Initial commit

2026-03-12 19:48:20 +01:00
commit 7c9c5b8ab1
32 changed files with 1488 additions and 0 deletions
--- a/.editorconfig
+++ b/.editorconfig
@@ -0,0 +1,29 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+tab_width = 4
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.gradle.kts]
+indent_style = tab
+
+[*.java]
+indent_style = tab
+
+[*.json]
+indent_style = space
+indent_size = 2
+
+[fabric.mod.json]
+indent_style = tab
+tab_width = 2
+
+[*.properties]
+indent_style = space
+indent_size = 2
--- a/.gitattributes
+++ b/.gitattributes
@@ -0,0 +1,5 @@
+* text=auto eol=lf
+gradlew text eol=lf
+*.bat text eol=crlf
+*.cmd text eol=crlf
+gradle-wrapper.jar -text -diff -merge -filter
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -0,0 +1,38 @@
+name: build
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: checkout repository
+        uses: actions/checkout@v6
+
+      - name: cache gradle
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            gradle-${{ runner.os }}-
+
+      - name: setup jdk
+        uses: actions/setup-java@v5
+        with:
+          java-version: 21
+          distribution: temurin
+
+      - name: make gradle wrapper executable
+        run: chmod +x ./gradlew
+
+      - name: build
+        run: ./gradlew build --no-daemon -x test
+
+      - name: upload artifacts
+        uses: actions/upload-artifact@v3
+        with:
+          name: artifacts
+          path: build/libs/
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,8 @@
+.gradle/
+.idea/
+.vscode/
+bin/
+build/
+out/
+run/
+run-server/
--- a/121
+++ b/121
@@ -0,0 +1,121 @@
+Creative Commons Legal Code
+
+CC0 1.0 Universal
+
+    CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
+    LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
+    ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
+    INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
+    REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
+    PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
+    THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
+    HEREUNDER.
+
+Statement of Purpose
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+limitation commercial, advertising or promotional purposes (the
+"License"). The License shall be deemed effective as of the date CC0 was
+applied by Affirmer to the Work. Should any part of the License for any
+reason be judged legally invalid or ineffective under applicable law, such
+partial invalidity or ineffectiveness shall not invalidate the remainder
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+express Statement of Purpose.
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+4. Limitations and Disclaimers.
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+ a. No trademark or patent rights held by Affirmer are waived, abandoned,
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+    infringement, or the absence of latent or other defects, accuracy, or
+    the present or absence of errors, whether or not discoverable, all to
+    the greatest extent permissible under applicable law.
+ c. Affirmer disclaims responsibility for clearing rights of other persons
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+ d. Affirmer understands and acknowledges that Creative Commons is not a
+    party to this document and has no duty or obligation with respect to
+    this CC0 or use of the Work.
--- a/README.md
+++ b/README.md
@@ -0,0 +1,39 @@
+# Example Mod
+
+Template for making Babric mods for BTA!
+
+**Note: *DO NOT fork this repository unless you want to contribute!***
+
+## Prerequisites
+- JDK for Java 21 ([Eclipse Temurin](https://adoptium.net/temurin/releases/) recommended)
+- [Intellij IDEA](https://www.jetbrains.com/idea/download/) (Scroll down for the free community edition, if using linux **DO NOT** use the flatpak distribution)
+- Minecraft Development plugin (Optional, but highly recommended)
+
+## Setup instructions
+   
+
+1. Click the `Use this template` button on this repo's page above (Will only appear if logged in). Choose `Create a new repository`, you will be redirected to a new page. Enter your repo's name and description, and hit `Create repository`.  
+   To get your project, open IntelliJ IDEA and click `Clone Repository` (`Get from VCS` on older versions). Select `Repository URL` and enter your repo's url
+
+2. After the project has finished importing, close it and open it again.  
+   If that does not work, open the right sidebar with `Gradle` on it, open `Tasks` > `fabric` and run `ideaSyncTask`.
+
+3. Create a new run configuration by going in `Run > Edit Configurations`.  
+   Then click on the plus icon and select Gradle. In the `Tasks and Arguments` field enter `build`.  
+   Running it will build your finished jar files and put them in `build/libs/`.
+
+4. Lastly, open `File` > `Settings` and head to `Build, Execution, Development` > `Build Tools` > `Gradle`.  
+   Make sure `Build and run using` and `Run tests using` is set to `Gradle`.
+
+5. Done! Now, all that's left is to change every mention of `quetzal` and `ciomek` to your own mod id and mod group, respectively. Happy modding!
+
+## Tips
+
+1. If you quetzal't already you should join the BTA modding discord! https://discord.gg/FTUNJhswBT
+2. You can set your username when launching the client run configuration by setting `--username <username>` in your program arguments.
+3. When launching the server run configuration you may want to remove the `nogui` program argument in order to see the regular server GUI.
+4. In Intellij you can double press shift or press ctrl+N to search class files, change the search from the default `Project Files` to `All Places` you can easily explore the classes for your dependencies and even BTA itself.
+5. In Intellij if ctrl+left-click on a field or method you can quickly get information on when and where that field or method is assign or used.
+6. Ensure IntelliJ is updated to the latest version. This is important because this template uses the latest Gradle version and if your IntelliJ installation is outdated, it may not support the latest version.
