gradle upgrade

# Conflicts:
#	protocol/src/main/java/mc/protocol/packets/play/client/CPlayerPositionAndLookPacket.java
#	protocol/src/main/java/mc/protocol/packets/play/client/PlayerLookPacket.java
#	protocol/src/main/java/mc/protocol/packets/play/client/PlayerPositionPacket.java
#	protocol/src/main/java/mc/protocol/packets/play/server/ChunkDataPacket.java
#	protocol/src/test/java/mc/protocol/buffer/NetByteBufReadTest.java
#	protocol/src/test/java/mc/protocol/buffer/NetByteBufWriteTest.java
#	server/src/main/resources/logback-default.xml

README.MD

@@ -1,12 +1,13 @@
 # MC-SERVER
 
-![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)
+![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)
 ![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 может только показывать информацию о себе. Подключение к серверу не возможно.
+На данный момент сервер может показывать о себе информацию в списке серверов (motd, онлайн, иконка) и позволять
+игрокам подключиться к себе. Загружается пустой мир.
 
 ---
 

cli-parser/build.gradle

@@ -0,0 +1,2 @@
+//file:noinspection GrUnresolvedAccess
+apply from: rootDir.toPath().resolve('logic.gradle').toFile()

cli-parser/gradle.properties

@@ -0,0 +1,2 @@
+# suppress inspection "UnusedProperty" for whole file
+module.name=cli-parser

cli-parser/src/main/java/mc/cliparser/CommandLine.java

@@ -0,0 +1,17 @@
+package mc.cliparser;
+
+import lombok.RequiredArgsConstructor;
+import lombok.ToString;
+
+import java.util.Set;
+
+@RequiredArgsConstructor
+@ToString
+public class CommandLine {
+
+	private final Set<Option> options;
+
+	public boolean has(Option option) {
+		return options.contains(option);
+	}
+}

cli-parser/src/main/java/mc/cliparser/CommandLineParser.java

@@ -0,0 +1,52 @@
+package mc.cliparser;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicReference;
+
+public class CommandLineParser {
+
+	private final Set<Option> options = new HashSet<>();
+
+	public void addOption(Option option) {
+		options.add(option);
+	}
+
+	public CommandLine parse(String[] args) {
+
+		Set<Option> foundOptions = new HashSet<>();
+		AtomicReference<Option> refCurrentOption = new AtomicReference<>(null);
+
+		for (String arg : args) {
+			if (refCurrentOption.get() != null) {
+				refCurrentOption.get().value(arg);
+				foundOptions.add(refCurrentOption.get());
+				refCurrentOption.set(null);
+			} else {
+				parseOptArgs(arg, foundOptions, refCurrentOption);
+			}
+		}
+
+		return new CommandLine(foundOptions);
+	}
+
+	@SuppressWarnings("java:S125")
+	private void parseOptArgs(String arg, Set<Option> foundOptions, AtomicReference<Option> refCurrentOption) {
+		String optName;
+		if (arg.startsWith("--")) {
+			optName = arg.substring(2);
+		} else /*if (args[i].startsWith("-"))*/ {
+			optName = arg.substring(1);
+		}
+
+		for (Option option : options) {
+			if (optName.equals(option.shortName()) || optName.equals(option.longName())) {
+				if (option.hasArgs()) {
+					refCurrentOption.set(option);
+				} else {
+					foundOptions.add(option);
+				}
+			}
+		}
+	}
+}

cli-parser/src/main/java/mc/cliparser/Option.java

@@ -0,0 +1,25 @@
+package mc.cliparser;
+
+import lombok.*;
+import lombok.experimental.Accessors;
+
+@Accessors(fluent = true)
+@Builder
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+@EqualsAndHashCode
+@ToString
+public class Option {
+
+	@Getter
+	private final String shortName;
+
+	@Getter
+	private final String longName;
+
+	@Getter
+	private final boolean hasArgs;
+
+	@Getter
+	@Setter
+	private String value;
+}

cli-parser/src/test/java/mc/cliparser/CommandLineParserTest.java

@@ -0,0 +1,73 @@
+package mc.cliparser;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class CommandLineParserTest {
+
+	@Test
+	void optionTest() {
+		Option option = Option.builder().shortName("v").build();
+		assertNull(option.longName());
+		assertFalse(option.hasArgs());
+
+		option = Option.builder().longName("version").build();
+		assertNull(option.shortName());
+		assertFalse(option.hasArgs());
+
+		option = Option.builder().shortName("v").longName("value1").hasArgs(true).build();
+		assertNotNull(option.shortName());
+		assertNotNull(option.longName());
+		assertTrue(option.hasArgs());
+	}
+
+	@Test
+	void shortOptionFlag() {
+		Option option = Option.builder().shortName("v").build();
+
+		var parser = new CommandLineParser();
+		parser.addOption(option);
+
+		CommandLine commandLine = parser.parse(new String[]{ "-v" });
+		assertTrue(commandLine.has(option));
+	}
+
+	@Test
+	void longOptionFlag() {
+		Option option = Option.builder().longName("version").build();
+
+		var parser = new CommandLineParser();
+		parser.addOption(option);
+
+		CommandLine commandLine = parser.parse(new String[]{ "--version" });
+		assertTrue(commandLine.has(option));
+	}
+
+	@Test
+	void argsOption() {
+		Option option1 = Option.builder().shortName("v").longName("value1").hasArgs(true).build();
+		Option option2 = Option.builder().shortName("a").longName("value2").hasArgs(true).build();
+
+		var parser = new CommandLineParser();
+		parser.addOption(option1);
+		parser.addOption(option2);
+
+		CommandLine commandLine = parser.parse(new String[]{ "--value1", "arg1", "-a", "arg2"  });
+		assertTrue(commandLine.has(option1));
+		assertEquals("arg1", option1.value());
+		assertTrue(commandLine.has(option2));
+		assertEquals("arg2", option2.value());
+	}
+
+	@Test
+	void noPassOption() {
+		Option option = Option.builder().longName("version").build();
+
+		var parser = new CommandLineParser();
+		parser.addOption(option);
+
+		CommandLine commandLine = parser.parse(new String[]{ "--any-opt" });
+		assertFalse(commandLine.has(option));
+	}
+}

gradle.properties

@@ -1,3 +1,3 @@
-project.group=mc-project
-project.name=mc-server
-project.version=1.0
+prj.group=mc-project
+prj.name=mc-server
+prj.version=1.1

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.1.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

libs.gradle

@@ -13,13 +13,18 @@ ext {
             lombok     : 'org.projectlombok:lombok:1.18.12',
             annotations: 'com.google.code.findbugs:jsr305:3.0.2',
             lang3      : 'org.apache.commons:commons-lang3:3.11',
-            netty      : ["io.netty:netty-transport:${netty_version}",
-                          "io.netty:netty-handler:${netty_version}"],
             reactor    : 'io.projectreactor:reactor-core:3.4.5',
-            yaml       : 'org.yaml:snakeyaml:1.28',
+            hocon      : 'com.typesafe:config:1.4.1',
             json       : 'com.eclipsesource.minimal-json:minimal-json:0.9.5',
             ioutils    : 'commons-io:commons-io:2.6',
-            jopt       : 'net.sf.jopt-simple:jopt-simple:6.0-alpha-3'
+            jopt       : 'net.sf.jopt-simple:jopt-simple:6.0-alpha-3',
+            objpool    : 'org.apache.commons:commons-pool2:2.9.0'
+    ]
+
+    libs.netty = [
+            transport: "io.netty:netty-transport:${netty_version}",
+            codec    : "io.netty:netty-codec:${netty_version}",
+            handler  : "io.netty:netty-handler:${netty_version}"
     ]
 
     libs.logger = [

logic.gradle

@@ -1,21 +1,28 @@
 //file:noinspection GrUnresolvedAccess
 apply plugin: 'java'
 apply plugin: 'java-library'
+apply plugin: 'jacoco'
 apply from: rootDir.toPath().resolve('libs.gradle').toFile()
 
 String getProperty1(String propertyName1, String propertyName2) {
     return (String) (project.hasProperty(propertyName1) ? project.property(propertyName1) : project.property(propertyName2))
 }
 
-project.group = getProperty1('module.group', 'project.group')
-project.version = getProperty1('module.version', 'project.version')
-jar.archiveBaseName.set(getProperty1('module.name', 'project.name'))
+project.group = getProperty1('module.group', 'prj.group')
+project.version = getProperty1('module.version', 'prj.version')
+jar.archiveBaseName.set(getProperty1('module.name', 'prj.name'))
 
 compileJava {
     sourceCompatibility = targetCompatibility = JavaVersion.VERSION_11
     options.encoding = 'UTF-8'
 }
 
+gradle.projectsEvaluated {
+    tasks.withType(JavaCompile) {
+        options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation"
+    }
+}
+
 repositories {
     mavenLocal()
     mavenCentral()
@@ -31,13 +38,18 @@ dependencies {
     implementation libs.dagger2.implementation
     annotationProcessor libs.dagger2.annotationProcessor
 
+    testAnnotationProcessor libs.lombok
+    testCompileOnly libs.lombok
+
     testImplementation libs.test.junit5.api
     testImplementation libs.test.junit5.params
     testRuntimeOnly libs.test.junit5.engine
-
-    testRuntimeOnly libs.test.logger
 }
 
 test {
     useJUnitPlatform()
 }
+
+jacoco {
+    toolVersion = '0.8.7'
+}

protocol/build.gradle

@@ -1,8 +1,10 @@
 apply from: rootDir.toPath().resolve('logic.gradle').toFile()
 
 dependencies {
-    api libs.netty
-    api libs.reactor
+    api project(':utils')
+
+    implementation libs.netty.transport
+    implementation libs.netty.codec
     implementation libs.json
 
     testImplementation libs.lang3

protocol/src/main/java/mc/protocol/ChannelContext.java

@@ -1,20 +0,0 @@
-package mc.protocol;
-
-import io.netty.channel.ChannelHandlerContext;
-import lombok.Getter;
-import lombok.RequiredArgsConstructor;
-import mc.protocol.packets.Packet;
-
-@RequiredArgsConstructor
-public class ChannelContext<P extends Packet> {
-
-	@Getter
-	private final ChannelHandlerContext ctx;
-
-	@Getter
-	private final P packet;
-
-	public void setState(State state) {
-		ctx.channel().attr(NetworkAttributes.STATE).set(state);
-	}
-}

