feat(quests): allow nearby command creation

src/main/java/games/dmg/spigotquestboard/BoardProximity.java

@@ -0,0 +1,8 @@
+package games.dmg.spigotquestboard;
+
+import java.util.UUID;
+
+@FunctionalInterface
+interface BoardProximity {
+    boolean isWithin(UUID worldId, double x, double y, double z, double maximumDistance);
+}

src/main/java/games/dmg/spigotquestboard/BoardRegistry.java

@@ -7,7 +7,7 @@ import java.util.Map;
 import java.util.Objects;
 import java.util.Set;
 
-final class BoardRegistry {
+final class BoardRegistry implements BoardProximity {
     private final BoardRepository repository;
     private Map<BoardId, RegisteredBoard> boards;
 
@@ -46,6 +46,30 @@ final class BoardRegistry {
         return boards.size();
     }
 
+    @Override
+    public synchronized boolean isWithin(
+        java.util.UUID worldId,
+        double x,
+        double y,
+        double z,
+        double maximumDistance
+    ) {
+        Objects.requireNonNull(worldId, "worldId");
+        if (maximumDistance < 0.0) {
+            return false;
+        }
+        double maximumDistanceSquared = maximumDistance * maximumDistance;
+        return boards.keySet().stream()
+            .filter(id -> id.worldId().equals(worldId))
+            .anyMatch(id -> {
+                double deltaX = x - id.x();
+                double deltaY = y - id.y();
+                double deltaZ = z - id.z();
+                return deltaX * deltaX + deltaY * deltaY + deltaZ * deltaZ
+                    <= maximumDistanceSquared;
+            });
+    }
+
     synchronized Map<BoardId, RegisteredBoard> registeredBoards() {
         return Map.copyOf(boards);
     }

src/main/java/games/dmg/spigotquestboard/QuestCommand.java

@@ -14,6 +14,7 @@ import org.bukkit.entity.Player;
 
 final class QuestCommand implements CommandExecutor, TabCompleter {
     private static final List<String> QUANTITIES = List.of("1", "16", "32", "64");
+    private static final double COMMAND_CREATION_DISTANCE = 5.0;
     private final QuestCreationGateway creator;
     private final QuestBrowser browser;
     private final QuestCompletionGateway completer;
@@ -21,6 +22,7 @@ final class QuestCommand implements CommandExecutor, TabCompleter {
     private final QuestClaimGateway claimant;
     private final Clock clock;
     private final PlayerCommandSettings playerCommands;
+    private final BoardProximity boardProximity;
 
     QuestCommand(QuestCreationGateway creator, QuestBrowser browser, Clock clock) {
         this(creator, browser, null, null, null, clock);
@@ -53,7 +55,7 @@ final class QuestCommand implements CommandExecutor, TabCompleter {
         QuestClaimGateway claimant,
         Clock clock
     ) {
-        this(creator, browser, completer, canceller, claimant, clock, null);
+        this(creator, browser, completer, canceller, claimant, clock, null, null);
     }
 
     QuestCommand(
@@ -64,6 +66,19 @@ final class QuestCommand implements CommandExecutor, TabCompleter {
         QuestClaimGateway claimant,
         Clock clock,
         PlayerCommandSettings playerCommands
+    ) {
+        this(creator, browser, completer, canceller, claimant, clock, playerCommands, null);
+    }
+
+    QuestCommand(
+        QuestCreationGateway creator,
+        QuestBrowser browser,
+        QuestCompletionGateway completer,
+        QuestCancellationGateway canceller,
+        QuestClaimGateway claimant,
+        Clock clock,
+        PlayerCommandSettings playerCommands,
+        BoardProximity boardProximity
     ) {
         this.creator = Objects.requireNonNull(creator, "creator");
         this.browser = Objects.requireNonNull(browser, "browser");
@@ -72,6 +87,7 @@ final class QuestCommand implements CommandExecutor, TabCompleter {
         this.claimant = claimant;
         this.clock = Objects.requireNonNull(clock, "clock");
         this.playerCommands = playerCommands;
+        this.boardProximity = boardProximity;
     }
 
