xiandie/scene/entity/interactable.gd

@tool
class_name Interactable2D extends Sprite2D

# interacted_times 增加后，再发出信号
signal interacted
signal interacted_with_key(key)
# 交互 prop 不匹配
signal interact_mismatch_failed

signal sign_mark_offset_updated

# sign_mark 节点在 ready 时会直接读取
@export var sign_mark_offset := Vector2.ZERO:
	set(val):
		sign_mark_offset = val
		sign_mark_offset_updated.emit(val)
@export var enabled := true:
	set(val):
		enabled = val
		if is_node_ready():
			_check_sign_display()
@export var unrevealed_sign_texture: Texture2D
@export var unmatched_sign_texture: Texture2D
@export var matched_sign_texture: Texture2D
@export var mute_when_interacted := false
@export var mute_when_invalid := false
@export var one_shot := true
@export var one_shot_max_times := 1
@export var disable_prop_after_interacted := false
@export var interacted_texture: Texture2D

var prop_key := ""
var prop_key2 := ""
var prop_key3 := ""

@onready var sfx_invalid = $SfxInvalid as Sfx
@onready var sfx_success = $SfxSuccess as Sfx
@onready var sign_mark = %Sign as Sign
@onready var area2d = %Area2D as Area2D

var ground_archive: GroundArchive
# 尝试互动的次数
var tried_times: int:
	set(val):
		tried_times = val
		ground_archive.set_pair(name, "tried_times", val)
# 成功互动的次数
var interacted_times: int:
	set(val):
		interacted_times = val
		ground_archive.set_pair(name, "interacted_times", val)

static var item_config_res = preload("res://asset/dialogue/item_description.dialogue")


func _ready() -> void:
	if Engine.is_editor_hint():
		return
	area2d.body_entered.connect(_reset)
	area2d.body_exited.connect(_on_cancel)
	sign_mark.interacted.connect(_on_interacted)
	sign_mark.cancel.connect(_on_cancel)
	sign_mark.enabled = enabled
	# setup default value
	ground_archive = ArchiveManager.archive.ground_archive()
	tried_times = ground_archive.get_value(name, "tried_times", 0)
	interacted_times = ground_archive.get_value(name, "interacted_times", 0)
	if interacted_times and interacted_texture:
		texture = interacted_texture
	_check_sign_display()


func _check_sign_display():
	sign_mark.enabled = enabled and (not one_shot or interacted_times < one_shot_max_times)


func _reset(_body = null) -> void:
	_reset_sign_testure_to_prop()
	var prop_hud = SceneManager.get_prop_hud() as PropHud
	if not prop_hud.current_item_changed.is_connected(_set_sign_texture_to_prop):
		prop_hud.current_item_changed.connect(_set_sign_texture_to_prop)


func _reset_sign_testure_to_prop():
	var key = SceneManager.get_current_prop(false)
	_set_sign_texture_to_prop(key)


# 根据当前 prop，调整 sign 所显示的 texture
func _set_sign_texture_to_prop(_key):
	if tried_times == 0:
		# 首次交互前 unrevealed
		sign_mark.sprite2d.texture = unrevealed_sign_texture
		return
	# 目前默认都显示 matched_sign_texture
	sign_mark.sprite2d.texture = matched_sign_texture
	# if is_key_matched(key):
	# 	sign_mark.sprite2d.texture = matched_sign_texture
	# else:
	# 	sign_mark.sprite2d.texture = unmatched_sign_texture

func _on_cancel(_body = null) -> void:
	# disconnect signal
	var prop_hud = SceneManager.get_prop_hud() as PropHud
	if prop_hud and prop_hud.current_item_changed.is_connected(_set_sign_texture_to_prop):
		prop_hud.current_item_changed.disconnect(_set_sign_texture_to_prop)


var interact_mutex = Mutex.new()


func is_key_matched(key) -> bool:
	return (
		# 第一个 prop_key 若空，则表示不需要匹配
		not prop_key
		or (
			# 只要有一个 prop_key 匹配即可
			(prop_key and key == prop_key)
			or (prop_key2 and key == prop_key2)
			or (prop_key3 and key == prop_key3)
		)
	)


func _on_interacted() -> void:
	interact_mutex.lock()
	tried_times += 1
	if one_shot and interacted_times >= one_shot_max_times:
		interact_mutex.unlock()
		return
	var key = SceneManager.get_current_prop(false)
	if not is_key_matched(key):
		if not mute_when_invalid:
			sfx_invalid.play()
		sign_mark.invalid_shake(matched_sign_texture, unmatched_sign_texture)
		# SceneManager.on_toggle_invalid_prop()
		interact_mutex.unlock()
		interact_mismatch_failed.emit()
		return
	if not mute_when_interacted:
		sfx_success.play()
	if disable_prop_after_interacted and key:
		SceneManager.disable_prop_item(key)
	interacted_times += 1
	if interacted_texture:
		texture = interacted_texture
	# interacted_times 增加后，再发出信号
	interacted.emit()
	interacted_with_key.emit(key)
	EventManager.prop_interacted(name, key, interacted_times)
	# print("%s interacted with %s. total times: %s" % [name, key, interacted_times])
	interact_mutex.unlock()
	_check_sign_display()
	_reset_sign_testure_to_prop()


func _get_property_list() -> Array[Dictionary]:
	var items = []
	if Engine.is_editor_hint():
		var id = item_config_res.titles["PropItems"]
		var current_line = item_config_res.lines[id]
		while current_line:
			if current_line.has("translation_key"):
				items.append(current_line.translation_key)
			if not current_line.has("next_id") or current_line.next_id == "end":
				break
			current_line = item_config_res.lines[current_line.next_id]
	return [
		{
			"name": "prop_key",
			"type": TYPE_STRING,
			"hint": PROPERTY_HINT_ENUM_SUGGESTION,
			"hint_string": ",".join(items),
		},
		{
			"name": "prop_key2",
			"type": TYPE_STRING,
			"hint": PROPERTY_HINT_ENUM_SUGGESTION,
			"hint_string": ",".join(items),
		},
		{
			"name": "prop_key3",
			"type": TYPE_STRING,
			"hint": PROPERTY_HINT_ENUM_SUGGESTION,
			"hint_string": ",".join(items),
		}
	]


func _get(property: StringName) -> Variant:
	if property == "prop_key":
		return prop_key
	elif property == "prop_key2":
		return prop_key2
	elif property == "prop_key3":
		return prop_key3
	return null


func _set(property: StringName, value: Variant) -> bool:
	if property == "prop_key":
		prop_key = value
		return true
	elif property == "prop_key2":
		prop_key2 = value
		return true
	elif property == "prop_key3":
		prop_key3 = value
		return true
	return false