extends Node3D
class_name Level

var level_instance_list: Array[LevelInstance]
var born_pos: Vector3

@onready var grid_block_material: Material = load("res://render/material/level_grid_block.tres") as Material
@onready var grass_material: Material = load("res://render/material/level_grass.tres") as Material
@onready var material_grid_mark_white: Material = load("res://render/material/level_grid_mark_white.tres") as Material
@onready var material_grid_mark_black: Material = load("res://render/material/level_grid_mark_black.tres") as Material
@onready var material_grid_mark_green: Material = load("res://render/material/level_grid_mark_green.tres") as Material


func init() -> void:
	grid_block_material.set_shader_parameter("is_target", true)
	grid_block_material.set_shader_parameter("is_focus", true)
	material_grid_mark_white.set_shader_parameter("is_open", true)
	material_grid_mark_black.set_shader_parameter("is_open", true)
	material_grid_mark_green.set_shader_parameter("is_open", true)

	for level_instance in level_instance_list:
		level_instance.init_level_character()
		level_instance.init_level_main()


func get_level_instance_list() -> Array[LevelInstance]:
	if not level_instance_list:
		level_instance_list = []
		var rooms_node: Node3D       = %Levels as Node3D
		var level_character: GridMap = %LevelGridCharacter as GridMap
		level_character.visible = false
		for rooms_node_child in rooms_node.get_children():
			if not rooms_node_child is LevelArea:
				continue
			for rooms_node_child_child in rooms_node_child.get_children():
				if rooms_node_child_child is LevelInstance:
					rooms_node_child_child.level_area_cfg = rooms_node_child.cfg
					rooms_node_child_child.set_level_range_visible(false)
					level_instance_list.append(rooms_node_child_child)

	return level_instance_list


func get_born_pos() -> Vector3:
	if not born_pos:
		var born_pos_node: Node3D = %BornPos as Node3D
		born_pos = born_pos_node.get_global_position()
	return born_pos


func set_player_position(pos: Vector3) -> void:
	grid_block_material.set_shader_parameter("target_position_y", pos.y)
	grass_material.set_shader_parameter("character_position", pos)