SetExperiencePacket

2021-05-08 22:31:36 +03:00
27 changed files with 107 additions and 409 deletions
--- a/README.MD
+++ b/README.MD
@@ -1,13 +1,12 @@
 # MC-SERVER

-![version: 1.1](https://img.shields.io/badge/version-1.1-05b.svg?style=flat)
-![codename: VOID](https://img.shields.io/badge/codename-VOID-509.svg?style=flat)
+![version: 1.0-SNAPSHOT](https://img.shields.io/badge/version-1.0-05b.svg?style=flat)
+![codename: ZERO](https://img.shields.io/badge/codename-ZERO-509.svg?style=flat)
 ![protocol: 1.12.2](https://img.shields.io/badge/protocol-1.12.2-075.svg?style=flat)

 Написанный с нуля сервер **Minecraft 1.12.2**.

-На данный момент сервер может показывать о себе информацию в списке серверов (motd, онлайн, иконка) и позволять
-игрокам подключиться к себе. Загружается пустой мир.
+На данный момент может только показывать информацию о себе. Подключение к серверу не возможно.

 ---

--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,3 @@
 project.group=mc-project
 project.name=mc-server
-project.version=1.1
+project.version=1.1-SNAPSHOT
--- a/protocol/src/main/java/mc/protocol/NettyConnectionContext.java
+++ b/protocol/src/main/java/mc/protocol/NettyConnectionContext.java
@@ -2,16 +2,12 @@ package mc.protocol;

 import io.netty.channel.ChannelHandlerContext;
 import lombok.EqualsAndHashCode;
-import lombok.Getter;
 import lombok.Setter;
 import lombok.experimental.Accessors;
 import mc.protocol.api.ConnectionContext;
 import mc.protocol.packets.ServerSidePacket;
 import mc.protocol.pool.Passivable;

-import java.util.Map;
-import java.util.Optional;
-
@EqualsAndHashCode
 public class NettyConnectionContext implements ConnectionContext, Passivable {

@@ -19,14 +15,6 @@ public class NettyConnectionContext implements ConnectionContext, Passivable {
 	@Setter
 	private ChannelHandlerContext ctx;

-	/**
-	 * @deprecated костыль
-	 */
-	@Deprecated
-	@Getter
-	@Setter
-	private boolean usedContext;
-
 	@Override
 	public State getState() {
 		return ctx.channel().attr(NetworkAttributes.STATE).get();
@@ -37,27 +25,6 @@ public class NettyConnectionContext implements ConnectionContext, Passivable {
 		ctx.channel().attr(NetworkAttributes.STATE).set(state);
 	}

-	/**
-	 * @deprecated костыль
-	 */
-	@Deprecated
-	@Override
-	public <T> void setCustomProperty(String key, T value) {
-		Map<String, Object> map = ctx.channel().attr(NetworkAttributes.CUSTOM_PROPERTIES).get();
-		map.put(key, value);
-	}
-
-	/**
-	 * @deprecated костыль
-	 */
-	@Deprecated
-	@SuppressWarnings("unchecked")
-	@Override
-	public <T> Optional<T> getCustomProperty(String key, Class<T> classResult) {
-		Map<String, Object> map = ctx.channel().attr(NetworkAttributes.CUSTOM_PROPERTIES).get();
-		return (Optional<T>) Optional.ofNullable(map.getOrDefault(key, null));
-	}
-
 	@Override
 	public void send(ServerSidePacket packet) {
 		ctx.write(packet);
--- a/protocol/src/main/java/mc/protocol/NetworkAttributes.java
+++ b/protocol/src/main/java/mc/protocol/NetworkAttributes.java
@@ -3,16 +3,8 @@ package mc.protocol;
 import io.netty.util.AttributeKey;
 import lombok.experimental.UtilityClass;

-import java.util.Map;
-
@UtilityClass
 public class NetworkAttributes {

 	public static final AttributeKey<State> STATE = AttributeKey.newInstance("STATE");
-
-	/**
-	 * @deprecated костыль
-	 */
-	@Deprecated
-	public static final AttributeKey<Map<String, Object>> CUSTOM_PROPERTIES = AttributeKey.newInstance("CUSTOM_PROPERTIES");
 }
--- a/protocol/src/main/java/mc/protocol/PacketInboundHandler.java
+++ b/protocol/src/main/java/mc/protocol/PacketInboundHandler.java
@@ -3,20 +3,14 @@ package mc.protocol;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.SimpleChannelInboundHandler;
 import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
 import mc.protocol.packets.ClientSidePacket;
 import mc.protocol.event.EventBus;
 import mc.protocol.pool.PacketPool;
 import org.apache.commons.pool2.ObjectPool;

