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Merge pull request #3 from indra87g/feature/server-selector
feat: Add /servers command for server selection
2 parents a3d9f98 + b616354 commit 4b82d46

6 files changed

Lines changed: 238 additions & 9 deletions

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‎pom.xml‎

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@@ -35,22 +35,14 @@
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<id>nukkitx</id>
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<url>https://repo.opencollab.dev/main/</url>
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</repository>
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<repository>
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<id>jitpack.io</id>
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<url>https://jitpack.io</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>com.github.MEFRREEX</groupId>
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<artifactId>FormConstructor</artifactId>
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<version>2.0.0</version>
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</dependency>
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<dependency>
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<groupId>me.onebone</groupId>
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<artifactId>EconomyAPI</artifactId>

‎src/main/java/com/indra87g/Main.java‎

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package com.indra87g;
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import cn.nukkit.Player;
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import cn.nukkit.plugin.PluginBase;
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import cn.nukkit.scheduler.PluginTask;
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import cn.nukkit.utils.Config;
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import com.indra87g.commands.ServersCommand;
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import com.indra87g.commands.SetBlockCommand;
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import java.io.File;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.UUID;
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public class Main extends PluginBase {
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private List<Map> servers;
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private final Map<UUID, PluginTask<?>> countdowns = new HashMap<>();
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private final Map<UUID, Player> teleportingPlayers = new HashMap<>();
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private final Map<UUID, cn.nukkit.level.Location> playerLocations = new HashMap<>();
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@Override
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public void onEnable() {
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this.saveDefaultConfig();
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this.saveResource("servers.yml");
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Config serversConfig = new Config(new File(this.getDataFolder(), "servers.yml"), Config.YAML);
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this.servers = serversConfig.getMapList("servers");
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getLogger().info("WaffleCoreNK has been enabled.");
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ServersCommand serversCommand = new ServersCommand(this);
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this.getServer().getPluginManager().registerEvents(new com.indra87g.listeners.PlayerMoveListener(this), this);
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this.getServer().getPluginManager().registerEvents(serversCommand, this);
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this.getServer().getCommandMap().register("setblock", new SetBlockCommand());
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this.getServer().getCommandMap().register("servers", serversCommand);
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}
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public List<Map> getServers() {
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return servers;
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}
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public Map<UUID, PluginTask<?>> getCountdowns() {
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return countdowns;
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}
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public Map<UUID, Player> getTeleportingPlayers() {
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return teleportingPlayers;
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}
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public Map<UUID, cn.nukkit.level.Location> getPlayerLocations() {
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return playerLocations;
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}
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}

