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/*
* This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "LanguageMgr.h"
#include "DB2Stores.h"
#include "Log.h"
#include "SpellInfo.h"
#include "SpellMgr.h"
#include "Timer.h"
#include <sstream>
LanguageMgr::LanguageMgr() : _langsMap(), _wordsMap() { }
LanguageMgr::~LanguageMgr()
{
_langsMap.clear();
_wordsMap.clear();
}
LanguageMgr* LanguageMgr::instance()
{
static LanguageMgr instance;
return &instance;
}
void LanguageMgr::LoadSpellEffectLanguage(SpellEffectEntry const* spellEffect)
{
ASSERT(spellEffect && spellEffect->Effect == SPELL_EFFECT_LANGUAGE);
uint32 languageId = uint32(spellEffect->EffectMiscValue[0]);
auto iter = _langsMap.find(languageId);
if (iter == _langsMap.end())
{
TC_LOG_WARN("languages.spell", "LoadSpellEffectLanguage called on Spell %u with language %u which does not exist in Language.db2!",
spellEffect->SpellID, languageId);
return;
}
LanguageDesc& desc = iter->second;
desc.SpellId = spellEffect->SpellID;
}
uint32 LanguageMgr::GetSpellLanguage(uint32 spellId) const
{
if (SpellInfo const* spellInfo = sSpellMgr->GetSpellInfo(spellId, DIFFICULTY_NONE))
{
SpellEffectInfoVector const& effects = spellInfo->GetEffects();
if (effects.size() != 1 || effects[0]->Effect != SPELL_EFFECT_LANGUAGE)
TC_LOG_WARN("languages.spell", "Invalid language spell %u. Expected 1 effect with SPELL_EFFECT_LANGUAGE", spellId);
else
return effects[0]->MiscValue;
}
return 0;
}
bool LanguageMgr::IsRelevantLanguageSkill(SkillLineEntry const* skillLineEntry) const
{
if (!skillLineEntry)
return false;
SkillRaceClassInfoEntry const* entry = sDB2Manager.GetAvailableSkillRaceClassInfo(skillLineEntry->ID);
return entry != nullptr;
}
void LanguageMgr::LoadLanguages()
{
uint32 oldMSTime = getMSTime();
// Load languages from Languages.db2. Just the id, we don't need the name
for (LanguagesEntry const* langEntry : sLanguagesStore)
_langsMap.emplace(langEntry->ID, LanguageDesc());
// Add the languages used in code in case they don't exist
_langsMap.emplace(LANG_UNIVERSAL, LanguageDesc());
_langsMap.emplace(LANG_ADDON, LanguageDesc());
_langsMap.emplace(LANG_ADDON_LOGGED, LanguageDesc());
// Log load time
TC_LOG_INFO("server.loading", ">> Loaded %u languages in %u ms", uint32(_langsMap.size()), GetMSTimeDiffToNow(oldMSTime));
}
void LanguageMgr::LoadLanguagesSkills()
{
uint32 oldMSTime = getMSTime();
uint32 count = 0;
for (SkillLineEntry const* skillLineEntry : sSkillLineStore)
{
if (skillLineEntry->CategoryID != SKILL_CATEGORY_LANGUAGES)
continue;
if (!IsRelevantLanguageSkill(skillLineEntry))
continue;
std::vector<SkillLineAbilityEntry const*> const* skills = sDB2Manager.GetSkillLineAbilitiesBySkill(skillLineEntry->ID);
// We're expecting only 1 skill
if (skills->size() != 1)
TC_LOG_WARN("server.loading", "Found language skill line with %u spells. Expected 1. Will use 1st if available", uint32(skills->size()));
if (SkillLineAbilityEntry const* ability = skills->empty() ? nullptr : skills->at(0))
{
if (uint32 languageId = GetSpellLanguage(ability->Spell))
{
auto iter = _langsMap.find(languageId);
if (iter == _langsMap.cend())
TC_LOG_WARN("server.loading", "Spell %u has language %u, which doesn't exist in Languages.db2", ability->Spell, languageId);
else
{
iter->second.SpellId = ability->Spell;
iter->second.SkillId = skillLineEntry->ID;
++count;
}
}
}
}
// Languages that don't have skills will be added in SpellMgr::LoadSpellInfoStore() (e.g. LANG_ZOMBIE, LANG_SHATH_YAR)
// Log load time
TC_LOG_INFO("server.loading", ">> Loaded %u languages skills in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
}
void LanguageMgr::LoadLanguagesWords()
{
uint32 oldMSTime = getMSTime();
uint32 wordsNum = 0;
for (LanguageWordsEntry const* wordEntry : sLanguageWordsStore)
{
uint8 length = std::min(18U, uint32(strlen(wordEntry->Word)));
WordKey key = WordKey(wordEntry->LanguageID, length);
auto result = _wordsMap.insert(std::make_pair(key, WordList()));
result.first->second.push_back(wordEntry->Word);
++wordsNum;
}
// log load time
TC_LOG_INFO("server.loading", ">> Loaded %u word groups from %u words in %u ms", uint32(_wordsMap.size()), wordsNum, GetMSTimeDiffToNow(oldMSTime));
}
LanguageMgr::WordList const* LanguageMgr::FindWordGroup(uint32 language, uint32 wordLen) const
{
WordsMap::const_iterator iter = _wordsMap.find(WordKey(language, wordLen));
if (iter != _wordsMap.end())
return &(iter->second);
return nullptr;
}
std::string LanguageMgr::Translate(std::string const& msg, uint32 sourcePlayerLanguage) const
{
std::stringstream result;
Tokenizer tokens(msg, ' ');
bool first = true;
for (char const* str : tokens)
{
const char* nextPart = str;
uint32 wordLen = std::min(18U, (uint32)strlen(str));
LanguageMgr::WordList const* wordGroup = FindWordGroup(sourcePlayerLanguage, wordLen);
if (!wordGroup)
nextPart = "";
else
{
uint32 wordHash = SStrHash(str, true);
uint8 idxInsideGroup = wordHash % wordGroup->size();
nextPart = wordGroup->at(idxInsideGroup);
}
if (first)
first = false;
else
result << " ";
result << nextPart;
}
return result.str();
}
static char upper_backslash(char c) { return c == '/' ? '\\' : toupper(c); }
static uint32 const s_hashtable[16] = {
0x486E26EE, 0xDCAA16B3, 0xE1918EEF, 0x202DAFDB,
0x341C7DC7, 0x1C365303, 0x40EF2D37, 0x65FD5E49,
0xD6057177, 0x904ECE93, 0x1C38024F, 0x98FD323B,
0xE3061AE7, 0xA39B0FA1, 0x9797F25F, 0xE4444563,
};
uint32 LanguageMgr::SStrHash(char const* string, bool caseInsensitive, uint32 seed) const
{
ASSERT(string);
uint32 shift = 0xEEEEEEEE;
while (*string) {
char c = *string++;
if (caseInsensitive)
c = upper_backslash(c);
seed = (s_hashtable[c >> 4] - s_hashtable[c & 0xF]) ^ (shift + seed);
shift = c + seed + 33 * shift + 3;
}
return seed ? seed : 1;
}
bool LanguageMgr::IsLanguageExist(uint32 languageId) const
{
auto iter = _langsMap.find(languageId);
return iter != _langsMap.cend();
}
LanguageDesc const* LanguageMgr::GetLanguageDescById(uint32 languageId) const
{
auto iter = _langsMap.find(languageId);
if (iter == _langsMap.cend())
return nullptr;
return &(iter->second);
}
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