shithub: zelda3

ref: aa6b257fd20b9ed3f1a1c2755253249ee510f249
dir: /hud.c/

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#include "hud.h"
#include "zelda_rtl.h"

#include "variables.h"
#include "messaging.h"

enum {
  kNewStyleInventory = 0,
  kHudItemCount = kNewStyleInventory ? 24 : 20,
};

typedef struct ItemBoxGfx {
  uint16 v[4];
} ItemBoxGfx;

static void Hud_DrawItem(uint16 *dst, const ItemBoxGfx *src);
static bool Hud_DoWeHaveThisItem(uint8 item);
static void Hud_EquipPrevItem(uint8 *item);
static void Hud_EquipNextItem(uint8 *item);
static int Hud_GetItemPosition(int item);
static void Hud_ReorderItem(int direction);


const uint8 kMaxBombsForLevel[] = { 10, 15, 20, 25, 30, 35, 40, 50 };
const uint8 kMaxArrowsForLevel[] = { 30, 35, 40, 45, 50, 55, 60, 70 };
static const uint8 kMaxHealthForLevel[] = { 9, 9, 9, 9, 9, 9, 9, 9, 17, 17, 17, 17, 17, 17, 17, 25, 25, 25, 25, 25, 25 };

#define HUDXY(x, y) ((x) + (y) * 32)

static const uint16 kHudItemInVramPtr_New[24] = {
  HUDXY(2,  7), HUDXY(5,  7), HUDXY(8,  7), HUDXY(11,  7), HUDXY(14,  7), HUDXY(17, 7),
  HUDXY(2, 10), HUDXY(5, 10), HUDXY(8, 10), HUDXY(11, 10), HUDXY(14, 10), HUDXY(17, 10),
  HUDXY(2, 13), HUDXY(5, 13), HUDXY(8, 13), HUDXY(11, 13), HUDXY(14, 13), HUDXY(17, 13),
  HUDXY(2, 16), HUDXY(5, 16), HUDXY(8, 16), HUDXY(11, 16), HUDXY(14, 16), HUDXY(17, 16),
};

static const uint16 kHudItemInVramPtr_Old[20] = {
  HUDXY(4,  7), HUDXY(7,  7), HUDXY(10,  7), HUDXY(13,  7), HUDXY(16,  7),
  HUDXY(4, 10), HUDXY(7, 10), HUDXY(10, 10), HUDXY(13, 10), HUDXY(16, 10),
  HUDXY(4, 13), HUDXY(7, 13), HUDXY(10, 13), HUDXY(13, 13), HUDXY(16, 13),
  HUDXY(4, 16), HUDXY(7, 16), HUDXY(10, 16), HUDXY(13, 16), HUDXY(16, 16),
};


#define kHudItemInVramPtr (kNewStyleInventory ? kHudItemInVramPtr_New : kHudItemInVramPtr_Old)

static const uint16 kHudBottlesGfx[128] = {
  0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x255c, 0x2564, 0x2562, 0x2557, 0x2561, 0x255e, 0x255e, 0x255c,
  0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2551, 0x255e, 0x2563, 0x2563, 0x255b, 0x2554, 0x24f5, 0x24f5,
  0x255b, 0x2558, 0x2555, 0x2554, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x255c, 0x2554, 0x2553, 0x2558, 0x2552, 0x2558, 0x255d, 0x2554,
  0x255c, 0x2550, 0x2556, 0x2558, 0x2552, 0x24f5, 0x24f5, 0x24f5, 0x255c, 0x2554, 0x2553, 0x2558, 0x2552, 0x2558, 0x255d, 0x2554,
  0x2552, 0x2564, 0x2561, 0x2554, 0x256a, 0x2550, 0x255b, 0x255b, 0x255c, 0x2554, 0x2553, 0x2558, 0x2552, 0x2558, 0x255d, 0x2554,
  0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2555, 0x2550, 0x2554, 0x2561, 0x2558, 0x2554, 0x24f5, 0x24f5,
  0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2551, 0x2554, 0x2554, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5,
  0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2556, 0x255e, 0x255e, 0x2553, 0x24f5, 0x2551, 0x2554, 0x2554,
};

static const ItemBoxGfx kHudItemBottles[9] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x2044, 0x2045, 0x2046, 0x2047},
  {0x2837, 0x2838, 0x2cc3, 0x2cd3},
  {0x24d2, 0x64d2, 0x24e2, 0x24e3},
  {0x3cd2, 0x7cd2, 0x3ce2, 0x3ce3},
  {0x2cd2, 0x6cd2, 0x2ce2, 0x2ce3},
  {0x2855, 0x6855, 0x2c57, 0x2c5a},
  {0x2837, 0x2838, 0x2839, 0x283a},
  {0x2837, 0x2838, 0x2839, 0x283a},
};
static const ItemBoxGfx kHudItemBow[5] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x28ba, 0x28e9, 0x28e8, 0x28cb},
  {0x28ba, 0x284a, 0x2849, 0x28cb},
  {0x28ba, 0x28e9, 0x28e8, 0x28cb},
  {0x28ba, 0x28bb, 0x24ca, 0x28cb},
};
static const ItemBoxGfx kHudItemBoomerang[3] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x2cb8, 0x2cb9, 0x2cf5, 0x2cc9},
  {0x24b8, 0x24b9, 0x24f5, 0x24c9},
};
static const ItemBoxGfx kHudItemHookshot[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x24f5, 0x24f6, 0x24c0, 0x24f5},
};
static const ItemBoxGfx kHudItemBombs[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x2cb2, 0x2cb3, 0x2cc2, 0x6cc2},
};
static const ItemBoxGfx kHudItemMushroom[3] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x2444, 0x2445, 0x2446, 0x2447},
  {0x203b, 0x203c, 0x203d, 0x203e},
};
static const ItemBoxGfx kHudItemFireRod[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x24b0, 0x24b1, 0x24c0, 0x24c1},
};
static const ItemBoxGfx kHudItemIceRod[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x2cb0, 0x2cbe, 0x2cc0, 0x2cc1},
};
static const ItemBoxGfx kHudItemBombos[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x287d, 0x287e, 0xe87e, 0xe87d},
};
static const ItemBoxGfx kHudItemEther[2] = {
  {0x20f5, 0x20f5,  0x20f5,  0x20f5},
  {0x2876, 0x2877, 0xE877, 0xE876},
};
static const ItemBoxGfx kHudItemQuake[2] = {
  {0x20f5, 0x20f5,  0x20f5,  0x20f5},
  {0x2866, 0x2867, 0xE867, 0xE866},
};
static const ItemBoxGfx kHudItemTorch[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x24bc, 0x24bd, 0x24cc, 0x24cd},
};
static const ItemBoxGfx kHudItemHammer[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x20b6, 0x20b7, 0x20c6, 0x20c7},
};
static const ItemBoxGfx kHudItemFlute[4] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x20d0, 0x20d1, 0x20e0, 0x20e1},
  {0x2cd4, 0x2cd5, 0x2ce4, 0x2ce5},
  {0x2cd4, 0x2cd5, 0x2ce4, 0x2ce5},
};
static const ItemBoxGfx kHudItemBugNet[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x3c40, 0x3c41, 0x2842, 0x3c43},
};
static const ItemBoxGfx kHudItemBookMudora[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x3ca5, 0x3ca6, 0x3cd8, 0x3cd9},
};
static const ItemBoxGfx kHudItemCaneSomaria[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x24dc, 0x24dd, 0x24ec, 0x24ed},
};
static const ItemBoxGfx kHudItemCaneByrna[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x2cdc, 0x2cdd, 0x2cec, 0x2ced},
};
static const ItemBoxGfx kHudItemCape[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x24b4, 0x24b5, 0x24c4, 0x24c5},
};
static const ItemBoxGfx kHudItemMirror[4] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x28de, 0x28df, 0x28ee, 0x28ef},
  {0x2c62, 0x2c63, 0x2c72, 0x2c73},
  {0x2886, 0x2887, 0x2888, 0x2889},
};
static const ItemBoxGfx kHudItemGloves[3] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x2130, 0x2131, 0x2140, 0x2141},
  {0x28da, 0x28db, 0x28ea, 0x28eb},
};
static const ItemBoxGfx kHudItemBoots[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x3429, 0x342a, 0x342b, 0x342c},
};
static const ItemBoxGfx kHudItemFlippers[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x2c9a, 0x2c9b, 0x2c9d, 0x2c9e},
};
static const ItemBoxGfx kHudItemMoonPearl[2] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x2433, 0x2434, 0x2435, 0x2436},
};
static const ItemBoxGfx kHudItemEmpty[1] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
};
static const ItemBoxGfx kHudItemSword[5] = {
  {0x20f5, 0x20f5, 0x20f5, 0x20f5},
  {0x2c64, 0x2cce, 0x2c75, 0x3d25},
  {0x2c8a, 0x2c65, 0x2474, 0x3d26},
  {0x248a, 0x2465, 0x3c74, 0x2d48},
  {0x288a, 0x2865, 0x2c74, 0x2d39},
};
static const ItemBoxGfx kHudItemShield[4] = {
  {0x24f5, 0x24f5, 0x24f5, 0x24f5},
  {0x2cfd, 0x6cfd, 0x2cfe, 0x6cfe},
  {0x34ff, 0x74ff, 0x349f, 0x749f},
  {0x2880, 0x2881, 0x288d, 0x288e},
};
static const ItemBoxGfx kHudItemArmor[5] = {
  {0x3c68, 0x7c68, 0x3c78, 0x7c78},
  {0x2c68, 0x6c68, 0x2c78, 0x6c78},
  {0x2468, 0x6468, 0x2478, 0x6478},
};
static const uint16 kHudTilemap[165] = {
  0x207f, 0x207f, 0x2850, 0xa856, 0x2852, 0x285b, 0x285b, 0x285c, 0x207f, 0x3ca8, 0x207f, 0x207f, 0x2c88, 0x2c89, 0x207f, 0x20a7, 0x20a9, 0x207f, 0x2871, 0x207f, 0x207f, 0x207f, 0x288b, 0x288f, 0x24ab, 0x24ac, 0x688f, 0x688b, 0x207f, 0x207f, 0x207f, 0x207f,
  0x207f, 0x207f, 0x2854, 0x2871, 0x2858, 0x207f, 0x207f, 0x285d, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f,
  0x207f, 0x207f, 0x2854, 0x304e, 0x2858, 0x207f, 0x207f, 0x285d, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f,
  0x207f, 0x207f, 0x2854, 0x305e, 0x2859, 0xa85b, 0xa85b, 0xa85c, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f,
  0x207f, 0x207f, 0x2854, 0x305e, 0x6854, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f,
  0x207f, 0x207f, 0xa850, 0x2856, 0xe850,
};

