Before the status line would show invalid input for a frame what was
especially annoying during animations, as they currently tend to block the game
loop for their duration.
The original game's time was stored in 55ms ticks but we just run on
milliseconds. setAnimationTimer() sets the ticks the currrent room's
animation() function will not be called.
Most notably changes are,
Handling of object state when calling drawImage() for
inverse section rendering
Beginning to convert GUI to GuiElements (_guiCommandButton)
Mouse Input handling
This is still WIP but better than the glitchfest before.
Of course the short description does not adequately describe the changes
made with this commit and I assume this won't be the last big
restructuring unfortunately.
Focus of this commit was to implement/fix the code so the main user
interface can be rendered. Bugs in the core routines for rendering
Messages and Images were fixed as well.
