huge refactoring, chunking added

Makefile

@@ -46,6 +46,7 @@ CXXSRC=\
 	src/settings.cpp\
 	src/TransportManager.cpp\
 	src/TableData.cpp\
+	src/ChunkManager.cpp\
 
 # headers (for timestamp purposes)
 CHDR=\
@@ -81,6 +82,7 @@ CXXHDR=\
 	src/settings.hpp\
 	src/TransportManager.hpp\
 	src/TableData.hpp\
+	src/ChunkManager.hpp\
 
 COBJ=$(CSRC:.c=.o)
 CXXOBJ=$(CXXSRC:.cpp=.o)

src/ChatManager.cpp

@@ -23,16 +23,13 @@ void ChatManager::chatHandler(CNSocket* sock, CNPacketData* data) {
     sock->sendPacket((void*)&resp, P_FE2CL_REP_SEND_FREECHAT_MESSAGE_SUCC, sizeof(sP_FE2CL_REP_SEND_FREECHAT_MESSAGE_SUCC));
 
     // send to visible players
-    for (CNSocket* otherSock : plr.viewable) {
+    PlayerManager::sendToViewable(sock, (void*)&resp, P_FE2CL_REP_SEND_FREECHAT_MESSAGE_SUCC, sizeof(sP_FE2CL_REP_SEND_FREECHAT_MESSAGE_SUCC));
-        otherSock->sendPacket((void*)&resp, P_FE2CL_REP_SEND_FREECHAT_MESSAGE_SUCC, sizeof(sP_FE2CL_REP_SEND_FREECHAT_MESSAGE_SUCC));
-    }
 }
 
 void ChatManager::menuChatHandler(CNSocket* sock, CNPacketData* data) {
     if (data->size != sizeof(sP_CL2FE_REQ_SEND_MENUCHAT_MESSAGE))
         return; // malformed packet
     sP_CL2FE_REQ_SEND_MENUCHAT_MESSAGE* chat = (sP_CL2FE_REQ_SEND_MENUCHAT_MESSAGE*)data->buf;
-    PlayerView& plr = PlayerManager::players[sock];
 
     // send to client
     INITSTRUCT(sP_FE2CL_REP_SEND_MENUCHAT_MESSAGE_SUCC, resp);
@@ -42,9 +39,7 @@ void ChatManager::menuChatHandler(CNSocket* sock, CNPacketData* data) {
     sock->sendPacket((void*)&resp, P_FE2CL_REP_SEND_MENUCHAT_MESSAGE_SUCC, sizeof(sP_FE2CL_REP_SEND_MENUCHAT_MESSAGE_SUCC));
 
     // send to visible players
-    for (CNSocket* otherSock : plr.viewable) {
+    PlayerManager::sendToViewable(sock, (void*)&resp, P_FE2CL_REP_SEND_MENUCHAT_MESSAGE_SUCC, sizeof(sP_FE2CL_REP_SEND_MENUCHAT_MESSAGE_SUCC));
-        otherSock->sendPacket((void*)&resp, P_FE2CL_REP_SEND_MENUCHAT_MESSAGE_SUCC, sizeof(sP_FE2CL_REP_SEND_MENUCHAT_MESSAGE_SUCC));
-    }
 }
 
 void ChatManager::emoteHandler(CNSocket* sock, CNPacketData* data) {
@@ -63,7 +58,5 @@ void ChatManager::emoteHandler(CNSocket* sock, CNPacketData* data) {
     sock->sendPacket((void*)&resp, P_FE2CL_REP_PC_AVATAR_EMOTES_CHAT, sizeof(sP_FE2CL_REP_PC_AVATAR_EMOTES_CHAT));
 
     // send to visible players (players within render distance)
-    for (CNSocket* otherSock : plr.viewable) {
+    PlayerManager::sendToViewable(sock, (void*)&resp, P_FE2CL_REP_PC_AVATAR_EMOTES_CHAT, sizeof(sP_FE2CL_REP_PC_AVATAR_EMOTES_CHAT));
-        otherSock->sendPacket((void*)&resp, P_FE2CL_REP_PC_AVATAR_EMOTES_CHAT, sizeof(sP_FE2CL_REP_PC_AVATAR_EMOTES_CHAT));
-    }
 }

