<PipelineBiome>> replace, String border, String defaultReplace,
+                           NoiseSampler noiseSampler, ProbabilityCollection<PipelineBiome> replaceDefault) {
+        this.border = border;
+        this.noiseSampler = noiseSampler;
+        this.replaceDefault = replaceDefault;
+        this.defaultReplace = defaultReplace;
+        this.replace = replace;
+    
+        List<Vector2Int> points = new ArrayList<>();
+        for(int x = -1; x <= 1; x++) {
+            for(int z = -1; z <= 1; z++) {
+                if(x == 0 && z == 0) continue;
+                points.add(Vector2Int.of(x, z));
+            }
+        }
+        this.borderPoints = points.toArray(new Vector2Int[0]);
+        
+    }
+    
+    @Override
+    public Iterable<PipelineBiome> getBiomes(Iterable<PipelineBiome> biomes) {
+        Set<PipelineBiome> biomeSet = new HashSet<>();
+        biomes.forEach(biomeSet::add);
+        biomeSet.addAll(replaceDefault.getContents().stream().filter(Predicate.not(PipelineBiome::isSelf)).toList());
+        replace.forEach((biome, collection) -> biomeSet.addAll(collection.getContents()));
+        return biomeSet;
+    }
+    
+    @Override
+    public PipelineBiome apply(BiomeChunkImpl.ViewPoint viewPoint) {
+        PipelineBiome center = viewPoint.getBiome();
+        if(center.getTags().contains(defaultReplace)) {
+            for(Vector2Int point : borderPoints) {
+                PipelineBiome current = viewPoint.getRelativeBiome(point.getX(), point.getZ());
+                if(current != null && current.getTags().contains(border)) {
+                    if(replace.containsKey(center)) {
+                        PipelineBiome replacement = replace.get(center).get(noiseSampler, viewPoint.worldX(), viewPoint.worldZ(),
+                                                                      viewPoint.worldSeed());
+                        return replacement.isSelf() ? center : replacement;
+                    }
+                    PipelineBiome replacement = replaceDefault.get(noiseSampler, viewPoint.worldX(), viewPoint.worldZ(), viewPoint.worldSeed());
+                    return replacement.isSelf() ? center : replacement;
+                }
+            }
+        }
+        return center;
+    }
+    
+    @Override
+    public int maxRelativeReadDistance() {
+        return 1;
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/stage/mutators/BorderStage.java

@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2.stage.mutators;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.function.Predicate;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.dfsek.terra.addons.biome.pipeline.v2.pipeline.BiomeChunkImpl;
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+import com.dfsek.terra.api.util.vector.Vector2Int;
+
+
+public class BorderStage implements Stage {
+    private final String border;
+    private final NoiseSampler noiseSampler;
+    private final ProbabilityCollection<PipelineBiome> replace;
+    private final String replaceTag;
+    private final Vector2Int[] borderPoints;
+    
+    public BorderStage(String border, String replaceTag, NoiseSampler noiseSampler, ProbabilityCollection<PipelineBiome> replace) {
+        this.border = border;
+        this.noiseSampler = noiseSampler;
+        this.replace = replace;
+        this.replaceTag = replaceTag;
+        List<Vector2Int> points = new ArrayList<>();
+        for(int x = -1; x <= 1; x++) {
+            for(int z = -1; z <= 1; z++) {
+                if(x == 0 && z == 0) continue;
+                points.add(Vector2Int.of(x, z));
+            }
+        }
+        this.borderPoints = points.toArray(new Vector2Int[0]);
+    }
+    
+    @Override
+    public PipelineBiome apply(BiomeChunkImpl.ViewPoint viewPoint) {
+        PipelineBiome center = viewPoint.getBiome();
+        if(center.getTags().contains(replaceTag)) {
+            for(Vector2Int point : borderPoints) {
+                PipelineBiome current = viewPoint.getRelativeBiome(point.getX(), point.getZ());
+                if(current != null && current.getTags().contains(border)) {
+                    PipelineBiome replacement = replace.get(noiseSampler, viewPoint.worldX(), viewPoint.worldZ(), viewPoint.worldSeed());
+                    return replacement.isSelf() ? center : replacement;
+                }
+            }
+        }
+        return center;
+    }
+    
+    @Override
+    public Iterable<PipelineBiome> getBiomes(Iterable<PipelineBiome> biomes) {
+        Set<PipelineBiome> biomeSet = new HashSet<>();
+        biomes.forEach(biomeSet::add);
+        biomeSet.addAll(
+                replace
+                        .getContents()
+                        .stream()
+                        .filter(
+                                Predicate.not(PipelineBiome::isSelf)
+                               )
+                        .toList()
+                       );
+        return biomeSet;
+    }
+    
+    @Override
+    public int maxRelativeReadDistance() {
