Scripts/Spells: Implement OnPrecast scripting hook for spell scripts (#27632)

* Fires before cast bar starts

1 files changed, 12 insertions, 0 deletions

diff --git a/src/server/game/Spells/Spell.cpp b/src/server/game/Spells/Spell.cpp
index 7afa210808f..fa5f19f1ff5 100644
--- a/src/server/game/Spells/Spell.cpp
+++ b/src/server/game/Spells/Spell.cpp
@@ -3228,6 +3228,8 @@ SpellCastResult Spell::prepare(SpellCastTargets const& targets, AuraEffect const
     // set timer base at cast time
     ReSetTimer();
 
+    CallScriptOnPrecastHandler();
+
     TC_LOG_DEBUG("spells", "Spell::prepare: spell id %u source %u caster %d customCastFlags %u mask %u", m_spellInfo->Id, m_caster->GetEntry(), m_originalCaster ? m_originalCaster->GetEntry() : -1, _triggeredCastFlags, m_targets.GetTargetMask());
 
     if (m_spellInfo->HasAttribute(SPELL_ATTR12_START_COOLDOWN_ON_CAST_START))
@@ -8012,6 +8014,16 @@ void Spell::LoadScripts()
     }
 }
 
+void Spell::CallScriptOnPrecastHandler()
+{
+    for (auto scritr = m_loadedScripts.begin(); scritr != m_loadedScripts.end(); ++scritr)
+    {
+        (*scritr)->_PrepareScriptCall(SPELL_SCRIPT_HOOK_ON_PRECAST);
+        (*scritr)->OnPrecast();
+        (*scritr)->_FinishScriptCall();
+    }
+}
+
 void Spell::CallScriptBeforeCastHandlers()
 {
     for (auto scritr = m_loadedScripts.begin(); scritr != m_loadedScripts.end(); ++scritr)