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(WIP) Start implementing ICombatant

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Start by replacing `hitMob` with `takeDamage` interface function.
Simplify `pcAttackChars` a little by utilizing the new interface, then add more interface functions as needed.

A lot of the combat logic is tied to the `Mob` class. Need to start moving stuff over to CombatNPC.
This commit is contained in:
gsemaj 2022-04-11 23:14:03 -04:00
parent 166e148878
commit 5d9dcb8609
6 changed files with 106 additions and 99 deletions
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8
src/Abilities.cpp
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@ -148,7 +148,7 @@ bool doDebuff(CNSocket *sock, sSkillResult_Buff *respdata, int i, int32_t target
}
Mob* mob = (Mob*)npc;
Combat::hitMob(sock, mob, 0);
mob->takeDamage(sock, 0);
respdata[i].eCT = 4;
respdata[i].iID = mob->id;
@ -220,7 +220,7 @@ bool doDamageNDebuff(CNSocket *sock, sSkillResult_Damage_N_Debuff *respdata, int
Mob* mob = (Mob*)npc;
Combat::hitMob(sock, mob, 0); // just to gain aggro
mob->takeDamage(sock, 0);
respdata[i].eCT = 4;
respdata[i].iDamage = duration / 10;
@ -289,7 +289,7 @@ bool doDamage(CNSocket *sock, sSkillResult_Damage *respdata, int i, int32_t targ
Mob* mob = (Mob*)npc;
Player *plr = PlayerManager::getPlayer(sock);
int damage = Combat::hitMob(sock, mob, std::max(PC_MAXHEALTH(plr->level) * amount / 1000, mob->maxHealth * amount / 1000));
int damage = mob->takeDamage(sock, std::max(PC_MAXHEALTH(plr->level) * amount / 1000, mob->maxHealth * amount / 1000));
respdata[i].eCT = 4;
respdata[i].iDamage = damage;
@ -344,7 +344,7 @@ bool doLeech(CNSocket *sock, sSkillResult_Heal_HP *healdata, int i, int32_t targ
Mob* mob = (Mob*)npc;
int damage = Combat::hitMob(sock, mob, amount * 2);
int damage = mob->takeDamage(sock, amount * 2);
damagedata->eCT = 4;
damagedata->iDamage = damage;

