settled-reach/client/scripts/main.gd

extends Node2D

@onready var world_renderer = $World
@onready var fog_entities = $World/FogEntities  # D-059/D-060: cognitive delay fog visualization
@onready var camera = $Camera2D
@onready var hud = $UILayer/HUD
@onready var monologue_display = $UILayer/MonologueDisplay
@onready var interaction_prompt = $InsertOverlay/InteractionPrompt  # v0.1 single-line fallback
@onready var interaction_list = $InsertOverlay/InteractionList  # D-057: z-layer 6
@onready var world_radial = $InsertOverlay/WorldRadial  # D-058: z-layer 6
@onready var dialogue_box = $InsertOverlay/DialogueBox  # D-061: z-layer 6
@onready var inventory_grid = $UILayer/InventoryGrid  # D-065: z-layer 7
@onready var stance_indicator = $UILayer/StanceIndicator  # D-053: z-layer 7
@onready var cursor_renderer = $UILayer/CursorRenderer  # D-056: z-layer 7
@onready var gauntlet_hud = $UILayer/GauntletHUD  # #496: room timer + personal bests
@onready var checklist_overlay = $UILayer/ChecklistOverlay  # #503: auto-checklist progress
@onready var time_display = $InsertOverlay/TimeDisplay  # #263: diegetic time display (D-013, D-031)
@onready var minimap = $InsertOverlay/Minimap  # #151: diegetic minimap overlay (D-013, D-049)
@onready var examine_display = $InsertOverlay/ExamineDisplay  # #174: examine result overlay
@onready var journal_panel = $InsertOverlay/JournalPanel  # #264: knowledge journal (D-041)
@onready var debug_overlay = $UILayer/DebugOverlay  # #511: F3 debug overlay
@onready var bug_report_dialog = $ModalLayer/BugReportDialog  # #495: F12 WRONG button
@onready var settings_dialog = $ModalLayer/SettingsDialog     # #528: audio settings (ESC/OPEN_MENU)
@onready var loading_screen = $ModalLayer/LoadingScreen       # #257: blocking overlay during load
@onready var debug_console = $ModalLayer/DebugConsole         # #581: tilde debug console
@onready var news_ticker = $UILayer/NewsTicker                # #592: scrolling headline bar (D-049 z-7)
@onready var star_map = $UILayer/HUD/StarMap                  # #674: star map insert module (hop-ring view)

var _last_dialogue_npc_id: int = -1  # D-064: NPC entity_id for WalkAway input
var _last_dialogue_npc_name: String = ""  # #535: NPC name for dialogue_response attribution
var _camera_anchored: bool = false
var _last_monologue_tick: int = -1       # Prevent re-consuming monologue when same tick polled twice
var _last_dialogue_tick: int = -1
var _last_confrontation_tick: int = -1  # Deduplicate confrontation_monologue signals within same tick
var _known_recognition_ids: Dictionary = {}  # D-067: entity_ids that have already chimed
var _known_triangle_ids: Dictionary = {}     # #590: triangle_ids that have already fired the activation chime
var _flash_rect: ColorRect = null  # #502/#501: ephemeral screen flash overlay (shared: teleport preempts amber)
var _teleport_in_progress: bool = false  # #501/#117: forces camera snap (not lerp) on next _process frame
var _pending_record_inputs: Array = []   # #507: accumulates server-bound inputs across frames; flushed into record_tick() on snapshot arrival
var _current_zone: String = ""           # D-073 (#529): zone tracking for ambient crossfades
var _router: SnapshotEventRouter        # #559: callable-based snapshot dispatch

const LISTENING_FOCUS_TICKS: int = 30  # D-071: stationary ticks before ListeningFocus boost activates

func _ready() -> void:
	print("The Settled Reach — client initialized")

	# #117: Manual lerp approach — disable Godot's built-in Camera2D smoothing.
	# We lerp camera.global_position directly in _process() using CAMERA_SMOOTHING_SPEED,
	# matching entity_renderer.gd's exponential smoothing pattern. Built-in smoothing
	# would conflict because we'd be setting global_position to the target every frame.
	camera.position_smoothing_enabled = false

