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Variable damage to/from mobs

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* Player weapons and armor ratings are taken into account when damaging/getting damaged by mobs.
* Players have a 5% chance to critical strike mobs, this doubles the player's weapon power.
* Aside from player and mob stat based damage variance, there is also an inherent 20% variance to any damage.
This commit is contained in:
Jade
2020-09-27 02:53:03 +01:00
parent b4fb449e69
commit 4fea2ae896
7 changed files with 61 additions and 9 deletions
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37
src/MobManager.cpp
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@@ -61,12 +61,19 @@ void MobManager::pcAttackNpcs(CNSocket *sock, CNPacketData *data) {
}
Mob *mob = Mobs[pktdata[i]];
int damage = hitMob(sock, mob, 150);
std::pair<int,int> damage;
if (pkt->iNPCCnt > 1)
damage = getDamage(plr->groupDamage, (int)mob->data["m_iProtection"], true);
else
damage = getDamage(plr->pointDamage, (int)mob->data["m_iProtection"], true);
damage.first = hitMob(sock, mob, damage.first);
respdata[i].iID = mob->appearanceData.iNPC_ID;
respdata[i].iDamage = damage;
respdata[i].iDamage = damage.first;
respdata[i].iHP = mob->appearanceData.iHP;
respdata[i].iHitFlag = 2; // hitscan, not a rocket or a grenade
respdata[i].iHitFlag = damage.second; // hitscan, not a rocket or a grenade
}
sock->sendPacket((void*)respbuf, P_FE2CL_PC_ATTACK_NPCs_SUCC, resplen);
@@ -93,15 +100,16 @@ void MobManager::npcAttackPc(Mob *mob) {
sP_FE2CL_NPC_ATTACK_PCs *pkt = (sP_FE2CL_NPC_ATTACK_PCs*)respbuf;
sAttackResult *atk = (sAttackResult*)(respbuf + sizeof(sP_FE2CL_NPC_ATTACK_PCs));
plr->HP += (int)mob->data["m_iPower"]; // already negative
auto damage = getDamage(440 + (int)mob->data["m_iPower"], plr->defense, false);
plr->HP -= damage.first;
pkt->iNPC_ID = mob->appearanceData.iNPC_ID;
pkt->iPCCnt = 1;
atk->iID = plr->iID;
atk->iDamage = -(int)mob->data["m_iPower"];
atk->iDamage = damage.first;
atk->iHP = plr->HP;
atk->iHitFlag = 2;
atk->iHitFlag = damage.second;
mob->target->sendPacket((void*)respbuf, P_FE2CL_NPC_ATTACK_PCs, resplen);
PlayerManager::sendToViewable(mob->target, (void*)respbuf, P_FE2CL_NPC_ATTACK_PCs, resplen);
@@ -564,3 +572,20 @@ void MobManager::playerTick(CNServer *serv, time_t currTime) {
}
}
}
std::pair<int,int> MobManager::getDamage(int attackPower, int defensePower, bool shouldCrit) {
std::pair<int,int> ret = {};
int damage = attackPower * (rand() % 40 + 80) / 100; // 20% variance
ret.second = 1;
if (shouldCrit && rand() % 20 == 0) {
damage *= 2; // critical hit
ret.second = 2;
}
ret.first = std::max(std::min(damage, damage * damage / defensePower / 4), std::min(damage * damage / defensePower / 2, damage - defensePower));
return ret;
}