Core/AI: refactor SpellHit and SpellHitTarget. (#24691)

* Core/AI: refactor SpellHit and SpellHitTarget.

- now caster/target is WorldObject instead of Unit
- remove SpellHitByGameObject / SpellHitTargetGameObject (handled by SpellHit / SpellHitTarget)
- rename parameters in scripts according parent methods

* Restore logic in Algalon script

* Changed check for REMORSELESS_WINTER hit to avoid dublicate call, because it has TARGET_UNIT_CASTER for effects 0/1 and TARGET_GAMEOBJECT_SRC_AREA for effect 2

* Fix build after merge

1 files changed, 5 insertions, 15 deletions

diff --git a/src/server/game/Spells/Spell.cpp b/src/server/game/Spells/Spell.cpp
index c75e60f6bd3..b6c7a94aa68 100644
--- a/src/server/game/Spells/Spell.cpp
+++ b/src/server/game/Spells/Spell.cpp
@@ -2534,12 +2534,7 @@ void Spell::TargetInfo::DoDamageAndTriggers(Spell* spell)
         //AI functions
         if (Creature* cHitTarget = _spellHitTarget->ToCreature())
             if (CreatureAI* hitTargetAI = cHitTarget->AI())
-            {
-                if (spell->m_caster->GetTypeId() == TYPEID_GAMEOBJECT)
-                    hitTargetAI->SpellHitByGameObject(spell->m_caster->ToGameObject(), spell->m_spellInfo);
-                else
-                    hitTargetAI->SpellHit(spell->m_caster->ToUnit(), spell->m_spellInfo);
-            }
+                hitTargetAI->SpellHit(spell->m_caster, spell->m_spellInfo);
 
         if (spell->m_caster->GetTypeId() == TYPEID_UNIT && spell->m_caster->ToCreature()->IsAIEnabled())
             spell->m_caster->ToCreature()->AI()->SpellHitTarget(_spellHitTarget, spell->m_spellInfo);
@@ -2583,19 +2578,14 @@ void Spell::GOTargetInfo::DoTargetSpellHit(Spell* spell, uint8 effIndex)
 
     spell->HandleEffects(nullptr, nullptr, go, effIndex, SPELL_EFFECT_HANDLE_HIT_TARGET);
 
-    //AI functions
+    // AI functions
     if (go->AI())
-    {
-        if (spell->m_caster->GetTypeId() == TYPEID_GAMEOBJECT)
-            go->AI()->SpellHitByGameObject(spell->m_caster->ToGameObject(), spell->m_spellInfo);
-        else
-            go->AI()->SpellHit(spell->m_caster->ToUnit(), spell->m_spellInfo);
-    }
+        go->AI()->SpellHit(spell->m_caster, spell->m_spellInfo);
 
     if (spell->m_caster->GetTypeId() == TYPEID_UNIT && spell->m_caster->ToCreature()->IsAIEnabled())
-        spell->m_caster->ToCreature()->AI()->SpellHitTargetGameObject(go, spell->m_spellInfo);
+        spell->m_caster->ToCreature()->AI()->SpellHitTarget(go, spell->m_spellInfo);
     else if (spell->m_caster->GetTypeId() == TYPEID_GAMEOBJECT && spell->m_caster->ToGameObject()->AI())
-        spell->m_caster->ToGameObject()->AI()->SpellHitTargetGameObject(go, spell->m_spellInfo);
+        spell->m_caster->ToGameObject()->AI()->SpellHitTarget(go, spell->m_spellInfo);
 
     spell->CallScriptOnHitHandlers();
     spell->CallScriptAfterHitHandlers();