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‎.gitignore‎

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target/
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!.mvn/wrapper/maven-wrapper.jar
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!**/src/main/**/target/
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!**/src/test/**/target/
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### IntelliJ IDEA ###
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.idea/
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*.iws
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*.iml
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*.ipr
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### Eclipse ###
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.apt_generated
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.classpath
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.factorypath
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.project
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.settings
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.springBeans
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.sts4-cache
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### NetBeans ###
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/nbproject/private/
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/nbbuild/
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/dist/
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/nbdist/
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/.nb-gradle/
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build/
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!**/src/main/**/build/
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!**/src/test/**/build/
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### VS Code ###
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.vscode/
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### Mac OS ###
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.DS_Store
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### Extra ###
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run/

‎README.md‎

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# OnixModuleControl
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A Nukkit plugin that lets server owners block or modify Onix Client modules or settings for players who join their server.
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Tested on [Nukkit](https://github.com/CloudburstMC/Nukkit), [Nukkit-MOT](https://github.com/MemoriesOfTime/Nukkit-MOT), [NukkitPetteriM1Edition](https://github.com/PetteriM1/NukkitPetteriM1Edition) and [PowerNukkitX](https://github.com/PowerNukkitX/PowerNukkitX).
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## What it does
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> NOTE: Players not using Onix Client will not be affected.
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This plugin gives you more control over what players can or can't use when they join your server with Onix Client. Whether you want to block things like Freelook or Hitboxes, or auto-enable helpful features like Double Click Prevent, this plugin makes it easy to do that through a simple config file.
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[View the official documentation here](https://onixclient.com/smc).
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## Example config
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```yaml
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# Onix Client Module Control Configuration
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# You can find a list of modules here: https://github.com/OnixClient/translations/blob/main/client/languages/en_US.lang
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# Verifies blocked_modules, forced_modules and module_settings entry names using https://github.com/OnixClient/translations/blob/main/client/languages/en_US.lang
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# If a module or setting doesn't exist or a setting doesn't belong to a module, they'll get ignored
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# No verification is done if the lang file couldn't be accessed or parsed
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verify_entries: true
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# Server name that will be shown in Onix Client UI
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server_name: "Server Name"
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# Custom notification message (optional, leave empty to use default)
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notification_message: ""
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# BLOCKED MODULES
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# Format:
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# module_name:
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# block: true
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# restriction_reason: "Optional message explaining why it's blocked"
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blocked_modules:
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module.freelook.name:
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block: true
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module.hitboxes.name:
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block: true
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restriction_reason: "Wear your glasses instead."
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# FORCED MODULES
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# Format:
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# module_name:
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# force_enable: true
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# restriction_reason: "Optional message explaining why it's forced"
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# settings:
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# setting_name:
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# value: setting_value
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# min: minimum_value (optional)
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# max: maximum_value (optional)
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# lock_value: true/false (optional)
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# removed_options: [1, 2] (optional, for enum settings)
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forced_modules:
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module.double_click_prevent.name:
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force_enable: true
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restriction_reason: "High CPS is not allowed on this server."
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settings:
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module.double_click_prevent.setting.limit_left_click.name:
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value: true
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module.double_click_prevent.setting.left_max.name:
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max: 17
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# MODULE SETTINGS ONLY
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# For modules that you don't want to block or force, but just want to change settings
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# Format is the same as in the "settings" section above
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module_settings:
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module.fullbright.name:
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settings:
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module.fullbright.setting.gamma.name:
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max: 3
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```
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## Result of the example config above
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![preview.png](assets/preview.png)

‎assets/preview.png‎

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‎pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>de.mariocst</groupId>
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<artifactId>OnixModuleControl-NK</artifactId>
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<version>1.0</version>
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<properties>
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<maven.compiler.source>8</maven.compiler.source>
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<maven.compiler.target>8</maven.compiler.target>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<repositories>
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<repository>
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<id>opencollab-repo-release</id>
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<url>https://repo.opencollab.dev/maven-releases</url>
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</repository>
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<repository>
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<id>opencollab-repo-snapshot</id>
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<url>https://repo.opencollab.dev/maven-snapshots</url>
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</repository>
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</repositories>
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<dependencies>
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<dependency>
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<groupId>cn.nukkit</groupId>
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<artifactId>nukkit</artifactId>
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<version>1.0-SNAPSHOT</version>
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<scope>provided</scope>
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</dependency>
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<version>1.18.38</version>
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</dependency>
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</dependencies>
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</project>