	# Connect to simulation (test mode sets CONNECTED immediately)
	SimBridge.connect_to_sim()

	# #257: If returning from main menu "Load Game" selection, defer dispatch until connected.
	# In test mode, connect_to_sim() sets CONNECTED synchronously — dispatch fires immediately.
	# In live mode, state is CONNECTING — signal handler dispatches once connected.
	if not GameState.pending_load_path.is_empty():
		if loading_screen:
			loading_screen.show_loading()
		if SimBridge.state == SimBridge.ConnectionState.CONNECTED:
			_dispatch_pending_load()
		else:
			SimBridge.connection_state_changed.connect(_on_sim_connected_for_load)

	# Camera anchor: snap to player position before the first frame renders.
	# In test mode poll_snapshot() returns synchronously — position is set
	# immediately. In live mode the snapshot isn't available yet — _process
	# handles it via the lerp block in _process().
	var first_snapshot: Variant = SimBridge.poll_snapshot()
	if first_snapshot != null:
		GameState.apply_snapshot(first_snapshot)
		camera.global_position = GameState.player_position * Constants.TILE_SIZE
		_camera_anchored = true

	# D-061: Connect dialogue box signals
	if dialogue_box:
		dialogue_box.option_selected.connect(_on_dialogue_option_selected)
		dialogue_box.dialogue_dismissed.connect(_on_dialogue_dismissed)
		dialogue_box.confrontation_monologue.connect(_on_confrontation_monologue)
		dialogue_box.pause_requested.connect(_on_dialogue_pause_requested)
		dialogue_box.unpause_requested.connect(_on_dialogue_unpause_requested)
		# D-020 (#558): Decoupled signals — coordinator routes state changes.
		dialogue_box.dialogue_state_changed.connect(_on_dialogue_state_changed)
		dialogue_box.audio_dip_requested.connect(_on_audio_dip_requested)
		dialogue_box.audio_dip_cleared.connect(_on_audio_dip_cleared)

	# #496: Print gauntlet session summary on disconnect
	if gauntlet_hud:
		SimBridge.connection_state_changed.connect(_on_connection_state_changed)

	# #559: Register snapshot dispatch handlers — replaces inline dispatch in _process().
	_router = SnapshotEventRouter.new()
	# Always-run: child nodes that update from GameState on every snapshot tick.
	if world_renderer:
		_router.register_always(world_renderer.update_from_state)
	_router.register_always(_propagate_insert_state)
	_router.register_always(_update_interaction_list)
	if inventory_grid:
		_router.register_always(inventory_grid.update_from_state)
	if stance_indicator:
		_router.register_always(stance_indicator.update_from_state)
	if fog_entities:
		_router.register_always(fog_entities.update_from_state)
	_router.register_always(_play_recognition_chimes)
	_router.register_always(_handle_triangle_crisis_events)
	if gauntlet_hud:
		_router.register_always(gauntlet_hud.update_from_state)
	if checklist_overlay:
		_router.register_always(checklist_overlay.update_from_state)
	if time_display:
		_router.register_always(time_display.update_from_state)
	if news_ticker:
		_router.register_always(news_ticker.update_from_state)
	if journal_panel:
		_router.register_always(journal_panel.update_from_state)
	if debug_overlay:
		_router.register_always(debug_overlay.update_from_state)
	_router.register_always(_play_close_sound_events)
	_router.register_always(_update_zone)
	_router.register_always(_update_listening_focus)
	_router.register_always(_consume_examine_result)
	# Keyed: consume methods guarded by specific snapshot fields.
	_router.register("current_monologue", _consume_monologue)
	_router.register("current_dialogue", _consume_dialogue)
	_router.register("conversation_events", _consume_conversation_events)
	_router.register("conversation_ended", _consume_conversation_ended)
	_router.register("dialogue_response", _consume_dialogue_response)
	_router.register("save_result", _consume_save_result)
	_router.register("debug_response", _consume_debug_response)

	# #581: Wire settings_dialog debug console toggle → debug_console.set_enabled
	if settings_dialog and debug_console:
		settings_dialog.debug_console_toggled.connect(debug_console.set_enabled)

