add whistle to train

core/main_scene_ui/main_scene_ui.gd

@@ -1,6 +1,5 @@
 extends Control
 
-
 @onready var game_menu: Control = $%GameMenu
 @onready var game_menu_panel: Control = $%GameMenuPanel
 @onready var menu_icon_button: Button = $%MenuIconButton
@@ -89,6 +88,8 @@ func _on_weather_row_on_option_changed(data: String) -> void:
 			pick_random_weather()
 		_:
 			pass
+	
+	AchievementManager.is_unlocked("ACH_CHANGE_METEO")
 
 func pick_random_weather() -> void:
 	var valid_buttons = []
@@ -166,6 +167,8 @@ func _on_photo_taken_finished() -> void:
 	await tween.finished
 	photo_mode_black_screen.hide()
 	GameState.on_photo_mode_black_screen_disappeared.emit()
+	StatsManager.add_int("stat_photo_number", 1)
+	StatsManager.store()
 
 func hide_ui_for_photo_mode() -> void:
 	TweenFX.fade_out(weather_row, 0.25)

core/main_scene_ui/total_stats_display.gd

@@ -0,0 +1,70 @@
+## Updates total elapsed time and train distance labels.
+class_name TotalStatsDisplay
+extends Node
+
+const RAILS_SCRIPT = preload("res://core/biome_generator/rails.gd")
+const SECONDS_PER_MINUTE: int = 60
+const MINUTES_PER_HOUR: int = 60
+const HOURS_PER_DAY: int = 24
+#DISTANCE_KM_PER_UNIT is taken from rails.gd constant
+
+@export var time_label_path: NodePath
+@export var distance_label_path: NodePath
+@export var rail_path: NodePath
+
+var _elapsed_seconds: float = 0.0
+var _total_distance_km: float = 0.0
+var _last_train_progress: float = -1.0
+
+@onready var _time_label: Label = get_node_or_null(time_label_path) as Label
+@onready var _distance_label: Label = get_node_or_null(distance_label_path) as Label
+@onready var _rail_path: Path3D = get_node_or_null(rail_path) as Path3D
+
+
+func _ready() -> void:
+	_update_time_label()
+	_update_distance_label()
+
+
+func _process(delta: float) -> void:
+	_elapsed_seconds += delta
+	_update_total_distance()
+	_update_time_label()
+	_update_distance_label()
+
+
+func _update_total_distance() -> void:
+	if _rail_path == null or _rail_path.curve == null:
+		return
+
+	var current_train_progress: float = float(_rail_path.get("train_progress"))
+	if _last_train_progress < 0.0:
+		_last_train_progress = current_train_progress
+		return
+
+	var total_length: float = _rail_path.curve.get_baked_length()
+	if total_length <= 0.0:
+		return
+
+	var progress_delta: float = absf(current_train_progress - _last_train_progress)
+	var wrapped_progress_delta: float = minf(progress_delta, total_length - progress_delta)
+	_total_distance_km += wrapped_progress_delta * RAILS_SCRIPT.DISTANCE_KM_PER_UNIT
+	_last_train_progress = current_train_progress
+
+
+func _update_time_label() -> void:
+	if _time_label == null:
+		return
+
+	var total_minutes: int = int(floor(_elapsed_seconds / SECONDS_PER_MINUTE))
+	var days: int = floori(float(total_minutes) / float(MINUTES_PER_HOUR * HOURS_PER_DAY))
+	var hours: int = floori(float(total_minutes) / float(MINUTES_PER_HOUR)) % HOURS_PER_DAY
+	var minutes: int = total_minutes % MINUTES_PER_HOUR
+	_time_label.text = "Time %dd %02dh %02dm" % [days, hours, minutes]
+
+
+func _update_distance_label() -> void:
+	if _distance_label == null:
+		return
+
+	_distance_label.text = "Distance %.1f km" % _total_distance_km

core/main_scene_ui/total_stats_display.gd.uid

@@ -0,0 +1 @@
+uid://c2usnexa5x7pg