182
src/Combat.cpp
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@ -17,8 +17,9 @@ using namespace Combat;
/// Player Id -> Bullet Id -> Bullet
std::map<int32_t, std::map<int8_t, Bullet>> Combat::Bullets;
void Player::takeDamage(EntityRef src, int amt) {
// stubbed
int Player::takeDamage(EntityRef src, int amt) {
HP -= amt;
return amt;
}
void Player::heal(EntityRef src, int amt) {
@ -29,8 +30,54 @@ bool Player::isAlive() {
return HP > 0;
}
void CombatNPC::takeDamage(EntityRef src, int amt) {
// stubbed
int Player::getCurrentHP() {
return HP;
}
int32_t Player::getID() {
return iID;
}
int CombatNPC::takeDamage(EntityRef src, int amt) {
/* REFACTOR: all of this logic is strongly coupled to mobs.
* come back to this when more of it is moved to CombatNPC.
* remove this cast when done */
Mob* mob = (Mob*)this;
// cannot kill mobs multiple times; cannot harm retreating mobs
if (mob->state != MobState::ROAMING && mob->state != MobState::COMBAT) {
return 0; // no damage
}
if (mob->skillStyle >= 0)
return 0; // don't hurt a mob casting corruption
if (mob->state == MobState::ROAMING) {
assert(mob->target == nullptr && src.type == EntityType::PLAYER); // players only for now
MobAI::enterCombat(src.sock, mob);
if (mob->groupLeader != 0)
MobAI::followToCombat(mob);
}
hp -= amt;
// wake up sleeping monster
if (mob->cbf & CSB_BIT_MEZ) {
mob->cbf &= ~CSB_BIT_MEZ;
INITSTRUCT(sP_FE2CL_CHAR_TIME_BUFF_TIME_OUT, pkt1);
pkt1.eCT = 2;
pkt1.iID = mob->id;
pkt1.iConditionBitFlag = mob->cbf;
NPCManager::sendToViewable(mob, &pkt1, P_FE2CL_CHAR_TIME_BUFF_TIME_OUT, sizeof(sP_FE2CL_CHAR_TIME_BUFF_TIME_OUT));
}
if (mob->hp <= 0)
killMob(mob->target, mob);
return amt;
}
void CombatNPC::heal(EntityRef src, int amt) {
@ -41,6 +88,14 @@ bool CombatNPC::isAlive() {
return hp > 0;
}
int CombatNPC::getCurrentHP() {
return hp;
}
int32_t CombatNPC::getID() {
return id;
}
static std::pair<int,int> getDamage(int attackPower, int defensePower, bool shouldCrit,
bool batteryBoost, int attackerStyle,
int defenderStyle, int difficulty) {
@ -152,7 +207,7 @@ static void pcAttackNpcs(CNSocket *sock, CNPacketData *data) {
else
plr->batteryW = 0;
damage.first = hitMob(sock, mob, damage.first);
damage.first = mob->takeDamage(sock, damage.first);
respdata[i].iID = mob->id;
respdata[i].iDamage = damage.first;
@ -205,42 +260,6 @@ void Combat::npcAttackPc(Mob *mob, time_t currTime) {
}
}
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) {
return 0; // no damage
}
if (mob->skillStyle >= 0)
return 0; // don't hurt a mob casting corruption
if (mob->state == MobState::ROAMING) {
assert(mob->target == nullptr);
MobAI::enterCombat(sock, mob);
if (mob->groupLeader != 0)
MobAI::followToCombat(mob);
}
mob->hp -= damage;
// wake up sleeping monster
if (mob->cbf & CSB_BIT_MEZ) {
mob->cbf &= ~CSB_BIT_MEZ;
INITSTRUCT(sP_FE2CL_CHAR_TIME_BUFF_TIME_OUT, pkt1);
pkt1.eCT = 2;
pkt1.iID = mob->id;
pkt1.iConditionBitFlag = mob->cbf;
NPCManager::sendToViewable(mob, &pkt1, P_FE2CL_CHAR_TIME_BUFF_TIME_OUT, sizeof(sP_FE2CL_CHAR_TIME_BUFF_TIME_OUT));
}
if (mob->hp <= 0)
killMob(mob->target, mob);
return damage;
}
/*
* When a group of players is doing missions together, we want them to all get
* quest items at the same time, but we don't want the odds of quest item
@ -432,7 +451,7 @@ static void pcAttackChars(CNSocket *sock, CNPacketData *data) {
return;
// Unlike the attack mob packet, attacking players packet has an 8-byte trail (Instead of 4 bytes).
if (!validInVarPacket(sizeof(sP_CL2FE_REQ_PC_ATTACK_CHARs), pkt->iTargetCnt, sizeof(int32_t) * 2, data->size)) {
if (!validInVarPacket(sizeof(sP_CL2FE_REQ_PC_ATTACK_CHARs), pkt->iTargetCnt, sizeof(sGM_PVPTarget), data->size)) {
std::cout << "[WARN] bad sP_CL2FE_REQ_PC_ATTACK_CHARs packet size\n";
return;
}
@ -456,11 +475,20 @@ static void pcAttackChars(CNSocket *sock, CNPacketData *data) {
resp->iTargetCnt = pkt->iTargetCnt;
for (int i = 0; i < pkt->iTargetCnt; i++) {
if (pktdata[i*2+1] == 1) { // eCT == 1; attack player
Player *target = nullptr;
ICombatant* target = nullptr;
sGM_PVPTarget* targdata = (sGM_PVPTarget*)(pktdata + i * 2);
std::pair<int, int> damage;
if (pkt->iTargetCnt > 1)
damage.first = plr->groupDamage;
else
damage.first = plr->pointDamage;
if (targdata->eCT == 1) { // eCT == 1; attack player
for (auto& pair : PlayerManager::players) {
if (pair.second->iID == pktdata[i*2]) {
if (pair.second->iID == targdata->iID) {
target = pair.second;
break;
}
@ -472,67 +500,41 @@ static void pcAttackChars(CNSocket *sock, CNPacketData *data) {
return;
}
std::pair<int,int> damage;
damage = getDamage(damage.first, ((Player*)target)->defense, true, (plr->batteryW > 6 + plr->level), -1, -1, 0);
if (pkt->iTargetCnt > 1)
damage.first = plr->groupDamage;
else
damage.first = plr->pointDamage;
damage = getDamage(damage.first, target->defense, true, (plr->batteryW > 6 + plr->level), -1, -1, 0);
if (plr->batteryW >= 6 + plr->level)
plr->batteryW -= 6 + plr->level;
else
plr->batteryW = 0;
target->HP -= damage.first;
respdata[i].eCT = pktdata[i*2+1];
respdata[i].iID = target->iID;
respdata[i].iDamage = damage.first;
respdata[i].iHP = target->HP;
respdata[i].iHitFlag = damage.second; // hitscan, not a rocket or a grenade
} else { // eCT == 4; attack mob
if (NPCManager::NPCs.find(pktdata[i*2]) == NPCManager::NPCs.end()) {
if (NPCManager::NPCs.find(targdata->iID) == NPCManager::NPCs.end()) {
// not sure how to best handle this
std::cout << "[WARN] pcAttackChars: NPC ID not found" << std::endl;
return;
}
BaseNPC* npc = NPCManager::NPCs[pktdata[i * 2]];
BaseNPC* npc = NPCManager::NPCs[targdata->iID];
if (npc->kind != EntityType::MOB) {
std::cout << "[WARN] pcAttackChars: NPC is not a mob" << std::endl;
return;
}
Mob* mob = (Mob*)npc;
std::pair<int,int> damage;
if (pkt->iTargetCnt > 1)
damage.first = plr->groupDamage;
else
damage.first = plr->pointDamage;
target = mob;
int difficulty = (int)mob->data["m_iNpcLevel"];
damage = getDamage(damage.first, (int)mob->data["m_iProtection"], true, (plr->batteryW > 6 + difficulty),
Nanos::nanoStyle(plr->activeNano), (int)mob->data["m_iNpcStyle"], difficulty);
if (plr->batteryW >= 6 + difficulty)
plr->batteryW -= 6 + difficulty;
else
plr->batteryW = 0;
damage.first = hitMob(sock, mob, damage.first);
respdata[i].eCT = pktdata[i*2+1];
respdata[i].iID = mob->id;
respdata[i].iDamage = damage.first;
respdata[i].iHP = mob->hp;
respdata[i].iHitFlag = damage.second; // hitscan, not a rocket or a grenade
}
if (plr->batteryW >= 6 + plr->level)
plr->batteryW -= 6 + plr->level;
else
plr->batteryW = 0;
damage.first = target->takeDamage(sock, damage.first);
respdata[i].eCT = targdata->eCT;
respdata[i].iID = target->getID();
respdata[i].iDamage = damage.first;
respdata[i].iHP = target->getCurrentHP();
respdata[i].iHitFlag = damage.second; // hitscan, not a rocket or a grenade
}
sock->sendPacket((void*)respbuf, P_FE2CL_PC_ATTACK_CHARs_SUCC, resplen);
@ -724,7 +726,7 @@ static void projectileHit(CNSocket* sock, CNPacketData* data) {
int difficulty = (int)mob->data["m_iNpcLevel"];
damage = getDamage(damage.first, (int)mob->data["m_iProtection"], true, bullet->weaponBoost, Nanos::nanoStyle(plr->activeNano), (int)mob->data["m_iNpcStyle"], difficulty);
damage.first = hitMob(sock, mob, damage.first);
damage.first = mob->takeDamage(sock, damage.first);
respdata[i].iID = mob->id;
respdata[i].iDamage = damage.first;

