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[refactor] Move mob drop logic from Combat to ItemManager

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This commit is contained in:
dongresource
2021-03-16 19:41:20 +01:00
parent c5776b9322
commit 2017b38e23
5 changed files with 214 additions and 207 deletions
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185
src/Combat.cpp
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@@ -11,8 +11,6 @@
#include <assert.h>
std::map<int32_t, MobDropChance> Combat::MobDropChances;
std::map<int32_t, MobDrop> Combat::MobDrops;
/// Player Id -> Bullet Id -> Bullet
std::map<int32_t, std::map<int8_t, Bullet>> Combat::Bullets;
@@ -161,185 +159,6 @@ void Combat::npcAttackPc(Mob *mob, time_t currTime) {
}
}
void Combat::giveReward(CNSocket *sock, Mob* mob, int rolledBoosts, int rolledPotions,
int rolledCrate, int rolledCrateType, int rolledEvent) {
Player *plr = PlayerManager::getPlayer(sock);
const size_t resplen = sizeof(sP_FE2CL_REP_REWARD_ITEM) + sizeof(sItemReward);
assert(resplen < CN_PACKET_BUFFER_SIZE - 8);
// we know it's only one trailing struct, so we can skip full validation
uint8_t respbuf[resplen]; // not a variable length array, don't worry
sP_FE2CL_REP_REWARD_ITEM *reward = (sP_FE2CL_REP_REWARD_ITEM *)respbuf;
sItemReward *item = (sItemReward *)(respbuf + sizeof(sP_FE2CL_REP_REWARD_ITEM));
// don't forget to zero the buffer!
memset(respbuf, 0, resplen);
// sanity check
if (MobDrops.find(mob->dropType) == MobDrops.end()) {
std::cout << "[WARN] Drop Type " << mob->dropType << " was not found" << std::endl;
return;
}
// find correct mob drop
MobDrop& drop = MobDrops[mob->dropType];
plr->money += drop.taros;
// money nano boost
if (plr->iConditionBitFlag & CSB_BIT_REWARD_CASH) {
int boost = 0;
if (NanoManager::getNanoBoost(plr)) // for gumballs
boost = 1;
plr->money += drop.taros * (5 + boost) / 25;
}
// formula for scaling FM with player/mob level difference
// TODO: adjust this better
int levelDifference = plr->level - mob->level;
int fm = drop.fm;
if (levelDifference > 0)
fm = levelDifference < 10 ? fm - (levelDifference * fm / 10) : 0;
// scavenger nano boost
if (plr->iConditionBitFlag & CSB_BIT_REWARD_BLOB) {
int boost = 0;
if (NanoManager::getNanoBoost(plr)) // for gumballs
boost = 1;
fm += fm * (5 + boost) / 25;
}
MissionManager::updateFusionMatter(sock, fm);
// give boosts 1 in 3 times
if (drop.boosts > 0) {
if (rolledPotions % 3 == 0)
plr->batteryN += drop.boosts;
if (rolledBoosts % 3 == 0)
plr->batteryW += drop.boosts;
}
// caps
if (plr->batteryW > 9999)
plr->batteryW = 9999;
if (plr->batteryN > 9999)
plr->batteryN = 9999;
// simple rewards
reward->m_iCandy = plr->money;
reward->m_iFusionMatter = plr->fusionmatter;
reward->m_iBatteryN = plr->batteryN;
reward->m_iBatteryW = plr->batteryW;
reward->iFatigue = 100; // prevents warning message
reward->iFatigue_Level = 1;
reward->iItemCnt = 1; // remember to update resplen if you change this
int slot = ItemManager::findFreeSlot(plr);
bool awardDrop = false;
MobDropChance *chance = nullptr;
// sanity check
if (MobDropChances.find(drop.dropChanceType) == MobDropChances.end()) {
std::cout << "[WARN] Unknown Drop Chance Type: " << drop.dropChanceType << std::endl;
return; // this also prevents holiday crate drops, but oh well
} else {
chance = &MobDropChances[drop.dropChanceType];
awardDrop = (rolledCrate % 1000 < chance->dropChance);
}
// no drop
if (slot == -1 || !awardDrop) {
// no room for an item, but you still get FM and taros
reward->iItemCnt = 0;
sock->sendPacket((void*)respbuf, P_FE2CL_REP_REWARD_ITEM, sizeof(sP_FE2CL_REP_REWARD_ITEM));
} else {
// item reward
getReward(&item->sItem, &drop, chance, rolledCrateType);
item->iSlotNum = slot;
item->eIL = 1; // Inventory Location. 1 means player inventory.
