Added a compressed variant of the Russian translation of Nancy Drew:
Secrets Can Kill. Added a flag to mark compressed game variants and
only load archives when playing one. Removed the 8-bit colors flag.
In TVD the exit cursor gets replaced when holding an item, whereas
nancy1 always shows it. This commit makes both games follow their
respective correct behavior.
When exiting a scene while holding an item, the cursor shown is now the fourth version of the item cursor, just as it is in the original engine. When entering a scene through the map while holding an item, the cursor no longer gets reset to the default one.
Added generic methods for getting the pixel format and transparent color. Also added a method for loading an image directly into a ManagedSurface, which also loads the palette and lets The Vampire Diaries logo display properly.
The resource manager now keeps track of its cif trees and calls to loadImage() and loadData() don't need to specify a cif tree. In order to support The Vampire Diaries, IFFs can now be loaded from their own dedicated .iff file, and the engine doesn't require a cif tree to be loaded on boot.
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.
Fixed a lot of code formatting issues, including switch case statements being indented, some curly braces not being left hanging, if and for statements not being surrounded by newlines, some double spaces, and more.
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.
