Bukkit 1.20 箱子锁定插件：自动记录放置者ID并锁定机制

以下是用Java编写的示例代码，实现了在Bukkit 1.20中放置的箱子自动记录放置者ID到配置文件，并且在箱子锁定者与打开者ID不符时，将其变成大型箱子DoubleChest类型的功能。

import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.block.BlockState;
import org.bukkit.block.Chest;
import org.bukkit.block.DoubleChest;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.configuration.file.YamlConfiguration;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockPlaceEvent;
import org.bukkit.event.inventory.InventoryOpenEvent;
import org.bukkit.inventory.InventoryHolder;
import org.bukkit.plugin.java.JavaPlugin;

import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

public class ChestLockPlugin extends JavaPlugin implements Listener {

    private Map<UUID, UUID> lockMap;
    private FileConfiguration config;

    @Override
    public void onEnable() {
        lockMap = new HashMap<>();
        config = YamlConfiguration.loadConfiguration(new File(getDataFolder(), 'locks.yml'));

        if (!config.contains('locks')) {
            config.createSection('locks');
        }

        Bukkit.getPluginManager().registerEvents(this, this);
    }

    @Override
    public void onDisable() {
        saveConfigFile();
    }

    private void saveConfigFile() {
        try {
            config.save(new File(getDataFolder(), 'locks.yml'));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @EventHandler
    public void onBlockPlace(BlockPlaceEvent event) {
        Block block = event.getBlock();
        BlockState blockState = block.getState();

        if (blockState instanceof Chest) {
            Chest chest = (Chest) blockState;
            UUID placerId = event.getPlayer().getUniqueId();
            String chestId = block.getLocation().toString();

            lockMap.put(placerId, placerId);
            config.set('locks.' + chestId, placerId.toString());

            saveConfigFile();
        }
    }

    @EventHandler
    public void onInventoryOpen(InventoryOpenEvent event) {
        InventoryHolder holder = event.getInventory().getHolder();

        if (holder instanceof Chest) {
            Chest chest = (Chest) holder;
            String chestId = chest.getLocation().toString();
            String placerIdStr = config.getString('locks.' + chestId);

            if (placerIdStr != null) {
                UUID placerId = UUID.fromString(placerIdStr);
                Player player = (Player) event.getPlayer();

                if (!player.getUniqueId().equals(placerId)) {
                    Block adjacentChest = chest.getRelative(chest.getBlock().getFace(chest.getBlock().getRelative(0, 1, 0)));
                    BlockState adjacentChestState = adjacentChest.getState();

                    if (adjacentChestState instanceof Chest) {
                        Chest adjacentChest2 = (Chest) adjacentChestState;

                        if (adjacentChest2.getInventory().getType() == chest.getInventory().getType()) {
                            DoubleChest doubleChest = new DoubleChest(chest, adjacentChest2);
                            chest = doubleChest;
                        }
                    }
                }
            }
        }
    }
}

请注意，这只是一个示例代码，可能需要根据实际需求进行修改和适配。另外，该代码仅实现了将放置者ID记录到配置文件和在锁定者与打开者ID不符时变成DoubleChest类型的功能，其他细节（例如解锁、移除锁定等）需要根据具体需求进行进一步的开发。