// update player
plr->Inven[slot] = item->sItem;
sock->sendPacket((void*)respbuf, P_FE2CL_REP_REWARD_ITEM, resplen);
}
// event crates
if (settings::EVENTMODE != 0)
giveEventReward(sock, plr, rolledEvent);
}
void Combat::getReward(sItemBase *reward, MobDrop* drop, MobDropChance* chance, int rolled) {
reward->iType = 9;
reward->iOpt = 1;
int total = 0;
for (int ratio : chance->cratesRatio)
total += ratio;
// randomizing a crate
int randomNum = rolled % total;
int i = 0;
int sum = 0;
do {
reward->iID = drop->crateIDs[i];
sum += chance->cratesRatio[i];
i++;
}
while (sum<=randomNum);
}
void Combat::giveEventReward(CNSocket* sock, Player* player, int rolled) {
// random drop chance
if (rand() % 100 > settings::EVENTCRATECHANCE)
return;
// no slot = no reward
int slot = ItemManager::findFreeSlot(player);
if (slot == -1)
return;
const size_t resplen = sizeof(sP_FE2CL_REP_REWARD_ITEM) + sizeof(sItemReward);
assert(resplen < CN_PACKET_BUFFER_SIZE - 8);
uint8_t respbuf[resplen];
sP_FE2CL_REP_REWARD_ITEM* reward = (sP_FE2CL_REP_REWARD_ITEM*)respbuf;
sItemReward* item = (sItemReward*)(respbuf + sizeof(sP_FE2CL_REP_REWARD_ITEM));
// don't forget to zero the buffer!
memset(respbuf, 0, resplen);
// leave everything here as it is
reward->m_iCandy = player->money;
reward->m_iFusionMatter = player->fusionmatter;
reward->m_iBatteryN = player->batteryN;
reward->m_iBatteryW = player->batteryW;
reward->iFatigue = 100; // prevents warning message
reward->iFatigue_Level = 1;
reward->iItemCnt = 1; // remember to update resplen if you change this
// which crate to drop
int crateId;
switch (settings::EVENTMODE) {
// knishmas
case 1: crateId = 1187; break;
// halloween
case 2: crateId = 1181; break;
// spring
case 3: crateId = 1126; break;
// what
default:
std::cout << "[WARN] Unknown event Id " << settings::EVENTMODE << std::endl;
return;
}
item->sItem.iType = 9;
item->sItem.iID = crateId;
item->sItem.iOpt = 1;
item->iSlotNum = slot;
item->eIL = 1; // Inventory Location. 1 means player inventory.
// update player
player->Inven[slot] = item->sItem;
sock->sendPacket((void*)respbuf, P_FE2CL_REP_REWARD_ITEM, resplen);
}
int Combat::hitMob(CNSocket *sock, Mob *mob, int damage) {
// cannot kill mobs multiple times; cannot harm retreating mobs
if (mob->state != MobState::ROAMING && mob->state != MobState::COMBAT) {
@@ -396,7 +215,7 @@ void Combat::killMob(CNSocket *sock, Mob *mob) {
int rolledQItem = rand();
if (plr->groupCnt == 1 && plr->iIDGroup == plr->iID) {
giveReward(sock, mob, rolledBoosts, rolledPotions, rolledCrate, rolledCrateType, rolledEvent);
ItemManager::giveMobDrop(sock, mob, rolledBoosts, rolledPotions, rolledCrate, rolledCrateType, rolledEvent);
MissionManager::mobKilled(sock, mob->appearanceData.iNPCType, rolledQItem);
} else {
Player* otherPlayer = PlayerManager::getPlayerFromID(plr->iIDGroup);
@@ -416,7 +235,7 @@ void Combat::killMob(CNSocket *sock, Mob *mob) {
if (dist > 5000)
continue;
giveReward(sockTo, mob, rolledBoosts, rolledPotions, rolledCrate, rolledCrateType, rolledEvent);
ItemManager::giveMobDrop(sockTo, mob, rolledBoosts, rolledPotions, rolledCrate, rolledCrateType, rolledEvent);
MissionManager::mobKilled(sockTo, mob->appearanceData.iNPCType, rolledQItem);
}
}