Add boot flow, save-system skeleton, and Equipment skeleton

boot/: opening_screen (attribution -> title/flavor text placeholder,
explicitly marked TODO for a later real cinematic, skippable by
keypress/click) -> main_menu (Neues Spiel/Fortsetzen/Optionen/Credits/
Beenden, ConfirmationDialog for overwrite-existing-save) -> options_menu
(TabContainer with 4 empty placeholder categories: Grafik/Sound/
Steuerung/Spieloptionen) and credits_screen, both just navigable stubs.
project.godot's run/main_scene now points at boot/opening_screen.tscn
instead of directly at the gameplay scene.

autoload/save_manager.gd: new SaveManager singleton. Deliberately
minimal — persists only a timestamp to user://savegame.json — but a
real, working has_save()/save_game()/load_game()/start_new_game()
round trip, enough to back the menu's Start/Continue/overwrite-confirm
logic without inventing game state that doesn't exist yet.

player/equipment/: Equipment (Node) + EquipmentItem (Resource) stub
classes per the user's explicit ask for a "class diagram skeleton" to
build on later — exported fields and empty TODO methods, no logic.
Wired as a child of world/island.tscn's real Player (not player.tscn,
which is only a debug prototype scene, not the actual game's player).
player.gd's new `equipment` onready var uses get_node_or_null() since
that child only exists on the real player, not every scene reusing
this script.

Verified headless: all new boot scenes load cleanly, a full boot smoke
test via run/main_scene succeeds, and — since button-click navigation
can't be simulated headlessly — SaveManager's actual save/load/
overwrite/cleanup cycle was exercised directly and behaves correctly
(has_save flips true/false correctly, loaded data matches what was
saved). Manual in-editor check of the menu navigation itself is still
needed and not yet done.

autoload/save_manager.gd

@@ -0,0 +1,37 @@
+extends Node
+
+const SAVE_PATH := "user://savegame.json"
+
+func has_save() -> bool:
+	return FileAccess.file_exists(SAVE_PATH)
+
+func start_new_game() -> void:
+	# TODO: sobald echter Spielzustand existiert (Position, Fortschritt, ...),
+	# hier den frischen Zustand aufbauen statt nur zu speichern.
+	save_game()
+
+func save_game() -> void:
+	var data := {
+		"saved_at_unix": Time.get_unix_time_from_system(),
+	}
+	var file := FileAccess.open(SAVE_PATH, FileAccess.WRITE)
+	if file == null:
+		push_error("Speichern fehlgeschlagen: %s" % FileAccess.get_open_error())
+		return
+	file.store_string(JSON.stringify(data))
+	file.close()
+
+func load_game() -> Dictionary:
+	if not has_save():
+		push_warning("Kein Spielstand vorhanden.")
+		return {}
+	var file := FileAccess.open(SAVE_PATH, FileAccess.READ)
+	var content := file.get_as_text()
+	file.close()
+	var parsed = JSON.parse_string(content)
+	if typeof(parsed) != TYPE_DICTIONARY:
+		push_error("Spielstand-Datei ist beschädigt.")
+		return {}
+	# TODO: geladene Werte tatsächlich auf Spieler/Welt anwenden, sobald es
+	# etwas Sinnvolles zu laden gibt.
+	return parsed

autoload/save_manager.gd.uid

@@ -0,0 +1 @@
+uid://dhxbb41fxvo3q

boot/credits_screen.gd

@@ -0,0 +1,6 @@
+extends Control
+
+@onready var back_button: Button = $BackButton
+
+func _ready() -> void:
+	back_button.pressed.connect(func(): get_tree().change_scene_to_file("res://boot/main_menu.tscn"))

boot/credits_screen.gd.uid

@@ -0,0 +1 @@
+uid://cgyurqw4rcvn0

boot/credits_screen.tscn

@@ -0,0 +1,38 @@
+[gd_scene format=3]
+
+[ext_resource type="Script" path="res://boot/credits_screen.gd" id="1_credits"]
+
+[node name="CreditsScreen" type="Control"]
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+script = ExtResource("1_credits")
+
+[node name="TitleLabel" type="Label" parent="."]
+offset_left = 40.0
+offset_top = 30.0
+offset_right = 400.0
+offset_bottom = 70.0
+text = "Credits"
+
+[node name="ScrollContainer" type="ScrollContainer" parent="."]
+offset_left = 40.0
+offset_top = 90.0
+offset_right = 1240.0
+offset_bottom = 620.0
+
+[node name="CreditsLabel" type="Label" parent="ScrollContainer"]
+layout_mode = 2
+text = "Programmierung: TODO
+Artwork: TODO
+Musik/Sound: TODO
+Erstellt mit Godot Engine"
+
+[node name="BackButton" type="Button" parent="."]
+offset_left = 40.0
+offset_top = 640.0
+offset_right = 160.0
+offset_bottom = 675.0
+text = "Zurück"

