feat: reworked project structure, 1.20 to 1.21.1 mappings and more

.idea/gradle.xml

@@ -5,14 +5,16 @@
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleHome" value="/usr/share/java/gradle" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/api" />
-            <option value="$PROJECT_DIR$/common" />
             <option value="$PROJECT_DIR$/mappings" />
             <option value="$PROJECT_DIR$/mappings/v1_20" />
-            <option value="$PROJECT_DIR$/v1_20" />
+            <option value="$PROJECT_DIR$/mappings/v1_20_2" />
+            <option value="$PROJECT_DIR$/mappings/v1_20_4" />
+            <option value="$PROJECT_DIR$/mappings/v1_20_6" />
+            <option value="$PROJECT_DIR$/mappings/v1_21" />
           </set>
         </option>
       </GradleProjectSettings>

.idea/misc.xml

@@ -4,7 +4,7 @@
   <component name="PWA">
     <option name="wasEnabledAtLeastOnce" value="true" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" project-jdk-name="azul-17.0.10" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" project-jdk-name="graalvm-21.0.4" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

CHANGELOG.secret.log

@@ -1,16 +1,16 @@
-1.2.0: Update n°13 (XX/XX/24)
+1.2.0: Update n°12 (XX/XX/24)
     [FEATURES]
         - Players are now able to save disguises as presets.
+        - Modernized the messages and added various sound effects upon interacting with Nicko.
 
      [FIXES]
         - Fixed an oversight preventing the configuration from properly being migrated.
 
     [LANGUAGE]
         - Moved the prefix to the language file.
-        - Updated the language files to modernize the messages.
 
     [OTHER]
-        - Dropped the release candidate status as Nicko is now considered stable.
+        - Removed the ProtocolLib dependency, has Nicko being rewritten to use NMS until ProtocolLib has reworked its API.
 
 1.1.7-RC1: Hotfix n°5 (04/05/24)
     [OTHER]

api/build.gradle.kts

@@ -1,11 +0,0 @@
-plugins {
-    id("java")
-}
-
-java {
-    sourceCompatibility = JavaVersion.VERSION_21
-    targetCompatibility = JavaVersion.VERSION_21
-    toolchain {
-        languageVersion = JavaLanguageVersion.of(21)
-    }
-}

api/src/main/java/xyz/ineanto/nicko/api/NickoAPI.java

@@ -1,4 +0,0 @@
-package xyz.ineanto.nicko.api;
-
-public class NickoAPI {
-}

build.gradle.kts

@@ -1,6 +1,43 @@
 plugins {
     id("java")
-    id("io.github.goooler.shadow") version "8.1.7"
+    id("com.gradleup.shadow") version "8.3.2"
+    id("xyz.jpenilla.run-paper") version "2.3.0"
+}
+
+allprojects {
+    group = "xyz.ineanto.nicko"
+    version = "1.2.0"
+
+    apply(plugin = "java")
+    java {
+        sourceCompatibility = JavaVersion.VERSION_21
+        targetCompatibility = JavaVersion.VERSION_21
+        toolchain {
+            languageVersion = JavaLanguageVersion.of(21)
+        }
+    }
+
+    repositories {
+        mavenCentral()
+        mavenLocal()
+        maven { url = uri("https://jitpack.io") }
+        maven {
+            name = "xenondevs"
+            url = uri("https://repo.xenondevs.xyz/releases")
+        }
+        maven {
+            name = "papermc"
+            url = uri("https://repo.papermc.io/repository/maven-public/")
+        }
+        maven {
+            name = "codemc"
+            url = uri("https://repo.codemc.io/repository/maven-snapshots/")
+        }
+        maven {
+            name = "placeholderapi"
+            url = uri("https://repo.extendedclip.com/content/repositories/placeholderapi/")
+        }
+    }
 }
 
