More item related decomp (#45)

* decompile sub_80918EC

* some more item related functions

* more item functions

* more decomp, fix types in other places

* more small functions

* more item related decomp

* one more weird branching item function

* fix global.h includes

* figured out branch pattern

* decompile sub_8090F58

* make temporary struct for function

* :crab: items.s is gone :crab:

* some renaming

* rename some obvious item related constants

* fix spelling error

1 files changed, 0 insertions, 648 deletions

diff --git a/src/items_1.c b/src/items_1.c
deleted file mode 100644
index f0061ce..0000000
--- a/src/items_1.c
+++ /dev/null
@@ -1,648 +0,0 @@
-#include "global.h"
-#include "item.h"
-#include "team_inventory.h"
-#include "random.h"
-#include "pokemon.h"
-#include "subStruct_203B240.h"
-
-#include <stddef.h>
-
-extern struct TeamInventory *gTeamInventory_203B460;
-extern EWRAM_DATA struct Item *gItemParametersData;
-
-extern void sub_80073B8(u32);
-extern u32 sub_8097DF0(char *, struct subStruct_203B240 **);
-extern void sub_8092A88(void*, u16);  // first arg is some struct
-extern void sub_80078A4(u32, u32, u32, u32, u32);
-extern u32 sub_8092B00(void*);
-extern u8* GetUnformattedTypeString(s16);
-extern u32 sub_8092BF4(void*);
-extern void sub_80073E0(u32);
-extern void xxx_format_and_draw(u32, u32, u8 *, u32, u32);
-
-extern u8 gUnknown_202DE58[0x58];
-extern u32 gUnknown_202DE30;
-extern u8* gPtrTypeText;  // ptr to "Type\0"
-extern u8* gPtrPPD0Text;  // ptr to "PP $d0 \0"
-extern u32 gUnknown_810A3F0[100];
-extern struct unkStruct_203B45C *gRecruitedPokemonRef;
-extern s16 gTypeGummiIQBoost[0x12][NUMBER_OF_GUMMIS];
-extern u16 gGummiStatBoostLUT;
-
-
-// s32 sub_8090FEC(s32 a1, u8* a2, u8 a3) 
-// {
-//   s32 i, j;
-//   s32 cond = 0;
-
-//   j = 0;
-//   for (i = 0; i < 4; i++) {
-//     s32 div = 0;
-//     s32 next = i + 1;
-//     register s32* unk_temp asm("r0");
-
-//     register UNUSED size_t unk_offs asm("r3") = i << 2;
-//     unk_temp = (s32*)0x81097B0;
-//     next = i + 1;
-//     if (a1 >= unk_temp[i]) {
-//       register s32 *temp_81097B0 asm("r2") = (s32*)0x81097B0;
-//       u32 _i = i;
-//       s32 diff;
-//       do {
-//         // correct other than register usage
-//         diff = temp_81097B0[_i];
-//         a1 -= diff;
-//         div++;
-//       } while (a1 >= diff);
-//     }
-
-//     if (div > 9) {
-//       div = 9;
-//     }
-//     // /correct
-
-//     if (!div && !cond) {
-//         if (a3) {
-//           *a2++ = 96;
-//         }
-//     }
-//     else {
-//       u8 temp;
-//       if (div) {
-//         u32 offs;
-
-//         cond = 1;
-//         offs = 2 * div;
-//         *a2++ = ((u8*)0x81097C4)[offs];
-//         temp  = ((u8*)0x81097C5)[offs];
-//       }
-//       else {
-//         *a2++ = ((u8*)0x81097C4)[0];
