Jeck - [JGE recompile needed] Shop cleanup, Interface enhancements.

Added basic transition system that works with GameApp's phases. Currently does a fade-out between elements, which works well in some places and not-so-well in others. We'll definitely want to think about where and where not to use it... they'd work a lot better if we could spawn a thread to handle loading the next state while transitioning.

Also cleaned up the shop a bit, so it uses ReadButton() instead of GetButtonClick()-- hence the slight change to JGE. Added a tiled image for the task board, which loads conservatively (I tried 128x128, but it didn't look as good).

projects/mtg/include/GameState.h

@@ -11,15 +11,23 @@ using namespace std;
 
 enum ENUM_GAME_STATE
   {
+    GAME_STATE_NONE = -1,
     GAME_STATE_MENU = 1,
     GAME_STATE_DUEL = 2,
     GAME_STATE_DECK_VIEWER = 3,
     GAME_STATE_SHOP = 4,
     GAME_STATE_OPTIONS = 5,
     GAME_STATE_AWARDS = 6,
-    GAME_STATE_MAX = 7,
+    GAME_STATE_TRANSITION = 7,
+    GAME_STATE_MAX = 8,
   };
 
+enum ENUM_GS_TRANSITION
+  {
+    TRANSITION_FADE = 0,
+    TRANSITION_FADE_IN = 1,
+    MAX_TRANSITION
+  };
 
 class GameApp;
 class SimpleMenu;