     @Override
@@ -79,10 +95,19 @@ final class QuestCommand implements CommandExecutor, TabCompleter {
         CommandSender sender, Command command, String label, String[] arguments
     ) {
         if (!playerCommandsEnabled()) {
-            sender.sendMessage(
-                "Player quest commands are disabled. Use a physical quest board instead."
-            );
-            return true;
+            if (isCreate(arguments) && sender instanceof Player player) {
+                if (!isNearBoard(player)) {
+                    sender.sendMessage(
+                        "Move closer to a quest board to create a quest by command."
+                    );
+                    return true;
+                }
+            } else {
+                sender.sendMessage(
+                    "Player quest commands are disabled. Use a physical quest board instead."
+                );
+                return true;
+            }
         }
         if (arguments.length == 0
             || (arguments.length == 1 && "list".equalsIgnoreCase(arguments[0]))) {
@@ -178,9 +203,20 @@ final class QuestCommand implements CommandExecutor, TabCompleter {
     public List<String> onTabComplete(
         CommandSender sender, Command command, String alias, String[] arguments
     ) {
-        if (!playerCommandsEnabled() || !(sender instanceof Player)) {
+        if (!(sender instanceof Player player)) {
             return List.of();
         }
+        if (!playerCommandsEnabled()) {
+            if (!isNearBoard(player)) {
+                return List.of();
+            }
+            if (arguments.length == 1) {
+                return startsWith(List.of("create"), arguments[0]);
+            }
+            if (!isCreate(arguments)) {
+                return List.of();
+            }
+        }
         if (arguments.length == 1) {
             return startsWith(
                 List.of("create", "list", "complete", "cancel", "claim"), arguments[0]
@@ -196,7 +232,6 @@ final class QuestCommand implements CommandExecutor, TabCompleter {
             return startsWith(browser.completableQuestIds(clock.instant()), arguments[1]);
         }
         if (arguments.length == 2 && "cancel".equalsIgnoreCase(arguments[0])) {
-            Player player = (Player) sender;
             return startsWith(
                 browser.cancellableQuestIds(player.getUniqueId(), clock.instant()), arguments[1]
             );
@@ -208,6 +243,21 @@ final class QuestCommand implements CommandExecutor, TabCompleter {
         return playerCommands == null || playerCommands.enabled();
     }
 
+    private boolean isNearBoard(Player player) {
+        if (boardProximity == null) {
+            return false;
+        }
+        org.bukkit.Location location = player.getLocation();
+        return boardProximity.isWithin(
+            player.getWorld().getUID(), location.getX(), location.getY(), location.getZ(),
+            COMMAND_CREATION_DISTANCE
+        );
+    }
+
+    private static boolean isCreate(String[] arguments) {
+        return arguments.length > 0 && "create".equalsIgnoreCase(arguments[0]);
+    }
+
     private static List<String> startsWith(List<String> candidates, String prefix) {
         String normalized = prefix.toLowerCase(Locale.ROOT);
         return candidates.stream()

src/main/java/games/dmg/spigotquestboard/SpigotQuestBoardPlugin.java

@@ -98,7 +98,8 @@ public final class SpigotQuestBoardPlugin extends JavaPlugin {
         return new CommandHandlers(
             new QuestAdminCommand(boards, playerCommands),
             new QuestCommand(
-                creator, browser, completer, canceller, claimant, clock, playerCommands
+                creator, browser, completer, canceller, claimant, clock, playerCommands,
+                boards
             )
         );
     }

src/test/java/games/dmg/spigotquestboard/BoardRegistryTest.java

@@ -69,6 +69,24 @@ final class BoardRegistryTest {
         assertEquals(0, repository.saveCount);
     }
 
+    @Test
+    void proximityUsesSameWorldAndAcceptsExactFiveBlockBoundary() throws Exception {
+        RecordingRepository repository = new RecordingRepository(new BoardState(Set.of(BOARD)));
+        BoardRegistry registry = new BoardRegistry(repository);
+
+        assertTrue(registry.isWithin(
+            BOARD.id().worldId(), BOARD.id().x() + 3.0, BOARD.id().y() + 4.0,
+            BOARD.id().z(), 5.0
+        ));
+        assertFalse(registry.isWithin(
+            BOARD.id().worldId(), BOARD.id().x() + 3.01, BOARD.id().y() + 4.0,
+            BOARD.id().z(), 5.0
+        ));
+        assertFalse(registry.isWithin(
+            UUID.randomUUID(), BOARD.id().x(), BOARD.id().y(), BOARD.id().z(), 5.0
+        ));
+    }
+
     @Test
     void failedPersistenceDoesNotPublishBoard() throws Exception {
         BoardRepository repository = new BoardRepository() {

src/test/java/games/dmg/spigotquestboard/PhysicalBoardCreatorTest.java

@@ -41,6 +41,10 @@ final class PhysicalBoardCreatorTest {
         assertTrue(repository.state.boards().stream().allMatch(
             board -> board.worldName().equals("survival")
         ));
+        assertTrue(PhysicalBoardPlan.create(ANCHOR, BoardFacing.NORTH)
+            .interactionLocations().stream().allMatch(location -> registry.isWithin(
+                location.worldId(), location.x(), location.y(), location.z(), 5.0
+            )));
     }
 