+7. In the `quetzal.mixins.json` you'll see `"compatibilityLevel": "JAVA_${java}",` along with an error message from the `Minecraft Development` plugin stating `Cannot resolve compatibility level 'JAVA_${java}'`. You can safely ignore this. The Gradle build system has been set up to grab the Java version from your `gradle.properties` and replace `${java}` with it. So the compiled binary will properly have it as `JAVA_8`.
+
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -0,0 +1,128 @@
+import com.smushytaco.lwjgl_gradle.Preset
+plugins {
+	alias(libs.plugins.loom)
+	alias(libs.plugins.lwjgl)
+    java
+}
+val modVersion: Provider<String> = providers.gradleProperty("mod_version")
+val modGroup: Provider<String> = providers.gradleProperty("mod_group")
+val modName: Provider<String> = providers.gradleProperty("mod_name")
+
+val javaVersion: Provider<Int> = libs.versions.java.map { it.toInt() }
+
+base.archivesName = modName
+group = modGroup.get()
+version = modVersion.get()
+loom {
+    customMinecraftMetadata.set("https://downloads.betterthanadventure.net/bta-client/${libs.versions.btaChannel.get()}/v${libs.versions.bta.get()}/manifest.json")
+}
+repositories {
+    mavenCentral()
+    maven("https://maven.fabricmc.net/") { name = "Fabric" }
+    maven("https://maven.thesignalumproject.net/infrastructure") { name = "SignalumMavenInfrastructure" }
+    maven("https://maven.thesignalumproject.net/releases") { name = "SignalumMavenReleases" }
+    ivy("https://github.com/Better-than-Adventure") {
+        patternLayout { artifact("[organisation]/releases/download/[revision]/[module]-bta-[revision].jar") }
+        metadataSources { artifact() }
+    }
+    ivy("https://downloads.betterthanadventure.net/bta-client/${libs.versions.btaChannel.get()}/") {
+        patternLayout { artifact("/v[revision]/client.jar") }
+        metadataSources { artifact() }
+    }
+    ivy("https://downloads.betterthanadventure.net/bta-server/${libs.versions.btaChannel.get()}/") {
+        patternLayout { artifact("/v[revision]/server.jar") }
+        metadataSources { artifact() }
+    }
+    ivy("https://piston-data.mojang.com") {
+        patternLayout { artifact("v1/[organisation]/[revision]/[module].jar") }
+        metadataSources { artifact() }
+    }
+}
+lwjgl {
+	version = libs.versions.lwjgl
+	implementation(Preset.MINIMAL_OPENGL)
+}
+dependencies {
+    minecraft("::${libs.versions.bta.get()}")
+
+	runtimeOnly(libs.clientJar)
+	implementation(libs.loader)
+	// If you do not need Halplibe you can comment out or delete this line.
+	implementation(libs.halplibe)
+	implementation(libs.modMenu)
+	implementation(libs.legacyLwjgl)
+
+	implementation(libs.slf4jApi)
+	implementation(libs.guava)
+	implementation(libs.log4j.slf4j2.impl)
+	implementation(libs.log4j.core)
+	implementation(libs.log4j.api)
+	implementation(libs.log4j.api12)
+	implementation(libs.gson)
+
+	implementation(libs.commonsLang3)
+	include(libs.commonsLang3)
+}
+java {
+	toolchain {
+		languageVersion = javaVersion.map { JavaLanguageVersion.of(it) }
+		vendor = JvmVendorSpec.ADOPTIUM
+	}
+	sourceCompatibility = JavaVersion.toVersion(javaVersion.get())
+	targetCompatibility = JavaVersion.toVersion(javaVersion.get())
+	withSourcesJar()
+}
+val licenseFile = run {
+	val rootLicense = layout.projectDirectory.file("LICENSE")
+	val parentLicense = layout.projectDirectory.file("../LICENSE")
+	when {
+		rootLicense.asFile.exists() -> {
+			logger.lifecycle("Using LICENSE from project root: {}", rootLicense.asFile)
+			rootLicense
+		}
+		parentLicense.asFile.exists() -> {
+			logger.lifecycle("Using LICENSE from parent directory: {}", parentLicense.asFile)
+			parentLicense
+		}
+		else -> {
+			logger.warn("No LICENSE file found in project or parent directory.")
+			null
+		}
+	}
+}
+tasks {
+	withType<JavaCompile>().configureEach {
+		options.encoding = "UTF-8"
+		sourceCompatibility = javaVersion.get().toString()
+		targetCompatibility = javaVersion.get().toString()
+		if (javaVersion.get() > 8) options.release = javaVersion
+	}
+	named<UpdateDaemonJvm>("updateDaemonJvm") {
+		languageVersion = libs.versions.gradleJava.map { JavaLanguageVersion.of(it.toInt()) }
+		vendor = JvmVendorSpec.ADOPTIUM
+	}
+	withType<JavaExec>().configureEach { defaultCharacterEncoding = "UTF-8" }
+	withType<Javadoc>().configureEach { options.encoding = "UTF-8" }
+	withType<Test>().configureEach { defaultCharacterEncoding = "UTF-8" }
+	withType<Jar>().configureEach {
+		licenseFile?.let {
+			from(it) {
+				rename { original -> "${original}_${archiveBaseName.get()}" }
+			}
+		}
+	}
+	processResources {
+		val resourceMap = mapOf(
+			"version" to modVersion.get(),
+			"fabricloader" to libs.versions.loader.get(),
+			"halplibe" to libs.versions.halplibe.get(),
+			"java" to libs.versions.java.get(),
+			"modmenu" to libs.versions.modMenu.get()
+		)
+		inputs.properties(resourceMap)
+		filesMatching("fabric.mod.json") { expand(resourceMap) }
+		filesMatching("**/*.mixins.json") { expand(resourceMap.filterKeys { it == "java" }) }
+	}
+}
+// Removes LWJGL2 dependencies
+configurations.configureEach { exclude(group = "org.lwjgl.lwjgl") }
--- a/gradle.properties
+++ b/gradle.properties
@@ -0,0 +1,18 @@
+##########################################################################
+# Standard Properties
+org.gradle.jvmargs = -Xmx6G
+org.gradle.warning.mode = all
+# This currently has to be set to false because the "Minecraft Client" and "Minecraft Server" configurations generated
+# by IntelliJ aren't currently compatible with the configuration cache. If you use the runClient and runServer Gradle
+# tasks instead, then this can (and should) be set to true.
