feat: expand progression and multiplayer systems

Add named save slots, progression import/export, and a unified play flow. Add live friend requests, presence, invitations, and relationship controls without durable discovery-server social storage. Advance the network protocol with isolated channels, movement reconciliation, late-join recovery, fishing replication, and animation synchronization. Preserve per-species catch totals, refine generated-world startup and water recovery, and complete the related input and interface improvements.

settings/keyboard_mouse_mapping_manager.gd

@@ -177,6 +177,17 @@ func get_active_bindings() -> Dictionary:
 	return _default_bindings.duplicate(true)
 
 
+func get_binding(role: StringName) -> Dictionary:
+	var binding: Variant = get_active_bindings().get(str(role), {})
+	if typeof(binding) != TYPE_DICTIONARY:
+		return {}
+	return (binding as Dictionary).duplicate(true)
+
+
+func get_binding_label(role: StringName) -> String:
+	return binding_label(get_binding(role))
+
+
 func get_role_label(role: StringName) -> String:
 	return str(ROLE_LABELS.get(role, str(role).replace("_", " ")))
 

settings/player_settings.gd

@@ -32,6 +32,7 @@ const UI_COMPACT_RENDER_HEIGHTS: Array[int] = [0, 408, 336, 264, 192]
 @export_range(0.001, 0.012, 0.0005) var mouse_camera_sensitivity: float = 0.005
 @export_range(0.5, 5.0, 0.1) var controller_camera_sensitivity: float = 2.5
 @export var invert_camera_y: bool = false
+@export var swap_hotbar_camera_scroll: bool = false
 @export var on_screen_keyboard_enabled: bool = false
 @export var chat_draft: String = ""
 @export var chat_collapsed: bool = false
@@ -79,6 +80,7 @@ func copy() -> PlayerSettings:
 	result.mouse_camera_sensitivity = mouse_camera_sensitivity
 	result.controller_camera_sensitivity = controller_camera_sensitivity
 	result.invert_camera_y = invert_camera_y
+	result.swap_hotbar_camera_scroll = swap_hotbar_camera_scroll
 	result.on_screen_keyboard_enabled = on_screen_keyboard_enabled
 	result.chat_draft = chat_draft
 	result.chat_collapsed = chat_collapsed

settings/player_settings_manager.gd

@@ -54,6 +54,10 @@ func load_settings() -> bool:
 	if (
 		typeof(accessibility.get("auto_click_enabled")) != TYPE_BOOL
 		or typeof(camera.get("invert_vertical")) != TYPE_BOOL
+		or (
+			camera.has("swap_hotbar_camera_scroll")
+			and typeof(camera["swap_hotbar_camera_scroll"]) != TYPE_BOOL
+		)
 		or (
 			accessibility.has("on_screen_keyboard_enabled")
 			and typeof(accessibility["on_screen_keyboard_enabled"]) != TYPE_BOOL
@@ -109,6 +113,9 @@ func load_settings() -> bool:
 		-1.0
 	)
 	loaded.invert_camera_y = camera["invert_vertical"]
+	loaded.swap_hotbar_camera_scroll = bool(
+		camera.get("swap_hotbar_camera_scroll", false)
+	)
 	loaded.on_screen_keyboard_enabled = bool(
 		accessibility.get("on_screen_keyboard_enabled", false)
 	)
@@ -237,6 +244,9 @@ func save_now() -> bool:
 			"mouse_sensitivity": current_settings.mouse_camera_sensitivity,
 			"controller_sensitivity": current_settings.controller_camera_sensitivity,
 			"invert_vertical": current_settings.invert_camera_y,
+			"swap_hotbar_camera_scroll": (
+				current_settings.swap_hotbar_camera_scroll
+			),
 		},
 		"audio": {
 			"master": current_settings.master_volume,