feat: 新增死亡报告与快速返回功能 - DeathReport记录死亡坐标并发送消息 - QuickBack每分钟记录坐标支持/back传送 - 更新plugin.yml添加back命令

src/main/java/Sdf1_login/DeathReport.java

@@ -0,0 +1,163 @@
+package Sdf1_login;
+
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.entity.PlayerDeathEvent;
+import org.bukkit.scheduler.BukkitRunnable;
+
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * 死亡报告系统
+ * - 记录玩家死亡坐标（一次性，新死亡覆盖）
+ * - 死亡后发送包含坐标的消息
+ */
+public class DeathReport implements Listener {
+    private final Main plugin;
+    
+    // 内存缓存: player_name → DeathData
+    private final ConcurrentHashMap<String, DeathData> deathReports = new ConcurrentHashMap<>();
+
+    public static class DeathData {
+        public final String playerName;
+        public String worldName;
+        public final double x, y, z;
+        public long deathTime;
+        public final UUID playerId;
+        
+        DeathData(String playerName, UUID playerId, Location loc) {
+            this.playerName = playerName;
+            this.playerId = playerId;
+            this.worldName = loc.getWorld() != null ? loc.getWorld().getName() : "world";
+            this.x = loc.getX();
+            this.y = loc.getY();
+            this.z = loc.getZ();
+            this.deathTime = System.currentTimeMillis();
+        }
+    }
+
+    public DeathReport(Main plugin) {
+        this.plugin = plugin;
+        initTable();
+        loadAllFromDB();
+    }
+
+    // ==================== 事件监听 ====================
+
+    @EventHandler(priority = EventPriority.MONITOR)
+    public void onPlayerDeath(PlayerDeathEvent event) {
+        Player player = event.getPlayer();
+        Location deathLoc = player.getLocation();
+        if (deathLoc == null) return;
+        
+        DeathData data = new DeathData(player.getName(), player.getUniqueId(), deathLoc);
+        deathReports.put(player.getName(), data);
+        saveToDB(data);
+        
+        // 发送死亡报告消息
+        String locMsg = String.format("§c✦ 你已死亡 ✦§7 世界: §f%s §| §7坐标: §e%.1f, %.1f, %.1f§7 时间: §f%s",
+                data.worldName, data.x, data.y, data.z,
+                new java.text.SimpleDateFormat("HH:mm:ss").format(new java.util.Date(data.deathTime)));
+        
+        player.sendMessage(locMsg);
+    }
+
+    // ==================== 查询/获取 ====================
+
+    /**
+     * 获取玩家的最新死亡坐标（如果有的话）
+     */
+    public DeathData getDeathReport(String playerName) {
+        return deathReports.get(playerName);
+    }
+
+    /**
+     * 清除玩家的死亡报告
+     */
+    public void clearDeathReport(String playerName) {
+        deathReports.remove(playerName);
+    }
+
+    // ==================== 数据库操作 ====================
+
+    private void loadAllFromDB() {
+        try {
+            java.sql.Connection conn = plugin.getDb().getConnection();
+            if (conn == null) return;
+            
+            PreparedStatement ps = conn.prepareStatement(
+                "SELECT player_name, player_uuid, world, x, y, z, death_time FROM death_reports");
+            ResultSet rs = ps.executeQuery();
+            
+            while (rs.next()) {
+                DeathData data = new DeathData(
+                    rs.getString("player_name"),
+                    UUID.fromString(rs.getString("player_uuid")),
+                    new Location(null, rs.getDouble("x"), rs.getDouble("y"), rs.getDouble("z"))
+                );
+                data.worldName = rs.getString("world");
+                data.deathTime = rs.getLong("death_time");
+                deathReports.put(data.playerName, data);
+            }
+            rs.close();
+            ps.close();
+        } catch (SQLException e) {
+            // 表可能不存在，忽略（会在第一次死亡时自动创建）
+        }
+    }
+
+    private void saveToDB(DeathData data) {
+        try {
+            java.sql.Connection conn = plugin.getDb().getConnection();
+            if (conn == null) return;
+            
+            PreparedStatement ps = conn.prepareStatement(
+                "INSERT OR REPLACE INTO death_reports (player_name, player_uuid, world, x, y, z, death_time) VALUES (?, ?, ?, ?, ?, ?, ?)");
+            ps.setString(1, data.playerName);
+            ps.setString(2, data.playerId.toString());
+            ps.setString(3, data.worldName);
+            ps.setDouble(4, data.x);
+            ps.setDouble(5, data.y);
+            ps.setDouble(6, data.z);
+            ps.setLong(7, data.deathTime);
+            ps.executeUpdate();
+            ps.close();
+        } catch (SQLException e) {
+            plugin.getLogger().warning("[死亡报告] 保存失败: " + e.getMessage());
+        }
+    }
+
+    private void persistAll() {
+        for (DeathData data : deathReports.values()) {
+            saveToDB(data);
+        }
+    }
+
+    // ==================== 初始化 ====================
+
+    public void initTable() {
+        try {
+            java.sql.Connection conn = plugin.getDb().getConnection();
+            if (conn == null) return;
+            
+            java.sql.Statement st = conn.createStatement();
+            st.execute("CREATE TABLE IF NOT EXISTS death_reports ("
+                    + "player_name TEXT PRIMARY KEY, "
+                    + "player_uuid TEXT NOT NULL, "
+                    + "world TEXT, "
+                    + "x REAL, y REAL, z REAL, "
+                    + "death_time LONG)");
+            st.close();
+        } catch (SQLException e) {
+            plugin.getLogger().warning("[死亡报告] 建表失败: " + e.getMessage());
+        }
+    }
+}

