src/game/SkillHandler.cpp

   1 /*
   2  * Copyright (C) 2005,2006 MaNGOS <http://www.mangosproject.org/>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #include "Common.h"
  20 #include "Database/DatabaseEnv.h"
  21 #include "Opcodes.h"
  22 #include "Log.h"
  23 #include "Player.h"
  24 #include "World.h"
  25 #include "WorldPacket.h"
  26 #include "WorldSession.h"
  27 #include "ObjectMgr.h"
  28 #include "UpdateMask.h"
  29 #include "SpellAuras.h"
  30
  31 void WorldSession::HandleLearnTalentOpcode( WorldPacket & recv_data )
  32 {
  33     WorldPacket data;
  34     uint32 talent_id, requested_rank;
  35     recv_data >> talent_id >> requested_rank;
  36
  37     uint32 CurTalentPoints =  GetPlayer()->GetUInt32Value(PLAYER_CHARACTER_POINTS1);
  38     if(CurTalentPoints == 0)
  39         return;
  40
  41     if (requested_rank > 4)
  42         return;
  43
  44     TalentEntry *talentInfo = sTalentStore.LookupEntry( talent_id );
  45
  46     if(!talentInfo)
  47         return;
  48
  49     TalentTabEntry *talentTabInfo = sTalentTabStore.LookupEntry( talentInfo->TalentTab );
  50
  51     if(!talentTabInfo)
  52         return;
  53
  54     Player * player = GetPlayer();
  55
  56     // prevent learn talent for different class (cheating)
  57     if( (player->getClassMask() & talentTabInfo->ClassMask) == 0 )
  58         return;
  59
  60     // prevent skip talent ranks (cheating)
  61     if(requested_rank > 0 && !player->HasSpell(talentInfo->RankID[requested_rank-1]))
  62         return;
  63
  64     // Check if it requires another talent
  65     if (talentInfo->DependsOn > 0)
  66     {
  67         TalentEntry *depTalentInfo = sTalentStore.LookupEntry(talentInfo->DependsOn);
  68         bool hasEnoughRank = false;
  69         for (int i = talentInfo->DependsOnRank; i <= 4; i++)
  70         {
  71             if (depTalentInfo->RankID[i] != 0)
  72                 if (player->HasSpell(depTalentInfo->RankID[i]))
  73                     hasEnoughRank = true;
  74         }
  75         if (!hasEnoughRank)
  76             return;
  77     }
  78
  79     // Find out how many points we have in this field
  80     uint32 spentPoints = 0;
  81
  82     uint32 tTab = talentInfo->TalentTab;
  83     if (talentInfo->Row > 0)
  84     {
  85         unsigned int numRows = sTalentStore.GetNumRows();
  86         for (unsigned int i = 0; i < numRows; i++)          // Loop through all talents.