static const ItemBoxGfx * const kHudItemBoxGfxPtrs[] = {
  kHudItemBow,
  kHudItemBoomerang,
  kHudItemHookshot,
  kHudItemBombs,
  kHudItemMushroom,
  kHudItemFireRod,
  kHudItemIceRod,
  kHudItemBombos,
  kHudItemEther,
  kHudItemQuake,
  kHudItemTorch,
  kHudItemHammer,
  kHudItemFlute,
  kHudItemBugNet,
  kHudItemBookMudora,
  kHudItemBottles,
  kHudItemCaneSomaria,
  kHudItemCaneByrna,
  kHudItemCape,
  kHudItemMirror,
  kHudItemGloves,
  kHudItemBoots,
  kHudItemFlippers,
  kHudItemMoonPearl,
  kHudItemEmpty,
  kHudItemSword,
  kHudItemShield,
  kHudItemArmor,
  kHudItemBottles,
  kHudItemBottles,
  kHudItemBottles,
  kHudItemBottles,

};
static const uint16 kUpdateMagicPowerTilemap[17][4] = {
  {0x3cf5, 0x3cf5, 0x3cf5, 0x3cf5},
  {0x3cf5, 0x3cf5, 0x3cf5, 0x3c5f},
  {0x3cf5, 0x3cf5, 0x3cf5, 0x3c4c},
  {0x3cf5, 0x3cf5, 0x3cf5, 0x3c4d},
  {0x3cf5, 0x3cf5, 0x3cf5, 0x3c4e},
  {0x3cf5, 0x3cf5, 0x3c5f, 0x3c5e},
  {0x3cf5, 0x3cf5, 0x3c4c, 0x3c5e},
  {0x3cf5, 0x3cf5, 0x3c4d, 0x3c5e},
  {0x3cf5, 0x3cf5, 0x3c4e, 0x3c5e},
  {0x3cf5, 0x3c5f, 0x3c5e, 0x3c5e},
  {0x3cf5, 0x3c4c, 0x3c5e, 0x3c5e},
  {0x3cf5, 0x3c4d, 0x3c5e, 0x3c5e},
  {0x3cf5, 0x3c4e, 0x3c5e, 0x3c5e},
  {0x3c5f, 0x3c5e, 0x3c5e, 0x3c5e},
  {0x3c4c, 0x3c5e, 0x3c5e, 0x3c5e},
  {0x3c4d, 0x3c5e, 0x3c5e, 0x3c5e},
  {0x3c4e, 0x3c5e, 0x3c5e, 0x3c5e},
};
static const uint16 kDungFloorIndicator_Gfx0[11] = { 0x2508, 0x2509, 0x2509, 0x250a, 0x250b, 0x250c, 0x250d, 0x251d, 0xe51c, 0x250e, 0x7f };
static const uint16 kDungFloorIndicator_Gfx1[11] = { 0x2518, 0x2519, 0xa509, 0x251a, 0x251b, 0x251c, 0x2518, 0xa51d, 0xe50c, 0xa50e, 0x7f };


void Hud_RefreshIcon() {
  Hud_SearchForEquippedItem();
  Hud_UpdateHud();
  Hud_Rebuild();
  overworld_map_state = 0;
}

uint8 CheckPalaceItemPosession() {
  switch (cur_palace_index_x2 >> 1) {
  case 2: return link_item_bow != 0;
  case 3: return link_item_gloves != 0;
  case 5: return link_item_hookshot != 0;
  case 6: return link_item_hammer != 0;
  case 7: return link_item_cane_somaria != 0;
  case 8: return link_item_fire_rod != 0;
  case 9: return link_armor != 0;
  case 10: return link_item_moon_pearl != 0;
  case 11: return link_item_gloves != 1;
  case 12: return link_shield_type == 3;
  case 13: return link_armor == 2;
  default:
    return 0;
  }
}

// Returns the zero based index of the currently selected hud item,
// or -1 if the item is item 0.
static int Hud_GetItemPosition(int item) {
  if (item <= 0)
    return -1;
  if (hud_inventory_order[0] != 0) {
    int i = 0;
    for (; i < kHudItemCount - 1 && hud_inventory_order[i] != item; i++) {}
    return i;
  } else {
    return item ? item - 1 : item;
  }
}

static void Hud_GotoPrevItem(uint8 *item, uint8 first_item_index) {
  if (hud_inventory_order[0] != 0) {
    int pos = Hud_GetItemPosition(*item);
    *item = (pos == 0 && !first_item_index) ? 0 :
        hud_inventory_order[(pos <= 0 ? kHudItemCount : pos) - 1];
  } else {
    *item = (*item > first_item_index) ? *item - 1 : kHudItemCount;
  }
}

static void Hud_GotoNextItem(uint8 *item, uint8 first_item_index) {
  if (hud_inventory_order[0] != 0) {
    int i = Hud_GetItemPosition(*item);
    *item = hud_inventory_order[((uint)i >= kHudItemCount - 1) ? 0 : i + 1];
  } else {
    *item = (*item < kHudItemCount) ? *item + 1 : first_item_index;
  }
}

void Hud_FloorIndicator() {  // 8afd0c
  uint16 a = hud_floor_changed_timer;
  if (a == 0) {
    Hud_RemoveSuperBombIndicator();
    return;
  }
  a += 1;
  if (a == 0xc0)
    a = 0;
  WORD(hud_floor_changed_timer) = a;

  hud_tile_indices_buffer[0xf2 / 2] = 0x251e;
  hud_tile_indices_buffer[0x134 / 2] = 0x251f;
  hud_tile_indices_buffer[0x132 / 2] = 0x2520;
  hud_tile_indices_buffer[0xf4 / 2] = 0x250f;

  int k = 0, j;

  if (!sign8(dung_cur_floor)) {
    if (!WORD(dung_cur_floor) && dungeon_room_index != 2 && sram_progress_indicator < 2)
      sound_effect_ambient = 3;
    j = dung_cur_floor;
  } else {
    sound_effect_ambient = 5;
    k++;
    j = dung_cur_floor ^ 0xff;
  }
  hud_tile_indices_buffer[k + 0xf2 / 2] = kDungFloorIndicator_Gfx0[j];
  hud_tile_indices_buffer[k + 0x132 / 2] = kDungFloorIndicator_Gfx1[j];
  flag_update_hud_in_nmi++;
}

