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(WIP) Move away from rigid states/transitions to allow custom behavior

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This commit is contained in:
gsemaj 2022-04-13 18:01:52 -04:00
parent f6094fde58
commit 4f49bcea87
4 changed files with 242 additions and 240 deletions
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67
src/Combat.cpp
View File

@ -101,62 +101,29 @@ int32_t CombatNPC::getID() {
} }
void CombatNPC::step(time_t currTime) { void CombatNPC::step(time_t currTime) {
if (playersInView < 0)
std::cout << "[WARN] Weird playerview value " << playersInView << std::endl; if(stateHandlers.find(state) != stateHandlers.end())
stateHandlers[state](this, currTime);
// skip movement and combat if disabled or not in view else {
if ((!MobAI::simulateMobs || playersInView == 0) && state != AIState::DEAD std::cout << "[WARN] State " << (int)state << " has no handler; going inactive" << std::endl;
&& state != AIState::RETREAT) transition(AIState::INACTIVE, id);
return;
switch (state) {
case AIState::INACTIVE:
// no-op
break;
case AIState::ROAMING:
roamingStep(currTime);
break;
case AIState::COMBAT:
combatStep(currTime);
break;
case AIState::RETREAT:
retreatStep(currTime);
break;
case AIState::DEAD:
deadStep(currTime);
break;
} }
} }
void CombatNPC::transition(AIState newState, EntityRef src) { void CombatNPC::transition(AIState newState, EntityRef src) {
state = newState; state = newState;
switch (newState) { if (transitionHandlers.find(newState) != transitionHandlers.end())
case AIState::INACTIVE: transitionHandlers[newState](this, src);
onInactive(); else {
break; std::cout << "[WARN] Transition to " << (int)state << " has no handler; going inactive" << std::endl;
case AIState::ROAMING: transition(AIState::INACTIVE, id);
onRoamStart();
break;
case AIState::COMBAT:
/* TODO: fire any triggered events
for (NPCEvent& event : NPCManager::NPCEvents)
if (event.trigger == ON_COMBAT && event.npcType == type)
event.handler(src, this);
*/
onCombatStart(src);
break;
case AIState::RETREAT:
onRetreat();
break;
case AIState::DEAD:
/* TODO: fire any triggered events
for (NPCEvent& event : NPCManager::NPCEvents)
if (event.trigger == ON_KILLED && event.npcType == type)
event.handler(src, this);
*/
onDeath(src);
break;
} }
/* TODO: fire any triggered events
for (NPCEvent& event : NPCManager::NPCEvents)
if (event.trigger == ON_KILLED && event.npcType == type)
event.handler(src, this);
*/
} }
static std::pair<int,int> getDamage(int attackPower, int defensePower, bool shouldCrit, static std::pair<int,int> getDamage(int attackPower, int defensePower, bool shouldCrit,

19
src/Entities.hpp
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@ -6,7 +6,7 @@
#include <stdint.h> #include <stdint.h>
#include <set> #include <set>
enum class EntityKind : uint8_t { enum EntityKind {
INVALID, INVALID,
PLAYER, PLAYER,
SIMPLE_NPC, SIMPLE_NPC,
@ -92,7 +92,6 @@ public:
virtual bool isAlive() = 0; virtual bool isAlive() = 0;
virtual int getCurrentHP() = 0; virtual int getCurrentHP() = 0;
virtual int32_t getID() = 0; virtual int32_t getID() = 0;
virtual void step(time_t currTime) = 0; virtual void step(time_t currTime) = 0;
}; };
@ -133,11 +132,17 @@ struct CombatNPC : public BaseNPC, public ICombatant {
AIState state = AIState::INACTIVE; AIState state = AIState::INACTIVE;
int playersInView = 0; // for optimizing away AI in empty chunks int playersInView = 0; // for optimizing away AI in empty chunks
std::map<AIState, void (*)(CombatNPC*, time_t)> stateHandlers;
std::map<AIState, void (*)(CombatNPC*, EntityRef)> transitionHandlers;
CombatNPC(int x, int y, int z, int angle, uint64_t iID, int t, int id, int maxHP) CombatNPC(int x, int y, int z, int angle, uint64_t iID, int t, int id, int maxHP)
: BaseNPC(angle, iID, t, id), maxHealth(maxHP) { : BaseNPC(angle, iID, t, id), maxHealth(maxHP) {
spawnX = x; spawnX = x;
spawnY = y; spawnY = y;
spawnZ = z; spawnZ = z;
stateHandlers[AIState::INACTIVE] = {};