-import java.io.IOException;
-
-@Slf4j
@RequiredArgsConstructor
 public class PacketInboundHandler extends SimpleChannelInboundHandler<ClientSidePacket> {

-	private static final String CLIENT_FORCE_DISCONNECTED_IOEXCEPTION_MESSAGE_RU = "Программа на вашем хост-компьютере разорвала установленное подключение";
-
 	private final ObjectPool<NettyConnectionContext> poolNettyConnectionContext;
 	private final PacketPool poolPackets;
 	private final EventBus eventBus;
@@ -28,21 +22,7 @@ public class PacketInboundHandler extends SimpleChannelInboundHandler<ClientSide
 		NettyConnectionContext context = poolNettyConnectionContext.borrowObject().setCtx(ctx);
 		eventBus.emit(state, context, packet);

-		if (!context.isUsedContext()) {
-			poolNettyConnectionContext.returnObject(context);
-		}
+		poolNettyConnectionContext.returnObject(context);
 		poolPackets.returnObject(packet);
 	}
-
-	@Override
-	public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
-		if (cause instanceof IOException && cause.getLocalizedMessage().equalsIgnoreCase(CLIENT_FORCE_DISCONNECTED_IOEXCEPTION_MESSAGE_RU)) {
-			log.warn("Client '{}' force disconnected", ctx.channel().remoteAddress());
-			if (log.isTraceEnabled()) {
-				log.trace("", cause);
-			}
-		} else {
-			log.error("{}", cause.getMessage(), cause);
-		}
-	}
 }
--- a/protocol/src/main/java/mc/protocol/State.java
+++ b/protocol/src/main/java/mc/protocol/State.java
@@ -4,7 +4,7 @@ import lombok.Getter;
 import lombok.RequiredArgsConstructor;
 import mc.protocol.packets.ClientSidePacket;
 import mc.protocol.packets.Packet;
-import mc.protocol.packets.KeepAlivePacket;
+import mc.protocol.packets.PingPacket;
 import mc.protocol.packets.ServerSidePacket;
 import mc.protocol.packets.client.*;
 import mc.protocol.packets.server.*;
@@ -24,12 +24,12 @@ public enum State {
 			// client side
 			Map.of(
 					0x00, StatusServerRequestPacket.class,
-					0x01, KeepAlivePacket.class
+					0x01, PingPacket.class
 			),
 			// server side
 			Map.of(
 					StatusServerResponse.class, 0x00,
-					KeepAlivePacket.class, 0x01
+					PingPacket.class, 0x01
 			)
 	),
 	LOGIN(2,
@@ -47,7 +47,7 @@ public enum State {
 					0x00, TeleportConfirmPacket.class,
 					0x04, ClientSettingsPacket.class,
 					0x09, PluginMessagePacket.class,
-					0x0B, KeepAlivePacket.class,
+					0x0B, PingPacket.class,
 					0x0D, PlayerPositionPacket.class,
 					0x0E, CPlayerPositionAndLookPacket.class,
 					0x0F, PlayerLookPacket.class,
@@ -55,11 +55,12 @@ public enum State {
 			),
 			// client bound
 			Map.of(
-					KeepAlivePacket.class, 0x1F,
+					PingPacket.class, 0x1F,
 					ChunkDataPacket.class, 0x20,
 					JoinGamePacket.class, 0x23,
 					PlayerAbilitiesPacket.class,0x2C,
 					SPlayerPositionAndLookPacket.class, 0x2F,
+					SetExperiencePacket.class, 0x40,
 					SpawnPositionPacket.class, 0x46
 			)
 	);
--- a/protocol/src/main/java/mc/protocol/api/ConnectionContext.java
+++ b/protocol/src/main/java/mc/protocol/api/ConnectionContext.java
@@ -3,37 +3,11 @@ package mc.protocol.api;
 import mc.protocol.State;
 import mc.protocol.packets.ServerSidePacket;

-import java.util.Optional;
-
 public interface ConnectionContext {

-	/**
-	 * @deprecated костыль
-	 */
-	@Deprecated
-	void setUsedContext(boolean value);
-
-	/**
-	 * @deprecated костыль
-	 */
-	@Deprecated
-	boolean isUsedContext();
-
 	State getState();
 	void setState(State state);