void Hud_RemoveSuperBombIndicator() {  // 8afd90
  hud_tile_indices_buffer[0xf2 / 2] = 0x7f;
  hud_tile_indices_buffer[0x132 / 2] = 0x7f;
  hud_tile_indices_buffer[0xf4 / 2] = 0x7f;
  hud_tile_indices_buffer[0x134 / 2] = 0x7f;
}

void Hud_SuperBombIndicator() {  // 8afda8
  if (!super_bomb_indicator_unk1) {
    if (sign8(super_bomb_indicator_unk2))
      goto remove;
    super_bomb_indicator_unk2--;
    super_bomb_indicator_unk1 = 62;
  }
  super_bomb_indicator_unk1--;
  if (sign8(super_bomb_indicator_unk2)) {
remove:
    super_bomb_indicator_unk2 = 0xff;
    Hud_RemoveSuperBombIndicator();
    return;
  }

  int r = super_bomb_indicator_unk2 % 10;
  int q = super_bomb_indicator_unk2 / 10;

  int j = sign8(r - 1) ? 9 : r - 1;
  hud_tile_indices_buffer[0xf4 / 2] = kDungFloorIndicator_Gfx0[j];
  hud_tile_indices_buffer[0x134 / 2] = kDungFloorIndicator_Gfx1[j];

  j = sign8(q - 1) ? 10 : q - 1;
  hud_tile_indices_buffer[0xf2 / 2] = kDungFloorIndicator_Gfx0[j];
  hud_tile_indices_buffer[0x132 / 2] = kDungFloorIndicator_Gfx1[j];

}

void Hud_RefillLogic() {  // 8ddb92
  if (overworld_map_state)
    return;
  if (link_magic_filler) {
    if (link_magic_power >= 128) {
      link_magic_power = 128;
      link_magic_filler = 0;
    } else {
      link_magic_filler--;
      link_magic_power++;
      if ((frame_counter & 3) == 0 && sound_effect_1 == 0)
        sound_effect_1 = 45;
    }
  }

  uint16 a = link_rupees_actual;
  if (a != link_rupees_goal) {
    if (a >= link_rupees_goal) {
      if ((int16)--a < 0)
        link_rupees_goal = a = 0;
    } else {
      if (++a >= 1000)
        link_rupees_goal = a = 999;
    }
    link_rupees_actual = a;
    if (sound_effect_1 == 0) {
      if ((rupee_sfx_sound_delay++ & 7) == 0)
        sound_effect_1 = 41;
    } else {
      rupee_sfx_sound_delay = 0;
    }
  } else {
    rupee_sfx_sound_delay = 0;
  }

  if (link_bomb_filler) {
    link_bomb_filler--;
    if (link_item_bombs != kMaxBombsForLevel[link_bomb_upgrades])
      link_item_bombs++;
  }

  if (link_arrow_filler) {
    link_arrow_filler--;
    if (link_num_arrows != kMaxArrowsForLevel[link_arrow_upgrades])
      link_num_arrows++;
    if (link_item_bow && (link_item_bow & 1) == 1) {
      link_item_bow++;
      Hud_RefreshIcon();
    }
  }

  if (!flag_is_link_immobilized && !link_hearts_filler &&
      link_health_current < kMaxHealthForLevel[link_health_capacity >> 3]) {
    if (link_lowlife_countdown_timer_beep) {
      link_lowlife_countdown_timer_beep--;
    } else if (!sound_effect_1) {
      if (!(enhanced_features0 & kFeatures0_DisableLowHealthBeep))
        sound_effect_1 = 43;
      link_lowlife_countdown_timer_beep = 32 - 1;
    }
  }

  if (is_doing_heart_animation)
    goto doing_animation;
  if (link_hearts_filler) {
    if (link_health_current < link_health_capacity) {
      link_health_current += 8;
      if (link_health_current >= link_health_capacity)
        link_health_current = link_health_capacity;

      if (sound_effect_2 == 0)
        sound_effect_2 = 13;

      link_hearts_filler -= 8;
      is_doing_heart_animation++;
      animate_heart_refill_countdown = 7;

doing_animation:
      Hud_Update_IgnoreHealth();
      Hud_AnimateHeartRefill();
      flag_update_hud_in_nmi++;
      return;
    }
    link_health_current = link_health_capacity;
    link_hearts_filler = 0;
  }
  Hud_Update_IgnoreItemBox();
  flag_update_hud_in_nmi++;
}

void Hud_Module_Run() {  // 8ddd36
  byte_7E0206++;
  switch (overworld_map_state) {
  case 0: Hud_ClearTileMap(); break;
  case 1: Hud_Init(); break;
  case 2: Hud_BringMenuDown(); break;
  case 3: Hud_ChooseNextMode(); break;
  case 4: Hud_NormalMenu(); break;
  case 5: Hud_UpdateHud(); break;
  case 6: Hud_CloseMenu(); break;
  case 7: Hud_GotoBottleMenu(); break;
  case 8: Hud_InitBottleMenu(); break;
  case 9: Hud_ExpandBottleMenu(); break;
  case 10: Hud_BottleMenu(); break;
  case 11: Hud_EraseBottleMenu(); break;
  case 12: Hud_RestoreNormalMenu(); break;
  default:
    assert(0);
  }
}

void Hud_ClearTileMap() {  // 8ddd5a
  uint16 *target = (uint16 *)&g_ram[0x1000];
  for (int i = 0; i < 1024; i++)
    target[i] = 0x207f;
  sound_effect_2 = 17;
  nmi_subroutine_index = 1;
  BYTE(nmi_load_target_addr) = 0x22;
  overworld_map_state++;
}

bool Hud_HaveAnyItems() { // new
  for (int i = 0; i < 20; i++)
    if ((&link_item_bow)[i])
      return true;
  return false;
}

void Hud_Init() {  // 8dddab
  Hud_SearchForEquippedItem();
  Hud_DrawYButtonItems();
  Hud_DrawAbilityBox();
  Hud_DrawProgressIcons();
  Hud_DrawEquipmentBox();
  Hud_DrawSelectedYButtonItem();

  if (Hud_HaveAnyItems()) {   
    // This causes bottle flicker because it's not early enough
    int first_bottle = 0;
    while (first_bottle < 4 && link_bottle_info[first_bottle] == 0)
      first_bottle++;
    if (first_bottle == 4)
      link_item_bottle_index = 0;
    else if (link_item_bottle_index == 0)
      link_item_bottle_index = first_bottle + 1;

    if (hud_cur_item == kHudItem_BottleOld && !kNewStyleInventory) {
      timer_for_flashing_circle = 16;
      Hud_DrawBottleMenu();
    }
  }

  timer_for_flashing_circle = 16;
  nmi_subroutine_index = 1;
  BYTE(nmi_load_target_addr) = 0x22;
  overworld_map_state++;
}

void Hud_BringMenuDown() {  // 8dde59
  BG3VOFS_copy2 -= 8;
  if (BG3VOFS_copy2 == 0xff18)
    overworld_map_state++;
}

void Hud_ChooseNextMode() {  // 8dde6e
  if (Hud_HaveAnyItems()) {
    nmi_subroutine_index = 1;
    BYTE(nmi_load_target_addr) = 0x22;

    Hud_DrawSelectedYButtonItem();

    // Pick either the bottle state or normal one
    overworld_map_state = (hud_cur_item == kHudItem_BottleOld && !kNewStyleInventory) ? 10 : 4;
  } else {
    if (filtered_joypad_H)
      overworld_map_state = 5;
  }
}

static bool Hud_DoWeHaveThisItem(uint8 item) {  // 8ddeb0
  if (item == 0)
    return true;  // for the x item, 0 is valid

  if (item == kHudItem_Flute && kNewStyleInventory)
    return link_item_flute >= 2;

  if (item == kHudItem_Shovel && kNewStyleInventory)
    return link_item_flute >= 1;

  if (item >= kHudItem_Bottle1)
    return link_bottle_info[item - kHudItem_Bottle1] != 0;

  return (&link_item_bow)[item - 1] != 0;
}

static void Hud_EquipPrevItem(uint8 *item) {  // 8dded9
  do {
    Hud_GotoPrevItem(item, item == &hud_cur_item);
  } while (!Hud_DoWeHaveThisItem(*item));
}

static void Hud_EquipNextItem(uint8 *item) {  // 8ddee2
  do {
    Hud_GotoNextItem(item, item == &hud_cur_item);
  } while (!Hud_DoWeHaveThisItem(*item));
}

static void Hud_EquipItemAbove(uint8 *item) {  // 8ddeeb
  do {
    for(int i = 0; i < (kNewStyleInventory ? 6 : 5); i++)
      Hud_GotoPrevItem(item, 1);
  } while (!Hud_DoWeHaveThisItem(*item));
}

static void Hud_EquipItemBelow(uint8 *item) {  // 8ddf00
  int num = *item == 0 ? 1 : (kNewStyleInventory ? 6 : 5);
  do {
    for (int i = 0; i < num; i++)
      Hud_GotoNextItem(item, 1);
  } while (!Hud_DoWeHaveThisItem(*item));
}

void Hud_NormalMenu() {  // 8ddf15
  timer_for_flashing_circle++;
  if (!BYTE(joypad1H_last))
    BYTE(tmp1) = 0;

  if (filtered_joypad_H & 0x10) {  // start
    overworld_map_state = 5;
    sound_effect_2 = 18;
    return;
  }

