@tool
class_name CameraAnchor extends Node2D

## 该priority不会直接修改Anchor的priority
@export var priority: int = 0
@export var enabled: bool = true
@export var blend_time: float = 0.3

@export var zoom: Vector2 = Vector2.ONE
@export var offset: Vector2 = Vector2.ZERO

var _priority: int :
	set(value):
		if _priority != value:
			_priority = value
			on_priority_change.emit(_priority, self)

signal on_priority_change(_priority:int, anchor: CameraAnchor)

func _ready() -> void:
	if not Engine.is_editor_hint():
		_runtime_ready() 

func _runtime_ready() -> void:
	_priority = priority

func push_camera() -> void:
	CameraSystem.reset_all_camera_priority()
	_priority = 1000

func pop_camera() -> void:
	_priority = 0

func _enter_tree() -> void:
	if Engine.is_editor_hint():
		return
	CameraSystem.register_anchor(self)

func _exit_tree() -> void:
	if Engine.is_editor_hint():
		return
	CameraSystem.unregister_anchor(self)