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/*
* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
*
* Copyright (C) 2008-2009 Trinity <http://www.trinitycore.org/>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include <functional>
#include "ItemEnchantmentMgr.h"
#include "Database/DatabaseEnv.h"
#include "Log.h"
#include "ObjectMgr.h"
#include "ProgressBar.h"
#include <list>
#include <vector>
#include "Util.h"
struct EnchStoreItem
{
uint32 ench;
float chance;
EnchStoreItem()
: ench(0), chance(0) {}
EnchStoreItem(uint32 _ench, float _chance)
: ench(_ench), chance(_chance) {}
};
typedef std::vector<EnchStoreItem> EnchStoreList;
typedef UNORDERED_MAP<uint32, EnchStoreList> EnchantmentStore;
static EnchantmentStore RandomItemEnch;
void LoadRandomEnchantmentsTable()
{
RandomItemEnch.clear(); // for reload case
EnchantmentStore::const_iterator tab;
uint32 entry, ench;
float chance;
uint32 count = 0;
QueryResult *result = WorldDatabase.Query("SELECT entry, ench, chance FROM item_enchantment_template");
if (result)
{
barGoLink bar(result->GetRowCount());
do
{
Field *fields = result->Fetch();
bar.step();
entry = fields[0].GetUInt32();
ench = fields[1].GetUInt32();
chance = fields[2].GetFloat();
if (chance > 0.000001f && chance <= 100.0f)
RandomItemEnch[entry].push_back( EnchStoreItem(ench, chance) );
++count;
} while (result->NextRow());
delete result;
sLog.outString();
sLog.outString( ">> Loaded %u Item Enchantment definitions", count );
}
else
{
sLog.outString();
sLog.outErrorDb( ">> Loaded 0 Item Enchantment definitions. DB table `item_enchantment_template` is empty.");
}
}
uint32 GetItemEnchantMod(uint32 entry)
{
if (!entry) return 0;
EnchantmentStore::const_iterator tab = RandomItemEnch.find(entry);
if (tab == RandomItemEnch.end())
{
sLog.outErrorDb("Item RandomProperty / RandomSuffix id #%u used in `item_template` but it doesn't have records in `item_enchantment_template` table.",entry);
return 0;
}
double dRoll = rand_chance();
float fCount = 0;
for(EnchStoreList::const_iterator ench_iter = tab->second.begin(); ench_iter != tab->second.end(); ++ench_iter)
{
fCount += ench_iter->chance;
if (fCount > dRoll) return ench_iter->ench;
}
//we could get here only if sum of all enchantment chances is lower than 100%
dRoll = (irand(0, (int)floor(fCount * 100) + 1)) / 100;
fCount = 0;
for(EnchStoreList::const_iterator ench_iter = tab->second.begin(); ench_iter != tab->second.end(); ++ench_iter)
{
fCount += ench_iter->chance;
if (fCount > dRoll) return ench_iter->ench;
}
return 0;
}
uint32 GenerateEnchSuffixFactor(uint32 item_id)
{
ItemPrototype const *itemProto = objmgr.GetItemPrototype(item_id);
if(!itemProto)
return 0;
if(!itemProto->RandomSuffix)
return 0;
RandomPropertiesPointsEntry const *randomProperty = sRandomPropertiesPointsStore.LookupEntry(itemProto->ItemLevel);
if(!randomProperty)
return 0;
uint32 suffixFactor;
switch(itemProto->InventoryType)
{
// Items of that type don`t have points
case INVTYPE_NON_EQUIP:
case INVTYPE_BAG:
case INVTYPE_TABARD:
case INVTYPE_AMMO:
case INVTYPE_QUIVER:
case INVTYPE_RELIC:
return 0;
// Select point coefficient
case INVTYPE_HEAD:
case INVTYPE_BODY:
case INVTYPE_CHEST:
case INVTYPE_LEGS:
case INVTYPE_2HWEAPON:
case INVTYPE_ROBE:
suffixFactor = 0;
break;
case INVTYPE_SHOULDERS:
case INVTYPE_WAIST:
case INVTYPE_FEET:
case INVTYPE_HANDS:
case INVTYPE_TRINKET:
suffixFactor = 1;
break;
case INVTYPE_NECK:
case INVTYPE_WRISTS:
case INVTYPE_FINGER:
case INVTYPE_SHIELD:
case INVTYPE_CLOAK:
case INVTYPE_HOLDABLE:
suffixFactor = 2;
break;
case INVTYPE_WEAPON:
case INVTYPE_WEAPONMAINHAND:
case INVTYPE_WEAPONOFFHAND:
suffixFactor = 3;
break;
case INVTYPE_RANGED:
case INVTYPE_THROWN:
case INVTYPE_RANGEDRIGHT:
suffixFactor = 4;
break;
default:
return 0;
}
// Select rare/epic modifier
switch (itemProto->Quality)
{
case ITEM_QUALITY_UNCOMMON:
return randomProperty->UncommonPropertiesPoints[suffixFactor];
case ITEM_QUALITY_RARE:
return randomProperty->RarePropertiesPoints[suffixFactor];
case ITEM_QUALITY_EPIC:
return randomProperty->EpicPropertiesPoints[suffixFactor];
case ITEM_QUALITY_LEGENDARY:
case ITEM_QUALITY_ARTIFACT:
return 0; // not have random properties
default:
break;
}
return 0;
}
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