 java {
@@ -11,7 +48,98 @@ java {
     }
 }
 
-allprojects {
+dependencies {
-    group = "xyz.ineanto.nicko"
+    compileOnly("io.papermc.paper:paper-api:1.20.6-R0.1-SNAPSHOT")
-    version = "1.2.0"
+    compileOnly("com.github.dmulloy2:ProtocolLib:master-SNAPSHOT")
+    compileOnly("me.clip:placeholderapi:2.11.5")
+
+    implementation("net.kyori:adventure-api:4.17.0")
+    implementation("xyz.xenondevs.invui:invui:1.35")
+    implementation("net.wesjd:anvilgui:1.10.1-SNAPSHOT")
+    implementation("com.github.jsixface:yamlconfig:1.2")
+    implementation("com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:2.15.2")
+    implementation("com.fasterxml.jackson.core:jackson-core:2.15.2")
+    implementation("com.mysql:mysql-connector-j:8.2.0")
+    implementation("org.mariadb.jdbc:mariadb-java-client:3.3.1")
+    implementation("redis.clients:jedis:5.1.2")
+    implementation("com.google.code.gson:gson:2.10.1")
+    implementation("org.bstats:bstats-bukkit:3.0.2")
+
+    implementation(project(":mappings"))
+    subprojects.forEach {
+        if (!it.name.startsWith("v")) return@forEach
+
+        implementation(project(":mappings:${it.name}"))
+    }
+}
+
+tasks {
+    processResources {
+        from("src/main/resources")
+        duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+        filesMatching("*.yml") {
+            expand("version" to version)
+        }
+    }
+
+    shadowJar {
+        // NAMING
+        archiveBaseName.set("nicko")
+        archiveVersion.set(version.toString())
+        archiveAppendix.set("")
+        archiveClassifier.set("")
+
+        // RELOCATIONS
+        relocate("xyz.xenondevs", "xyz.ineanto.nicko.libs.invui")
+        relocate("me.clip", "xyz.ineanto.nicko.libs.placeholderapi")
+        relocate("net.wesjd", "xyz.ineanto.nicko.libs.anvilgui")
+        relocate("com.github.jsixface", "xyz.ineanto.nicko.libs.yaml")
+        relocate("com.fasterxml.jackson.dataformat", "xyz.ineanto.nicko.libs.jackson.yaml")
+        relocate("com.fasterxml.jackson.core", "xyz.ineanto.nicko.libs.jackson.core")
+        relocate("com.mysql", "xyz.ineanto.nicko.libs.mysql")
+        relocate("org.mariadb.jdbc", "xyz.ineanto.nicko.libs.mariadb")
+        relocate("redis.clients", "xyz.ineanto.nicko.libs.redis")
+        relocate("com.google.gson", "xyz.ineanto.nicko.libs.gson")
+        relocate("org.apache.commons.pool2", "xyz.ineanto.nicko.libs.pool2")
+        relocate("org.bstats", "xyz.ineanto.nicko.libs.bstats")
+
+        // EXCLUSIONS
+        exclude("colors.bin")
+        exclude("waffle/**")
+        exclude("com/sun/**")
+        exclude("com/google/protobuf/**")
+        exclude("com/google/errorprone/**")
+        exclude("org/apache/commons/logging/**")
+        exclude("org/jetbrains/**")
+        exclude("org/intellij/**")
+        exclude("org/checkerframework/**")
+        exclude("org/json/**")
+        exclude("org/slf4j/**")
+        exclude("org/yaml/**")
+        exclude("google/protobuf/**")
+        exclude("net/kyori/**")
+
+        // MINIFY
+        minimize {
+            exclude(dependency("xyz.xenondevs.invui:.*"))
+            exclude(dependency("net.wesjd:.*"))
+            exclude(dependency("org.bstats:.*"))
+        }
+    }
+
+    runServer {
+        dependsOn(shadowJar)
+
+        downloadPlugins {
+            url("https://download.luckperms.net/1554/bukkit/loader/LuckPerms-Bukkit-5.4.139.jar")
+
+            // 1.20 - 1.20.4 testing
+            //url("https://github.com/dmulloy2/ProtocolLib/releases/download/5.2.0/ProtocolLib.jar")
+
+            // 1.20.5 - latest testing
+            url("https://ci.dmulloy2.net/job/ProtocolLib/lastSuccessfulBuild/artifact/build/libs/ProtocolLib.jar")
+        }
+
+        minecraftVersion("1.21.1")
+    }
 }