+org.gradle.configuration-cache = false
+##########################################################################
+# Mod Properties
+mod_version = 0.1.0
+mod_group = ciomek
+mod_name = quetzal
+##########################################################################
+# Plugin Dependency
+# Check this on https://plugins.gradle.org/plugin/org.gradle.toolchains.foojay-resolver-convention/
+foojay_resolver_version = 1.0.0
+##########################################################################
--- a/gradle/gradle-daemon-jvm.properties
+++ b/gradle/gradle-daemon-jvm.properties
@@ -0,0 +1,13 @@
+#This file is generated by updateDaemonJvm
+toolchainUrl.FREE_BSD.AARCH64=https\://api.foojay.io/disco/v3.0/ids/df211d3c3eefdc408b462041881bc575/redirect
+toolchainUrl.FREE_BSD.X86_64=https\://api.foojay.io/disco/v3.0/ids/b41931cf1e70bc8e08d7dd19c343ef00/redirect
+toolchainUrl.LINUX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/df211d3c3eefdc408b462041881bc575/redirect
+toolchainUrl.LINUX.X86_64=https\://api.foojay.io/disco/v3.0/ids/93aeea858331bd6bb00ba94759830234/redirect
+toolchainUrl.MAC_OS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/46949723aaa20c7b64d7ecfed7207034/redirect
+toolchainUrl.MAC_OS.X86_64=https\://api.foojay.io/disco/v3.0/ids/f636c800fdb3f9ae33f019dfa048ba72/redirect
+toolchainUrl.UNIX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/df211d3c3eefdc408b462041881bc575/redirect
+toolchainUrl.UNIX.X86_64=https\://api.foojay.io/disco/v3.0/ids/b41931cf1e70bc8e08d7dd19c343ef00/redirect
+toolchainUrl.WINDOWS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/3cd7045fca9a72cd9bc7d14a385e594c/redirect
+toolchainUrl.WINDOWS.X86_64=https\://api.foojay.io/disco/v3.0/ids/552c7bffe0370c66410a51c55985b511/redirect
+toolchainVendor=ADOPTIUM
+toolchainVersion=21
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -0,0 +1,62 @@
+[versions]
+##########################################################################
+# Plugins
+# Check this on https://github.com/FabricMC/fabric-loom/releases/latest/
+loom = "1.15-SNAPSHOT"
+# Check this on https://plugins.gradle.org/plugin/com.smushytaco.lwjgl3/
+lwjglPlugin = "1.0.2"
+##########################################################################
+# Java Configuration
+# The Java version the JDK will be for compiling and running code.
+java = "8"
+# The Java version the JDK will be for running Gradle.
+gradleJava = "21"
+##########################################################################
+# Mod Dependencies
+# Check this on https://downloads.betterthanadventure.net/bta-client/
+bta = "7.3_04"
+# Options are release, prerelease, nightly, and misc.
+btaChannel = "release"
+# Check this on https://maven.thesignalumproject.net/#/infrastructure/net/fabricmc/fabric-loader/
+loader = "0.18.4-bta.10"
+# Check this on https://github.com/Turnip-Labs/ModMenu/releases/latest/
+modMenu = "4.0.0"
+# Check this on https://github.com/Turnip-Labs/bta-halplibe/releases/latest/
+halplibe = "5.4.0"
+# Check this on https://github.com/Better-than-Adventure/legacy-lwjgl3/releases/latest/
+legacyLwjgl = "1.0.6"
+##########################################################################
+# Dependencies
+# Check this on https://central.sonatype.com/artifact/org.slf4j/slf4j-api/
+slf4jApi = "2.0.17"
+# Check this on https://central.sonatype.com/artifact/com.google.guava/guava/
+guava = "33.5.0-jre"
+# Check this on https://central.sonatype.com/artifact/org.apache.logging.log4j/log4j-api/
+log4j = "2.20.0"
+# Check this on https://central.sonatype.com/artifact/com.google.code.gson/gson/
+gson = "2.13.2"
+# Check this on https://central.sonatype.com/artifact/org.apache.commons/commons-lang3/
+commonsLang3 = "3.20.0"
+# This should match the version used by the current BTA release.