transitionHandlers[AIState::INACTIVE] = {};
} }
virtual bool isExtant() override { return hp > 0; } virtual bool isExtant() override { return hp > 0; }
@ -147,19 +152,9 @@ struct CombatNPC : public BaseNPC, public ICombatant {
virtual bool isAlive() override; virtual bool isAlive() override;
virtual int getCurrentHP() override; virtual int getCurrentHP() override;
virtual int32_t getID() override; virtual int32_t getID() override;
virtual void step(time_t currTime) override; virtual void step(time_t currTime) override;
virtual void roamingStep(time_t currTime) {} // no-ops by default
virtual void combatStep(time_t currTime) {}
virtual void retreatStep(time_t currTime) {}
virtual void deadStep(time_t currTime) {}
virtual void transition(AIState newState, EntityRef src); virtual void transition(AIState newState, EntityRef src);
virtual void onInactive() {} // no-ops by default
virtual void onRoamStart() {}
virtual void onCombatStart(EntityRef src) {}
virtual void onRetreat() {}
virtual void onDeath(EntityRef src) {}
}; };
// Mob is in MobAI.hpp, Player is in Player.hpp // Mob is in MobAI.hpp, Player is in Player.hpp

360
src/MobAI.cpp
View File

@ -415,48 +415,71 @@ static void drainMobHP(Mob *mob, int amount) {
mob->transition(AIState::DEAD, mob->target); mob->transition(AIState::DEAD, mob->target);
} }
void Mob::deadStep(time_t currTime) { void MobAI::incNextMovement(Mob* mob, time_t currTime) {
if (currTime == 0)
currTime = getTime();
int delay = (int)mob->data["m_iDelayTime"] * 1000;
mob->nextMovement = currTime + delay / 2 + Rand::rand(delay / 2);
}
void Mob::step(time_t currTime) {
if (playersInView < 0)
std::cout << "[WARN] Weird playerview value " << playersInView << std::endl;
// skip movement and combat if disabled or not in view
if ((!MobAI::simulateMobs || playersInView == 0) && state != AIState::DEAD
&& state != AIState::RETREAT)
return;
// call superclass step
CombatNPC::step(currTime);
}
void MobAI::deadStep(CombatNPC* npc, time_t currTime) {
Mob* self = (Mob*)npc;
// despawn the mob after a short delay // despawn the mob after a short delay
if (killedTime != 0 && !despawned && currTime - killedTime > 2000) { if (self->killedTime != 0 && !self->despawned && currTime - self->killedTime > 2000) {
despawned = true; self->despawned = true;
INITSTRUCT(sP_FE2CL_NPC_EXIT, pkt); INITSTRUCT(sP_FE2CL_NPC_EXIT, pkt);
pkt.iNPC_ID = id; pkt.iNPC_ID = self->id;
NPCManager::sendToViewable(this, &pkt, P_FE2CL_NPC_EXIT, sizeof(sP_FE2CL_NPC_EXIT)); NPCManager::sendToViewable(self, &pkt, P_FE2CL_NPC_EXIT, sizeof(sP_FE2CL_NPC_EXIT));
// if it was summoned, mark it for removal // if it was summoned, mark it for removal
if (summoned) { if (self->summoned) {
std::cout << "[INFO] Queueing killed summoned mob for removal" << std::endl; std::cout << "[INFO] Queueing killed summoned mob for removal" << std::endl;
NPCManager::queueNPCRemoval(id); NPCManager::queueNPCRemoval(self->id);
return; return;
} }
// pre-set spawn coordinates if not marked for removal // pre-set spawn coordinates if not marked for removal
x = spawnX; self->x = self->spawnX;
y = spawnY; self->y = self->spawnY;
z = spawnZ; self->z = self->spawnZ;
} }
// to guide their groupmates, group leaders still need to move despite being dead // to guide their groupmates, group leaders still need to move despite being dead
if (groupLeader == id) if (self->groupLeader == self->id)
roamingStep(currTime); roamingStep(self, currTime);
if (killedTime != 0 && currTime - killedTime < regenTime * 100) if (self->killedTime != 0 && currTime - self->killedTime < self->regenTime * 100)
return; return;
std::cout << "respawning mob " << id << " with HP = " << maxHealth << std::endl; std::cout << "respawning mob " << self->id << " with HP = " << self->maxHealth << std::endl;
transition(AIState::ROAMING, id); self->transition(AIState::ROAMING, self->id);
// if mob is a group leader/follower, spawn where the group is. // if mob is a group leader/follower, spawn where the group is.
