Phase 1+2: Doug connects, chats, brain loop (movement WIP)

- Hybrid Python/Node.js architecture with WebSocket bridge
- PySide6 desktop app with smoky blue futuristic theme
- bedrock-protocol connection (offline + Xbox Live auth + Realms)
- Ollama integration with lean persona prompt
- 40 personality traits (15 sliders + 23 quirks + 2 toggles)
- Chat working in-game with personality
- Brain loop with decision engine
- Movement code (needs mineflayer-bedrock for proper server-auth)
- Entity tracking framework
- RakNet protocol 11 patch for newer BDS

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

bridge/src/actions/movement.ts

@@ -0,0 +1,189 @@
+/**
+ * Movement actions — walk to position, look at, jump.
+ * Uses player_auth_input for server-authoritative movement (works on Realms).
+ */
+
+import { BedrockClient } from '../client';
+import { createLogger } from '../utils/logger';
+
+const log = createLogger('actions:movement');
+
+interface Vec3 {
+  x: number;
+  y: number;
+  z: number;
+}
+
+// Default input flags — all false
+const DEFAULT_FLAGS: Record<string, boolean> = {
+  ascend: false, descend: false, north_jump: false, jump_down: false,
+  sprint_down: false, change_height: false, jumping: false,
+  auto_jumping_in_water: false, sneaking: false, sneak_down: false,
+  up: false, down: false, left: false, right: false,
+  up_left: false, up_right: false, want_up: false, want_down: false,
+  want_down_slow: false, want_up_slow: false, sprinting: false,
+  ascend_block: false, descend_block: false, sneak_toggle_down: false,
+  persist_sneak: false, start_sprinting: false, stop_sprinting: false,
+  start_sneaking: false, stop_sneaking: false, start_swimming: false,
+  stop_swimming: false, start_jumping: false, start_gliding: false,
+  stop_gliding: false, item_interact: false, block_action: false,
+  item_stack_request: false, handled_teleport: false, emoting: false,
+  client_predicted_vehicle: false,
+};
+
+export class MovementAction {
+  private client: BedrockClient;
+  private moveInterval: ReturnType<typeof setInterval> | null = null;
+  private targetPos: Vec3 | null = null;
+  private isMoving: boolean = false;
+  private onArrival: (() => void) | null = null;
+  private tickCounter: bigint = 0n;
+
+  constructor(client: BedrockClient) {
+    this.client = client;
+  }
+
+  /** Set callback for when movement completes */
+  setOnArrival(callback: () => void) {
+    this.onArrival = callback;
+  }
+
+  /**
+   * Send a player_auth_input packet (server-authoritative movement).
+   */
+  private sendAuthInput(position: Vec3, yaw: number, moveX: number, moveZ: number, flags: Record<string, boolean> = {}): boolean {
+    const rawClient = this.client.getRawClient();
+    if (!rawClient) return false;
+
+    this.tickCounter++;
+
+    const mergedFlags = { ...DEFAULT_FLAGS, ...flags };
+
+    try {
+      rawClient.write('player_auth_input', {
+        pitch: 0.0,
+        yaw: yaw,
+        position: { x: position.x, y: position.y, z: position.z },
+        move_vector: { x: moveX, z: moveZ },
+        head_yaw: yaw,
+        input_data: mergedFlags,
+        input_mode: 'mouse',
+        play_mode: 'normal',
+        interaction_model: 'touch',
+        interact_rotation: { x: 0.0, z: 0.0 },
+        tick: this.tickCounter,
+        delta: { x: 0.0, y: 0.0, z: 0.0 },
+        analogue_move_vector: { x: moveX, z: moveZ },
+        camera_orientation: { x: 0.0, y: 0.0, z: 0.0 },
+        raw_move_vector: { x: moveX, z: moveZ },
+      });
+      return true;
+    } catch (e: any) {
+      log.error('Auth input failed', { error: e.message });
+      return false;
+    }
+  }
+
+  /**
+   * Walk toward a target position using player_auth_input.
+   */
+  walkTo(target: Vec3, speed: number = 4.317): { success: boolean; error?: string } {
+    if (!this.client.isReady()) {
+      return { success: false, error: 'Not connected' };
+    }
+
+    this.stop();
+    this.targetPos = target;
+    this.isMoving = true;
+
+    const TICK_MS = 50; // 20 ticks per second
+    const SPEED_PER_TICK = speed / 20;
+    const ARRIVAL_THRESHOLD = 1.5;
+
+    this.moveInterval = setInterval(() => {
+      if (!this.targetPos || !this.isMoving) {
+        this.stop();
+        return;
+      }
+
+      const pos = this.client.state.position;
+      const dx = this.targetPos.x - pos.x;
+      const dz = this.targetPos.z - pos.z;
+      const distXZ = Math.sqrt(dx * dx + dz * dz);
+
+      if (distXZ < ARRIVAL_THRESHOLD) {
+        log.info('Arrived at target');
+        const cb = this.onArrival;
+        this.stop();
+        if (cb) cb();
+        return;
+      }
+
+      // Normalize direction
+      const nx = dx / distXZ;
+      const nz = dz / distXZ;
+
+      // New position
+      const newX = pos.x + nx * SPEED_PER_TICK;
+      const newZ = pos.z + nz * SPEED_PER_TICK;
+
+      // Calculate yaw (look direction) — Minecraft yaw: 0 = +Z, 90 = -X
+      const yaw = Math.atan2(-nx, nz) * (180 / Math.PI);
+
+      // Send auth input with 'up' flag (forward movement)
+      const sent = this.sendAuthInput(
+        { x: newX, y: pos.y, z: newZ },
+        yaw,
+        nx,  // move_vector x component
+        nz,  // move_vector z component
+        { up: true }
+      );
+
+      if (sent) {
+        // Update our local state
+        this.client.state.position.x = newX;
+        this.client.state.position.z = newZ;
+      } else {
+        this.stop();
+      }
+    }, TICK_MS);
+
+    log.info('Walking to', { target });
+    return { success: true };
+  }
+
+  /**
+   * Look at a specific position.
+   */
+  lookAt(target: Vec3): { success: boolean } {
+    if (!this.client.isReady()) return { success: false };
+
+    const pos = this.client.state.position;
+    const dx = target.x - pos.x;
+    const dz = target.z - pos.z;
+
+    const yaw = Math.atan2(-dx, dz) * (180 / Math.PI);
+
+    // Send a single auth input with no movement
+    return { success: this.sendAuthInput(pos, yaw, 0, 0) };
+  }
+
+  /**
+   * Stop all movement.
+   */
+  stop(): void {
+    if (this.moveInterval) {
+      clearInterval(this.moveInterval);
+      this.moveInterval = null;
+    }
+    this.isMoving = false;
+    this.targetPos = null;
+  }
+
+  /**
+   * Check if currently moving.
+   */
+  getIsMoving(): boolean {
+    return this.isMoving;
+  }
+}