src/ChunkManager.cpp

@@ -0,0 +1,93 @@
+#include "ChunkManager.hpp"
+#include "PlayerManager.hpp"
+#include "NPCManager.hpp"
+#include "settings.hpp"
+
+std::map<std::pair<int, int>, Chunk*> ChunkManager::chunks;
+
+void ChunkManager::init() {} // stubbed
+void ChunkManager::cleanup() {
+    // cleans up all the allocated chunks
+    for (auto& pair : chunks) {
+        delete pair.second;
+    }
+}
+
+void ChunkManager::addNPC(int posX, int posY, int32_t id) {
+    std::pair<int, int> pos = grabChunk(posX, posY);
+
+    // make chunk if it doesn't exist!
+    if (chunks.find(pos) == chunks.end()) {
+        chunks[pos] = new Chunk();
+        chunks[pos]->players = std::set<CNSocket*>();
+        chunks[pos]->NPCs = std::set<int32_t>();
+    }
+
+    Chunk* chunk = chunks[pos];
+
+    chunk->NPCs.insert(id);
+    
+    NPCManager::addNPC(grabChunks(pos.first, pos.second), id);
+}
+
+void ChunkManager::addPlayer(int posX, int posY, CNSocket* sock) {
+    std::pair<int, int> pos = grabChunk(posX, posY);
+
+    // make chunk if it doesn't exist!
+    if (chunks.find(pos) == chunks.end()) {
+        chunks[pos] = new Chunk();
+        chunks[pos]->players = std::set<CNSocket*>();
+        chunks[pos]->NPCs = std::set<int32_t>();
+    }
+
+    Chunk* chunk = chunks[pos];
+
+    chunk->players.insert(sock);
+    
+    // TODO: update view for all players in surrounding chunks
+}
+
+std::pair<int, int> ChunkManager::grabChunk(int posX, int posY) {
+    return std::make_pair<int, int>(posX / (settings::PLAYERDISTANCE / 3), posY / (settings::PLAYERDISTANCE / 3));
+}
+
+std::vector<Chunk*> ChunkManager::grabChunks(int chunkX, int chunkY) {
+    std::vector<Chunk*> delta;
+    delta.reserve(9);
+
+    for (int i = -1; i < 2; i++) {
+        for (int z = -1; z < 2; z++) {
+            std::pair<int, int> pos(chunkX+i, chunkY+z);
+            
+            // if chunk exists, add it to the delta
+            if (chunks.find(pos) != chunks.end()) {
+                delta.push_back(chunks[pos]);
+            }
+        }
+    }
+
+    return delta;
+}
+
+// returns the chunks that aren't shared (only from from)
+std::vector<Chunk*> ChunkManager::getDeltaChunks(std::vector<Chunk*> from, std::vector<Chunk*> to) {
+    std::vector<Chunk*> delta;
+
+    for (Chunk* i : from) {
+        bool found = false;
+
+        // search for it in the other array
+        for (Chunk* z : to) {
+            if (i == z) {
+                found = true;
+                break;
+            }
+        }
+
+        // add it to the vector if we didn't find it!
+        if (!found)
+            delta.push_back(i);
+    }
+
+    return delta;
+}

src/ChunkManager.hpp

@@ -0,0 +1,27 @@
+#pragma once
+
+#include "CNProtocol.hpp"
+
+#include <utility>
+#include <vector>
+#include <set>
+#include <map>
+
+class Chunk {
+public:
+    std::set<CNSocket*> players;
+    std::set<int32_t> NPCs;
+};
+
+namespace ChunkManager {
+    void init();
+    void cleanup();
+
+    extern std::map<std::pair<int, int>, Chunk*> chunks;
+
+    void addNPC(int posX, int posY, int32_t id);
+    void addPlayer(int posX, int posY, CNSocket* sock);
+    std::pair<int, int> grabChunk(int posX, int posY);
+    std::vector<Chunk*> grabChunks(int chunkX, int chunkY);
+    std::vector<Chunk*> getDeltaChunks(std::vector<Chunk*> from, std::vector<Chunk*> to);
+}

src/ItemManager.cpp

@@ -112,9 +112,7 @@ void ItemManager::itemMoveHandler(CNSocket* sock, CNPacketData* data) {
             plr.plr->iPCState = 0;
 
         // send equip event to other players
-        for (CNSocket* otherSock : plr.viewable) {
+        PlayerManager::sendToViewable(sock, (void*)&equipChange, P_FE2CL_PC_EQUIP_CHANGE, sizeof(sP_FE2CL_PC_EQUIP_CHANGE));
-            otherSock->sendPacket((void*)&equipChange, P_FE2CL_PC_EQUIP_CHANGE, sizeof(sP_FE2CL_PC_EQUIP_CHANGE));
-        }
     }
 
     // send response

src/MobManager.cpp

@@ -77,8 +77,7 @@ void MobManager::pcAttackNpcs(CNSocket *sock, CNPacketData *data) {
     resp1->iPC_ID = plr->iID;
 
     // send to other players
-    for (CNSocket *s : PlayerManager::players[sock].viewable)
+    PlayerManager::sendToViewable(sock, (void*)respbuf, P_FE2CL_PC_ATTACK_NPCs, resplen);
-        s->sendPacket((void*)respbuf, P_FE2CL_PC_ATTACK_NPCs, resplen);
 }
 
 void MobManager::combatBegin(CNSocket *sock, CNPacketData *data) {} // stub
@@ -138,15 +137,12 @@ void MobManager::killMob(CNSocket *sock, Mob *mob) {
     giveReward(sock);
     MissionManager::mobKilled(sock, mob->appearanceData.iNPCType);
 
-    PlayerView& plrv = PlayerManager::players[sock];
-
     INITSTRUCT(sP_FE2CL_NPC_EXIT, pkt);
 
     pkt.iNPC_ID = mob->appearanceData.iNPC_ID;
 
     sock->sendPacket(&pkt, P_FE2CL_NPC_EXIT, sizeof(sP_FE2CL_NPC_EXIT));
-    for (CNSocket *s : plrv.viewable)
+    PlayerManager::sendToViewable(sock, (void*)&pkt, P_FE2CL_NPC_EXIT, sizeof(sP_FE2CL_NPC_EXIT));
-        s->sendPacket(&pkt, P_FE2CL_NPC_EXIT, sizeof(sP_FE2CL_NPC_EXIT));
 }
 
 void MobManager::deadStep(Mob *mob, time_t currTime) {

src/NPCManager.cpp

@@ -27,6 +27,34 @@ void NPCManager::init() {
     REGISTER_SHARD_PACKET(P_CL2FE_REQ_PC_VENDOR_BATTERY_BUY, npcVendorBuyBattery);
 }
 