common/build.gradle.kts

@@ -1,108 +0,0 @@
-plugins {
-    id("java")
-    id("xyz.jpenilla.run-paper") version "2.3.0"
-    id("io.github.goooler.shadow") version "8.1.7"
-}
-
-java {
-    sourceCompatibility = JavaVersion.VERSION_21
-    targetCompatibility = JavaVersion.VERSION_21
-    toolchain {
-        languageVersion = JavaLanguageVersion.of(21)
-    }
-}
-
-dependencies {
-    compileOnly("io.papermc.paper:paper-api:1.21.1-R0.1-SNAPSHOT")
-    compileOnly("com.github.dmulloy2:ProtocolLib:master-SNAPSHOT")
-    compileOnly("me.clip:placeholderapi:2.11.5")
-    compileOnly("net.kyori:adventure-api:4.17.0")
-
-    rootProject.subprojects.forEach {
-        if (!it.name.startsWith("v")) return@forEach
-
-        compileOnly(project(":mappings:${it.name}"))
-    }
-
-    implementation("xyz.xenondevs.invui:invui:1.35")
-    implementation("net.wesjd:anvilgui:1.10.1-SNAPSHOT")
-    implementation("com.github.jsixface:yamlconfig:1.2")
-    implementation("com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:2.15.2")
-    implementation("com.fasterxml.jackson.core:jackson-core:2.15.2")
-    implementation("com.mysql:mysql-connector-j:8.2.0")
-    implementation("org.mariadb.jdbc:mariadb-java-client:3.3.1")
-    implementation("redis.clients:jedis:5.1.2")
-    implementation("com.google.code.gson:gson:2.10.1")
-    implementation("org.bstats:bstats-bukkit:3.0.2")
-}
-
-tasks {
-    processResources {
-        from("src/main/resources")
-        duplicatesStrategy = DuplicatesStrategy.EXCLUDE
-        filesMatching("*.yml") {
-            expand("version" to version)
-        }
-    }
-
-    shadowJar {
-        // NAMING
-        archiveBaseName.set("nicko")
-        archiveVersion.set(version.toString())
-        archiveAppendix.set("")
-        archiveClassifier.set("")
-
-        // RELOCATIONS
-        relocate("xyz.xenondevs", "xyz.ineanto.nicko.libs.invui")
-        relocate("me.clip", "xyz.ineanto.nicko.libs.placeholderapi")
-        relocate("net.wesjd", "xyz.ineanto.nicko.libs.anvilgui")
-        relocate("com.github.jsixface", "xyz.ineanto.nicko.libs.yaml")
-        relocate("com.fasterxml.jackson.dataformat", "xyz.ineanto.nicko.libs.jackson.yaml")
-        relocate("com.fasterxml.jackson.core", "xyz.ineanto.nicko.libs.jackson.core")
-        relocate("com.mysql", "xyz.ineanto.nicko.libs.mysql")
-        relocate("org.mariadb.jdbc", "xyz.ineanto.nicko.libs.mariadb")
-        relocate("redis.clients", "xyz.ineanto.nicko.libs.redis")
-        relocate("com.google.gson", "xyz.ineanto.nicko.libs.gson")
-        relocate("org.apache.commons.pool2", "xyz.ineanto.nicko.libs.pool2")
-        relocate("org.bstats", "xyz.ineanto.nicko.libs.bstats")
-
-        // EXCLUSIONS
-        exclude("colors.bin")
-        exclude("waffle/**")
-        exclude("com/sun/**")
-        exclude("com/google/protobuf/**")
-        exclude("com/google/errorprone/**")
-        exclude("org/apache/commons/logging/**")
-        exclude("org/jetbrains/**")
-        exclude("org/intellij/**")
-        exclude("org/checkerframework/**")
-        exclude("org/json/**")
-        exclude("org/slf4j/**")
-        exclude("org/yaml/**")
-        exclude("google/protobuf/**")
-        exclude("net/kyori/**")
-
-        // MINIFY
-        minimize {
-            exclude(dependency("xyz.xenondevs.invui:.*"))
-            exclude(dependency("net.wesjd:.*"))
-            exclude(dependency("org.bstats:.*"))
-        }
-    }
-
-    runServer {
-        dependsOn(shadowJar)
-
-        downloadPlugins {
-            url("https://download.luckperms.net/1554/bukkit/loader/LuckPerms-Bukkit-5.4.139.jar")
-
-            // 1.20 - 1.20.4 testing
-            //url("https://github.com/dmulloy2/ProtocolLib/releases/download/5.2.0/ProtocolLib.jar")
-
-            // 1.20.5 - latest testing
-            url("https://ci.dmulloy2.net/job/ProtocolLib/lastSuccessfulBuild/artifact/build/libs/ProtocolLib.jar")
-        }
-
-        minecraftVersion("1.21.1")
-    }
-}

common/src/main/java/xyz/ineanto/nicko/mapping/Mapping.java

@@ -1,18 +0,0 @@
-package xyz.ineanto.nicko.mapping;
-
-import org.bukkit.entity.Player;
-import xyz.ineanto.nicko.Nicko;
-import xyz.ineanto.nicko.storage.PlayerDataStore;
-import xyz.ineanto.nicko.storage.name.PlayerNameStore;
-
-import java.util.Set;
-
-public abstract class Mapping {
-    private final Nicko instance = Nicko.getInstance();
-    private final PlayerDataStore dataStore = instance.getDataStore();
-    private final PlayerNameStore nameStore = instance.getNameStore();
-
-    public abstract void respawn(Player player);
-
-    public abstract Set<String> supportedVersions();
-}

common/src/main/java/xyz/ineanto/nicko/mapping/MappingManager.java

@@ -1,20 +0,0 @@
-package xyz.ineanto.nicko.mapping;
-
-import org.bukkit.Bukkit;
-import org.bukkit.Server;
-import xyz.ineanto.nicko.mapping.v1_20.Mapping1_20;
-
-import java.util.List;
-import java.util.Optional;
-
-public class MappingManager {
-    private final List<Mapping> mappings = List.of(
-            new Mapping1_20()
-    );
-
-    public Optional<Mapping> getMappingFor(Server server) {
-        return mappings.stream()
-                .filter(mapping -> mapping.supportedVersions().contains(Bukkit.getMinecraftVersion()))
-                .findFirst();
-    }
-}

