shenleiandClaude Sonnet 5
9732f2799e
§9.1 map BGM selection (bgm_director.gd): - server bgm_changed(name, volume): non-empty name plays it as field music; empty name falls back to musicInfo.fieldMusic (METIN2THEMA = "M2BG.mp3") - volume < 0 (server unspecified, GC_MAIN_CHARACTER3_BGM) -> default 1/5*0.1 = 0.02; otherwise server volume; volume applied before play_bgm() fade-in (matches game.py:190 SetMusicVolume/SetSoundVolume then FadeInMusic) - connect M2Client.world_reset -> re-run selection on map change - new musicinfo.gd: METIN2THEMA/loginMusic/createMusic/selectMusic/fieldMusic constants + save/load_last_play_field_music -> user://BGM/lastplay.inf §9.2 background/foreground volume save-restore: - audio.gd: save_volume()/restore_volume() (backup fields echo reference m_fBackupMusicVolume / m_fBackupSoundVolume) + set_music_volume() - app_lifecycle.gd: _enter_background() uses save_volume() + mute instead of stop_bgm(); _exit_background() calls restore_volume(); _bgm_name never cleared §9.3 lifecycle ownership: DOC ONLY — design confirmed, deferred to Phase 2 / W0 (AppFlow sole lifecycle owner; M2Client drops NOTIFICATION_* keeps suspend/resume). game_scene.gd / app_flow.gd / m2_client.* left untouched per workflow constraints. Tests: bgm_test.gd (new) PASS; gamescene_test / netplay_test / p9_test green. Docs: CLIENT-GAP.md increment 50 bullet + W4 progress row; CLIENT-GAP-FIX.md §9.1 §9.2 状态/改动/测试/验收, §9.3 deferred note, C.5 batch record. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014yvAPqPivoY7vmBbzgqK4W
82 lines
3.1 KiB
GDScript
82 lines
3.1 KiB
GDScript
# BgmDirector —— 把 M2Client.bgm_changed 信号翻译成 Audio 的 BGM 播放。
|
||
#
|
||
# 存在的理由：§9.1 的地图 BGM 消费点，从 net_world.gd 里拆出来，避免 W2（可见性）
|
||
# 和 W4（音频）同时改 net_world.gd。地图 → 曲目解析和音量应用在这里（§9.1）。
|
||
#
|
||
# 选曲逻辑对标 game.py:190（GameWindow.Open 内）：
|
||
# snd.SetMusicVolume(...); snd.SetSoundVolume(...) # 先应用音量
|
||
# name = net.GetFieldMusicFileName()
|
||
# if name: snd.FadeInMusic("BGM/" + name)
|
||
# elif musicInfo.fieldMusic: snd.FadeInMusic("BGM/" + musicInfo.fieldMusic)
|
||
# 默认音量 gs_fieldMusic_volume = 1.0f/5.0f*0.1f = 0.02f（服务器未下发时）。
|
||
#
|
||
# 用法：
|
||
# var bd := preload("res://bgm_director.gd").new()
|
||
# add_child(bd)
|
||
# bd.bind(client, audio)
|
||
extends Node
|
||
|
||
const MusicInfo = preload("res://musicinfo.gd")
|
||
|
||
# gs_fieldMusic_volume 默认值（PythonNetworkStreamPhaseLoading.cpp:299）。
|
||
const DEFAULT_FIELD_MUSIC_VOLUME := 1.0 / 5.0 * 0.1 # = 0.02
|
||
|
||
var _client: Node
|
||
var _audio: Node
|
||
|
||
# 服务器最近一次下发的 BGM（曲目 id 或路径）和音量（<0 表示未指定）。
|
||
var current_track := ""
|
||
var current_volume := -1.0
|
||
|
||
func bind(client: Node, audio: Node) -> void:
|
||
_client = client
|
||
_audio = audio
|
||
if _client and _client.has_signal("bgm_changed"):
|
||
_client.bgm_changed.connect(_on_bgm_changed)
|
||
# 换图（§1.3）：world_reset 后重跑选曲逻辑。新图的 BGM 包到达前沿用当前曲目。
|
||
if _client and _client.has_signal("world_reset"):
|
||
_client.world_reset.connect(_on_world_reset)
|
||
|
||
func _on_bgm_changed(name: String, volume: float) -> void:
|
||
# M2Client 已在 EntityStore 侧做音量保留（BGM3 只带名、BGM4 带名+音量），
|
||
# 这里拿到的 volume 就是「有效音量」，<0 仅表示从未收到过 BGM4。
|
||
current_track = name
|
||
current_volume = volume
|
||
_select()
|
||
|
||
func _on_world_reset() -> void:
|
||
_select()
|
||
|
||
# game.py:190 的三行选曲 + 先置音量。
|
||
func _select() -> void:
|
||
if _audio == null:
|
||
return
|
||
|
||
# 1) 选曲：服务端名优先，否则回落 musicInfo.fieldMusic（METIN2THEMA = "M2BG.mp3"）。
|
||
var track := current_track
|
||
if track == "":
|
||
track = String(MusicInfo.fieldMusic)
|
||
|
||
# 2) 音量：服务端未指定（<0）用默认 0.02，否则用服务端值。
|
||
var vol := current_volume if current_volume >= 0.0 else DEFAULT_FIELD_MUSIC_VOLUME
|
||
vol = clampf(vol, 0.0, 1.0)
|
||
|
||
# 3) 先应用音量再淡入：Audio.play_bgm() 的淡入目标是 linear_to_db(master_bgm)，
|
||
# 对标 game.py 先 SetMusicVolume/SetSoundVolume 再 FadeInMusic。
|
||
# 声音（SFX）音量在参考里取自系统设置（systemSetting.GetSoundVolume），
|
||
# 不随 BGM 包下发，这里不改 master_sfx。
|
||
if "master_bgm" in _audio:
|
||
_audio.master_bgm = vol
|
||
if _audio.has_method("set_music_volume"):
|
||
_audio.set_music_volume(vol)
|
||
|
||
if track == "":
|
||
if _audio.has_method("stop_bgm"):
|
||
_audio.stop_bgm()
|
||
return
|
||
|
||
if _audio.has_method("play_bgm"):
|
||
_audio.play_bgm(track)
|
||
# musicInfo.SaveLastPlayFieldMusic 语义：记录本次战场曲目。
|
||
MusicInfo.save_last_play_field_music(track)
|