+void NPCManager::addNPC(std::vector<Chunk*> viewableChunks, int32_t id) {
+    BaseNPC* npc = NPCs[id];
+
+    // create struct
+    INITSTRUCT(sP_FE2CL_NPC_ENTER, enterData);
+    enterData.NPCAppearanceData = npc->appearanceData;
+
+    for (Chunk* chunk : viewableChunks) {
+        for (CNSocket* sock : chunk->players) {
+            // send to socket
+            sock->sendPacket((void*)&enterData, P_FE2CL_NPC_ENTER, sizeof(sP_FE2CL_NPC_ENTER));
+        }
+    }
+}
+
+void NPCManager::removeNPC(std::vector<Chunk*> viewableChunks, int32_t id) {
+    // create struct
+    INITSTRUCT(sP_FE2CL_NPC_EXIT, exitData);
+    exitData.iNPC_ID = id;
+
+    for (Chunk* chunk : viewableChunks) {
+        for (CNSocket* sock : chunk->players) {
+            // send to socket
+            sock->sendPacket((void*)&exitData, P_FE2CL_NPC_EXIT, sizeof(sP_FE2CL_NPC_EXIT));
+        }
+    }
+}
+
 void NPCManager::npcVendorBuy(CNSocket* sock, CNPacketData* data) {
     if (data->size != sizeof(sP_CL2FE_REQ_PC_VENDOR_ITEM_BUY))
         return; // malformed packet
@@ -251,64 +279,6 @@ void NPCManager::npcVendorBuyBattery(CNSocket* sock, CNPacketData* data) {
     sock->sendPacket((void*)&resp, P_FE2CL_REP_PC_VENDOR_BATTERY_BUY_SUCC, sizeof(sP_FE2CL_REP_PC_VENDOR_BATTERY_BUY_SUCC));
 }
 
-void NPCManager::updatePlayerNPCS(CNSocket* sock, PlayerView& view) {
-    std::list<int32_t> yesView;
-    std::list<int32_t> noView;
-
-    for (auto& pair : NPCs) {
-        int diffX = abs(view.plr->x - pair.second->appearanceData.iX);
-        int diffY = abs(view.plr->y - pair.second->appearanceData.iY);
-
-        if (diffX < settings::NPCDISTANCE && diffY < settings::NPCDISTANCE) {
-            // if it's a mob and it's dead (or otherwise not there), skip it.
-            if (MobManager::Mobs.find(pair.first) != MobManager::Mobs.end()) {
-                Mob *mob = (Mob*) pair.second;
-                if (mob->state == MobState::DEAD || mob->state == MobState::INACTIVE)
-                    continue;
-            }
-
-            yesView.push_back(pair.first);
-        }
-        else {
-            noView.push_back(pair.first);
-        }
-    }
-
-    INITSTRUCT(sP_FE2CL_NPC_EXIT, exitData);
-    std::list<int32_t>::iterator i = view.viewableNPCs.begin();
-    while (i != view.viewableNPCs.end()) {
-        int32_t id = *i;
-
-        if (std::find(noView.begin(), noView.end(), id) != noView.end()) {
-            // it shouldn't be visible, send NPC_EXIT
-
-            exitData.iNPC_ID = id;
-            sock->sendPacket((void*)&exitData, P_FE2CL_NPC_EXIT, sizeof(sP_FE2CL_NPC_EXIT));
-
-            // remove from view
-            view.viewableNPCs.erase(i++);
-        }
-        else {
-            i++;
-        }
-    }
-
-    INITSTRUCT(sP_FE2CL_NPC_ENTER, enterData);
-    for (int32_t id : yesView) {
-        if (std::find(view.viewableNPCs.begin(), view.viewableNPCs.end(), id) == view.viewableNPCs.end()) {
-            // needs to be added to viewableNPCs! send NPC_ENTER
-
-            enterData.NPCAppearanceData = NPCs[id]->appearanceData;
-            sock->sendPacket((void*)&enterData, P_FE2CL_NPC_ENTER, sizeof(sP_FE2CL_NPC_ENTER));
-
-            // add to viewable
-            view.viewableNPCs.push_back(id);
-        }
-    }
-
-    PlayerManager::players[sock].viewableNPCs = view.viewableNPCs;
-}
-
 void NPCManager::npcBarkHandler(CNSocket* sock, CNPacketData* data) {} // stubbed for now
 
 void NPCManager::npcSummonHandler(CNSocket* sock, CNPacketData* data) {
@@ -330,9 +300,7 @@ void NPCManager::npcSummonHandler(CNSocket* sock, CNPacketData* data) {
     resp.NPCAppearanceData.iY = plr->y;
     resp.NPCAppearanceData.iZ = plr->z;
 
-    sock->sendPacket((void*)&resp, P_FE2CL_NPC_ENTER, sizeof(sP_FE2CL_NPC_ENTER));
+    ChunkManager::addNPC(plr->x, plr->y, resp.NPCAppearanceData.iNPC_ID);
-    for (CNSocket *s : PlayerManager::players[sock].viewable)
-        s->sendPacket((void*)&resp, P_FE2CL_NPC_ENTER, sizeof(sP_FE2CL_NPC_ENTER));
 }
 
 void NPCManager::npcWarpHandler(CNSocket* sock, CNPacketData* data) {
@@ -353,8 +321,8 @@ void NPCManager::npcWarpHandler(CNSocket* sock, CNPacketData* data) {
     resp.iZ = Warps[warpNpc->iWarpID].z;
 