if (groupLeader != 0) { if (self->groupLeader != 0) {
if (NPCManager::NPCs.find(groupLeader) != NPCManager::NPCs.end() && NPCManager::NPCs[groupLeader]->kind == EntityKind::MOB) { if (NPCManager::NPCs.find(self->groupLeader) != NPCManager::NPCs.end() && NPCManager::NPCs[self->groupLeader]->kind == EntityKind::MOB) {
Mob* leaderMob = (Mob*)NPCManager::NPCs[groupLeader]; Mob* leaderMob = (Mob*)NPCManager::NPCs[self->groupLeader];
x = leaderMob->x + offsetX; self->x = leaderMob->x + self->offsetX;
y = leaderMob->y + offsetY; self->y = leaderMob->y + self->offsetY;
z = leaderMob->z; self->z = leaderMob->z;
} else { } else {
std::cout << "[WARN] deadStep: mob cannot find it's leader!" << std::endl; std::cout << "[WARN] deadStep: mob cannot find it's leader!" << std::endl;
} }
@ -464,162 +487,157 @@ void Mob::deadStep(time_t currTime) {
INITSTRUCT(sP_FE2CL_NPC_NEW, pkt); INITSTRUCT(sP_FE2CL_NPC_NEW, pkt);
pkt.NPCAppearanceData = getAppearanceData(); pkt.NPCAppearanceData = self->getAppearanceData();
// notify all nearby players // notify all nearby players
NPCManager::sendToViewable(this, &pkt, P_FE2CL_NPC_NEW, sizeof(sP_FE2CL_NPC_NEW)); NPCManager::sendToViewable(self, &pkt, P_FE2CL_NPC_NEW, sizeof(sP_FE2CL_NPC_NEW));
} }
void Mob::combatStep(time_t currTime) { void MobAI::combatStep(CombatNPC* npc, time_t currTime) {
assert(target != nullptr); Mob* self = (Mob*)npc;
assert(self->target != nullptr);
// lose aggro if the player lost connection // lose aggro if the player lost connection
if (PlayerManager::players.find(target) == PlayerManager::players.end()) { if (PlayerManager::players.find(self->target) == PlayerManager::players.end()) {
if (!MobAI::aggroCheck(this, getTime())) if (!MobAI::aggroCheck(self, getTime()))
transition(AIState::RETREAT, target); self->transition(AIState::RETREAT, self->target);
return; return;
} }
Player *plr = PlayerManager::getPlayer(target); Player *plr = PlayerManager::getPlayer(self->target);
// lose aggro if the player became invulnerable or died // lose aggro if the player became invulnerable or died
if (plr->HP <= 0 if (plr->HP <= 0
|| (plr->iSpecialState & CN_SPECIAL_STATE_FLAG__INVULNERABLE)) { || (plr->iSpecialState & CN_SPECIAL_STATE_FLAG__INVULNERABLE)) {
if (!MobAI::aggroCheck(this, getTime())) if (!MobAI::aggroCheck(self, getTime()))
transition(AIState::RETREAT, target); self->transition(AIState::RETREAT, self->target);
return; return;
} }
// drain // drain
if (skillStyle < 0 && (lastDrainTime == 0 || currTime - lastDrainTime >= 1000) if (self->skillStyle < 0 && (self->lastDrainTime == 0 || currTime - self->lastDrainTime >= 1000)
&& cbf & CSB_BIT_BOUNDINGBALL) { && self->cbf & CSB_BIT_BOUNDINGBALL) {
drainMobHP(this, maxHealth / 20); // lose 5% every second drainMobHP(self, self->maxHealth / 20); // lose 5% every second
lastDrainTime = currTime; self->lastDrainTime = currTime;
} }
// if drain killed the mob, return early // if drain killed the mob, return early
if (hp <= 0) if (self->hp <= 0)
return; return;
// unbuffing // unbuffing
std::unordered_map<int32_t, time_t>::iterator it = unbuffTimes.begin(); std::unordered_map<int32_t, time_t>::iterator it = self->unbuffTimes.begin();
while (it != unbuffTimes.end()) { while (it != self->unbuffTimes.end()) {
if (currTime >= it->second) { if (currTime >= it->second) {
cbf &= ~it->first; self->cbf &= ~it->first;
INITSTRUCT(sP_FE2CL_CHAR_TIME_BUFF_TIME_OUT, pkt1); INITSTRUCT(sP_FE2CL_CHAR_TIME_BUFF_TIME_OUT, pkt1);
pkt1.eCT = 2; pkt1.eCT = 2;
pkt1.iID = id; pkt1.iID = self->id;
pkt1.iConditionBitFlag = cbf; pkt1.iConditionBitFlag = self->cbf;
NPCManager::sendToViewable(this, &pkt1, P_FE2CL_CHAR_TIME_BUFF_TIME_OUT, sizeof(sP_FE2CL_CHAR_TIME_BUFF_TIME_OUT)); NPCManager::sendToViewable(self, &pkt1, P_FE2CL_CHAR_TIME_BUFF_TIME_OUT, sizeof(sP_FE2CL_CHAR_TIME_BUFF_TIME_OUT));
it = unbuffTimes.erase(it); it = self->unbuffTimes.erase(it);
} else { } else {
it++; it++;
} }
} }
// skip attack if stunned or asleep // skip attack if stunned or asleep
if (cbf & (CSB_BIT_STUN|CSB_BIT_MEZ)) { if (self->cbf & (CSB_BIT_STUN|CSB_BIT_MEZ)) {
skillStyle = -1; // in this case we also reset the any outlying abilities the mob might be winding up. self->skillStyle = -1; // in this case we also reset the any outlying abilities the mob might be winding up.
