自学教程：C++ GetTalentSpellCost函数代码示例

    static bool HandleLearnCommand(ChatHandler* handler, const char* args)    {        Player* targetPlayer = handler->getSelectedPlayer();        if(!targetPlayer)        {            handler->SendSysMessage(LANG_PLAYER_NOT_FOUND);            handler->SetSentErrorMessage(true);            return false;        }        // number or [name] Shift-click form |color|Hspell:spell_id|h[name]|h|r or Htalent form        uint32 spell = handler->extractSpellIdFromLink((char*)args);        if(!spell || !sSpellStore.LookupEntry(spell))            return false;        char const* allStr = strtok(NULL, " ");        bool allRanks = allStr ? (strncmp(allStr, "all", strlen(allStr)) == 0) : false;        SpellEntry const* spellInfo = sSpellStore.LookupEntry(spell);        if(!spellInfo || !SpellMgr::IsSpellValid(spellInfo, handler->GetSession()->GetPlayer()))        {            handler->PSendSysMessage(LANG_COMMAND_SPELL_BROKEN, spell);            handler->SetSentErrorMessage(true);            return false;        }        if(!allRanks && targetPlayer->HasSpell(spell))        {            if(targetPlayer == handler->GetSession()->GetPlayer())                handler->SendSysMessage(LANG_YOU_KNOWN_SPELL);            else                handler->PSendSysMessage(LANG_TARGET_KNOWN_SPELL, handler->GetNameLink(targetPlayer).c_str());            handler->SetSentErrorMessage(true);            return false;        }        if(allRanks)            targetPlayer->learnSpellHighRank(spell);        else            targetPlayer->learnSpell(spell, false);        uint32 first_spell = sSpellMgr->GetFirstSpellInChain(spell);        if(GetTalentSpellCost(first_spell))            targetPlayer->SendTalentsInfoData(false);        return true;    }

    static bool HandleListAurasCommand(ChatHandler* handler, char const* /*args*/)    {        Unit* unit = handler->getSelectedUnit();        if (!unit)        {            handler->SendSysMessage(LANG_SELECT_CHAR_OR_CREATURE);            handler->SetSentErrorMessage(true);            return false;        }        char const* talentStr = handler->GetTrinityString(LANG_TALENT);        char const* passiveStr = handler->GetTrinityString(LANG_PASSIVE);        Unit::AuraApplicationMap const& auras = unit->GetAppliedAuras();        handler->PSendSysMessage(LANG_COMMAND_TARGET_LISTAURAS, auras.size());        for (Unit::AuraApplicationMap::const_iterator itr = auras.begin(); itr != auras.end(); ++itr)        {            bool talent = GetTalentSpellCost(itr->second->GetBase()->GetId()) > 0;            AuraApplication const* aurApp = itr->second;            Aura const* aura = aurApp->GetBase();            char const* name = aura->GetSpellInfo()->SpellName[handler->GetSessionDbcLocale()];            std::ostringstream ss_name;            ss_name << "|cffffffff|Hspell:" << aura->GetId() << "|h[" << name << "]|h|r";            handler->PSendSysMessage(LANG_COMMAND_TARGET_AURADETAIL, aura->GetId(), (handler->GetSession() ? ss_name.str().c_str() : name),                aurApp->GetEffectMask(), aura->GetCharges(), aura->GetStackAmount(), aurApp->GetSlot(),                aura->GetDuration(), aura->GetMaxDuration(), (aura->IsPassive() ? passiveStr : ""),                (talent ? talentStr : ""), aura->GetCasterGUID().IsPlayer() ? "player" : "creature",                aura->GetCasterGUID().GetCounter());        }        for (uint16 i = 0; i < TOTAL_AURAS; ++i)        {            Unit::AuraEffectList const& auraList = unit->GetAuraEffectsByType(AuraType(i));            if (auraList.empty())                continue;            handler->PSendSysMessage(LANG_COMMAND_TARGET_LISTAURATYPE, auraList.size(), i);            for (Unit::AuraEffectList::const_iterator itr = auraList.begin(); itr != auraList.end(); ++itr)                handler->PSendSysMessage(LANG_COMMAND_TARGET_AURASIMPLE, (*itr)->GetId(), (*itr)->GetEffIndex(), (*itr)->GetAmount());        }        return true;    }