-	/**
-	 * @deprecated костыль
-	 */
-	@Deprecated
-	<T> void setCustomProperty(String key, T value);
-
-	/**
-	 * @deprecated костыль
-	 */
-	@Deprecated
-	<T> Optional<T> getCustomProperty(String key, Class<T> classResult);
-
 	void send(ServerSidePacket packet);
 	void sendNow(ServerSidePacket packet);
 	void flushSending();
--- a/protocol/src/main/java/mc/protocol/io/codec/ProtocolDecoder.java
+++ b/protocol/src/main/java/mc/protocol/io/codec/ProtocolDecoder.java
@@ -17,7 +17,6 @@ import mc.protocol.pool.PacketPool;
 import org.apache.commons.pool2.ObjectPool;

 import javax.annotation.Nonnull;
-import java.util.HashMap;
 import java.util.List;
 import java.util.Objects;
 import java.util.function.Consumer;
@@ -37,8 +36,6 @@ public class ProtocolDecoder extends ByteToMessageDecoder {

 	@Override
 	public void channelActive(@Nonnull ChannelHandlerContext ctx) throws Exception {
-		ctx.channel().attr(NetworkAttributes.CUSTOM_PROPERTIES).set(new HashMap<>());
-
 		NettyConnectionContext context = poolNettyConnectionContext.borrowObject().setCtx(ctx);
 		consumerNewConnection.accept(context);

@@ -51,9 +48,6 @@ public class ProtocolDecoder extends ByteToMessageDecoder {
 		NettyConnectionContext context = poolNettyConnectionContext.borrowObject().setCtx(ctx);
 		consumerDisconnect.accept(context);

-		ctx.channel().attr(NetworkAttributes.CUSTOM_PROPERTIES).get().clear();
-		ctx.channel().attr(NetworkAttributes.CUSTOM_PROPERTIES).set(null);
-
 		poolNettyConnectionContext.returnObject(context);
 		super.channelInactive(ctx);
 	}
--- a/protocol/src/main/java/mc/protocol/model/Location.java
+++ b/protocol/src/main/java/mc/protocol/model/Location.java
@@ -9,16 +9,4 @@ public class Location {
 	private double x;
 	private double y;
 	private double z;
-
-	public int getIntX() {
-		return (int) x;
-	}
-
-	public int getIntZ() {
-		return (int) z;
-	}
-
-	public Location toChunkXZ() {
-		return new Location(this.getIntX() >> 4, 0d, this.getIntZ() >> 4);
-	}
 }
--- a/protocol/src/main/java/mc/protocol/packets/KeepAlivePacket.java
+++ b/protocol/src/main/java/mc/protocol/packets/KeepAlivePacket.java
@@ -25,7 +25,7 @@ import mc.protocol.io.NetByteBuf;
 * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=7368#Keep_Alive">Keep Alive</a>
 */
@Data
-public class KeepAlivePacket implements ClientSidePacket, ServerSidePacket {
+public class PingPacket implements ClientSidePacket, ServerSidePacket {

 	private Long payload;

--- a/protocol/src/main/java/mc/protocol/packets/server/ChunkDataPacket.java
+++ b/protocol/src/main/java/mc/protocol/packets/server/ChunkDataPacket.java
@@ -28,17 +28,13 @@ import mc.protocol.packets.ServerSidePacket;
@Data
 public class ChunkDataPacket implements ServerSidePacket {

-	private static NetByteBuf voidData;
-
 	private int x;
 	private int z;

-	@SuppressWarnings("java:S125")
 	@Override
 	public void writeSelf(NetByteBuf netByteBuf) {
 		netByteBuf.writeInt(x);
 		netByteBuf.writeInt(z);
-		/* Временное отключение кода
 		netByteBuf.writeBoolean(true); // Is Full chunk
 		netByteBuf.writeVarInt(0b11111111); // Available Sections

