- Added code to check for waterfalls in all 8 cardinal directions

- Fixed bug in which swamp caused a false negative for the wall-rounding code
- Made directions into an enum, with an operator++ and two difference arrays (for x and y).
- Added case to wall-rounding code to handle a lone pillar of wall
- The block_horse flag is cleared when importing a poison or disease terrain, because horses can now not cross status-inflicting terrain at all.
- Added the book Finder icon

git-svn-id: http://openexile.googlecode.com/svn/trunk@64 4ebdad44-0ea0-11de-aab3-ff745001d230

osx/boe.main.cpp

@@ -1,6 +1,7 @@
 
 //#include "item.h"
 
+#define DIR_ARRAY_DEF
 #include "boe.global.h"
 #include "classes.h"
 
@@ -60,6 +61,8 @@ long start_time;
 
 short on_spell_menu[2][62];
 short on_monst_menu[256];
+signed char dir_x_dif[9] = {0,1,1,1,0,-1,-1,-1,0};
+signed char dir_y_dif[9] = {-1,-1,0,1,1,1,0,-1,0};
 
 // Cursors 
 extern short current_cursor;