return; return;
} }
int distance = hypot(plr->x - x, plr->y - y); int distance = hypot(plr->x - self->x, plr->y - self->y);
int mobRange = (int)data["m_iAtkRange"] + (int)data["m_iRadius"]; int mobRange = (int)self->data["m_iAtkRange"] + (int)self->data["m_iRadius"];
if (currTime >= nextAttack) { if (currTime >= self->nextAttack) {
if (skillStyle != -1 || distance <= mobRange || Rand::rand(20) == 0) // while not in attack range, 1 / 20 chance. if (self->skillStyle != -1 || distance <= mobRange || Rand::rand(20) == 0) // while not in attack range, 1 / 20 chance.
useAbilities(this, currTime); useAbilities(self, currTime);
if (target == nullptr) if (self->target == nullptr)
return; return;
} }
int distanceToTravel = INT_MAX; int distanceToTravel = INT_MAX;
// movement logic: move when out of range but don't move while casting a skill // movement logic: move when out of range but don't move while casting a skill
if (distance > mobRange && skillStyle == -1) { if (distance > mobRange && self->skillStyle == -1) {
if (nextMovement != 0 && currTime < nextMovement) if (self->nextMovement != 0 && currTime < self->nextMovement)
return; return;
nextMovement = currTime + 400; self->nextMovement = currTime + 400;
if (currTime >= nextAttack) if (currTime >= self->nextAttack)
nextAttack = 0; self->nextAttack = 0;
// halve movement speed if snared // halve movement speed if snared
if (cbf & CSB_BIT_DN_MOVE_SPEED) if (self->cbf & CSB_BIT_DN_MOVE_SPEED)
speed /= 2; self->speed /= 2;
int targetX = plr->x; int targetX = plr->x;
int targetY = plr->y; int targetY = plr->y;
if (groupLeader != 0) { if (self->groupLeader != 0) {
targetX += offsetX*distance/(idleRange + 1); targetX += self->offsetX*distance/(self->idleRange + 1);
targetY += offsetY*distance/(idleRange + 1); targetY += self->offsetY*distance/(self->idleRange + 1);
} }
distanceToTravel = std::min(distance-mobRange+1, speed*2/5); distanceToTravel = std::min(distance-mobRange+1, self->speed*2/5);
auto targ = lerp(x, y, targetX, targetY, distanceToTravel); auto targ = lerp(self->x, self->y, targetX, targetY, distanceToTravel);
if (distanceToTravel < speed*2/5 && currTime >= nextAttack) if (distanceToTravel < self->speed*2/5 && currTime >= self->nextAttack)
nextAttack = 0; self->nextAttack = 0;
NPCManager::updateNPCPosition(id, targ.first, targ.second, z, instanceID, angle); NPCManager::updateNPCPosition(self->id, targ.first, targ.second, self->z, self->instanceID, self->angle);
INITSTRUCT(sP_FE2CL_NPC_MOVE, pkt); INITSTRUCT(sP_FE2CL_NPC_MOVE, pkt);
pkt.iNPC_ID = id; pkt.iNPC_ID = self->id;
pkt.iSpeed = speed; pkt.iSpeed = self->speed;
pkt.iToX = x = targ.first; pkt.iToX = self->x = targ.first;
pkt.iToY = y = targ.second; pkt.iToY = self->y = targ.second;
pkt.iToZ = plr->z; pkt.iToZ = plr->z;
pkt.iMoveStyle = 1; pkt.iMoveStyle = 1;
// notify all nearby players // notify all nearby players
NPCManager::sendToViewable(this, &pkt, P_FE2CL_NPC_MOVE, sizeof(sP_FE2CL_NPC_MOVE)); NPCManager::sendToViewable(self, &pkt, P_FE2CL_NPC_MOVE, sizeof(sP_FE2CL_NPC_MOVE));
} }
/* attack logic /* attack logic
* 2/5 represents 400 ms which is the time interval mobs use per movement logic step * 2/5 represents 400 ms which is the time interval mobs use per movement logic step
* if the mob is one move interval away, we should just start attacking anyways. * if the mob is one move interval away, we should just start attacking anyways.