boot/main_menu.gd

@@ -0,0 +1,45 @@
+extends Control
+
+const GAMEPLAY_SCENE := "res://world/island.tscn"
+
+@onready var start_button: Button = $Panel/ButtonList/StartButton
+@onready var continue_button: Button = $Panel/ButtonList/ContinueButton
+@onready var options_button: Button = $Panel/ButtonList/OptionsButton
+@onready var credits_button: Button = $Panel/ButtonList/CreditsButton
+@onready var exit_button: Button = $Panel/ButtonList/ExitButton
+@onready var overwrite_dialog: ConfirmationDialog = $OverwriteConfirmDialog
+
+func _ready() -> void:
+	continue_button.disabled = not SaveManager.has_save()
+	start_button.pressed.connect(_on_start_pressed)
+	continue_button.pressed.connect(_on_continue_pressed)
+	options_button.pressed.connect(_on_options_pressed)
+	credits_button.pressed.connect(_on_credits_pressed)
+	exit_button.pressed.connect(_on_exit_pressed)
+	overwrite_dialog.confirmed.connect(_on_overwrite_confirmed)
+
+func _on_start_pressed() -> void:
+	if SaveManager.has_save():
+		overwrite_dialog.popup_centered()
+	else:
+		_start_new_game()
+
+func _on_overwrite_confirmed() -> void:
+	_start_new_game()
+
+func _start_new_game() -> void:
+	SaveManager.start_new_game()
+	get_tree().change_scene_to_file(GAMEPLAY_SCENE)
+
+func _on_continue_pressed() -> void:
+	SaveManager.load_game()
+	get_tree().change_scene_to_file(GAMEPLAY_SCENE)
+
+func _on_options_pressed() -> void:
+	get_tree().change_scene_to_file("res://boot/options_menu.tscn")
+
+func _on_credits_pressed() -> void:
+	get_tree().change_scene_to_file("res://boot/credits_screen.tscn")
+
+func _on_exit_pressed() -> void:
+	get_tree().quit()

boot/main_menu.gd.uid

@@ -0,0 +1 @@
+uid://b210xm2monnj3

boot/main_menu.tscn

@@ -0,0 +1,65 @@
+[gd_scene format=3]
+
+[ext_resource type="Script" path="res://boot/main_menu.gd" id="1_menu"]
+
+[node name="MainMenu" type="Control"]
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+script = ExtResource("1_menu")
+
+[node name="Panel" type="Panel" parent="."]
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+offset_left = -160.0
+offset_top = -190.0
+offset_right = 160.0
+offset_bottom = 190.0
+
+[node name="TitleLabel" type="Label" parent="Panel"]
+anchor_right = 1.0
+offset_top = 10.0
+offset_bottom = 60.0
+text = "WayfarersWanderer"
+horizontal_alignment = 1
+vertical_alignment = 1
+
+[node name="ButtonList" type="VBoxContainer" parent="Panel"]
+anchor_right = 1.0
+anchor_bottom = 1.0
+offset_left = 20.0
+offset_top = 70.0
+offset_right = -20.0
+offset_bottom = -20.0
+theme_override_constants/separation = 10
+
+[node name="StartButton" type="Button" parent="Panel/ButtonList"]
+layout_mode = 2
+text = "Neues Spiel"
+
+[node name="ContinueButton" type="Button" parent="Panel/ButtonList"]
+layout_mode = 2
+text = "Fortsetzen"
+
+[node name="OptionsButton" type="Button" parent="Panel/ButtonList"]
+layout_mode = 2
+text = "Optionen"
+
+[node name="CreditsButton" type="Button" parent="Panel/ButtonList"]
+layout_mode = 2
+text = "Credits"
+
+[node name="ExitButton" type="Button" parent="Panel/ButtonList"]
+layout_mode = 2
+text = "Beenden"
+
+[node name="OverwriteConfirmDialog" type="ConfirmationDialog" parent="."]
+title = "Spielstand überschreiben?"
+initial_position = 1
+dialog_text = "Ein Spielstand existiert bereits. Trotzdem überschreiben?"
+ok_button_text = "Ja"
+cancel_button_text = "Nein"