1
src/Combat.hpp
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@ -23,6 +23,5 @@ namespace Combat {
void init();
void npcAttackPc(Mob *mob, time_t currTime);
int hitMob(CNSocket *sock, Mob *mob, int damage);
void killMob(CNSocket *sock, Mob *mob);
}

8
src/Entities.hpp
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@ -78,9 +78,11 @@ public:
ICombatant() {}
virtual ~ICombatant() {}
virtual void takeDamage(EntityRef, int) = 0;
virtual int takeDamage(EntityRef, int) = 0;
virtual void heal(EntityRef, int) = 0;
virtual bool isAlive() = 0;
virtual int getCurrentHP() = 0;
virtual int32_t getID() = 0;
};
/*
@ -136,9 +138,11 @@ struct CombatNPC : public BaseNPC, public ICombatant {
virtual bool isExtant() override { return hp > 0; }
virtual void takeDamage(EntityRef src, int amt) override;
virtual int takeDamage(EntityRef src, int amt) override;
virtual void heal(EntityRef src, int amt) override;
virtual bool isAlive() override;
virtual int getCurrentHP() override;
virtual int32_t getID() override;
};
// Mob is in MobAI.hpp, Player is in Player.hpp

4
src/Player.hpp
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@ -90,9 +90,11 @@ struct Player : public Entity, public ICombatant {
virtual void enterIntoViewOf(CNSocket *sock) override;
virtual void disappearFromViewOf(CNSocket *sock) override;
virtual void takeDamage(EntityRef src, int amt) override;
virtual int takeDamage(EntityRef src, int amt) override;
virtual void heal(EntityRef src, int amt) override;
virtual bool isAlive() override;
virtual int getCurrentHP() override;
virtual int32_t getID() override;
sPCAppearanceData getAppearanceData();
};

2
src/core/Packets.hpp
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@ -47,8 +47,8 @@ struct PacketDesc {
* really should.
*/
struct sGM_PVPTarget {
uint32_t eCT;
uint32_t iID;
uint32_t eCT;
};
struct sSkillResult_Leech {