src/main/java/Sdf1_login/Main.java

@@ -17,6 +17,7 @@ import org.bukkit.event.entity.EntityDamageByEntityEvent;
 import org.bukkit.event.entity.EntityDamageEvent;
 import org.bukkit.event.entity.EntityDeathEvent;
 import org.bukkit.event.entity.ProjectileLaunchEvent;
+import org.bukkit.event.player.PlayerMoveEvent;
 import org.bukkit.event.inventory.CraftItemEvent;
 import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.inventory.InventoryDragEvent;
@@ -147,6 +148,8 @@ public class Main extends JavaPlugin
     public AreaCLIManager areaCLIManager;
     private TeleportManager teleportMgr;
     private HomeManager homeMgr;
+    private DeathReport deathReport;
+    private QuickBack quickBack;
 
 
     // 钱包流水查看目标（玩家名 → 查看目标）
@@ -575,6 +578,17 @@ public class Main extends JavaPlugin
         getCommand("home").setTabCompleter(this);
         getCommand("homes").setTabCompleter(this);
         
+        // ===== 死亡报告系统 =====
+        deathReport = new DeathReport(this);
+        deathReport.initTable();
+        getServer().getPluginManager().registerEvents(deathReport, this);
+        
+        // ===== 快速返回系统 =====
+        quickBack = new QuickBack(this);
+        quickBack.initTable();
+        getCommand("back").setExecutor(quickBack);
+        getCommand("back").setTabCompleter(quickBack);
+        
         // 注册传送命令已在 onCommand 中通过条件分支完成
         
         getLogger().info("§b[Sdf1_login]启动完毕\n§lS欢迎使用sdf1系列插件，如有问题，您可在\nGitHub和Gitee提交反馈");
@@ -688,6 +702,10 @@ public class Main extends JavaPlugin
             questTracker.shutdown();
         if (homeMgr != null)
             homeMgr.shutdown();
+        if (deathReport != null)
+            deathReport = null;
+        if (quickBack != null)
+            quickBack = null;
         if (areaProtection != null) {
             areaProtection.stopEnforceTask();
         }
@@ -4668,6 +4686,18 @@ public class Main extends JavaPlugin
             }
         }
 
+        // ===== /back 快速返回 =====
+        if (label.equalsIgnoreCase("back")) {
+            if (!(sender instanceof Player)) {
+                sender.sendMessage("§c此命令仅限玩家使用");
+                return true;
+            }
+            if (quickBack == null) {
+                sender.sendMessage("§c快速返回系统未初始化");
+                return true;
+            }
+            return quickBack.onCommand(sender, cmd, label, args);
+        }
 
