decompile label more of item.s

src/item.c

@@ -1,7 +1,19 @@
 #include "global.h"
 #include "item.h"
+#include "string_util.h"
+#include "text.h"
+#include "event_data.h"
 
 extern void ApplyNewEncyprtionKeyToHword(u16* hword, u32 newKey);
+extern bool8 InBattlePyramid(void);
+
+extern const u8 gOtherText_PokeBalls[];
+extern const u8 gOtherText_Berries[];
+extern const u8 gOtherText_Berry[];
+extern const u8 gUnknown_085897E4[][28]; // not sure what this one is
+
+bool8 CheckPyramidBagHasItem(u16 itemId, u16 count);
+bool8 CheckPyramidBagHasSpace(u16 itemId, u16 count);
 
 enum
 {
@@ -12,14 +24,6 @@ enum
     KEYITEMS_POCKET
 };
 
-struct BagItem
-{
-    struct ItemSlot (*items)[];
-    u8 maxPerPocket;
-};
-
-extern struct BagItem gBagItems[];
-
 u16 GetBagItemQuantity(u16* quantity)
 {
     return gSaveBlock2Ptr->encryptionKey ^ *quantity;
@@ -45,8 +49,8 @@ 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);
+        for (item = 0; item < gBagPockets[pocket].capacity; item++)
+            ApplyNewEncyprtionKeyToHword(&(gBagPockets[pocket].itemSlots[item].quantity), newKey);
     }
 }
 
@@ -59,18 +63,166 @@ void ApplyNewEncyprtionKeyToBagItems_(u32 newKey) // really GF?
 
 void SetBagItemsPointers(void)
 {
-    gBagItems[ITEMS_POCKET].items = &gSaveBlock1Ptr->bagPocket_Items;
-    gBagItems[ITEMS_POCKET].maxPerPocket = 30;
+    gBagPockets[ITEMS_POCKET].itemSlots = gSaveBlock1Ptr->bagPocket_Items;
+    gBagPockets[ITEMS_POCKET].capacity = 30;
 
-    gBagItems[KEYITEMS_POCKET].items = &gSaveBlock1Ptr->bagPocket_KeyItems;
-    gBagItems[KEYITEMS_POCKET].maxPerPocket = 30;
+    gBagPockets[KEYITEMS_POCKET].itemSlots = gSaveBlock1Ptr->bagPocket_KeyItems;
+    gBagPockets[KEYITEMS_POCKET].capacity = 30;
 
-    gBagItems[BALLS_POCKET].items = &gSaveBlock1Ptr->bagPocket_PokeBalls;
-    gBagItems[BALLS_POCKET].maxPerPocket = 16;
+    gBagPockets[BALLS_POCKET].itemSlots = gSaveBlock1Ptr->bagPocket_PokeBalls;
+    gBagPockets[BALLS_POCKET].capacity = 16;
 
-    gBagItems[TMHM_POCKET].items = &gSaveBlock1Ptr->bagPocket_TMHM;
-    gBagItems[TMHM_POCKET].maxPerPocket = 64;
+    gBagPockets[TMHM_POCKET].itemSlots = gSaveBlock1Ptr->bagPocket_TMHM;
+    gBagPockets[TMHM_POCKET].capacity = 64;
 