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,7 @@
-#Mon Dec 11 00:36:17 CET 2023
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -55,7 +55,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       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/.
@@ -80,13 +80,11 @@ do
     esac
 done
 
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+# This is normally unused
-
+# shellcheck disable=SC2034
-APP_NAME="Gradle"
 APP_BASE_NAME=${0##*/}
-
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -133,22 +131,29 @@ location of your Java installation."
     fi
 else
     JAVACMD=java
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+    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 $MAX_FD"
     esac
@@ -193,11 +198,15 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
-# Collect all arguments for the java command;
+
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-#     shell script including quotes and variable substitutions, so put them in
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
-#     double quotes to make sure that they get re-expanded; and
+
-#   * put everything else in single quotes, so that it's not re-expanded.
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_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=$APP_BASE_NAME" \
@@ -205,6 +214,12 @@ set -- \
         org.gradle.wrapper.GradleWrapperMain \
         "$@"
 
+# 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.

gradlew.bat

@@ -26,6 +26,7 @@ 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%
 
@@ -40,13 +41,13 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+if %ERRORLEVEL% equ 0 goto execute
 
-echo.
+echo. 1>&2
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
-echo.
+echo. 1>&2
-echo Please set the JAVA_HOME variable in your environment to match the
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
-echo location of your Java installation.
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -56,11 +57,11 @@ set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
 if exist "%JAVA_EXE%" goto execute
 
-echo.
+echo. 1>&2
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
-echo.
+echo. 1>&2
-echo Please set the JAVA_HOME variable in your environment to match the
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
-echo location of your Java installation.
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -75,13 +76,15 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 :end
 @rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+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!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+set EXIT_CODE=%ERRORLEVEL%
-exit /b 1
+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

mappings/DISCLAIMER.md

@@ -0,0 +1,10 @@
+For full transparency, the following project structure
+and code are __heavily__ inspired by SkinRestorer.
+I made some slight tweaking here and there, but credit where credit is due.
+
+```
+   SkinsRestorer Copyright (C) 2021-2024 SRTeam
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+```

mappings/build.gradle.kts

@@ -0,0 +1,7 @@
+plugins {
+    id("java")
+}
+
+dependencies {
+    compileOnly("io.papermc.paper:paper-api:1.20.6-R0.1-SNAPSHOT")
+}

mappings/src/main/java/xyz/ineanto/nicko/mapping/Mapping.java

@@ -0,0 +1,11 @@
+package xyz.ineanto.nicko.mapping;
+
+import org.bukkit.entity.Player;
+
+import java.util.Set;
+
+public abstract class Mapping {
+    public abstract void respawn(Player player);
+
+    public abstract Set<String> supportedVersions();
+}

mappings/v1_20/build.gradle.kts

@@ -5,5 +5,5 @@ plugins {
 
 dependencies {
     paperweight.paperDevBundle("1.20-R0.1-SNAPSHOT")
-    implementation(project(":common"))
+    compileOnly(project(":mappings"))
 }

mappings/v1_20/src/main/java/xyz/ineanto/nicko/mapping/v1_20/Mapping1_20.java

@@ -17,13 +17,9 @@ import java.util.List;
 import java.util.Set;
 
 public class Mapping1_20 extends Mapping {
+
     @Override
     public void respawn(Player player) {
-        final ServerPlayer entityPlayer = (ServerPlayer) player;
-
-        final ServerLevel world = entityPlayer.serverLevel();
-        final ServerPlayerGameMode gameMode = entityPlayer.gameMode;
-
         // Really Mojang...? (also applies to Bukkit/Spigot maintainers)
         // I'll have to do this everytime I want to update Nicko for the foreseeable future.
         // (until ProtocolLib has reworked its API to be more maintainable that said)
@@ -36,12 +32,18 @@ public class Mapping1_20 extends Mapping {
         // I can't be bothered with fighting your game anymore.
         // We need an easy and reliable way to send packets across multiple server versions.
         // And I know that this is easier said than done, the game protocol needs
-        // to evolve and be updated, I get it. But I think you can at least try.
+        // to evolve and be updated, I get it.
+        // But I think you can at least try.
 
         // You made a step forward by providing the mappings for Java, this I can agree with.
         // (and still stripped them from Bedrock against community feedback, haha f*ck you.)
         // However, we still need a stable and reliable Packet API (and so much more!) one day.
 
