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Support for UnitEvent and pass to PlayerEvent or CreatureEvent (#313)

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This commit is contained in:
iThorgrim
2025-09-17 11:15:03 +02:00
committed by GitHub
parent 972879c696
commit 1153fcaef7
6 changed files with 232 additions and 64 deletions
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34
src/ElunaLuaEngine_SC.cpp
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@@ -1191,6 +1191,39 @@ public:
}
};
class Eluna_UnitScript : public UnitScript
{
public:
Eluna_UnitScript() : UnitScript("Eluna_UnitScript") { }
void OnAuraApply(Unit* unit, Aura* aura) override
{
if (unit->IsPlayer())
sEluna->OnPlayerAuraApply(unit->ToPlayer(), aura);
if (unit->IsCreature())
sEluna->OnCreatureAuraApply(unit->ToCreature(), aura);
}
void OnHeal(Unit* healer, Unit* receiver, uint32& gain) override
{
if (healer->IsPlayer())
sEluna->OnPlayerHeal(healer->ToPlayer(), receiver, gain);
if (healer->IsCreature())
sEluna->OnCreatureHeal(healer->ToCreature(), receiver, gain);
}
void OnDamage(Unit* attacker, Unit* receiver, uint32& damage) override
{
if (attacker->IsPlayer())
sEluna->OnPlayerDamage(attacker->ToPlayer(), receiver, damage);
if (attacker->IsCreature())
sEluna->OnCreatureDamage(attacker->ToCreature(), receiver, damage);
}
};
// Group all custom scripts
void AddSC_ElunaLuaEngine()
{
@@ -1215,4 +1248,5 @@ void AddSC_ElunaLuaEngine()
new Eluna_VehicleScript();
new Eluna_WorldObjectScript();
new Eluna_WorldScript();
new Eluna_UnitScript();
}

8
src/LuaEngine/Hooks.h
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@@ -226,10 +226,13 @@ namespace Hooks
PLAYER_EVENT_ON_BG_DESERTION = 57, // (event, player, type)
PLAYER_EVENT_ON_PET_KILL = 58, // (event, player, killer)
PLAYER_EVENT_ON_CAN_RESURRECT = 59, // (event, player)
PLAYER_EVENT_ON_CAN_UPDATE_SKILL = 60, // (event, player, skill_id) -- Can return true or false
PLAYER_EVENT_ON_CAN_UPDATE_SKILL = 60, // (event, player, skill_id) - Can return true or false
PLAYER_EVENT_ON_BEFORE_UPDATE_SKILL = 61, // (event, player, skill_id, value, max, step) -- Can return new amount
PLAYER_EVENT_ON_UPDATE_SKILL = 62, // (event, player, skill_id, value, max, step, new_value)
PLAYER_EVENT_ON_QUEST_ACCEPT = 63, // (event, player, quest)
PLAYER_EVENT_ON_AURA_APPLY = 64, // (event, player, aura)
PLAYER_EVENT_ON_HEAL = 65, // (event, player, target, gain) - Can return new heal amount
PLAYER_EVENT_ON_DAMAGE = 66, // (event, player, target, damage) - Can return new damage amount
PLAYER_EVENT_COUNT
};
@@ -316,6 +319,9 @@ namespace Hooks
CREATURE_EVENT_ON_DIALOG_STATUS = 35, // (event, player, creature)
CREATURE_EVENT_ON_ADD = 36, // (event, creature)
CREATURE_EVENT_ON_REMOVE = 37, // (event, creature)
CREATURE_EVENT_ON_AURA_APPLY = 38, // (event, creature, aura)
CREATURE_EVENT_ON_HEAL = 39, // (event, creature, target, gain) - Can return new heal amount
CREATURE_EVENT_ON_DAMAGE = 40, // (event, creature, target, damage) - Can return new damage amount
CREATURE_EVENT_COUNT
};

6
src/LuaEngine/LuaEngine.h
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@@ -418,6 +418,9 @@ public:
bool OwnerAttackedBy(Creature* me, Unit* attacker);
bool OwnerAttacked(Creature* me, Unit* target);
void On_Reset(Creature* me);
void OnCreatureAuraApply(Creature* me, Aura* aura);
void OnCreatureHeal(Creature* me, Unit* target, uint32& gain);
void OnCreatureDamage(Creature* me, Unit* target, uint32& gain);
/* GameObject */
void OnDummyEffect(WorldObject* pCaster, uint32 spellId, SpellEffIndex effIndex, GameObject* pTarget);
@@ -491,6 +494,9 @@ public:
void OnPlayerUpdateSkill(Player* player, uint32 skill_id, uint32 value, uint32 max, uint32 step, uint32 new_value);
bool CanPlayerResurrect(Player* player);
void OnPlayerQuestAccept(Player* player, Quest const* quest);
void OnPlayerAuraApply(Player* player, Aura* aura);
void OnPlayerHeal(Player* player, Unit* target, uint32& gain);
void OnPlayerDamage(Player* player, Unit* target, uint32& gain);
/* Vehicle */
void OnInstall(Vehicle* vehicle);