  87         {
  88             // Someday, someone needs to revamp
  89             TalentEntry *tmpTalent = sTalentStore.data[i];
  90             if (tmpTalent)                                  // the way talents are tracked
  91             {
  92                 if (tmpTalent->TalentTab == tTab)
  93                 {
  94                     for (int j = 0; j <= 4; j++)
  95                     {
  96                         if (tmpTalent->RankID[j] != 0)
  97                         {
  98                             if (player->HasSpell(tmpTalent->RankID[j]))
  99                             {
 100                                 spentPoints += j + 1;
 101                             }
 102                         }
 103                     }
 104                 }
 105             }
 106         }
 107     }
 108
 109     uint32 spellid = talentInfo->RankID[requested_rank];
 110     if( spellid == 0 )
 111     {
 112         sLog.outDetail("Talent: %u Rank: %u = 0", talent_id, requested_rank);
 113     }
 114     else
 115     {
 116         if(spentPoints < (talentInfo->Row * 5))             // Min points spent
 117         {
 118             return;
 119         }
 120
 121         if(!(GetPlayer( )->HasSpell(spellid)))
 122         {
 123             if(!GetPlayer( )->addSpell((uint16)spellid,1))
 124                 return;
 125
 126             data.Initialize(SMSG_LEARNED_SPELL);
 127             sLog.outDetail("TalentID: %u Rank: %u Spell: %u\n", talent_id, requested_rank, spellid);
 128             data << spellid;
 129             GetPlayer( )->GetSession()->SendPacket(&data);
 130
 131             SpellEntry *spellInfo = sSpellStore.LookupEntry( spellid );
 132             assert(spellInfo);                              // checked in addSpell
 133
 134             // already apply in addSpell function
 135             //for(uint32 i = 0;i<3;i++)
 136             //{
 137             //    uint8 eff = spellInfo->Effect[i];
 138             //    if (eff>=TOTAL_SPELL_EFFECTS)
 139             //        continue;
 140
 141             //    // Duration 21 = permanent
 142             //    if ((eff == 6) && (spellInfo->DurationIndex == 21) && (spellInfo->rangeIndex == 1))
 143             //    {
 144             //        Aura *Aur = new Aura(spellInfo, i, GetPlayer());
 145             //        GetPlayer()->AddAura(Aur);
 146             //    }
 147             //}
 148
 149             if(requested_rank > 0 )
 150             {
 151                 uint32 respellid = talentInfo->RankID[requested_rank-1];
 152                 GetPlayer( )->removeSpell((uint16)respellid);
 153                 GetPlayer()->RemoveAurasDueToSpell(respellid);
 154             }
 155             GetPlayer()->SetUInt32Value(PLAYER_CHARACTER_POINTS1, CurTalentPoints - 1);
 156         }
 157     }
 158 }
 159
 160 void WorldSession::HandleTalentWipeOpcode( WorldPacket & recv_data )
 161 {
 162     sLog.outString("MSG_TALENT_WIPE_CONFIRM");
 163     uint64 guid;
 164     recv_data >> guid;
 165
 166     Creature *unit = ObjectAccessor::Instance().GetCreature(*_player, guid);
 167
 168     if (!unit)
 169     {
 170         sLog.outDebug( "WORLD: HandleTalentWipeOpcode - NO SUCH UNIT! (GUID: %u)", uint32(GUID_LOPART(guid)) );
 171         return;
 172     }
 173
 174     if( unit->IsHostileTo(_player))                         // do not talk with enemies
 175         return;
 176
 177     if( !unit->isTrainer())                                 // it's not trainer
 178         return;
 179
 180     if(!(_player->resetTalents()))
 181     {
 182         WorldPacket data;
 183         data.Initialize( MSG_TALENT_WIPE_CONFIRM );         //you have not any talent
 184         SendPacket( &data );
 185         return;
 186     }
 187
 188     // send spell 14867
 189     WorldPacket data;
 190     data.Initialize(SMSG_SPELL_START );
 191     data.append(_player->GetPackGUID());
 192     data.append(unit->GetPackGUID());
 193     data << uint16(14867) << uint16(0x00) << uint16(0x0F) << uint32(0x00)<< uint16(0x00);
 194     SendPacket( &data );
 195
 196     data.Initialize(SMSG_SPELL_GO);
 197     data.append(_player->GetPackGUID());
 198     data.append(unit->GetPackGUID());
 199     data << uint16(14867) << uint16(0x00) << uint8(0x0D) <<  uint8(0x01)<< uint8(0x01) << _player->GetGUID();
 200     data << uint32(0x00) << uint16(0x0200) << uint16(0x00);
 201     SendPacket( &data );
 202 }
 203
 204 void WorldSession::HandleUnlearnSkillOpcode(WorldPacket & recv_data)
 205 {
 206     uint32 skill_id;
 207     recv_data >> skill_id;
 208     GetPlayer()->SetSkill(skill_id, 0, 0);
 209 }