146 lines
4.4 KiB
GDScript
146 lines
4.4 KiB
GDScript
extends Node
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## Persistent player-facing settings (AnchorV1.0 §9.5 difficulty windows,
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## §20.5 music/sfx volumes). Sole writer of the Music / SFX buses and of the
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## RhythmManager judgement windows; every menu goes through this node.
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signal difficulty_changed(difficulty: StringName)
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signal volumes_changed(music_volume: int, sfx_volume: int)
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const SETTINGS_PATH := "user://settings.cfg"
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const MUSIC_BUS_NAME := "Music"
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const SFX_BUS_NAME := "SFX"
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const DIFFICULTY_ORDER: Array[StringName] = [&"easy", &"normal", &"hard"]
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## Windows in seconds per AnchorV1.0 §21.8.
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const DIFFICULTY_WINDOWS := {
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&"easy": Vector3(0.090, 0.160, 0.260),
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&"normal": Vector3(0.060, 0.115, 0.215),
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&"hard": Vector3(0.030, 0.070, 0.170),
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}
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## 小怪血量难度倍率：普通 3 倍、困难 5 倍，简单保持基准值。
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const DIFFICULTY_MINION_HEALTH_MULTIPLIER := {
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&"easy": 1.0,
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&"normal": 3.0,
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&"hard": 5.0,
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}
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const DEFAULT_DIFFICULTY: StringName = &"normal"
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const DEFAULT_MUSIC_VOLUME := 85
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const DEFAULT_SFX_VOLUME := 80
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var difficulty: StringName = DEFAULT_DIFFICULTY
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var music_volume := DEFAULT_MUSIC_VOLUME
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var sfx_volume := DEFAULT_SFX_VOLUME
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func _ready() -> void:
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_ensure_audio_buses()
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_load_settings()
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apply_difficulty_windows()
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_apply_bus_volumes()
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func set_difficulty(next: StringName) -> void:
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if not DIFFICULTY_WINDOWS.has(next):
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return
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if next == difficulty:
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return
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difficulty = next
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apply_difficulty_windows()
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_save_settings()
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difficulty_changed.emit(difficulty)
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func set_music_volume(value: int) -> void:
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music_volume = clampi(value, 0, 100)
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_apply_bus_volumes()
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_save_settings()
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volumes_changed.emit(music_volume, sfx_volume)
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func set_sfx_volume(value: int) -> void:
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sfx_volume = clampi(value, 0, 100)
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_apply_bus_volumes()
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_save_settings()
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volumes_changed.emit(music_volume, sfx_volume)
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func difficulty_windows(for_difficulty: StringName = &"") -> Vector3:
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var key := for_difficulty if DIFFICULTY_WINDOWS.has(for_difficulty) else difficulty
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return DIFFICULTY_WINDOWS.get(key, DIFFICULTY_WINDOWS[DEFAULT_DIFFICULTY])
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func minion_health_multiplier(for_difficulty: StringName = &"") -> float:
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var key := for_difficulty if DIFFICULTY_MINION_HEALTH_MULTIPLIER.has(for_difficulty) else difficulty
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return float(DIFFICULTY_MINION_HEALTH_MULTIPLIER.get(key, 1.0))
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func difficulty_display_name(value: StringName = &"") -> String:
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match (value if not value.is_empty() else difficulty):
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&"easy":
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return "简单"
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&"hard":
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return "困难"
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return "普通"
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func apply_difficulty_windows() -> void:
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var rhythm := _rhythm_manager_or_null()
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if rhythm == null or not rhythm.has_method("apply_judgement_windows"):
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return
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var windows := difficulty_windows()
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rhythm.call("apply_judgement_windows", windows.x, windows.y, windows.z)
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func _ensure_audio_buses() -> void:
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for bus_name: String in [MUSIC_BUS_NAME, SFX_BUS_NAME]:
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if AudioServer.get_bus_index(bus_name) != -1:
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continue
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AudioServer.add_bus()
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var bus_index := AudioServer.bus_count - 1
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AudioServer.set_bus_name(bus_index, bus_name)
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AudioServer.set_bus_send(bus_index, "Master")
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func _apply_bus_volumes() -> void:
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_set_bus_volume(MUSIC_BUS_NAME, music_volume)
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_set_bus_volume(SFX_BUS_NAME, sfx_volume)
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func _set_bus_volume(bus_name: String, value: int) -> void:
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var bus_index := AudioServer.get_bus_index(bus_name)
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if bus_index == -1:
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return
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var linear := clampf(float(value) / 100.0, 0.0, 1.0)
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AudioServer.set_bus_mute(bus_index, linear <= 0.0)
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AudioServer.set_bus_volume_db(bus_index, linear_to_db(maxf(0.0001, linear)))
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func _load_settings() -> void:
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var config := ConfigFile.new()
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if config.load(SETTINGS_PATH) != OK:
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return
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var stored_difficulty := StringName(str(config.get_value("gameplay", "difficulty", str(DEFAULT_DIFFICULTY))))
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if DIFFICULTY_WINDOWS.has(stored_difficulty):
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difficulty = stored_difficulty
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music_volume = clampi(int(config.get_value("audio", "music_volume", DEFAULT_MUSIC_VOLUME)), 0, 100)
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sfx_volume = clampi(int(config.get_value("audio", "sfx_volume", DEFAULT_SFX_VOLUME)), 0, 100)
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func _save_settings() -> void:
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var config := ConfigFile.new()
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config.set_value("gameplay", "difficulty", str(difficulty))
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config.set_value("audio", "music_volume", music_volume)
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config.set_value("audio", "sfx_volume", sfx_volume)
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config.save(SETTINGS_PATH)
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func _rhythm_manager_or_null() -> Node:
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if not is_inside_tree():
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return null
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return get_tree().root.get_node_or_null("RhythmManager")
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