Normal hidden item script; hidden item attr enum

include/constants/flags.h

@@ -668,7 +668,7 @@
 #define FLAG_0x240               0x240
 #define FLAG_0x241               0x241
 #define FLAG_0x242               0x242
-#define FLAG_0x243               0x243
+#define FLAG_GOT_COIN_CASE               0x243
 #define FLAG_0x244               0x244
 #define FLAG_0x245               0x245
 #define FLAG_0x246               0x246

include/field_specials.h

@@ -3,6 +3,14 @@
 
 #include "global.h"
 
+enum HiddenItemAttr
+{
+    HIDDEN_ITEM_ID = 0,
+    HIDDEN_ITEM_FLAG,
+    HIDDEN_ITEM_QUANTITY,
+    HIDDEN_ITEM_UNDERFOOT
+};
+
 u8 GetLeadMonIndex(void);
 u8 CountDigits(u16 number);
 void TV_PrintIntToStringVar(u8, int);

include/global.fieldmap.h

@@ -122,9 +122,9 @@ struct CoordEvent
 
 struct HiddenItemStruct
 {
-    u32 quantity:16;
+    u32 itemId:16;
     u32 hiddenItemId:8; // flag offset to determine flag lookup
-    u32 field_03_0:7;
+    u32 quantity:7;
     u32 isUnderfoot:1;
 };