Added title screen and onboarding prompt

scenes/elevator_panel.gd

@@ -4,6 +4,7 @@ extends PanelContainer
 var current_floor := 10
 var saved_count := 0
 var doors_closing_flag := false
+var _onboarded := false
 
 # Survivors per floor: more at top, fewer as you descend
 var base_survivors := 2
@@ -28,12 +29,14 @@ func _ready():
 	screen.pulse_blocked.connect(_on_pulse_blocked)
 	screen.doors_closing.connect(_on_doors_closing)
 
-	_start_floor()
+	EventBus.game_started.connect(_start_floor)
 
 func _unhandled_input(event):
 	if event is InputEventKey and event.pressed and not event.echo:
 		if event.keycode == KEY_SPACE:
 			_on_block_pressed()
+		elif event.keycode == KEY_R:
+			get_tree().reload_current_scene()
 
 # --- Floor lifecycle ---
 
@@ -52,6 +55,17 @@ func _start_floor():
 
 	var screen = $PanelMargin/PanelColumn/Screen
 	screen.start()
+
+	if not _onboarded:
+		_onboarded = true
+		screen.show_onboarding("BLOCK\nIN GREEN ZONE")
+		get_tree().create_timer(3.0).timeout.connect(
+			func():
+				screen.end_onboarding()
+				screen.launch_pulse(),
+			CONNECT_ONE_SHOT
+		)
+	else:
 		screen.launch_pulse()  # first survivor arrives
 
 # --- Input ---

scenes/game.tscn

@@ -9,6 +9,7 @@
 [ext_resource type="AudioStream" uid="uid://dgqb1rovgwuan" path="res://audio/ElevatorClose1.wav" id="6_gee14"]
 [ext_resource type="PackedScene" path="res://scenes/component_spawn.tscn" id="9_0tnpc"]
 [ext_resource type="PackedScene" path="res://scenes/end_screen.tscn" id="10_endsc"]
+[ext_resource type="PackedScene" path="res://scenes/title_screen.tscn" id="11_title"]
 
 [node name="Game" type="Node3D" unique_id=1456297160]
 script = ExtResource("1_lbhrr")
@@ -38,3 +39,5 @@ stream = ExtResource("6_gee14")
 [node name="ComponentSpawn" parent="." unique_id=649225939 instance=ExtResource("9_0tnpc")]
 
 [node name="EndScreen" parent="." instance=ExtResource("10_endsc")]
+
+[node name="TitleScreen" parent="." instance=ExtResource("11_title")]

scenes/screen.gd

@@ -163,3 +163,12 @@ func show_loss(message: String):
 	$TargetZone.visible = false
 	$AIFace.text = message
 	flash(Color.RED)
+
+func show_onboarding(msg: String):
+	$AIFace.add_theme_font_size_override("font_size", 18)
+	$AIFace.size = Vector2(size.x, 60)
+	$AIFace.text = msg
+
+func end_onboarding():
+	$AIFace.add_theme_font_size_override("font_size", 32)
+	$AIFace.size = Vector2(size.x, 30)

scenes/title_screen.gd

@@ -0,0 +1,14 @@
+extends CanvasLayer
+
+func _ready():
+	get_tree().paused = true
+
+func _unhandled_input(event):
+	if event is InputEventKey and event.pressed and not event.echo:
+		if event.keycode == KEY_SPACE or event.keycode == KEY_ENTER:
+			_start()
+
+func _start():
+	get_tree().paused = false
+	EventBus.game_started.emit()
+	queue_free()

scenes/title_screen.gd.uid

@@ -0,0 +1 @@
+uid://ba3of2ykdjqcl

scenes/title_screen.tscn

@@ -0,0 +1,55 @@
+[gd_scene load_steps=3 format=3]
+
+[ext_resource type="Script" path="res://scenes/title_screen.gd" id="1"]
+
+[sub_resource type="StyleBoxFlat" id="CardStyle"]
+bg_color = Color(0.05, 0.18, 0.05, 1)
+border_width_left = 3
+border_width_top = 3
+border_width_right = 3
+border_width_bottom = 3
+border_color = Color(0.2, 1, 0.2, 1)
+corner_radius_top_left = 6
+corner_radius_top_right = 6
+corner_radius_bottom_right = 6
+corner_radius_bottom_left = 6
+
+[node name="TitleScreen" type="CanvasLayer"]
+layer = 20
+process_mode = 3
+script = ExtResource("1")
+
+[node name="Dim" type="ColorRect" parent="."]
+anchor_right = 1.0
+anchor_bottom = 1.0
+mouse_filter = 2
+color = Color(0, 0, 0, 0.85)
+
+[node name="Center" type="CenterContainer" parent="."]
+anchor_right = 1.0
+anchor_bottom = 1.0
+mouse_filter = 1
+
+[node name="Card" type="PanelContainer" parent="Center"]
+theme_override_styles/panel = SubResource("CardStyle")
+
+[node name="Margin" type="MarginContainer" parent="Center/Card"]
+theme_override_constants/margin_left = 64
+theme_override_constants/margin_right = 64
+theme_override_constants/margin_top = 48
+theme_override_constants/margin_bottom = 48
+
+[node name="Column" type="VBoxContainer" parent="Center/Card/Margin"]
+theme_override_constants/separation = 24
+
+[node name="Title" type="Label" parent="Center/Card/Margin/Column"]
+text = "ELEVATOR"
+horizontal_alignment = 1
+theme_override_colors/font_color = Color(0.2, 1, 0.2, 1)
+theme_override_font_sizes/font_size = 72
+
+[node name="Prompt" type="Label" parent="Center/Card/Margin/Column"]
+text = "PRESS SPACE TO START"
+horizontal_alignment = 1
+theme_override_colors/font_color = Color(0.5, 1, 0.5, 1)
+theme_override_font_sizes/font_size = 28

scripts/event_bus.gd

@@ -6,6 +6,7 @@ signal floor_changed(floor_num: int)
 signal saved_changed(count: int)
 signal score_changed(new_score: int)
 signal people_changed(count: int, threshold: int)
+signal game_started
 signal game_won
 signal game_lost
 signal floor_started(survivor_count: int)