bridge/src/client.ts

@@ -93,6 +93,20 @@ export class BedrockClient extends EventEmitter {
     this.client.on('spawn', () => {
       log.info('Spawned in world');
       this.state.spawned = true;
+
+      // Critical: send initialization packets so the server treats us as a real player
+      // Without this, the bot is stuck in an immortal ghost state (issue #523)
+      const rawClient = this.client as any;
+      try {
+        const runtimeId = rawClient?.entityId ?? rawClient?.startGameData?.runtime_entity_id ?? 0n;
+        rawClient?.write('set_local_player_as_initialized', {
+          runtime_entity_id: BigInt(runtimeId),
+        });
+        log.info('Sent player initialization');
+      } catch (err: any) {
+        log.warn('Failed to send player init', { error: err.message });
+      }
+
       this.emit('spawn_complete', { position: this.state.position });
     });
 
@@ -234,10 +248,13 @@ export class BedrockClient extends EventEmitter {
     // Start position from start_game
     this.client.on('start_game', (packet: any) => {
       if (packet.player_position) {
+        // BDS encodes Y with a 32768 offset in start_game
+        let y = Number(packet.player_position.y);
+        if (y > 30000) y -= 32768;
         this.state.position = {
-          x: packet.player_position.x,
+          x: Number(packet.player_position.x),
-          y: packet.player_position.y,
+          y: y,
-          z: packet.player_position.z,
+          z: Number(packet.player_position.z),
         };
         log.info('Start position', { position: this.state.position });
       }
@@ -268,6 +285,49 @@ export class BedrockClient extends EventEmitter {
     log.info('Sent chat', { message: message.substring(0, 60) });
   }
 