	# #581 D-088: Wire debug console pause/unpause — sim must not advance during debug input
	if debug_console:
		debug_console.pause_requested.connect(_on_dialogue_pause_requested)
		debug_console.unpause_requested.connect(_on_dialogue_unpause_requested)


func _unhandled_key_input(event: InputEvent) -> void:
	if event.is_pressed() and not event.is_echo():
		if event is InputEventKey and event.keycode == KEY_M:
			if star_map:
				star_map.toggle_visible()


func _process(delta: float) -> void:
	# Main game loop: poll snapshot, apply state, flush input
	var snapshot: Variant = SimBridge.poll_snapshot()
	if snapshot != null:
		var old_pos := GameState.player_position
		GameState.apply_snapshot(snapshot)

		# #501: Detect teleport (large position jump > 5 tiles) and trigger fade
		if _camera_anchored and _detect_teleport(old_pos, GameState.player_position):
			_teleport_transition()

		# Late anchor: live mode — first snapshot arrives during _process.
		# Smoothing is already OFF (disabled in _ready), so setting
		# global_position takes effect immediately with no lerp.
		if not _camera_anchored:
			camera.global_position = GameState.player_position * Constants.TILE_SIZE
			_camera_anchored = true

		# #559: Dispatch snapshot to registered handlers (router pattern).
		# Always-run handlers update child nodes; keyed handlers fire for present fields.
		_router.dispatch(snapshot)

	# Track camera to player (D-015: locked, fixed-north).
	# #117: Manual exponential smoothing — same pattern as EntityRenderer.LERP_SPEED.
	# Teleport (flag set by _teleport_transition): snap immediately, resume lerp next frame.
	# Init: camera already snapped in _ready() or late-anchor path above.
	if _camera_anchored:
		var target := GameState.player_position * Constants.TILE_SIZE
		if _teleport_in_progress:
			camera.global_position = target
			_teleport_in_progress = false
		else:
			var weight := 1.0 - exp(-Constants.CAMERA_SMOOTHING_SPEED * delta)
			camera.global_position = camera.global_position.lerp(target, weight)

	# Send queued input to simulation
	# #507: Server-bound inputs are accumulated into _pending_record_inputs across frames.
	# At 60fps/10tps, inputs on non-snapshot frames must not be lost from the ring buffer.
	var inputs = InputMapper.flush_queue()
	for input in inputs:
		# #495: F12 WRONG button — client-only, trigger bug report capture
		if input.action == InputMapper.Action.BUG_REPORT:
			if bug_report_dialog and not bug_report_dialog.is_active():
				bug_report_dialog.start_capture()
			continue
		# #264: J — client-only, toggle knowledge journal panel
		if input.action == InputMapper.Action.OPEN_JOURNAL:
			_toggle_journal()
			continue
		# #257: LOAD_GAME — send first, then show loading screen (avoids stuck overlay if send fails)
		if input.action == InputMapper.Action.LOAD_GAME:
			var err := SimBridge.send_input(input)
			_pending_record_inputs.append(input)
			if err == OK and loading_screen:
				loading_screen.show_loading()
			elif err != OK:
				push_error("main.gd: LOAD_GAME send_input failed: %s" % error_string(err))
			continue
		# #528: ESC/OPEN_MENU — client-only, toggle audio settings dialog
		if input.action == InputMapper.Action.OPEN_MENU:
			if settings_dialog:
				if settings_dialog.is_open():
					settings_dialog.close()
				else:
					settings_dialog.open()
			continue
		if input.action == InputMapper.Action.INTERACT:
			# D-057: prefer interaction list (multi-verb), fall back to prompt (v0.1)
			var target_id: int = -1
			var verb: String = ""
			if interaction_list and interaction_list.has_method("get_interaction_target"):
				target_id = interaction_list.get_interaction_target()
				verb = interaction_list.get_selected_verb()
			if target_id < 0 and interaction_prompt:
				target_id = interaction_prompt.get_interaction_target()
				verb = interaction_prompt.get_selected_verb()
			# Always send struct form for Interact (#415) — server expects named fields
			if target_id >= 0:
				input["action_data"] = {
					"target_entity_id": target_id,
					"verb": verb,
				}
			else:
				input["action_data"] = {
					"target_entity_id": null,
					"verb": null,
				}
		SimBridge.send_input(input)
		_pending_record_inputs.append(input)

