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https://github.com/OpenFusionProject/OpenFusion.git
synced 2024-11-04 22:40:05 +00:00
Lerp mob movement a little.
We'll lerp a little harder later. Also retreat if kited too far.
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1f18104a6f
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@ -73,7 +73,7 @@ void MobManager::pcAttackNpcs(CNSocket *sock, CNPacketData *data) {
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mob->target = sock;
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mob->state = MobState::COMBAT;
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mob->nextMovement = getTime();
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std::cout << "combat state\n";
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//std::cout << "combat state\n";
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}
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mob->appearanceData.iHP -= 100;
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@ -131,7 +131,7 @@ void MobManager::npcAttackPc(Mob *mob) {
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if (plr->HP <= 0) {
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mob->target = nullptr;
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mob->state = MobState::RETREAT;
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std::cout << "retreat state\n";
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//std::cout << "retreat state\n";
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}
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}
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@ -190,7 +190,7 @@ void MobManager::killMob(CNSocket *sock, Mob *mob) {
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mob->appearanceData.iConditionBitFlag = 0;
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mob->killedTime = getTime(); // XXX: maybe introduce a shard-global time for each step?
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std::cout << "dead state mob " << mob->appearanceData.iNPC_ID << std::endl;
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//std::cout << "dead state mob " << mob->appearanceData.iNPC_ID << std::endl;
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giveReward(sock);
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MissionManager::mobKilled(sock, mob->appearanceData.iNPCType);
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@ -224,7 +224,7 @@ void MobManager::deadStep(Mob *mob, time_t currTime) {
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mob->appearanceData.iHP = mob->maxHealth;
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mob->state = MobState::ROAMING;
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std::cout << "roaming state\n";
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//std::cout << "roaming state\n";
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INITSTRUCT(sP_FE2CL_NPC_NEW, pkt);
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@ -245,7 +245,7 @@ void MobManager::combatStep(Mob *mob, time_t currTime) {
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if (PlayerManager::players.find(mob->target) == PlayerManager::players.end()) {
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mob->target = nullptr;
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mob->state = MobState::RETREAT;
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std::cout << "RETREAT state\n";
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//std::cout << "RETREAT state\n";
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return;
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}
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Player *plr = PlayerManager::getPlayer(mob->target);
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@ -261,7 +261,7 @@ void MobManager::combatStep(Mob *mob, time_t currTime) {
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* No, I'm not 100% sure this is how it's supposed to work.
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*/
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if (distance <= (int)mob->data["m_iAtkRange"]) {
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std::cout << "attack logic\n";
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//std::cout << "attack logic\n";
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// attack logic
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if (mob->nextAttack == 0) {
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mob->nextAttack = currTime + (int)mob->data["m_iInitalTime"] * 100; // I *think* this is what this is
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@ -271,20 +271,28 @@ void MobManager::combatStep(Mob *mob, time_t currTime) {
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npcAttackPc(mob);
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}
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} else {
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std::cout << "movement logic\n";
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std::cout << "distance: " << distance << " attack range: " << mob->data["m_iAtkRange"] << std::endl;
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//std::cout << "movement logic\n";
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//std::cout << "distance: " << distance << " attack range: " << mob->data["m_iAtkRange"] << std::endl;
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// movement logic
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if (mob->nextMovement != 0 && currTime < mob->nextMovement)
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return;
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mob->nextMovement = currTime + (int)mob->data["m_iDelayTime"] * 100;
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int speed = mob->data["m_iRunSpeed"];
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// halve movement speed if snared
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if (mob->appearanceData.iConditionBitFlag & CSB_BIT_DN_MOVE_SPEED)
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speed /= 2;
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auto targ = lerp(mob->appearanceData.iX, mob->appearanceData.iY, mob->target->plr->x, mob->target->plr->y, speed);
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INITSTRUCT(sP_FE2CL_NPC_MOVE, pkt);
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pkt.iNPC_ID = mob->appearanceData.iNPC_ID;
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pkt.iSpeed = mob->data["m_iWalkSpeed"];
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pkt.iToX = mob->appearanceData.iX = mob->target->plr->x; // FIXME: lerping
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pkt.iToY = mob->appearanceData.iY = mob->target->plr->y;
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pkt.iToZ = mob->appearanceData.iZ = mob->target->plr->z;
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pkt.iSpeed = speed;
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pkt.iToX = mob->appearanceData.iX = targ.first;
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pkt.iToY = mob->appearanceData.iY = targ.second;
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pkt.iToZ = mob->appearanceData.iZ;
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auto chunk = ChunkManager::grabChunk(mob->appearanceData.iX, mob->appearanceData.iY);
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auto chunks = ChunkManager::grabChunks(chunk);
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@ -297,10 +305,26 @@ void MobManager::combatStep(Mob *mob, time_t currTime) {
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}
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}
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// TODO: retreat if kited too far
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// retreat if kited too far
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distance = hypot(mob->appearanceData.iX - mob->spawnX, mob->appearanceData.iY - mob->spawnY);
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if (distance >= mob->data["m_iCombatRange"]) {
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mob->target = nullptr;
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mob->state = MobState::RETREAT;
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//std::cout << "retreat state\n";
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}
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}
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/*
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* TODO: precalculate a path, lerp through it, repeat.
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* The way it works right now, mobs only move around a little bit. This will result
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* in more natural movement, and will mesh well with pre-calculated paths (for Don Doom,
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* Bad Max, etc.) once those have been made.