-//         temp  = ((u8*)0x81097C5)[0];
-//       }
-
-//       *a2++ = temp;
-//       j++;
-//     }
-//   }
-
-//   *a2++ = ((u8*)0x81097C4)[2 * a1];
-//   *a2++ = ((u8*)0x81097C5)[2 * a1];
-//   *a2 = 0;
-//   return j + 1;
-// }
-
-void FillInventoryGaps() 
-{
-  // fill inventory gaps
-  s32 slot_checking = 0;
-  s32 last_filled = 0;
-
-  do {
-    // effectively just a while loop 
-    if ((slot_checking < INVENTORY_SIZE) && !(slot_checking[gTeamInventory_203B460->teamItems].unk0 & 1)) {
-      // find next empty slot
-      do {
-        slot_checking++;
-      } while ((slot_checking < INVENTORY_SIZE) && !(slot_checking[gTeamInventory_203B460->teamItems].unk0 & 1));
-    }
-
-    if (slot_checking == INVENTORY_SIZE) {
-      break;
-    }
-
-    if (slot_checking > last_filled) {
-      // shift it down
-      gTeamInventory_203B460->teamItems[last_filled] = gTeamInventory_203B460->teamItems[slot_checking];
-    }
-    slot_checking++;
-    last_filled++;
-  } while (1);
-
-  // clear out the rest of the slots
-  for (; last_filled < INVENTORY_SIZE; last_filled++) {
-      struct ItemSlot *slot;
-#ifdef NONMATCHING
-      slot = &gTeamInventory_203B460->teamItems[last_filled];
-#else
-      size_t offs = last_filled << 2;
-      size_t _slot = offs;
-      _slot += (size_t)gTeamInventory_203B460->teamItems;
-      slot = (struct ItemSlot*)_slot; // &gTeamInventory_203B460->teamItems[end];
-#endif
-      slot->itemIndex = 0;
-      slot->numItems = 0;
-      slot->unk0 = 0;
-  }
-}
-
-s32 FindItemInInventory(u8 itemIndex) 
-{
-  s32 i;
-  for (i = 0; i < INVENTORY_SIZE; i++) {
-    if ((gTeamInventory_203B460->teamItems[i].unk0 & 1) && (gTeamInventory_203B460->teamItems[i].itemIndex == itemIndex)) {
-      return i;
-    }
-  }
-  return -1;
-}
-
-s32 GetItemCountInInventory(u8 _itemIndex) 
-{
-#ifdef NONMATCHING
-  s32 count = 0;
-  s32 i;
-  for (i = 0; i < INVENTORY_SIZE; i++) {
-    if ((gTeamInventory_203B460->teamItems[i].unk0 & 1) && (gTeamInventory_203B460->teamItems[i].itemIndex == _itemIndex)) {
-      count++;
-    }
-  }
-  return count;
-#else
-  // have to do hacky stuff to fix initialization order of r6 and r2
-  u32 itemIndex = _itemIndex;
-  s32 count = 0;
-  struct ItemSlot *slot = gTeamInventory_203B460->teamItems;
-  s32 one = 1;
-  s32 i = 19;
-
-  do {
-    register u32 unk0 asm("r1") = slot->unk0;
-    u32 bottom_bit = one;
-    bottom_bit &= unk0;
-    if (bottom_bit && (slot->itemIndex == itemIndex)) {
-      count++;
-    }
-    slot++;
-  } while(--i >= 0);
-  return count;
-#endif
-}
-
-s32 GetItemPossessionCount(u8 itemIndex) 
-{
-  s32 item_count = GetItemCountInInventory(itemIndex);
-  s32 i = 0;
-  
-  struct unkStruct_203B45C *_gRecruitedPokemonRef = gRecruitedPokemonRef;
-  for (i = 0; i < NUM_SPECIES; i++) {
-     struct PokemonStruct* pokemon = &_gRecruitedPokemonRef->pokemon[i];