	# #507: Record tick data to ring buffer — once per server tick (snapshot arrival).
	# Flushes all inputs accumulated since the last snapshot (across multiple display frames),
	# then clears the accumulator for the next tick.
	if snapshot != null and bug_report_dialog and bug_report_dialog.has_method("record_tick"):
		bug_report_dialog.record_tick(
			GameState.current_tick,
			JSON.stringify(GameState.current_snapshot),
			_pending_record_inputs
		)
		_pending_record_inputs.clear()


# OQ-07 (#522): Propagate insert state to all z-layer-6 display nodes.
# Cursor shape still fires (D-056 option a) — only verb labels suppressed.
func _propagate_insert_state() -> void:
	var insert_state := GameState.insert_active
	if cursor_renderer:
		cursor_renderer.set_insert_active(insert_state)
	if interaction_list:
		interaction_list.set_insert_active(insert_state)
	if interaction_prompt:
		interaction_prompt.set_insert_active(insert_state)
	if minimap:
		minimap.set_insert_active(insert_state)
	if star_map:
		star_map.set_insert_active(insert_state)


# D-057: Update interaction list from game state.
# Suppress during dialogue — player is in conversation, verb list is noise.
func _update_interaction_list() -> void:
	if not interaction_list:
		return
	if dialogue_box and dialogue_box.is_dialogue_active():
		if interaction_list.is_showing():
			interaction_list.hide_list()
	else:
		interaction_list.update_from_state()


# D-018 #125: Play close-range sound events — fired once per snapshot tick.
# Each event is passed to AudioManager.play_sound_event() for 2D positional playback
# on the WorldSFX bus. Events with no registered asset are silently skipped (D-038).
# Consume-once: events are cleared after processing so they don't replay if
# _process runs again before the next server tick (D-009 multiplayer-safe pattern).
func _play_close_sound_events() -> void:
	for evt in GameState.close_sound_events:
		if not evt is Dictionary or not evt.has("x") or not evt.has("y"):
			continue
		AudioManager.play_sound_event(
			evt.get("event_type", ""),
			Vector2(float(evt.x), float(evt.y))
		)
	GameState.close_sound_events = []


# D-067: Recognition chime — fires sfx_monologue_chime when a fog entity
# enters the cognitive delay recognition queue for the first time.
# "The chime marks the character's attention shifting" (D-067).
# IDs persist for the session — one chime per entity, no re-trigger on
# fog oscillation or server re-send. Cleared on room change (teleport).
func _play_recognition_chimes() -> void:
	for rec in GameState.pending_recognitions:
		if not rec is Dictionary or not rec.has("entity_id"):
			continue
		var eid: int = rec.entity_id
		if not _known_recognition_ids.has(eid):
			_known_recognition_ids[eid] = true
			AudioManager.play(AudioManager.CHIME_RECOGNITION)


# #590 D-072/D-089: Triangle activation consumer — fires sfx_monologue_chime_urgent once
# per triangle_id. The tell_state on the activated NPC and subsequent proximity monologue
# lines are the visible consequence (D-039 wow moment #2 "The Character's Eye").
# No overlay is shown — the chime is the only client-side reaction (D-039 intent).
func _handle_triangle_crisis_events() -> void:
	var events: Array = GameState.current_snapshot.get("triangle_crisis_events", [])
	for ev in events:
		if not ev is Dictionary or not ev.has("triangle_id"):
			continue
		var tid: int = ev.triangle_id
		if not _known_triangle_ids.has(tid):
			_known_triangle_ids[tid] = true
			AudioManager.play(AudioManager.CHIME_ACTIVATION, AudioManager.BUS_UI_SOUNDS)


# D-073 (#529): Zone ambient crossfade — reads zone_id from GameState.current_zone_id
# (extracted in apply_snapshot(), server-authoritative per D-020).
# Calls AudioManager.set_zone() when zone changes (AudioManager handles crossfade).
func _update_zone() -> void:
	var zone := GameState.current_zone_id
	if zone != _current_zone:
		_current_zone = zone
		AudioManager.set_zone(zone)