protocol/src/main/java/mc/protocol/NettyServer.java

@@ -1,43 +0,0 @@
-package mc.protocol;
-
-import io.netty.bootstrap.ServerBootstrap;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
-import mc.protocol.di.DaggerProtocolComponent;
-import mc.protocol.di.ProtocolComponent;
-import mc.protocol.packets.Packet;
-import reactor.core.publisher.Flux;
-import reactor.core.publisher.Sinks;
-
-import java.util.Map;
-
-@SuppressWarnings("rawtypes")
-@Slf4j
-@RequiredArgsConstructor
-public class NettyServer {
-
-	private final ServerBootstrap serverBootstrap;
-	private final Map<Class<? extends Packet>, Sinks.Many<ChannelContext>> observedMap;
-
-	public void bind(String host, int port) {
-		log.info("Network starting: {}:{}", host, port);
-
-		try {
-			serverBootstrap.bind(host, port).sync().channel().closeFuture().sync();
-		} catch (InterruptedException e) {
-			if (log.isTraceEnabled()) {
-				log.trace("{}: {}", e.getClass().getSimpleName(), e.getMessage(), e);
-			}
-		}
-	}
-
-	@SuppressWarnings("unchecked")
-	public <P extends Packet> Flux<ChannelContext<P>> packetFlux(Class<P> packetClass) {
-		return observedMap.get(packetClass).asFlux().map(ChannelContext.class::cast);
-	}
-
-	public static NettyServer createServer() {
-		ProtocolComponent component = DaggerProtocolComponent.create();
-		return component.getNettyServer();
-	}
-}

protocol/src/main/java/mc/protocol/PacketInboundHandler.java

@@ -1,21 +0,0 @@
-package mc.protocol;
-
-import io.netty.channel.ChannelHandlerContext;
-import io.netty.channel.SimpleChannelInboundHandler;
-import lombok.RequiredArgsConstructor;
-import mc.protocol.packets.Packet;
-import reactor.core.publisher.Sinks;
-
-import java.util.Map;
-
-@SuppressWarnings("rawtypes")
-@RequiredArgsConstructor
-public class PacketInboundHandler extends SimpleChannelInboundHandler<Packet> {
-
-	private final Map<Class<? extends Packet>, Sinks.Many<ChannelContext>> observedMap;
-
-	@Override
-	protected void channelRead0(ChannelHandlerContext ctx, Packet packet) {
-		observedMap.get(packet.getClass()).tryEmitNext(new ChannelContext<>(ctx, packet));
-	}
-}

protocol/src/main/java/mc/protocol/ProtocolAttributes.java

@@ -4,7 +4,7 @@ import io.netty.util.AttributeKey;
 import lombok.experimental.UtilityClass;
 
 @UtilityClass
-public class NetworkAttributes {
+public class ProtocolAttributes {
 
 	public static final AttributeKey<State> STATE = AttributeKey.newInstance("STATE");
 }

protocol/src/main/java/mc/protocol/ProtocolConstant.java

@@ -5,6 +5,6 @@ import lombok.experimental.UtilityClass;
 @UtilityClass
 public class ProtocolConstant {
 
-	public static final String PROTOCOL_NAME = "1.12.2";
-	public static final int PROTOCOL_NUMBER = 340;
+	public final String PROTOCOL_NAME = "1.12.2";
+	public final int PROTOCOL_NUMBER = 340;
 }

protocol/src/main/java/mc/protocol/State.java

@@ -3,14 +3,16 @@ package mc.protocol;
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
 import mc.protocol.packets.ClientSidePacket;
-import mc.protocol.packets.Packet;
-import mc.protocol.packets.PingPacket;
+import mc.protocol.packets.KeepAlivePacket;
 import mc.protocol.packets.ServerSidePacket;
-import mc.protocol.packets.client.HandshakePacket;
-import mc.protocol.packets.client.LoginStartPacket;
-import mc.protocol.packets.client.StatusServerRequestPacket;
-import mc.protocol.packets.server.DisconnectPacket;
-import mc.protocol.packets.server.StatusServerResponse;
+import mc.protocol.packets.handshaking.client.HandshakePacket;
+import mc.protocol.packets.login.client.LoginStartPacket;
+import mc.protocol.packets.login.server.DisconnectPacket;
+import mc.protocol.packets.login.server.LoginSuccessPacket;
+import mc.protocol.packets.play.client.*;
+import mc.protocol.packets.play.server.*;
+import mc.protocol.packets.status.client.StatusServerRequestPacket;
+import mc.protocol.packets.status.server.StatusServerResponse;
 
 import javax.annotation.Nullable;
 import java.util.Collections;
@@ -19,60 +21,87 @@ import java.util.Map;
 @RequiredArgsConstructor
 public enum State {
 
-	HANDSHAKING(-1,
+	HANDSHAKING(0,
 			// client side
-			Map.of(0x00, HandshakePacket.class)
+			Map.of(0x00, HandshakePacket.class),
+			// server side
+			Collections.emptyMap()
 	),
+
 	STATUS(1,
 			// client side
 			Map.of(
 					0x00, StatusServerRequestPacket.class,
-					0x01, PingPacket.class
+					0x01, KeepAlivePacket.class
 			),
 			// server side
 			Map.of(
 					StatusServerResponse.class, 0x00,
-					PingPacket.class, 0x01
+					KeepAlivePacket.class, 0x01
 			)
 	),
+
 	LOGIN(2,
-			// server bound
+			// client side
 			Map.of(0x00, LoginStartPacket.class),
-			// client bound
-			Map.of(DisconnectPacket.class, 0x00)
+			// server side
+			Map.of(
+					DisconnectPacket.class, 0x00,
+					LoginSuccessPacket.class, 0x02
+			)
+	),
+
+	PLAY(3,
+			// client side
+			Map.ofEntries(
+					Map.entry(0x00, TeleportConfirmPacket.class),
+					Map.entry(0x04, ClientSettingsPacket.class),
+					Map.entry(0x09, PluginMessagePacket.class),
+					Map.entry(0x0B, KeepAlivePacket.class),
+					Map.entry(0x0C, PlayerOnGroundPacket.class),
+					Map.entry(0x0D, PlayerPositionPacket.class),
+					Map.entry(0x0E, CPlayerPositionAndLookPacket.class),
+					Map.entry(0x0F, PlayerLookPacket.class),
+					Map.entry(0x13, CPlayerAbilitiesPacket.class),
+					Map.entry(0x14, PlayerDiggingAndMorePacket.class),
+					Map.entry(0x15, EntityActionPacket.class),
+					Map.entry(0x1D, HandAnimationPacket.class),
+					Map.entry(0x1F, PlayerBlockPlacementPacket.class)
+			),
+			// server side
+			Map.of(
+					KeepAlivePacket.class, 0x1F,
+					ChunkDataPacket.class, 0x20,
+					JoinGamePacket.class, 0x23,
+					SPlayerAbilitiesPacket.class,0x2C,
+					SPlayerPositionAndLookPacket.class, 0x2F,
+					SpawnPositionPacket.class, 0x46
+			)
 	);
 
-	@Nullable
 	public static State getById(int id) {
-		for (State state : State.values()) {
-			if (state.id == id) {
-				return state;
-			}
-		}
-
-		return null;
+		// а зачем усложнять?
+		//@formatter:off
+		if      (id == 1) return STATUS;
+		else if (id == 2) return LOGIN;
+		else if (id == 3) return PLAY;
+		else              return HANDSHAKING;
+		//@formatter:on
 	}
 
 	@Getter
 	private final int id;
 
-	@Getter
 	private final Map<Integer, Class<? extends ClientSidePacket>> clientSidePackets;
 	private final Map<Class<? extends ServerSidePacket>, Integer> serverSidePackets;
 
-	State(int id, Map<Integer, Class<? extends ClientSidePacket>> clientSidePackets) {
-		this.id = id;
-		this.clientSidePackets = clientSidePackets;
-		this.serverSidePackets = Collections.emptyMap();
-	}
-
 	@Nullable
 	public Class<? extends ClientSidePacket> getClientSidePacketById(int id) {
 		return clientSidePackets == null ? null : clientSidePackets.get(id);
 	}
 
 	@Nullable
-	public Integer getServerSidePacketId(Class<? extends Packet> clazz) {
+	public Integer getServerSidePacketId(Class<? extends ServerSidePacket> clazz) {
 		return serverSidePackets == null ? null : serverSidePackets.get(clazz);
 	}
 }

protocol/src/main/java/mc/protocol/buffer/NetByteBuf.java

@@ -1,4 +1,4 @@
-package mc.protocol.io;
+package mc.protocol.buffer;
 
 import io.netty.buffer.ByteBuf;
 import lombok.EqualsAndHashCode;
@@ -6,6 +6,8 @@ import lombok.RequiredArgsConstructor;
 import lombok.ToString;
 import lombok.experimental.Delegate;
 import lombok.extern.slf4j.Slf4j;
+import mc.protocol.model.text.Text;
+import mc.protocol.model.text.TextSerializer;
 
 import java.nio.charset.StandardCharsets;
 import java.util.UUID;
@@ -32,22 +34,32 @@ import java.util.UUID;
  * |                |                       |                                                     | этого числа).                                                            |
  * | VarInt         | >= 1 ; <= 5           | Число от -2147483648 и 2147483647                   | 32-bit число с плавающей размерностью от 1 до 5 байт                     |
  * | VarLong        | >= 1 ; <= 10          | Число от -9223372036854775808 и 9223372036854775807 | 64-bit число с плавающей размерностью от 1 до 10 байт                    |
+ * | Text           |                       | JSON                                                | По файту является String (n), который имеет формат JSON                  |
  *
  * [1] - <a href="https://en.wikipedia.org/wiki/Single-precision_floating-point_format">Single-precision floating-point format</a>
  * [2] - <a href="https://en.wikipedia.org/wiki/Double-precision_floating-point_format">Double-precision floating-point format</a>
  * [3] - <a href="http://unicode.org/glossary/#unicode_scalar_value">Unicode Scalar Value</a>
  * </pre>
  *
- * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=7368#Data_types">Data types</a>
+ * @see <a href="https://wiki.vg/index.php?title=Data_types&oldid=14345#Definitions">Data types</a>
+ * @see <a href="https://wiki.vg/index.php?title=Chat&oldid=14272">Chat</a>
  */
 @Slf4j
 @RequiredArgsConstructor
 @EqualsAndHashCode(callSuper = false)
 @ToString
-public class NetByteBuf extends ByteBuf {
+public abstract class NetByteBuf extends ByteBuf {
 
 	@Delegate
-	private final ByteBuf byteBuf;
+	protected ByteBuf byteBuf;
+
+	public void writeUnsignedByte(int value) {
+		byteBuf.writeByte((byte)(value & 0xFF));
+	}
+
+	public void writeText(Text text) {
+		writeString(TextSerializer.toStringPlain(text));
+	}
 
 	//region String
 	public String readString() {
@@ -61,9 +73,9 @@ public class NetByteBuf extends ByteBuf {
 		if (length == 0) {
 			return "";
 		} else if (length > maxLength) {
-			throw new DecoderException("String length exceeds maximum length: " + length + " > " + maxLength);
+			throw new NetIOException("String length exceeds maximum length: " + length + " > " + maxLength);
 		} else if (length < 0) {
-			throw new DecoderException("String length less zero!");
+			throw new NetIOException("String length less zero!");
 		}
 
 		byte[] bytes = new byte[length * 4];
@@ -108,22 +120,7 @@ public class NetByteBuf extends ByteBuf {
 