     // force player & NPC reload
-    plrv.viewable.clear();
+    plrv.currentChunks.clear();
-    plrv.viewableNPCs.clear();
+    plrv.chunkPos = std::make_pair<int, int>(0, 0);
 
     sock->sendPacket((void*)&resp, P_FE2CL_REP_PC_WARP_USE_NPC_SUCC, sizeof(sP_FE2CL_REP_PC_WARP_USE_NPC_SUCC));
 }

src/NPCManager.hpp

@@ -20,6 +20,9 @@ namespace NPCManager {
     extern std::vector<WarpLocation> RespawnPoints;
     void init();
 
+    void addNPC(std::vector<Chunk*> viewableChunks, int32_t);
+    void removeNPC(std::vector<Chunk*> viewableChunks, int32_t);
+
     void npcBarkHandler(CNSocket* sock, CNPacketData* data);
     void npcSummonHandler(CNSocket* sock, CNPacketData* data);
     void npcWarpHandler(CNSocket* sock, CNPacketData* data);
@@ -30,6 +33,4 @@ namespace NPCManager {
     void npcVendorSell(CNSocket* sock, CNPacketData* data);
     void npcVendorBuyback(CNSocket* sock, CNPacketData* data);
     void npcVendorBuyBattery(CNSocket* sock, CNPacketData* data);
-
-    void updatePlayerNPCS(CNSocket* sock, PlayerView& plr);
 }

src/NanoManager.cpp

@@ -169,8 +169,7 @@ void NanoManager::addNano(CNSocket* sock, int16_t nanoId, int16_t slot) {
     resp2.iPC_Level = level;
 
     // Update other players' perception of the player's level
-    for (CNSocket* s : PlayerManager::players[sock].viewable)
+    PlayerManager::sendToViewable(sock, (void*)&resp2, P_FE2CL_REP_PC_CHANGE_LEVEL, sizeof(sP_FE2CL_REP_PC_CHANGE_LEVEL));
-        s->sendPacket((void*)&resp2, P_FE2CL_REP_PC_CHANGE_LEVEL, sizeof(sP_FE2CL_REP_PC_CHANGE_LEVEL));
 }
 
 void NanoManager::summonNano(CNSocket *sock, int slot) {
@@ -196,8 +195,7 @@ void NanoManager::summonNano(CNSocket *sock, int slot) {
     else
         pkt1.Nano = plr->Nanos[nanoId];
 
-    for (CNSocket* s : PlayerManager::players[sock].viewable)
+    PlayerManager::sendToViewable(sock, (void*)&pkt1, P_FE2CL_NANO_ACTIVE, sizeof(sP_FE2CL_NANO_ACTIVE));
-        s->sendPacket((void*)&pkt1, P_FE2CL_NANO_ACTIVE, sizeof(sP_FE2CL_NANO_ACTIVE));
 
     // update player
     plr->activeNano = nanoId;

src/PlayerManager.cpp

@@ -43,7 +43,8 @@ void PlayerManager::addPlayer(CNSocket* key, Player plr) {
     memcpy(p, &plr, sizeof(Player));
 
     players[key] = PlayerView();
-    players[key].viewable = std::list<CNSocket*>();
+    players[key].chunkPos = std::make_pair<int, int>(0, 0);
+    players[key].currentChunks = std::vector<Chunk*>();
     players[key].plr = p;
     players[key].lastHeartbeat = 0;
 
@@ -54,88 +55,63 @@ void PlayerManager::addPlayer(CNSocket* key, Player plr) {
 }
 
 void PlayerManager::removePlayer(CNSocket* key) {
-    PlayerView cachedView = players[key];
+    PlayerView& view = players[key];
 
-    // if players have them in their viewable lists, remove it
-    for (auto& pair : players) {
-        if (pair.first == key)
-            continue;
-
-        PlayerView& otherPlayer = pair.second;
-        otherPlayer.viewable.remove(key); // gone
-
-        std::cout << "PlayerId = " << otherPlayer.plr->iID << " removed from " << otherPlayer.plr->iID << "'s viewable list" << std::endl;
-
-        // now send PC_EXIT packet
     INITSTRUCT(sP_FE2CL_PC_EXIT, exitPacket);
     exitPacket.iID = players[key].plr->iID;
 
-        pair.first->sendPacket((void*)&exitPacket, P_FE2CL_PC_EXIT, sizeof(sP_FE2CL_PC_EXIT));
+    // remove players from all chunks
-    }
+    removePlayerFromChunks(view.currentChunks, key);
 
