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https://github.com/OpenFusionProject/OpenFusion.git
synced 2024-11-22 05:20:05 +00:00
Improve sanity checks when opening crates and combining items
And ignore ITEM_MOVE packets while trading.
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@ -58,6 +58,11 @@ void ItemManager::itemMoveHandler(CNSocket* sock, CNPacketData* data) {
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return;
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// NOTE: sending a no-op, "move in-place" packet is not necessary
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if (plr->isTrading) {
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std::cout << "[WARN] Player attempted to move item while trading" << std::endl;
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return;
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}
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// get the fromItem
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sItemBase *fromItem;
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switch ((SlotType)itemmove->eFrom) {
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@ -804,24 +809,31 @@ void ItemManager::chestOpenHandler(CNSocket *sock, CNPacketData *data) {
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if (data->size != sizeof(sP_CL2FE_REQ_ITEM_CHEST_OPEN))
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return; // ignore the malformed packet
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sP_CL2FE_REQ_ITEM_CHEST_OPEN *chest = (sP_CL2FE_REQ_ITEM_CHEST_OPEN *)data->buf;
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sP_CL2FE_REQ_ITEM_CHEST_OPEN *pkt = (sP_CL2FE_REQ_ITEM_CHEST_OPEN *)data->buf;
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// sanity check
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if (chest->ChestItem.iType != 9) {
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if (pkt->eIL != 1 || pkt->iSlotNum < 0 || pkt->iSlotNum >= AINVEN_COUNT)
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return;
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Player *plr = PlayerManager::getPlayer(sock);
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sItemBase *chest = &plr->Inven[pkt->iSlotNum];
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// we could reject the packet if the client thinks the item is different, but eh
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if (chest->iType != 9) {
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std::cout << "[WARN] Player tried to open a crate with incorrect iType ?!" << std::endl;
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return;
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}
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#ifdef ACADEMY
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// check if chest isn't a nano capsule
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if (NanoCapsules.find(chest->ChestItem.iID) != NanoCapsules.end())
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return nanoCapsuleHandler(sock, chest);
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if (NanoCapsules.find(chest->iID) != NanoCapsules.end())
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return nanoCapsuleHandler(sock, pkt->iSlotNum, chest);
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#endif
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Player *plr = PlayerManager::getPlayer(sock);
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// chest opening acknowledgement packet
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INITSTRUCT(sP_FE2CL_REP_ITEM_CHEST_OPEN_SUCC, resp);
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resp.iSlotNum = chest->iSlotNum;
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resp.iSlotNum = pkt->iSlotNum;
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// item giving packet
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const size_t resplen = sizeof(sP_FE2CL_REP_REWARD_ITEM) + sizeof(sItemReward);
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@ -844,21 +856,21 @@ void ItemManager::chestOpenHandler(CNSocket *sock, CNPacketData *data) {
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reward->m_iBatteryN = plr->batteryN;
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reward->m_iBatteryW = plr->batteryW;
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item->iSlotNum = chest->iSlotNum;
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item->eIL = chest->eIL;
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item->iSlotNum = pkt->iSlotNum;
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item->eIL = 1;
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int itemSetId = -1, rarity = -1, ret = -1;
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bool failing = false;
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// find the crate
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if (Crates.find(chest->ChestItem.iID) == Crates.end()) {
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std::cout << "[WARN] Crate " << chest->ChestItem.iID << " not found!" << std::endl;
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if (Crates.find(chest->iID) == Crates.end()) {
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std::cout << "[WARN] Crate " << chest->iID << " not found!" << std::endl;
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failing = true;
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}
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Crate& crate = Crates[chest->ChestItem.iID];
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Crate& crate = Crates[chest->iID];
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if (!failing)