boot/opening_screen.gd

@@ -0,0 +1,29 @@
+extends Control
+## Platzhalter-Boot-Screen: Attribution -> Titel mit Flavor-Text -> Hauptmenü.
+## TODO: später durch eine echte Opening-Cinematic ersetzen.
+
+@export var attribution_seconds: float = 2.0
+@export var title_seconds: float = 2.5
+
+@onready var attribution_label: Label = $AttributionLabel
+@onready var title_label: Label = $TitleLabel
+@onready var timer: Timer = $Timer
+
+var _stage: int = 0
+
+func _ready() -> void:
+	timer.timeout.connect(_advance)
+	timer.start(attribution_seconds)
+
+func _unhandled_input(event: InputEvent) -> void:
+	if (event is InputEventKey and event.pressed) or (event is InputEventMouseButton and event.pressed):
+		_advance()
+
+func _advance() -> void:
+	_stage += 1
+	if _stage == 1:
+		attribution_label.visible = false
+		title_label.visible = true
+		timer.start(title_seconds)
+	else:
+		get_tree().change_scene_to_file("res://boot/main_menu.tscn")

boot/opening_screen.gd.uid

@@ -0,0 +1 @@
+uid://6s84w6vbvidp

boot/opening_screen.tscn

@@ -0,0 +1,38 @@
+[gd_scene format=3]
+
+[ext_resource type="Script" path="res://boot/opening_screen.gd" id="1_open"]
+
+[node name="OpeningScreen" type="Control"]
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+script = ExtResource("1_open")
+
+[node name="AttributionLabel" type="Label" parent="."]
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+text = "Erstellt mit Godot Engine
+Ein Spiel von TODO: Autor:in"
+horizontal_alignment = 1
+vertical_alignment = 1
+
+[node name="TitleLabel" type="Label" parent="."]
+visible = false
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+text = "WayfarersWanderer
+
+TODO: Flavor-Text"
+horizontal_alignment = 1
+vertical_alignment = 1
+
+[node name="Timer" type="Timer" parent="."]
+one_shot = true

boot/options_menu.gd

@@ -0,0 +1,6 @@
+extends Control
+
+@onready var back_button: Button = $BackButton
+
+func _ready() -> void:
+	back_button.pressed.connect(func(): get_tree().change_scene_to_file("res://boot/main_menu.tscn"))

boot/options_menu.gd.uid

@@ -0,0 +1 @@
+uid://bt1qf4bx8rbhs

boot/options_menu.tscn

@@ -0,0 +1,74 @@
+[gd_scene format=3]
+
+[ext_resource type="Script" path="res://boot/options_menu.gd" id="1_options"]
+
+[node name="OptionsMenu" type="Control"]
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+script = ExtResource("1_options")
+
+[node name="TitleLabel" type="Label" parent="."]
+offset_left = 40.0
+offset_top = 30.0
+offset_right = 400.0
+offset_bottom = 70.0
+text = "Optionen"
+
+[node name="Categories" type="TabContainer" parent="."]
+offset_left = 40.0
+offset_top = 90.0
+offset_right = 1240.0
+offset_bottom = 620.0
+
+[node name="Grafik" type="Control" parent="Categories"]
+layout_mode = 2
+
+[node name="Label" type="Label" parent="Categories/Grafik"]
+offset_left = 20.0
+offset_top = 20.0
+offset_right = 500.0
+offset_bottom = 50.0
+text = "TODO: Grafik-Einstellungen"
+
+[node name="Sound" type="Control" parent="Categories"]
+visible = false
+layout_mode = 2
+
+[node name="Label" type="Label" parent="Categories/Sound"]
+offset_left = 20.0
+offset_top = 20.0
+offset_right = 500.0
+offset_bottom = 50.0
+text = "TODO: Sound-Einstellungen"
+
+[node name="Steuerung" type="Control" parent="Categories"]
+visible = false
+layout_mode = 2
+
+[node name="Label" type="Label" parent="Categories/Steuerung"]
+offset_left = 20.0
+offset_top = 20.0
+offset_right = 500.0
+offset_bottom = 50.0
+text = "TODO: Steuerungs-Einstellungen"
+
+[node name="Spieloptionen" type="Control" parent="Categories"]
+visible = false
+layout_mode = 2
+
+[node name="Label" type="Label" parent="Categories/Spieloptionen"]
+offset_left = 20.0
+offset_top = 20.0
+offset_right = 500.0
+offset_bottom = 50.0
+text = "TODO: Spieloptionen"
+
+[node name="BackButton" type="Button" parent="."]
+offset_left = 40.0
+offset_top = 640.0
+offset_right = 160.0
+offset_bottom = 675.0
+text = "Zurück"