*/ */
if (distance <= mobRange || distanceToTravel < speed*2/5) { if (distance <= mobRange || distanceToTravel < self->speed*2/5) {
if (nextAttack == 0 || currTime >= nextAttack) { if (self->nextAttack == 0 || currTime >= self->nextAttack) {
nextAttack = currTime + (int)data["m_iDelayTime"] * 100; self->nextAttack = currTime + (int)self->data["m_iDelayTime"] * 100;
Combat::npcAttackPc(this, currTime); Combat::npcAttackPc(self, currTime);
} }
} }
// retreat if the player leaves combat range // retreat if the player leaves combat range
int xyDistance = hypot(plr->x - roamX, plr->y - roamY); int xyDistance = hypot(plr->x - self->roamX, plr->y - self->roamY);
distance = hypot(xyDistance, plr->z - roamZ); distance = hypot(xyDistance, plr->z - self->roamZ);
if (distance >= data["m_iCombatRange"]) { if (distance >= self->data["m_iCombatRange"]) {
transition(AIState::RETREAT, target); self->transition(AIState::RETREAT, self->target);
} }
} }
void MobAI::incNextMovement(Mob *mob, time_t currTime) { void MobAI::roamingStep(CombatNPC* npc, time_t currTime) {
if (currTime == 0) Mob* self = (Mob*)npc;
currTime = getTime();
int delay = (int)mob->data["m_iDelayTime"] * 1000;
mob->nextMovement = currTime + delay/2 + Rand::rand(delay/2);
}
void Mob::roamingStep(time_t currTime) {
/* /*
* We reuse nextAttack to avoid scanning for players all the time, but to still * We reuse nextAttack to avoid scanning for players all the time, but to still
* do so more often than if we waited for nextMovement (which is way too slow). * do so more often than if we waited for nextMovement (which is way too slow).
* In the case of group leaders, this step will be called by dead mobs, so disable attack. * In the case of group leaders, this step will be called by dead mobs, so disable attack.
*/ */
if (state != AIState::DEAD && (nextAttack == 0 || currTime >= nextAttack)) { if (self->state != AIState::DEAD && (self->nextAttack == 0 || currTime >= self->nextAttack)) {
nextAttack = currTime + 500; self->nextAttack = currTime + 500;
if (aggroCheck(this, currTime)) if (aggroCheck(self, currTime))
return; return;
} }
// no random roaming if the mob already has a set path // no random roaming if the mob already has a set path
if (staticPath) if (self->staticPath)
return; return;
if (groupLeader != 0 && groupLeader != id) // don't roam by yourself without group leader if (self->groupLeader != 0 && self->groupLeader != self->id) // don't roam by yourself without group leader
return; return;
/* /*
@ -627,151 +645,157 @@ void Mob::roamingStep(time_t currTime) {
* Transport::stepNPCPathing() (which ticks at a higher frequency than nextMovement), * Transport::stepNPCPathing() (which ticks at a higher frequency than nextMovement),
* so we don't have to check if there's already entries in the queue since we know there won't be. * so we don't have to check if there's already entries in the queue since we know there won't be.
*/ */
if (nextMovement != 0 && currTime < nextMovement) if (self->nextMovement != 0 && currTime < self->nextMovement)
return; return;
incNextMovement(this, currTime); incNextMovement(self, currTime);
int xStart = spawnX - idleRange/2; int xStart = self->spawnX - self->idleRange/2;
int yStart = spawnY - idleRange/2; int yStart = self->spawnY - self->idleRange/2;
// some mobs don't move (and we mustn't divide/modulus by zero) // some mobs don't move (and we mustn't divide/modulus by zero)
if (idleRange == 0 || speed == 0) if (self->idleRange == 0 || self->speed == 0)
return; return;
int farX, farY, distance; int farX, farY, distance;
int minDistance = idleRange / 2; int minDistance = self->idleRange / 2;
// pick a random destination // pick a random destination
farX = xStart + Rand::rand(idleRange); farX = xStart + Rand::rand(self->idleRange);
farY = yStart + Rand::rand(idleRange); farY = yStart + Rand::rand(self->idleRange);
distance = std::abs(std::max(farX - x, farY - y)); distance = std::abs(std::max(farX - self->x, farY - self->y));
if (distance == 0) if (distance == 0)
distance += 1; // hack to avoid FPE distance += 1; // hack to avoid FPE
// if it's too short a walk, go further in that direction // if it's too short a walk, go further in that direction
farX = x + (farX - x) * minDistance / distance; farX = self->x + (farX - self->x) * minDistance / distance;
farY = y + (farY - y) * minDistance / distance; farY = self->y + (farY - self->y) * minDistance / distance;
// but don't got out of bounds // but don't got out of bounds
farX = std::clamp(farX, xStart, xStart + idleRange); farX = std::clamp(farX, xStart, xStart + self->idleRange);
farY = std::clamp(farY, yStart, yStart + idleRange); farY = std::clamp(farY, yStart, yStart + self->idleRange);
// halve movement speed if snared // halve movement speed if snared
if (cbf & CSB_BIT_DN_MOVE_SPEED) if (self->cbf & CSB_BIT_DN_MOVE_SPEED)
speed /= 2; self->speed /= 2;
std::queue<Vec3> queue; std::queue<Vec3> queue;
Vec3 from = { x, y, z }; Vec3 from = { self->x, self->y, self->z };
Vec3 to = { farX, farY, z }; Vec3 to = { farX, farY, self->z };
// add a route to the queue; to be processed in Transport::stepNPCPathing() // add a route to the queue; to be processed in Transport::stepNPCPathing()
Transport::lerp(&queue, from, to, speed); Transport::lerp(&queue, from, to, self->speed);
Transport::NPCQueues[id] = queue; Transport::NPCQueues[self->id] = queue;
if (groupLeader != 0 && groupLeader == id) { if (self->groupLeader != 0 && self->groupLeader == self->id) {
// make followers follow this npc. // make followers follow this npc.