@@ -68,41 +64,6 @@ public class ChunkDataPacket implements ServerSidePacket {
 		netByteBuf.writeVarInt(data.readableBytes()); // Size of Data
 		netByteBuf.writeBytes(data); // Data
 		netByteBuf.writeVarInt(0); // Number of block entities
-		// write NBT's
-		 */
-
-		netByteBuf.writeBytes(voidData);
-
-		voidData.resetReaderIndex();
-		voidData.resetWriterIndex();
-	}
-
-	static {
-		voidData = new NetByteBuf(Unpooled.buffer());
-		voidData.writeBoolean(true); // Is Full chunk
-		voidData.writeVarInt(0b11111111); // Available Sections
-
-		NetByteBuf data = new NetByteBuf(Unpooled.buffer());
-		for (int i = 0; i < 16; i++) {
-			NetByteBuf dataBuff = new NetByteBuf(Unpooled.wrappedBuffer(new byte[4096]));
-			NetByteBuf blockLight = new NetByteBuf(Unpooled.wrappedBuffer(new byte[2048]));
-			NetByteBuf skyLight = new NetByteBuf(Unpooled.wrappedBuffer(new byte[2048]));
-			NetByteBuf biomes = new NetByteBuf(Unpooled.wrappedBuffer(new byte[256]));
-
-			data.writeUnsignedByte(13);
-			data.writeUnsignedByte(0);
-			data.writeVarInt(dataBuff.readableBytes());
-			data.writeBytes(dataBuff);
-			data.writeBytes(blockLight);
-			data.writeBytes(skyLight);
-			data.writeBytes(biomes);
-		}
-
-		voidData.writeVarInt(data.readableBytes());
-		voidData.writeBytes(data);
-		voidData.writeVarInt(0);
-
-		voidData.markReaderIndex();
-		voidData.markWriterIndex();
+		/* write NBT's */
 	}
 }
--- a/protocol/src/main/java/mc/protocol/packets/server/SetExperiencePacket.java
+++ b/protocol/src/main/java/mc/protocol/packets/server/SetExperiencePacket.java
@@ -0,0 +1,35 @@
+package mc.protocol.packets.server;
+
+import lombok.Data;
+import mc.protocol.io.NetByteBuf;
+import mc.protocol.packets.ServerSidePacket;
+
+/**
+ * Set Experience packet.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD            | TYPE     | NOTES                  |
+ * |------------------|----------|------------------------|
+ * | Experience bar   | Float    | Значение от 0.0 до 1.0 |
+ * | Level            | VarInt   |                        |
+ * | Total Experience | VarInt   |                        |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Set_Experience">Set Experience</a>
+ * @see <a href="https://minecraft.fandom.com/wiki/Experience#Leveling_up">Experience: Leveling up</a>
+ */
+@Data
+public class SetExperiencePacket implements ServerSidePacket {
+
+	private float experienceBar;
+	private int level;
+	private int totalExperience;
+
+	@Override
+	public void writeSelf(NetByteBuf netByteBuf) {
+		netByteBuf.writeFloat(this.experienceBar);
+		netByteBuf.writeVarInt(this.level);
+		netByteBuf.writeVarInt(this.totalExperience);
+	}
+}
--- a/protocol/src/main/java/mc/protocol/world/Chunk.java
+++ b/protocol/src/main/java/mc/protocol/world/Chunk.java
@@ -1,7 +0,0 @@
-package mc.protocol.world;
-
-public interface Chunk {
-
-	int getX();
-	int getZ();
-}
--- a/protocol/src/main/java/mc/protocol/world/World.java
+++ b/protocol/src/main/java/mc/protocol/world/World.java
@@ -1,13 +0,0 @@
-package mc.protocol.world;
-
-import mc.protocol.model.Location;
-import mc.protocol.utils.LevelType;
-
-public interface World {
-
-	LevelType getLevelType();
-
-	Location getSpawn();
-
-	Chunk getChunk(int x, int z);
-}
--- a/server/src/main/java/mc/server/Main.java
+++ b/server/src/main/java/mc/server/Main.java
@@ -12,7 +12,7 @@ import mc.protocol.api.Server;
 import mc.protocol.di.DaggerProtocolComponent;
 import mc.protocol.di.ProtocolComponent;
 import mc.protocol.di.ProtocolModule;
-import mc.protocol.packets.KeepAlivePacket;
+import mc.protocol.packets.PingPacket;
 import mc.protocol.packets.client.HandshakePacket;
 import mc.protocol.packets.client.LoginStartPacket;
 import mc.protocol.packets.client.StatusServerRequestPacket;
@@ -20,7 +20,6 @@ import mc.server.config.Config;
 import mc.server.di.ConfigModule;
 import mc.server.di.DaggerServerComponent;
 import mc.server.di.ServerComponent;
-import mc.server.service.PlayerManager;
 import org.apache.commons.io.IOUtils;
 import org.slf4j.LoggerFactory;