     @Test

src/test/java/games/dmg/spigotquestboard/PluginCommandWiringTest.java

@@ -11,6 +11,8 @@ import java.util.List;
 import java.util.Set;
 import java.util.UUID;
 import java.util.concurrent.atomic.AtomicInteger;
+import org.bukkit.Location;
+import org.bukkit.World;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
@@ -44,6 +46,54 @@ final class PluginCommandWiringTest {
         assertTrue(worldLookups.get() > 0);
     }
 
+    @Test
+    void playerCommandUsesBoardRegistryForNearbyCreation() throws Exception {
+        UUID worldId = UUID.randomUUID();
+        BoardId boardId = new BoardId(worldId, 10, 64, 20);
+        BoardRegistry boards = new BoardRegistry(new BoardRepository() {
+            @Override public BoardState load() {
+                return new BoardState(Set.of(new RegisteredBoard(boardId, "survival")));
+            }
+            @Override public void save(BoardState state) { }
+        });
+        PlayerCommandSettings settings = new PlayerCommandSettings(
+            new PlayerCommandSettingsRepository() {
+                @Override public boolean loadEnabled() { return false; }
+                @Override public void saveEnabled(boolean enabled) { }
+            }
+        );
+        QuestCreationGateway creator = mock(QuestCreationGateway.class);
+        Quest created = mock(Quest.class);
+        when(created.id()).thenReturn(UUID.randomUUID());
+        when(creator.create(
+            org.mockito.ArgumentMatchers.any(),
+            org.mockito.ArgumentMatchers.anyString(),
+            org.mockito.ArgumentMatchers.anyInt(),
+            org.mockito.ArgumentMatchers.any()
+        )).thenReturn(created);
+        SpigotQuestBoardPlugin.CommandHandlers handlers =
+            SpigotQuestBoardPlugin.commandHandlers(
+                boards, settings, creator, mock(QuestBrowser.class), null, null, null,
+                Clock.systemUTC()
+            );
+        World world = mock(World.class);
+        when(world.getUID()).thenReturn(worldId);
+        Player player = mock(Player.class);
+        when(player.getWorld()).thenReturn(world);
+        when(player.getLocation()).thenReturn(new Location(world, 13, 68, 20));
+
+        assertTrue(handlers.quests().onCommand(
+            player, mock(Command.class), "quests", new String[] {"create", "stone", "1"}
+        ));
+
+        verify(creator).create(
+            org.mockito.ArgumentMatchers.eq(player),
+            org.mockito.ArgumentMatchers.eq("stone"),
+            org.mockito.ArgumentMatchers.eq(1),
+            org.mockito.ArgumentMatchers.any()
+        );
+    }
+
     @Test
     void adminAndPlayerCommandsShareThePersistedSetting() throws Exception {
         PlayerCommandSettings settings = new PlayerCommandSettings(

src/test/java/games/dmg/spigotquestboard/QuestCommandTest.java

@@ -14,15 +14,19 @@ import java.time.Instant;
 import java.time.ZoneOffset;
 import java.util.List;
 import java.util.UUID;
+import org.bukkit.Location;
+import org.bukkit.World;
 import org.bukkit.command.Command;
 import org.bukkit.entity.Player;
 import org.junit.jupiter.api.Test;
 
 final class QuestCommandTest {
     private static final Instant NOW = Instant.parse("2026-09-05T03:00:00Z");
+    private static final UUID WORLD_ID =
+        UUID.fromString("00000000-0000-0000-0000-000000000099");
 
     @Test
-    void disabledSettingGatesEveryPlayerCommandFormAndAutocomplete() throws Exception {
+    void disabledSettingGatesNonCreationCommandForms() throws Exception {
         QuestCreationGateway creator = mock(QuestCreationGateway.class);
         QuestBrowser browser = mock(QuestBrowser.class);
         QuestCompletionGateway completer = mock(QuestCompletionGateway.class);
@@ -43,7 +47,6 @@ final class QuestCommandTest {
         List<String[]> forms = List.of(
             new String[] {},
             new String[] {"list"},
-            new String[] {"create", "stone", "1"},
             new String[] {"complete", "quest-id"},
             new String[] {"cancel", "quest-id"},
             new String[] {"claim"}
@@ -62,6 +65,97 @@ final class QuestCommandTest {
         verifyNoInteractions(creator, browser, completer, canceller, claimant);
     }
 
