implemented more of the /lib/

src/net/citizensnpcs/npc/CitizensNPC.java

@@ -146,7 +146,7 @@ public class CitizensNPC implements NPC {
 			return;
 		}
 		addTrait(new LocationTrait(loc));
-		mcEntity = manager.spawn(this);
+		mcEntity = manager.spawn(this, loc);
 	}
 
 	@Override

src/net/citizensnpcs/npc/CitizensNPCManager.java

@@ -97,8 +97,7 @@ public class CitizensNPCManager implements NPCManager {
 		return count;
 	}
 
-	public CraftNPC spawn(NPC npc) {
-		Location loc = ((LocationTrait) npc.getTrait("location")).getLocation();
+	public CraftNPC spawn(NPC npc, Location loc) {
 		WorldServer ws = getWorldServer(loc.getWorld());
 		CraftNPC mcEntity = new CraftNPC(getMinecraftServer(ws.getServer()), ws, npc.getFullName(),
 				new ItemInWorldManager(ws));
@@ -112,12 +111,14 @@ public class CitizensNPCManager implements NPCManager {
 
 	public void despawn(NPC npc) {
 		CraftNPC mcEntity = ((CitizensNPC) npc).getHandle();
+		// TODO send Packet29DestroyEntity
 		getWorldServer(((LocationTrait) npc.getTrait("location")).getLocation().getWorld()).removeEntity(mcEntity);
 		spawned.remove(mcEntity.getPlayer());
 	}
 
 	public void remove(NPC npc) {
-		despawn(npc);
+		if (spawned.containsKey(((CitizensNPC) npc).getHandle()))
+			despawn(npc);
 		byID.remove(npc.getId());
 	}
 

src/net/citizensnpcs/resources/lib/CraftNPC.java

@@ -1,13 +1,35 @@
 package net.citizensnpcs.resources.lib;
 
+import java.io.IOException;
+
 import net.minecraft.server.EntityPlayer;
 import net.minecraft.server.ItemInWorldManager;
 import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.NetHandler;
+import net.minecraft.server.NetworkManager;
 import net.minecraft.server.World;
 
 public class CraftNPC extends EntityPlayer {
 
 	public CraftNPC(MinecraftServer minecraftserver, World world, String s, ItemInWorldManager iteminworldmanager) {
 		super(minecraftserver, world, s, iteminworldmanager);
+		iteminworldmanager.setGameMode(0);
+
+		NPCSocket socket = new NPCSocket();
+
+		NetworkManager netMgr = new NPCNetworkManager(socket, "npc mgr", new NetHandler() {
+			@Override
+			public boolean c() {
+				return false;
+			}
+		});
+		this.netServerHandler = new NPCNetHandler(minecraftserver, netMgr, this);
+		netMgr.a(this.netServerHandler);
+
+		try {
+			socket.close();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
 	}
 }

src/net/citizensnpcs/resources/lib/NPCNetHandler.java

@@ -0,0 +1,94 @@
+package net.citizensnpcs.resources.lib;
+
+import net.minecraft.server.EntityPlayer;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.NetServerHandler;
+import net.minecraft.server.NetworkManager;
+import net.minecraft.server.Packet;
+import net.minecraft.server.Packet101CloseWindow;
+import net.minecraft.server.Packet102WindowClick;
+import net.minecraft.server.Packet106Transaction;
+import net.minecraft.server.Packet10Flying;
+import net.minecraft.server.Packet130UpdateSign;
+import net.minecraft.server.Packet14BlockDig;
+import net.minecraft.server.Packet15Place;
+import net.minecraft.server.Packet16BlockItemSwitch;
+import net.minecraft.server.Packet255KickDisconnect;
+import net.minecraft.server.Packet28EntityVelocity;
+import net.minecraft.server.Packet3Chat;
+import net.minecraft.server.Packet51MapChunk;
+
+public class NPCNetHandler extends NetServerHandler {
+
+	public NPCNetHandler(MinecraftServer minecraftServer, NetworkManager networkManager, EntityPlayer entityPlayer) {
+		super(minecraftServer, networkManager, entityPlayer);
+	}
+
+	@Override
+	public void a() {
+	}
+
+	@Override
+	public void sendMessage(String string) {
+	}
+
+	@Override
+	public void a(String string, Object[] objects) {
+	}
+
+	@Override
+	public void a(Packet packet) {
+	}
+
+	@Override
+	public void sendPacket(Packet packet) {
+	}
+
+	@Override
+	public void a(Packet3Chat packet) {
+	}
+
+	@Override
+	public void a(Packet10Flying packet) {
+	}
+
+	@Override
+	public void a(Packet14BlockDig packet) {
+	}
+
+	@Override
+	public void a(Packet15Place packet) {
+	}
+
+	@Override
+	public void a(Packet16BlockItemSwitch packet) {
+	}
+
+	@Override
+	public void a(Packet28EntityVelocity packet) {
+	}
+
+	@Override
+	public void a(Packet51MapChunk packet) {
+	}
+
+	@Override
+	public void a(Packet101CloseWindow packet) {
+	}
+
+	@Override
+	public void a(Packet102WindowClick packet) {
+	}
+
+	@Override
+	public void a(Packet106Transaction packet) {
+	}
+
+	@Override
+	public void a(Packet255KickDisconnect packet) {
+	}
+
+	@Override
+	public void a(Packet130UpdateSign packet) {
+	}
+}

src/net/citizensnpcs/resources/lib/NPCNetworkManager.java

@@ -0,0 +1,52 @@
+package net.citizensnpcs.resources.lib;
+
+import java.lang.reflect.Field;
+import java.net.Socket;
+
+import net.minecraft.server.NetHandler;
+import net.minecraft.server.NetworkManager;
+import net.minecraft.server.Packet;
+
+public class NPCNetworkManager extends NetworkManager {
+
+	public NPCNetworkManager(Socket socket, String string, NetHandler netHandler) {
+		super(socket, string, netHandler);
+
+		try {
+			// the field above the 3 synchronized lists.
+			Field f = NetworkManager.class.getDeclaredField("l");
+			f.setAccessible(true);
+			f.set(this, false);
+		} catch (Exception e) {
+		}
+	}
+
+	@Override
+	public void a(NetHandler netHandler) {
+	}
+
+	@Override
+	public void queue(Packet packet) {
+	}
+
+	@Override
+	public void a(String s, Object... objects) {
+	}
+
+	@Override
+	public void a() {
+	}
+
+	@Override
+	public void b() {
+	}
+
+	@Override
+	public void d() {
+	}
+
+	@Override
+	public int e() {
+		return 0;
+	}
+}

src/net/citizensnpcs/resources/lib/NPCSocket.java

@@ -0,0 +1,20 @@
+package net.citizensnpcs.resources.lib;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.Socket;
+
+public class NPCSocket extends Socket {
+
+	@Override
+	public InputStream getInputStream() {
+		return new ByteArrayInputStream(new byte[10]);
+	}
+
+	@Override
+	public OutputStream getOutputStream() {
+		return new ByteArrayOutputStream();
+	}
+}