 	//region VarInt
 	public int readVarInt() {
-		int numRead = 0;
-		int result = 0;
-		byte read;
-		do {
-			if ((numRead + 1) > 5) {
-				log.warn("VarInt is too big");
-				break;
-			}
-			read = readByte();
-			int value = (read & 0b01111111);
-			result |= (value << (7 * numRead));
-
-			numRead++;
-		} while ((read & 0b10000000) != 0);
-
-		return result;
+		return readVarInt(this.byteBuf);
 	}
 
 	public void writeVarInt(int value) {
@@ -177,4 +174,23 @@ public class NetByteBuf extends ByteBuf {
 		writeLong(uuid.getLeastSignificantBits());
 	}
 	//endregion
+
+	public static int readVarInt(ByteBuf byteBuf) {
+		int numRead = 0;
+		int result = 0;
+		byte read;
+		do {
+			if ((numRead + 1) > 5) {
+				log.warn("VarInt is too big");
+				break;
+			}
+			read = byteBuf.readByte();
+			int value = (read & 0b01111111);
+			result |= (value << (7 * numRead));
+
+			numRead++;
+		} while ((read & 0b10000000) != 0);
+
+		return result;
+	}
 }

protocol/src/main/java/mc/protocol/buffer/NetIOException.java

@@ -0,0 +1,8 @@
+package mc.protocol.buffer;
+
+public class NetIOException extends RuntimeException {
+
+    public NetIOException(String message) {
+        super(message);
+    }
+}

protocol/src/main/java/mc/protocol/di/ProtocolComponent.java

@@ -1,11 +0,0 @@
-package mc.protocol.di;
-
-import dagger.Component;
-import mc.protocol.NettyServer;
-
-@Component(modules = ProtocolModule.class)
-@ServerScope
-public interface ProtocolComponent {
-
-	NettyServer getNettyServer();
-}

protocol/src/main/java/mc/protocol/di/ProtocolModule.java

@@ -1,89 +0,0 @@
-package mc.protocol.di;
-
-import dagger.Module;
-import dagger.Provides;
-import io.netty.bootstrap.ServerBootstrap;
-import io.netty.channel.ChannelHandler;
-import io.netty.channel.ChannelInitializer;
-import io.netty.channel.ChannelPipeline;
-import io.netty.channel.nio.NioEventLoopGroup;
-import io.netty.channel.socket.SocketChannel;
-import io.netty.channel.socket.nio.NioServerSocketChannel;
-import io.netty.handler.logging.LogLevel;
-import io.netty.handler.logging.LoggingHandler;
-import mc.protocol.ChannelContext;
-import mc.protocol.NettyServer;
-import mc.protocol.PacketInboundHandler;
-import mc.protocol.State;
-import mc.protocol.io.codec.ProtocolDecoder;
-import mc.protocol.io.codec.ProtocolEncoder;
-import mc.protocol.io.codec.ProtocolSplitter;
-import mc.protocol.packets.Packet;
-import reactor.core.publisher.Sinks;
-
-import javax.annotation.Nonnull;
-import javax.inject.Provider;
-import java.util.LinkedHashMap;
-import java.util.Map;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-
-@Module
-public class ProtocolModule {
-
-	@SuppressWarnings("rawtypes")
-	@Provides
-	NettyServer provideServer(ServerBootstrap serverBootstrap,
-							  Map<Class<? extends Packet>, Sinks.Many<ChannelContext>> observedMap) {
-		return new NettyServer(serverBootstrap, observedMap);
-	}
-
-	@Provides
-	ServerBootstrap provideServerBootstrap(ChannelInitializer<SocketChannel> channelChannelInitializer) {
-		ServerBootstrap bootstrap = new ServerBootstrap();
-
-		bootstrap.group(new NioEventLoopGroup(1), new NioEventLoopGroup())
-				.channel(NioServerSocketChannel.class)
-				.childHandler(channelChannelInitializer);
-
-		return bootstrap;
-	}
-
-	@Provides
-	ChannelInitializer<SocketChannel> provideChannelChannelInitializer(
-			Provider<Map<String, ChannelHandler>> channelHandlerMapProvider) {
-
-		return new ChannelInitializer<>() {
-			@Override
-			protected void initChannel(@Nonnull SocketChannel socketChannel) {
-				ChannelPipeline pipeline = socketChannel.pipeline();
-				channelHandlerMapProvider.get().forEach(pipeline::addLast);
-			}
-		};
-	}
-
-	@SuppressWarnings("rawtypes")
-	@Provides
-	Map<String, ChannelHandler> provideChannelHandlerMap(
-			Map<Class<? extends Packet>, Sinks.Many<ChannelContext>> observedMap) {
-
-		Map<String, ChannelHandler> map = new LinkedHashMap<>();
-
-		map.put("packet_splitter", new ProtocolSplitter());
-		map.put("logger", new LoggingHandler(LogLevel.DEBUG));
-		map.put("packet_decoder", new ProtocolDecoder(true));
-		map.put("packet_encoder", new ProtocolEncoder());
-		map.put("packet_handler", new PacketInboundHandler(observedMap));
-
-		return map;
-	}
-
-	@SuppressWarnings("rawtypes")
-	@Provides
-	@ServerScope
-	Map<Class<? extends Packet>, Sinks.Many<ChannelContext>> provideObservedMap() {
-		return Stream.of(State.values())
-				.flatMap(state -> state.getClientSidePackets().values().stream())
-				.collect(Collectors.toMap(packetClass -> packetClass, v -> Sinks.many().multicast().directBestEffort()));
-	}
-}

protocol/src/main/java/mc/protocol/di/ServerScope.java

@@ -1,10 +0,0 @@
-package mc.protocol.di;
-
-import javax.inject.Scope;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-
-@Scope
-@Retention(RetentionPolicy.RUNTIME)
-public @interface ServerScope {
-}

protocol/src/main/java/mc/protocol/handler/ProtocolHandlersBus.java

@@ -0,0 +1,31 @@
+package mc.protocol.handler;
+
+import io.netty.channel.ChannelHandlerContext;
+import mc.protocol.State;
+import mc.protocol.packets.ClientSidePacket;
+import mc.utils.Table;
+
+public class ProtocolHandlersBus {
+
+	@SuppressWarnings("rawtypes")
+	private final Table<State, Class<? extends ClientSidePacket>, Handler> table = new Table<>();
+
+	public <P extends ClientSidePacket> ProtocolHandlersBus addHandler(State state, Class<P> packetClass, Handler<P> handler) {
+		table.put(state, packetClass, handler);
+		return this;
+	}
+
+	@SuppressWarnings({ "rawtypes", "unchecked" })
+	public <P extends ClientSidePacket> void process(State state, ChannelHandlerContext ctx, P packet) {
+		Handler handler = table.getColumnAndRow(state, packet.getClass());
+
+		if (handler != null) {
+			handler.handle(ctx, packet);
+		}
+	}
+
+	@FunctionalInterface
+	public interface Handler<P extends ClientSidePacket> {
+		void handle(ChannelHandlerContext ctx, P packet);
+	}
+}

protocol/src/main/java/mc/protocol/handler/ProtocolInboundHandler.java

@@ -0,0 +1,42 @@
+package mc.protocol.handler;
+
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.SimpleChannelInboundHandler;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import mc.protocol.ProtocolAttributes;
+import mc.protocol.State;
+import mc.protocol.packets.ClientSidePacket;
+import mc.protocol.pool.ProtocolObjectPool;
+
+import java.io.IOException;
+import java.util.Objects;
+
+@Slf4j
+@RequiredArgsConstructor
+public class ProtocolInboundHandler extends SimpleChannelInboundHandler<ClientSidePacket> {
+
+	private static final String CLIENT_FORCE_DISCONNECTED_IOEXCEPTION_MESSAGE_RU = "Программа на вашем хост-компьютере разорвала установленное подключение";
+
+	private final ProtocolHandlersBus protocolHandlersBus;
+
+	@Override
+	protected void channelRead0(ChannelHandlerContext ctx, ClientSidePacket packet) {
+		State state = Objects.requireNonNull(ctx.channel().attr(ProtocolAttributes.STATE).get());
+		protocolHandlersBus.process(state, ctx, packet);
+
+		ProtocolObjectPool.packet().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.getMessage(), cause);
+			}
+		} else {
+			log.error("{}", cause.getMessage(), cause);
+		}
+	}
+}

protocol/src/main/java/mc/protocol/handler/codec/ProtocolDecoder.java

@@ -0,0 +1,67 @@
+package mc.protocol.handler.codec;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.handler.codec.ByteToMessageDecoder;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import mc.protocol.ProtocolAttributes;
+import mc.protocol.State;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.packets.ClientSidePacket;
+import mc.protocol.packets.UnknownPacket;
+import mc.protocol.pool.ProtocolObjectPool;
+
+import java.util.List;
+import java.util.Objects;
+
+@Slf4j
+@RequiredArgsConstructor
+public class ProtocolDecoder extends ByteToMessageDecoder {
+
+	private final boolean readUnknownPackets;
+
+	@Override
+	public void channelActive(ChannelHandlerContext ctx) {
+		ctx.channel().attr(ProtocolAttributes.STATE).set(State.HANDSHAKING);
+	}
+
+	@Override
+	protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) {
+		State state = Objects.requireNonNull(ctx.channel().attr(ProtocolAttributes.STATE).get());
+		NetByteBuf netByteBuf = ProtocolObjectPool.netByteBuf().borrowObject(in);
+
+		int packetId = netByteBuf.readVarInt();
+		Class<? extends ClientSidePacket> packetClass = state.getClientSidePacketById(packetId);
+		if (packetClass == null) {
+			log.warn("Unknown packet: State {} ; Id 0x{}", state, packetIdAsHexcode(packetId));
+
+			if (readUnknownPackets) {
+				UnknownPacket unknownPacket = ProtocolObjectPool.packet().borrowObject(UnknownPacket.class);
+				unknownPacket.setState(state);
+				unknownPacket.setId(packetId);
+				unknownPacket.setDataSize(netByteBuf.readableBytes());
+				unknownPacket.readSelf(netByteBuf);
+				out.add(unknownPacket);
+			} else {
+				netByteBuf.skipBytes(netByteBuf.readableBytes());
+			}
+		} else {
+			ClientSidePacket packet = ProtocolObjectPool.packet().borrowObject(packetClass);
+			packet.readSelf(netByteBuf);
+			if (log.isDebugEnabled()) {
+				log.debug("IN: {}:{}", state, packet);
+			}
+			out.add(packet);
+		}
+
+		ProtocolObjectPool.netByteBuf().returnObject(netByteBuf);
+	}
+
+	private static String packetIdAsHexcode(int packetId) {
+		String hexPacketId = Integer.toHexString(packetId).toUpperCase();
+		if (hexPacketId.length() == 1) hexPacketId = "0" + hexPacketId;
+
+		return hexPacketId;
+	}
+}

protocol/src/main/java/mc/protocol/handler/codec/ProtocolEncoder.java

@@ -0,0 +1,42 @@
+package mc.protocol.handler.codec;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.handler.codec.MessageToByteEncoder;
+import lombok.extern.slf4j.Slf4j;
+import mc.protocol.ProtocolAttributes;
+import mc.protocol.State;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.packets.ServerSidePacket;
+import mc.protocol.pool.ProtocolObjectPool;
+
+import java.util.Objects;
+
+@Slf4j
+public class ProtocolEncoder extends MessageToByteEncoder<ServerSidePacket> {
+
+	@Override
+	protected void encode(ChannelHandlerContext ctx, ServerSidePacket packet, ByteBuf out) {
+		State state = Objects.requireNonNull(ctx.channel().attr(ProtocolAttributes.STATE).get());
+		Integer packetId = state.getServerSidePacketId(packet.getClass());
+		if (packetId == null) {
+			log.error("Unknown send packet: State {} ; Class {}", state, packet.getClass());
+			return;
+		}
+
+		if (log.isDebugEnabled()) {
+			log.debug("OUT: {}:{}", state, packet);
+		}
+
+		NetByteBuf buffer = ProtocolObjectPool.netByteBuf().borrowObject();
+		buffer.writeVarInt(packetId);
+		packet.writeSelf(buffer);
+
+		NetByteBuf netByteBuf = ProtocolObjectPool.netByteBuf().borrowObject(out);
+		netByteBuf.writeVarInt(buffer.readableBytes());
+		netByteBuf.writeBytes(buffer);
+
+		ProtocolObjectPool.netByteBuf().returnObject(netByteBuf);
+		ProtocolObjectPool.netByteBuf().returnObject(buffer);
+	}
+}

protocol/src/main/java/mc/protocol/handler/codec/ProtocolSplitter.java

@@ -1,10 +1,11 @@
-package mc.protocol.io.codec;
+package mc.protocol.handler.codec;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.handler.codec.ByteToMessageDecoder;
-import mc.protocol.io.NetByteBuf;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.pool.ProtocolObjectPool;
 
 import java.util.List;
 