for (int i = 0; i < 4; i++) { for (int i = 0; i < 4; i++) {
if (groupMember[i] == 0) if (self->groupMember[i] == 0)
break; break;
if (NPCManager::NPCs.find(groupMember[i]) == NPCManager::NPCs.end() || NPCManager::NPCs[groupMember[i]]->kind != EntityKind::MOB) { if (NPCManager::NPCs.find(self->groupMember[i]) == NPCManager::NPCs.end() || NPCManager::NPCs[self->groupMember[i]]->kind != EntityKind::MOB) {
std::cout << "[WARN] roamingStep: leader can't find a group member!" << std::endl; std::cout << "[WARN] roamingStep: leader can't find a group member!" << std::endl;
continue; continue;
} }
std::queue<Vec3> queue2; std::queue<Vec3> queue2;
Mob* followerMob = (Mob*)NPCManager::NPCs[groupMember[i]]; Mob* followerMob = (Mob*)NPCManager::NPCs[self->groupMember[i]];
from = { followerMob->x, followerMob->y, followerMob->z }; from = { followerMob->x, followerMob->y, followerMob->z };
to = { farX + followerMob->offsetX, farY + followerMob->offsetY, followerMob->z }; to = { farX + followerMob->offsetX, farY + followerMob->offsetY, followerMob->z };
Transport::lerp(&queue2, from, to, speed); Transport::lerp(&queue2, from, to, self->speed);
Transport::NPCQueues[followerMob->id] = queue2; Transport::NPCQueues[followerMob->id] = queue2;
} }
} }
} }
void Mob::retreatStep(time_t currTime) { void MobAI::retreatStep(CombatNPC* npc, time_t currTime) {
if (nextMovement != 0 && currTime < nextMovement) Mob* self = (Mob*)npc;
if (self->nextMovement != 0 && currTime < self->nextMovement)
return; return;
nextMovement = currTime + 400; self->nextMovement = currTime + 400;
// distance between spawn point and current location // distance between spawn point and current location
int distance = hypot(x - roamX, y - roamY); int distance = hypot(self->x - self->roamX, self->y - self->roamY);
//if (distance > mob->data["m_iIdleRange"]) { //if (distance > mob->data["m_iIdleRange"]) {
if (distance > 10) { if (distance > 10) {
INITSTRUCT(sP_FE2CL_NPC_MOVE, pkt); INITSTRUCT(sP_FE2CL_NPC_MOVE, pkt);
auto targ = lerp(x, y, roamX, roamY, (int)speed*4/5); auto targ = lerp(self->x, self->y, self->roamX, self->roamY, (int)self->speed*4/5);
pkt.iNPC_ID = id; pkt.iNPC_ID = self->id;
pkt.iSpeed = (int)speed * 2; pkt.iSpeed = (int)self->speed * 2;
pkt.iToX = x = targ.first; pkt.iToX = self->x = targ.first;
pkt.iToY = y = targ.second; pkt.iToY = self->y = targ.second;
pkt.iToZ = z = spawnZ; pkt.iToZ = self->z = self->spawnZ;
pkt.iMoveStyle = 1; pkt.iMoveStyle = 1;
// notify all nearby players // notify all nearby players
NPCManager::sendToViewable(this, &pkt, P_FE2CL_NPC_MOVE, sizeof(sP_FE2CL_NPC_MOVE)); NPCManager::sendToViewable(self, &pkt, P_FE2CL_NPC_MOVE, sizeof(sP_FE2CL_NPC_MOVE));
} }
// if we got there // if we got there
//if (distance <= mob->data["m_iIdleRange"]) { //if (distance <= mob->data["m_iIdleRange"]) {
if (distance <= 10) { // retreat back to the spawn point if (distance <= 10) { // retreat back to the spawn point
transition(AIState::ROAMING, id); self->transition(AIState::ROAMING, self->id);