@@ -49,7 +48,6 @@ public class Main {
 				.build();

 		Config config = serverComponent.getConfig();
-		PlayerManager playerManager = serverComponent.getPlayerManager();

 		ProtocolComponent protocolComponent = DaggerProtocolComponent.builder()
 				.protocolModule(new ProtocolModule(true))
@@ -59,16 +57,13 @@ public class Main {
 		PacketHandler packetHandler = serverComponent.getPacketHandler();

 		server.onNewConnect(connectionContext -> connectionContext.setState(State.HANDSHAKING));
-		server.onDisonnect(connectionContext -> {
-			connectionContext.setState(null);
-			connectionContext.getCustomProperty("player", Player.class).ifPresent(playerManager::remove);
-		});
+		server.onDisonnect(connectionContext -> connectionContext.setState(null));

 		server.listenPacket(State.HANDSHAKING, HandshakePacket.class, packetHandler::onHandshake);
-		server.listenPacket(State.STATUS, KeepAlivePacket.class, packetHandler::onKeepAlive);
+		server.listenPacket(State.STATUS, PingPacket.class, packetHandler::onKeepAlive);
 		server.listenPacket(State.STATUS, StatusServerRequestPacket.class, packetHandler::onServerStatus);
 		server.listenPacket(State.LOGIN, LoginStartPacket.class, packetHandler::onLoginStart);
-		server.listenPacket(State.PLAY, KeepAlivePacket.class, packetHandler::onKeepAlivePlay);
+		server.listenPacket(State.PLAY, PingPacket.class, packetHandler::onKeepAlivePlay);

 		server.bind(config.server().host(), config.server().port());
 	}
--- a/server/src/main/java/mc/server/PacketHandler.java
+++ b/server/src/main/java/mc/server/PacketHandler.java
@@ -2,12 +2,13 @@ package mc.server;

 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import mc.protocol.*;
+import mc.protocol.ProtocolConstant;
+import mc.protocol.State;
 import mc.protocol.api.ConnectionContext;
 import mc.protocol.model.Location;
 import mc.protocol.model.Look;
 import mc.protocol.model.ServerInfo;
-import mc.protocol.packets.KeepAlivePacket;
+import mc.protocol.packets.PingPacket;
 import mc.protocol.packets.client.HandshakePacket;
 import mc.protocol.packets.client.LoginStartPacket;
 import mc.protocol.packets.client.StatusServerRequestPacket;
@@ -15,10 +16,8 @@ import mc.protocol.packets.server.*;
 import mc.protocol.serializer.TextSerializer;
 import mc.protocol.utils.Difficulty;
 import mc.protocol.utils.GameMode;
-import mc.protocol.world.Chunk;
-import mc.protocol.world.World;
+import mc.protocol.utils.LevelType;
 import mc.server.config.Config;
-import mc.server.service.PlayerManager;
 import org.apache.commons.io.IOUtils;

 import java.io.IOException;
@@ -27,6 +26,7 @@ import java.nio.file.Path;
 import java.util.Base64;
 import java.util.Collections;
 import java.util.Random;
+import java.util.UUID;
 import java.util.concurrent.TimeUnit;

@Slf4j
@@ -35,27 +35,18 @@ public class PacketHandler {

 	private final Random random = new Random(System.currentTimeMillis());
 	private final Config config;
-	private final World world;
-	private final PlayerManager playerManager;

 	public void onHandshake(ConnectionContext context, HandshakePacket packet) {
 		context.setState(packet.getNextState());
 	}

-	public void onKeepAlive(ConnectionContext context, KeepAlivePacket packet) {
+	public void onKeepAlive(ConnectionContext context, PingPacket packet) {
 		context.sendNow(packet);
 		context.disconnect();
 	}

-	public void onKeepAlivePlay(ConnectionContext context, KeepAlivePacket packet) {
-		try {
-			TimeUnit.MILLISECONDS.sleep(50);
-			context.sendNow(packet);
-		} catch (InterruptedException e) {
-			if (log.isTraceEnabled()) {
-				log.trace("{}", e.getMessage(), e);
-			}
-		}
+	public void onKeepAlivePlay(ConnectionContext context, PingPacket packet) {
+		context.sendNow(packet);
 	}