@@ -12,7 +13,7 @@ public class ProtocolSplitter extends ByteToMessageDecoder {
 
 	@Override
 	protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) {
-		NetByteBuf netByteBuf = new NetByteBuf(in);
+		NetByteBuf netByteBuf = ProtocolObjectPool.netByteBuf().borrowObject(in);
 		netByteBuf.markReaderIndex();
 
 		do {
@@ -25,7 +26,7 @@ public class ProtocolSplitter extends ByteToMessageDecoder {
 				}
 			}
 
-			int sizePacket = new NetByteBuf(Unpooled.wrappedBuffer(sizePacketRaw)).readVarInt();
+			int sizePacket = NetByteBuf.readVarInt(Unpooled.wrappedBuffer(sizePacketRaw));
 
 			if (netByteBuf.readableBytes() >= sizePacket) {
 				byte[] bytes = new byte[sizePacket];
@@ -36,5 +37,7 @@ public class ProtocolSplitter extends ByteToMessageDecoder {
 				break;
 			}
 		} while (netByteBuf.readableBytes() > 0);
+
+		ProtocolObjectPool.netByteBuf().returnObject(netByteBuf);
 	}
 }

protocol/src/main/java/mc/protocol/io/DecoderException.java

@@ -1,8 +0,0 @@
-package mc.protocol.io;
-
-public class DecoderException extends RuntimeException {
-
-    public DecoderException(String message) {
-        super(message);
-    }
-}

protocol/src/main/java/mc/protocol/io/codec/ProtocolDecoder.java

@@ -1,58 +0,0 @@
-package mc.protocol.io.codec;
-
-import io.netty.buffer.ByteBuf;
-import io.netty.channel.ChannelHandlerContext;
-import io.netty.handler.codec.ByteToMessageDecoder;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
-import mc.protocol.NetworkAttributes;
-import mc.protocol.State;
-import mc.protocol.io.NetByteBuf;
-import mc.protocol.packets.ClientSidePacket;
-import mc.protocol.packets.UnknownPacket;
-
-import java.util.List;
-import java.util.Objects;
-
-@Slf4j
-@RequiredArgsConstructor
-public class ProtocolDecoder extends ByteToMessageDecoder {
-
-	private final boolean readUnknownPackets;
-
-	@Override
-	public void channelActive(ChannelHandlerContext ctx) throws Exception {
-		ctx.channel().attr(NetworkAttributes.STATE).set(State.HANDSHAKING);
-		super.channelActive(ctx);
-	}
-
-	@Override
-	public void channelInactive(ChannelHandlerContext ctx) throws Exception {
-		ctx.channel().attr(NetworkAttributes.STATE).set(null);
-		super.channelInactive(ctx);
-	}
-
-	@Override
-	protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
-		State state = Objects.requireNonNull(ctx.channel().attr(NetworkAttributes.STATE).get());
-		NetByteBuf netByteBuf = new NetByteBuf(in);
-
-		int packetId = netByteBuf.readVarInt();
-		Class<? extends ClientSidePacket> packetClass = state.getClientSidePacketById(packetId);
-		if (packetClass == null) {
-			log.warn("Unkown packet: State {} ; Id {}", state, packetId);
-
-			if (readUnknownPackets) {
-				UnknownPacket unknownPacket = new UnknownPacket(state, packetId, netByteBuf.readableBytes());
-				unknownPacket.readSelf(netByteBuf);
-				out.add(unknownPacket);
-			} else {
-				netByteBuf.skipBytes(netByteBuf.readableBytes());
-			}
-		} else {
-			ClientSidePacket packet = packetClass.getDeclaredConstructor().newInstance();
-			packet.readSelf(netByteBuf);
-			out.add(packet);
-		}
-	}
-}

protocol/src/main/java/mc/protocol/io/codec/ProtocolEncoder.java

@@ -1,29 +0,0 @@
-package mc.protocol.io.codec;
-
-import io.netty.buffer.ByteBuf;
-import io.netty.buffer.Unpooled;
-import io.netty.channel.ChannelHandlerContext;
-import io.netty.handler.codec.MessageToByteEncoder;
-import mc.protocol.NetworkAttributes;
-import mc.protocol.State;
-import mc.protocol.io.NetByteBuf;
-import mc.protocol.packets.ServerSidePacket;
-
-import java.util.Objects;
-
-public class ProtocolEncoder extends MessageToByteEncoder<ServerSidePacket> {
-
-	@Override
-	protected void encode(ChannelHandlerContext ctx, ServerSidePacket packet, ByteBuf out) {
-		State state = ctx.channel().attr(NetworkAttributes.STATE).get();
-		int packetId = Objects.requireNonNull(state.getServerSidePacketId(packet.getClass()));
-
-		NetByteBuf buffer = new NetByteBuf(Unpooled.buffer());
-		buffer.writeVarInt(packetId);
-		packet.writeSelf(buffer);
-
-		NetByteBuf netByteBuf = new NetByteBuf(out);
-		netByteBuf.writeVarInt(buffer.readableBytes());
-		netByteBuf.writeBytes(buffer);
-	}
-}

protocol/src/main/java/mc/protocol/model/BlockLocation.java

@@ -0,0 +1,11 @@
+package mc.protocol.model;
+
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
+import mc.utils.vector.Vector3i;
+
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+public class BlockLocation extends Vector3i {
+
+}

protocol/src/main/java/mc/protocol/model/ChunkSectionLocation.java

@@ -0,0 +1,10 @@
+package mc.protocol.model;
+
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
+import mc.utils.vector.Vector3i;
+
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+public class ChunkSectionLocation extends Vector3i {
+}

protocol/src/main/java/mc/protocol/model/Location.java

@@ -0,0 +1,10 @@
+package mc.protocol.model;
+
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
+import mc.utils.vector.Vector3d;
+
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+public class Location extends Vector3d {
+}

protocol/src/main/java/mc/protocol/model/Look.java

@@ -0,0 +1,26 @@
+package mc.protocol.model;
+
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
+import mc.utils.vector.Vector2f;
+
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+public class Look extends Vector2f {
+
+	/**
+	 * Equal X
+	 * @return X
+	 */
+	public float getYaw() {
+		return this.getX();
+	}
+
+	/**
+	 * Equal Y
+	 * @return Y
+	 */
+	public float getPitch() {
+		return this.getY();
+	}
+}

protocol/src/main/java/mc/protocol/model/ServerInfoSerializer.java

@@ -1,10 +1,10 @@
-package mc.protocol.serializer;
+package mc.protocol.model;
 
 import com.eclipsesource.json.Json;
 import com.eclipsesource.json.JsonArray;
 import com.eclipsesource.json.JsonObject;
 import lombok.experimental.UtilityClass;
-import mc.protocol.model.ServerInfo;
+import mc.protocol.model.text.TextSerializer;
 
 import java.util.Spliterator;
 import java.util.Spliterators;
@@ -14,7 +14,11 @@ import java.util.stream.StreamSupport;
 @UtilityClass
 public class ServerInfoSerializer {
 
-	public JsonObject toJsonObject(ServerInfo info) {
+	public String toStringPlain(ServerInfo info) {
+		return toJsonObject(info).toString();
+	}
+
+	private JsonObject toJsonObject(ServerInfo info) {
 		JsonObject jsonObject = Json.object()
 				.add("version", createVersionObj(info))
 				.add("players", createPlayersObj(info))

protocol/src/main/java/mc/protocol/model/text/TextSerializer.java

@@ -1,12 +1,9 @@
-package mc.protocol.serializer;
+package mc.protocol.model.text;
 
 import com.eclipsesource.json.Json;
 import com.eclipsesource.json.JsonArray;
 import com.eclipsesource.json.JsonObject;
 import lombok.experimental.UtilityClass;
-import mc.protocol.model.text.Text;
-import mc.protocol.model.text.TextColor;
-import mc.protocol.model.text.TextStyle;
 
 import java.util.Map;
 
@@ -16,6 +13,10 @@ public class TextSerializer {
 	private static final Map<Character, TextStyle> legacyStyleCodes;
 	private static final Map<Character, TextColor> legacyColorCodes;
 
+	public String toStringPlain(Text text) {
+		return toJsonObject(text).toString();
+	}
+
 	public JsonObject toJsonObject(Text text) {
 		JsonObject jsonObject = Json.object();
 

protocol/src/main/java/mc/protocol/packets/ClientSidePacket.java

@@ -1,11 +1,12 @@
 package mc.protocol.packets;
 
-import mc.protocol.io.NetByteBuf;
+import mc.protocol.buffer.NetByteBuf;
+import mc.utils.pool.Passivable;
 
 /**
  * Пакеты отправляемые клиентом.
  */
-public interface ClientSidePacket extends Packet {
+public interface ClientSidePacket extends Packet, Passivable {
 
 	void readSelf(NetByteBuf netByteBuf);
 }

protocol/src/main/java/mc/protocol/packets/EmptyPacket.java

@@ -1,16 +0,0 @@
-package mc.protocol.packets;
-
-import mc.protocol.io.NetByteBuf;
-
-public abstract class EmptyPacket implements ClientSidePacket, ServerSidePacket {
-
-	@Override
-	public void readSelf(NetByteBuf netByteBuf) {
-		// empty
-	}
-
-	@Override
-	public void writeSelf(NetByteBuf netByteBuf) {
-		// empty
-	}
-}

protocol/src/main/java/mc/protocol/packets/KeepAlivePacket.java

@@ -1,20 +1,13 @@
 package mc.protocol.packets;
 
 import lombok.Data;
-import mc.protocol.io.NetByteBuf;
+import mc.protocol.buffer.NetByteBuf;
 
