reduce drain tickrate

src/Abilities.cpp

@@ -120,6 +120,7 @@ static SkillResult handleSkillBuff(SkillData* skill, int power, ICombatant* sour
 
     int timeBuffId = Abilities::getCSTBFromST(skill->skillType);
     SkillDrainType drainType = skill->drainType;
+    int combatLifetime = 0;
     if(!target->addBuff(timeBuffId,
         [drainType](EntityRef self, Buff* buff, int status, BuffStack* stack) {
             if(buff->id == ECSB_BOUNDINGBALL) {
@@ -131,9 +132,11 @@ static SkillResult handleSkillBuff(SkillData* skill, int power, ICombatant* sour
             if(drainType == SkillDrainType::ACTIVE && status == ETBU_DEL)
                 Buffs::timeBuffTimeout(self);
         },
-        [](EntityRef self, Buff* buff, time_t currTime) {
-            if(buff->id == ECSB_BOUNDINGBALL)
-                Buffs::tickDrain(self, buff); // drain
+        [combatLifetime](EntityRef self, Buff* buff, time_t currTime) mutable {
+            if(buff->id == ECSB_BOUNDINGBALL &&
+                combatLifetime % COMBAT_TICKS_PER_DRAIN_PROC == 0)
+                Buffs::tickDrain(self, buff, COMBAT_TICKS_PER_DRAIN_PROC); // drain
+            combatLifetime++;
         },
         &passiveBuff)) return SkillResult(); // no result if already buffed
 

src/Abilities.hpp

@@ -9,6 +9,7 @@
 #include <vector>
 #include <assert.h>
 
+const int COMBAT_TICKS_PER_DRAIN_PROC = 2;
 constexpr size_t MAX_SKILLRESULT_SIZE = sizeof(sSkillResult_BatteryDrain);
 
 enum class SkillType {

src/Buffs.cpp

@@ -169,12 +169,13 @@ void Buffs::timeBuffTimeout(EntityRef self) {
     NPCManager::sendToViewable(entity, &pkt, P_FE2CL_CHAR_TIME_BUFF_TIME_OUT, sizeof(sP_FE2CL_CHAR_TIME_BUFF_TIME_OUT));
 }
 
-void Buffs::tickDrain(EntityRef self, Buff* buff) {
+void Buffs::tickDrain(EntityRef self, Buff* buff, int mult) {
     if(self.kind != EntityKind::COMBAT_NPC && self.kind != EntityKind::MOB)
         return; // not implemented
     Entity* entity = self.getEntity();
     ICombatant* combatant = dynamic_cast<ICombatant*>(entity);
-    int damage = combatant->takeDamage(buff->getLastSource(), combatant->getMaxHP() / 100);
+    int damage = combatant->getMaxHP() / 100 * mult;
+    int dealt = combatant->takeDamage(buff->getLastSource(), damage);
 
     size_t resplen = sizeof(sP_FE2CL_CHAR_TIME_BUFF_TIME_TICK) + sizeof(sSkillResult_Damage);
     assert(resplen < CN_PACKET_BUFFER_SIZE - 8);
@@ -187,7 +188,7 @@ void Buffs::tickDrain(EntityRef self, Buff* buff) {
     pkt->iTB_ID = ECSB_BOUNDINGBALL;
 
     sSkillResult_Damage *drain = (sSkillResult_Damage*)(respbuf + sizeof(sP_FE2CL_CHAR_TIME_BUFF_TIME_TICK));
-    drain->iDamage = damage;
+    drain->iDamage = dealt;
     drain->iHP = combatant->getCurrentHP();
     drain->eCT = pkt->eCT;
     drain->iID = pkt->iID;

src/Buffs.hpp

@@ -89,5 +89,5 @@ namespace Buffs {
     void timeBuffUpdate(EntityRef self, Buff* buff, int status, BuffStack* stack);
     void timeBuffTick(EntityRef self, Buff* buff);
     void timeBuffTimeout(EntityRef self);
-    void tickDrain(EntityRef self, Buff* buff);
+    void tickDrain(EntityRef self, Buff* buff, int mult);
 }