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itemSetId = getItemSetId(crate, chest->ChestItem.iID);
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itemSetId = getItemSetId(crate, chest->iID);
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if (itemSetId == -1)
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failing = true;
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@ -879,7 +891,7 @@ void ItemManager::chestOpenHandler(CNSocket *sock, CNPacketData *data) {
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item->sItem.iOpt = 1;
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}
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// update player
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plr->Inven[chest->iSlotNum] = item->sItem;
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plr->Inven[pkt->iSlotNum] = item->sItem;
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// transmit item
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sock->sendPacket((void*)respbuf, P_FE2CL_REP_REWARD_ITEM, resplen);
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@ -1064,13 +1076,13 @@ void ItemManager::updateEquips(CNSocket* sock, Player* plr) {
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}
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#ifdef ACADEMY
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void ItemManager::nanoCapsuleHandler(CNSocket* sock, sP_CL2FE_REQ_ITEM_CHEST_OPEN* chest) {
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void ItemManager::nanoCapsuleHandler(CNSocket* sock, int slot, sItemBase *chest) {
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Player* plr = PlayerManager::getPlayer(sock);
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int32_t nanoId = NanoCapsules[chest->ChestItem.iID];
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int32_t nanoId = NanoCapsules[chest->iID];
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// chest opening acknowledgement packet
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INITSTRUCT(sP_FE2CL_REP_ITEM_CHEST_OPEN_SUCC, resp);
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resp.iSlotNum = chest->iSlotNum;
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resp.iSlotNum = slot;
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// in order to remove capsule form inventory, we have to send item reward packet with empty item
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const size_t resplen = sizeof(sP_FE2CL_REP_REWARD_ITEM) + sizeof(sItemReward);
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@ -1093,11 +1105,11 @@ void ItemManager::nanoCapsuleHandler(CNSocket* sock, sP_CL2FE_REQ_ITEM_CHEST_OPE
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reward->m_iBatteryN = plr->batteryN;
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reward->m_iBatteryW = plr->batteryW;
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item->iSlotNum = chest->iSlotNum;
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item->eIL = chest->eIL;
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item->iSlotNum = slot;
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item->eIL = 1;
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// update player serverside
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plr->Inven[chest->iSlotNum] = item->sItem;
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plr->Inven[slot] = item->sItem;
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// transmit item
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sock->sendPacket((void*)respbuf, P_FE2CL_REP_REWARD_ITEM, resplen);
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@ -23,7 +23,11 @@ namespace ItemManager {
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};
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struct Item {
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bool tradeable, sellable;
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int buyPrice, sellPrice, stackSize, level, rarity, pointDamage, groupDamage, fireRate, defense, gender; // TODO: implement more as needed
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int buyPrice, sellPrice;
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int stackSize, level, rarity;
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int pointDamage, groupDamage, fireRate, defense, gender;
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int weaponType;
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// TODO: implement more as needed
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};
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// hopefully this is fine since it's never modified after load
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extern std::map<std::pair<int32_t, int32_t>, Item> ItemData; // <id, type> -> data
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@ -69,6 +73,6 @@ namespace ItemManager {
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#ifdef ACADEMY
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extern std::map<int32_t, int32_t> NanoCapsules; // crate id -> nano id
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void nanoCapsuleHandler(CNSocket* sock, sP_CL2FE_REQ_ITEM_CHEST_OPEN* chest);
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void nanoCapsuleHandler(CNSocket* sock, int slot, sItemBase *chest);
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#endif
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}
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@ -361,13 +361,16 @@ void NPCManager::npcCombineItems(CNSocket* sock, CNPacketData* data) {
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sP_CL2FE_REQ_PC_ITEM_COMBINATION* req = (sP_CL2FE_REQ_PC_ITEM_COMBINATION*)data->buf;
