feat(Core/CommandScript): New GM command "player learn" (#2487)

src/server/scripts/Commands/PlayerCommand.cpp

@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-AGPL3
+*/
+
+#include "Chat.h"
+#include "ScriptMgr.h"
+#include "Language.h"
+#include "Player.h"
+#include "PlayerCommand.h"
+
+bool PlayerCommand::Learn(ChatHandler* handler, Player* targetPlayer, uint32 spell, char const* all)
+{
+    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;
+    }
+
+    if (handler->GetSession())
+    {
+        SpellScriptsBounds bounds = sObjectMgr->GetSpellScriptsBounds(spell);
+        uint32 spellDifficultyId = sSpellMgr->GetSpellDifficultyId(spell);
+        if (handler->GetSession() && handler->GetSession()->GetSecurity() < SEC_ADMINISTRATOR && (bounds.first != bounds.second || spellDifficultyId))
+        {
+            handler->PSendSysMessage("Spell %u cannot be learnt using a command!", spell);
+            handler->SetSentErrorMessage(true);
+            return false;
+        }
+    }
+
+    bool allRanks = all ? (strncmp(all, "all", 3) == 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;
+}
+
+bool PlayerCommand::UnLearn(ChatHandler* handler, Player* target, uint32 spellId, char const* allStr)
+{
+    if (!spellId)
+        return false;
+
+    bool allRanks = allStr ? (strncmp(allStr, "all", 3) == 0) : false;
+
+    if (allRanks)
+        spellId = sSpellMgr->GetFirstSpellInChain (spellId);
+
+    if (target->HasSpell(spellId))
+        target->removeSpell(spellId, SPEC_MASK_ALL, false);
+    else
+        handler->SendSysMessage(LANG_FORGET_SPELL);
+
+    if (GetTalentSpellCost(spellId))
+        target->SendTalentsInfoData(false);
+
+    return true;
+}