+  /**
+   * Execute a server command (requires OP).
+   */
+  sendCommand(command: string): void {
+    if (!this.client || !this.state.connected) {
+      log.warn('Cannot send command: not connected');
+      return;
+    }
+
+    // Strip leading / if present
+    const cmd = command.startsWith('/') ? command.substring(1) : command;
+
+    try {
+      this.client.queue('command_request', {
+        command: cmd,
+        origin: {
+          type: 'player',
+          uuid: '00000000-0000-0000-0000-000000000000',
+          request_id: `cmd_${Date.now()}`,
+          player_entity_id: 0n,
+        },
+        internal: false,
+        version: '1',
+      });
+    } catch (err: any) {
+      log.error('Command failed', { command: cmd, error: err.message });
+    }
+  }
+
+  /**
+   * Teleport to a position using /tp command.
+   */
+  teleportTo(x: number, y: number, z: number): void {
+    this.sendCommand(`tp @s ${x.toFixed(2)} ${y.toFixed(2)} ${z.toFixed(2)}`);
+  }
+
+  /**
+   * Teleport relative to current position.
+   */
+  teleportRelative(dx: number, dy: number, dz: number): void {
+    this.sendCommand(`tp @s ~${dx.toFixed(2)} ~${dy.toFixed(2)} ~${dz.toFixed(2)}`);
+  }
+
   /**
    * Get the client's runtime entity ID.
    */

bridge/src/index.ts

@@ -13,6 +13,8 @@
 import { BedrockClient, ClientOptions } from './client';
 import { BridgeWSServer } from './ws_server';
 import { ChatAction } from './actions/chat';
+import { MovementAction } from './actions/movement';
+import { EntityTracker } from './world/entity_tracker';
 import { buildAuthOptions, buildRealmOptions, listRealms } from './auth';
 import { createLogger, setLogLevel, LogLevel } from './utils/logger';
 
@@ -130,6 +132,19 @@ async function main(): Promise<void> {
 
   bedrockClient = new BedrockClient(clientOptions);
   const chatAction = new ChatAction(bedrockClient);
+  const movementAction = new MovementAction(bedrockClient);
+  movementAction.setOnArrival(() => {
+    wsServer.emitEvent('movement_complete', {});
+  });
+  const entityTracker = new EntityTracker();
+
+  // Wire up entity tracking from bedrock events
+  bedrockClient.on('entity_spawned', (data: any) => {
+    entityTracker.addEntity(data.entityId, data.type, data.position, data.name);
+  });
+  bedrockClient.on('entity_removed', (data: any) => {
+    entityTracker.removeEntity(data.entityId);
+  });
 
   // ============================================================
   // Wire up bridge action handler
@@ -189,6 +204,59 @@ async function main(): Promise<void> {
           data: { gameTime: bedrockClient.state.gameTime, dayTime: bedrockClient.state.dayTime },
         };
 
+      case 'move_to':
+        // Use /tp for reliable movement (works on all server types)
+        try {
+          bedrockClient.teleportTo(params.x || 0, params.y || 0, params.z || 0);
+          return { status: 'success' };
+        } catch (err: any) {
+          return { status: 'error', error: err.message };
+        }
+
+      case 'move_relative':
+        try {
+          bedrockClient.teleportRelative(params.dx || 0, params.dy || 0, params.dz || 0);
+          return { status: 'success' };
+        } catch (err: any) {
+          return { status: 'error', error: err.message };
+        }
+
+      case 'send_command':
+        try {
+          bedrockClient.sendCommand(params.command || '');
+          return { status: 'success' };
+        } catch (err: any) {
+          return { status: 'error', error: err.message };
+        }
+
+      case 'stop':
+        movementAction.stop();
+        return { status: 'success' };
+
+      case 'look_at':
+        movementAction.lookAt({ x: params.x || 0, y: params.y || 0, z: params.z || 0 });
+        return { status: 'success' };
+
+      case 'get_nearby_entities':
+        const nearby = entityTracker.getNearbyEntities(
+          bedrockClient.state.position,
+          params.radius || 32,
+        );
+        return { status: 'success', data: { entities: nearby } };
+
+      case 'get_nearby_hostiles':
+        const hostiles = entityTracker.getNearbyHostiles(
+          bedrockClient.state.position,
+          params.radius || 16,
+        );
+        return { status: 'success', data: { hostiles } };
+
+      case 'get_players':
+        return {
+          status: 'success',
+          data: { players: entityTracker.getPlayerNames() },
+        };
+
       case 'list_realms':
         try {
           const email = params.email;

bridge/src/protocol.ts

@@ -95,7 +95,8 @@ export type EventType =
   | 'connected'
   | 'disconnected'
   | 'error'
-  | 'auth_device_code';
+  | 'auth_device_code'
+  | 'movement_complete';
 