 	@SuppressWarnings("unused")
@@ -64,11 +55,7 @@ public class PacketHandler {
 		serverInfo.version().name(ProtocolConstant.PROTOCOL_NAME);
 		serverInfo.version().protocol(ProtocolConstant.PROTOCOL_NUMBER);
 		serverInfo.players().max(config.players().maxOnlile());
-		if (config.players().fakeOnline().enable()) {
-			serverInfo.players().online(config.players().fakeOnline().value());
-		} else {
-			serverInfo.players().online(playerManager.online());
-		}
+		serverInfo.players().online(config.players().onlile());
 		serverInfo.players().sample(Collections.emptyList());
 		serverInfo.description(TextSerializer.fromPlain(config.motd()));

@@ -82,29 +69,28 @@ public class PacketHandler {
 		context.sendNow(response);
 	}

-	@SuppressWarnings("java:S2589")
+	@SuppressWarnings("java:S2189")
 	public void onLoginStart(ConnectionContext context, LoginStartPacket loginStartPacket) {
-		Player player = playerManager.addAndCreate(context, loginStartPacket.getName(), GameMode.SURVIVAL, world.getSpawn());
-		context.setCustomProperty("player", player);
-
 		var loginSuccessPacket = new LoginSuccessPacket();
-		loginSuccessPacket.setUuid(player.getUuid());
-		loginSuccessPacket.setName(player.getName());
+		loginSuccessPacket.setUuid(UUID.randomUUID());
+		loginSuccessPacket.setName(loginStartPacket.getName());

 		context.sendNow(loginSuccessPacket);
 		context.setState(State.PLAY);

 		var joinGamePacket = new JoinGamePacket();
 		joinGamePacket.setEntityId(random.nextInt());
-		joinGamePacket.setGameMode(player.getGameMode());
+		joinGamePacket.setGameMode(GameMode.SURVIVAL);
 		joinGamePacket.setDimension(0/*Overworld*/);
 		joinGamePacket.setDifficulty(Difficulty.PEACEFUL);
-		joinGamePacket.setLevelType(world.getLevelType());
+		joinGamePacket.setLevelType(LevelType.FLAT);

 		context.send(joinGamePacket);

+		Location spawnLocation = new Location(7d, 130d, 7d);
+
 		var spawnPositionPacket = new SpawnPositionPacket();
-		spawnPositionPacket.setSpawn(player.getLocation());
+		spawnPositionPacket.setSpawn(spawnLocation);

 		context.send(spawnPositionPacket);

@@ -120,49 +106,49 @@ public class PacketHandler {

 		context.flushSending();

-		Location chunkLocation = player.getLocation().toChunkXZ();
-		Chunk chunk = world.getChunk(chunkLocation.getIntX(), chunkLocation.getIntZ());
-
 		var chunkDataPacket = new ChunkDataPacket();
-		chunkDataPacket.setX(chunk.getX());
-		chunkDataPacket.setZ(chunk.getZ());
+		chunkDataPacket.setX(0);
+		chunkDataPacket.setZ(0);

-		context.send(chunkDataPacket);
-
-		for (int i = 1; i <= config.world().viewDistance(); i++) {
-			int minX = chunkLocation.getIntX() - i;
-			int minZ = chunkLocation.getIntZ() - i;
-			int maxX = chunkLocation.getIntX() + i;
-			int maxZ = chunkLocation.getIntZ() + i;
-
-			for (int z = minZ; z <= maxZ; z++) {
-				for (int x = minX; x <= maxX; x++) {
-					if ((z == minZ || z == maxZ) || (x == minX || x == maxX)) {
-						chunkDataPacket = new ChunkDataPacket();
-						chunkDataPacket.setX(x);
-						chunkDataPacket.setZ(z);
-
-						context.send(chunkDataPacket);
-					}
-				}
-			}
-		}
-
-		context.flushSending();
+		context.sendNow(chunkDataPacket);

 		var playerPositionAndLookPacket = new SPlayerPositionAndLookPacket();
-		playerPositionAndLookPacket.setPosition(player.getLocation());
+		playerPositionAndLookPacket.setPosition(spawnLocation);
 		playerPositionAndLookPacket.setLook(new Look(0f, 0f));
 		playerPositionAndLookPacket.setTeleportId(random.nextInt());

 		context.send(playerPositionAndLookPacket);

-		KeepAlivePacket keepAlivePacket = new KeepAlivePacket();
-		keepAlivePacket.setPayload(System.currentTimeMillis());
+		PingPacket pingPacket = new PingPacket();
+		pingPacket.setPayload(System.currentTimeMillis());