-    if ((1 & pokemon->unk0)
-          && ((pokemon->unk0 >> 1) % 2)
-          && (pokemon->itemIndexHeld != ITEM_ID_NOTHING)
-          && (pokemon->itemIndexHeld == itemIndex)) {
-      item_count++;
-    }
-  }
-  return item_count;
-}
-
-void ShiftItemsDownFrom(s32 start) 
-{
-  s32 i, j;
-  for (i = start, j = start + 1; i < 19; i++, j++) {
-    gTeamInventory_203B460->teamItems[i] = gTeamInventory_203B460->teamItems[j];
-  }
-  gTeamInventory_203B460->teamItems[19].itemIndex = 0;
-  gTeamInventory_203B460->teamItems[19].unk0 = 0;
-}
-
-void ClearItemSlotAt(u32 index)
-{
-  gTeamInventory_203B460->teamItems[index].itemIndex = ITEM_ID_NOTHING;
-  gTeamInventory_203B460->teamItems[index].unk0 = 0;
-}
-
-bool8 sub_809124C(u8 itemIndex, u8 param_3)
-{
-  struct ItemSlot temp;
-  sub_8090A8C(&temp, itemIndex, param_3);
-  return AddItemToInventory(&temp);
-}
-
-bool8 sub_8091274(struct ItemSlot_ALT* slot) 
-{
-  struct ItemSlot temp;
-
-  sub_8090B64(&temp, slot);
-  return AddItemToInventory(&temp);
-}
-
-bool8 AddItemToInventory(const struct ItemSlot* slot) 
-{
-  s32 i;
-
-  // try to add item to inventory, return 1 if failed
-  for (i = 0; i < INVENTORY_SIZE; i++) {
-    UNUSED struct ItemSlot* current = &gTeamInventory_203B460->teamItems[i];
-    if (!(i[gTeamInventory_203B460->teamItems].unk0 & 1)) {
-      gTeamInventory_203B460->teamItems[i] = *slot;
-      return FALSE;
-    }
-  }
-  return TRUE;
-}
-
-void ConvertMoneyItemToMoney() 
-{
-  s32 i = 0;
-
-  do {
-    UNUSED struct TeamInventory * _gTeamInventory_203B460 = gTeamInventory_203B460;
-    UNUSED size_t offs = offsetof(struct TeamInventory, teamItems[i]);
-
-    struct ItemSlot* current_slot = &gTeamInventory_203B460->teamItems[i];
-    if ((current_slot->unk0 & 1) && (current_slot->itemIndex == ITEM_ID_POKE)) {
-      u32 result;
-
-      result = GetMoneyValue(current_slot);
-      AddToTeamMoney(result);
-      current_slot->itemIndex = 0;
-      current_slot->numItems = 0;
-      current_slot->unk0 = 0;
-    }
-  } while (++i < INVENTORY_SIZE);
-  FillInventoryGaps();
-
-  i = 0;
-  do {
-    s32 lowest_index = -1;
-    UNUSED size_t offs = offsetof(struct TeamInventory, teamItems[i]);
-
-    bool8 item_occupied = i[gTeamInventory_203B460->teamItems].unk0 & 1;
-    s32 next = i + 1;
-    
-    if (item_occupied) {
-      s32 lowest_order = GetItemOrder(gTeamInventory_203B460->teamItems[i].itemIndex);
-      s32 j;
-
-      // find next lowest
-      for (j = next; j < INVENTORY_SIZE; j++) {
-        UNUSED size_t offs = offsetof(struct TeamInventory, teamItems[j]);
-        if ((j[gTeamInventory_203B460->teamItems].unk0 & 1) && (lowest_order > GetItemOrder(gTeamInventory_203B460->teamItems[j].itemIndex))) {
-          lowest_index = j;
-          lowest_order = GetItemOrder(gTeamInventory_203B460->teamItems[j].itemIndex);