+        final ServerPlayer entityPlayer = (ServerPlayer) player;
+
+        final ServerLevel world = entityPlayer.serverLevel();
+        final ServerPlayerGameMode gameMode = entityPlayer.gameMode;
+
         final ClientboundRespawnPacket respawn = new ClientboundRespawnPacket(
                 world.dimensionTypeId(),
                 world.dimension(),
@@ -70,7 +72,6 @@ public class Mapping1_20 extends Mapping {
         playerList.sendLevelInfo(entityPlayer, world);
         playerList.sendAllPlayerInfo(entityPlayer);
 
-        // Resend their effects
         for (MobEffectInstance effect : entityPlayer.getActiveEffects()) {
             entityPlayer.connection.send(new ClientboundUpdateMobEffectPacket(entityPlayer.getId(), effect));
         }

mappings/v1_20_2/build.gradle.kts

@@ -0,0 +1,9 @@
+plugins {
+    id("java")
+    id("io.papermc.paperweight.userdev") version "1.7.2"
+}
+
+dependencies {
+    paperweight.paperDevBundle("1.20.2-R0.1-SNAPSHOT")
+    compileOnly(project(":mappings"))
+}

mappings/v1_20_2/src/main/java/xyz/ineanto/nicko/mapping/v1_20_2/Mapping1_20_2.java

@@ -0,0 +1,54 @@
+package xyz.ineanto.nicko.mapping.v1_20_2;
+
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoRemovePacket;
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket;
+import net.minecraft.network.protocol.game.ClientboundRespawnPacket;
+import net.minecraft.network.protocol.game.ClientboundUpdateMobEffectPacket;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.server.players.PlayerList;
+import net.minecraft.world.effect.MobEffectInstance;
+import org.bukkit.entity.Player;
+import xyz.ineanto.nicko.mapping.Mapping;
+
+import java.util.List;
+import java.util.Set;
+
+public class Mapping1_20_2 extends Mapping {
+
+    @Override
+    public void respawn(Player player) {
+        final ServerPlayer entityPlayer = (ServerPlayer) player;
+
+        final ServerLevel world = entityPlayer.serverLevel();
+
+        final ClientboundRespawnPacket respawn = new ClientboundRespawnPacket(
+                entityPlayer.createCommonSpawnInfo(world),
+                ClientboundRespawnPacket.KEEP_ALL_DATA
+        );
+
+        entityPlayer.connection.send(new ClientboundPlayerInfoRemovePacket(List.of(player.getUniqueId())));
+        entityPlayer.connection.send(ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(List.of(entityPlayer)));
+
+        entityPlayer.connection.send(respawn);
+
+        entityPlayer.onUpdateAbilities();
+        entityPlayer.connection.teleport(player.getLocation());
+
+        entityPlayer.resetSentInfo();
+
+        final PlayerList playerList = entityPlayer.server.getPlayerList();
+        playerList.sendPlayerPermissionLevel(entityPlayer);
+        playerList.sendLevelInfo(entityPlayer, world);
+        playerList.sendAllPlayerInfo(entityPlayer);
+
+        for (MobEffectInstance effect : entityPlayer.getActiveEffects()) {
+            entityPlayer.connection.send(new ClientboundUpdateMobEffectPacket(entityPlayer.getId(), effect));
+        }
+    }
+
+    @Override
+    public Set<String> supportedVersions() {
+        return Set.of("1.20.2", "1.20.3");
+    }
+}

mappings/v1_20_4/build.gradle.kts

@@ -0,0 +1,9 @@
+plugins {
+    id("java")
+    id("io.papermc.paperweight.userdev") version "1.7.2"
+}
+
+dependencies {
+    paperweight.paperDevBundle("1.20.4-R0.1-SNAPSHOT")
+    compileOnly(project(":mappings"))
+}

mappings/v1_20_4/src/main/java/xyz/ineanto/nicko/mapping/v1_20_4/Mapping1_20_4.java

@@ -0,0 +1,54 @@
+package xyz.ineanto.nicko.mapping.v1_20_4;
+
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoRemovePacket;
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket;
+import net.minecraft.network.protocol.game.ClientboundRespawnPacket;
+import net.minecraft.network.protocol.game.ClientboundUpdateMobEffectPacket;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.server.players.PlayerList;
+import net.minecraft.world.effect.MobEffectInstance;
+import org.bukkit.entity.Player;
+import xyz.ineanto.nicko.mapping.Mapping;
+
+import java.util.List;
+import java.util.Set;
+
+public class Mapping1_20_4 extends Mapping {
+
+    @Override
+    public void respawn(Player player) {
+        final ServerPlayer entityPlayer = (ServerPlayer) player;
+
+        final ServerLevel world = entityPlayer.serverLevel();
+
+        final ClientboundRespawnPacket respawn = new ClientboundRespawnPacket(
+                entityPlayer.createCommonSpawnInfo(world),
+                ClientboundRespawnPacket.KEEP_ALL_DATA
+        );
+
+        entityPlayer.connection.send(new ClientboundPlayerInfoRemovePacket(List.of(player.getUniqueId())));
+        entityPlayer.connection.send(ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(List.of(entityPlayer)));
+
+        entityPlayer.connection.send(respawn);
+
+        entityPlayer.onUpdateAbilities();
+        entityPlayer.connection.teleport(player.getLocation());
+
+        entityPlayer.resetSentInfo();
+
+        final PlayerList playerList = entityPlayer.server.getPlayerList();
+        playerList.sendPlayerPermissionLevel(entityPlayer);
+        playerList.sendLevelInfo(entityPlayer, world);
+        playerList.sendAllPlayerInfo(entityPlayer);
+
+        for (MobEffectInstance effect : entityPlayer.getActiveEffects()) {
+            entityPlayer.connection.send(new ClientboundUpdateMobEffectPacket(entityPlayer.getId(), effect));
+        }
+    }
+
+    @Override
+    public Set<String> supportedVersions() {
+        return Set.of("1.20.4", "1.20.5");
+    }
+}