-		context.send(keepAlivePacket);
+		context.send(pingPacket);

 		context.flushSending();
+
+		// -- Эксперименты -- //
+
+		var setExperiencePacket = new SetExperiencePacket();
+		setExperiencePacket.setExperienceBar(0f);
+		setExperiencePacket.setLevel(0);
+		setExperiencePacket.setTotalExperience(100);
+
+		while (true) {
+			context.sendNow(setExperiencePacket);
+
+			setExperiencePacket.setExperienceBar(setExperiencePacket.getExperienceBar() + 0.01f);
+			setExperiencePacket.setLevel(setExperiencePacket.getLevel() + 1);
+			if (setExperiencePacket.getExperienceBar() > 1.0f) {
+				setExperiencePacket.setExperienceBar(0f);
+				setExperiencePacket.setLevel(0);
+			}
+
+			try {
+				TimeUnit.MILLISECONDS.sleep(10);
+			} catch (InterruptedException e) {
+				break;
+			}
+		}
 	}

 	private static String faviconToBase64(Path iconPath) {
--- a/server/src/main/java/mc/server/Player.java
+++ b/server/src/main/java/mc/server/Player.java
@@ -1,20 +0,0 @@
-package mc.server;
-
-import lombok.Getter;
-import lombok.RequiredArgsConstructor;
-import mc.protocol.api.ConnectionContext;
-import mc.protocol.model.Location;
-import mc.protocol.utils.GameMode;
-
-import java.util.UUID;
-
-@RequiredArgsConstructor
-@Getter
-public class Player {
-
-	private final ConnectionContext connectionContext;
-	private final UUID uuid;
-	private final String name;
-	private final GameMode gameMode;
-	private final Location location;
-}
--- a/server/src/main/java/mc/server/config/Config.java
+++ b/server/src/main/java/mc/server/config/Config.java
@@ -15,7 +15,6 @@ public class Config {

 	private final Server server = new Server();
 	private final Players players = new Players();
-	private final World world = new World();

 	private String motd;
 	private String disconnectReason;
@@ -33,23 +32,7 @@ public class Config {
 	@Setter
 	@ToString
 	public static class Players {
-		private final FakeOnline fakeOnline = new FakeOnline();
-
 		private int maxOnlile;
-	}
-
-	@Getter
-	@Setter
-	@ToString
-	public static class FakeOnline {
-		private boolean enable;
-		private int value;
-	}
-
-	@Getter
-	@Setter
-	@ToString
-	public static class World {
-		private int viewDistance;
+		private int onlile;
 	}
 }
--- a/server/src/main/java/mc/server/di/ConfigModule.java
+++ b/server/src/main/java/mc/server/di/ConfigModule.java
@@ -27,15 +27,10 @@ public class ConfigModule {

 		config.server().host(fromYamlPath("server/host", map, "127.0.0.1"));
 		config.server().port(fromYamlPath("server/port", map, 25565));
-
 		config.motd(fromYamlPath("motd", map, ""));
 		config.disconnectReason(fromYamlPath("disconnect-reason", map, ""));
-
 		config.players().maxOnlile(fromYamlPath("players/max-online", map, 0));
-		config.players().fakeOnline().enable(fromYamlPath("players/fake-online/enable", map, false));
-		config.players().fakeOnline().value(fromYamlPath("players/fake-online/value", map, 0));
-
-		config.world().viewDistance(fromYamlPath("world/view-distance", map, 0));
+		config.players().onlile(fromYamlPath("players/online", map, 0));

 		if (Boolean.TRUE.equals(fromYamlPath("icon/enable", map, false))) {
 			config.iconPath(Paths.get(fromYamlPath("icon/path", map, "favicon.png")));
--- a/server/src/main/java/mc/server/di/PacketHandlerModule.java
+++ b/server/src/main/java/mc/server/di/PacketHandlerModule.java
@@ -2,16 +2,14 @@ package mc.server.di;

 import dagger.Module;
 import dagger.Provides;
-import mc.protocol.world.World;
 import mc.server.PacketHandler;
 import mc.server.config.Config;
-import mc.server.service.PlayerManager;