-    std::cout << U16toU8(cachedView.plr->PCStyle.szFirstName) << " " << U16toU8(cachedView.plr->PCStyle.szLastName) << " (PlayerId = " << key->plr->iID << ") has left!" << std::endl;
+    // remove from chunk
+    if (ChunkManager::chunks.find(view.chunkPos) != ChunkManager::chunks.end())
+        ChunkManager::chunks[view.chunkPos]->players.erase(key);
+
+    std::cout << U16toU8(view.plr->PCStyle.szFirstName) << " " << U16toU8(view.plr->PCStyle.szLastName) << " (PlayerId = " << view.plr->iID << ") has left!" << std::endl;
 
     key->plr = nullptr;
-    delete cachedView.plr;
+    delete view.plr;
     players.erase(key);
 
     std::cout << players.size() << " players" << std::endl;
 }
 
-void PlayerManager::updatePlayerPosition(CNSocket* sock, int X, int Y, int Z, int angle) {
+void PlayerManager::removePlayerFromChunks(std::vector<Chunk*> chunks, CNSocket* sock) {
-    players[sock].plr->angle = angle;
+    INITSTRUCT(sP_FE2CL_NPC_EXIT, exitData);
-    updatePlayerPosition(sock, X, Y, Z);
+    INITSTRUCT(sP_FE2CL_PC_EXIT, exitPlayer);
+
+    // for chunks that need the player to be removed from
+    for (Chunk* chunk : chunks) {
+
+        // remove NPCs
+        for (int32_t id : chunk->NPCs) {
+            exitData.iNPC_ID = id;
+            sock->sendPacket((void*)&exitData, P_FE2CL_NPC_EXIT, sizeof(sP_FE2CL_NPC_EXIT));
         }
-void PlayerManager::updatePlayerPosition(CNSocket* sock, int X, int Y, int Z) {
-    players[sock].plr->x = X;
-    players[sock].plr->y = Y;
-    players[sock].plr->z = Z;
 
-    std::vector<CNSocket*> noView;
+        // remove players from eachother
-    std::vector<CNSocket*> yesView;
+        for (CNSocket* otherSock : chunk->players) {
-
+            exitPlayer.iID = players[sock].plr->iID;
-    // TODO: oh god this is sooooo perfomance heavy the more players you have
+            otherSock->sendPacket((void*)&exitPlayer, P_FE2CL_PC_EXIT, sizeof(sP_FE2CL_PC_EXIT));
-    for (auto pair : players) {
+            exitPlayer.iID = players[otherSock].plr->iID;
-        if (pair.first == sock)
+            sock->sendPacket((void*)&exitPlayer, P_FE2CL_PC_EXIT, sizeof(sP_FE2CL_PC_EXIT));
-            continue; // ignore our own connection
-
-        int diffX = abs(pair.second.plr->x - X); // the map is like a grid, X and Y are your position on the map, Z is the height. very different from other games...
-        int diffY = abs(pair.second.plr->y - Y);
-
-        if (diffX < settings::PLAYERDISTANCE && diffY < settings::PLAYERDISTANCE) {
-            yesView.push_back(pair.first);
         }
-        else {
-            noView.push_back(pair.first);
     }
 }
 
-    INITSTRUCT(sP_FE2CL_PC_EXIT, exitPacket);
+void PlayerManager::addPlayerToChunks(std::vector<Chunk*> chunks, CNSocket* sock) {
-    std::list<CNSocket*>::iterator i = players[sock].viewable.begin();
+    INITSTRUCT(sP_FE2CL_NPC_ENTER, enterData);
-    while (i != players[sock].viewable.end()) {
-        CNSocket* otherSock = *i;
-        if (std::find(noView.begin(), noView.end(), otherSock) != noView.end()) {
-
-            // sock shouldn't be visible, send PC_EXIT packet
-            exitPacket.iID = players[sock].plr->iID;
-            otherSock->sendPacket((void*)&exitPacket, P_FE2CL_PC_EXIT, sizeof(sP_FE2CL_PC_EXIT));
-            exitPacket.iID = players[otherSock].plr->iID;
-            sock->sendPacket((void*)&exitPacket, P_FE2CL_PC_EXIT, sizeof(sP_FE2CL_PC_EXIT));
-
-            // remove them from the viewable list
-            players[sock].viewable.erase(i++);
-            players[otherSock].viewable.remove(sock);
-            continue;
-        }
-
-        ++i;
-    }
-
     INITSTRUCT(sP_FE2CL_PC_NEW, newPlayer);
-    for (CNSocket* otherSock : yesView) {
-        if (std::find(players[sock].viewable.begin(), players[sock].viewable.end(), otherSock) == players[sock].viewable.end()) {
-            // this needs to be added to the viewable players, send PC_ENTER
 
+    for (Chunk* chunk : chunks) {
+        // add npcs
+        for (int32_t id : chunk->NPCs) {
+            enterData.NPCAppearanceData = NPCManager::NPCs[id]->appearanceData;
+            sock->sendPacket((void*)&enterData, P_FE2CL_NPC_ENTER, sizeof(sP_FE2CL_NPC_ENTER));
+        }
+
+        // add players
+        for (CNSocket* otherSock : chunk->players) {
             Player *otherPlr = players[otherSock].plr;
             Player *plr = players[sock].plr;
 
@@ -166,28 +142,43 @@ void PlayerManager::updatePlayerPosition(CNSocket* sock, int X, int Y, int Z) {
             memcpy(newPlayer.PCAppearanceData.ItemEquip, otherPlr->Equip, sizeof(sItemBase) * AEQUIP_COUNT);
 
             sock->sendPacket((void*)&newPlayer, P_FE2CL_PC_NEW, sizeof(sP_FE2CL_PC_NEW));
-
+        }
-            players[sock].viewable.push_back(otherSock);
-            players[otherSock].viewable.push_back(sock);
     }
 }
 