    static bool HandleLearnAllMySpellsCommand(ChatHandler* handler, char const* /*args*/)    {        ChrClassesEntry const* classEntry = sChrClassesStore.LookupEntry(handler->GetSession()->GetPlayer()->getClass());        if (!classEntry)            return true;        uint32 family = classEntry->spellfamily;        for (uint32 i = 0; i < sSkillLineAbilityStore.GetNumRows(); ++i)        {            SkillLineAbilityEntry const* entry = sSkillLineAbilityStore.LookupEntry(i);            if (!entry)                continue;            SpellInfo const* spellInfo = sSpellMgr->GetSpellInfo(entry->spellId);            if (!spellInfo)                continue;            // skip server-side/triggered spells            if (spellInfo->SpellLevel == 0)                continue;            // skip wrong class/race skills            if (!handler->GetSession()->GetPlayer()->IsSpellFitByClassAndRace(spellInfo->Id))                continue;            // skip other spell families            if (spellInfo->SpellFamilyName != family)                continue;            // skip spells with first rank learned as talent (and all talents then also)            uint32 firstRank = sSpellMgr->GetFirstSpellInChain(spellInfo->Id);            if (GetTalentSpellCost(firstRank) > 0)                continue;            // skip broken spells            if (!SpellMgr::IsSpellValid(spellInfo, handler->GetSession()->GetPlayer(), false))                continue;            handler->GetSession()->GetPlayer()->learnSpell(spellInfo->Id, false);        }        handler->SendSysMessage(LANG_COMMAND_LEARN_CLASS_SPELLS);        return true;    }

    static bool HandleUnLearnCommand(ChatHandler* handler, char const* args)    {        Player* target;        uint64 targetGuid;        std::string targetName;        if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid, &targetName))            return false;        if (!target)        {            handler->SetSentErrorMessage(true);            return false;        }        char const* spell = strtok(NULL, "");        if (!spell)            return false;        // number or [name] Shift-click form |color|Hspell:spell_id|h[name]|h|r or Htalent form        uint32 spellId = handler->extractSpellIdFromLink((char*)spell);        if (!spellId || !sSpellMgr->GetSpellInfo(spellId))            return false;        char const* allStr = strtok(NULL, " ");        bool allRanks = allStr ? (strncmp(allStr, "all", strlen(allStr)) == 0) : false;        if (allRanks)            spellId = sSpellMgr->GetFirstSpellInChain (spellId);        if (target->HasSpell(spellId))            target->removeSpell(spellId, false, !allRanks);        else            handler->SendSysMessage(LANG_FORGET_SPELL);        if (GetTalentSpellCost(spellId))            target->SendTalentsInfoData(false);        return true;    }

uint32 GetTalentSpellCost(uint32 spellId){    return GetTalentSpellCost(GetTalentSpellPos(spellId));}

    static bool HandleLearnCommand(ChatHandler* handler, char const* args)    {        Player* targetPlayer = handler->getSelectedPlayer();        if (!targetPlayer)        {            handler->SendSysMessage(LANG_PLAYER_NOT_FOUND);            handler->SetSentErrorMessage(true);            return false;        }        // number or [name] Shift-click form |color|Hspell:spell_id|h[name]|h|r or Htalent form        uint32 spell = handler->extractSpellIdFromLink((char*)args);        if (!spell)            return false;        SpellInfo const* spellInfo = sSpellMgr->GetSpellInfo(spell);        if (!spellInfo)        {            handler->PSendSysMessage(LANG_COMMAND_NOSPELLFOUND);            handler->SetSentErrorMessage(true);            return false;        }        if (!SpellMgr::IsSpellValid(spellInfo))        {            handler->PSendSysMessage(LANG_COMMAND_SPELL_BROKEN, spell);            handler->SetSentErrorMessage(true);            return false;        }        SpellScriptsBounds bounds = sObjectMgr->GetSpellScriptsBounds(spell);        uint32 spellDifficultyId = sSpellMgr->GetSpellDifficultyId(spell);        if (handler->GetSession()->GetSecurity() < SEC_CONSOLE && (bounds.first != bounds.second || spellDifficultyId))        {            handler->PSendSysMessage("Spell %u cannot be learnt using a command!", spell);            handler->SetSentErrorMessage(true);            return false;        }        char const* all = strtok(NULL, " ");        bool allRanks = all ? (strncmp(all, "all", strlen(all)) == 0) : false;        if (!allRanks && targetPlayer->HasSpell(spell))        {            if (targetPlayer == handler->GetSession()->GetPlayer())                handler->SendSysMessage(LANG_YOU_KNOWN_SPELL);            else                handler->PSendSysMessage(LANG_TARGET_KNOWN_SPELL, handler->GetNameLink(targetPlayer).c_str());            handler->SetSentErrorMessage(true);            return false;        }        if (allRanks)            targetPlayer->learnSpellHighRank(spell);        else            targetPlayer->learnSpell(spell);        uint32 firstSpell = sSpellMgr->GetFirstSpellInChain(spell);        if (GetTalentSpellCost(firstSpell))            targetPlayer->SendTalentsInfoData(false);        return true;    }