 // ============================================================
 // Data Structures

bridge/src/world/entity_tracker.ts

@@ -0,0 +1,95 @@
+/**
+ * Tracks nearby entities — players, mobs, items.
+ */
+
+import { createLogger } from '../utils/logger';
+
+const log = createLogger('world:entities');
+
+export interface TrackedEntity {
+  id: string;
+  type: string;
+  name?: string;
+  position: { x: number; y: number; z: number };
+  health?: number;
+  isHostile: boolean;
+}
+
+const HOSTILE_MOBS = new Set([
+  'minecraft:zombie', 'minecraft:skeleton', 'minecraft:spider', 'minecraft:creeper',
+  'minecraft:enderman', 'minecraft:witch', 'minecraft:blaze', 'minecraft:ghast',
+  'minecraft:slime', 'minecraft:phantom', 'minecraft:drowned', 'minecraft:husk',
+  'minecraft:stray', 'minecraft:wither_skeleton', 'minecraft:pillager',
+  'minecraft:vindicator', 'minecraft:evoker', 'minecraft:ravager',
+  'zombie', 'skeleton', 'spider', 'creeper', 'enderman', 'witch',
+  'blaze', 'ghast', 'slime', 'phantom', 'drowned', 'husk', 'stray',
+]);
+
+export class EntityTracker {
+  private entities: Map<string, TrackedEntity> = new Map();
+  private players: Map<string, TrackedEntity> = new Map();
+
+  addEntity(id: string | bigint | number, type: string, position: any, name?: string): void {
+    const sid = String(id);
+    const isHostile = HOSTILE_MOBS.has(type) || HOSTILE_MOBS.has(type.replace('minecraft:', ''));
+    const entity: TrackedEntity = {
+      id: sid,
+      type,
+      name,
+      position: { x: position?.x || 0, y: position?.y || 0, z: position?.z || 0 },
+      isHostile,
+    };
+
+    if (type === 'player') {
+      this.players.set(name || sid, entity);
+    }
+    this.entities.set(sid, entity);
+  }
+
+  updatePosition(id: string | bigint | number, position: any): void {
+    const entity = this.entities.get(String(id));
+    if (entity && position) {
+      entity.position = { x: position.x || 0, y: position.y || 0, z: position.z || 0 };
+    }
+  }
+
+  removeEntity(id: string | bigint | number): void {
+    const sid = String(id);
+    const entity = this.entities.get(sid);
+    if (entity?.type === 'player' && entity.name) {
+      this.players.delete(entity.name);
+    }
+    this.entities.delete(sid);
+  }
+
+  getNearbyEntities(pos: { x: number; y: number; z: number }, radius: number = 32): TrackedEntity[] {
+    const result: TrackedEntity[] = [];
+    for (const entity of this.entities.values()) {
+      const dx = entity.position.x - pos.x;
+      const dy = entity.position.y - pos.y;
+      const dz = entity.position.z - pos.z;
+      const dist = Math.sqrt(dx * dx + dy * dy + dz * dz);
+      if (dist <= radius) {
+        result.push(entity);
+      }
+    }
+    return result;
+  }
+
+  getNearbyHostiles(pos: { x: number; y: number; z: number }, radius: number = 16): TrackedEntity[] {
+    return this.getNearbyEntities(pos, radius).filter(e => e.isHostile);
+  }
+
+  getPlayers(): TrackedEntity[] {
+    return Array.from(this.players.values());
+  }
+
+  getPlayerNames(): string[] {
+    return Array.from(this.players.keys());
+  }
+
+  clear(): void {
+    this.entities.clear();
+    this.players.clear();
+  }
+}

dougbot/bridge/ws_client.py

@@ -93,7 +93,8 @@ class BridgeWSClient(QObject):
 
