begin decompiling item.s

src/item.c

@@ -0,0 +1,76 @@
+#include "global.h"
+#include "item.h"
+
+extern void ApplyNewEncyprtionKeyToHword(u16* hword, u32 newKey);
+
+enum
+{
+    ITEMS_POCKET,
+    BALLS_POCKET,
+    TMHM_POCKET,
+    BERRIES_POCKET,
+    KEYITEMS_POCKET
+};
+
+struct BagItem
+{
+    struct ItemSlot (*items)[];
+    u8 maxPerPocket;
+};
+
+extern struct BagItem gBagItems[];
+
+u16 GetBagItemQuantity(u16* quantity)
+{
+    return gSaveBlock2Ptr->encryptionKey ^ *quantity;
+}
+
+void SetBagItemQuantity(u16* quantity, u16 newValue)
+{
+    *quantity =  newValue ^ gSaveBlock2Ptr->encryptionKey;
+}
+
+u16 GetBagItemId(u16* slot)
+{
+    return *slot;
+}
+
+void SetBagItemId(u16* slot, u16 newItemId)
+{
+    *slot = newItemId;
+}
+
+void ApplyNewEncyprtionKeyToBagItems(u32 newKey)
+{
+    u32 pocket, item;
+    for (pocket = 0; pocket < 5; pocket++)
+    {
+        for (item = 0; item < gBagItems[pocket].maxPerPocket; item++)
+            ApplyNewEncyprtionKeyToHword(&((*gBagItems[pocket].items)[item].quantity), newKey);
+    }
+}
+
+void ApplyNewEncyprtionKeyToBagItems_(u32 newKey) // really GF?
+{
+    ApplyNewEncyprtionKeyToBagItems(newKey);
+}
+
+// TODO: move those max values to defines
+
+void SetBagItemsPointers(void)
+{
+    gBagItems[ITEMS_POCKET].items = &gSaveBlock1Ptr->bagPocket_Items;
+    gBagItems[ITEMS_POCKET].maxPerPocket = 30;
+
+    gBagItems[KEYITEMS_POCKET].items = &gSaveBlock1Ptr->bagPocket_KeyItems;
+    gBagItems[KEYITEMS_POCKET].maxPerPocket = 30;
+
+    gBagItems[BALLS_POCKET].items = &gSaveBlock1Ptr->bagPocket_PokeBalls;
+    gBagItems[BALLS_POCKET].maxPerPocket = 16;
+
+    gBagItems[TMHM_POCKET].items = &gSaveBlock1Ptr->bagPocket_TMHM;
+    gBagItems[TMHM_POCKET].maxPerPocket = 64;
+
+    gBagItems[BERRIES_POCKET].items = &gSaveBlock1Ptr->bagPocket_Berries;
+    gBagItems[BERRIES_POCKET].maxPerPocket = 46;
+}