-    NPCManager::updatePlayerNPCS(sock, players[sock]);
+void PlayerManager::updatePlayerPosition(CNSocket* sock, int X, int Y, int Z, int angle) {
+    players[sock].plr->angle = angle;
+    updatePlayerPosition(sock, X, Y, Z);
 }
 
+void PlayerManager::updatePlayerPosition(CNSocket* sock, int X, int Y, int Z) {
+    PlayerView& view = players[sock];
+    view.plr->x = X;
+    view.plr->y = Y;
+    view.plr->z = Z;
 
-std::list<CNSocket*> PlayerManager::getNearbyPlayers(int x, int y, int dist) {
+    std::pair<int, int> newPos = ChunkManager::grabChunk(X, Y);
-    std::list<CNSocket*> plrs;
 
-    for (auto pair : players) {
+    // nothing to be done
-        int diffX = abs(pair.second.plr->x - x);
+    if (newPos == view.chunkPos) 
-        int diffY = abs(pair.second.plr->x - x);
+        return;
 
-        if (diffX < dist && diffY < dist)
+    // add player to chunk
-            plrs.push_back(pair.first);
+    std::vector<Chunk*> allChunks = ChunkManager::grabChunks(newPos.first, newPos.second);
-    }
 
-    return plrs;
+    // first, remove all the old npcs & players from the old chunks
+    removePlayerFromChunks(ChunkManager::getDeltaChunks(view.currentChunks, allChunks), sock);
+
+    // now, add all the new npcs & players!
+    addPlayerToChunks(ChunkManager::getDeltaChunks(allChunks, view.currentChunks), sock);
+
+    // remove us from that old stinky chunk (+ a sanity check)
+    if (ChunkManager::chunks.find(view.chunkPos) != ChunkManager::chunks.end())
+        ChunkManager::chunks[view.chunkPos]->players.erase(sock);
+    
+    ChunkManager::addPlayer(X, Y, sock); // takes care of adding the player to the chunk if it exists or not
+    view.chunkPos = newPos;
+    view.currentChunks = allChunks;
 }
 
 void PlayerManager::enterPlayer(CNSocket* sock, CNPacketData* data) {
@@ -267,6 +258,17 @@ void PlayerManager::enterPlayer(CNSocket* sock, CNPacketData* data) {
     addPlayer(sock, plr);
 }
 
+void PlayerManager::sendToViewable(CNSocket* sock, void* buf, uint32_t type, size_t size) {
+    for (Chunk* chunk : players[sock].currentChunks) {
+        for (CNSocket* otherSock : chunk->players) {
+            if (otherSock == sock)
+                continue;
+            
+            otherSock->sendPacket(buf, type, size);
+        }
+    }
+}
+
 void PlayerManager::loadPlayer(CNSocket* sock, CNPacketData* data) {
     if (data->size != sizeof(sP_CL2FE_REQ_PC_LOADING_COMPLETE))
         return; // ignore the malformed packet
@@ -315,9 +317,7 @@ void PlayerManager::movePlayer(CNSocket* sock, CNPacketData* data) {
     moveResponse.iCliTime = moveData->iCliTime; // maybe don't send this??? seems unneeded...
     moveResponse.iSvrTime = tm;
 
-    for (CNSocket* otherSock : players[sock].viewable) {
+    sendToViewable(sock, (void*)&moveResponse, P_FE2CL_PC_MOVE, sizeof(sP_FE2CL_PC_MOVE));
-        otherSock->sendPacket((void*)&moveResponse, P_FE2CL_PC_MOVE, sizeof(sP_FE2CL_PC_MOVE));
-    }
 }
 
 void PlayerManager::stopPlayer(CNSocket* sock, CNPacketData* data) {
@@ -340,9 +340,7 @@ void PlayerManager::stopPlayer(CNSocket* sock, CNPacketData* data) {
     stopResponse.iCliTime = stopData->iCliTime; // maybe don't send this??? seems unneeded...
     stopResponse.iSvrTime = tm;
 
-    for (CNSocket* otherSock : players[sock].viewable) {
+    sendToViewable(sock, (void*)&stopResponse, P_FE2CL_PC_STOP, sizeof(sP_FE2CL_PC_STOP));
-        otherSock->sendPacket((void*)&stopResponse, P_FE2CL_PC_STOP, sizeof(sP_FE2CL_PC_STOP));
-    }
 }
 
 void PlayerManager::jumpPlayer(CNSocket* sock, CNPacketData* data) {
@@ -371,9 +369,7 @@ void PlayerManager::jumpPlayer(CNSocket* sock, CNPacketData* data) {
     jumpResponse.iCliTime = jumpData->iCliTime; // maybe don't send this??? seems unneeded...
     jumpResponse.iSvrTime = tm;
 
-    for (CNSocket* otherSock : players[sock].viewable) {
+    sendToViewable(sock, (void*)&jumpResponse, P_FE2CL_PC_JUMP, sizeof(sP_FE2CL_PC_JUMP));
-        otherSock->sendPacket((void*)&jumpResponse, P_FE2CL_PC_JUMP, sizeof(sP_FE2CL_PC_JUMP));
-    }
 }
 
 void PlayerManager::jumppadPlayer(CNSocket* sock, CNPacketData* data) {
@@ -400,9 +396,7 @@ void PlayerManager::jumppadPlayer(CNSocket* sock, CNPacketData* data) {
     jumppadResponse.iCliTime = jumppadData->iCliTime;
     jumppadResponse.iSvrTime = tm;
 