+lwjgl = "3.3.3"
+##########################################################################
+
+[libraries]
+loader = { group = "net.fabricmc", name = "fabric-loader", version.ref = "loader" }
+halplibe = { group = "turniplabs", name = "halplibe", version.ref = "halplibe" }
+modMenu = { group = "turniplabs", name = "modmenu-bta", version.ref = "modMenu" }
+legacyLwjgl = { group = "legacy-lwjgl3", name = "legacy-lwjgl3", version.ref = "legacyLwjgl" }
+slf4jApi = { group = "org.slf4j", name = "slf4j-api", version.ref = "slf4jApi" }
+guava = { group = "com.google.guava", name = "guava", version.ref = "guava" }
+log4j-slf4j2-impl = { group = "org.apache.logging.log4j", name = "log4j-slf4j2-impl", version.ref = "log4j" }
+log4j-core = { group = "org.apache.logging.log4j", name = "log4j-core", version.ref = "log4j" }
+log4j-api = { group = "org.apache.logging.log4j", name = "log4j-api", version.ref = "log4j" }
+log4j-api12 = { group = "org.apache.logging.log4j", name = "log4j-1.2-api", version.ref = "log4j" }
+gson = { group = "com.google.code.gson", name = "gson", version.ref = "gson" }
+commonsLang3 = { group = "org.apache.commons", name = "commons-lang3", version.ref = "commonsLang3" }
+# https://piston-data.mojang.com/v1/objects/43db9b498cb67058d2e12d394e6507722e71bb45/client.jar
+clientJar = { group = "objects", name = "client", version = "43db9b498cb67058d2e12d394e6507722e71bb45" }
+
+[plugins]
+loom = { id = "net.fabricmc.fabric-loom", version.ref = "loom" }
+lwjgl = { id = "com.smushytaco.lwjgl3", version.ref = "lwjglPlugin" }
--- a/gradle/wrapper/gradle-wrapper.jar
+++ b/gradle/wrapper/gradle-wrapper.jar
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,8 @@
+# Check this on https://gradle.org/releases/
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-all.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
--- a/248
+++ b/248
@@ -0,0 +1,248 @@
+#!/bin/sh
+
+#
+# Copyright © 2015 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -0,0 +1,93 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -0,0 +1,59 @@
+val modName: Provider<String> = providers.gradleProperty("mod_name")
+rootProject.name = modName.get()
+pluginManagement {
+	fun isRepoHealthy(url: String): Boolean {
+		var connection: javax.net.ssl.HttpsURLConnection? = null
+		return try {
+			connection = java.net.URI(url).toURL().openConnection() as javax.net.ssl.HttpsURLConnection
+			connection.requestMethod = "HEAD"
+			connection.connectTimeout = 2000
+			connection.readTimeout = 2000
+			connection.instanceFollowRedirects = true
+			connection.connect()
+			val code = connection.responseCode
+			code in 200..399
+		} catch (_: Exception) {
+			false
+		} finally {
+			connection?.disconnect()
+		}
+	}
+	fun repoUrlWithFallbacks(candidates: List<String>): String {
+		if (candidates.isEmpty()) {
+			val badLink = "https://mock.httpstatus.io/500"
+			logger.error("No repositories have been provided. Defaulting to: {}", badLink)
+			return badLink
+		}
+		val chosenRepository = candidates.firstOrNull { isRepoHealthy(it) } ?: run {
+			if (candidates.size == 1) {
+				logger.error("\"{}\" could not be resolved.", candidates.first())
+			} else {
+				logger.error("All {} repositories could not be resolved. Defaulting to: {}", candidates.size, candidates.first())
+			}
+			return candidates.first()
+		}
+		logger.lifecycle("Using \"{}\" as the Fabric repository.", chosenRepository)
+		return chosenRepository
+	}
+	repositories {
+		maven(
+			repoUrlWithFallbacks(
+				listOf(
+					"https://maven.fabricmc.net",
+					"https://maven2.fabricmc.net",
+					"https://maven3.fabricmc.net"
+				)
+			)
+		) { name = "Fabric" }
+		maven("https://maven.thesignalumproject.net/infrastructure") { name = "SignalumMavenInfrastructure" }
+		mavenCentral()
+		gradlePluginPortal()
+	}
+	val foojayResolverVersion = providers.gradleProperty("foojay_resolver_version")
+	plugins {
+		id("org.gradle.toolchains.foojay-resolver-convention").version(foojayResolverVersion.get())
+	}
+}
+plugins {
+	id("org.gradle.toolchains.foojay-resolver-convention")
+}
--- a/src/main/java/ciomek/quetzal/IWorldUtils.java
+++ b/src/main/java/ciomek/quetzal/IWorldUtils.java
@@ -0,0 +1,21 @@
+package ciomek.quetzal;
+
+import ciomek.quetzal.teleport.TeleportRequest;
+import ciomek.quetzal.tick.TickTimer;
+import net.minecraft.core.entity.player.Player;
+import net.minecraft.core.world.World;
+
+import java.util.List;
+import java.util.function.Consumer;
+
+public interface IWorldUtils {
+	void addTickCallback(int delayTicks, Consumer<World> callback);
+
+	void addRequestToTeleportTo(Player sender, Player receiver);
+	void addRequestToTeleportFrom(Player sender, Player receiver);
+
+	List<TeleportRequest> getPendingRequests(Player receiver);
+	TeleportRequest getNewestRequest(Player receiver);
+