mappings/v1_20_6/build.gradle.kts

@@ -0,0 +1,9 @@
+plugins {
+    id("java")
+    id("io.papermc.paperweight.userdev") version "1.7.2"
+}
+
+dependencies {
+    paperweight.paperDevBundle("1.20.6-R0.1-SNAPSHOT")
+    compileOnly(project(":mappings"))
+}

mappings/v1_20_6/src/main/java/xyz/ineanto/nicko/mapping/v1_20_6/Mapping1_20_6.java

@@ -0,0 +1,53 @@
+package xyz.ineanto.nicko.mapping.v1_20_6;
+
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoRemovePacket;
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket;
+import net.minecraft.network.protocol.game.ClientboundRespawnPacket;
+import net.minecraft.network.protocol.game.ClientboundUpdateMobEffectPacket;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.server.players.PlayerList;
+import net.minecraft.world.effect.MobEffectInstance;
+import org.bukkit.entity.Player;
+import xyz.ineanto.nicko.mapping.Mapping;
+
+import java.util.List;
+import java.util.Set;
+
+public class Mapping1_20_6 extends Mapping {
+
+    @Override
+    public void respawn(Player player) {
+        final ServerPlayer entityPlayer = (ServerPlayer) player;
+
+        final ServerLevel world = entityPlayer.serverLevel();
+        final ClientboundRespawnPacket respawn = new ClientboundRespawnPacket(
+                entityPlayer.createCommonSpawnInfo(world),
+                ClientboundRespawnPacket.KEEP_ALL_DATA
+        );
+
+        entityPlayer.connection.send(new ClientboundPlayerInfoRemovePacket(List.of(player.getUniqueId())));
+        entityPlayer.connection.send(ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(List.of(entityPlayer)));
+
+        entityPlayer.connection.send(respawn);
+
+        entityPlayer.onUpdateAbilities();
+        entityPlayer.connection.teleport(player.getLocation());
+
+        entityPlayer.resetSentInfo();
+
+        final PlayerList playerList = entityPlayer.server.getPlayerList();
+        playerList.sendPlayerPermissionLevel(entityPlayer);
+        playerList.sendLevelInfo(entityPlayer, world);
+        playerList.sendAllPlayerInfo(entityPlayer);
+
+        for (MobEffectInstance effect : entityPlayer.getActiveEffects()) {
+            entityPlayer.connection.send(new ClientboundUpdateMobEffectPacket(entityPlayer.getId(), effect, true));
+        }
+    }
+
+    @Override
+    public Set<String> supportedVersions() {
+        return Set.of("1.20.6");
+    }
+}

mappings/v1_21/build.gradle.kts

@@ -0,0 +1,9 @@
+plugins {
+    id("java")
+    id("io.papermc.paperweight.userdev") version "1.7.2"
+}
+
+dependencies {
+    paperweight.paperDevBundle("1.21.1-R0.1-SNAPSHOT")
+    compileOnly(project(":mappings"))
+}