‎src/main/java/de/mariocst/omc/Main.java‎

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package de.mariocst.omc;
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import cn.nukkit.Nukkit;
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import cn.nukkit.Player;
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import cn.nukkit.event.EventHandler;
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import cn.nukkit.event.Listener;
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import cn.nukkit.event.player.PlayerJoinEvent;
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import cn.nukkit.network.protocol.ProtocolInfo;
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import cn.nukkit.plugin.PluginBase;
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import cn.nukkit.utils.Config;
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import lombok.Getter;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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import java.nio.file.Files;
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public class Main extends PluginBase implements Listener {
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@Getter
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private static Main instance;
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@Getter
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private OMCConfig configuration;
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private boolean pnx = false;
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@Override
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public void onEnable() {
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instance = this;
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this.loadConfiguration();
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if (!ReflectionUtils.classExists("cn.nukkit.network.protocol.ScriptMessagePacket")) {
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this.getServer().getNetwork().registerPacket(ProtocolInfo.SCRIPT_MESSAGE_PACKET, ScriptMessagePacket.class);
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this.info("Registered ScriptMessagePacket class");
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}
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if (ReflectionUtils.getFieldStr(Nukkit.class, "CODENAME", null).equals("PowerNukkitX"))
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this.pnx = true;
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this.getServer().getPluginManager().registerEvents(this, this);
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this.info("Enabled Onix Module Control");
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}
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@Override
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public void onDisable() {
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this.info("Disabled Onix Module Control");
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}
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public void info(String msg) {
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this.getLogger().info(msg);
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}
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public void warn(String msg) {
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this.getLogger().warning(msg);
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}
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public void loadConfiguration() {
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String path = this.getDataFolder() + "/config.yml";
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File file = new File(path);
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if (!file.exists()) {
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try {
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if (!file.getParentFile().exists())
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Files.createDirectories(file.getParentFile().toPath());
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InputStream in = this.getResource("config.yml");
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if (in != null)
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Files.copy(in, file.toPath());
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}
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catch (IOException e) {
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this.getLogger().critical("Failed to create default config", e);
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}
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}
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Config s = new Config(path, Config.YAML);
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this.configuration = new OMCConfig(s.getRootSection());
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}
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@SuppressWarnings("unused")
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@EventHandler
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public void onJoin(PlayerJoinEvent event) {
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Player player = event.getPlayer();
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if (this.pnx) {
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try {
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Class<?> clazz = Class.forName("cn.nukkit.network.protocol.ScriptMessagePacket");
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Constructor<?> ctor = clazz.getConstructor();
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Object obj = ctor.newInstance();
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ReflectionUtils.setFieldStr(clazz, "channel", obj, "onix_client_event:restrict_features");
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ReflectionUtils.setFieldStr(clazz, "message", obj, this.configuration.toJson().toString());
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Class<?> playerClass = Class.forName("cn.nukkit.Player");
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Class<?> dataPacketClass = Class.forName("cn.nukkit.network.protocol.DataPacket");
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Method dataPacket = playerClass.getDeclaredMethod("dataPacket", dataPacketClass);
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dataPacket.invoke(player, dataPacketClass.cast(obj));
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}
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catch (ClassNotFoundException | NoSuchMethodException | InstantiationException | IllegalAccessException |
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InvocationTargetException e) {
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this.getLogger().warning("Failed to create or send ScriptMessagePacket", e);
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}
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}
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else {
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ScriptMessagePacket packet = new ScriptMessagePacket();
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packet.messageId = "onix_client_event:restrict_features";
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packet.messageValue = this.configuration.toJson().toString();
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player.dataPacket(packet);
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}
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}
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}

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