     def is_connected(self) -> bool:
         """Check if connected to the bridge."""
-        return self._ws.state() == QWebSocket.SocketState.ConnectedState  # type: ignore
+        from PySide6.QtNetwork import QAbstractSocket
+        return self._ws.state() == QAbstractSocket.SocketState.ConnectedState
 
     def _on_connected(self) -> None:
         log.info("Connected to bridge WebSocket")

dougbot/core/brain.py

@@ -0,0 +1,286 @@
+"""
+Doug's Brain — the autonomous decision loop.
+Runs every 2 seconds and decides what Doug should do next.
+"""
+
+import math
+import random
+import time
+from PySide6.QtCore import QObject, QTimer, Signal
+
+from dougbot.bridge.ws_client import BridgeWSClient
+from dougbot.bridge.protocol import ResponseMessage
+from dougbot.utils.logging import get_logger
+
+log = get_logger("core.brain")
+
+
+class DougBrain(QObject):
+    """Autonomous decision engine. Ticks every 2 seconds."""
+
+    # Signal for chat messages the brain wants to send
+    wants_to_chat = Signal(str)  # message
+
+    def __init__(self, ws_client: BridgeWSClient, doug_name: str, parent=None):
+        super().__init__(parent)
+        self._ws = ws_client
+        self._doug_name = doug_name
+        self._tick_timer = QTimer(self)
+        self._tick_timer.timeout.connect(self._tick)
+        self._running = False
+
+        # State
+        self._position = {"x": 0, "y": 0, "z": 0}
+        self._health = 20
+        self._food = 20
+        self._day_time = 0
+        self._nearby_players: list[dict] = []
+        self._nearby_hostiles: list[dict] = []
+        self._is_moving = False
+        self._current_action = "idle"
+        self._action_start_time = 0.0
+        self._ticks_since_chat = 0
+        self._idle_since = time.time()
+        self._spawn_pos = {"x": 0, "y": 0, "z": 0}
+        self._has_spawn = False
+
+        # State request tracking
+        self._pending_status = False
+
+    def start(self):
+        """Start the brain loop."""
+        self._running = True
+        self._idle_since = time.time()
+        self._tick_timer.start(2000)  # Every 2 seconds
+        log.info("Brain started — Doug is thinking")
+
+    def stop(self):
+        """Stop the brain loop."""
+        self._running = False
+        self._tick_timer.stop()
+        log.info("Brain stopped")
+
+    def update_from_event(self, event: str, data: dict):
+        """Update brain state from bridge events."""
+        if event == "health_changed":
+            self._health = data.get("health", self._health)
+            self._food = data.get("food", self._food)
+        elif event == "time_update":
+            self._day_time = data.get("dayTime", self._day_time)
+        elif event == "spawn_complete":
+            pos = data.get("position", {})
+            self._position = {"x": pos.get("x", 0), "y": pos.get("y", 0), "z": pos.get("z", 0)}
+            if not self._has_spawn:
+                self._spawn_pos = dict(self._position)
+                self._has_spawn = True
+        elif event == "damage_taken":
+            log.info(f"Doug took damage! Health: {self._health}")
+        elif event == "movement_complete":
+            self._is_moving = False
+            self._current_action = "idle"
+            self._idle_since = time.time()
+
+    def _tick(self):
+        """One brain tick — observe, decide, act."""
+        from PySide6.QtNetwork import QAbstractSocket
+        if not self._running or self._ws._ws.state() != QAbstractSocket.SocketState.ConnectedState:
+            return
+
+        self._ticks_since_chat += 1
+
+        # If movement is taking too long (> 15 sec), cancel it
+        if self._is_moving and (time.time() - self._action_start_time > 15):
+            self._is_moving = False
+            self._current_action = "idle"
+            self._idle_since = time.time()
+            log.debug("Movement timed out, going idle")
+
+        # Request current status from bridge
+        if not self._pending_status:
+            self._pending_status = True
+            self._ws.send_request("status", {}, self._on_status)
+            self._ws.send_request("get_nearby_entities", {"radius": 16}, self._on_entities)
+
+    def _on_status(self, response: ResponseMessage):
+        """Process status response from bridge."""
+        self._pending_status = False
+        if response.status != "success":
+            return
+
+        data = response.data
+        self._position = data.get("position", self._position)
+        self._health = data.get("health", self._health)
+        self._food = data.get("food", self._food)
+        self._day_time = data.get("dayTime", self._day_time)
+
+        # Now make a decision
+        self._decide()
+
+    def _on_entities(self, response: ResponseMessage):
+        """Process nearby entities response."""
+        if response.status != "success":
+            return
+
+        entities = response.data.get("entities", [])
+        self._nearby_players = [
+            e for e in entities
+            if e.get("type") == "player" and e.get("name") != self._doug_name
+        ]
+        self._nearby_hostiles = [
+            e for e in entities if e.get("isHostile", False)
+        ]
+
+    def _decide(self):
+        """Core decision logic — what should Doug do right now?"""
+
+        # Continue walking if we have steps left
+        if self._is_moving and self._current_action == "wandering":
+            if hasattr(self, '_walk_steps_left') and self._walk_steps_left > 0:
+                self._walk_steps_left -= 1
+                target = getattr(self, '_walk_target', None)