58
src/LuaEngine/hooks/CreatureHooks.cpp
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@@ -327,3 +327,61 @@ bool Eluna::OwnerAttacked(Creature* me, Unit* target)
Push(target);
return CallAllFunctionsBool(CreatureEventBindings, CreatureUniqueBindings, entry_key, unique_key);
}
void Eluna::OnCreatureAuraApply(Creature* me, Aura* aura)
{
START_HOOK(CREATURE_EVENT_ON_AURA_APPLY, me);
Push(me);
Push(aura);
CallAllFunctions(CreatureEventBindings, CreatureUniqueBindings, entry_key, unique_key);
}
void Eluna::OnCreatureHeal(Creature* me, Unit* target, uint32& gain)
{
START_HOOK(CREATURE_EVENT_ON_HEAL, me);
Push(me);
Push(target);
Push(gain);
int gainIndex = lua_gettop(L);
int n = SetupStack(CreatureEventBindings, CreatureUniqueBindings, entry_key, unique_key, 3);
while (n > 0)
{
int r = CallOneFunction(n--, 3, 1);
if (lua_isnumber(L, r))
{
gain = CHECKVAL<uint32>(L, r);
// Update the stack for subsequent calls.
ReplaceArgument(gain, gainIndex);
}
lua_pop(L, 1);
}
CleanUpStack(3);
}
void Eluna::OnCreatureDamage(Creature* me, Unit* target, uint32& damage)
{
START_HOOK(CREATURE_EVENT_ON_DAMAGE, me);
Push(me);
Push(target);
Push(damage);
int damageIndex = lua_gettop(L);
int n = SetupStack(CreatureEventBindings, CreatureUniqueBindings, entry_key, unique_key, 3);
while (n > 0)
{
int r = CallOneFunction(n--, 3, 1);
if (lua_isnumber(L, r))
{
damage = CHECKVAL<uint32>(L, r);
// Update the stack for subsequent calls.
ReplaceArgument(damage, damageIndex);
}
lua_pop(L, 1);
}
CleanUpStack(3);
}

58
src/LuaEngine/hooks/PlayerHooks.cpp
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@@ -768,3 +768,61 @@ void Eluna::OnPlayerQuestAccept(Player* player, Quest const* quest)
Push(quest);
CallAllFunctions(PlayerEventBindings, key);
}
void Eluna::OnPlayerAuraApply(Player* player, Aura* aura)
{
START_HOOK(PLAYER_EVENT_ON_AURA_APPLY);
Push(player);
Push(aura);
CallAllFunctions(PlayerEventBindings, key);
}
void Eluna::OnPlayerHeal(Player* player, Unit* target, uint32& gain)
{
START_HOOK(PLAYER_EVENT_ON_HEAL);
Push(player);
Push(target);
Push(gain);
int gainIndex = lua_gettop(L);
int n = SetupStack(PlayerEventBindings, key, 3);
while (n > 0)
{
int r = CallOneFunction(n--, 3, 1);
if (lua_isnumber(L, r))
{
gain = CHECKVAL<uint32>(L, r);
// Update the stack for subsequent calls.
ReplaceArgument(gain, gainIndex);
}
lua_pop(L, 1);
}
CleanUpStack(3);
}
void Eluna::OnPlayerDamage(Player* player, Unit* target, uint32& damage)
{
START_HOOK(PLAYER_EVENT_ON_DAMAGE);
Push(player);
Push(target);
Push(damage);
int damageIndex = lua_gettop(L);
int n = SetupStack(PlayerEventBindings, key, 3);
while (n > 0)
{
int r = CallOneFunction(n--, 3, 1);
if (lua_isnumber(L, r))
{
damage = CHECKVAL<uint32>(L, r);
// Update the stack for subsequent calls.
ReplaceArgument(damage, damageIndex);
}
lua_pop(L, 1);
}
CleanUpStack(3);
}

6
src/LuaEngine/methods/GlobalMethods.h
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@@ -782,6 +782,9 @@ namespace LuaGlobalFunctions
* PLAYER_EVENT_ON_BEFORE_UPDATE_SKILL = 61, // (event, player, skill_id, value, max, step) -- Can return new amount
* PLAYER_EVENT_ON_UPDATE_SKILL = 62, // (event, player, skill_id, value, max, step, new_value)
* PLAYER_EVENT_ON_QUEST_ACCEPT = 63, // (event, player, quest)
* PLAYER_EVENT_ON_AURA_APPLY = 64, // (event, player, aura)
* PLAYER_EVENT_ON_HEAL = 65, // (event, player, target, heal) - Can return new heal amount
* PLAYER_EVENT_ON_DAMAGE = 66, // (event, player, target, damage) - Can return new damage amount
* };
* </pre>
*
@@ -1162,6 +1165,9 @@ namespace LuaGlobalFunctions
* CREATURE_EVENT_ON_DIALOG_STATUS = 35, // (event, player, creature)
* CREATURE_EVENT_ON_ADD = 36, // (event, creature)
* CREATURE_EVENT_ON_REMOVE = 37, // (event, creature)
* CREATURE_EVENT_ON_AURA_APPLY = 38, // (event, creature, aura)
* CREATURE_EVENT_ON_HEAL = 39, // (event, creature, target, heal) - Can return new heal amount
* CREATURE_EVENT_ON_DAMAGE = 40, // (event, creature, target, damage) - Can return new damage amount
* CREATURE_EVENT_COUNT
* };
* </pre>