Whoops

src/main/java/loganintech/regionforcefield/forcefield/PlayerBlockTracker.java

@@ -0,0 +1,70 @@
+package loganintech.regionforcefield.forcefield;
+
+import org.bukkit.Location;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+
+/**
+ * Tracks fake blocks sent to players so they can be properly cleaned up.
+ */
+public class PlayerBlockTracker {
+
+    private final Map<UUID, Set<Location>> playerBlocks = new HashMap<>();
+
+    /**
+     * Records that a block was sent to a player.
+     *
+     * @param player   the player
+     * @param location the block location
+     */
+    public void addBlock(@NotNull Player player, @NotNull Location location) {
+        playerBlocks.computeIfAbsent(player.getUniqueId(), k -> new HashSet<>()).add(location.clone());
+    }
+
+    /**
+     * Gets all blocks that have been sent to a player.
+     *
+     * @param player the player
+     * @return set of block locations
+     */
+    @NotNull
+    public Set<Location> getBlocks(@NotNull Player player) {
+        return playerBlocks.getOrDefault(player.getUniqueId(), new HashSet<>());
+    }
+
+    /**
+     * Clears all tracked blocks for a player.
+     *
+     * @param player the player
+     */
+    public void clearPlayer(@NotNull Player player) {
+        playerBlocks.remove(player.getUniqueId());
+    }
+
+    /**
+     * Replaces the tracked blocks for a player with a new set.
+     *
+     * @param player   the player
+     * @param newBlocks the new set of blocks
+     */
+    public void setBlocks(@NotNull Player player, @NotNull Set<Location> newBlocks) {
+        if (newBlocks.isEmpty()) {
+            playerBlocks.remove(player.getUniqueId());
+        } else {
+            playerBlocks.put(player.getUniqueId(), new HashSet<>(newBlocks));
+        }
+    }
+
+    /**
+     * Clears all tracked blocks for all players.
+     */
+    public void clearAll() {
+        playerBlocks.clear();
+    }
+}

src/main/java/loganintech/regionforcefield/listener/PlayerListener.java

@@ -0,0 +1,25 @@
+package loganintech.regionforcefield.listener;
+
+import loganintech.regionforcefield.RegionForcefieldPlugin;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerQuitEvent;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Handles player events for cleanup.
+ */
+public class PlayerListener implements Listener {
+
+    private final RegionForcefieldPlugin plugin;
+
+    public PlayerListener(@NotNull RegionForcefieldPlugin plugin) {
+        this.plugin = plugin;
+    }
+
+    @EventHandler
+    public void onPlayerQuit(@NotNull PlayerQuitEvent event) {
+        // Clean up fake blocks when player disconnects
+        plugin.getForcefieldRenderer().clearBlocks(event.getPlayer());
+    }
+}