#define CE_LEFT_BY_PLAYER 22
#define CE_OTHER_GETS_ENTERED 23
#define CE_OTHER_GETS_LEFT 24
+#define CE_SWITCHED_BY_PLAYER 25
+#define CE_OTHER_GETS_SWITCHED 26
-/* values for derived change events (determined from properties above) */
-#define CE_TOUCHING_SOME_SIDE 25 /* summarized left/right/up/down/any */
-
-#define NUM_CHANGE_EVENTS 26
+#define NUM_CHANGE_EVENTS 27
#define CE_BITMASK_DEFAULT 0