# D-071 (#530): ListeningFocus boost — World SFX +2.5dB when stationary 30+ ticks.
# Uses AudioManager.get_active_dip() as single source of truth (no separate flag).
# Only activates when no other dip (dialogue/confrontation) is running.
# Only deactivates its own dip — never touches dialogue/confrontation.
# D-070: no UI indicator — the boost is "felt, not computed."
func _update_listening_focus() -> void:
	var current_dip := AudioManager.get_active_dip()
	var threshold_met := GameState.stationary_ticks >= LISTENING_FOCUS_TICKS
	if threshold_met and current_dip == "":
		AudioManager.apply_dip("listening_focus")
	elif not threshold_met and current_dip == "listening_focus":
		AudioManager.clear_dip()


# Consume-once per tick: show monologue text, then clear.
# Tick guard prevents re-triggering when the same tick is polled multiple
# times (client FPS > sim tick rate).
func _consume_monologue() -> void:
	if GameState.current_monologue == null or not monologue_display:
		return
	if GameState.current_tick == _last_monologue_tick:
		return
	_last_monologue_tick = GameState.current_tick
	var mono: Dictionary = GameState.current_monologue
	monologue_display.show_monologue(
		mono.get("text", ""),
		mono.get("duration_seconds", 5.0),
		mono.get("priority", 2),
		mono.get("is_urgent", false)
	)
	# #502: Amber flash on room reset
	var mono_id: String = mono.get("id", "")
	if mono_id.begins_with("room_reset"):
		_screen_flash(Constants.ENTITY_COLOR_POI, 0.15)
	GameState.current_monologue = null



# Consume-once per tick with ID tracking: show dialogue, then clear.
# Tick guard + is_dialogue_active check prevent re-triggering.
func _consume_dialogue() -> void:
	if GameState.current_dialogue == null or not dialogue_box:
		return
	if GameState.current_tick == _last_dialogue_tick:
		return
	if dialogue_box.is_dialogue_active():
		GameState.current_dialogue = null
		return
	_last_dialogue_tick = GameState.current_tick
	# #264: Close journal when dialogue opens (cannot be open simultaneously)
	if journal_panel and journal_panel.has_method("close"):
		journal_panel.close()
	var dlg: Dictionary = GameState.current_dialogue
	_last_dialogue_npc_id = dlg.get("npc_entity_id", -1)
	_last_dialogue_npc_name = dlg.get("npc_name", "")
	dialogue_box.show_dialogue(
		dlg.get("npc_name", ""),
		dlg.get("speech", ""),
		dlg.get("options", []),
		_last_dialogue_npc_id
	)
	GameState.current_dialogue = null


# #535: Consume overheard NPC-NPC conversation events (D-078).
# Each event carries pre-occluded text — render verbatim in the dialogue log.
func _consume_conversation_events() -> void:
	if not dialogue_box:
		return
	for event in GameState.conversation_events:
		dialogue_box.append_conversation_event(event)
	GameState.conversation_events = []


# #535: Handle conversation_ended events — notify dialogue box to stop tracking pairs.
func _consume_conversation_ended() -> void:
	if not dialogue_box:
		return
	for event in GameState.conversation_ended:
		dialogue_box.on_conversation_ended(event)
	GameState.conversation_ended = []


# #535: Consume dialogue_response — NPC follow-up line after player picks an option.
# Updates dialogue_box entity display registry with speaker identity from the wire.
func _consume_dialogue_response() -> void:
	if GameState.dialogue_response == null or not dialogue_box:
		return
	var dr: Dictionary = GameState.dialogue_response
	# v0.1: falls back to _last_dialogue_npc_id if wire omits speaker_entity_id.
	# Edge case: fast re-engagement with a different NPC could misattribute — low probability.
	var speaker_entity_id: int = dr.get("speaker_entity_id", _last_dialogue_npc_id)
	var speaker_color_index: int = dr.get("speaker_color_index", -1)
	var speaker_name: String = dr.get("speaker_name", _last_dialogue_npc_name)
	dialogue_box.update_entity_display(speaker_entity_id, speaker_name, speaker_color_index)
	dialogue_box.append_dialogue_response(speaker_name, dr.get("text", ""), speaker_entity_id)
	GameState.dialogue_response = null