 /**
  * Пинг-пакет.
  *
  * <p>Эхо-пакет, которым проверяется качество соединения между <b>Клиентом</b> и <b>Сервером</b>.</p>
  *
- * <p>По спецификации:</p>
- * <oi>
- *     <li>если <b>Сервер</b> не ответил <b>Клиенту</b> в течении 20 секунд, <b>Клиент</b> отключается
- *     и выдаёт ошибку <i>"Timed out"</i>.</li>
- *     <li>если <b>Клиент</b> не отвечает <b>Серверу</b> в течении 30 секунд, <b>Сервер</b> отключает <b>Клиента</b>.</li>
- * </oi>
- *
  * <p>Структура пакета</p>
  * <pre>
  * | FIELD   | TYPE | NOTES                  |
@@ -22,12 +15,19 @@ import mc.protocol.io.NetByteBuf;
  * | Payload | Long | Любое уникальное число |
  * </pre>
  *
- * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=7368#Keep_Alive">Keep Alive</a>
+ * <p>По спецификации:</p>
+ * <oi>
+ *     <li>если Сервер не ответил Клиенту в течении 20 секунд, Клиент отключается и выдаёт ошибку "Timed out";</li>
+ *     <li>если Клиент не отвечает Серверу в течении 30 секунд, Сервер отключает Клиента.</li>
+ * </oi>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Keep_Alive_.28clientbound.29">Keep Alive (clientbound)</a>
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Keep_Alive_.28serverbound.29">Keep Alive (serverbound)</a>
  */
 @Data
-public class PingPacket implements ClientSidePacket, ServerSidePacket {
+public class KeepAlivePacket implements ClientSidePacket, ServerSidePacket {
 
-	private Long payload;
+	private long payload;
 
 	@Override
 	public void readSelf(NetByteBuf netByteBuf) {
@@ -38,4 +38,9 @@ public class PingPacket implements ClientSidePacket, ServerSidePacket {
 	public void writeSelf(NetByteBuf netByteBuf) {
 		netByteBuf.writeLong(payload);
 	}
+
+	@Override
+	public void passivate() {
+		this.payload = 0;
+	}
 }

protocol/src/main/java/mc/protocol/packets/Packet.java

@@ -1,9 +1,9 @@
 package mc.protocol.packets;
 
 /**
- * Пакет.
+ * Сетевой пакет.
  *
- * <p>Структура пакета</p>
+ * <p>Структура</p>
  * <pre>
  * | FIELD       | TYPE   | NOTES                                     |
  * |-------------|--------|-------------------------------------------|

protocol/src/main/java/mc/protocol/packets/ServerSidePacket.java

@@ -1,6 +1,6 @@
 package mc.protocol.packets;
 
-import mc.protocol.io.NetByteBuf;
+import mc.protocol.buffer.NetByteBuf;
 
 /**
  * Пакеты отправляемые сервером.

protocol/src/main/java/mc/protocol/packets/UnknownPacket.java

@@ -1,17 +1,19 @@
 package mc.protocol.packets;
 
 import lombok.Data;
+import lombok.NoArgsConstructor;
 import lombok.ToString;
 import mc.protocol.State;
-import mc.protocol.io.NetByteBuf;
+import mc.protocol.buffer.NetByteBuf;
 
+@NoArgsConstructor
 @Data
 @ToString(exclude = "rawData")
 public class UnknownPacket implements ClientSidePacket {
 
-    private final State state;
-    private final int id;
-    private final int dataSize;
+    private State state;
+    private int id;
+    private int dataSize;
     private byte[] rawData;
 
     @Override
@@ -19,4 +21,12 @@ public class UnknownPacket implements ClientSidePacket {
         rawData = new byte[dataSize];
         netByteBuf.readBytes(rawData);
     }
+
+    @Override
+    public void passivate() {
+        this.state = null;
+        this.id = 0;
+        this.dataSize = 0;
+        this.rawData = null;
+    }
 }

protocol/src/main/java/mc/protocol/packets/client/StatusServerRequestPacket.java

@@ -1,18 +0,0 @@
-package mc.protocol.packets.client;
-
-import lombok.EqualsAndHashCode;
-import lombok.NoArgsConstructor;
-import lombok.ToString;
-import mc.protocol.packets.EmptyPacket;
-
-/**
- * Status server packet, request.
- *
- * <p>Клиент запрашивает получение информации о сервере</p>
- */
-@NoArgsConstructor
-@EqualsAndHashCode(callSuper = false)
-@ToString
-public class StatusServerRequestPacket extends EmptyPacket {
-
-}

protocol/src/main/java/mc/protocol/packets/handshaking/client/HandshakePacket.java

@@ -1,11 +1,11 @@
-package mc.protocol.packets.client;
+package mc.protocol.packets.handshaking.client;
 
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.ToString;
 import mc.protocol.State;
-import mc.protocol.io.NetByteBuf;
+import mc.protocol.buffer.NetByteBuf;
 import mc.protocol.packets.ClientSidePacket;
 
 /**
@@ -18,14 +18,14 @@ import mc.protocol.packets.ClientSidePacket;
  * | FIELD            | TYPE           | NOTES                                        |
  * |------------------|----------------|----------------------------------------------|
  * | Protocol version | VarInt         | Версия протокола [1]                         |
- * | Server address   | Stirng         | Hostname или IP                              |
+ * | Server address   | Stirng (255)   | Hostname или IP                              |
  * | Server port      | Unsigned Short | Порт сервера                                 |
- * | Next stage       | VarInt         | ID State на который необходимо переключиться |
+ * | Next state       | VarInt         | ID State на который необходимо переключиться |
  *
- * [1] - <a href="https://wiki.vg/Protocol_version_numbers" target="_top">Protocol version numbers</a>
+ * [1] - <a href="https://wiki.vg/Protocol_version_numbers">Protocol version numbers</a>
  * </pre>
  *
- * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=7368#Handshake" target="_top">Handshake</a>
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Handshake">Handshake</a>
  * @see State
  */
 @NoArgsConstructor
@@ -41,10 +41,17 @@ public class HandshakePacket implements ClientSidePacket {
 
 	@Override
 	public void readSelf(NetByteBuf netByteBuf) {
-		protocolVersion = netByteBuf.readVarInt();
-		host = netByteBuf.readString(255);
-		port = netByteBuf.readUnsignedShort();
-		nextState = State.getById(netByteBuf.readVarInt());
+		this.protocolVersion = netByteBuf.readVarInt();
+		this.host = netByteBuf.readString(255);
+		this.port = netByteBuf.readUnsignedShort();
+		this.nextState = State.getById(netByteBuf.readVarInt());
 	}
 
+	@Override
+	public void passivate() {
+		this.protocolVersion = 0;
+		this.host = null;
+		this.port = 0;
+		this.nextState = null;
+	}
 }

protocol/src/main/java/mc/protocol/packets/login/client/LoginStartPacket.java

@@ -1,10 +1,10 @@
-package mc.protocol.packets.client;
+package mc.protocol.packets.login.client;
 
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.ToString;
-import mc.protocol.io.NetByteBuf;
+import mc.protocol.buffer.NetByteBuf;
 import mc.protocol.packets.ClientSidePacket;
 
 /**
@@ -19,7 +19,7 @@ import mc.protocol.packets.ClientSidePacket;
  * | Name  | String | Имя/Логин игрока |
  * </pre>
  *
- * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=7368#Login_Start" target="_top">Login start</a>
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Login_Start">Login start</a>
  */
 @NoArgsConstructor
 @Getter
@@ -34,4 +34,9 @@ public class LoginStartPacket implements ClientSidePacket {
 		this.name = netByteBuf.readString();
 	}
 
+	@Override
+	public void passivate() {
+		this.name = null;
+	}
+
 }

protocol/src/main/java/mc/protocol/packets/login/server/DisconnectPacket.java

@@ -1,11 +1,10 @@
-package mc.protocol.packets.server;
+package mc.protocol.packets.login.server;
 
 import lombok.Data;
 import mc.protocol.State;
-import mc.protocol.io.NetByteBuf;
+import mc.protocol.buffer.NetByteBuf;
 import mc.protocol.model.text.Text;
 import mc.protocol.packets.ServerSidePacket;
-import mc.protocol.serializer.TextSerializer;
 
 /**
  * Diconnect packet.
@@ -16,7 +15,7 @@ import mc.protocol.serializer.TextSerializer;
  * <pre>
  * | FIELD       | TYPE   | NOTES                            |
  * |-------------|--------|----------------------------------|
- * | JSON Reason | String | Причина отключения. Опционально. |
+ * | JSON Reason | Text   | Причина отключения. Опционально. |
  * </pre>
  *
  * <p>Пример JSON Reason</p>
@@ -26,7 +25,7 @@ import mc.protocol.serializer.TextSerializer;
  * }
  * </pre>
  *
- * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=7368#Disconnect_2" target="_top">Disconnect</a>
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Disconnect_.28login.29">Disconnect (login)</a>
  * @see State
  */
 @Data
@@ -39,6 +38,6 @@ public class DisconnectPacket implements ServerSidePacket {
 
 	@Override
 	public void writeSelf(NetByteBuf netByteBuf) {
-		netByteBuf.writeString(TextSerializer.toJsonObject(reason).toString());
+		netByteBuf.writeText(reason);
 	}
 }

protocol/src/main/java/mc/protocol/packets/login/server/LoginSuccessPacket.java

@@ -0,0 +1,33 @@
+package mc.protocol.packets.login.server;
+
+import lombok.Data;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.packets.ServerSidePacket;
+
+import java.util.UUID;
+
+/**
+ * Подтверждение успешного логина.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD    | TYPE        | NOTES                         |
+ * |----------|-------------|-------------------------------|
+ * | UUID     | String (36) | Уникальный ID игрока          |
+ * | Username | String (16) | Имя игрока, выданное сервером |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Login_Success">Login Success</a>
+ */
+@Data
+public class LoginSuccessPacket implements ServerSidePacket {
+
+	private UUID uuid;
+	private String name;
+
+	@Override
+	public void writeSelf(NetByteBuf netByteBuf) {
+		netByteBuf.writeString(this.uuid.toString());
+		netByteBuf.writeString(this.name);
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/client/CPlayerAbilitiesPacket.java

