[12048] Implement SummonPossessed

Version slightly derived from GriffonHeart's version.

src/game/SharedDefines.h

@@ -281,7 +281,7 @@ enum SpellAttributesEx
     SPELL_ATTR_EX_NO_THREAT                    = 0x00000400,            // 10 no generates threat on cast 100%
     SPELL_ATTR_EX_UNK11                        = 0x00000800,            // 11
     SPELL_ATTR_EX_UNK12                        = 0x00001000,            // 12
-    SPELL_ATTR_EX_UNK13                        = 0x00002000,            // 13
+    SPELL_ATTR_EX_FARSIGHT                     = 0x00002000,            // 13 related to farsight
     SPELL_ATTR_EX_UNK14                        = 0x00004000,            // 14
     SPELL_ATTR_EX_DISPEL_AURAS_ON_IMMUNITY     = 0x00008000,            // 15 remove auras on immunity
     SPELL_ATTR_EX_UNAFFECTED_BY_SCHOOL_IMMUNE  = 0x00010000,            // 16 unaffected by school immunity

src/game/Spell.h

@@ -664,6 +664,7 @@ class Spell
         bool DoSummonWild(CreatureSummonPositions& list, SummonPropertiesEntry const* prop, SpellEffectIndex effIdx, uint32 level);
         bool DoSummonCritter(CreatureSummonPositions& list, SummonPropertiesEntry const* prop, SpellEffectIndex effIdx, uint32 level);
         bool DoSummonGuardian(CreatureSummonPositions& list, SummonPropertiesEntry const* prop, SpellEffectIndex effIdx, uint32 level);
+        bool DoSummonPossessed(CreatureSummonPositions& list, SummonPropertiesEntry const* prop, SpellEffectIndex effIdx, uint32 level);
 };
 
 enum ReplenishType

src/game/SpellEffects.cpp

@@ -4911,9 +4911,9 @@ void Spell::EffectSummonType(SpellEffectIndex eff_idx)
         }
         case SUMMON_PROP_GROUP_CONTROLLABLE:
         {
-            // no type here
-            // maybe wrong - but thats the handler currently used for those
-            summonResult = DoSummonGuardian(summonPositions, summon_prop, eff_idx, level);
+            // TODO: Fix spell 46619
+            if (m_spellInfo->Id != 46619)
+                summonResult = DoSummonPossessed(summonPositions, summon_prop, eff_idx, level);
             break;
         }
         case SUMMON_PROP_GROUP_VEHICLE:
@@ -5208,6 +5208,64 @@ bool Spell::DoSummonTotem(SpellEffectIndex eff_idx, uint8 slot_dbc)
     return false;
 }
 
+bool Spell::DoSummonPossessed(CreatureSummonPositions& list, SummonPropertiesEntry const* prop, SpellEffectIndex effIdx, uint32 level)
+{
+    MANGOS_ASSERT(!list.empty() && prop);
+
+    uint32 creatureEntry = m_spellInfo->EffectMiscValue[effIdx];
+    CreatureInfo const* cInfo = sCreatureStorage.LookupEntry<CreatureInfo>(creatureEntry);
+    if (!cInfo)
+    {
+        sLog.outErrorDb("Spell::DoSummonPossessed: creature entry %u not found for spell %u.", creatureEntry, m_spellInfo->Id);
+        return false;
+    }
+
+    Creature* spawnCreature = m_caster->SummonCreature(creatureEntry, list[0].x, list[0].y, list[0].z, m_caster->GetOrientation(), TEMPSUMMON_CORPSE_DESPAWN, 0);
+    if (!spawnCreature)
+    {
+        sLog.outError("Spell::DoSummonPossessed: creature entry %u for spell %u could not be summoned.", creatureEntry, m_spellInfo->Id);
+        return false;
+    }
+
+    list[0].creature = spawnCreature;
+
+    // Changes to be sent
+    spawnCreature->SetCharmerGuid(m_caster->GetObjectGuid());
+    spawnCreature->SetCreatorGuid(m_caster->GetObjectGuid());
+    spawnCreature->SetUInt32Value(UNIT_CREATED_BY_SPELL, m_spellInfo->Id);
+    spawnCreature->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_PLAYER_CONTROLLED);
+
+    spawnCreature->SetLevel(level);
+
+    spawnCreature->SetWalk(m_caster->IsWalking());
+    // TODO: Set Fly (ie glyph dependend)
+
+    // Internal changes
+    spawnCreature->addUnitState(UNIT_STAT_CONTROLLED);
+
+    // Changes to owner
+    if (m_caster->GetTypeId() == TYPEID_PLAYER)
+    {
+        Player* player = (Player*)m_caster;
+
+        player->GetCamera().SetView(spawnCreature);
+
+        player->SetCharm(spawnCreature);
+        player->SetClientControl(spawnCreature, 1);
+        player->SetMover(spawnCreature);
+
+        if (CharmInfo* charmInfo = spawnCreature->InitCharmInfo(spawnCreature))
+            charmInfo->InitPossessCreateSpells();
+        player->PossessSpellInitialize();
+    }
+
+    // Notify Summoner
+    if (m_originalCaster && m_originalCaster != m_caster && m_originalCaster->GetTypeId() == TYPEID_UNIT && ((Creature*)m_originalCaster)->AI())
+        ((Creature*)m_originalCaster)->AI()->JustSummoned(spawnCreature);
+
+    return true;
+}
+
 bool Spell::DoSummonPet(SpellEffectIndex eff_idx)
 {
     if (m_caster->GetPetGuid())

src/game/Unit.h

@@ -147,6 +147,9 @@ enum UnitStandStateType
 
 #define MAX_UNIT_STAND_STATE             10
 
+// byte flags value (UNIT_FIELD_BYTES_1,1)
+// This corresponds to free talent points (pet case)
+
 // byte flags value (UNIT_FIELD_BYTES_1,2)
 enum UnitStandFlags
 {
@@ -158,9 +161,6 @@ enum UnitStandFlags
     UNIT_STAND_FLAGS_ALL          = 0xFF
 };
 
-// byte flags value (UNIT_FIELD_BYTES_1,2)
-// This corresponds to free talent points (pet case)
-
 // byte flags value (UNIT_FIELD_BYTES_1,3)
 enum UnitBytes1_Flags
 {
@@ -200,6 +200,8 @@ enum UnitRename
     UNIT_CAN_BE_ABANDONED   = 0x02,
 };
 
+// byte flags value (UNIT_FIELD_BYTES_2,3)                  See enum ShapeshiftForm in SharedDefines.h
+
 #define CREATURE_MAX_SPELLS     4
 
 enum Swing

src/shared/revision_nr.h

@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "12047"
+ #define REVISION_NR "12048"
 #endif // __REVISION_NR_H__