* Extracted title updating from the main loop to a new method, Game::updateTitle().
* Added Game::updateCursor().
* Restructured the main loop to fix many subtle bugs and enable some new functionality concerning object scripts (like support for room-global use scripts).
* Added support for tracking currently selected icons (items, probably should be renamed).
* Changed walkDir, lookDir and useDir members of GameObject to int and adjusted them for zero-based indexing.
* Added Game::getCurrentIcon().
* Return from WalkingMap::findNearestWalkable immediately if the starting point is walkable.
svn-id: r43160
* Added enum constant kNoEscRoom for rooms that have no escape room defined
* Fixed crash when ESC is pressed in rooms which have no escape room defined
* Renamed kNotFound (used as a return value for Game::getObjectWithAnimation) to kObjectNotFound for clarity.
svn-id: r43072
* Handled title positioning
* Cleaned up the main loop a bit (comments, stylistic changes, shortened some lines, etc)
* Fixed setting the dragon's feet position (the x coordinate should be at the midpoint of the animation)
svn-id: r43059
* Handled the kStatusTalk loop substatus properly inside Game::loop().
* Made Game::walkHero() set the person coordinates for the dragon after it warps him to a new location
* Added Game::getPerson() method (used by Script::talk())
* Added Game::setSpeechTick() method (set by Script::talk() and used inside the loop to determine when to switch to new text).
svn-id: r42994
* Added a separate mechanism to Game to keep track both of the current room number and the next room/gate. Periodically, I check whether the new room differs from the old one and, if it does, I do the change. Doing it any other would is nearly impossible because of the way the original scripts were written.
* Added GPL command Script::newRoom(). Rooms can now be traversed by clicking on their exits. Also, the intro animation partly works. Some parts go by far too soon. I assume this is because the engine still lacks a dialogue GPL command.
* Fixed bug where the gates array of a room was not cleared between uses.
* Save old jump value when we enter Script::run() and restore it in the end (mimicking the original engine).
* Fixed small bug where the gate was supposed to be stored as the first in-game variable and not the room number.
svn-id: r42957
* Added Game::start() method which is called from DraciEngine::go()
* Made Game::loop() suitable for calling from other places (like GPL scripts) by handling events, redrawing the screen, etc from inside. This way it doesn't freeze the game if it doesn't return immediately.
* Added Game::shouldQuit() and Game::setQuit() which can be used to signal the engine to quit.
* Fixed race condition related to mouse buttons not getting released.
* Instead of deleting frames for the title animation and adding a new one, reset the text for its frame.
svn-id: r42875
* Made GameObjects track their titles as Strings rather than byte *
* Made the engine display the title of the object under the cursor (added a special animation ID for that, kTitleText)
svn-id: r42839
* Added support for setting loop status to Game.
* Made some GPL commands check whether we are in the correct loop status before executing.
svn-id: r42731
* Added Game::getNumObjects() which returns the number of objects in the game
* Fixed segfault (accessing a null Animation *)
* Added some docs to various things
svn-id: r42683
* Fixed bug in Animation::nextFrame() which caused non-looping animations to linger on forever
* Stopped setting looping to false explicitly in AnimationManager::addAnimation() since the Animation constructor already does that
svn-id: r42657
* Instead, Animation::nextFrame() marks both the old and the new frame dirty. This makes it possible to only update the real screen when the animation changes and results in a pretty big speedup.
* Added utility method Animation::markDirtyRect() which takes a (Surface *) and marks a dirty rect on it for the current frame.
* Fixed artifacts when moving the dragon.
svn-id: r42652
* Now each Sprite (and hence frame in an animation) can have a separate zoom (which is needed for some animations in the game)
* Scale factors are not stored any more; instead, we only store scaled dimensions (since these are stored in the data files) and calculate the factors from those.
svn-id: r42647
* Made the dragon scale when it is in different parts of the room
* Added getters for relative coordinates (Animation::getRelativeX() and Animation::getRelativeY())
* Commented Game::loop() and Sprite::draw*() methods in more detail
svn-id: r42627
* Modified the engine to leverage BArchive's memory management capabilities by using its pointers to data directly instead of copying
* Removed GameObject destructor (not needed because of the above change)
* Changed some more data members from uint16 to uint
svn-id: r42555
Denis Kasak
Eugene Sandulenko