} }
} }
void Mob::onInactive() { void MobAI::onRoamStart(CombatNPC* npc, EntityRef src) {
// no-op Mob* self = (Mob*)npc;
}
void Mob::onRoamStart() { self->hp = self->maxHealth;
hp = maxHealth; self->killedTime = 0;
killedTime = 0; self->nextAttack = 0;
nextAttack = 0; self->cbf = 0;
cbf = 0;
// cast a return home heal spell, this is the right way(tm) // cast a return home heal spell, this is the right way(tm)
std::vector<int> targetData = { 1, 0, 0, 0, 0 }; std::vector<int> targetData = { 1, 0, 0, 0, 0 };
for (auto& pwr : Abilities::Powers) for (auto& pwr : Abilities::Powers)
if (pwr.skillType == Abilities::SkillTable[110].skillType) if (pwr.skillType == Abilities::SkillTable[110].skillType)
pwr.handle(id, targetData, 110, Abilities::SkillTable[110].durationTime[0], Abilities::SkillTable[110].powerIntensity[0]); pwr.handle(self->id, targetData, 110, Abilities::SkillTable[110].durationTime[0], Abilities::SkillTable[110].powerIntensity[0]);
// clear outlying debuffs // clear outlying debuffs
clearDebuff(this); clearDebuff(self);
} }
void Mob::onCombatStart(EntityRef src) { void MobAI::onCombatStart(CombatNPC* npc, EntityRef src) {
Mob* self = (Mob*)npc;
assert(src.kind == EntityKind::PLAYER); assert(src.kind == EntityKind::PLAYER);
target = src.sock; self->target = src.sock;
nextMovement = getTime(); self->nextMovement = getTime();
nextAttack = 0; self->nextAttack = 0;
roamX = x; self->roamX = self->x;
roamY = y; self->roamY = self->y;
roamZ = z; self->roamZ = self->z;
int skillID = (int)data["m_iPassiveBuff"]; // cast passive int skillID = (int)self->data["m_iPassiveBuff"]; // cast passive
std::vector<int> targetData = { 1, id, 0, 0, 0 }; std::vector<int> targetData = { 1, self->id, 0, 0, 0 };
for (auto& pwr : Abilities::Powers) for (auto& pwr : Abilities::Powers)
if (pwr.skillType == Abilities::SkillTable[skillID].skillType) if (pwr.skillType == Abilities::SkillTable[skillID].skillType)
pwr.handle(id, targetData, skillID, Abilities::SkillTable[skillID].durationTime[0], Abilities::SkillTable[skillID].powerIntensity[0]); pwr.handle(self->id, targetData, skillID, Abilities::SkillTable[skillID].durationTime[0], Abilities::SkillTable[skillID].powerIntensity[0]);
} }
void Mob::onRetreat() { void MobAI::onRetreat(CombatNPC* npc, EntityRef src) {
target = nullptr; Mob* self = (Mob*)npc;
MobAI::clearDebuff(this);
if (groupLeader != 0) self->target = nullptr;
MobAI::groupRetreat(this); MobAI::clearDebuff(self);
if (self->groupLeader != 0)
MobAI::groupRetreat(self);
} }
void Mob::onDeath(EntityRef src) { void MobAI::onDeath(CombatNPC* npc, EntityRef src) {
target = nullptr; Mob* self = (Mob*)npc;
cbf = 0;
skillStyle = -1; self->target = nullptr;
unbuffTimes.clear(); self->cbf = 0;
killedTime = getTime(); // XXX: maybe introduce a shard-global time for each step? self->skillStyle = -1;
self->unbuffTimes.clear();
self->killedTime = getTime(); // XXX: maybe introduce a shard-global time for each step?