+	TickTimer getTickTimer();
+}
--- a/src/main/java/ciomek/quetzal/Quetzal.java
+++ b/src/main/java/ciomek/quetzal/Quetzal.java
@@ -0,0 +1,39 @@
+package ciomek.quetzal;
+
+import ciomek.quetzal.commands.HomeCommand;
+import ciomek.quetzal.commands.TeleportAcceptCommand;
+import ciomek.quetzal.commands.TeleportCommand;
+import ciomek.quetzal.commands.TeleportDeclineCommand;
+import net.fabricmc.api.ModInitializer;
+import net.minecraft.core.net.command.CommandManager;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import turniplabs.halplibe.util.GameStartEntrypoint;
+import turniplabs.halplibe.util.RecipeEntrypoint;
+
+public class Quetzal implements ModInitializer, RecipeEntrypoint, GameStartEntrypoint {
+	public static final String MOD_ID = "quetzal";
+	public static final Logger LOGGER = LoggerFactory.getLogger(MOD_ID);
+
+	@Override
+	public void onInitialize() {
+		LOGGER.info("quetzal initialized.");
+
+		CommandManager.registerCommand(new TeleportCommand());
+		CommandManager.registerCommand(new TeleportAcceptCommand());
+		CommandManager.registerCommand(new TeleportDeclineCommand());
+		CommandManager.registerCommand(new HomeCommand());
+	}
+
+	@Override
+	public void onRecipesReady() {}
+
+	@Override
+	public void initNamespaces() {}
+
+	@Override
+	public void beforeGameStart() {}
+
+	@Override
+	public void afterGameStart() {}
+}
--- a/src/main/java/ciomek/quetzal/Utils.java
+++ b/src/main/java/ciomek/quetzal/Utils.java
@@ -0,0 +1,32 @@
+package ciomek.quetzal;
+
+import ciomek.quetzal.tick.TickTimer;
+import net.minecraft.core.entity.player.Player;
+import net.minecraft.server.entity.player.PlayerServer;
+
+public class Utils {
+	public static void TeleportPlayer(Player fromPlayer, Player toPlayer, TickTimer timer)
+	{
+		double startX = round1(fromPlayer.x);
+		double startY = round1(fromPlayer.y);
+		double startZ = round1(fromPlayer.z);
+
+		fromPlayer.sendMessage("Teleporting home. Don't move for 5 seconds...");
+
+		timer.addTickTask(100, (world) -> {
+			if (round1(fromPlayer.x) != startX || round1(fromPlayer.y) != startY || round1(fromPlayer.z) != startZ) {
+				fromPlayer.sendMessage("Teleport cancelled because you moved.");
+				return;
+			}
+
+			((PlayerServer)fromPlayer).playerNetServerHandler.teleportAndRotate(toPlayer.x, toPlayer.y, toPlayer.z, toPlayer.yRot, toPlayer.xRot);
+
+			fromPlayer.sendMessage("Teleported to " + toPlayer.username + "!");
+			toPlayer.sendMessage(fromPlayer.username + " teleported to you!");
+		});
+	}
+
+	private static double round1(double value) {
+		return Math.round(value * 10.0) / 10.0;
+	}
+}
--- a/src/main/java/ciomek/quetzal/commands/HomeCommand.java
+++ b/src/main/java/ciomek/quetzal/commands/HomeCommand.java
@@ -0,0 +1,117 @@
+package ciomek.quetzal.commands;
+
+import ciomek.quetzal.IWorldUtils;
+import com.google.gson.Gson;
+import com.google.gson.reflect.TypeToken;
+import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.builder.ArgumentBuilderLiteral;
+import net.minecraft.core.entity.player.Player;
+import net.minecraft.core.net.command.CommandManager;
+import net.minecraft.core.net.command.CommandSource;
+import net.fabricmc.api.ModInitializer;
+import net.minecraft.server.entity.player.PlayerServer;
+
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.lang.reflect.Type;
+import java.util.HashMap;
+import java.util.Map;
+
+public class HomeCommand implements CommandManager.CommandRegistry, ModInitializer {
+	private static final Map<String, double[]> homes = new HashMap<>();
+	private static final Gson gson = new Gson();
+	private static final File homesFile = new File("homes.json");
+
+	@Override
+	public void onInitialize() {
+		loadHomes();
+	}
+
+	private void loadHomes() {
+		if (!homesFile.exists()) return;
+		try (FileReader reader = new FileReader(homesFile)) {
+			Type type = new TypeToken<Map<String, double[]>>(){}.getType();
+			Map<String, double[]> loaded = gson.fromJson(reader, type);
+			if (loaded != null) homes.putAll(loaded);
+		} catch (IOException e) {
+			System.err.println("Failed to load homes: " + e.getMessage());
+		}
+	}
+
+	private void saveHomes() {
+		try (FileWriter writer = new FileWriter(homesFile)) {
+			gson.toJson(homes, writer);
+		} catch (IOException e) {
+			System.err.println("Failed to save homes: " + e.getMessage());
+		}
+	}
+
+	@Override
+	public void register(CommandDispatcher<CommandSource> dispatcher) {
+		dispatcher.register(
+			ArgumentBuilderLiteral.<CommandSource>literal("sethome")
+				.executes(context -> {
+					CommandSource source = context.getSource();
+					Player player = source.getSender();
+
+					if (player == null) {
+						source.sendMessage("This command can only be run by a player!");
+						return 0;
+					}
+
+					homes.put(player.username, new double[]{player.x, player.y, player.z});
