Add input debug to window title for diagnostic

Shows Input.get_axis() values, weapon slot states, and fire
state in the window title bar — visible even when print()
output is lost on Windows GUI exports.

examples/multiplayer-fps/scripts/player.gd

@@ -129,6 +129,12 @@ func _process(_delta: float):
 			print("[PLAYER DEBUG] _process skipping — input not authority (unique_id=%d, input_auth=%d)" % [multiplayer.get_unique_id(), input.get_multiplayer_authority()])
 			return
 	
+	# DEBUG: Show input state in window title
+	if _is_local and input:
+		var mx := Input.get_axis("move_west", "move_east")
+		var mz := Input.get_axis("move_north", "move_south")
+		get_window().title = "TS [mv=%.1f,%.1f] [sl=%s%s%s%s] [fire=%s]" % [mx, mz, input.slot_1, input.slot_2, input.slot_3, input.slot_4, input.fire_held]
+	
 	# Smooth position interpolation between ticks
 	var f := NetworkTime.tick_factor
 	global_position = _lerp_from_pos.lerp(_lerp_to_pos, f)

examples/multiplayer-fps/scripts/weapon_manager.gd

@@ -164,10 +164,6 @@ func _rollback_tick(delta: float, tick: int, _is_fresh: bool):
 	# We process weapon actions anyway — the server reconciles via rollback.
 	# Only skip if the player is dead or frozen (checked below).
 
-	# Skip if player dead
-	if input and (input.slot_1 or input.slot_2 or input.slot_3 or input.slot_4):
-		print("[WEAPON DEBUG] _rollback_tick tick=%d slots=[s1=%s s2=%s s3=%s s4=%s] active=%d inv=%s" % [tick, input.slot_1, input.slot_2, input.slot_3, input.slot_4, active_slot, inventory])
-
 	# Skip if player dead
 	if player.death_tick >= 0 and tick >= player.death_tick:
 		return
@@ -413,8 +409,3 @@ func _spawn_grenade(origin: Vector3, direction: Vector3, owner_id: int, type_idx
 	get_tree().current_scene.add_child(grenade)
 	var gtype: Grenade.GrenadeType = Grenade.GrenadeType.FLASH if type_idx == 0 else Grenade.GrenadeType.SMOKE
 	grenade.setup(origin, direction, owner_id, gtype)
-
-func _rollback_tick(delta: float, tick: int, _is_fresh: bool):
-    # DEBUG: Log when this is called with non-default input
-    if input and (input.slot_1 or input.slot_2 or input.slot_3 or input.slot_4):
-        print("[WEAPON DEBUG] _rollback_tick tick=%d slots=[%s %s %s %s]" % [tick, input.slot_1, input.slot_2, input.slot_3, input.slot_4])

examples/shared/scripts/lan-bootstrapper.gd

@@ -72,24 +72,34 @@ func join():
 	print("Client started")
 	connect_ui.hide()
 	
-	# Ensure game window has keyboard focus for input
+	# Force window focus for keyboard input (Windows GUI apps need this)
-	get_window().grab_focus()
+	_ensure_input_focus()
 	
 	# Only start manually if NetworkEvents is not handling it (e.g. multiplayer-simple)
 	if not NetworkEvents.enabled:
 		NetworkTime.start()
 
+func _ensure_input_focus() -> void:
+	## Force the game window to have keyboard focus and captured mouse.
+	## On Windows GUI exports, the window may not hold keyboard focus after
+	## the connection UI is dismissed, causing Input.get_axis() to return 0.
+	OS.move_to_foreground()
+	Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
+	# Deferred retry after window settles
+	get_window().call_deferred("grab_focus")
+	Input.call_deferred("set_mouse_mode", Input.MOUSE_MODE_CAPTURED)
+
 func _enter_tree():
 	# Hide and show UI as appropriate
 	# These handlers are necessary, since the game could have started via
 	# autoconnect, or any other method
 	NetworkEvents.on_client_start.connect(func(__):
 		connect_ui.hide()
-		get_window().grab_focus()
+		_ensure_input_focus()
 	)
 	NetworkEvents.on_server_start.connect(func():
 		connect_ui.hide()
-		get_window().grab_focus()
+		_ensure_input_focus()
 	)
 	NetworkEvents.on_client_stop.connect(func(): connect_ui.show())
 	NetworkEvents.on_server_stop.connect(func(): connect_ui.show())

tests/check_actions.gd.uid

@@ -1 +0,0 @@
-uid://4mlr8ca8nlg7

tests/check_input_map.gd.uid

@@ -1 +0,0 @@
-uid://h5lroui7prfv