‎src/main/java/com/indra87g/commands/ServersCommand.java‎

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package com.indra87g.commands;
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import cn.nukkit.Player;
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import cn.nukkit.command.Command;
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import cn.nukkit.command.CommandSender;
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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.PlayerFormRespondedEvent;
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import cn.nukkit.form.element.ElementButton;
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import cn.nukkit.network.protocol.TransferPacket;
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import cn.nukkit.scheduler.PluginTask;
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import cn.nukkit.form.window.FormWindowSimple;
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import com.indra87g.Main;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.UUID;
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public class ServersCommand extends Command implements Listener {
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private final Main plugin;
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private final Map<UUID, Integer> formIDs = new HashMap<>();
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public ServersCommand(Main plugin) {
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super("servers", "Display a list of servers to connect to.", "/servers");
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this.plugin = plugin;
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}
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@Override
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public boolean execute(CommandSender sender, String commandLabel, String[] args) {
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if (!(sender instanceof Player)) {
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sender.sendMessage("This command can only be used by a player.");
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return false;
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}
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Player player = (Player) sender;
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List<Map> servers = plugin.getServers();
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if (servers == null || servers.isEmpty()) {
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player.sendMessage("There are no servers available at the moment. Please try again later.");
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return true;
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}
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FormWindowSimple form = new FormWindowSimple("Server Selector", "Choose a server to connect to.");
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for (Map serverData : servers) {
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form.addButton(new ElementButton(String.valueOf(serverData.get("name"))));
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}
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int formId = player.showFormWindow(form);
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formIDs.put(player.getUniqueId(), formId);
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return true;
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}
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@EventHandler
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public void onFormResponse(PlayerFormRespondedEvent event) {
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Player player = event.getPlayer();
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UUID playerUUID = player.getUniqueId();
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if (formIDs.containsKey(playerUUID) && formIDs.get(playerUUID) == event.getFormID()) {
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formIDs.remove(playerUUID); // Prevent re-handling
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if (event.getResponse() == null) {
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return; // Form was closed
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}
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if (event.getWindow() instanceof FormWindowSimple) {
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FormWindowSimple form = (FormWindowSimple) event.getWindow();
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int buttonIndex = form.getResponse().getClickedButtonId();
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List<Map> servers = plugin.getServers();
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if (servers == null || buttonIndex >= servers.size()) {
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return; // Should not happen
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}
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Map serverData = servers.get(buttonIndex);
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String address = String.valueOf(serverData.get("address"));
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int port = ((Number) serverData.get("port")).intValue();
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if (plugin.getTeleportingPlayers().containsKey(playerUUID)) {
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player.sendMessage("You are already being transferred to a server.");
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return;
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}
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plugin.getPlayerLocations().put(playerUUID, player.getLocation());
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plugin.getTeleportingPlayers().put(playerUUID, player);
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CountdownTask task = new CountdownTask(plugin, player, address, port);
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plugin.getServer().getScheduler().scheduleRepeatingTask(plugin, task, 20);
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plugin.getCountdowns().put(playerUUID, task);
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}
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}
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}
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private static class CountdownTask extends PluginTask<Main> {
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private final Player player;
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private final String address;
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private final int port;
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private int countdown = 3;
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public CountdownTask(Main owner, Player player, String address, int port) {
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super(owner);
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this.player = player;
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this.address = address;
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this.port = port;
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}
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@Override
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public void onRun(int currentTick) {
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if (!player.isOnline() || !this.getOwner().getTeleportingPlayers().containsKey(player.getUniqueId())) {
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this.cancel();
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this.getOwner().getTeleportingPlayers().remove(player.getUniqueId());
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this.getOwner().getCountdowns().remove(player.getUniqueId());
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this.getOwner().getPlayerLocations().remove(player.getUniqueId());
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return;
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}
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if (countdown > 0) {
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player.sendTitle("§eTeleporting in " + countdown + "...", "", 0, 25, 5);
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countdown--;
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} else {
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player.sendTitle("§aTransferring...", "", 0, 20, 0);
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TransferPacket pk = new TransferPacket();
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pk.address = address;
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pk.port = port;
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player.dataPacket(pk);
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this.getOwner().getTeleportingPlayers().remove(player.getUniqueId());
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this.getOwner().getCountdowns().remove(player.getUniqueId());
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this.getOwner().getPlayerLocations().remove(player.getUniqueId());
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this.cancel();
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}
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}
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}
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}

‎src/main/java/com/indra87g/listeners/PlayerMoveListener.java‎

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package com.indra87g.listeners;
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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.PlayerMoveEvent;
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import cn.nukkit.level.Location;
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import cn.nukkit.scheduler.PluginTask;
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import com.indra87g.Main;
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import java.util.UUID;
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public class PlayerMoveListener implements Listener {
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private final Main plugin;
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public PlayerMoveListener(Main plugin) {
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this.plugin = plugin;
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}
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@EventHandler
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public void onPlayerMove(PlayerMoveEvent event) {
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Player player = event.getPlayer();
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UUID playerUUID = player.getUniqueId();
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if (plugin.getTeleportingPlayers().containsKey(playerUUID)) {
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Location from = plugin.getPlayerLocations().get(playerUUID);
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Location to = event.getTo();
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if (from.getFloorX() != to.getFloorX() || from.getFloorZ() != to.getFloorZ()) {
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plugin.getTeleportingPlayers().remove(playerUUID);
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plugin.getPlayerLocations().remove(playerUUID);
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PluginTask<?> task = plugin.getCountdowns().remove(playerUUID);
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if (task != null) {
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task.cancel();
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}
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player.sendTitle("§cTeleportation cancelled.", "You moved.", 0, 20, 5);
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}
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}
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}
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}

‎src/main/resources/plugin.yml‎

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Original file line numberDiff line numberDiff line change
@@ -9,7 +9,14 @@ commands:
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description: "Sets a block at a specific location"
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usage: "/setblock <x> <y> <z> <block_id>"
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permission: waffle.setblock
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servers:
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description: "Shows a list of servers"
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usage: "/servers"
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permission: waffle.servers
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permissions:
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waffle.setblock:
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description: "Allows the user to use the /setblock command"
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default: op
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waffle.servers:
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description: "Allows the user to use the /servers command"
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default: true

‎src/main/resources/servers.yml‎

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servers:
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- name: "Lobby"
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address: "lobby.example.com"
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port: 19132
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- name: "Survival"
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address: "survival.example.com"
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port: 19133
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- name: "Creative"
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address: "creative.example.com"
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port: 19134

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