  // Allow select to open the save/exit thing
  if (joypad1H_last & 0x20 && sram_progress_indicator) {  // select
    BG3VOFS_copy2 = -8;
    Hud_CloseMenu();
    DisplaySelectMenu();
    return;
  }

  if (joypad1H_last & 0x40 && !(joypad1L_last & 0x40) && (enhanced_features0 & kFeatures0_SwitchLR)) {
    if (filtered_joypad_H & 8) {
      Hud_ReorderItem(kNewStyleInventory ? -6 : -5);
    } else if (filtered_joypad_H & 4) {
      Hud_ReorderItem(kNewStyleInventory ? 6 : 5);
    } else if (filtered_joypad_H & 2) {
      Hud_ReorderItem(-1);
    } else if (filtered_joypad_H & 1) {
      Hud_ReorderItem(1);
    }
  } else if (!BYTE(tmp1)) {
    // If the x button is down, then move the blue circle
    uint8 *item_p = (joypad1L_last & 0x40 && (enhanced_features0 & kFeatures0_SwitchLR)) ? &hud_cur_item_x : &hud_cur_item;
    uint16 old_item = *item_p;
    if (filtered_joypad_H & 8) {
      Hud_EquipItemAbove(item_p);
    } else if (filtered_joypad_H & 4) {
      Hud_EquipItemBelow(item_p);
    } else if (filtered_joypad_H & 2) {
      Hud_EquipPrevItem(item_p);
    } else if (filtered_joypad_H & 1) {
      Hud_EquipNextItem(item_p);
    }
    BYTE(tmp1) = filtered_joypad_H;
    if (*item_p != old_item) {
      timer_for_flashing_circle = 16;
      sound_effect_2 = 32;
    }
  }
  Hud_DrawYButtonItems();
  Hud_DrawSelectedYButtonItem();
  if (hud_cur_item == kHudItem_BottleOld && !kNewStyleInventory)
    overworld_map_state = 7;

  nmi_subroutine_index = 1;
  BYTE(nmi_load_target_addr) = 0x22;
  //g_ram[0x15d0] = 0;
}

void Hud_UpdateHud() {  // 8ddfa9
  overworld_map_state++;
  Hud_UpdateOnly();
  Hud_UpdateEquippedItem();
}

uint8 Hud_LookupInventoryItem(uint8 item) {
  static const uint8 kHudItemToItemOrg[21] = {
    0,
    3,  2, 14, 1,  10,  5,
    6, 15, 16, 17,  9,  4,
    8,  7, 12, 11, 18, 13,
    19, 20,
  };

  static const uint8 kHudItemToItemNew[25] = {
    0,
    3,  2, 14, 1,  10,  5,
    6, 15, 16, 17,  9,  4,
    8,  7, 12, 21, 18, 13, // 8 is ocarina / shovel combined. moved shovel to 21.
    19, 20,11, 11, 11, 11, // 11 means bottle
  };
  return kNewStyleInventory ? kHudItemToItemNew[item] : kHudItemToItemOrg[item];
}

void Hud_UpdateEquippedItem() {  // 8ddfaf

  if (hud_cur_item >= kHudItem_Bottle1)
    link_item_bottle_index = hud_cur_item - kHudItem_Bottle1 + 1;

  assert(hud_cur_item < 25);
  current_item_y = Hud_LookupInventoryItem(hud_cur_item);
}

void Hud_CloseMenu() {  // 8ddfba
  BG3VOFS_copy2 += 8;
  if (BG3VOFS_copy2)
    return;
  Hud_Rebuild();
  overworld_map_state = 0;
  submodule_index = 0;
  main_module_index = saved_module_for_menu;
  if (submodule_index)
    Hud_RestoreTorchBackground();
  if (current_item_y != 5 && current_item_y != 6) {
    eq_debug_variable = 2;
    link_debug_value_1 = 0;
  } else {
    assert(!link_debug_value_1);
    eq_debug_variable = 0;
  }
}

void Hud_GotoBottleMenu() {  // 8ddffb
  bottle_menu_expand_row = 0;
  overworld_map_state++;
}

void Hud_InitBottleMenu() {  // 8de002
  int r = bottle_menu_expand_row;
  uint16 *dst = uvram_screen.row[0].col + (kNewStyleInventory ? 1 : 0);
  for (int i = 21; i <= 30; i++)
    dst[HUDXY(i, 11 + r)] = 0x207f;

  if (++bottle_menu_expand_row == 19) {
    overworld_map_state++;
    bottle_menu_expand_row = 17;
  }
  nmi_subroutine_index = 1;
  BYTE(nmi_load_target_addr) = 0x22;
}

void Hud_ExpandBottleMenu() {  // 8de08c
  static const uint16 kBottleMenuTop[] = { 0x28FB, 0x28F9, 0x28F9, 0x28F9, 0x28F9, 0x28F9, 0x28F9, 0x28F9, 0x28F9, 0x68FB };
  static const uint16 kBottleMenuTop2[] = { 0x28FC, 0x24F5, 0x24F5, 0x24F5, 0x24F5, 0x24F5, 0x24F5, 0x24F5, 0x24F5, 0x68FC };
  static const uint16 kBottleMenuBottom[] = { 0xA8FB, 0xA8F9, 0xA8F9, 0xA8F9, 0xA8F9, 0xA8F9, 0xA8F9, 0xA8F9, 0xA8F9, 0xE8FB };

  int r = bottle_menu_expand_row;
  uint16 *dst = uvram_screen.row[0].col + (kNewStyleInventory ? 1 : 0);
  memcpy(&dst[HUDXY(21, 11 + r)], kBottleMenuTop, sizeof(uint16) * 10);
  memcpy(&dst[HUDXY(21, 12 + r)], kBottleMenuTop2, sizeof(uint16) * 10);
  memcpy(&dst[HUDXY(21, 29)], kBottleMenuBottom, sizeof(uint16) * 10);

  if (sign8(--bottle_menu_expand_row))
    overworld_map_state++;
  nmi_subroutine_index = 1;
  BYTE(nmi_load_target_addr) = 0x22;
}

void Hud_BottleMenu() {  // 8de0df
  timer_for_flashing_circle++;
  if (filtered_joypad_H & 0x10) {
    sound_effect_2 = 18;
    overworld_map_state = 5;
  } else if (filtered_joypad_H & 3) {
    if (filtered_joypad_H & 2) {
      Hud_EquipPrevItem(&hud_cur_item);
    } else {
      Hud_EquipNextItem(&hud_cur_item);
    }
    timer_for_flashing_circle = 16;
    sound_effect_2 = 32;
    Hud_DrawYButtonItems();
    Hud_DrawSelectedYButtonItem();
    overworld_map_state++;
    bottle_menu_expand_row = 0;
    return;
  }
  Hud_DrawBottleMenu_Update();
  if (filtered_joypad_H & 12) {
    uint8 old_val = link_item_bottle_index - 1, val = old_val;

    if (filtered_joypad_H & 8) {
      do {
        val = (val - 1) & 3;
      } while (!link_bottle_info[val]);
    } else {
      do {
        val = (val + 1) & 3;
      } while (!link_bottle_info[val]);
    }
    if (old_val != val) {
      link_item_bottle_index = val + 1;
      timer_for_flashing_circle = 16;
      sound_effect_2 = 32;
    }
  }
}

static void Hud_DrawItem(uint16 *dst, const ItemBoxGfx *src) {  // new
  dst[0] = src->v[0];
  dst[1] = src->v[1];
  dst[32] = src->v[2];
  dst[33] = src->v[3];
}

static void Hud_DrawNxN(uint16 *dst, const uint16 *src, int w, int h) {  // new
  for (int y = 0; y < h; y++) {
    memcpy(dst, src, sizeof(uint16) * w);
    dst += 32, src += w;
  }
}