# #554/#257: Show save/load result notification; hide loading screen on load complete.
func _consume_save_result() -> void:
	if GameState.save_result == null:
		return
	var result: Dictionary = GameState.save_result
	GameState.save_result = null  # consume once
	# #257: Dismiss loading screen regardless of success/failure
	if loading_screen:
		loading_screen.hide_loading()
	var msg: String
	if result.get("success", false):
		if result.get("kind", "") == "save":
			msg = UIStrings.get_text("notifications.save_complete")
		else:
			msg = UIStrings.get_text("notifications.load_complete")
	else:
		if result.get("kind", "") == "save":
			msg = UIStrings.get_text("notifications.save_failed")
		else:
			msg = UIStrings.get_text("notifications.load_failed")
	if monologue_display:
		monologue_display.show_notification(msg)


# #581: Forward debug_response from server to the debug console.
func _consume_debug_response() -> void:
	if GameState.debug_response == null or not debug_console:
		return
	debug_console.append_response(GameState.debug_response)
	GameState.debug_response = null


# D-061: Handle dialogue option selection → send to server
func _on_dialogue_option_selected(response_id: String, text: String) -> void:
	SimBridge.send_input({
		"action": InputMapper.Action.INTERACT,
		"timestamp_msec": Time.get_ticks_msec(),
		"action_data": {
			"target_entity_id": null,
			"verb": "DialogueResponse",
			"response_id": response_id,
		},
	})


# D-063: Handle confrontation beat monologue → show on monologue display (layer 7)
# Confrontation lines are high-priority (3) and urgent — full opacity, elevated colour.
# Tick guard deduplicates if dialogue box emits the signal multiple times in one tick.
func _on_confrontation_monologue(text: String, duration: float) -> void:
	if not monologue_display:
		return
	if GameState.current_tick == _last_confrontation_tick:
		return
	_last_confrontation_tick = GameState.current_tick
	monologue_display.show_monologue(text, duration, 3, true)


# D-061: Auto-pause on dialogue open — routed through input recording (#507, Tyre #3)
func _on_dialogue_pause_requested() -> void:
	var input := {"action": InputMapper.Action.PAUSE, "timestamp_msec": Time.get_ticks_msec()}
	SimBridge.send_input(input)
	_pending_record_inputs.append(input)


# D-061: Auto-unpause on dialogue close — routed through input recording (#507, Tyre #3)
func _on_dialogue_unpause_requested() -> void:
	var input := {"action": InputMapper.Action.UNPAUSE, "timestamp_msec": Time.get_ticks_msec()}
	SimBridge.send_input(input)
	_pending_record_inputs.append(input)


# D-064: Handle walk-away → send WalkAway{npc_id} to server
func _on_dialogue_dismissed() -> void:
	SimBridge.send_input({
		"action": InputMapper.Action.INTERACT,
		"timestamp_msec": Time.get_ticks_msec(),
		"action_data": {
			"target_entity_id": _last_dialogue_npc_id if _last_dialogue_npc_id >= 0 else null,
			"verb": "WalkAway",
		},
	})


# D-020 (#558): Coordinator handles dialogue state changes from dialogue_box.
# Synchronous signal — GameState.dialogue_active updates same frame (D-064).
func _on_dialogue_state_changed(active: bool) -> void:
	GameState.dialogue_active = active


# D-020 (#558): Coordinator routes audio dip requests from dialogue_box.
func _on_audio_dip_requested(profile: String) -> void:
	AudioManager.apply_dip(profile)


# D-020 (#558): Coordinator routes audio dip clear from dialogue_box.
func _on_audio_dip_cleared() -> void:
	AudioManager.clear_dip()


# #496: Finalize gauntlet stats on disconnect
func _on_connection_state_changed(old_state: SimBridge.ConnectionState, new_state: SimBridge.ConnectionState) -> void:
	if new_state == SimBridge.ConnectionState.DISCONNECTED and gauntlet_hud:
		gauntlet_hud.finalize()