-    for (CNSocket* otherSock : players[sock].viewable) {
+    sendToViewable(sock, (void*)&jumppadResponse, P_FE2CL_PC_JUMPPAD, sizeof(sP_FE2CL_PC_JUMPPAD));
-        otherSock->sendPacket((void*)&jumppadResponse, P_FE2CL_PC_JUMPPAD, sizeof(sP_FE2CL_PC_JUMPPAD));
-    }
 }
 
 void PlayerManager::launchPlayer(CNSocket* sock, CNPacketData* data) {
@@ -430,9 +424,7 @@ void PlayerManager::launchPlayer(CNSocket* sock, CNPacketData* data) {
     launchResponse.iCliTime = launchData->iCliTime;
     launchResponse.iSvrTime = tm;
 
-    for (CNSocket* otherSock : players[sock].viewable) {
+    sendToViewable(sock, (void*)&launchResponse, P_FE2CL_PC_LAUNCHER, sizeof(sP_FE2CL_PC_LAUNCHER));
-        otherSock->sendPacket((void*)&launchResponse, P_FE2CL_PC_LAUNCHER, sizeof(sP_FE2CL_PC_LAUNCHER));
-    }
 }
 
 void PlayerManager::ziplinePlayer(CNSocket* sock, CNPacketData* data) {
@@ -467,9 +459,7 @@ void PlayerManager::ziplinePlayer(CNSocket* sock, CNPacketData* data) {
     ziplineResponse.iRollMax = ziplineData->iRollMax;
     ziplineResponse.iRoll = ziplineData->iRoll;
 
-    for (CNSocket* otherSock : players[sock].viewable) {
+    sendToViewable(sock, (void*)&ziplineResponse, P_FE2CL_PC_ZIPLINE, sizeof(sP_FE2CL_PC_ZIPLINE));
-        otherSock->sendPacket((void*)&ziplineResponse, P_FE2CL_PC_ZIPLINE, sizeof(sP_FE2CL_PC_ZIPLINE));
-    }
 }
 
 void PlayerManager::movePlatformPlayer(CNSocket* sock, CNPacketData* data) {
@@ -501,9 +491,7 @@ void PlayerManager::movePlatformPlayer(CNSocket* sock, CNPacketData* data) {
     platResponse.cKeyValue = platformData->cKeyValue;
     platResponse.iPlatformID = platformData->iPlatformID;
 
-    for (CNSocket* otherSock : players[sock].viewable) {
+    sendToViewable(sock, (void*)&platResponse, P_FE2CL_PC_MOVEPLATFORM, sizeof(sP_FE2CL_PC_MOVEPLATFORM));
-        otherSock->sendPacket((void*)&platResponse, P_FE2CL_PC_MOVEPLATFORM, sizeof(sP_FE2CL_PC_MOVEPLATFORM));
-    }
 }
 
 void PlayerManager::moveSlopePlayer(CNSocket* sock, CNPacketData* data) {
@@ -531,9 +519,7 @@ void PlayerManager::moveSlopePlayer(CNSocket* sock, CNPacketData* data) {
     slopeResponse.cKeyValue = slopeData->cKeyValue;
     slopeResponse.iSlopeID = slopeData->iSlopeID;
 
-    for (CNSocket* otherSock : players[sock].viewable) {
+    sendToViewable(sock, (void*)&slopeResponse, P_FE2CL_PC_SLOPE, sizeof(sP_FE2CL_PC_SLOPE));
-        otherSock->sendPacket((void*)&slopeResponse, P_FE2CL_PC_SLOPE, sizeof(sP_FE2CL_PC_SLOPE));
-    }
 }
 
 void PlayerManager::gotoPlayer(CNSocket* sock, CNPacketData* data) {
@@ -556,8 +542,8 @@ void PlayerManager::gotoPlayer(CNSocket* sock, CNPacketData* data) {
     response.iZ = plrv.plr->z = gotoData->iToZ;
 
     // force player & NPC reload
-    plrv.viewable.clear();
+    plrv.chunkPos = std::make_pair<int, int>(0, 0);
-    plrv.viewableNPCs.clear();
+    plrv.currentChunks.clear();
 
     sock->sendPacket((void*)&response, P_FE2CL_REP_PC_GOTO_SUCC, sizeof(sP_FE2CL_REP_PC_GOTO_SUCC));
 }
@@ -668,12 +654,10 @@ void PlayerManager::revivePlayer(CNSocket* sock, CNPacketData* data) {
     resp2.PCRegenDataForOtherPC.iAngle = plr->angle;
     resp2.PCRegenDataForOtherPC.Nano = plr->Nanos[plr->activeNano];
 
-    for (CNSocket *s : players[sock].viewable)
+    sendToViewable(sock, (void*)&resp2, P_FE2CL_PC_REGEN, sizeof(sP_FE2CL_PC_REGEN));
-        s->sendPacket((void*)&resp2, P_FE2CL_PC_REGEN, sizeof(sP_FE2CL_PC_REGEN));
 }
 
 void PlayerManager::enterPlayerVehicle(CNSocket* sock, CNPacketData* data) {
-
     PlayerView& plr = PlayerManager::players[sock];
 
     if (plr.plr->Equip[8].iID > 0) {
@@ -686,10 +670,11 @@ void PlayerManager::enterPlayerVehicle(CNSocket* sock, CNPacketData* data) {
         response2.iPC_ID = plr.plr->iID;
         response2.iState = 8;
 