-        }
-      }
-
-      if (lowest_index >= 0) {
-        // swap the slots
-        struct ItemSlot current = gTeamInventory_203B460->teamItems[i];
-        gTeamInventory_203B460->teamItems[i] = gTeamInventory_203B460->teamItems[lowest_index]; 
-        gTeamInventory_203B460->teamItems[lowest_index] = current;
-      }
-    }
-  } while (++i < INVENTORY_SIZE);
-  FillInventoryGaps();
-}
-
-void AddToTeamMoney(s32 amount)
-{
-  s32 clamped_money;
-  gTeamInventory_203B460->teamMoney += amount;
-
-  // clamp money
-  clamped_money = 99999;
-  if (gTeamInventory_203B460->teamMoney <= 99999) {
-    if (gTeamInventory_203B460->teamMoney >= 0) {
-      return;
-    }
-    clamped_money = 0;
-  }
-  gTeamInventory_203B460->teamMoney = clamped_money;
-}
-
-u16 GetItemMove(u8 index) 
-{
-  return gItemParametersData[index].move;
-}
-
-u32 sub_80913E0(struct ItemSlot* slot, u32 a2, struct subStruct_203B240 ** a3) 
-{
-  u8 buffer88[88];  // some struct
-
-  GetItemDescription(slot->itemIndex);
-  sub_8090DC4(buffer88, slot->itemIndex, 0);
-  if (slot->itemIndex == ITEM_ID_USED_TM) {
-    // empty TM
-    sub_8090DC4(&gUnknown_202DE58, (u8)(slot->numItems + 125), 0);
-  }
-  sub_80073B8(a2);
-  xxx_format_and_draw(16, 0, buffer88, a2, 0);
-  
-  xxx_format_and_draw(8, 24, GetItemDescription(slot->itemIndex), a2, 0);
-  if (GetItemType(slot->itemIndex) == ITEM_TYPE_TM) {
-    u8* buffer8 = buffer88 + 0x50;  // field in struct
-    u16 move = GetItemMove(slot->itemIndex);
-    u8 moves_data;
-    u8* typestring;
-    u32 result;
-
-    sub_8092A88(buffer8, move);
-    sub_80078A4(a2, 4, 82, 200, 7);
-    xxx_format_and_draw(4, 84, gPtrTypeText, a2, 0);
-    moves_data = sub_8092B00(buffer8);
-    typestring = GetUnformattedTypeString(moves_data);
-    xxx_format_and_draw(64, 84, typestring, a2, 0);
-    result = sub_8092BF4(buffer8);
-    gUnknown_202DE30 = result;
-    xxx_format_and_draw(128, 84, gPtrPPD0Text, a2, 0);
-  }
-
-  sub_80073E0(a2);
-  return sub_8097DF0(GetItemDescription(slot->itemIndex), a3);
-}
-
-bool8 CanSellItem(u32 id) 
-{
-  u8 id_;
-  id = (u8)id;
-  id_ = id;
-
-  if((id != ITEM_ID_NOTHING)
-      && (id != ITEM_ID_POKE)
-      && (id != ITEM_ID_ROCK_PART)
-      && (id != ITEM_ID_ICE_PART)
-      && (id != ITEM_ID_STEEL_PART)
-      && (id != ITEM_ID_MUSIC_BOX)
-      && (GetItemSellPrice(id_))
-      && (GetItemBuyPrice(id_))) {
-          return TRUE;
-    }
-    return FALSE;
-}
-
-bool8 IsNotMoneyOrUsedTMItem(u8 id) 
-{
-  if (id == ITEM_ID_NOTHING) {
-    return FALSE;
-  }
-  else if (id == ITEM_ID_POKE) {
-    return FALSE;
-  }
-  else if (id == ITEM_ID_USED_TM) {
-    return FALSE;
-  }
-  return TRUE;
-}
-
-bool8 IsNotSpecialItem(u8 id) 
-{
-  if (id == ITEM_ID_NOTHING) {
-    return FALSE;
-  }
-  else if (id == ITEM_ID_POKE) {
-    return FALSE;