         // ===== /printer [玩家名] =====
         if (label.equalsIgnoreCase("printer")) {

src/main/java/Sdf1_login/QuickBack.java

@@ -0,0 +1,234 @@
+package Sdf1_login;
+
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+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 org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerMoveEvent;
+import org.bukkit.scheduler.BukkitRunnable;
+import org.bukkit.util.Vector;
+
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * 快速返回系统 (/back)
+ * - 每分钟记录一次在线玩家的坐标
+ * - /back 命令传送玩家到最近的一个记录坐标
+ */
+public class QuickBack implements Listener, CommandExecutor, TabCompleter {
+    private final Main plugin;
+    
+    // 内存缓存: player_name → Location (每分钟刷新)
+    private final Map<String, Location> lastKnownLocations = new ConcurrentHashMap<>();
+    
+    // 冷却: player_name → next_available_time
+    private final Map<String, Long> cooldowns = new ConcurrentHashMap<>();
+    private static final long COOLDOWN_MS = 5 * 60 * 1000; // 5分钟冷却
+    
+    // 最大记录数 per player
+    private static final int MAX_RECORDS = 50;
+
+    public QuickBack(Main plugin) {
+        this.plugin = plugin;
+        loadAllFromDB();
+        
+        // 每分钟记录所有在线玩家的坐标
+        new BukkitRunnable() {
+            @Override
+            public void run() {
+                for (Player p : Bukkit.getOnlinePlayers()) {
+                    recordLocation(p);
+                }
+            }
+        }.runTaskTimer(plugin, 1200L, 1200L);
+    }
+
+    // ==================== 事件监听 ====================
+
+    @EventHandler(priority = EventPriority.MONITOR)
+    public void onPlayerMove(PlayerMoveEvent event) {
+        // 移动超过8格时才记录（减少数据库写入压力）
+        Location from = event.getFrom();
+        Location to = event.getTo();
+        if (to == null || from.getWorld() != to.getWorld()) return;
+        
+        double distance = from.distance(to);
+        if (distance < 8.0) return;
+        
+        recordLocation(event.getPlayer());
+    }
+
+    // ==================== 命令处理 ====================
+
+    @Override
+    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+        if (!(sender instanceof Player)) {
+            sender.sendMessage("§c此命令仅限玩家使用");
+            return true;
+        }
+        
+        Player player = (Player) sender;
+        
+        // 检查冷却
+        Long nextAvailable = cooldowns.get(player.getName());
+        if (nextAvailable != null && System.currentTimeMillis() < nextAvailable) {
+            long remaining = (nextAvailable - System.currentTimeMillis()) / 1000;
+            player.sendMessage("§c快速返回冷却中，请等待 §e" + remaining + " §c秒");
+            return true;
+        }
+        
+        // 获取最近的已知位置
+        Location loc = getLastKnownLocation(player);
+        if (loc == null) {
+            player.sendMessage("§c没有找到可返回的位置记录");
+            return true;
+        }
+        
+        // 传送
+        if (loc.getWorld() == null) {
+            player.sendMessage("§c位置世界信息无效");
+            return true;
+        }
+        
+        Location dest = loc.clone().add(0.5, 0, 0.5); // 对齐格子中心
+        player.teleport(dest);
+        
+        // 设置冷却
+        cooldowns.put(player.getName(), System.currentTimeMillis() + COOLDOWN_MS);
+        player.sendMessage("§a§l[快速返回] §f已传送到最近记录点");
+        
+        return true;
+    }
+
+    // ==================== 位置记录 ====================
+
+    private void recordLocation(Player player) {
+        Location loc = player.getLocation();
+        lastKnownLocations.put(player.getName(), loc);
+        saveToDB(player.getName(), loc);
+    }
+
+    public Location getLastKnownLocation(Player player) {
+        // 优先从内存获取
+        Location loc = lastKnownLocations.get(player.getName());
+        if (loc != null && loc.getWorld() != null) {
+            return loc;
+        }
+        
+        // 从数据库获取
+        return loadFromDB(player.getName());
+    }
+
+    // ==================== 数据库操作 ====================
+
+    private void loadAllFromDB() {
+        try {
+            java.sql.Connection conn = plugin.getDb().getConnection();
