- Got the new dialog engine into a semi-functional, mostly crash-free state!

- Created constants for the number of monster and terrain sheets, so that we can easily add more.
- Added init_sheets() function to initialize cPict's static variables.
- Moved the code for checking for an interrupt key out into a separate function so that it can be used elsewhere as well.
- Added error checking to make sure a sheet exists before drawing from it. (Note: Will need to catch the exception and draw a blank rather than simply terminating.)
- Fixed bug where status icons were drawn instead of terrain map icons.

git-svn-id: http://openexile.googlecode.com/svn/trunk@99 4ebdad44-0ea0-11de-aab3-ff745001d230

osx/boe.actions.h

@@ -27,3 +27,4 @@ void setup_outdoors(location where);
 short get_outdoor_num();
 short count_walls(location loc);
 bool is_sign(ter_num_t ter);
+bool check_for_interrupt();