    static bool HandleLookupSpellIdCommand(ChatHandler* handler, char const* args)    {        if (!*args)            return false;        // can be NULL at console call        Player* target = handler->getSelectedPlayer();        uint32 id = atoi((char*)args);        if (SpellInfo const* spellInfo = sSpellMgr->GetSpellInfo(id))        {            int locale = handler->GetSessionDbcLocale();            std::string name = spellInfo->SpellName;            if (name.empty())            {                handler->SendSysMessage(LANG_COMMAND_NOSPELLFOUND);                return true;            }                bool known = target && target->HasSpell(id);                bool learn = (spellInfo->Effects[0].Effect == SPELL_EFFECT_LEARN_SPELL);                SpellInfo const* learnSpellInfo = sSpellMgr->GetSpellInfo(spellInfo->Effects[0].TriggerSpell);                uint32 talentCost = GetTalentSpellCost(id);                bool talent = (talentCost > 0);                bool passive = spellInfo->IsPassive();                bool active = target && target->HasAura(id);                // unit32 used to prevent interpreting uint8 as char at output                // find rank of learned spell for learning spell, or talent rank                uint32 rank = talentCost ? talentCost : learn && learnSpellInfo ? learnSpellInfo->GetRank() : spellInfo->GetRank();                // send spell in "id - [name, rank N] [talent] [passive] [learn] [known]" format                std::ostringstream ss;                if (handler->GetSession())                    ss << id << " - |cffffffff|Hspell:" << id << "|h[" << name;                else                    ss << id << " - " << name;                // include rank in link name                if (rank)                    ss << handler->GetTrinityString(LANG_SPELL_RANK) << rank;                if (handler->GetSession())                    ss << ' ' << localeNames[locale] << "]|h|r";                else                    ss << ' ' << localeNames[locale];                if (talent)                    ss << handler->GetTrinityString(LANG_TALENT);                if (passive)                    ss << handler->GetTrinityString(LANG_PASSIVE);                if (learn)                    ss << handler->GetTrinityString(LANG_LEARN);                if (known)                    ss << handler->GetTrinityString(LANG_KNOWN);                if (active)                    ss << handler->GetTrinityString(LANG_ACTIVE);                handler->SendSysMessage(ss.str().c_str());        }        else            handler->SendSysMessage(LANG_COMMAND_NOSPELLFOUND);        return true;    }

    static bool HandleLookupSpellCommand(ChatHandler* handler, char const* args)    {        if (!*args)            return false;        // can be NULL at console call        Player* target = handler->getSelectedPlayer();        std::string namePart = args;        std::wstring wNamePart;        if (!Utf8toWStr(namePart, wNamePart))            return false;        // converting string that we try to find to lower case        wstrToLower(wNamePart);        bool found = false;        uint32 count = 0;        uint32 maxResults = sWorld->getIntConfig(CONFIG_MAX_RESULTS_LOOKUP_COMMANDS);        // Search in Spell.dbc        for (uint32 id = 0; id < sSpellMgr->GetSpellInfoStoreSize(); id++)        {            SpellInfo const* spellInfo = sSpellMgr->GetSpellInfo(id);            if (spellInfo)            {                std::string name = spellInfo->SpellName;                if (name.empty())                    continue;                if (!Utf8FitTo(name, wNamePart))                    continue;                if (maxResults && count++ == maxResults)                {                    handler->PSendSysMessage(LANG_COMMAND_LOOKUP_MAX_RESULTS, maxResults);                    return true;                }                bool known = target && target->HasSpell(id);                bool learn = (spellInfo->Effects[0].Effect == SPELL_EFFECT_LEARN_SPELL);                SpellInfo const* learnSpellInfo = sSpellMgr->GetSpellInfo(spellInfo->Effects[0].TriggerSpell);                uint32 talentCost = GetTalentSpellCost(id);                bool talent = (talentCost > 0);                bool passive = spellInfo->IsPassive();                bool active = target && target->HasAura(id);                // unit32 used to prevent interpreting uint8 as char at output                // find rank of learned spell for learning spell, or talent rank                uint32 rank = talentCost ? talentCost : learn && learnSpellInfo ? learnSpellInfo->GetRank() : spellInfo->GetRank();                // send spell in "id - [name, rank N] [talent] [passive] [learn] [known]" format                std::ostringstream ss;                if (handler->GetSession())                    ss << id << " - |cffffffff|Hspell:" << id << "|h[" << name;                else                    ss << id << " - " << name;                // include rank in link name                if (rank)                    ss << handler->GetTrinityString(LANG_SPELL_RANK) << rank;                if (handler->GetSession())                    ss << "]|h|r";                if (talent)                    ss << handler->GetTrinityString(LANG_TALENT);                if (passive)                    ss << handler->GetTrinityString(LANG_PASSIVE);                if (learn)                    ss << handler->GetTrinityString(LANG_LEARN);                if (known)                    ss << handler->GetTrinityString(LANG_KNOWN);                if (active)                    ss << handler->GetTrinityString(LANG_ACTIVE);                handler->SendSysMessage(ss.str().c_str());                if (!found)                    found = true;            }        }        if (!found)            handler->SendSysMessage(LANG_COMMAND_NOSPELLFOUND);        return true;    }