static void Hud_Copy2x2(uint16 *dst, uint16 *src) {  // new
  dst[0] = src[0];
  dst[1] = src[1];
  dst[32] = src[32];
  dst[33] = src[33];
}

static void Hud_DrawBox(uint16 *dst, int x1, int y1, int x2, int y2, uint8 palette) {  // new
  uint16 t;

  t = 0x20fb | palette << 10;
  dst[HUDXY(x1, y1)] = t;
  dst[HUDXY(x2, y1)] = t + 0x4000;
  dst[HUDXY(x1, y2)] = t + 0x8000;
  dst[HUDXY(x2, y2)] = t + 0xc000;

  t = 0x20fc | palette << 10;
  for (int y = y1 + 1; y < y2; y++) {
    dst[HUDXY(x1, y)] = t;
    dst[HUDXY(x2, y)] = t + 0x4000;
  }

  t = 0x20f9 | palette << 10;
  for (int x = x1 + 1; x < x2; x++) {
    dst[HUDXY(x, y1)] = t;
    dst[HUDXY(x, y2)] = t + 0x8000;
  }

  for (int y = y1 + 1; y < y2; y++) {
    for (int x = x1 + 1; x < x2; x++)
      dst[HUDXY(x, y)] = 0x24F5;
  }
}

static void Hud_DrawFlashingCircle(uint16 *p, uint8 palette) {  // new
  int pp = palette << 10;
  p[HUDXY(0, -1)] = pp | 0x2061;
  p[HUDXY(1, -1)] = pp | 0x2061 | 0x4000;
  p[HUDXY(-1, 0)] = pp | 0x2070;
  p[HUDXY(2, 0)] = pp | 0x2070 | 0x4000;
  p[HUDXY(-1, 1)] = pp | 0xa070;
  p[HUDXY(2, 1)] = pp | 0xa070 | 0x4000;
  p[HUDXY(0, 2)] = pp | 0xa061;
  p[HUDXY(1, 2)] = pp | 0xa061 | 0x4000;
  p[HUDXY(-1, -1)] = pp | 0x2060;
  p[HUDXY(2, -1)] = pp | 0x2060 | 0x4000;
  p[HUDXY(2, 2)] = pp | 0x2060 | 0xC000;
  p[HUDXY(-1, 2)] = pp | 0x2060 | 0x8000;
}

void Hud_DrawBottleMenu() {  // 8def67
  uint16 *dst = uvram_screen.row[0].col + (kNewStyleInventory ? 1 : 0);
  Hud_DrawBox(dst, 21, 11, 30, 29, 2);
  for (int i = 0; i < 4; i++)
    Hud_DrawItem(dst + HUDXY(25, 13 + i * 4), &kHudItemBottles[link_bottle_info[i]]);
  const ItemBoxGfx *p = &kHudItemBottles[link_bottle_info[link_item_bottle_index - 1]];
  Hud_DrawItem(uvram_screen.row[0].col + kHudItemInVramPtr[15], p);
  if (timer_for_flashing_circle & 0x10)
    Hud_DrawFlashingCircle(dst + HUDXY(25, 13 + (link_item_bottle_index - 1) * 4), 7);
}


void Hud_DrawBottleMenu_Update() {  // 8de17f
  Hud_DrawBottleMenu();
  Hud_DrawSelectedYButtonItem();

  nmi_subroutine_index = 1;
  BYTE(nmi_load_target_addr) = 0x22;
}

void Hud_EraseBottleMenu() {  // 8de2fd
  uint16 *dst = uvram_screen.row[0].col + (kNewStyleInventory ? 1 : 0);
  int r = bottle_menu_expand_row;
  for (int i = 0; i < 10; i++)
    dst[HUDXY(21 + i, 11 + r)] = 0x207f;
  if (++bottle_menu_expand_row == 19)
    overworld_map_state++;
  nmi_subroutine_index = 1;
  BYTE(nmi_load_target_addr) = 0x22;
}

void Hud_RestoreNormalMenu() {  // 8de346
  Hud_DrawProgressIcons();
  Hud_DrawEquipmentBox();
  overworld_map_state = 4;
  nmi_subroutine_index = 1;
  BYTE(nmi_load_target_addr) = 0x22;
}

void Hud_SearchForEquippedItem() {  // 8de399
  if (!Hud_HaveAnyItems()) {
    hud_cur_item = 0;
    hud_var1 = 0;
  } else {
    if (!hud_cur_item)
      hud_cur_item = 1;
    if (!Hud_DoWeHaveThisItem(hud_cur_item))
      Hud_EquipNextItem(&hud_cur_item);
  }
}

static const ItemBoxGfx *Hud_GetIconForItem(int i) {
  if (i <= 0)
    return kHudItemEmpty;

  if (i >= kHudItem_Bottle1)
    return &kHudItemBottles[link_bottle_info[i - kHudItem_Bottle1]];
  if (i == kHudItem_Shovel && kNewStyleInventory)
    return &kHudItemFlute[link_item_flute >= 1];

  uint8 item_val = (&link_item_bow)[i - 1];
  if (i == kHudItem_Bombs) // bombs
    item_val = (item_val != 0);
  else if (i == kHudItem_BottleOld && !kNewStyleInventory)
    item_val = link_item_bottle_index ? link_bottle_info[link_item_bottle_index - 1] : 0;
  return &kHudItemBoxGfxPtrs[i - 1][item_val];
}

void Hud_DrawYButtonItems() {  // 8de3d9
  uint16 *dst = uvram_screen.row[0].col;
  int x = kNewStyleInventory ? 0 : 1;

  bool is_x = (joypad1L_last & 0x40 && (enhanced_features0 & kFeatures0_SwitchLR));
  uint8 palette = is_x ? 3 : 7;
  Hud_DrawBox(dst, x, 5, 20 - x, 19, palette);

  if (!kNewStyleInventory) {
    if (palette == 3) {
      dst[HUDXY(2, 6)] = 0x2CF0;
      dst[HUDXY(2, 7)] = 0x2CF0 | 0x8000;
    } else {
      dst[HUDXY(2, 6)] = 0x3CF0;
      dst[HUDXY(2, 7)] = 0x3CF1;
    }
  }
  dst[HUDXY(x + 2, 5)] = 0x246E;
  dst[HUDXY(x + 3, 5)] = 0x246F;

  for (int i = 0; i < kHudItemCount; i++) {
    int j = hud_inventory_order[i];
    Hud_DrawItem(dst + kHudItemInVramPtr[i], Hud_GetIconForItem(j == 0 ? i + 1: j) );
  }
}

void Hud_DrawAbilityBox() {  // 8de6b6
  static const uint16 kHudAbilityText[80] = {
    0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2d5b, 0x2d58, 0x2d55, 0x2d63, 0x2d27,
    0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2d61, 0x2d54, 0x2d50, 0x2d53,
    0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2d63, 0x2d50, 0x2d5b, 0x2d5a,
    0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f, 0x207f,
    0x2cf5, 0x2cf5, 0x2c2e, 0x2cf5, 0x2cf5, 0x2d5f, 0x2d64, 0x2d5b, 0x2d5b, 0x2cf5,
    0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2d61, 0x2d64, 0x2d5d, 0x2cf5,
    0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2d62, 0x2d66, 0x2d58, 0x2d5c,
    0x2cf5, 0x2cf5, 0x2cf5, 0x207f, 0x207f, 0x2c01, 0x2c18, 0x2c28, 0x207f, 0x207f,
  };
  static const uint16 kHudGlovesText[20] = {
    0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2d5b, 0x2d58, 0x2d55, 0x2d63, 0x2d28,
    0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2cf5, 0x2d5b, 0x2d58, 0x2d55, 0x2d63, 0x2d29,
  };
  uint16 *dst = uvram_screen.row[0].col;
  int x = kNewStyleInventory ? 0 : 1;

  Hud_DrawBox(dst, x, 21, 19, 29, 1);

  uint8 flags = link_ability_flags;
  for (int i = 0; i < 2; i++, flags <<= 1) {
    for (int j = 0; j < 3; j++, flags <<= 1) {
      if (flags & 0x80)
        Hud_DrawNxN(dst + HUDXY(4 + j * 5, 22 + i * 2), kHudAbilityText + i * 40 + j * 10, 5, 2);
    }
  }
  // A
  if (!kNewStyleInventory) {
    dst[HUDXY(2, 22)] = 0xA4F0;
    dst[HUDXY(2, 23)] = 0x24F2;
  }
  // DO text
  dst[HUDXY(x + 2, 21)] = 0x2482;
  dst[HUDXY(x + 3, 21)] = 0x2483;

