Added sound manager.

src/gstates/menu.lua

@@ -2,17 +2,18 @@
 -- Imports
 ------------------------------------------------------------------------------
 
-local love        = require 'love'
-local assets      = require 'src.utils.asstmngr'
-local make_class  = require 'src.utils.classes'
-local constants   = require 'src.gstates.menus.const'
-local GameState   = require 'src.gstates.gstate'
-local MainMenu    = require 'src.gstates.menus.mainmenu'
-local OptionsMenu = require 'src.gstates.menus.options'
-local Fader       = require 'src.graphics.fader'
-local Cursor      = require 'src.ui.cursor'
-local Font        = require 'src.ui.font'
-local SoundEffect = require 'src.sound.sfx'
+local love          = require 'love'
+local assets        = require 'src.utils.asstmngr'
+local sound_manager = require 'src.sound.sndmngr'
+local make_class    = require 'src.utils.classes'
+local constants     = require 'src.gstates.menus.const'
+local GameState     = require 'src.gstates.gstate'
+local MainMenu      = require 'src.gstates.menus.mainmenu'
+local OptionsMenu   = require 'src.gstates.menus.options'
+local Fader         = require 'src.graphics.fader'
+local Cursor        = require 'src.ui.cursor'
+local Font          = require 'src.ui.font'
+local SoundEffect   = require 'src.sound.sfx'
 
 
 ------------------------------------------------------------------------------
@@ -58,7 +59,7 @@ end
 
 
 function Menu:update(dt)
-    if not self.bgm:isPlaying() then self.bgm:play() end
+    if not self.bgm:isPlaying() then sound_manager:play_music(self.bgm) end
 
     if self.all_loaded then
         self.menus[self.current_menu]:update(dt)

src/gstates/menus/options.lua

@@ -2,16 +2,17 @@
 -- Imports
 ------------------------------------------------------------------------------
 
-local make_class = require 'src.utils.classes'
-local constants  = require 'src.gstates.menus.const'
-local settings   = require 'src.utils.settings'
-local BaseMenu   = require 'src.gstates.menus.base'
-local Color      = require 'src.utils.color'
-local HBox       = require 'src.ui.hbox'
-local Label      = require 'src.ui.label'
-local TextButton = require 'src.ui.textbtn'
-local Checkbox   = require 'src.ui.chkbox'
-local Bar        = require 'src.ui.bar'
+local make_class    = require 'src.utils.classes'
+local constants     = require 'src.gstates.menus.const'
+local settings      = require 'src.utils.settings'
+local sound_manager = require 'src.sound.sndmngr'
+local BaseMenu      = require 'src.gstates.menus.base'
+local Color         = require 'src.utils.color'
+local HBox          = require 'src.ui.hbox'
+local Label         = require 'src.ui.label'
+local TextButton    = require 'src.ui.textbtn'
+local Checkbox      = require 'src.ui.chkbox'
+local Bar           = require 'src.ui.bar'
 
 
 ------------------------------------------------------------------------------
@@ -67,6 +68,7 @@ function OptionsMenu:_init(parent, title_font, button_font)
     box:add(Bar(
         function(v)
             settings.musicvol = math.ceil(v)
+            sound_manager:update_volumes()
         end,
         function()
             return settings.musicvol

src/sound/sndmngr.lua

@@ -0,0 +1,57 @@
+------------------------------------------------------------------------------
+-- Imports
+------------------------------------------------------------------------------
+
+local make_class = require 'src.utils.classes'
+local settings   = require 'src.utils.settings'
+
+
+------------------------------------------------------------------------------
+-- Class definitions
+------------------------------------------------------------------------------
+
+local SoundManager = make_class()
+
+
+------------------------------------------------------------------------------
+-- Class methods
+------------------------------------------------------------------------------
+
+function SoundManager:_init()
+    self.active_bgm = nil
+end
+
+
+function SoundManager:play_sound(sfx)
+    local vol = math.max(math.min(settings.soundvol / 100, 1.0), 0.0)
+    sfx:setVolume(vol)
+    sfx:play()
+end
+
+
+function SoundManager:play_music(bgm)
+    local vol = math.max(math.min(settings.musicvol / 100, 1.0), 0.0)
+
+    if self.active_bgm ~= nil then
+        self.active_bgm:stop()
+    end
+
+    self.active_bgm = bgm
+    self.active_bgm:setVolume(vol)
+    self.active_bgm:play()
+end
+
+
+function SoundManager:update_volumes()
+    if self.active_bgm ~= nil then
+        local vol = math.max(math.min(settings.musicvol / 100, 1.0), 0.0)
+        self.active_bgm:setVolume(vol)
+    end
+end
+
+
+------------------------------------------------------------------------------
+-- Module return
+------------------------------------------------------------------------------
+
+return SoundManager()

src/utils/asstmngr.lua

@@ -5,6 +5,7 @@
 local love       = require 'love'
 local make_class = require 'src.utils.classes'
 local Drawable   = require 'src.graphics.drawable'
+local Asset      = require 'src.utils.asset'
 local Sprite     = require 'src.graphics.sprite'
 local Font       = require 'src.ui.font'
 
@@ -13,7 +14,6 @@ local Font       = require 'src.ui.font'
 ------------------------------------------------------------------------------
 
 local AssetManager = make_class(Drawable)
-local Asset        = require 'src.utils.asset'
 
 
 ------------------------------------------------------------------------------