@@ -0,0 +1,68 @@
+package mc.protocol.packets.play.client;
+
+import lombok.Data;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.packets.ClientSidePacket;
+import mc.protocol.packets.ServerSidePacket;
+
+/**
+ * Характеристики игрока.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD                        | TYPE     | NOTES                                   |
+ * |------------------------------|----------|-----------------------------------------|
+ * | Flags                        | Byte     | Битовая маска флагов. См. ниже значения |
+ * | Flying Speed                 | Float    | Скорость полёта                         |
+ * | Field of View (FOV) Modifier | Float    | Поле зрения                             |
+ * </pre>
+ *
+ * <p>Флаги "Flags"</p>
+ * <pre>
+ * Bit 0x01 - Неуязвимость (Invulnerable)
+ * Bit 0x02 - В полёте (Flying)
+ * Bit 0x04 - Может летать (Allow Flying)
+ * Bit 0x08 - Creative Mode (Instant Break)
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Player_Abilities_(serverbound)">Player Abilities</a>
+ */
+@Data
+public class CPlayerAbilitiesPacket implements ClientSidePacket {
+
+	@SuppressWarnings("java:S116")
+	private byte $flags = 0;
+	private float flyingSpeed;
+	private float fieldOfView;
+
+	@Override
+	public void readSelf(NetByteBuf netByteBuf) {
+		this.$flags = netByteBuf.readByte();
+		this.flyingSpeed = netByteBuf.readFloat();
+		this.fieldOfView = netByteBuf.readFloat();
+	}
+
+	//FIXME использование value значений
+	public void setInvulnerable(boolean value) {
+		this.$flags = (byte) (this.$flags | 0x01);
+	}
+
+	public void setFlying(boolean value) {
+		this.$flags = (byte) (this.$flags | 0x02);
+	}
+
+	public void setCatFly(boolean value) {
+		this.$flags = (byte) (this.$flags | 0x04);
+	}
+
+	public void setCreativeMode(boolean value) {
+		this.$flags = (byte) (this.$flags | 0x08);
+	}
+
+	@Override
+	public void passivate() {
+		$flags = 0;
+		flyingSpeed = 0;
+		fieldOfView = 0;
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/client/CPlayerPositionAndLookPacket.java

@@ -0,0 +1,73 @@
+package mc.protocol.packets.play.client;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.model.Location;
+import mc.protocol.model.Look;
+import mc.protocol.packets.ClientSidePacket;
+import mc.protocol.pool.ProtocolObjectPool;
+
+/**
+ * Клиент сообщает о движении и повороте головы Игрока.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD     | TYPE    | NOTES                                                      |
+ * |-----------|---------|------------------------------------------------------------|
+ * | X         | Double  | Абсолютная позиция по X                                    |
+ * | Y         | Double  | Абсолютная позиция по Y.                                   |
+ * |           |         | Имеется ввиду позиция ног. Голова находиться выше на 1.62f |
+ * | Z         | Double  | Абсолютная позиция по Z                                    |
+ * | Yaw       | Float   | Абсолютный поворот головы по OX, в градусах                |
+ * | Pitch     | Float   | Абсолютный поворот головы по OY, в градусах                |
+ * | On Ground | Boolean | true, если Игрок находится на земле                        |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Player_Position_And_Look_.28serverbound.29">Player Position And Look (serverbound)</a>
+ */
+@NoArgsConstructor
+@Getter
+@EqualsAndHashCode
+@ToString
+public class CPlayerPositionAndLookPacket implements ClientSidePacket {
+
+	private Location position;
+	private Look look;
+	private boolean onGround;
+
+	@Override
+	public void readSelf(NetByteBuf netByteBuf) {
+		double x = netByteBuf.readDouble();
+		double y = netByteBuf.readDouble();
+		double z = netByteBuf.readDouble();
+		this.position = ProtocolObjectPool.location().borrowObject();
+		position.set(x, y, z);
+
+		float yaw = netByteBuf.readFloat();
+		float pitch = netByteBuf.readFloat();
+		this.look = ProtocolObjectPool.look().borrowObject();
+		this.look.set(yaw, pitch);
+
+		this.onGround = netByteBuf.readBoolean();
+	}
+
+	@Override
+	public void passivate() {
+		this.position.set(0, 0, 0);
+		ProtocolObjectPool.location().returnObject(this.position);
+		this.position = null;
+
+		this.look.set(0, 0);
+		ProtocolObjectPool.look().returnObject(this.look);
+		this.look = null;
+
+		this.onGround = false;
+	}
+
+	public double getYPositionHead() {
+		return this.position.getY() + 1.62f;
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/client/ClientSettingsPacket.java

@@ -0,0 +1,104 @@
+package mc.protocol.packets.play.client;
+
+import lombok.*;
+import mc.protocol.utils.ChatMode;
+import mc.protocol.utils.Hand;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.packets.ClientSidePacket;
+
+/**
+ * Client settings packet.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD                | TYPE          | NOTES                                             |
+ * |--------------------  |---------------|---------------------------------------------------|
+ * | Locale               | String (16)   | например en_gb                                    |
+ * | View Distance        | Byte          | Дистанция отрисовки со стороны Клиента, в чанках. |
+ * | Chat Mode            | VarInt        | 0: enabled                                        |
+ * |                      |               | 1: commands only                                  |
+ * |                      |               | 2: hidden                                         |
+ * |                      |               | [1]                                               |
+ * | Chat Colors          | Boolean       | “Colors” multiplayer setting (???)                |
+ * | Displayed Skin Parts | Unsigned Byte | битовая маска отображения скина. См. ниже         |
+ * | Main Hand            | VarInt        | 0: Left                                           |
+ * |                      |               | 1: Right                                          |
+ *
+ * [1] - <a href="https://wiki.vg/index.php?title=Chat&oldid=13165#Processing_chat">Processing chat</a>
+ * </pre>
+ *
+ * <p>Биты "Displayed Skin Parts"</p>
+ * <pre>
+ * Bit 0 (0x01): Плащ (Cape)
+ * Bit 1 (0x02): Рубашка (Jacket)
+ * Bit 2 (0x04): Левый рукав (Left Sleeve)
+ * Bit 3 (0x08): Правый рукав (Right Sleeve)
+ * Bit 4 (0x10): Левая штанина (Left Pants Leg)
+ * Bit 5 (0x20): Правая штанина (Right Pants Leg)
+ * Bit 6 (0x40): Шлем (Hat)
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Client_Settings">Client Settings</a>
+ */
+@NoArgsConstructor
+@Getter
+@EqualsAndHashCode
+@ToString
+public class ClientSettingsPacket implements ClientSidePacket {
+
+	private String locale;
+	private int viewDistance;
+	private ChatMode chatMode;
+	private boolean chatColors;
+	@SuppressWarnings("java:S116")
+	private int $displayedSkinPartsBitMask;
+	private Hand mainHand;
+
+	@Override
+	public void readSelf(NetByteBuf netByteBuf) {
+		this.locale = netByteBuf.readString(16);
+		this.viewDistance = netByteBuf.readByte();
+		this.chatMode = ChatMode.valueById(netByteBuf.readVarInt());
+		this.chatColors = netByteBuf.readBoolean();
+		this.$displayedSkinPartsBitMask = netByteBuf.readUnsignedByte();
+		this.mainHand = Hand.valueById(netByteBuf.readVarInt());
+	}
+
+	@Override
+	public void passivate() {
+		this.locale = null;
+		this.viewDistance = 0;
+		this.chatMode = null;
+		this.chatColors = false;
+		this.$displayedSkinPartsBitMask = 0;
+		this.mainHand = null;
+	}
+
+	public boolean isCapeEnabled() {
+		return ($displayedSkinPartsBitMask & 0x01) > 0;
+	}
+
+	public boolean isJacketEnabled() {
+		return ($displayedSkinPartsBitMask & 0x02) > 0;
+	}
+
+	public boolean isLeftSleeveEnabled() {
+		return ($displayedSkinPartsBitMask & 0x04) > 0;
+	}
+
+	public boolean isRightSleeveEnabled() {
+		return ($displayedSkinPartsBitMask & 0x08) > 0;
+	}
+
+	public boolean isLeftPantsEnabled() {
+		return ($displayedSkinPartsBitMask & 0x10) > 0;
+	}
+
+	public boolean isRightPantsEnabled() {
+		return ($displayedSkinPartsBitMask & 0x20) > 0;
+	}
+
+	public boolean isHatEnabled() {
+		return ($displayedSkinPartsBitMask & 0x40) > 0;
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/client/EntityActionPacket.java

@@ -0,0 +1,77 @@
+package mc.protocol.packets.play.client;
+
+import lombok.*;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.packets.ClientSidePacket;
+
+import javax.annotation.Nullable;
+
+/**
+ * Entity Action packet.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD      | TYPE   | NOTES                                     |
+ * |------------|--------|-------------------------------------------|
+ * | Entity ID  | VarInt | ID игрока                                 |
+ * | Action ID  | VarInt | ID действия                               |
+ * | Jump Boost | VarInt | Используется только при "Action ID" = 5.  |
+ * |            |        | В этом случае значение будет от 0 до 100. |
+ * |            |        | В остальных случаях значение 0.           |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Entity_Action" target="_top">Entity Action</a>
+ */
+@NoArgsConstructor
+@Getter
+@EqualsAndHashCode
+@ToString
+public class EntityActionPacket implements ClientSidePacket {
+
+	private Integer entityId;
+	private Action action;
+	private Integer jumpBoost;
+
+	@Override
+	public void readSelf(NetByteBuf netByteBuf) {
+		this.entityId = netByteBuf.readVarInt();
+		int actionId = netByteBuf.readVarInt();
+		this.jumpBoost = netByteBuf.readVarInt();
+
+		this.action = Action.valueOfCode(actionId);
+	}
+
+	@Override
+	public void passivate() {
+		this.entityId = null;
+		this.action = null;
+		this.jumpBoost = null;
+	}
+
+	@RequiredArgsConstructor
+	public enum Action {
+		START_SNEAKING(0),
+		STOP_SNEAKING(1),
+		LEAVE_BED(2),
+		START_SPRINTING(3),
+		STOP_SPRINTING(4),
+		START_JUMP_WITH_HORSE(5),
+		STOP_JUMP_WITH_HORSE(6),
+		OPEN_HORSE_INVENTORY(7),
+		START_FLYING_WITH_ELYTRA(8);
+
+		@Nullable
+		public static Action valueOfCode(int code) {
+			for (Action action : Action.values()) {
+				if (action.code == code) {
+					return action;
+				}
+			}
+
+			return null;
+		}
+
+		@Getter
+		private final int code;
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/client/HandAnimationPacket.java

@@ -0,0 +1,42 @@
+package mc.protocol.packets.play.client;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.packets.ClientSidePacket;
+import mc.protocol.utils.Hand;
+
+/**
+ * Отправляется, когда Игрок взмахивает рукой.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD | TYPE    | NOTES                        |
+ * |-------|---------|------------------------------|
+ * | Hand  | VarInt  | Используемая рука в анимации |
+ * |       |         | - 0: основная рука           |
+ * |       |         | - 1: левая рука              |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Animation_.28serverbound.29">Animation (serverbound)</a>
+ */
+@NoArgsConstructor
+@Getter
+@EqualsAndHashCode
+@ToString
+public class HandAnimationPacket implements ClientSidePacket {
+
+	private Hand hand;
+
+	@Override
+	public void readSelf(NetByteBuf netByteBuf) {
+		this.hand = Hand.valueById(netByteBuf.readVarInt());
+	}
+
+	@Override
+	public void passivate() {
+		this.hand = null;
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/client/PlayerBlockPlacementPacket.java