# #257: Deferred LOAD_GAME dispatch — fires once when SimBridge reaches CONNECTED.
# pending_load_path is set by main_menu.gd before scene change.
func _on_sim_connected_for_load(_old_state: SimBridge.ConnectionState, new_state: SimBridge.ConnectionState) -> void:
	if new_state != SimBridge.ConnectionState.CONNECTED:
		return
	if SimBridge.connection_state_changed.is_connected(_on_sim_connected_for_load):
		SimBridge.connection_state_changed.disconnect(_on_sim_connected_for_load)
	_dispatch_pending_load()


func _dispatch_pending_load() -> void:
	var load_path := GameState.pending_load_path
	if load_path.is_empty():
		return
	GameState.pending_load_path = ""
	var err := SimBridge.send_input({
		"action": InputMapper.Action.LOAD_GAME,
		"timestamp_msec": Time.get_ticks_msec(),
		"action_data": {"path": load_path},
	})
	if err != OK:
		push_error("main.gd: failed to send LOAD_GAME after connection — %s" % error_string(err))
		if loading_screen:
			loading_screen.hide_loading(false)


# #501: Detect large position jump indicating a teleport (not normal movement).
const TELEPORT_DISTANCE_THRESHOLD: float = 5.0

func _detect_teleport(old_pos: Vector2, new_pos: Vector2) -> bool:
	return old_pos.distance_to(new_pos) > TELEPORT_DISTANCE_THRESHOLD


# #501: Gauntlet dev teleport transition — snap camera + 0.3s fade-from-black.
# Clears dialogue/monologue/interaction state (server clears its side too).
# Scoped to Gauntlet testing only — production fast-travel uses diegetic gates.
func _teleport_transition() -> void:
	# Set teleport flag — the camera tracking block in _process() will snap
	# to the player's new position this frame (no lerp). Flag clears after snap.
	_camera_anchored = true
	_teleport_in_progress = true

	# Clear client-side buffers
	GameState.current_monologue = null
	GameState.current_dialogue = null
	GameState.dialogue_active = false
	_known_recognition_ids.clear()  # D-067: reset chimes for new room
	_known_triangle_ids.clear()     # #590: reset activation chimes for new room
	if dialogue_box and dialogue_box.is_dialogue_active():
		dialogue_box.hide_dialogue()

	# Fade from black: instant black overlay, fades to transparent over 0.3s
	if _flash_rect and is_instance_valid(_flash_rect):
		_flash_rect.queue_free()
	_flash_rect = ColorRect.new()
	_flash_rect.color = Color(0, 0, 0, 1.0)
	_flash_rect.anchors_preset = Control.PRESET_FULL_RECT
	_flash_rect.mouse_filter = Control.MOUSE_FILTER_IGNORE
	$UILayer.add_child(_flash_rect)
	var tween := create_tween()
	tween.tween_property(_flash_rect, "color:a", 0.0, 0.3)
	tween.tween_callback(_flash_rect.queue_free)


# #174: Consume examine result — show overlay when server sends character-filtered observation.
# Clears after display (single-consume). Dismiss examine when dialogue opens.
func _consume_examine_result() -> void:
	if GameState.current_examine_result == null or not examine_display:
		return
	var result: Dictionary = GameState.current_examine_result
	# Dismiss existing examine result if dialogue is active (focus priority)
	if dialogue_box and dialogue_box.is_dialogue_active():
		if examine_display.has_method("dismiss"):
			examine_display.dismiss()
	else:
		if examine_display.has_method("show_result"):
			examine_display.show_result(result)
	GameState.current_examine_result = null


# #264: Toggle journal panel. Called from input handler when J key pressed.
func _toggle_journal() -> void:
	if not journal_panel:
		return
	# Journal and dialogue cannot be open simultaneously (sprint briefing)
	if dialogue_box and dialogue_box.is_dialogue_active():
		return
	if journal_panel.has_method("toggle"):
		journal_panel.toggle()


# #502: Full-screen color flash — fades from color to transparent over duration.
# Used for room reset amber flash. Creates ephemeral ColorRect on UILayer.
func _screen_flash(color: Color, duration: float) -> void:
	if _flash_rect and is_instance_valid(_flash_rect):
		_flash_rect.queue_free()
	_flash_rect = ColorRect.new()
	_flash_rect.color = Color(color.r, color.g, color.b, 0.4)
	_flash_rect.anchors_preset = Control.PRESET_FULL_RECT
	_flash_rect.mouse_filter = Control.MOUSE_FILTER_IGNORE
	$UILayer.add_child(_flash_rect)
	var tween := create_tween()
	tween.tween_property(_flash_rect, "color:a", 0.0, duration)
	tween.tween_callback(_flash_rect.queue_free)