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feat: add container/bag Lua API for bag addon support

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Add GetContainerNumSlots(bag), GetContainerItemInfo(bag, slot),
GetContainerItemLink(bag, slot), and GetContainerNumFreeSlots(bag).
Container 0 = backpack (16 slots), containers 1-4 = equipped bags.
Returns item count, quality, and WoW-format item links with quality
colors. Enables bag management addons (Bagnon, OneBag, AdiBags).
This commit is contained in:
Kelsi 2026-03-20 17:14:07 -07:00
parent e6fbdfcc02
commit 0f480f5ada
1 changed files with 122 additions and 0 deletions
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122
src/addons/lua_engine.cpp
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@ -734,6 +734,123 @@ static int lua_GetUnitSpeed(lua_State* L) {
return 1;
}
// --- Container/Bag API ---
// WoW bags: container 0 = backpack (16 slots), containers 1-4 = equipped bags
static int lua_GetContainerNumSlots(lua_State* L) {
auto* gh = getGameHandler(L);
int container = static_cast<int>(luaL_checknumber(L, 1));
if (!gh) { lua_pushnumber(L, 0); return 1; }
const auto& inv = gh->getInventory();
if (container == 0) {
lua_pushnumber(L, inv.getBackpackSize());
} else if (container >= 1 && container <= 4) {
lua_pushnumber(L, inv.getBagSize(container - 1));
} else {
lua_pushnumber(L, 0);
}
return 1;
}
// GetContainerItemInfo(container, slot) → texture, count, locked, quality, readable, lootable, link
static int lua_GetContainerItemInfo(lua_State* L) {
auto* gh = getGameHandler(L);
int container = static_cast<int>(luaL_checknumber(L, 1));
int slot = static_cast<int>(luaL_checknumber(L, 2));
if (!gh) { lua_pushnil(L); return 1; }
const auto& inv = gh->getInventory();
const game::ItemSlot* itemSlot = nullptr;
if (container == 0 && slot >= 1 && slot <= inv.getBackpackSize()) {
itemSlot = &inv.getBackpackSlot(slot - 1); // WoW uses 1-based
} else if (container >= 1 && container <= 4) {
int bagIdx = container - 1;
int bagSize = inv.getBagSize(bagIdx);
if (slot >= 1 && slot <= bagSize)
itemSlot = &inv.getBagSlot(bagIdx, slot - 1);
}
if (!itemSlot || itemSlot->empty()) { lua_pushnil(L); return 1; }
// Get item info for quality/icon
const auto* info = gh->getItemInfo(itemSlot->item.itemId);
lua_pushnil(L); // texture (icon path — would need ItemDisplayInfo icon resolver)
lua_pushnumber(L, itemSlot->item.stackCount); // count
lua_pushboolean(L, 0); // locked
lua_pushnumber(L, info ? info->quality : 0); // quality
lua_pushboolean(L, 0); // readable
lua_pushboolean(L, 0); // lootable
// Build item link with quality color
std::string name = info ? info->name : ("Item #" + std::to_string(itemSlot->item.itemId));
uint32_t q = info ? info->quality : 0;
static const char* kQH[] = {"9d9d9d","ffffff","1eff00","0070dd","a335ee","ff8000","e6cc80","e6cc80"};
uint32_t qi = q < 8 ? q : 1u;
char link[256];
snprintf(link, sizeof(link), "|cff%s|Hitem:%u:0:0:0:0:0:0:0|h[%s]|h|r",
kQH[qi], itemSlot->item.itemId, name.c_str());
lua_pushstring(L, link); // link
return 7;
}
// GetContainerItemLink(container, slot) → item link string
static int lua_GetContainerItemLink(lua_State* L) {
auto* gh = getGameHandler(L);
int container = static_cast<int>(luaL_checknumber(L, 1));
int slot = static_cast<int>(luaL_checknumber(L, 2));
if (!gh) { lua_pushnil(L); return 1; }
const auto& inv = gh->getInventory();
const game::ItemSlot* itemSlot = nullptr;
if (container == 0 && slot >= 1 && slot <= inv.getBackpackSize()) {
itemSlot = &inv.getBackpackSlot(slot - 1);
} else if (container >= 1 && container <= 4) {
int bagIdx = container - 1;
int bagSize = inv.getBagSize(bagIdx);
if (slot >= 1 && slot <= bagSize)
itemSlot = &inv.getBagSlot(bagIdx, slot - 1);
}
if (!itemSlot || itemSlot->empty()) { lua_pushnil(L); return 1; }
const auto* info = gh->getItemInfo(itemSlot->item.itemId);
std::string name = info ? info->name : ("Item #" + std::to_string(itemSlot->item.itemId));
uint32_t q = info ? info->quality : 0;
char link[256];
static const char* kQH[] = {"9d9d9d","ffffff","1eff00","0070dd","a335ee","ff8000","e6cc80","e6cc80"};
uint32_t qi = q < 8 ? q : 1u;
snprintf(link, sizeof(link), "|cff%s|Hitem:%u:0:0:0:0:0:0:0|h[%s]|h|r",
kQH[qi], itemSlot->item.itemId, name.c_str());
lua_pushstring(L, link);
return 1;
}
// GetContainerNumFreeSlots(container) → numFreeSlots, bagType
static int lua_GetContainerNumFreeSlots(lua_State* L) {
auto* gh = getGameHandler(L);
int container = static_cast<int>(luaL_checknumber(L, 1));
if (!gh) { lua_pushnumber(L, 0); lua_pushnumber(L, 0); return 2; }
const auto& inv = gh->getInventory();
int freeSlots = 0;
int totalSlots = 0;
if (container == 0) {
totalSlots = inv.getBackpackSize();
for (int i = 0; i < totalSlots; ++i)
if (inv.getBackpackSlot(i).empty()) ++freeSlots;
} else if (container >= 1 && container <= 4) {
totalSlots = inv.getBagSize(container - 1);
for (int i = 0; i < totalSlots; ++i)
if (inv.getBagSlot(container - 1, i).empty()) ++freeSlots;
}
lua_pushnumber(L, freeSlots);
lua_pushnumber(L, 0); // bagType (0 = normal)
return 2;
}
// --- Additional WoW API ---
static int lua_UnitAffectingCombat(lua_State* L) {
@ -1231,6 +1348,11 @@ void LuaEngine::registerCoreAPI() {
{"UnitIsFriend", lua_UnitIsFriend},
{"UnitIsEnemy", lua_UnitIsEnemy},
{"UnitCreatureType", lua_UnitCreatureType},
// Container/bag API
{"GetContainerNumSlots", lua_GetContainerNumSlots},
{"GetContainerItemInfo", lua_GetContainerItemInfo},
{"GetContainerItemLink", lua_GetContainerItemLink},
{"GetContainerNumFreeSlots", lua_GetContainerNumFreeSlots},
// Utilities
{"strsplit", lua_strsplit},
{"strtrim", lua_strtrim},