mappings/v1_21/src/main/java/xyz/ineanto/nicko/mapping/v1_21/Mapping1_21.java

@@ -0,0 +1,53 @@
+package xyz.ineanto.nicko.mapping.v1_21;
+
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoRemovePacket;
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket;
+import net.minecraft.network.protocol.game.ClientboundRespawnPacket;
+import net.minecraft.network.protocol.game.ClientboundUpdateMobEffectPacket;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.server.players.PlayerList;
+import net.minecraft.world.effect.MobEffectInstance;
+import org.bukkit.entity.Player;
+import xyz.ineanto.nicko.mapping.Mapping;
+
+import java.util.List;
+import java.util.Set;
+
+public class Mapping1_21 extends Mapping {
+
+    @Override
+    public void respawn(Player player) {
+        final ServerPlayer entityPlayer = (ServerPlayer) player;
+
+        final ServerLevel world = entityPlayer.serverLevel();
+        final ClientboundRespawnPacket respawn = new ClientboundRespawnPacket(
+                entityPlayer.createCommonSpawnInfo(world),
+                ClientboundRespawnPacket.KEEP_ALL_DATA
+        );
+
+        entityPlayer.connection.send(new ClientboundPlayerInfoRemovePacket(List.of(player.getUniqueId())));
+        entityPlayer.connection.send(ClientboundPlayerInfoUpdatePacket.createPlayerInitializing(List.of(entityPlayer)));
+
+        entityPlayer.connection.send(respawn);
+
+        entityPlayer.onUpdateAbilities();
+        entityPlayer.connection.teleport(player.getLocation());
+
+        entityPlayer.resetSentInfo();
+
+        final PlayerList playerList = entityPlayer.server.getPlayerList();
+        playerList.sendPlayerPermissionLevel(entityPlayer);
+        playerList.sendLevelInfo(entityPlayer, world);
+        playerList.sendAllPlayerInfo(entityPlayer);
+
+        for (MobEffectInstance effect : entityPlayer.getActiveEffects()) {
+            entityPlayer.connection.send(new ClientboundUpdateMobEffectPacket(entityPlayer.getId(), effect, true));
+        }
+    }
+
+    @Override
+    public Set<String> supportedVersions() {
+        return Set.of("1.21", "1.21.1");
+    }
+}

settings.gradle.kts

@@ -1,34 +1,9 @@
 rootProject.name = "nicko"
 
+include(":mappings")
 setOf(
-    "1_20"
+    "1_20", "1_20_2", "1_20_4", "1_20_6",
+    "1_21"
 ).forEach {
-    include("mappings:v$it")
+    include(":mappings:v$it")
 }
-
-include("common", "api")
-
-dependencyResolutionManagement {
-    repositories {
-        mavenCentral()
-        mavenLocal()
-        maven { url = uri("https://jitpack.io") }
-        maven {
-            name = "xenondevs"
-            url = uri("https://repo.xenondevs.xyz/releases")
-        }
-        maven {
-            name = "papermc"
-            url = uri("https://repo.papermc.io/repository/maven-public/")
-        }
-        maven {
-            name = "codemc"
-            url = uri("https://repo.codemc.io/repository/maven-snapshots/")
-        }
-        maven {
-            name = "placeholderapi"
-            url = uri("https://repo.extendedclip.com/content/repositories/placeholderapi/")
-        }
-    }
-}
-include("v1_20")

src/main/java/xyz/ineanto/nicko/Nicko.java

@@ -14,6 +14,7 @@ import xyz.ineanto.nicko.event.PlayerJoinListener;
 import xyz.ineanto.nicko.event.PlayerQuitListener;
 import xyz.ineanto.nicko.language.CustomLanguage;
 import xyz.ineanto.nicko.language.Language;
+import xyz.ineanto.nicko.mapping.MappingManager;
 import xyz.ineanto.nicko.migration.ConfigurationMigrator;
 import xyz.ineanto.nicko.migration.CustomLocaleMigrator;
 import xyz.ineanto.nicko.mojang.MojangAPI;
@@ -40,6 +41,7 @@ public class Nicko extends JavaPlugin {
     private CustomLanguage customLanguage;
     private PlayerNameStore nameStore;
     private RandomNameFetcher nameFetcher;
+    private MappingManager mappingManager;
     private Metrics metrics;
 
     public Nicko() {
@@ -63,8 +65,9 @@ public class Nicko extends JavaPlugin {
         configurationManager.saveDefaultConfig();
 
         dataStore = new PlayerDataStore(mojangAPI, getNickoConfig());
+        mappingManager = new MappingManager();
 
-        if (!MinecraftVersion.TRAILS_AND_TAILS.atOrAbove()) {
+        if (!MinecraftVersion.TRAILS_AND_TAILS.atOrAbove() || mappingManager.getMappingForServer().isEmpty()) {
             getLogger().severe("This version (" + MinecraftVersion.getCurrentVersion().getVersion() + ") is not supported by Nicko!");
             getLogger().severe("As of version 1.0.7, Nicko only supports the latest two majors Minecraft versions. (Currently 1.20.X-1.21.X)");
             dataStore.getStorage().setError(true);
@@ -116,7 +119,7 @@ public class Nicko extends JavaPlugin {
                 }
             }
 