-    gBagItems[BERRIES_POCKET].items = &gSaveBlock1Ptr->bagPocket_Berries;
-    gBagItems[BERRIES_POCKET].maxPerPocket = 46;
+    gBagPockets[BERRIES_POCKET].itemSlots = gSaveBlock1Ptr->bagPocket_Berries;
+    gBagPockets[BERRIES_POCKET].capacity = 46;
 }
+
+void CopyItemName(u16 itemId, u8 *string)
+{
+    StringCopy(string, ItemId_GetItem(itemId)->name);
+}
+
+void CopyItemNameHandlePlural(u16 itemId, u8 *string, u32 quantity)
+{
+    if (itemId == 4)
+    {
+        if (quantity < 2)
+            StringCopy(string, ItemId_GetItem(4)->name);
+        else
+            StringCopy(string, gOtherText_PokeBalls);
+    }
+    else
+    {
+        if (itemId >= 0x85 && itemId <= 0xAF)
+            GetBerryCountString(string, gUnknown_085897E4[itemId], quantity);
+        else
+            StringCopy(string, ItemId_GetItem(itemId)->name);
+    }
+}
+
+void GetBerryCountString(u8* dst, const u8* berryName, u32 quantity)
+{
+    const u8* berryString;
+    u8* txtPtr;
+
+    if (quantity < 2)
+        berryString = gOtherText_Berry;
+    else
+        berryString = gOtherText_Berries;
+    txtPtr = StringCopy(dst, berryName);
+    *txtPtr = CHAR_SPACE;
+    StringCopy(txtPtr + 1, berryString);
+}
+
+bool8 IsBagPocketNonEmpty(u8 pocket)
+{
+    u8 i;
+
+    for (i = 0; i < gBagPockets[pocket - 1].capacity; i++)
+    {
+        if (gBagPockets[pocket - 1].itemSlots[i].itemId != 0)
+            return TRUE;
+    }
+    return FALSE;
+}
+
+bool8 CheckBagHasItem(u16 itemId, u16 count)
+{
+    u8 i;
+    u8 pocket;
+
+    if (ItemId_GetPocket(itemId) == 0)
+        return FALSE;
+    if (InBattlePyramid() || FlagGet(0x4004) == TRUE)
+        return CheckPyramidBagHasItem(itemId, count);
+    pocket = ItemId_GetPocket(itemId) - 1;
+    //Check for item slots that contain the item
+    for (i = 0; i < gBagPockets[pocket].capacity; i++)
+    {
+        if (gBagPockets[pocket].itemSlots[i].itemId == itemId)
+        {
+            u16 quantity;
+            //Does this item slot contain enough of the item?
+            quantity = GetBagItemQuantity(&gBagPockets[pocket].itemSlots[i].quantity);
+            if (quantity >= count)
+                return TRUE;
+            count -= quantity;
+            //Does this item slot and all previous slots contain enough of the item?
+            if (count == 0)
+                return TRUE;
+        }
+    }
+    return FALSE;
+}
+
+bool8 HasAtLeastOneBerry(void)
+{
+    u16 i;
+    for (i = 0x85; i < 0xB3; i++)
+    {
+        if (CheckBagHasItem(i, 1) == TRUE)
+        {
+            gScriptResult = 1;
+            return TRUE;
+        }
+    }
+    gScriptResult = 0;
+    return FALSE;
+}
+
+/* Refuses to match.
+bool8 CheckBagHasSpace(u16 itemId, u16 count)
+{
+    u8 i;
+    u8 pocket;
+    u16 slotCapacity;
+    u16 quantity;
+
+    if (ItemId_GetPocket(itemId) == 0)
+        return FALSE;
+    if (InBattlePyramid() || FlagGet(0x4004) == TRUE)
+        return CheckPyramidBagHasSpace(itemId, count);
+    pocket = ItemId_GetPocket(itemId) - 1;
+    if (pocket != BERRIES_POCKET)
+        slotCapacity = 99;
+    else
+        slotCapacity = 999;
+
+    //Check space in any existing item slots that already contain this item
+    for (i = 0; i < gBagPockets[pocket].capacity; i++)
+    {
+        if (gBagPockets[pocket].itemSlots[i].itemId == itemId)
+        {
+            quantity = GetBagItemQuantity(&gBagPockets[pocket].itemSlots[i].quantity);
+            if (quantity + count <= slotCapacity)
+                return TRUE;
+            if (pocket == TMHM_POCKET || pocket == BERRIES_POCKET)
+                return FALSE;
+            count -= slotCapacity - quantity;
+            if (count == 0)
+                return TRUE;
+        }
+    }
+
+    //Check space in empty item slots
+    if (count > 0)
+    {
+        for (i = 0; i < gBagPockets[pocket].capacity; i++)
+        {
+            if (gBagPockets[pocket].itemSlots[i].itemId == 0)
+            {
+                if (count <= slotCapacity)
+                    return TRUE;
+                if (pocket == TMHM_POCKET || pocket == BERRIES_POCKET)
+                    return FALSE;
+                count -= slotCapacity;
+            }
+        }
+        if (count > 0)
+            return FALSE; //No more item slots. The bag is full
+    }
+
+    return TRUE;
+}*/