+        return 1;
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/stage/mutators/ReplaceListStage.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2.stage.mutators;
+
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Stream;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.dfsek.terra.addons.biome.pipeline.v2.pipeline.BiomeChunkImpl;
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+
+
+public class ReplaceListStage implements Stage {
+    private final Map<PipelineBiome, ProbabilityCollection<PipelineBiome>> replace;
+    private final NoiseSampler sampler;
+    private final ProbabilityCollection<PipelineBiome> replaceDefault;
+    private final String defaultTag;
+    
+    public ReplaceListStage(Map<PipelineBiome, ProbabilityCollection<PipelineBiome>> replace, String defaultTag,
+                            ProbabilityCollection<PipelineBiome> replaceDefault, NoiseSampler sampler) {
+        this.replace = replace;
+        this.sampler = sampler;
+        this.defaultTag = defaultTag;
+        this.replaceDefault = replaceDefault;
+    }
+    
+    @Override
+    public PipelineBiome apply(BiomeChunkImpl.ViewPoint viewPoint) {
+        PipelineBiome center = viewPoint.getBiome();
+        if(replace.containsKey(center)) {
+            PipelineBiome biome = replace.get(center).get(sampler, viewPoint.worldX(), viewPoint.worldZ(), viewPoint.worldSeed());
+            return biome.isSelf() ? viewPoint.getBiome() : biome;
+        }
+        if(viewPoint.getBiome().getTags().contains(defaultTag)) {
+            PipelineBiome biome = replaceDefault.get(sampler, viewPoint.worldX(), viewPoint.worldZ(), viewPoint.worldSeed());
+            return biome.isSelf() ? viewPoint.getBiome() : biome;
+        }
+        return center;
+    }
+    
+    @Override
+    public int maxRelativeReadDistance() {
+        return 0;
+    }
+    
+    @Override
+    public Iterable<PipelineBiome> getBiomes(Iterable<PipelineBiome> biomes) {
+        Set<PipelineBiome> biomeSet = new HashSet<>();
+        
+        Set<PipelineBiome> reject = new HashSet<>();
+        
+        biomes.forEach(biome -> {
+            if(!biome.getTags().contains(defaultTag) && !replace.containsKey(biome)) {
+                biomeSet.add(biome);
+            } else {
+                reject.add(biome);
+            }
+        });
+        biomeSet.addAll(replaceDefault.getContents().stream().flatMap(terraBiome -> {
+            if(terraBiome.isSelf()) return reject.stream();
+            return Stream.of(terraBiome);
+        }).toList());
+        replace.forEach((biome, collection) -> biomeSet.addAll(collection.getContents().stream().map(terraBiome -> {
+            if(terraBiome.isSelf()) return biome;
+            return terraBiome;
+        }).toList()));
+        return biomeSet;
+    }
+}

common/addons/biome-provider-pipeline-v2/src/main/java/com/dfsek/terra/addons/biome/pipeline/v2/stage/mutators/ReplaceStage.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.biome.pipeline.v2.stage.mutators;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.stream.Stream;
+
+import com.dfsek.terra.addons.biome.pipeline.v2.api.Stage;
+import com.dfsek.terra.addons.biome.pipeline.v2.api.biome.PipelineBiome;
+import com.dfsek.terra.addons.biome.pipeline.v2.pipeline.BiomeChunkImpl;
+import com.dfsek.terra.api.noise.NoiseSampler;
+import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+
+
+public class ReplaceStage implements Stage {
+    private final String replaceableTag;
+    private final ProbabilityCollection<PipelineBiome> replace;
+    private final NoiseSampler sampler;
+    
+    public ReplaceStage(String replaceable, ProbabilityCollection<PipelineBiome> replace, NoiseSampler sampler) {
+        this.replaceableTag = replaceable;
+        this.replace = replace;
+        this.sampler = sampler;
+    }
+    
+    @Override
+    public PipelineBiome apply(BiomeChunkImpl.ViewPoint viewPoint) {
+        if(viewPoint.getBiome().getTags().contains(replaceableTag)) {
+            PipelineBiome biome = replace.get(sampler, viewPoint.worldX(), viewPoint.worldZ(), viewPoint.worldSeed());
+            return biome.isSelf() ? viewPoint.getBiome() : biome;
+        }
+        return viewPoint.getBiome();
+    }
+    
+    @Override
+    public int maxRelativeReadDistance() {
+        return 0;
+    }
+    
+    @Override
+    public Iterable<PipelineBiome> getBiomes(Iterable<PipelineBiome> biomes) {
+        Set<PipelineBiome> biomeSet = new HashSet<>();
+        Set<PipelineBiome> reject = new HashSet<>();
+        biomes.forEach(biome -> {
+            if(!biome.getTags().contains(replaceableTag)) {
+                biomeSet.add(biome);
+            } else {
+                reject.add(biome);
+            }
+        });
+        biomeSet.addAll(replace.getContents().stream().flatMap(terraBiome -> {
+            if(terraBiome.isSelf()) return reject.stream();
+            return Stream.of(terraBiome);
+        }).toList());
+        return biomeSet;
+    }
+}