+					saveHomes();
+					player.sendMessage("Home set.");
+					return 1;
+				})
+		);
+
+		dispatcher.register(
+			ArgumentBuilderLiteral.<CommandSource>literal("home")
+				.executes(context -> {
+					CommandSource source = context.getSource();
+					Player player = source.getSender();
+
+					IWorldUtils worldUtils = (IWorldUtils) source.getWorld();
+
+					if (player == null) {
+						source.sendMessage("This command can only be run by a player!");
+						return 0;
+					}
+
+					if (!homes.containsKey(player.username)) {
+						homes.put(player.username, new double[]{player.x, player.y, player.z});
+						saveHomes();
+						player.sendMessage("Home was not set. Setting it to your current location.");
+						return 1;
+					}
+
+					double[] home = homes.get(player.username);
+
+					double startX = round1(player.x);
+					double startY = round1(player.y);
+					double startZ = round1(player.z);
+
+					player.sendMessage("Teleporting home. Don't move for 5 seconds...");
+
+					worldUtils.addTickCallback(100, (w) -> {
+						if (round1(player.x) != startX || round1(player.y) != startY || round1(player.z) != startZ) {
+							player.sendMessage("Teleport cancelled because you moved.");
+							return;
+						}
+
+						((PlayerServer)player).playerNetServerHandler.teleport(home[0], home[1], home[2]);
+						player.sendMessage("Teleported home.");
+					});
+
+					return 1;
+				})
+		);
+	}
+
+	private double round1(double value) {
+		return Math.round(value * 10.0) / 10.0;
+	}
+}
--- a/src/main/java/ciomek/quetzal/commands/TeleportAcceptCommand.java
+++ b/src/main/java/ciomek/quetzal/commands/TeleportAcceptCommand.java
@@ -0,0 +1,34 @@
+package ciomek.quetzal.commands;
+
+import ciomek.quetzal.IWorldUtils;
+import ciomek.quetzal.teleport.TeleportRequest;
+import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.builder.ArgumentBuilderLiteral;
+import net.minecraft.core.entity.player.Player;
+import net.minecraft.core.net.command.CommandManager;
+import net.minecraft.core.net.command.CommandSource;
+
+import static com.mojang.brigadier.builder.ArgumentBuilderLiteral.literal;
+
+public class TeleportAcceptCommand implements CommandManager.CommandRegistry {
+		@SuppressWarnings("unchecked")
+		@Override
+		public void register(CommandDispatcher<CommandSource> commandDispatcher) {
+			commandDispatcher
+				.register(
+					(ArgumentBuilderLiteral<CommandSource>) (Object) literal("tpa")
+							.executes(context -> {
+								CommandSource source = (CommandSource) context.getSource();
+								Player player = source.getSender();
+
+								IWorldUtils worldUtils = (IWorldUtils) source.getWorld();
+
+								TeleportRequest tpr = worldUtils.getNewestRequest(player);
+
+								tpr.accept(worldUtils.getTickTimer());
+
+								return 1;
+							})
+				);
+		}
+	}
--- a/src/main/java/ciomek/quetzal/commands/TeleportCommand.java
+++ b/src/main/java/ciomek/quetzal/commands/TeleportCommand.java
@@ -0,0 +1,92 @@
+package ciomek.quetzal.commands;
+
+import ciomek.quetzal.IWorldUtils;
+import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.builder.ArgumentBuilderLiteral;
+import com.mojang.brigadier.builder.ArgumentBuilderRequired;
+import net.minecraft.core.entity.Entity;
+import net.minecraft.core.entity.player.Player;
+import net.minecraft.core.net.command.CommandManager;
+import net.minecraft.core.net.command.CommandSource;
+import net.minecraft.core.net.command.arguments.ArgumentTypeEntity;
+import net.minecraft.core.net.command.helpers.EntitySelector;
+
+import static com.mojang.brigadier.builder.ArgumentBuilderLiteral.literal;
+
+public class TeleportCommand implements CommandManager.CommandRegistry {
+	@SuppressWarnings("unchecked")
+	@Override
+	public void register(CommandDispatcher<CommandSource> commandDispatcher) {
+		commandDispatcher
+			.register(
+				(ArgumentBuilderLiteral<CommandSource>) (Object) literal("tpr")
+					.then(
+						ArgumentBuilderRequired.argument("player", ArgumentTypeEntity.username())
+							.executes(context -> {
+								CommandSource source = (CommandSource) context.getSource();
+
+								EntitySelector entitySelector = context.getArgument("player", EntitySelector.class);
+
+								if (entitySelector.get(source).isEmpty()) {
+									source.sendMessage("None selected!");
+									return 0;
+								}
+
+								Entity entity = entitySelector.get(source).get(0);
+								Player target = (Player) entity;
+
+								Player player = source.getSender();
+								IWorldUtils worldUtils = (IWorldUtils) source.getWorld();
+
+								if (player == null) {
+									source.sendMessage("This command can only be run by a player!");
+									return 0;
+								}
+
+								worldUtils.addRequestToTeleportTo(player, target);
+
+								player.sendMessage("Sent request to " + target.username + ".");