+            if (conn == null) return;
+            
+            PreparedStatement ps = conn.prepareStatement(
+                "SELECT player_name, world, x, y, z FROM quick_back_records");
+            ResultSet rs = ps.executeQuery();
+            
+            while (rs.next()) {
+                String playerName = rs.getString("player_name");
+                Location loc = new Location(
+                    Bukkit.getWorld(rs.getString("world")),
+                    rs.getDouble("x"),
+                    rs.getDouble("y"),
+                    rs.getDouble("z")
+                );
+                lastKnownLocations.put(playerName, loc);
+            }
+            rs.close();
+            ps.close();
+        } catch (SQLException e) {
+            // 表可能不存在
+        }
+    }
+
+    private void saveToDB(String playerName, Location loc) {
+        try {
+            java.sql.Connection conn = plugin.getDb().getConnection();
+            if (conn == null) return;
+            
+            PreparedStatement ps = conn.prepareStatement(
+                "INSERT OR REPLACE INTO quick_back_records (player_name, world, x, y, z) VALUES (?, ?, ?, ?, ?)");
+            ps.setString(1, playerName);
+            ps.setString(2, loc.getWorld() != null ? loc.getWorld().getName() : "world");
+            ps.setDouble(3, loc.getX());
+            ps.setDouble(4, loc.getY());
+            ps.setDouble(5, loc.getZ());
+            ps.executeUpdate();
+            ps.close();
+        } catch (SQLException e) {
+            // 忽略
+        }
+    }
+
+    private Location loadFromDB(String playerName) {
+        try {
+            java.sql.Connection conn = plugin.getDb().getConnection();
+            if (conn == null) return null;
+            
+            PreparedStatement ps = conn.prepareStatement(
+                "SELECT world, x, y, z FROM quick_back_records WHERE player_name=? LIMIT 1");
+            ps.setString(1, playerName);
+            ResultSet rs = ps.executeQuery();
+            
+            if (rs.next()) {
+                Location loc = new Location(
+                    Bukkit.getWorld(rs.getString("world")),
+                    rs.getDouble("x"),
+                    rs.getDouble("y"),
+                    rs.getDouble("z")
+                );
+                rs.close();
+                ps.close();
+                return loc;
+            }
+            rs.close();
+            ps.close();
+        } catch (SQLException e) {
+            // 忽略
+        }
+        return null;
+    }
+
+    // ==================== Tab补全 ====================
+
+    @Override
+    public List<String> onTabComplete(CommandSender sender, Command command, String alias, String[] args) {
+        return new ArrayList<>();
+    }
+
+    // ==================== 初始化 ====================
+
+    public void initTable() {
+        try {
+            java.sql.Connection conn = plugin.getDb().getConnection();
+            if (conn == null) return;
+            
+            java.sql.Statement st = conn.createStatement();
+            st.execute("CREATE TABLE IF NOT EXISTS quick_back_records ("
+                    + "player_name TEXT PRIMARY KEY, "
+                    + "world TEXT, "
+                    + "x REAL, y REAL, z REAL)");
+            st.close();
+        } catch (SQLException e) {
+            plugin.getLogger().warning("[快速返回] 建表失败: " + e.getMessage());
+        }
+    }
+}

src/main/resources/plugin.yml

@@ -42,9 +42,9 @@ commands:
   签到:
     description: 每日签到(中文)
     usage: /签到
-  #oa:
-  #  description: 申请删除账号
-  #  usage: /oa [玩家名]
+#oa:
+#  description: 申请删除账号
+#  usage: /oa [玩家名]
   删除账号:
     description: 申请删除账号(中文)
     usage: /删除账号 [玩家名]
@@ -97,8 +97,8 @@ commands:
     description: 打开商店
     usage: /商店
 # testorder:
-  #  description: 测试订单中心
-  #  usage: /testorder
+#  description: 测试订单中心
+#  usage: /testorder
   protect:
     description: 区域保护
     usage: /protect
@@ -150,4 +150,6 @@ commands:
   group:
     description: 用户组管理
     usage: /group <buy|renew|info> [组名]
-
+  back:
+    description: 快速返回最近记录点
+    usage: /back