@Module
 public class PacketHandlerModule {

 	@Provides
-	public PacketHandler providePacketHandler(Config config, World world, PlayerManager playerManager) {
-		return new PacketHandler(config, world, playerManager);
+	public PacketHandler providePacketHandler(Config config) {
+		return new PacketHandler(config);
 	}
 }
--- a/server/src/main/java/mc/server/di/PlayersModule.java
+++ b/server/src/main/java/mc/server/di/PlayersModule.java
@@ -1,16 +0,0 @@
-package mc.server.di;
-
-import dagger.Module;
-import dagger.Provides;
-import mc.protocol.di.ServerScope;
-import mc.server.service.PlayerManager;
-
-@Module
-public class PlayersModule {
-
-	@Provides
-	@ServerScope
-	PlayerManager providePlayerManager() {
-		return new PlayerManager();
-	}
-}
--- a/server/src/main/java/mc/server/di/ServerComponent.java
+++ b/server/src/main/java/mc/server/di/ServerComponent.java
@@ -1,18 +1,14 @@
 package mc.server.di;

 import dagger.Component;
-import mc.protocol.di.ServerScope;
 import mc.server.PacketHandler;
 import mc.server.config.Config;
-import mc.server.service.PlayerManager;

@Component(modules = {
-		ConfigModule.class, PacketHandlerModule.class, WorldModule.class, PlayersModule.class
+		ConfigModule.class, PacketHandlerModule.class
 })
-@ServerScope
 public interface ServerComponent {

 	Config getConfig();
 	PacketHandler getPacketHandler();
-	PlayerManager getPlayerManager();
 }
--- a/server/src/main/java/mc/server/di/WorldModule.java
+++ b/server/src/main/java/mc/server/di/WorldModule.java
@@ -1,17 +0,0 @@
-package mc.server.di;
-
-import dagger.Module;
-import dagger.Provides;
-import mc.protocol.di.ServerScope;
-import mc.protocol.world.World;
-import mc.server.world.VoidWorld;
-
-@Module
-public class WorldModule {
-
-	@Provides
-	@ServerScope
-	public World provideWorld() {
-		return new VoidWorld();
-	}
-}
--- a/server/src/main/java/mc/server/service/PlayerManager.java
+++ b/server/src/main/java/mc/server/service/PlayerManager.java
@@ -1,29 +0,0 @@
-package mc.server.service;
-
-import mc.protocol.api.ConnectionContext;
-import mc.protocol.model.Location;
-import mc.protocol.utils.GameMode;
-import mc.server.Player;
-
-import java.util.LinkedList;
-import java.util.UUID;
-
-public class PlayerManager {
-
-	private final LinkedList<Player> players = new LinkedList<>();
-
-	public Player addAndCreate(ConnectionContext context, String name, GameMode gameMode, Location location) {
-		context.setUsedContext(true);
-		Player player = new Player(context, UUID.randomUUID(), name, gameMode, location);
-		players.add(player);
-		return player;
-	}
-
-	public void remove(Player player) {
-		players.remove(player);
-	}
-
-	public int online() {
-		return players.size();
-	}
-}
--- a/server/src/main/java/mc/server/world/VoidChunk.java
+++ b/server/src/main/java/mc/server/world/VoidChunk.java
@@ -1,13 +0,0 @@
-package mc.server.world;
-
-import lombok.Getter;
-import lombok.RequiredArgsConstructor;
-import mc.protocol.world.Chunk;
-
-@RequiredArgsConstructor
-@Getter
-public class VoidChunk implements Chunk {
-
-	private final int x;
-	private final int z;
-}
--- a/server/src/main/java/mc/server/world/VoidWorld.java
+++ b/server/src/main/java/mc/server/world/VoidWorld.java
@@ -1,26 +0,0 @@
-package mc.server.world;
-
-import mc.protocol.model.Location;
-import mc.protocol.utils.LevelType;
-import mc.protocol.world.Chunk;
-import mc.protocol.world.World;
-
-public class VoidWorld implements World {
-
-	private static final Location spawn = new Location(7d, 130d, 7d);
-
-	@Override
-	public LevelType getLevelType() {
-		return LevelType.FLAT;
-	}
-
-	@Override
-	public Location getSpawn() {
-		return VoidWorld.spawn;
-	}
-
-	@Override
-	public Chunk getChunk(int x, int z) {
-		return new VoidChunk(x, z);
-	}
-}
--- a/server/src/main/resources/config-sample.yml
+++ b/server/src/main/resources/config-sample.yml
@@ -10,14 +10,9 @@ disconnect-reason: '&4Server is not available.'

 players:
  max-online: 0
-  fake-online:
-    enable: false
-    value: 0
+  online: 0

 # Размер значка: 64x64 px
 icon:
  enable: false
  path: favicon.png
-
-world:
-  view-distance: 1