Added a new logoEndAfter game constant, which controls how long
the game logo will stay on screen after booting the game, and
extracted its value for The Vampire Diaries.
Implemented the original engine's main menu and added an option to enable it from the custom options dialog. Several buttons in the main menu don't work yet since they require implementing additional game states.
SoundManager is now responsible for loading and storing all common sounds (sounds with their own BOOT chunk). All playSound() calls with a hardcoded channel ID now use the chunk name instead. Also fixed some sound inaccuracies when switching between states.
Did some cleanup of the engine, mostly focusing on the NancyEngine class. Reordered several classes' members, removed unused functions, edited comments, and renamed arfactory_v1.cpp to arfactory.cpp.
Changed the readBootSummary function so it uses a serializer with the game type enum as its version. With this change, we don't need separate subclasses just to read every different BSUM format, so all of the NancyEngine child classes have been removed.
Made all states (Scene, Credits, Help, etc.) singletons, as well as subclasses of a common State parent with a proper state switching API. Moved the OnPause virtual function from RenderObject to ActionRecord and hooked it into the state switching code. Also got rid of the NancyEngine pointer that got passed around between most classes, and replaced it with several convenience macros. As a result of these changes action records that render to the viewport no longer disappear after opening the menu, and state changes feel snappier.
Renamed all functions relating to the engine's internal state so they only mention the word State instead of GameState. This is to avoid confusion between them and functions relating to savegames, whose names already include GameState.
The original engine stores sound information in at least four different types of structs, all of which can now be loaded and played back. Also implemented sound types, which will be configurable from the ScummVM interface, added the correct number of sound channels, and implemented sound fx in a couple of action record types.
Rewrote most of the engine using a much more object-oriented approach and using more of ScummVM's common classes. This design deviates quite a lot from the original engine's, but should be more maintainable and extensible in the future.