-  }
-  else if (id == ITEM_ID_ROCK_PART) {
-    return FALSE;
-  }
-  else if (id == ITEM_ID_ICE_PART) {
-    return FALSE;
-  }
-  else if (id == ITEM_ID_STEEL_PART) {
-    return FALSE;
-  }
-  else if (id == ITEM_ID_MUSIC_BOX) {
-    return FALSE;
-  }
-  return TRUE;
-}
-
-bool8 IsEdibleItem(u8 id) 
-{
-  if (!((GetItemType(id) == ITEM_TYPE_BERRY_SEED) || (GetItemType(id) == ITEM_TYPE_APPLE_GUMMI))) {
-    return FALSE;
-  }
-  return TRUE;
-}
-
-bool8 IsHMItem(u8 id) 
-{
-  if (id == ITEM_ID_CUT) {
-    return TRUE;
-  }
-  else if (id == ITEM_ID_FLY) {
-    return TRUE;
-  }
-  else if (id == ITEM_ID_SURF) {
-    return TRUE;
-  }
-  else if (id == ITEM_ID_STRENGTH) {
-    return TRUE;
-  }
-  else if (id == ITEM_ID_FLASH) {
-    return TRUE;
-  }
-  else if (id == ITEM_ID_ROCK_SMASH) {
-    return TRUE;
-  }
-  else if (id == ITEM_ID_WATERFALL) {
-    return TRUE;
-  }
-  else if (id == ITEM_ID_DIVE) {
-    return TRUE;
-  }
-  return FALSE;
-}
-
-u32 GetMoneyValue(struct ItemSlot* slot) 
-{
-  return gUnknown_810A3F0[slot->numItems];
-}
-
-u32 GetMoneyValue2(struct ItemSlot* slot) 
-{
-  return gUnknown_810A3F0[slot->numItems];
-}
-
-void GetGummiItemStatBoost(struct PokemonStruct* pokemon, u8 itemIndex, u8 a3, struct unkStruct_80915F4* a4) 
-{
-  // item stat buff?
-  s8 result;
-
-  a4->unk0 = (u16)-1;
-  a4->unk2 = 0;
-  result = IsGummiItem(itemIndex);
-  if (result) {
-    u8 pokemon_type_0 = GetPokemonType(pokemon->speciesNum, 0);
-    u8 pokemon_type_1 = GetPokemonType(pokemon->speciesNum, 1);
-    u32 gummi_index = itemIndex - ITEM_ID_WHITE_GUMMI + 1;
-    s32 value0;
-    s32 value1;
-    s32 diff;
-    u16 boost_amount;
-
-    value0 = gTypeGummiIQBoost[pokemon_type_0][gummi_index];
-    value1 = gTypeGummiIQBoost[pokemon_type_1][gummi_index];
-    diff  = pokemon->IQ;
-
-    pokemon->IQ += value0 + value1;
-    diff = pokemon->IQ - diff;
-    if (pokemon->IQ <= 0) {
-      pokemon->IQ = 1;
-    }
-    if (pokemon->IQ > 999) {
-      pokemon->IQ = 999;
-    }
-
-    boost_amount = 0;
-    if (diff <= 8) {
-      boost_amount = 1;
-      if (diff <= 4) {
-        boost_amount = 3;
-        if (diff > 2) {
-          boost_amount = 2;
-        }
-      }
-    }
-    a4->unk0 = boost_amount;
-    if (!a3) {
-      u16 boost_flags;
-      if (!boost_amount && RandomCapped(16) == 10) {
-        // supa gummi (all stats boost)
-        boost_flags = 0xf;
-      }
-      else {
-        s32 random_index = RandomCapped(4);
-        u16* table = &gGummiStatBoostLUT;
-        boost_flags = table[random_index];
-      }
-
-      a4->unk2 = boost_flags;
-      boost_flags = a4->unk2;
-      if (a4->unk2 & 1) {
-        if (pokemon->pokeAtt < 255) {
-          pokemon->pokeAtt++;
-        }
-        else {
-          // fix operand order
-          u16 unk2 = a4->unk2;
-          unk2 &= ~1;
