extends Node2D
## 关卡生成器：读 data/level_*.gd 的字符串网格，按坐标实例化砖块。
## 改关卡 = 改 data/ 下的脚本，代码不动。

const BrickScene: PackedScene = preload("res://scenes/brick.tscn")

@export var brick_size: Vector2 = Vector2(96, 32)   ## 砖块宽高
@export var origin: Vector2 = Vector2(128, 80)      ## 网格左上角起始坐标
@export var char_to_hp: Dictionary = {
	"1": 1,
	"2": 2,
	"3": 3,
	"U": -1,  # -1 表示不可破坏
}

func load_layout(layout: Array[String]) -> void:
	# 清空旧砖块
	for child in get_children():
		child.queue_free()

	for row in range(layout.size()):
		var line: String = layout[row]
		for col in range(line.length()):
			var ch: String = line[col]
			if ch == "." or not char_to_hp.has(ch):
				continue
			_spawn_brick(col, row, ch)

func _spawn_brick(col: int, row: int, ch: String) -> void:
	var brick: StaticBody2D = BrickScene.instantiate()
	add_child(brick)
	brick.position = origin + Vector2(col * brick_size.x, row * brick_size.y)

	if char_to_hp[ch] == -1:
		# 不可破坏：直接给个高血量占位（M1 先不细分）
		brick.max_hp = 9999
		brick.points = 0
	else:
		brick.max_hp = char_to_hp[ch]
		brick.points = brick.max_hp * 100