@@ -0,0 +1,78 @@
+package mc.protocol.packets.play.client;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.model.BlockLocation;
+import mc.protocol.packets.ClientSidePacket;
+import mc.protocol.utils.Face;
+import mc.protocol.utils.Hand;
+import mc.protocol.utils.SerializeUtil;
+import mc.utils.vector.Vector3f;
+
+/**
+ * Игрок размещает блок.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD             | TYPE     | NOTES                                                                     |
+ * |-------------------|----------|---------------------------------------------------------------------------|
+ * | Location          | Position | Позиция блока                                                             |
+ * | Face              | VarInt   | Сторона блока, к которому ставится новый блок                             |
+ * | Hand              | VarInt   | Используемая рука                                                         |
+ * |                   |          | - 0: основная рука                                                        |
+ * |                   |          | - 1: левая рука                                                           |
+ * | Cursor Position X | Float    | Положение перекрестия на блоке, от 0 до 1 с увеличением с West на East.   |
+ * | Cursor Position Y | Float    | Положение перекрестия на блоке, от 0 до 1 с увеличением с Bottom на Top.  |
+ * | Cursor Position Z | Float    | Положение перекрестия на блоке, от 0 до 1 с увеличением с North на South. |
+ * </pre>
+ *
+ * <p>Значения Стороны блока</p>
+ * <pre>
+ * | VALUE | OFFCET | FACE   |
+ * |-------|--------|--------|
+ * | 0     | -Y     | Bottom |
+ * | 1     | +Y     | Top    |
+ * | 2     | -Z     | North  |
+ * | 3     | +Z     | South  |
+ * | 4     | -X     | West   |
+ * | 5     | +X     | East   |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Player_Block_Placement">Player Block Placement</a>
+ */
+@NoArgsConstructor
+@Getter
+@EqualsAndHashCode
+@ToString
+public class PlayerBlockPlacementPacket implements ClientSidePacket {
+
+	private BlockLocation location;
+	private Face face;
+	private Hand hand;
+	private Vector3f cursorPosition;
+
+	@Override
+	public void readSelf(NetByteBuf netByteBuf) {
+		this.location = SerializeUtil.long2location(netByteBuf.readLong());
+		this.face = Face.valueById(netByteBuf.readVarInt());
+		this.hand = Hand.valueById(netByteBuf.readVarInt());
+
+		this.cursorPosition = new Vector3f();
+		this.cursorPosition.set(
+				netByteBuf.readFloat(),
+				netByteBuf.readFloat(),
+				netByteBuf.readFloat()
+		);
+	}
+
+	@Override
+	public void passivate() {
+		this.location = null;
+		this.face = null;
+		this.hand = null;
+		this.cursorPosition = null;
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/client/PlayerDiggingAndMorePacket.java

@@ -0,0 +1,82 @@
+package mc.protocol.packets.play.client;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.model.BlockLocation;
+import mc.protocol.packets.ClientSidePacket;
+import mc.protocol.utils.DiggingStatus;
+import mc.protocol.utils.Face;
+import mc.protocol.utils.SerializeUtil;
+
+/**
+ * Клиент копает, ломает блок (и не только).
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD    | TYPE     | NOTES                                    |
+ * |----------|----------|------------------------------------------|
+ * | Status   | VarInt   | Действие Игрока к блоку                  |
+ * | Location | Position | Позиция блока                            |
+ * | Face     | Byte     | Сторона блока, с которой взаимодействуют |
+ * </pre>
+ *
+ * <p>Возможные действия Игрока к блоку</p>
+ * <pre>
+ * | VALUE    | DESCRIPTION             | NOTES                                                                                 |
+ * |--------- |-------------------------|---------------------------------------------------------------------------------------|
+ * | 0        | Начал ломать            |                                                                                       |
+ * | 1        | Прекратил ломать        | Отправляется, когда Игрок отпустил клавишу "копания"                                  |
+ * | 2        | Закончил ломать         | Отправляется, когда Игрок закончил ломать блок. Т.е. блок готов сломаться             |
+ * | 3        | Бросает стек предметов  | Отправляется, когда Игрок с помощью клавиши "Выкинуть предмет"(Q)                     |
+ * |          |                         | с модификатором(??) для выкидывания полного стека.                                    |
+ * |          |                         | Поле Location всегда будет 0/0/0, а Face всегда -Y.                                   |
+ * | 4        | Бросает предмет         | Отправляется, когда Игрок выкидывает предмет.                                         |
+ * |          |                         | Поле Location всегда будет 0/0/0, а Face всегда -Y.                                   |
+ * | 5        | Стреляет стрелой /      | Указывает, что текущего состояние удерживаемого предмета должно                       |
+ * |          | Заканчивает есть /      | быть обновлено. Например, поедание еды, натягивание луков, использование ведер и т.д. |
+ * |          | и т.д.                  | Поле Location всегда будет 0/0/0, а Face всегда -Y.                                   |
+ * | 6        | Поменять предмет в руке | Отправляется когда Игрок меняет предмет предмет во второй руке через "свап".          |
+ * |          |                         | Поле Location всегда будет 0/0/0, а Face всегда -Y.                                   |
+ * </pre>
+ *
+ * <p>Значения Стороны блока</p>
+ * <pre>
+ * | VALUE | OFFCET | FACE   |
+ * |-------|--------|--------|
+ * | 0     | -Y     | Bottom |
+ * | 1     | +Y     | Top    |
+ * | 2     | -Z     | North  |
+ * | 3     | +Z     | South  |
+ * | 4     | -X     | West   |
+ * | 5     | +X     | East   |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Player_Digging">Player Digging</a>
+ */
+@NoArgsConstructor
+@Getter
+@EqualsAndHashCode
+@ToString
+public class PlayerDiggingAndMorePacket implements ClientSidePacket {
+
+	private DiggingStatus status;
+	private BlockLocation location;
+	private Face face;
+
+	@Override
+	public void readSelf(NetByteBuf netByteBuf) {
+		this.status = DiggingStatus.valueById(netByteBuf.readVarInt());
+		this.location = SerializeUtil.long2location(netByteBuf.readLong());
+		this.face = Face.valueById(netByteBuf.readByte());
+	}
+
+	@Override
+	public void passivate() {
+		this.status = null;
+		this.location = null;
+		this.face = null;
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/client/PlayerLookPacket.java

@@ -0,0 +1,53 @@
+package mc.protocol.packets.play.client;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.model.Look;
+import mc.protocol.packets.ClientSidePacket;
+import mc.protocol.pool.ProtocolObjectPool;
+
+/**
+ * Клиент сообщает о повороте головы Игрока.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD     | TYPE    | NOTES                                       |
+ * |-----------|---------|---------------------------------------------|
+ * | Yaw       | Float   | Абсолютный поворот головы по OX, в градусах |
+ * | Pitch     | Float   | Абсолютный поворот головы по OY, в градусах |
+ * | On Ground | Boolean | true, если Игрок находится на земле         |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Player_Look">Player Look</a>
+ */
+@NoArgsConstructor
+@Getter
+@EqualsAndHashCode
+@ToString
+public class PlayerLookPacket implements ClientSidePacket {
+
+	private Look look;
+	private boolean onGround;
+
+	@Override
+	public void readSelf(NetByteBuf netByteBuf) {
+		float yaw = netByteBuf.readFloat();
+		float pitch = netByteBuf.readFloat();
+		this.look = ProtocolObjectPool.look().borrowObject();
+		this.look.set(yaw, pitch);
+
+		this.onGround = netByteBuf.readBoolean();
+	}
+
+	@Override
+	public void passivate() {
+		this.look.set(0, 0);
+		ProtocolObjectPool.look().returnObject(this.look);
+		this.look = null;
+
+		this.onGround = false;
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/client/PlayerOnGroundPacket.java

@@ -0,0 +1,39 @@
+package mc.protocol.packets.play.client;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.packets.ClientSidePacket;
+
+/**
+ * Клиент сообщает: на земле ли он.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD     | TYPE    | NOTES                                       |
+ * |-----------|---------|---------------------------------------------|
+ * | On Ground | Boolean | true, если Игрок находится на земле         |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Player">Player</a>
+ */
+@NoArgsConstructor
+@Getter
+@EqualsAndHashCode
+@ToString
+public class PlayerOnGroundPacket implements ClientSidePacket {
+
+	private boolean onGround;
+
+	@Override
+	public void readSelf(NetByteBuf netByteBuf) {
+		this.onGround = netByteBuf.readBoolean();
+	}
+
+	@Override
+	public void passivate() {
+		onGround = false;
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/client/PlayerPositionPacket.java

@@ -0,0 +1,60 @@
+package mc.protocol.packets.play.client;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.model.Location;
+import mc.protocol.packets.ClientSidePacket;
+import mc.protocol.pool.ProtocolObjectPool;
+
+/**
+ * Клиент сообщает о движении Игрока.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD     | TYPE    | NOTES                               |
+ * |-----------|---------|-------------------------------------|
+ * | X         | Double  | Абсолютная позиция по X             |
+ * | Feet Y    | Double  | Абсолютная позиция ног по Y.        |
+ * |           |         | Голова находиться выше на 1.62f     |
+ * | Z         | Double  | Абсолютная позиция по Z             |
+ * | On Ground | Boolean | true, если Игрок находится на земле |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Player_Position">Player Position</a>
+ */
+@NoArgsConstructor
+@Getter
+@EqualsAndHashCode
+@ToString
+public class PlayerPositionPacket implements ClientSidePacket {
+
+	private Location position;
+	private boolean onGround;
+
+	@Override
+	public void readSelf(NetByteBuf netByteBuf) {
+		double x = netByteBuf.readDouble();
+		double y = netByteBuf.readDouble();
+		double z = netByteBuf.readDouble();
+		this.position = ProtocolObjectPool.location().borrowObject();
+		this.position.set(x, y, z);
+
+		this.onGround = netByteBuf.readBoolean();
+	}
+
+	@Override
+	public void passivate() {
+		this.position.set(0, 0, 0);
+		ProtocolObjectPool.location().returnObject(this.position);
+		this.position = null;
+
+		this.onGround = false;
+	}
+
+	public double getYPositionHead() {
+		return this.position.getY() + 1.62f;
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/client/PluginMessagePacket.java

@@ -0,0 +1,48 @@
+package mc.protocol.packets.play.client;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.packets.ClientSidePacket;
+
+/**
+ * Plugin Message packet.
+ *
+ * <p>Канал связи для модов и плагинов.</p>
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD        | TYPE        | NOTES            |
+ * |--------------|-------------|------------------|
+ * | Channel name | String (20) | Название канала  |
+ * | Data         | Byte array  | Любые данные     |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Plugin_Message_.28serverbound.29">Plugin Message (serverbound)</a>
+ * @see <a href="https://wiki.vg/index.php?title=Plugin_channels&oldid=14089">Plugin channels</a>
+ * @see <a href="https://dinnerbone.com/blog/2012/01/13/minecraft-plugin-channels-messaging/">Minecraft Plugin Channels + Messaging</a>
+ */
+@NoArgsConstructor
+@Getter
+@EqualsAndHashCode
+@ToString
+public class PluginMessagePacket implements ClientSidePacket {
+
+	private String channelName;
+	private byte[] rawData;
+
+	@Override
+	public void readSelf(NetByteBuf netByteBuf) {
+		this.channelName = netByteBuf.readString(20);
+		this.rawData = new byte[netByteBuf.readableBytes()];
+		netByteBuf.readBytes(this.rawData);
+	}
+
+	@Override
+	public void passivate() {
+		this.channelName = null;
+		this.rawData = null;
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/client/TeleportConfirmPacket.java

