[Client] Add createSpellGfx() method to MechanicsHelper

Use it to create spell GFX when adding active spells to dedicated players and actors.

apps/openmw/mwmp/DedicatedActor.cpp

@@ -368,6 +368,8 @@ void DedicatedActor::addSpellsActive()
         MWWorld::TimeStamp timestamp = MWWorld::TimeStamp(activeSpell.timestampHour, activeSpell.timestampDay);
         int casterActorId = MechanicsHelper::getActorId(activeSpell.caster);
 
+        MechanicsHelper::createSpellGfx(getPtr(), activeSpell.params.mEffects);
+
         // Don't do a check for a spell's existence, because active effects from potions need to be applied here too
         activeSpells.addSpell(activeSpell.id, activeSpell.isStackingSpell, activeSpell.params.mEffects, activeSpell.params.mDisplayName, casterActorId, timestamp, false);
     }

apps/openmw/mwmp/DedicatedPlayer.cpp

@@ -507,6 +507,8 @@ void DedicatedPlayer::addSpellsActive()
         MWWorld::TimeStamp timestamp = MWWorld::TimeStamp(activeSpell.timestampHour, activeSpell.timestampDay);
         int casterActorId = MechanicsHelper::getActorId(activeSpell.caster);
 
+        MechanicsHelper::createSpellGfx(getPtr(), activeSpell.params.mEffects);
+
         // Don't do a check for a spell's existence, because active effects from potions need to be applied here too
         activeSpells.addSpell(activeSpell.id, activeSpell.isStackingSpell, activeSpell.params.mEffects, activeSpell.params.mDisplayName, casterActorId, timestamp, false);
     }

apps/openmw/mwmp/MechanicsHelper.cpp

@@ -13,6 +13,8 @@
 #include "../mwmechanics/spellcasting.hpp"
 #include "../mwmechanics/spellutil.hpp"
 
+#include "../mwrender/animation.hpp"
+
 #include "../mwworld/class.hpp"
 #include "../mwworld/inventorystore.hpp"
 
@@ -562,6 +564,28 @@ void MechanicsHelper::processCast(Cast cast, const MWWorld::Ptr& caster)
     }
 }
 
+void MechanicsHelper::createSpellGfx(const MWWorld::Ptr& targetPtr, const std::vector<ESM::ActiveEffect>& mEffects)
+{
+    for (auto&& effect : mEffects)
+    {
+        const ESM::MagicEffect* magicEffect = MWBase::Environment::get().getWorld()->getStore().get<ESM::MagicEffect>().find(effect.mEffectId);
+
+        const ESM::Static* castStatic;
+        if (!magicEffect->mHit.empty())
+            castStatic = MWBase::Environment::get().getWorld()->getStore().get<ESM::Static>().find(magicEffect->mHit);
+        else
+            castStatic = MWBase::Environment::get().getWorld()->getStore().get<ESM::Static>().find("VFX_DefaultHit");
+
+        bool loop = (magicEffect->mData.mFlags & ESM::MagicEffect::ContinuousVfx) != 0;
+        // Note: in case of non actor, a free effect should be fine as well
+        MWRender::Animation* anim = MWBase::Environment::get().getWorld()->getAnimation(targetPtr);
+        if (anim && !castStatic->mModel.empty())
+        {
+            anim->addEffect("meshes\\" + castStatic->mModel, magicEffect->mIndex, loop, "", magicEffect->mParticle);
+        }
+    }
+}
+
 bool MechanicsHelper::isStackingSpell(const std::string& id)
 {
     return !MWBase::Environment::get().getWorld()->getStore().get<ESM::Spell>().search(id);

apps/openmw/mwmp/MechanicsHelper.hpp

@@ -46,6 +46,8 @@ namespace MechanicsHelper
     void processAttack(mwmp::Attack attack, const MWWorld::Ptr& attacker);
     void processCast(mwmp::Cast cast, const MWWorld::Ptr& caster);
 
+    void createSpellGfx(const MWWorld::Ptr& targetPtr, const std::vector<ESM::ActiveEffect>& mEffects);
+
     bool isStackingSpell(const std::string& id);
     bool doesEffectListContainEffect(const ESM::EffectList& effectList, short effectId, short attributeId = -1, short skillId = -1);
     void unequipItemsByEffect(const MWWorld::Ptr& ptr, short enchantmentType, short effectId, short attributeId = -1, short skillId = -1);