-            final PluginCommand command = getCommand("nicko");
+            final PluginCommand command = getCommand("xyz/ineanto/nicko");
             if (command != null) {
                 command.setExecutor(new NickoCommand());
             }
@@ -198,4 +201,8 @@ public class Nicko extends JavaPlugin {
     public CustomLanguage getCustomLocale() {
         return customLanguage;
     }
+
+    public MappingManager getMappingManager() {
+        return mappingManager;
+    }
 }

src/main/java/xyz/ineanto/nicko/appearance/AppearanceManager.java

@@ -10,6 +10,7 @@ import org.bukkit.entity.Player;
 import org.bukkit.event.player.PlayerTeleportEvent;
 import xyz.ineanto.nicko.Nicko;
 import xyz.ineanto.nicko.language.LanguageKey;
+import xyz.ineanto.nicko.mapping.Mapping;
 import xyz.ineanto.nicko.mojang.MojangAPI;
 import xyz.ineanto.nicko.mojang.MojangSkin;
 import xyz.ineanto.nicko.profile.NickoProfile;
@@ -58,7 +59,7 @@ public class AppearanceManager {
         if (!result.isError()) {
             updateMetadata();
             updateTabList(gameProfile, displayName);
-            respawnPlayer();
+            respawnPlayerViaMappings();
             respawnEntityForOthers();
         }
         return result;
@@ -140,7 +141,14 @@ public class AppearanceManager {
         entityWatcher.setObject(17, (byte) 0x7f, true);
     }
 
-    private void respawnPlayer() {
+    private void respawnPlayerViaMappings() {
+        final Optional<Mapping> mapping = instance.getMappingManager().getMappingForServer();
+        if (mapping.isEmpty()) return;
+        mapping.get().respawn(player);
+    }
+
+    @Deprecated
+    private void respawnPlayerViaProtocolLib() {
         final World world = player.getWorld();
         final boolean wasFlying = player.isFlying();
         final boolean wasAllowedToFly = player.getAllowFlight();

src/main/java/xyz/ineanto/nicko/gui/HomeGUI.java

@@ -5,8 +5,8 @@ import xyz.ineanto.nicko.gui.items.appearance.ChangeBothItem;
 import xyz.ineanto.nicko.gui.items.appearance.ChangeNameItem;
 import xyz.ineanto.nicko.gui.items.appearance.ChangeSkinItem;
 import xyz.ineanto.nicko.gui.items.home.*;
-import xyz.ineanto.nicko.language.PlayerLanguage;
 import xyz.ineanto.nicko.language.LanguageKey;
+import xyz.ineanto.nicko.language.PlayerLanguage;
 import xyz.xenondevs.invui.gui.Gui;
 import xyz.xenondevs.invui.window.Window;
 

src/main/java/xyz/ineanto/nicko/mapping/MappingManager.java

@@ -0,0 +1,27 @@
+package xyz.ineanto.nicko.mapping;
+
+import org.bukkit.Bukkit;
+import xyz.ineanto.nicko.mapping.v1_20.Mapping1_20;
+import xyz.ineanto.nicko.mapping.v1_20_2.Mapping1_20_2;
+import xyz.ineanto.nicko.mapping.v1_20_4.Mapping1_20_4;
+import xyz.ineanto.nicko.mapping.v1_20_6.Mapping1_20_6;
+import xyz.ineanto.nicko.mapping.v1_21.Mapping1_21;
+
+import java.util.List;
+import java.util.Optional;
+
+public class MappingManager {
+    private final List<Mapping> mappings = List.of(
+            new Mapping1_20(),
+            new Mapping1_20_2(),
+            new Mapping1_20_4(),
+            new Mapping1_20_6(),
+            new Mapping1_21()
+    );
+
+    public Optional<Mapping> getMappingForServer() {
+        return mappings.stream()
+                .filter(mapping -> mapping.supportedVersions().contains(Bukkit.getMinecraftVersion()))
+                .findFirst();
+    }
+}

src/main/java/xyz/ineanto/nicko/placeholder/NickoExpansion.java

@@ -19,7 +19,7 @@ public class NickoExpansion extends PlaceholderExpansion {
 
     @Override
     public @NotNull String getIdentifier() {
-        return "nicko";
+        return "xyz/ineanto/nicko";
     }
 
     @Override

src/main/java/xyz/ineanto/nicko/storage/mariadb/MariaDBStorageProvider.java

@@ -16,7 +16,7 @@ public class MariaDBStorageProvider implements StorageProvider {
 
     private Connection connection;
 
-    private final String schemaName = "nicko";
+    private final String schemaName = "xyz/ineanto/nicko";
 
     public MariaDBStorageProvider(Configuration configuration) {
         this.configuration = configuration;

src/main/java/xyz/ineanto/nicko/storage/mysql/MySQLStorageProvider.java

@@ -16,7 +16,7 @@ public class MySQLStorageProvider implements StorageProvider {
 
     private Connection connection;
 
-    private final String schemaName = "nicko";
+    private final String schemaName = "xyz/ineanto/nicko";
 
     public MySQLStorageProvider(Configuration configuration) {
         this.configuration = configuration;