-          a4->unk2 &= unk2;
-        }
-      }
-      if (a4->unk2 & 2) {
-        if (pokemon->pokeSPAtt < 255) {
-          pokemon->pokeSPAtt++;
-        }
-        else {
-          a4->unk2 &= ~2;
-        }
-      }
-      if (a4->unk2 & 4) {
-        if (pokemon->pokeDef < 255) {
-          pokemon->pokeDef++;
-        }
-        else {
-          a4->unk2 &= ~4;
-        }
-      }
-      if (a4->unk2 & 8) {
-        if (pokemon->pokeSPDef < 255) {
-          pokemon->pokeSPDef++;
-        }
-        else {
-          a4->unk2 &= ~8;
-        }
-      }
-    }
-  }
-}
-
-bool8 IsGummiItem(u8 itemIndex) 
-{
-  if (itemIndex < ITEM_ID_WHITE_GUMMI) {
-    return FALSE;
-  }
-  if (itemIndex > ITEM_ID_SILVER_GUMMI) {
-    return FALSE;
-  }
-  return TRUE;
-}
-
-bool8 HasGummiItem() 
-{
-  s32 i;
-  for (i = 0; i < INVENTORY_SIZE; i++) {
-    UNUSED size_t offs = offsetof(struct TeamInventory, teamItems[i]);
-    if ((i[gTeamInventory_203B460->teamItems].unk0 & 1) && IsGummiItem(i[gTeamInventory_203B460->teamItems].itemIndex)) {
-      return TRUE;
-    }
-  }
-  return FALSE;
-}
-
-void MoveToStorage(struct ItemSlot* slot) 
-{
-  if (IsThrowableItem(slot->itemIndex)) {
-    gTeamInventory_203B460->teamStorage[slot->itemIndex] += slot->numItems;
-  }
-  else {
-    gTeamInventory_203B460->teamStorage[slot->itemIndex]++;
-  }
-
-  if (gTeamInventory_203B460->teamStorage[slot->itemIndex] > 999) {
-    gTeamInventory_203B460->teamStorage[slot->itemIndex] = 999;
-  }
-}
-
-s32 xxx_count_inv_unk230() 
-{
-  s32 i;
-  s32 counter = 0;
-  for (i = 0; i < 8; i++) {
-    if (gTeamInventory_203B460->unk230[i].unk0) {
-      counter++;
-    }
-  }
-  return counter;
-}
-
-void xxx_init_unk230_substruct(u8 i) 
-{
-  struct subStruct_203B460* unk230;
-
-  unk230 = &gTeamInventory_203B460->unk230[i];
-  unk230->unk0 = 0;
-  unk230->unk1 = 0;
-}
-
-struct subStruct_203B460* sub_809185C(u8 i) 
-{
-  return &gTeamInventory_203B460->unk230[i];
-}
-
-void xxx_fill_unk230_gaps()
-{
-  // fill unk230 gaps
-  // basically the same as FillInventoryGaps
-  s32 slot_checking = 0;
-  s32 last_filled = 0;
-
-  do {
-    // effectively just a while loop
-    if ((slot_checking < 8) && !gTeamInventory_203B460->unk230[slot_checking].unk0) {
-      do {
-        // find next empty slot
-        slot_checking++;
-      } while ((slot_checking < 8) && !gTeamInventory_203B460->unk230[slot_checking].unk0);
-    }
-
-    if (slot_checking == 8) {
-      break;
-    }
-
-    if (slot_checking > last_filled) {
-      // shift it down
-      gTeamInventory_203B460->unk230[last_filled] = gTeamInventory_203B460->unk230[slot_checking];
-    }
-    slot_checking++;
-    last_filled++;
-  } while (1);
-
-  // clear out the rest of the slots
-  for (; last_filled < 8; last_filled++) {
-    xxx_init_unk230_substruct(last_filled);
-  }
-}