  Hud_DrawItem(dst + HUDXY(8, 27), &kHudItemGloves[link_item_gloves]);
  Hud_DrawItem(dst + HUDXY(4, 27), &kHudItemBoots[link_item_boots]);
  Hud_DrawItem(dst + HUDXY(12, 27), &kHudItemFlippers[link_item_flippers]);
  Hud_DrawItem(dst + HUDXY(16, 27), &kHudItemMoonPearl[link_item_moon_pearl]);
  if (link_item_gloves)
    Hud_DrawNxN(dst + HUDXY(4, 22), kHudGlovesText + (link_item_gloves != 1) * 10, 5, 2);
}

void Hud_DrawProgressIcons() {  // 8de9c8
  if (sram_progress_indicator < 3)
    Hud_DrawProgressIcons_Pendants();
  else
    Hud_DrawProgressIcons_Crystals();
}

void Hud_DrawProgressIcons_Pendants() {  // 8de9d3
  static const uint16 kProgressIconPendantsBg[90] = {
    0x28fb, 0x28f9, 0x28f9, 0x28f9, 0x28f9, 0x28f9, 0x28f9, 0x28f9, 0x28f9, 0x68fb,
    0x28fc, 0x2521, 0x2522, 0x2523, 0x2524, 0x253f, 0x24f5, 0x24f5, 0x24f5, 0x68fc,
    0x28fc, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x68fc,
    0x28fc, 0x24f5, 0x24f5, 0x24f5, 0x213b, 0x213c, 0x24f5, 0x24f5, 0x24f5, 0x68fc,
    0x28fc, 0x24f5, 0x24f5, 0x24f5, 0x213d, 0x213e, 0x24f5, 0x24f5, 0x24f5, 0x68fc,
    0x28fc, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x68fc,
    0x28fc, 0x24f5, 0x213b, 0x213c, 0x24f5, 0x24f5, 0x213b, 0x213c, 0x24f5, 0x68fc,
    0x28fc, 0x24f5, 0x213d, 0x213e, 0x24f5, 0x24f5, 0x213d, 0x213e, 0x24f5, 0x68fc,
    0xa8fb, 0xa8f9, 0xa8f9, 0xa8f9, 0xa8f9, 0xa8f9, 0xa8f9, 0xa8f9, 0xa8f9, 0xe8fb,
  };
  static const ItemBoxGfx kHudPendants0[2] = {
    {0x313b, 0x313c, 0x313d, 0x313e},
    {0x252b, 0x252c, 0x252d, 0x252e}
  };
  static const ItemBoxGfx kHudPendants1[2] = {
    {0x313b, 0x313c, 0x313d, 0x313e},
    {0x2d2b, 0x2d2c, 0x2d2d, 0x2d2e}
  };
  static const ItemBoxGfx kHudPendants2[2] = {
    {0x313b, 0x313c, 0x313d, 0x313e},
    {0x3d2b, 0x3d2c, 0x3d2d, 0x3d2e}
  };
  uint16 *dst = uvram_screen.row[0].col + (kNewStyleInventory ? HUDXY(22, 11) : HUDXY(21, 11));
  Hud_DrawNxN(dst, kProgressIconPendantsBg, 10, 9);
  Hud_DrawItem(dst + HUDXY(4, 3), &kHudPendants0[(link_which_pendants >> 0) & 1]);
  Hud_DrawItem(dst + HUDXY(2, 6), &kHudPendants1[(link_which_pendants >> 1) & 1]);
  Hud_DrawItem(dst + HUDXY(6, 6), &kHudPendants2[(link_which_pendants >> 2) & 1]);
}

void Hud_DrawProgressIcons_Crystals() {  // 8dea62
  static const uint16 kProgressIconCrystalsBg[90] = {
    0x28fb, 0x28f9, 0x28f9, 0x28f9, 0x28f9, 0x28f9, 0x28f9, 0x28f9, 0x28f9, 0x68fb,
    0x28fc, 0x252f, 0x2534, 0x2535, 0x2536, 0x2537, 0x24f5, 0x24f5, 0x24f5, 0x68fc,
    0x28fc, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x68fc,
    0x28fc, 0x24f5, 0x24f5, 0x3146, 0x3147, 0x3146, 0x3147, 0x24f5, 0x24f5, 0x68fc,
    0x28fc, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x68fc,
    0x28fc, 0x24f5, 0x3146, 0x3147, 0x3146, 0x3147, 0x3146, 0x3147, 0x24f5, 0x68fc,
    0x28fc, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x68fc,
    0x28fc, 0x24f5, 0x24f5, 0x3146, 0x3147, 0x3146, 0x3147, 0x24f5, 0x24f5, 0x68fc,
    0xa8fb, 0xa8f9, 0xa8f9, 0xa8f9, 0xa8f9, 0xa8f9, 0xa8f9, 0xa8f9, 0xa8f9, 0xe8fb,
  };

  uint16 *dst = uvram_screen.row[0].col + (kNewStyleInventory ? HUDXY(22, 11) : HUDXY(21, 11));
  Hud_DrawNxN(dst, kProgressIconCrystalsBg, 10, 9);

  uint8 f = link_has_crystals;
  if (f & 1) {
    dst[HUDXY(3, 3)] = 0x2D44;
    dst[HUDXY(4, 3)] = 0x2D45;
  }
  if (f & 2) {
    dst[HUDXY(5, 3)] = 0x2D44;
    dst[HUDXY(6, 3)] = 0x2D45;
  }
  if (f & 4) {
    dst[HUDXY(2, 5)] = 0x2D44;
    dst[HUDXY(3, 5)] = 0x2D45;
  }
  if (f & 8) {
    dst[HUDXY(4, 5)] = 0x2D44;
    dst[HUDXY(5, 5)] = 0x2D45;
  }
  if (f & 16) {
    dst[HUDXY(6, 5)] = 0x2D44;
    dst[HUDXY(7, 5)] = 0x2D45;
  }
  if (f & 32) {
    dst[HUDXY(3, 7)] = 0x2D44;
    dst[HUDXY(4, 7)] = 0x2D45;
  }
  if (f & 64) {
    dst[HUDXY(5, 7)] = 0x2D44;
    dst[HUDXY(6, 7)] = 0x2D45;
  }
}

void Hud_DrawSelectedYButtonItem() {  // 8deb3a
  static const uint16 kHudBottlesItemText[128] = {
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x255c, 0x2564, 0x2562, 0x2557, 0x2561, 0x255e, 0x255e, 0x255c,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2551, 0x255e, 0x2563, 0x2563, 0x255b, 0x2554, 0x24f5, 0x24f5,
    0x255b, 0x2558, 0x2555, 0x2554, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x255c, 0x2554, 0x2553, 0x2558, 0x2552, 0x2558, 0x255d, 0x2554,
    0x255c, 0x2550, 0x2556, 0x2558, 0x2552, 0x24f5, 0x24f5, 0x24f5, 0x255c, 0x2554, 0x2553, 0x2558, 0x2552, 0x2558, 0x255d, 0x2554,
    0x2552, 0x2564, 0x2561, 0x2554, 0x256a, 0x2550, 0x255b, 0x255b, 0x255c, 0x2554, 0x2553, 0x2558, 0x2552, 0x2558, 0x255d, 0x2554,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2555, 0x2550, 0x2554, 0x2561, 0x2558, 0x2554, 0x24f5, 0x24f5,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2551, 0x2554, 0x2554, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2556, 0x255e, 0x255e, 0x2553, 0x24f5, 0x2551, 0x2554, 0x2554,
  };
  static const uint16 kHudMushroomItemText[16] = {
    0x255c, 0x2550, 0x2556, 0x2558, 0x2552, 0x24f5, 0x24f5, 0x24f5,
    0x24f5, 0x255f, 0x255e, 0x2566, 0x2553, 0x2554, 0x2561, 0x24f5,
  };
  static const uint16 kHudFluteItemText[32] = {
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2555, 0x255b, 0x2564, 0x2563, 0x2554, 0x24f5, 0x24f5, 0x24f5,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2555, 0x255b, 0x2564, 0x2563, 0x2554, 0x24f5, 0x24f5, 0x24f5
  };
  static const uint16 kHudMirrorItemText[16] = {
    0x255c, 0x2550, 0x2556, 0x2558, 0x2552, 0x24f5, 0x24f5, 0x24f5,
    0x24f5, 0x24f5, 0x255c, 0x2558, 0x2561, 0x2561, 0x255e, 0x2561
  };
  static const uint16 kHudBowItemText[48] = {
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x256b, 0x256c, 0x256e, 0x256f, 0x257c, 0x257d, 0x257e, 0x257f,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x256b, 0x256c, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5,
    0x256b, 0x256c, 0x24f5, 0x256e, 0x256f, 0x24f5, 0x24f5, 0x24f5, 0x2578, 0x2579, 0x257a, 0x257b, 0x257c, 0x257d, 0x257e, 0x257f,
  };
  static const uint16 kHudItemText[320] = {
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x256b, 0x256c, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2570, 0x2571, 0x2572, 0x2573, 0x2574, 0x2575, 0x2576, 0x2577,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2557, 0x255e, 0x255e, 0x255a, 0x2562, 0x2557, 0x255e, 0x2563,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2551, 0x255e, 0x255c, 0x2551, 0x24f5, 0x24f5, 0x24f5, 0x24f5,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x255c, 0x2564, 0x2562, 0x2557, 0x2561, 0x255e, 0x255e, 0x255c,
    