+
+								target.sendMessage("Do you want " + target.username + " to teleport to you?");
+								return 1;
+							})
+					)
+			);
+
+		commandDispatcher
+			.register(
+				(ArgumentBuilderLiteral<CommandSource>) (Object) literal("tpfr")
+					.then(
+						ArgumentBuilderRequired.argument("player", ArgumentTypeEntity.username())
+							.executes(context -> {
+								CommandSource source = (CommandSource) context.getSource();
+
+								EntitySelector entitySelector = context.getArgument("player", EntitySelector.class);
+
+								if (entitySelector.get(source).isEmpty()) {
+									source.sendMessage("None selected!");
+									return 0;
+								}
+
+								Entity entity = entitySelector.get(source).get(0);
+								Player target = (Player) entity;
+
+								Player player = source.getSender();
+								IWorldUtils worldUtils = (IWorldUtils) source.getWorld();
+
+								if (player == null) {
+									source.sendMessage("This command can only be run by a player!");
+									return 0;
+								}
+
+								worldUtils.addRequestToTeleportFrom(player, target);
+
+								player.sendMessage("Sent request to " + target.username + ".");
+
+								target.sendMessage("Do you want to teleport to " + target.username + "?");
+								return 1;
+							})
+					)
+			);
+	}
+}
--- a/src/main/java/ciomek/quetzal/commands/TeleportDeclineCommand.java
+++ b/src/main/java/ciomek/quetzal/commands/TeleportDeclineCommand.java
@@ -0,0 +1,34 @@
+package ciomek.quetzal.commands;
+
+import ciomek.quetzal.IWorldUtils;
+import ciomek.quetzal.teleport.TeleportRequest;
+import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.builder.ArgumentBuilderLiteral;
+import net.minecraft.core.entity.player.Player;
+import net.minecraft.core.net.command.CommandManager;
+import net.minecraft.core.net.command.CommandSource;
+
+import static com.mojang.brigadier.builder.ArgumentBuilderLiteral.literal;
+
+public class TeleportDeclineCommand implements CommandManager.CommandRegistry {
+	@SuppressWarnings("unchecked")
+	@Override
+	public void register(CommandDispatcher<CommandSource> commandDispatcher) {
+		commandDispatcher
+			.register(
+				(ArgumentBuilderLiteral<CommandSource>) (Object) literal("tpd")
+					.executes(context -> {
+						CommandSource source = (CommandSource) context.getSource();
+						Player player = source.getSender();
+
+						IWorldUtils worldUtils = (IWorldUtils) source.getWorld();
+
+						TeleportRequest tpr = worldUtils.getNewestRequest(player);
+
+						tpr.decline();
+
+						return 1;
+					})
+			);
+	}
+}
--- a/src/main/java/ciomek/quetzal/mixin/WorldOverwriteMixin.java
+++ b/src/main/java/ciomek/quetzal/mixin/WorldOverwriteMixin.java
@@ -0,0 +1,76 @@
+package ciomek.quetzal.mixin;
+
+import ciomek.quetzal.IWorldUtils;
+import ciomek.quetzal.teleport.TeleportRequest;
+import ciomek.quetzal.teleport.TeleportToRequest;
+import ciomek.quetzal.tick.TickTimer;
+import net.minecraft.core.entity.player.Player;
+import net.minecraft.core.world.World;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import java.time.LocalDate;
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Objects;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+
+@Mixin(value = World.class, remap = false)
+public class WorldOverwriteMixin implements IWorldUtils {
+	@Unique
+	private final TickTimer tickTimer = new TickTimer();
+
+	@Unique
+	private final List<TeleportRequest> teleportRequests = new ArrayList<>();
+
+	@Override
+	public TickTimer getTickTimer()
+	{
+		return tickTimer;
+	}
+
+	@Override
+	public void addTickCallback(int delayTicks, Consumer<World> callback) {
+		tickTimer.addTickTask(delayTicks, callback);
+	}
+
+	@Inject(method = "tick", at = @At(value = "TAIL"))
+	public void tick(CallbackInfo ci) {
+		tickTimer.tick((World) (Object) this);
+	}
+
+	@Override
+	public void addRequestToTeleportTo(Player sender, Player receiver) {
+		TeleportRequest tpr = new TeleportToRequest(sender, receiver, LocalDate.now());
+
+		teleportRequests.add(tpr);
+	}
+
+	@Override
+	public void addRequestToTeleportFrom(Player sender, Player receiver) {
+		TeleportRequest tpr = new TeleportToRequest(sender, receiver, LocalDate.now());
+
+		teleportRequests.add(tpr);
+	}
+
+	@Override
+	public TeleportRequest getNewestRequest(Player receiver)
+	{
+		return teleportRequests.stream()
+			.filter(tr -> Objects.equals(tr.receiver, receiver))
+			.max(Comparator.comparing(tr -> tr.sentAt))
+			.orElse(null);
+	}
+
+	@Override
+	public List<TeleportRequest> getPendingRequests(Player receiver) {
+		return teleportRequests.stream()
+			.filter(tr -> Objects.equals(tr.receiver, receiver))
+			.collect(Collectors.toList());
+	}
+}
--- a/src/main/java/ciomek/quetzal/teleport/TeleportFromRequest.java
+++ b/src/main/java/ciomek/quetzal/teleport/TeleportFromRequest.java
