依使用者提供的指令名稱與子指令清單，產生完整的 Bukkit CommandExecutor + TabCompleter 類別，含子指令路由、權限節點、玩家/控制台環境判斷、參數驗證，以及 plugin.yml 宣告範例。當使用者說「幫我建立指令」、「新增 CommandExecutor」、「TabCompleter 怎麼寫」時自動應用。
依使用者提供的指令名稱與子指令清單，產生完整的 CommandExecutor + TabCompleter 實作類別。
CommandExecutor + TabCompleter 合併實作commands 節點範例onEnable() 中綁定import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.command.TabCompleter;
import org.bukkit.entity.Player;
import net.kyori.adventure.text.Component;
import net.kyori.adventure.text.format.NamedTextColor;
import org.jetbrains.annotations.NotNull;
import java.util.List;
public class MyCommand implements CommandExecutor, TabCompleter {
private final MyPlugin plugin;
public MyCommand(MyPlugin plugin) {
this.plugin = plugin;
}
@Override
public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command,
@NotNull String label, @NotNull String[] args) {
if (!(sender instanceof Player player)) {
sender.sendMessage("此指令僅限玩家使用。");
return true;
}
if (!player.hasPermission("myplugin.command")) {
player.sendMessage(Component.text("你沒有權限執行此指令。").color(NamedTextColor.RED));
return true;
}
player.sendMessage(Component.text("指令執行成功！").color(NamedTextColor.GREEN));
return true;
}
@Override
public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command,
@NotNull String alias, @NotNull String[] args) {
return List.of();
}
}
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.command.TabCompleter;
import org.bukkit.entity.Player;
import net.kyori.adventure.text.Component;
import net.kyori.adventure.text.format.NamedTextColor;
import org.jetbrains.annotations.NotNull;
import java.util.List;
public class ShopCommand implements CommandExecutor, TabCompleter {
private static final List<String> SUB_COMMANDS = List.of("buy", "sell", "list", "help");
private final MyPlugin plugin;
public ShopCommand(MyPlugin plugin) {
this.plugin = plugin;
}
@Override
public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command,
@NotNull String label, @NotNull String[] args) {
if (!(sender instanceof Player player)) {
sender.sendMessage("此指令僅限玩家使用。");
return true;
}
if (args.length == 0) {
sendUsage(player);
return true;
}
return switch (args[0].toLowerCase()) {
case "buy" -> handleBuy(player, args);
case "sell" -> handleSell(player, args);
case "list" -> handleList(player);
case "help" -> { sendUsage(player); yield true; }
default -> { sendUsage(player); yield true; }
};
}
private boolean handleBuy(Player player, String[] args) {
if (!player.hasPermission("myplugin.shop.buy")) {
player.sendMessage(Component.text("你沒有購買權限。").color(NamedTextColor.RED));
return true;
}
if (args.length < 2) {
player.sendMessage(Component.text("用法：/shop buy <物品>").color(NamedTextColor.YELLOW));
return true;
}
String itemName = args[1];
player.sendMessage(Component.text("購買了：" + itemName).color(NamedTextColor.GREEN));
return true;
}
private boolean handleSell(Player player, String[] args) {
if (!player.hasPermission("myplugin.shop.sell")) {
player.sendMessage(Component.text("你沒有出售權限。").color(NamedTextColor.RED));
return true;
}
player.sendMessage(Component.text("出售成功！").color(NamedTextColor.GREEN));
return true;
}
private boolean handleList(Player player) {
if (!player.hasPermission("myplugin.shop.list")) {
player.sendMessage(Component.text("你沒有查看清單的權限。").color(NamedTextColor.RED));
return true;
}
player.sendMessage(Component.text("商品清單：...").color(NamedTextColor.AQUA));
return true;
}
private void sendUsage(Player player) {
player.sendMessage(Component.text("=== Shop 指令 ===").color(NamedTextColor.GOLD));
player.sendMessage(Component.text("/shop buy <物品> - 購買物品").color(NamedTextColor.YELLOW));
player.sendMessage(Component.text("/shop sell - 出售物品").color(NamedTextColor.YELLOW));
player.sendMessage(Component.text("/shop list - 查看商品清單").color(NamedTextColor.YELLOW));
}
@Override
public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command,
@NotNull String alias, @NotNull String[] args) {
if (args.length == 1) {
return SUB_COMMANDS.stream()
.filter(s -> s.startsWith(args[0].toLowerCase()))
.toList();
}
if (args.length == 2 && args[0].equalsIgnoreCase("buy")) {
return List.of("diamond", "iron_ingot", "gold_ingot").stream()
.filter(s -> s.startsWith(args[1].toLowerCase()))
.toList();
}
return List.of();
}
}