#define DEFAULT_KEY_SAVE_GAME KSYM_F1
#define DEFAULT_KEY_LOAD_GAME KSYM_F2
-/* values for move directions */
+/* values for move directions and special "button" keys */
#define MV_NO_MOVING 0
#define MV_LEFT (1 << 0)
#define MV_RIGHT (1 << 1)
#define MV_UP (1 << 2)
#define MV_DOWN (1 << 3)
+#define MV_BUTTON_1 (1 << 4)
+#define MV_BUTTON_2 (1 << 5)
+#define MV_MOTION (MV_LEFT | MV_RIGHT | MV_UP | MV_DOWN)
+#define MV_BUTTON (MV_BUTTON_1 | MV_BUTTON_2)
/* values for button status */
#define MB_NOT_PRESSED FALSE