// check for the edge case where hitting the mob did not aggro it // check for the edge case where hitting the mob did not aggro it
if (src.kind == EntityKind::PLAYER && src.isValid()) { if (src.kind == EntityKind::PLAYER && src.isValid()) {
@ -787,8 +811,8 @@ void Mob::onDeath(EntityRef src) {
Combat::genQItemRolls(leader, qitemRolls); Combat::genQItemRolls(leader, qitemRolls);
if (plr->groupCnt == 1 && plr->iIDGroup == plr->iID) { if (plr->groupCnt == 1 && plr->iIDGroup == plr->iID) {
Items::giveMobDrop(src.sock, this, rolled, eventRolled); Items::giveMobDrop(src.sock, self, rolled, eventRolled);
Missions::mobKilled(src.sock, type, qitemRolls); Missions::mobKilled(src.sock, self->type, qitemRolls);
} }
else { else {
for (int i = 0; i < leader->groupCnt; i++) { for (int i = 0; i < leader->groupCnt; i++) {
@ -803,21 +827,21 @@ void Mob::onDeath(EntityRef src) {
if (dist > 5000) if (dist > 5000)
continue; continue;
Items::giveMobDrop(sockTo, this, rolled, eventRolled); Items::giveMobDrop(sockTo, self, rolled, eventRolled);
Missions::mobKilled(sockTo, type, qitemRolls); Missions::mobKilled(sockTo, self->type, qitemRolls);
} }
} }
} }
// delay the despawn animation // delay the despawn animation
despawned = false; self->despawned = false;
auto it = Transport::NPCQueues.find(id); auto it = Transport::NPCQueues.find(self->id);
if (it == Transport::NPCQueues.end() || it->second.empty()) if (it == Transport::NPCQueues.end() || it->second.empty())
return; return;
// rewind or empty the movement queue // rewind or empty the movement queue
if (staticPath) { if (self->staticPath) {
/* /*
* This is inelegant, but we wind forward in the path until we find the point that * This is inelegant, but we wind forward in the path until we find the point that
* corresponds with the Mob's spawn point. * corresponds with the Mob's spawn point.
@ -825,12 +849,12 @@ void Mob::onDeath(EntityRef src) {
* IMPORTANT: The check in TableData::loadPaths() must pass or else this will loop forever. * IMPORTANT: The check in TableData::loadPaths() must pass or else this will loop forever.
*/ */
auto& queue = it->second; auto& queue = it->second;
for (auto point = queue.front(); point.x != spawnX || point.y != spawnY; point = queue.front()) { for (auto point = queue.front(); point.x != self->spawnX || point.y != self->spawnY; point = queue.front()) {
queue.pop(); queue.pop();
queue.push(point); queue.push(point);
} }
} }
else { else {
Transport::NPCQueues.erase(id); Transport::NPCQueues.erase(self->id);
} }
} }

36
src/MobAI.hpp
View File

@ -4,6 +4,20 @@
#include "NPCManager.hpp" #include "NPCManager.hpp"
#include "Entities.hpp" #include "Entities.hpp"
/* kill me */
struct Mob;
namespace MobAI {
void deadStep(CombatNPC* self, time_t currTime);
void combatStep(CombatNPC* self, time_t currTime);
void roamingStep(CombatNPC* self, time_t currTime);
void retreatStep(CombatNPC* self, time_t currTime);
void onRoamStart(CombatNPC* self, EntityRef src);
void onCombatStart(CombatNPC* self, EntityRef src);
void onRetreat(CombatNPC* self, EntityRef src);
void onDeath(CombatNPC* self, EntityRef src);
}
struct Mob : public CombatNPC { struct Mob : public CombatNPC {
// general // general
std::unordered_map<int32_t,time_t> unbuffTimes = {}; std::unordered_map<int32_t,time_t> unbuffTimes = {};
@ -61,6 +75,17 @@ struct Mob : public CombatNPC {
hp = maxHealth; hp = maxHealth;
kind = EntityKind::MOB; kind = EntityKind::MOB;
// AI
stateHandlers[AIState::DEAD] = MobAI::deadStep;
stateHandlers[AIState::COMBAT] = MobAI::combatStep;
stateHandlers[AIState::ROAMING] = MobAI::roamingStep;
stateHandlers[AIState::RETREAT] = MobAI::retreatStep;
transitionHandlers[AIState::DEAD] = MobAI::onDeath;
transitionHandlers[AIState::COMBAT] = MobAI::onCombatStart;
transitionHandlers[AIState::ROAMING] = MobAI::onRoamStart;
transitionHandlers[AIState::RETREAT] = MobAI::onRetreat;
} }
// constructor for /summon // constructor for /summon
@ -71,16 +96,7 @@ struct Mob : public CombatNPC {
~Mob() {} ~Mob() {}
virtual void roamingStep(time_t currTime) override; virtual void step(time_t currTime) override;
virtual void combatStep(time_t currTime) override;
virtual void retreatStep(time_t currTime) override;
virtual void deadStep(time_t currTime) override;
virtual void onInactive() override;
virtual void onRoamStart() override;
virtual void onCombatStart(EntityRef src) override;
virtual void onRetreat() override;
virtual void onDeath(EntityRef src) override;
auto operator[](std::string s) { auto operator[](std::string s) {
return data[s]; return data[s];