Added assets manager singleton.

src/gstates/menu.lua

@@ -3,6 +3,7 @@
 ------------------------------------------------------------------------------
 
 local love        = require 'love'
+local assets      = require 'src.utils.asstmngr'
 local make_class  = require 'src.utils.classes'
 local GameState   = require 'src.gstates.gstate'
 local Fader       = require 'src.graphics.fader'
@@ -36,40 +37,37 @@ function MainMenu:_init(name, index)
 
     -- Create sound effects.
     self.bgm = SoundEffect('bgm/eskisky.wav')
-end
 
-
-function MainMenu:load()
-    -- Load sprites.
-    self.background:load()
-    self.cursor:load()
-
-    -- Load sound effects and start playing the background music
-    self.bgm:load()
-    self.bgm:play()
+    -- Register all assets.
+    assets:register(self.name, self.background)
+    assets:register(self.name, self.cursor)
+    assets:register(self.name, self.bgm)
 end
 
 
 function MainMenu:update(dt)
-    -- Update the fader.
-    self.fade:update(dt)
+    if assets:done(self.name) then
+        if not self.bgm:isPlaying() then self.bgm:play() end
 
-    -- Move on to the next game state if the user skipped the intro or all stages are complete.
-    if not self.skip then return self.index else return -1 end
+        -- Update the fader.
+        self.fade:update(dt)
+
+        -- Move on to the next game state if the user skipped the intro or all stages are complete.
+        if not self.skip then return self.index else return -1 end
+    else
+        assets:update(self.name)
+    end
 end
 
 
 function MainMenu:draw()
-    self.background:draw()
-    self.cursor:draw()
-    self.fade:draw()
-end
-
-
-function MainMenu:unload()
-    self.background:unload()
-    self.cursor:unload()
-    self.bgm:unload()
+    if assets:done(self.name) then
+        self.background:draw()
+        self.cursor:draw()
+        self.fade:draw()
+    else
+        assets:draw()
+    end
 end