extends Node2D
class_name Event2D

# 前置依赖事件，为空时意味着无前置事件
@export var pre_event: String
# 当前事件
@export var event: String

var prev_stage := 0
var stage := 0


func _ready() -> void:
	stage = EventManager.get_stage(event)
	if pre_event:
		prev_stage = EventManager.get_stage(pre_event)
	SceneManager.ground_ready.connect(_on_ground_ready)
	EventManager.stage_updated.connect(_on_global_stage_updated)


func _on_global_stage_updated(e: StringName, s: int):
	if e == pre_event:
		prev_stage = s
		print("[Event2D] Pre-event stage updated: %s, stage: %s" % [pre_event, prev_stage])
		_on_pre_stage_updated()
	elif e == event:
		stage = s
		print("[Event2D] Event stage updated: %s, stage: %s" % [event, stage])
		_on_stage_updated()


func _on_ground_ready(ground: Ground2D):
	pass


func _on_pre_stage_updated():
	pass


func _on_stage_updated():
	pass