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2555, 0x2558, 0x2561, 0x2554, 0x2561, 0x255e, 0x2553, 0x24f5,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2558, 0x2552, 0x2554, 0x2561, 0x255e, 0x2553, 0x24f5, 0x24f5,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2551, 0x255e, 0x255c, 0x2551, 0x255e, 0x2562, 0x24f5, 0x24f5,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2554, 0x2563, 0x2557, 0x2554, 0x2561, 0x24f5, 0x24f5, 0x24f5,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2560, 0x2564, 0x2550, 0x255a, 0x2554, 0x24f5, 0x24f5, 0x24f5,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x255b, 0x2550, 0x255c, 0x255f, 0x24f5, 0x24f5, 0x24f5, 0x24f5,
    0x255c, 0x2550, 0x2556, 0x2558, 0x2552, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2557, 0x2550, 0x255c, 0x255c, 0x2554, 0x2561,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2562, 0x2557, 0x255e, 0x2565, 0x2554, 0x255b, 0x24f5, 0x24f5,
    0x2400, 0x2401, 0x2402, 0x2403, 0x2404, 0x2405, 0x2406, 0x2407, 0x2408, 0x2409, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5,
    0x2551, 0x255e, 0x255e, 0x255a, 0x24f5, 0x255e, 0x2555, 0x24f5, 0x255c, 0x2564, 0x2553, 0x255e, 0x2561, 0x2550, 0x24f5, 0x24f5,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x255c, 0x2564, 0x2562, 0x2557, 0x2561, 0x255e, 0x255e, 0x255c,
    0x2552, 0x2550, 0x255d, 0x2554, 0x24f5, 0x255e, 0x2555, 0x24f5, 0x24f5, 0x2562, 0x255e, 0x255c, 0x2550, 0x2561, 0x2558, 0x2550,
    0x2552, 0x2550, 0x255d, 0x2554, 0x24f5, 0x255e, 0x2555, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2551, 0x2568, 0x2561, 0x255d, 0x2550,
    0x255c, 0x2550, 0x2556, 0x2558, 0x2552, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x2552, 0x2550, 0x255f, 0x2554, 0x24f5,
    0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5, 0x24f5,
  };

#define L(x) (x == ' ' ? 0x24f5 : 0x2550 + x - 'A')
  const uint16 kNotAssignedItemText[16] = {
    L('N'), L('O'), L('T'), L(' '), L(' '), L(' '), L(' '), L(' '),
    L('A'), L('S'), L('S'), L('I'), L('G'), L('N'), L('E'), L('D'),
  };
#undef L

  uint16 *dst_org = uvram_screen.row[0].col;
  uint16 *dst_box = dst_org + (kNewStyleInventory ? 1 : 0);

  bool is_x = (joypad1L_last & 0x40 && (enhanced_features0 & kFeatures0_SwitchLR));
  uint8 palette = is_x ? 3 : 7;
  Hud_DrawBox(dst_box, 21, 5, 21 + 9, 10, palette);

  // Display either the current item or the item assigned
  // to the x key.
  int item = is_x ? hud_cur_item_x : hud_cur_item;

  if (item != 0) {
    uint16 *p = dst_org + kHudItemInVramPtr[Hud_GetItemPosition(item)];
    Hud_Copy2x2(dst_box + HUDXY(25, 6), p);
    if (timer_for_flashing_circle & 0x10)
      Hud_DrawFlashingCircle(p, palette);
  }

  const uint16 *src_p;
  if (item == kHudItem_BottleOld && !kNewStyleInventory && link_item_bottle_index) {
    src_p = &kHudBottlesItemText[(link_bottle_info[link_item_bottle_index - 1] - 1) * 16];
  } else if (item == 5 && link_item_mushroom != 1) {
    src_p = &kHudMushroomItemText[(link_item_mushroom - 2) * 16];
  } else if (item == 20 && link_item_mirror != 1) {
    src_p = &kHudMirrorItemText[(link_item_mirror - 2) * 16];
  } else if (item == 13 && link_item_flute != 1) {
    src_p = &kHudFluteItemText[(link_item_flute - 2) * 16];
  } else if (item == 1 && link_item_bow != 1) {
    src_p = &kHudBowItemText[(link_item_bow - 2) * 16];
  } else if (item >= kHudItem_Bottle1 && item <= kHudItem_Bottle4) {
    src_p = &kHudBottlesItemText[(link_bottle_info[item - kHudItem_Bottle1] - 1) * 16];
  } else if (item == kHudItem_Shovel) {
    src_p = &kHudItemText[(13 - 1) * 16];
  } else if (item == 0) {
    src_p = is_x ? kNotAssignedItemText : &kHudItemText[(20 - 1) * 16];
  } else {
    src_p = &kHudItemText[(item - 1) * 16];
  }
  Hud_DrawNxN(dst_box + HUDXY(22, 8), src_p, 8, 2);
}

void Hud_DrawEquipmentBox() {  // 8ded29
  uint16 *dst = uvram_screen.row[0].col + (kNewStyleInventory ? 1 : 0);

  Hud_DrawBox(dst, 21, 21, 30, 29, 2);

  // Draw dotted lines
  for (int i = 0; i < 8; i++)
    dst[HUDXY(22 + i, 25)] = 0x28D7;

  static const uint16 kHudEquipmentDungeonItemText[16] = {
    0x2479, 0x247a, 0x247b, 0x247c, 0x248c, 0x24f5, 0x24f5, 0x24f5,
    0x2469, 0x246a, 0x246b, 0x246c, 0x246d, 0x246e, 0x246f, 0x24f5,
  };
  memcpy(dst + HUDXY(22, 22), &kHudEquipmentDungeonItemText[0], 8 * sizeof(uint16));
  memcpy(dst + HUDXY(22, 26), &kHudEquipmentDungeonItemText[8], 8 * sizeof(uint16));

  static const ItemBoxGfx kHudItemHeartPieces[4] = {
    {0x2484, 0x6484, 0x2485, 0x6485},
    {0x24ad, 0x6484, 0x2485, 0x6485},
    {0x24ad, 0x6484, 0x24ae, 0x6485},
    {0x24ad, 0x64ad, 0x24ae, 0x6485},
  };
  if (cur_palace_index_x2 == 0xff) {
    for (int i = 0; i < 8; i++)
      dst[HUDXY(22 + i, 26)] = 0x24F5;
    Hud_DrawItem(dst + HUDXY(25, 27), &kHudItemHeartPieces[link_heart_pieces]);
  }
  Hud_DrawItem(dst + HUDXY(22, 23), &kHudItemSword[link_sword_type == 0xff ? 0 : link_sword_type]);
  Hud_DrawItem(dst + HUDXY(25, 23), &kHudItemShield[link_shield_type]);
  Hud_DrawItem(dst + HUDXY(28, 23), &kHudItemArmor[link_armor]);

  static const ItemBoxGfx kHudItemPalaceItem[2] = {
    {0x28d6, 0x68d6, 0x28e6, 0x28e7},
    {0x354b, 0x354c, 0x354d, 0x354e},
  };
  static const ItemBoxGfx kHudItemDungeonMap[1] = {
    {0x28de, 0x28df, 0x28ee, 0x28ef},
  };
  static const ItemBoxGfx kHudItemDungeonCompass[1] = {
    {0x24bf, 0x64bf, 0x2ccf, 0x6ccf},
  };
  if (cur_palace_index_x2 != 0xff &&
     (link_bigkey << (cur_palace_index_x2 >> 1)) & 0x8000) {
    Hud_DrawItem(dst + HUDXY(28, 27), &kHudItemPalaceItem[CheckPalaceItemPosession()]);
  }
  if (cur_palace_index_x2 != 0xff &&
     (link_dungeon_map << (cur_palace_index_x2 >> 1)) & 0x8000) {
    Hud_DrawItem(dst + HUDXY(22, 27), &kHudItemDungeonMap[0]);
  }
  if (cur_palace_index_x2 != 0xff &&
     (link_compass << (cur_palace_index_x2 >> 1)) & 0x8000) {
    Hud_DrawItem(dst + HUDXY(25, 27), &kHudItemDungeonCompass[0]);
  }
}