player/equipment/equipment.gd

@@ -0,0 +1,15 @@
+extends Node
+class_name Equipment
+## Verwaltet die aktuell ausgerüsteten Gegenstände des Spielers.
+## TODO: Slot-Regeln definieren, sobald Ausrüstungsgegenstände existieren.
+
+var equipped_items: Array[EquipmentItem] = []
+
+func equip(item: EquipmentItem) -> void:
+	pass # TODO: Gegenstand ausrüsten (Slot-Logik, Ersetzen, Signale, ...)
+
+func unequip(item: EquipmentItem) -> void:
+	pass # TODO: Gegenstand ablegen
+
+func get_equipped() -> Array[EquipmentItem]:
+	return equipped_items

player/equipment/equipment.gd.uid

@@ -0,0 +1 @@
+uid://c6rkww7tbx5dc

player/equipment/equipment_item.gd

@@ -0,0 +1,7 @@
+extends Resource
+class_name EquipmentItem
+## Basis-Ressource für zukünftige Ausrüstungsgegenstände (Waffen, Rüstung, ...).
+## TODO: konkrete Item-Typen als eigene Resource-Subklassen anlegen, sobald nötig.
+
+@export var item_name: String = ""
+@export var icon: Texture2D

player/equipment/equipment_item.gd.uid

@@ -0,0 +1 @@
+uid://xchpeoiegfv3

player/player.gd

@@ -6,6 +6,8 @@ extends CharacterBody3D
 var camera_rig: Node3D
 
 @onready var sprite: AnimatedSprite3D = $AnimatedSprite3D
+# Nur in world/island.tscn vorhanden, nicht in diesem Debug-Prototyp -> optional
+@onready var equipment: Equipment = get_node_or_null("Equipment")
 
 func _ready() -> void:
 	camera_rig = get_tree().get_first_node_in_group("camera_rig")

project.godot

@@ -11,13 +11,14 @@ config_version=5
 [application]
 
 config/name="WayfarersWanderer"
-run/main_scene="uid://bju1lndv8l1mo"
+run/main_scene="res://boot/opening_screen.tscn"
 config/features=PackedStringArray("4.6", "GL Compatibility")
 
 [autoload]
 
 InteractionManager="*uid://cbg1abspfwgxo"
 InteractionUI="*uid://cmg2008xfel2v"
+SaveManager="*res://autoload/save_manager.gd"
 
 [display]
 

world/island.tscn

@@ -4,6 +4,7 @@
 [ext_resource type="Script" uid="uid://cpo34pbk0145n" path="res://terrain.gd" id="1_terrain"]
 [ext_resource type="Texture2D" uid="uid://epcqli428yem" path="res://assets/sprites/player/debug_player.png" id="2_h2yge"]
 [ext_resource type="Script" uid="uid://b0y06y7c0bihj" path="res://camera_rig.gd" id="3_h2yge"]
+[ext_resource type="Script" path="res://player/equipment/equipment.gd" id="4_equip"]
 [ext_resource type="PackedScene" uid="uid://be6ufrc3dsjge" path="res://poi.tscn" id="5_lquwl"]
 [ext_resource type="PackedScene" path="res://world/poi/poi_gate.tscn" id="5_gate"]
 [ext_resource type="PackedScene" uid="uid://dmhs1oy1kh6hi" path="res://assets/models/mountain.glb" id="6_7mycd"]
@@ -190,6 +191,9 @@ texture_filter = 0
 sprite_frames = SubResource("SpriteFrames_82xsv")
 animation = &"idle"
 
+[node name="Equipment" type="Node" parent="Player"]
+script = ExtResource("4_equip")
+
 [node name="CameraRig" type="Node3D" parent="." unique_id=1094565525 groups=["camera_rig"]]
 script = ExtResource("3_h2yge")
 target = NodePath("../Player")