+                if target:
+                    dx = target["x"] - self._position["x"]
+                    dz = target["z"] - self._position["z"]
+                    dist = math.sqrt(dx * dx + dz * dz)
+                    if dist > 0.5:
+                        nx = dx / dist
+                        nz = dz / dist
+                        step = min(1.5, dist)
+                        self._ws.send_request("move_relative", {
+                            "dx": nx * step,
+                            "dy": 0,
+                            "dz": nz * step,
+                        })
+                        self._position["x"] += nx * step
+                        self._position["z"] += nz * step
+                        return
+                # Arrived
+                self._is_moving = False
+                self._current_action = "idle"
+                self._idle_since = time.time()
+                return
+
+        # Don't interrupt other actions
+        if self._is_moving:
+            return
+
+        idle_duration = time.time() - self._idle_since
+
+        # Priority 1: Flee from CLOSE hostiles (within 8 blocks) when hurt
+        close_hostiles = [h for h in self._nearby_hostiles if self._distance_to(h) < 8]
+        if close_hostiles and self._health < 14:
+            self._flee_from_hostile(close_hostiles[0])
+            return
+
+        # Priority 2: Wander every 4-8 seconds of idle
+        if idle_duration > random.uniform(4, 8):
+            self._wander()
+            return
+
+        # Priority 3: Look around when idle
+        if idle_duration > 2 and random.random() < 0.4:
+            self._look_around()
+            return
+
+    def _distance_to(self, entity: dict) -> float:
+        """Distance from Doug to an entity."""
+        epos = entity.get("position", {})
+        dx = self._position["x"] - epos.get("x", 0)
+        dz = self._position["z"] - epos.get("z", 0)
+        return math.sqrt(dx * dx + dz * dz)
+
+    def _wander(self):
+        """Walk to a random nearby position using small teleport steps."""
+        # Pick a random direction and distance (3-8 blocks)
+        angle = random.uniform(0, 2 * math.pi)
+        dist = random.uniform(3, 8)
+        target_x = self._position["x"] + math.cos(angle) * dist
+        target_z = self._position["z"] + math.sin(angle) * dist
+
+        # Don't wander too far from spawn (50 block radius)
+        if self._has_spawn:
+            dx = target_x - self._spawn_pos["x"]
+            dz = target_z - self._spawn_pos["z"]
+            if math.sqrt(dx * dx + dz * dz) > 50:
+                angle = math.atan2(
+                    self._spawn_pos["z"] - self._position["z"],
+                    self._spawn_pos["x"] - self._position["x"],
+                )
+                target_x = self._position["x"] + math.cos(angle) * 6
+                target_z = self._position["z"] + math.sin(angle) * 6
+                log.debug("Wandering back toward spawn")
+
+        # Use small relative teleports (~1 block per step) to simulate walking
+        dx = target_x - self._position["x"]
+        dz = target_z - self._position["z"]
+        total_dist = math.sqrt(dx * dx + dz * dz)
+        if total_dist < 0.5:
+            return
+
+        # Normalize direction
+        nx = dx / total_dist
+        nz = dz / total_dist
+
+        # Take a single step of ~1.5 blocks toward target
+        step = min(1.5, total_dist)
+        self._ws.send_request("move_relative", {
+            "dx": nx * step,
+            "dy": 0,
+            "dz": nz * step,
+        })
+
+        # Update local position estimate
+        self._position["x"] += nx * step
+        self._position["z"] += nz * step
+
+        # Keep walking for a few ticks (set timer to continue)
+        self._walk_target = {"x": target_x, "z": target_z}
+        self._walk_steps_left = int(total_dist / 1.5)
+        self._is_moving = True
+        self._action_start_time = time.time()
+        self._current_action = "wandering"
+        log.debug(f"Walking toward ({target_x:.0f}, {self._position['y']:.0f}, {target_z:.0f}) — {total_dist:.0f} blocks")
+
+    def _look_around(self):
+        """Look at a random direction."""
+        look_x = self._position["x"] + random.uniform(-20, 20)
+        look_y = self._position["y"] + random.uniform(-3, 5)
+        look_z = self._position["z"] + random.uniform(-20, 20)
+
+        self._ws.send_request("look_at", {
+            "x": look_x,
+            "y": look_y,
+            "z": look_z,
+        })
+
+    def _flee_from_hostile(self, hostile: dict):
+        """Run away from a hostile mob using /tp."""
+        hpos = hostile.get("position", {})
+        dx = self._position["x"] - hpos.get("x", 0)
+        dz = self._position["z"] - hpos.get("z", 0)
+        dist = max(0.1, math.sqrt(dx * dx + dz * dz))
+
+        # Sprint 3 blocks away in opposite direction
+        flee_dx = (dx / dist) * 3
+        flee_dz = (dz / dist) * 3
+
+        self._ws.send_request("move_relative", {
+            "dx": flee_dx,
+            "dy": 0,
+            "dz": flee_dz,
+        })
+
+        self._position["x"] += flee_dx
+        self._position["z"] += flee_dz
+        self._is_moving = True
+        self._action_start_time = time.time()
+        self._current_action = "fleeing"
+        log.info(f"Fleeing from {hostile.get('type', 'mob')}!")
+
+    @property
+    def current_action(self) -> str:
+        return self._current_action
+
+    @property
+    def is_night(self) -> bool:
+        return self._day_time > 12000