void Hud_IntToDecimal(unsigned int number, uint8 *out) {  // 8df0f7
  out[0] = number / 100 + 0x90;
  out[1] = (number %= 100) / 10 + 0x90;
  out[2] = (number % 10) + 0x90;
}

bool Hud_RefillHealth() {  // 8df128
  if (link_health_current >= link_health_capacity) {
    link_health_current = link_health_capacity;
    link_hearts_filler = 0;
    return (is_doing_heart_animation == 0);
  }
  link_hearts_filler = 160;
  return false;
}

void Hud_AnimateHeartRefill() {  // 8df14f
  if (--animate_heart_refill_countdown)
    return;
  uint16 n = ((uint16)((link_health_current & ~7) - 1) >> 3) << 1;
  uint16 *p = hud_tile_indices_buffer + 0x34;
  if (n >= 20) {
    n -= 20;
    p += 0x20;
  }
  n &= 0xff;
  animate_heart_refill_countdown = 1;

  static const uint16 kAnimHeartPartial[4] = { 0x24A3, 0x24A4, 0x24A3, 0x24A0 };
  p[n >> 1] = kAnimHeartPartial[animate_heart_refill_countdown_subpos];

  animate_heart_refill_countdown_subpos = (animate_heart_refill_countdown_subpos + 1) & 3;
  if (!animate_heart_refill_countdown_subpos) {
    Hud_Rebuild();
    is_doing_heart_animation = 0;
  }
}

bool Hud_RefillMagicPower() {  // 8df1b3
  if (link_magic_power >= 0x80)
    return true;
  link_magic_filler = 0x80;
  return false;
}

void Hud_RestoreTorchBackground() {  // 8dfa33
  if (!link_item_torch || !dung_want_lights_out || hdr_dungeon_dark_with_lantern ||
      dung_num_lit_torches)
    return;
  hdr_dungeon_dark_with_lantern = 1;
  if (dung_hdr_bg2_properties != 2)
    TS_copy = 1;
}

void Hud_RebuildIndoor() {  // 8dfa60
  overworld_fixed_color_plusminus = 0;
  link_num_keys = 0xff;
  Hud_Rebuild();
}

void Hud_Rebuild() {  // 8dfa70
  memcpy(hud_tile_indices_buffer, kHudTilemap, 165 * sizeof(uint16));
  Hud_UpdateInternal();
  flag_update_hud_in_nmi++;
}

void Hud_UpdateOnly() {  // 8dfa85
  Hud_UpdateInternal();
  flag_update_hud_in_nmi++;
}

void Hud_UpdateItemBox() {  // 8dfafd
  if (link_item_bow) {
    if (link_item_bow >= 3) {
      hud_tile_indices_buffer[15] = 0x2486;
      hud_tile_indices_buffer[16] = 0x2487;
      link_item_bow = link_num_arrows ? 4 : 3;
    } else {
      link_item_bow = link_num_arrows ? 2 : 1;
    }
  }

  if (hud_cur_item)
    Hud_DrawItem(&hud_tile_indices_buffer[37], Hud_GetIconForItem(hud_cur_item));
}

void Hud_UpdateInternal() {  // 8dfb91
  Hud_UpdateItemBox();
  Hud_Update_IgnoreItemBox();
}

void Hud_Update_IgnoreItemBox() {  // 8dfb94
  static const uint16 kHudItemBoxTab1[] = { 0x24A2, 0x24A2, 0x24A2 };
  static const uint16 kHudItemBoxTab2[] = { 0x24A2, 0x24A1, 0x24A0 };

  Hud_UpdateHearts(&hud_tile_indices_buffer[0x34], kHudItemBoxTab1, link_health_capacity);
  Hud_UpdateHearts(&hud_tile_indices_buffer[0x34], kHudItemBoxTab2, (link_health_current + 3) & ~3);

  Hud_Update_IgnoreHealth();
}

void Hud_Update_IgnoreHealth() {  // 8dfc09
  if (link_magic_consumption >= 1) {
    hud_tile_indices_buffer[2] = 0x28F7;
    hud_tile_indices_buffer[3] = 0x2851;
    hud_tile_indices_buffer[4] = 0x28FA;
  }

  const uint16 *src = kUpdateMagicPowerTilemap[(link_magic_power + 7) >> 3];
  hud_tile_indices_buffer[0x23] = src[0];
  hud_tile_indices_buffer[0x43] = src[1];
  hud_tile_indices_buffer[0x63] = src[2];
  hud_tile_indices_buffer[0x83] = src[3];

  uint8 d[3];

  Hud_IntToDecimal(link_rupees_actual, d);


  const uint16 base_tiles[2] = {
    0x2400,
    (enhanced_features0 & kFeatures0_ShowMaxItemsInYellow) ? 0x3400 : 0x2400,
  };

  int base_tile = base_tiles[link_rupees_actual == 999];
  hud_tile_indices_buffer[0x28] = base_tile | d[0];
  hud_tile_indices_buffer[0x29] = base_tile | d[1];
  hud_tile_indices_buffer[0x2A] = base_tile | d[2];

  Hud_IntToDecimal(link_item_bombs, d);
  base_tile = base_tiles[link_item_bombs == kMaxBombsForLevel[link_bomb_upgrades]];

  hud_tile_indices_buffer[0x2C] = base_tile | d[1];
  hud_tile_indices_buffer[0x2D] = base_tile | d[2];

  Hud_IntToDecimal(link_num_arrows, d);
  base_tile = base_tiles[link_num_arrows == kMaxArrowsForLevel[link_arrow_upgrades]];
  hud_tile_indices_buffer[0x2F] = base_tile | d[1];
  hud_tile_indices_buffer[0x30] = base_tile | d[2];

  d[2] = 0x7f;
  if (link_num_keys != 0xff)
    Hud_IntToDecimal(link_num_keys, d);
  hud_tile_indices_buffer[0x32] = 0x2400 | d[2];
  if (hud_tile_indices_buffer[0x32] == 0x247f)
    hud_tile_indices_buffer[0x12] = hud_tile_indices_buffer[0x32];
}

void Hud_UpdateHearts(uint16 *dst, const uint16 *src, int n) {  // 8dfdab
  int x = 0;

  while (n > 0) {
    if (x >= 10) {
      dst += 0x20;
      x = 0;
    }
    dst[x] = src[n >= 5 ? 2 : 1];
    x++;
    n -= 8;
  }
}

const uint16 *Hud_GetItemBoxPtr(int item) {
  return kHudItemBoxGfxPtrs[item]->v;
}

void Hud_HandleItemSwitchInputs() {
  if (!(enhanced_features0 & kFeatures0_SwitchLR))
    return;
  if (filtered_joypad_L & (0x20 | 0x10)) {  // left/right shoulder
    int old_item = hud_cur_item;
    for (int i = 0; ; i++) {
      if (i >= kHudItemCount) {
        hud_cur_item = 0;
        break;
      }
      if (filtered_joypad_L & 0x20)
        Hud_GotoPrevItem(&hud_cur_item, 1);
      else
        Hud_GotoNextItem(&hud_cur_item, 1);
      if (Hud_DoWeHaveThisItem(hud_cur_item))
        break;
    }
    if (hud_cur_item != old_item) {
      sound_effect_2 = 32;
      Hud_UpdateEquippedItem();
      Hud_UpdateItemBox();
    }
  }
}

static void Hud_ReorderItem(int direction) {
  // Initialize inventory order on first use
  if (hud_inventory_order[0] == 0) {
    for (int i = 0; i < 24; i++)
      hud_inventory_order[i] = i + 1;
  }
  int old_pos = Hud_GetItemPosition(hud_cur_item), new_pos = old_pos + direction;
  if (new_pos < 0)
    new_pos += kHudItemCount;
  else if (new_pos >= kHudItemCount)
    new_pos -= kHudItemCount;
  uint8 t = hud_inventory_order[old_pos];
  hud_inventory_order[old_pos] = hud_inventory_order[new_pos];
  hud_inventory_order[new_pos] = t;
  Hud_DrawYButtonItems();
  sound_effect_2 = 32;
}