Added options menu and menu transitions.

src/gstates/menus/options.lua

@@ -0,0 +1,39 @@
+------------------------------------------------------------------------------
+-- Imports
+------------------------------------------------------------------------------
+
+local make_class = require 'src.utils.classes'
+local constants  = require 'src.gstates.menus.const'
+local BaseMenu   = require 'src.gstates.menus.base'
+local Color      = require 'src.utils.color'
+
+
+------------------------------------------------------------------------------
+-- Class definitions
+------------------------------------------------------------------------------
+
+local OptionsMenu = make_class(BaseMenu)
+
+
+------------------------------------------------------------------------------
+-- Class methods
+------------------------------------------------------------------------------
+
+function OptionsMenu:_init(parent, title_font, button_font)
+    BaseMenu._init(self, parent, "Options Menu", constants.OPTIONS_MENU, 'imgs/cpu.png')
+
+    -- Create UI elements of the main menu.
+    self.container:add_label('Options', title_font, Color(215, 0, 0), true)
+    self.container:add_label('Enable Permadeath', button_font)
+    self.container:add_label('Controls', button_font)
+    self.container:add_label('Sound Volume', button_font)
+    self.container:add_label('Music Volume', button_font)
+    self.container:add_text_button('Go Back', button_font, function() parent.next_menu = constants.MAIN_MENU end)
+end
+
+
+------------------------------------------------------------------------------
+-- Module return
+------------------------------------------------------------------------------
+
+return OptionsMenu