dougbot/gui/main_window.py

@@ -15,6 +15,7 @@ from dougbot.db.queries import DougRepository, ChatRepository
 from dougbot.db.models import DougModel, PersonaConfig
 from dougbot.bridge.node_manager import NodeManager
 from dougbot.bridge.ws_client import BridgeWSClient
+from dougbot.core.brain import DougBrain
 from dougbot.ai.ollama_client import OllamaClient
 from dougbot.ai.prompt_builder import build_system_prompt
 from dougbot.utils.logging import get_logger
@@ -42,6 +43,7 @@ class MainWindow(QMainWindow):
         self._active_doug: DougModel | None = None
         self._node_manager: NodeManager | None = None
         self._ws_client: BridgeWSClient | None = None
+        self._brain: DougBrain | None = None
         self._ollama: OllamaClient | None = None
         self._chat_repo = ChatRepository(self.db)
         self._ws_port_counter = self.config.get("bridge_base_port", 8765)
@@ -218,6 +220,10 @@ class MainWindow(QMainWindow):
             self._ws_client.disconnect_from_bridge()
             self._ws_client = None
 
+        if self._brain:
+            self._brain.stop()
+            self._brain = None
+
         if self._node_manager:
             self._node_manager.stop()
             self._node_manager = None
@@ -350,6 +356,12 @@ class MainWindow(QMainWindow):
             self.dashboard.log_viewer.append_system(
                 f"Spawned at ({pos.get('x', 0):.0f}, {pos.get('y', 0):.0f}, {pos.get('z', 0):.0f})"
             )
+            # Start the brain!
+            if self._ws_client and self._active_doug:
+                self._brain = DougBrain(self._ws_client, self._active_doug.name, parent=self)
+                self._brain.update_from_event("spawn_complete", data)
+                self._brain.start()
+                self.dashboard.log_viewer.append_system("Brain activated — Doug is now autonomous!")
             return
 
         elif event == "chat_message":
@@ -383,6 +395,10 @@ class MainWindow(QMainWindow):
             reason = data.get("reason", "unknown")
             self.dashboard.log_viewer.append_error(f"Disconnected: {reason}")
 
+        # Forward all events to the brain
+        if self._brain:
+            self._brain.update_from_event(event, data)
+
     # ── Chat AI ──
 
     def _should_respond(self, message: str) -> bool: