class_name SpawnHookComponet extends ComponentBase

##SpawnHookComponent必须绑定一个相关的RayCast2D，用来控制射线想要检测的位置。
@export var binded_hook_ray_cast_2d : RayCast2D
##可以通過在這裏添加一個ComponentOwner默認的字段名來讀取輸入方向，默認是為空的。
@export var binded_hook_move_input_property_name: StringName

##用於Grapping Hook的基本Instance
const GRAPPING_HOOK = preload("uid://ddwoxlqluxiq5")
##當前的Graphook的實例
var _current_grap_hook_inst: Hook

##钩爪伸长达到动画位置
signal hook_reach_finished(reach_limit: float, anchor: Node2D)

##生成一个Grap Hook
func spawn_grap_hook_inst(dir: Vector2) -> Hook:
	
	var i = GRAPPING_HOOK.instantiate() as Hook
	i.init(self,true)
	get_tree().current_scene.add_child(i)
	i.start_stretching(dir)
	_current_grap_hook_inst = i
	
	i.stretching_finished.connect(_on_hook_stretching_end)
	return _current_grap_hook_inst

func release_cached_hook() -> void:
	_current_grap_hook_inst.release_hook()

##尝试关闭hook的延长
func suspend_hook_stretching(force_suspend: bool = false) -> bool:
	if not _current_grap_hook_inst: return false
	return _current_grap_hook_inst.end_stretching(force_suspend)

##当Hook stretching 关闭的时候，触发。
func _on_hook_stretching_end(reach_limit,anchor:Node2D) -> void:
	hook_reach_finished.emit(reach_limit,anchor)

##从当前的hook获取到hook的anchor
func get_current_hook_anchor() -> Node2D:
	return _current_grap_hook_inst._anchor

##初始化組件
func _init_component() -> void:
	pass