@@ -0,0 +1,24 @@
+package ciomek.quetzal.teleport;
+
+import ciomek.quetzal.Utils;
+import ciomek.quetzal.tick.TickTimer;
+import net.minecraft.core.entity.player.Player;
+
+import java.time.LocalDate;
+
+public class TeleportFromRequest extends TeleportRequest {
+	public TeleportFromRequest(Player sender, Player receiver, LocalDate sentAt) {
+		super(sender, receiver, sentAt);
+	}
+
+	public void accept(TickTimer timer)
+	{
+		sender.sendMessage(receiver.username + " has accepted the teleportation request. ");
+		Utils.TeleportPlayer(receiver, sender, timer);
+	}
+
+	public void decline()
+	{
+		sender.sendMessage(receiver.username + " has declined the teleportation request. ");
+	}
+}
--- a/src/main/java/ciomek/quetzal/teleport/TeleportRequest.java
+++ b/src/main/java/ciomek/quetzal/teleport/TeleportRequest.java
@@ -0,0 +1,24 @@
+package ciomek.quetzal.teleport;
+
+import ciomek.quetzal.tick.TickTimer;
+import net.minecraft.core.entity.player.Player;
+
+import java.time.LocalDate;
+
+public abstract class TeleportRequest {
+	public Player sender;
+	public Player receiver;
+
+	public LocalDate sentAt;
+
+	public TeleportRequest(Player sender, Player receiver, LocalDate sentAt) {
+		this.sender = sender;
+		this.receiver = receiver;
+
+		this.sentAt = sentAt;
+	}
+
+	public abstract void accept(TickTimer timer);
+
+	public abstract void decline();
+}
--- a/src/main/java/ciomek/quetzal/teleport/TeleportToRequest.java
+++ b/src/main/java/ciomek/quetzal/teleport/TeleportToRequest.java
@@ -0,0 +1,24 @@
+package ciomek.quetzal.teleport;
+
+import ciomek.quetzal.Utils;
+import ciomek.quetzal.tick.TickTimer;
+import net.minecraft.core.entity.player.Player;
+
+import java.time.LocalDate;
+
+public class TeleportToRequest extends TeleportRequest {
+	public TeleportToRequest(Player sender, Player receiver, LocalDate sentAt) {
+		super(sender, receiver, sentAt);
+	}
+
+	public void accept(TickTimer timer)
+	{
+		sender.sendMessage(receiver.username + " has accepted the teleportation request. ");
+		Utils.TeleportPlayer(sender, receiver, timer);
+	}
+
+	public void decline()
+	{
+		sender.sendMessage(receiver.username + " has declined the teleportation request. ");
+	}
+}
--- a/src/main/java/ciomek/quetzal/tick/TickTask.java
+++ b/src/main/java/ciomek/quetzal/tick/TickTask.java
@@ -0,0 +1,15 @@
+package ciomek.quetzal.tick;
+
+import net.minecraft.core.world.World;
+
+import java.util.function.Consumer;
+
+public class TickTask {
+	public int ticksLeft;
+	public Consumer<World> callback;
+
+	public TickTask(int ticksLeft, Consumer<World> callback) {
+		this.ticksLeft = ticksLeft;
+		this.callback = callback;
+	}
+}
--- a/src/main/java/ciomek/quetzal/tick/TickTimer.java
+++ b/src/main/java/ciomek/quetzal/tick/TickTimer.java
@@ -0,0 +1,32 @@
+package ciomek.quetzal.tick;
+
+import net.minecraft.core.world.World;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.function.Consumer;
+
+public class TickTimer {
+
+	private final List<TickTask> tickTasks = new ArrayList<>();
+
+	public void addTickTask(int delayTicks, Consumer<World> callback) {
+		tickTasks.add(new TickTask(delayTicks, callback));
+	}
+
+	public void tick(World world) {
+		Iterator<TickTask> iterator = tickTasks.iterator();
+
+		while (iterator.hasNext()) {
+			TickTask task = iterator.next();
+
+			task.ticksLeft--;
+
+			if (task.ticksLeft <= 0) {
+				task.callback.accept(world);
+				iterator.remove();
+			}
+		}
+	}
+}
--- a/src/main/resources/fabric.mod.json
+++ b/src/main/resources/fabric.mod.json
@@ -0,0 +1,43 @@
+{
+	"schemaVersion": 1,
+	"id": "quetzal",
+	"version": "${version}",
+	"name": "Quetzal",
+	"description": "Basic stuff for servers.",
+	"authors": [
+		"ciomek"
+	],
+	"contact": {
+		"homepage": "",
+		"sources": ""
+	},
+	"icon": "icon.png",
+	"license": "CC0-1.0",
+	"environment": "*",
+	"entrypoints": {
+		"main": [
+			"ciomek.quetzal.Quetzal"
+		],
+		"beforeGameStart": [
+			"ciomek.quetzal.Quetzal"
+		],
+		"afterGameStart": [
+			"ciomek.quetzal.Quetzal"
+		],
+		"recipesReady": [
+			"ciomek.quetzal.Quetzal"
+		]
+	},
+	"mixins": [
+		"quetzal.mixins.json"
+	],
+	"depends": {
+		"fabricloader": ">=${fabricloader}",
+		"halplibe": ">=${halplibe}",
+		"minecraft": "*",
+		"java": ">=${java}"
+	},
+	"suggests": {
+		"modmenu": ">=${modmenu}"
+	}
+}
--- a/src/main/resources/icon.png
+++ b/src/main/resources/icon.png
--- a/src/main/resources/lang/quetzal/en_US.lang
+++ b/src/main/resources/lang/quetzal/en_US.lang
--- a/src/main/resources/quetzal.mixins.json
+++ b/src/main/resources/quetzal.mixins.json
@@ -0,0 +1,12 @@
+{
+  "required": true,
+  "package": "ciomek.quetzal.mixin",
+  "compatibilityLevel": "JAVA_${java}",
+  "injectors": {
+    "defaultRequire": 1
+  },
+  "mixins": [
+    "WorldOverwriteMixin"
+  ],
+  "client": []
+}