make hovering_manager to manage hovers from one place

scripts/globals/hovering_manager.gd

@@ -0,0 +1,23 @@
+extends Node3D
+
+var hovered_node: Variant
+var mouse_pos: Vector2 = Vector2.ZERO
+
+@onready var camera: Camera3D = get_viewport().get_camera_3d()
+
+
+func _physics_process(_delta: float) -> void:
+	var space_state := get_world_3d().direct_space_state
+	var from := camera.project_ray_origin(mouse_pos)
+	var to := from + camera.project_ray_normal(mouse_pos) * (camera.far - 1)
+	var query := PhysicsRayQueryParameters3D.create(from, to)
+	var result := space_state.intersect_ray(query)
+	if not result:
+		hovered_node = null
+		return
+	hovered_node = result["collider"]
+
+
+func _input(event: InputEvent) -> void:
+	if event is InputEventMouseMotion:
+		mouse_pos = (event as InputEventMouseMotion).position

scripts/interactable.gd

@@ -11,11 +11,10 @@ var click_position: Vector2 = Vector2.ZERO
 
 func _ready() -> void:
 	assert(hover_sprite != null, "hover_sprite missing!")
-	mouse_entered.connect(_on_mouse_entered)
-	mouse_exited.connect(_on_mouse_exited)
 
 
 func _process(_delta: float) -> void:
+	hovered = HoveringManager.hovered_node == self
 	_animate()
 
 
@@ -42,10 +41,3 @@ func _click() -> void:
 func _animate() -> void:
 	hover_sprite.visible = hovered
 
-
-func _on_mouse_entered() -> void:
-	hovered = true
-
-
-func _on_mouse_exited() -> void:
-	hovered = false

scripts/selector.gd

@@ -1,4 +1,4 @@
-extends Node
+extends Node3D
 
 const MIN_DRAG_DISTANCE: float = 15
 const UNIT_SELECT_OFFSET: float = 0.25
@@ -56,10 +56,11 @@ func _input(event: InputEvent) -> void:
 			elif selecting:
 				_set_selection_state(false)
 	
-	if event is InputEventMouseMotion and mouse_pressed:
-		var motion_event := event as InputEventMouseMotion
-		selection_rect.size = motion_event.position - selection_rect.position
-
+	if event is InputEventMouseMotion:
+		if mouse_pressed:
+			var mouse_pos := (event as InputEventMouseMotion).position
+			selection_rect.size = mouse_pos - selection_rect.position
+		
 
 func _handle_frustrum_shape() -> void:
 	var viewport_size := get_viewport().get_visible_rect().size
@@ -109,10 +110,10 @@ func _set_selection_state(hover: bool) -> void:
 		if unit is ControlledUnit:
 			var controlled_unit := unit as ControlledUnit
 			if hover:
-				controlled_unit.set_hovered(rect_abs.has_point(point))
+				controlled_unit.set_hovered_rect(rect_abs.has_point(point))
 			else:
 				controlled_unit.set_selected(rect_abs.has_point(point))
-				controlled_unit.set_hovered(false)
+				controlled_unit.set_hovered_rect(false)
 
 
 func _on_frustrum_area_unit_entered(unit: Node3D) -> void:

scripts/units/controlled_unit.gd

@@ -26,7 +26,7 @@ func _ready() -> void:
 	assert(selection_sprite != null, "selection_sprite missing!")
 
 	set_selected(false)
-	if spawn_pos != null:
+	if spawn_pos != null and spawn_pos != Vector3.ZERO:
 		global_position = spawn_pos
 	super._ready()
 

scripts/units/unit.gd

@@ -8,6 +8,7 @@ var max_wander_distance: float = 5
 var min_wander_interval: float = 0.25
 var max_wander_interval: float = 5
 
+var hovered_rect: bool = false
 var hovered: bool = false
 var is_on_screen: bool = false
 var wandering_timer: float = 0
@@ -28,12 +29,9 @@ func _ready() -> void:
 	assert(visibility_notifier != null, "visibility_notifier missing!")
 
 	wandering_center = global_position
-	set_hovered(false)
 	nav_agent.max_speed = MOVE_SPEED
 	nav_agent.velocity_computed.connect(_on_nav_agent_velocity_computed)
 	set_max_slides(2)
-	mouse_entered.connect(_on_mouse_entered)
-	mouse_exited.connect(_on_mouse_exited)
 	visibility_notifier.screen_entered.connect(
 			_on_visibility_notifier_screen_entered,
 	)
@@ -43,15 +41,17 @@ func _ready() -> void:
 
 
 func _process(delta: float) -> void:
+	hovered = HoveringManager.hovered_node == self
 	_animate(delta)
+	hover_sprite.visible = hovered or hovered_rect
 
 
 func _physics_process(_delta: float) -> void:
 	_navigate()
 
 
-func set_hovered(on: bool) -> void:
-	hovered = on
+func set_hovered_rect(on: bool) -> void:
+	hovered_rect = on
 
 
 func _navigate() -> void:
@@ -111,14 +111,6 @@ func _on_nav_agent_velocity_computed(safe_velocity: Vector3) -> void:
 	move_and_slide()
 
 
-func _on_mouse_entered() -> void:
-	set_hovered(true)
-
-
-func _on_mouse_exited() -> void:
-	set_hovered(false)
-
-
 func _on_visibility_notifier_screen_entered() -> void:
 	is_on_screen = true