+    @Test
+    void disabledSettingAllowsNearbyCreationAndOnlyCreationAutocomplete() throws Exception {
+        RecordingCreator creator = new RecordingCreator();
+        PlayerCommandSettings settings = settings(false);
+        BoardProximity proximity = (worldId, x, y, z, maximumDistance) -> {
+            assertEquals(WORLD_ID, worldId);
+            assertEquals(4.0, x);
+            assertEquals(3.0, y);
+            assertEquals(0.0, z);
+            assertEquals(5.0, maximumDistance);
+            return true;
+        };
+        QuestCommand executor = new QuestCommand(
+            creator, now -> List.of(), null, null, null,
+            Clock.fixed(NOW, ZoneOffset.UTC), settings, proximity
+        );
+        Player player = playerAt(4.0, 3.0, 0.0);
+        Command command = mock(Command.class);
+
+        assertTrue(executor.onCommand(
+            player, command, "quests", new String[] {"create", "stone", "1"}
+        ));
+
+        assertEquals(1, creator.calls);
+        assertEquals(List.of("create"), executor.onTabComplete(
+            player, command, "quests", new String[] {""}
+        ));
+        assertTrue(executor.onTabComplete(
+            player, command, "quests", new String[] {"li"}
+        ).isEmpty());
+        assertEquals(List.of("STONE", "STONE_BRICKS"), executor.onTabComplete(
+            player, command, "quests", new String[] {"create", "sto"}
+        ));
+        assertEquals(List.of("1", "16", "32", "64"), executor.onTabComplete(
+            player, command, "quests", new String[] {"create", "stone", ""}
+        ));
+        assertTrue(executor.onTabComplete(
+            player, command, "quests", new String[] {"complete", ""}
+        ).isEmpty());
+    }
+
+    @Test
+    void disabledSettingRejectsAwayCreationBeforeCreatorOrEscrowGateway() throws Exception {
+        QuestCreationGateway creator = mock(QuestCreationGateway.class);
+        QuestCommand executor = new QuestCommand(
+            creator, mock(QuestBrowser.class), null, null, null,
+            Clock.fixed(NOW, ZoneOffset.UTC), settings(false),
+            (worldId, x, y, z, maximumDistance) -> false
+        );
+        Player player = playerAt(5.01, 0.0, 0.0);
+        Command command = mock(Command.class);
+
+        assertTrue(executor.onCommand(
+            player, command, "quests", new String[] {"create", "stone", "1"}
+        ));
+
+        verify(player).sendMessage("Move closer to a quest board to create a quest by command.");
+        verifyNoInteractions(creator);
+        assertTrue(executor.onTabComplete(
+            player, command, "quests", new String[] {""}
+        ).isEmpty());
+        assertTrue(executor.onTabComplete(
+            player, command, "quests", new String[] {"create", "sto"}
+        ).isEmpty());
+    }
+
+    @Test
+    void enabledSettingPreservesAllCommandsWithoutConsultingProximity() throws Exception {
+        RecordingCreator creator = new RecordingCreator();
+        QuestBrowser browser = now -> List.of(creator.quest(1));
+        QuestCommand executor = new QuestCommand(
+            creator, browser, null, null, null, Clock.fixed(NOW, ZoneOffset.UTC),
+            settings(true),
+            (worldId, x, y, z, maximumDistance) -> {
+                throw new AssertionError("Enabled commands must bypass board proximity");
+            }
+        );
+        Player player = mock(Player.class);
+        Command command = mock(Command.class);
+
+        assertTrue(executor.onCommand(
+            player, command, "quests", new String[] {"create", "stone", "1"}
+        ));
+        assertTrue(executor.onCommand(player, command, "quests", new String[] {"list"}));
+        assertEquals(List.of("create"), executor.onTabComplete(
+            player, command, "quests", new String[] {"cr"}
+        ));
+
+        assertEquals(1, creator.calls);
+    }
+
     @Test
     void routesValidatedCreateArgumentsWithCurrentUtcTime() {
         RecordingCreator creator = new RecordingCreator();
@@ -238,6 +332,23 @@ final class QuestCommandTest {
         ).isEmpty());
     }
 
+    private static PlayerCommandSettings settings(boolean enabled) throws Exception {
+        return new PlayerCommandSettings(new PlayerCommandSettingsRepository() {
+            @Override public boolean loadEnabled() { return enabled; }
+            @Override public void saveEnabled(boolean newValue) { }
+        });
+    }
+
+    private static Player playerAt(double x, double y, double z) {
+        World world = mock(World.class);
+        when(world.getUID()).thenReturn(WORLD_ID);
+        Location location = new Location(world, x, y, z);
+        Player player = mock(Player.class);
+        when(player.getWorld()).thenReturn(world);
+        when(player.getLocation()).thenReturn(location);
+        return player;
+    }
+
     private static QuestCommand command(RecordingCreator creator) {
         return command(creator, now -> List.of());
     }