@tool
extends Node2D
#基础地块
class_name BaseBlock

#当地块要求进行移动时发出
signal request_block_move(before_pos:Vector2i,request_pos:Vector2i)
#当前地块是否可以行走
@export var walkable:bool=false
#当前块是否可以被用作施法（攻击目标）
@export var could_be_used_for_target:bool=false
#当前地块的坐标
@export var block_pos:Vector2i=Vector2i.ZERO:
	set(val):
		block_pos=val
		var parent=get_parent()
		if parent is TileMapLayer:
			self.position=parent.map_to_local(block_pos)
		
		pass

#实例化地块来源场景库
static var BlockClassDictionary:Dictionary={
	
}


func _ready() -> void:
	var parent=get_parent()
	if parent is TileMapLayer:
		self.position=parent.map_to_local(block_pos)
	_on_create()
	pass
#地块被创建时发出
func _on_create():
	
	
	pass
#当地块删除时发出
func _on_delete():
	
	
	
	pass


#当其他地块进入自己的地块时触发
func blocker_enter(block:BaseBlock):
	
	pass
#当其他地块退出自己的区域时触发
func blocker_out(block:BaseBlock):
	
	
	pass
#当其他地块在自己的地块上等待一回合时触发
func blocker_turn(blocker:BaseBlock):
	
	
	
	pass
#要求地块移动
func request_move(move_path_point_arr:Array,global_blocker_data:Dictionary):
	
	if move_path_point_arr.size()<2:
		return
	self.block_pos=move_path_point_arr.back()
	if global_blocker_data.has(move_path_point_arr[0]):
		var arr:Array=global_blocker_data[move_path_point_arr[0]]
		for i in arr:
			if i is BaseBlock:
				i.blocker_out(self)
	for i in range(1,move_path_point_arr.size()-1):
		if global_blocker_data.has(move_path_point_arr[i]):
			var arr:Array=global_blocker_data[move_path_point_arr[0]]
			for j in arr:
				if j is BaseBlock:
					j.blocker_enter(self)
					j.blocker_out(self)
	request_block_move.emit(move_path_point_arr[0],move_path_point_arr.back())
	pass

func turn():
	
	pass