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Player* plr = PlayerManager::getPlayer(sock);
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if (req->iCostumeItemSlot < 0 || req->iCostumeItemSlot >= AINVEN_COUNT || req->iStatItemSlot < 0 || req->iStatItemSlot >= AINVEN_COUNT) { // sanity check 1
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INITSTRUCT(sP_FE2CL_REP_PC_ITEM_COMBINATION_FAIL, failResp);
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failResp.iCostumeItemSlot = req->iCostumeItemSlot;
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failResp.iStatItemSlot = req->iStatItemSlot;
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failResp.iErrorCode = 0;
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sock->sendPacket((void*)&failResp, P_FE2CL_REP_PC_ITEM_COMBINATION_FAIL, sizeof(sP_FE2CL_REP_PC_ITEM_COMBINATION_FAIL));
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// prepare fail packet
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INITSTRUCT(sP_FE2CL_REP_PC_ITEM_COMBINATION_FAIL, failResp);
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failResp.iCostumeItemSlot = req->iCostumeItemSlot;
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failResp.iStatItemSlot = req->iStatItemSlot;
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failResp.iErrorCode = 0;
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// sanity check slot indices
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if (req->iCostumeItemSlot < 0 || req->iCostumeItemSlot >= AINVEN_COUNT || req->iStatItemSlot < 0 || req->iStatItemSlot >= AINVEN_COUNT) {
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std::cout << "[WARN] Inventory slot(s) out of range (" << req->iStatItemSlot << " and " << req->iCostumeItemSlot << ")" << std::endl;
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sock->sendPacket((void*)&failResp, P_FE2CL_REP_PC_ITEM_COMBINATION_FAIL, sizeof(sP_FE2CL_REP_PC_ITEM_COMBINATION_FAIL));
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return;
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}
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@ -376,17 +379,22 @@ void NPCManager::npcCombineItems(CNSocket* sock, CNPacketData* data) {
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ItemManager::Item* itemStatsDat = ItemManager::getItemData(itemStats->iID, itemStats->iType);
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ItemManager::Item* itemLooksDat = ItemManager::getItemData(itemLooks->iID, itemLooks->iType);
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// sanity check item and combination entry existence
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if (itemStatsDat == nullptr || itemLooksDat == nullptr
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|| ItemManager::CrocPotTable.find(abs(itemStatsDat->level - itemLooksDat->level)) == ItemManager::CrocPotTable.end()) { // sanity check 2
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INITSTRUCT(sP_FE2CL_REP_PC_ITEM_COMBINATION_FAIL, failResp);
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failResp.iCostumeItemSlot = req->iCostumeItemSlot;
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failResp.iStatItemSlot = req->iStatItemSlot;
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failResp.iErrorCode = 0;
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|| ItemManager::CrocPotTable.find(abs(itemStatsDat->level - itemLooksDat->level)) == ItemManager::CrocPotTable.end()) {
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std::cout << "[WARN] Either item ids or croc pot value set not found" << std::endl;
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sock->sendPacket((void*)&failResp, P_FE2CL_REP_PC_ITEM_COMBINATION_FAIL, sizeof(sP_FE2CL_REP_PC_ITEM_COMBINATION_FAIL));
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return;
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}
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// sanity check matching item types
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if (itemStats->iType != itemLooks->iType
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|| (itemStats->iType == 0 && itemStatsDat->weaponType != itemLooksDat->weaponType)) {
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std::cout << "[WARN] Player attempted to combine mismatched items" << std::endl;
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sock->sendPacket((void*)&failResp, P_FE2CL_REP_PC_ITEM_COMBINATION_FAIL, sizeof(sP_FE2CL_REP_PC_ITEM_COMBINATION_FAIL));
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return;
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}
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CrocPotEntry* recipe = &ItemManager::CrocPotTable[abs(itemStatsDat->level - itemLooksDat->level)];
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int cost = itemStatsDat->buyPrice * recipe->multStats + itemLooksDat->buyPrice * recipe->multLooks;
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float successChance = recipe->base / 100.0f; // base success chance
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@ -160,6 +160,7 @@ void TableData::init() {
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itemData.fireRate = item["m_iDelayTime"];
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itemData.defense = item["m_iDefenseRat"];
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itemData.gender = item["m_iReqSex"];
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itemData.weaponType = item["m_iEquipType"];
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} else {
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itemData.rarity = 1;
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}
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