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*/
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void MobManager::roamingStep(Mob *mob, time_t currTime) {
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// some mobs don't move (and we mustn't divide/modulus by zero)
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if (mob->idleRange == 0)
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return;
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if (mob->nextMovement != 0 && currTime < mob->nextMovement)
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return;
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@ -315,18 +339,21 @@ void MobManager::roamingStep(Mob *mob, time_t currTime) {
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int xStart = mob->spawnX - mob->idleRange/2;
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int yStart = mob->spawnY - mob->idleRange/2;
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pkt.iNPC_ID = mob->appearanceData.iNPC_ID;
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pkt.iSpeed = mob->data["m_iWalkSpeed"];
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pkt.iToX = mob->appearanceData.iX = xStart + rand() % mob->idleRange;
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pkt.iToY = mob->appearanceData.iY = yStart + rand() % mob->idleRange;
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pkt.iToZ = mob->appearanceData.iZ;
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int farX = xStart + rand() % mob->idleRange;
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int farY = yStart + rand() % mob->idleRange;
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int speed = mob->data["m_iWalkSpeed"];
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// roughly halve movement speed if snared
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// TODO: this logic isn't quite right yet, since they still get to the same spot
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if (mob->appearanceData.iConditionBitFlag & CSB_BIT_DN_MOVE_SPEED) {
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mob->nextMovement += delay;
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pkt.iSpeed /= 2;
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}
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// halve movement speed if snared
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if (mob->appearanceData.iConditionBitFlag & CSB_BIT_DN_MOVE_SPEED)
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speed /= 2;
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auto targ = lerp(mob->appearanceData.iX, mob->appearanceData.iY, farX, farY, speed);
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pkt.iNPC_ID = mob->appearanceData.iNPC_ID;
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pkt.iSpeed = speed;
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pkt.iToX = mob->appearanceData.iX = targ.first;
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pkt.iToY = mob->appearanceData.iY = targ.second;
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pkt.iToZ = mob->appearanceData.iZ;
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auto chunk = ChunkManager::grabChunk(mob->appearanceData.iX, mob->appearanceData.iY);
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auto chunks = ChunkManager::grabChunks(chunk);
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@ -349,10 +376,12 @@ void MobManager::retreatStep(Mob *mob, time_t currTime) {
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auto chunk = ChunkManager::grabChunk(mob->appearanceData.iX, mob->appearanceData.iY);
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auto chunks = ChunkManager::grabChunks(chunk);
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auto targ = lerp(mob->appearanceData.iX, mob->appearanceData.iY, mob->spawnX, mob->spawnY, mob->data["m_iRunSpeed"]);
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pkt.iNPC_ID = mob->appearanceData.iNPC_ID;
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pkt.iSpeed = mob->data["m_iWalkSpeed"];
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pkt.iToX = mob->appearanceData.iX = mob->spawnX;
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pkt.iToY = mob->appearanceData.iY = mob->spawnY;
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pkt.iSpeed = mob->data["m_iRunSpeed"];
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pkt.iToX = mob->appearanceData.iX = targ.first;
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pkt.iToY = mob->appearanceData.iY = targ.second;
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pkt.iToZ = mob->appearanceData.iZ;
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// notify all nearby players
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@ -366,7 +395,7 @@ void MobManager::retreatStep(Mob *mob, time_t currTime) {
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// if we got there
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if (distance <= mob->data["m_iIdleRange"]) {
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mob->state = MobState::ROAMING;
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std::cout << "roaming state\n";
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//std::cout << "roaming state\n";
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mob->appearanceData.iHP = mob->maxHealth;
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mob->killedTime = 0;
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mob->nextAttack = 0;
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@ -388,6 +417,9 @@ void MobManager::step(CNServer *serv, time_t currTime) {
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continue;
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switch (pair.second->state) {
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case MobState::INACTIVE:
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// no-op
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break;
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case MobState::ROAMING:
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roamingStep(pair.second, currTime);
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break;
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@ -400,9 +432,24 @@ void MobManager::step(CNServer *serv, time_t currTime) {
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case MobState::DEAD:
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deadStep(pair.second, currTime);
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break;
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default:
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// unhandled for now
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break;
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}
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}
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}
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/*
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* Dynamic lerp; distinct from TransportManager::lerp(). This one doesn't care about height and
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* only returns the first step, since the rest will need to be recalculated anyway if chasing player.
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*/
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std::pair<int,int> MobManager::lerp(int x1, int y1, int x2, int y2, int speed) {
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std::pair<int,int> ret = {};
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int distance = hypot(x1 - x2, y1 - y2);
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int lerps = distance / speed;
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// interpolate only the first point
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float frac = 1.0f / (lerps+1);
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ret.first = (x1 * (1.0f - frac)) + (x2 * frac);
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ret.second = (y1 * (1.0f - frac)) + (y2 * frac);
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return ret;
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}
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@ -27,7 +27,7 @@ struct Mob : public BaseNPC {
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// dead
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time_t killedTime = 0;
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int regenTime;
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time_t regenTime;
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bool despawned = false; // for the sake of death animations
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// roaming
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@ -85,4 +85,5 @@ namespace MobManager {
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void npcAttackPc(Mob *mob);
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void killMob(CNSocket *sock, Mob *mob);
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void giveReward(CNSocket *sock);
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std::pair<int,int> lerp(int, int, int, int, int);
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}
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