Main game menu

[ForNeVeR]

Alright, it's time to implement the main menu.

Features:

• background (titscrn_0)
• game title (titscrn_1)
• three buttons (New Game, Load Game, Quit Tone)
• probably, parse configuration file describing the UI
• button mouse hover behavior
• sparkles!
• after a while, the title starts scrolling up, with the credits and lore (credits.txt) appearing on the screen:
  • starts scrolling after 27 sec,
  • the title gets scrolled up at 38 sec,
  • looks like this (note intervals!):
    
    
    
  • is cycled
• background music
• click sound