-        for (CNSocket* otherSock : plr.viewable) {
+        for (Chunk* chunk : players[sock].currentChunks) {
+            for (CNSocket* otherSock : chunk->players) {
                 otherSock->sendPacket((void*)&response2, P_FE2CL_PC_STATE_CHANGE, sizeof(sP_FE2CL_PC_STATE_CHANGE));
             }
-
+        }
     } else {
         INITSTRUCT(sP_FE2CL_PC_VEHICLE_ON_FAIL, response);
         sock->sendPacket((void*)&response, P_FE2CL_PC_VEHICLE_ON_FAIL, sizeof(sP_FE2CL_PC_VEHICLE_ON_FAIL));
@@ -709,9 +694,7 @@ void PlayerManager::exitPlayerVehicle(CNSocket* sock, CNPacketData* data) {
     response2.iPC_ID = plr.plr->iID;
     response2.iState = 0;
 
-    for (CNSocket* otherSock : plr.viewable) {
+    sendToViewable(sock, (void*)&response2, P_FE2CL_PC_STATE_CHANGE, sizeof(sP_FE2CL_PC_STATE_CHANGE));
-        otherSock->sendPacket((void*)&response2, P_FE2CL_PC_STATE_CHANGE, sizeof(sP_FE2CL_PC_STATE_CHANGE));
-    }
 }
 
 void PlayerManager::setSpecialSwitchPlayer(CNSocket* sock, CNPacketData* data) {

src/PlayerManager.hpp

@@ -4,15 +4,17 @@
 #include "CNProtocol.hpp"
 #include "CNStructs.hpp"
 #include "CNShardServer.hpp"
+#include "ChunkManager.hpp"
 
+#include <utility>
 #include <map>
 #include <list>
 
 struct WarpLocation;
 
 struct PlayerView {
-    std::list<CNSocket*> viewable;
+    std::pair<int, int> chunkPos;
-    std::list<int32_t> viewableNPCs;
+    std::vector<Chunk*> currentChunks;
     Player *plr;
     time_t lastHeartbeat;
 };
@@ -25,9 +27,13 @@ namespace PlayerManager {
     void addPlayer(CNSocket* key, Player plr);
     void removePlayer(CNSocket* key);
 
+    void removePlayerFromChunks(std::vector<Chunk*> chunks, CNSocket* sock);
+    void addPlayerToChunks(std::vector<Chunk*> chunks, CNSocket* sock);
+
     void updatePlayerPosition(CNSocket* sock, int X, int Y, int Z);
     void updatePlayerPosition(CNSocket* sock, int X, int Y, int Z, int angle);
-    std::list<CNSocket*> getNearbyPlayers(int X, int Y, int dist);
+
+    void sendToViewable(CNSocket* sock, void* buf, uint32_t type, size_t size);
 
     void enterPlayer(CNSocket* sock, CNPacketData* data);
     void loadPlayer(CNSocket* sock, CNPacketData* data);

src/TableData.cpp

@@ -5,6 +5,7 @@
 #include "settings.hpp"
 #include "MissionManager.hpp"
 #include "MobManager.hpp"
+#include "ChunkManager.hpp"
 
 #include "contrib/JSON.hpp"
 
@@ -27,9 +28,10 @@ void TableData::init() {
 
             // Temporary fix, IDs will be pulled from json later
             tmp->appearanceData.iNPC_ID = i;
-            i++;
 
-            NPCManager::NPCs[tmp->appearanceData.iNPC_ID] = tmp;
+            NPCManager::NPCs[i] = tmp;
+            ChunkManager::addNPC(npc["x"], npc["y"], i);
+            i++;
 
             if (npc["id"] == 641 || npc["id"] == 642)
                 NPCManager::RespawnPoints.push_back({ npc["x"], npc["y"], ((int)npc["z"]) + RESURRECT_HEIGHT });
@@ -153,6 +155,7 @@ void TableData::init() {
 
             NPCManager::NPCs[i] = tmp;
             MobManager::Mobs[i] = (Mob*)NPCManager::NPCs[i];
+            ChunkManager::addNPC(npc["iX"], npc["iY"], i);
 
             i++;
         }

src/TransportManager.cpp

@@ -137,8 +137,8 @@ void TransportManager::transportWarpHandler(CNSocket* sock, CNPacketData* data)
      * same map tile you were already in, but we might as well force an NPC reload.
      */
     PlayerView& plrv = PlayerManager::players[sock];
-    plrv.viewable.clear();
+    plrv.currentChunks.clear();
-    plrv.viewableNPCs.clear();
+    plrv.chunkPos = std::make_pair<int, int>(0, 0);
 
     sock->sendPacket((void*)&resp, P_FE2CL_REP_PC_WARP_USE_TRANSPORTATION_SUCC, sizeof(sP_FE2CL_REP_PC_WARP_USE_TRANSPORTATION_SUCC));
 }

src/main.cpp

@@ -10,6 +10,7 @@
 #include "TransportManager.hpp"
 #include "Database.hpp"
 #include "TableData.hpp"
+#include "ChunkManager.hpp"
 
 #include "settings.hpp"
 
@@ -48,9 +49,8 @@ void terminate(int arg) {
         shardThread->join();
     }
 
-#if defined(__SANITIZE_ADDRESS__)
     TableData::cleanup();
-#endif
+    ChunkManager::cleanup();
 
     exit(0);
 }