@@ -0,0 +1,41 @@
+package mc.protocol.packets.play.client;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.packets.ClientSidePacket;
+import mc.protocol.packets.play.server.SPlayerPositionAndLookPacket;
+
+/**
+ * Teleport сonfirm packet.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD       | TYPE   | NOTES                                                      |
+ * |-------------|--------|------------------------------------------------------------|
+ * | Teleport ID | VarInt | ID, который был выдан пакетом {@link SPlayerPositionAndLookPacket} |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=7368#Login_Start" target="_top">Login start</a>
+ * @see SPlayerPositionAndLookPacket
+ */
+@NoArgsConstructor
+@Getter
+@EqualsAndHashCode
+@ToString
+public class TeleportConfirmPacket implements ClientSidePacket {
+
+	private int teleportId;
+
+	@Override
+	public void readSelf(NetByteBuf netByteBuf) {
+		this.teleportId = netByteBuf.readVarInt();
+	}
+
+	@Override
+	public void passivate() {
+		this.teleportId = 0;
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/server/ChunkDataPacket.java

@@ -0,0 +1,121 @@
+package mc.protocol.packets.play.server;
+
+import io.netty.buffer.Unpooled;
+import lombok.Data;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.packets.ServerSidePacket;
+import mc.protocol.pool.ProtocolObjectPool;
+import mc.protocol.utils.SerializeUtil;
+import mc.protocol.world.Chunk;
+import mc.protocol.world.ChunkSection;
+
+/**
+ * Данные чанка.
+ *
+ * <h2>Структура пакета</h2>
+ * <pre>
+ * | FIELD                    | TYPE         | NOTES                                                                              |
+ * |--------------------------|------------- |------------------------------------------------------------------------------------|
+ * | Chunk X                  | Integer      | Координаты чанка (координата блока, делённая на 16, округленная в меньшую сторону) |
+ * | Chunk Z                  | Integer      | Координаты чанка (координата блока, делённая на 16, округленная в меньшую сторону) |
+ * | Is Full chunk            | Boolean      | См. Chunk Format                                                                   |
+ * | Available Sections       | VarInt       | Битовая маска, где каждый бит - это часть чанка (0-15)                             |
+ * | Size of Data             | VarInt       | Размер поля "Data"                                                                 |
+ * | Data                     | Byte array   | Данные чанка. См. Data Structure                                                   |
+ * | Number of block entities | VarInt       | Количество элементов в поле "Block entities"                                       |
+ * | Block entities           | Array of NBT | Все сущности в чанке                                                               |
+ * </pre>
+ *
+ * <h2>Data Structure</h2>
+ * <pre>
+ * | FIELD  | TYPE                   | NOTES                                                      |
+ * |--------|------------------------|------------------------------------------------------------|
+ * | Data   | Array of Chunk Section | См. Chunk Section Structure                                |
+ * | Biomes | Byte array             | Optional. Отправляются только если "Is Full chunk" == true |
+ * </pre>
+ *
+ * <h2>Chunk Section Structure</h2>
+ * <pre>
+ * | FIELD             | TYPE          | NOTES                                                               |
+ * |-------------------|---------------|---------------------------------------------------------------------|
+ * | Bits Per Block    | Unsigned Byte | Определяет, сколько битов используется для кодирования блока        |
+ * | Palette           | Byte array    | См. Palette Structure                                               |
+ * | Data Array Length | VarInt        |                                                                     |
+ * | Data Array        | Array of Long |                                                                     |
+ * | Block Light       | Byte array    | Половина байна на блок                                              |
+ * | Sky Light         | Byte array    | Optional. Только для LevelType == Overworld. Половина байна на блок |
+ * </pre>
+ *
+ * <h2>Palette Structure</h2>
+ * <p>Есть два типа: Indirect и Direct.</p>
+ * <p>
+ *     Indirect используется, если "Bits Per Block" < 9. При этом, если "Bits Per Block" <= 4,
+ *     то должно использоваться значение 4.
+ * </p>
+ * <p>Для Indirect формат следующий</p>
+ * <pre>
+ * | FIELD          | TYPE            | NOTES                          |
+ * |----------------|-----------------|--------------------------------|
+ * | Palette Length | VarInt          | Количество элементов в массиве |
+ * | Palette        | Array of VarInt | Идентификаторы блоков          |
+ * </pre>
+ *
+ * <p>Direct используется, если "Bits Per Block" >= 9</p>
+ * <p>Для Direct формат следующий</p>
+ * <pre>
+ * | FIELD                | TYPE   | NOTES       |
+ * |----------------------|--------|-------------|
+ * | Dummy Palette Length | VarInt | Всегда == 0 |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Chunk_Data">Chunk Data</a>
+ * @see <a href="https://wiki.vg/index.php?title=Chunk_Format&oldid=14135">Chunk Format</a>
+ */
+@Data
+public class ChunkDataPacket implements ServerSidePacket {
+
+	private static final int FULL_BIT_MASK = 0b11111111_11111111;
+
+	private Chunk chunk;
+
+	@Override
+	public void writeSelf(NetByteBuf netByteBuf) {
+		netByteBuf.writeInt(chunk.getX()); // Chunk X
+		netByteBuf.writeInt(chunk.getZ()); // Chunk Z
+
+		netByteBuf.writeBoolean(true); // Is Full chunk
+		netByteBuf.writeVarInt(FULL_BIT_MASK); // Available Sections
+
+		NetByteBuf data = createDataStructure();
+		netByteBuf.writeVarInt(data.readableBytes()); // Size of Data
+		netByteBuf.writeBytes(data); // Data
+
+		netByteBuf.writeVarInt(0); // Number of block entities
+		// Block entities (NBT's)
+
+		ProtocolObjectPool.netByteBuf().returnObject(data);
+	}
+
+	private NetByteBuf createDataStructure() {
+		NetByteBuf dataStructure = ProtocolObjectPool.netByteBuf().borrowObject(Unpooled.buffer());
+
+		for (int h = 0; h < 16; h++) {
+			ChunkSection section = chunk.getSection(h);
+			NetByteBuf data = SerializeUtil.serializeChunkSection(section);
+			dataStructure.writeBytes(data); // Data
+			ProtocolObjectPool.netByteBuf().returnObject(data);
+		}
+
+		// <Biomes>
+		for (int z = 0; z < 16; z++) {
+			for (int x = 0; x < 16; x++) {
+				dataStructure.writeByte(chunk.getBiome(
+						(chunk.getX() << 4) + x,
+						(chunk.getZ() << 4) + z));
+			}
+		}
+		// </Biomes>
+
+		return dataStructure;
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/server/JoinGamePacket.java

@@ -0,0 +1,59 @@
+package mc.protocol.packets.play.server;
+
+import lombok.Data;
+import mc.protocol.utils.Difficulty;
+import mc.protocol.utils.GameMode;
+import mc.protocol.utils.LevelType;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.packets.ServerSidePacket;
+
+/**
+ * Join game packet.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD              | TYPE          | NOTES                                                                |
+ * |--------------------|---------------|----------------------------------------------------------------------|
+ * | Entity ID          | Integer       | ID сущности (игрока)                                                 |
+ * | Gamemode           | Unsigned Byte | 0: Survival                                                          |
+ * |                    |               | 1: Creative                                                          |
+ * |                    |               | 2: Adventure                                                         |
+ * |                    |               | 3: Spectator                                                         |
+ * |                    |               | Bit 3 (0x8) is the hardcore flag.                                    |
+ * | Dimension          | Integer       | -1: Nether                                                           |
+ * |                    |               | 0: Overworld                                                         |
+ * |                    |               | 1: End                                                               |
+ * | Difficulty         | Unsigned Byte | 0: peaceful                                                          |
+ * |                    |               | 1: easy                                                              |
+ * |                    |               | 2: normal                                                            |
+ * |                    |               | 3: hard                                                              |
+ * | Max Players        | Unsigned Byte | Когда-то использовался клиентом для                                  |
+ * |                    |               | отображения списка игроков. Теперь не используется                   |
+ * | Level Type         | String (16)   | Принимает одно из значений:                                          |
+ * |                    |               | default, flat, largeBiomes, amplified, default_1_1                   |
+ * | Reduced Debug Info | Boolean       | Если true, то Клиент отображает меньше отладочной информации (в F3?) |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Join_Game">Join Game</a>
+ */
+@Data
+public class JoinGamePacket implements ServerSidePacket {
+
+	private int entityId;
+	private GameMode gameMode;
+	private int dimension;
+	private Difficulty difficulty;
+	private LevelType levelType;
+	private boolean reducedDebugInfo;
+
+	@Override
+	public void writeSelf(NetByteBuf netByteBuf) {
+		netByteBuf.writeInt(entityId);
+		netByteBuf.writeUnsignedByte(gameMode.getId());
+		netByteBuf.writeInt(dimension);
+		netByteBuf.writeUnsignedByte(difficulty.getId());
+		netByteBuf.writeUnsignedByte(0); // Max Players, unused
+		netByteBuf.writeString(levelType.getType());
+		netByteBuf.writeBoolean(reducedDebugInfo);
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/server/SPlayerAbilitiesPacket.java

@@ -0,0 +1,60 @@
+package mc.protocol.packets.play.server;
+
+import lombok.Data;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.packets.ServerSidePacket;
+
+/**
+ * Характеристики игрока.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD                        | TYPE     | NOTES                                   |
+ * |------------------------------|----------|-----------------------------------------|
+ * | Flags                        | Byte     | Битовая маска флагов. См. ниже значения |
+ * | Flying Speed                 | Float    | Скорость полёта                         |
+ * | Field of View (FOV) Modifier | Float    | Поле зрения                             |
+ * </pre>
+ *
+ * <p>Флаги "Flags"</p>
+ * <pre>
+ * Bit 0x01 - Неуязвимость (Invulnerable)
+ * Bit 0x02 - В полёте (Flying)
+ * Bit 0x04 - Может летать (Allow Flying)
+ * Bit 0x08 - Creative Mode (Instant Break)
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Player_Abilities_.28clientbound.29">Player Abilities</a>
+ */
+@Data
+public class SPlayerAbilitiesPacket implements ServerSidePacket {
+
+	@SuppressWarnings("java:S116")
+	private byte $flags = 0;
+	private float flyingSpeed;
+	private float fieldOfView;
+
+	@Override
+	public void writeSelf(NetByteBuf netByteBuf) {
+		netByteBuf.writeByte(this.$flags);
+		netByteBuf.writeFloat(this.flyingSpeed);
+		netByteBuf.writeFloat(this.fieldOfView);
+	}
+
+	//FIXME использование value значений
+	public void setInvulnerable(boolean value) {
+		this.$flags = (byte) (this.$flags | 0x01);
+	}
+
+	public void setFlying(boolean value) {
+		this.$flags = (byte) (this.$flags | 0x02);
+	}
+
+	public void setCatFly(boolean value) {
+		this.$flags = (byte) (this.$flags | 0x04);
+	}
+
+	public void setCreativeMode(boolean value) {
+		this.$flags = (byte) (this.$flags | 0x08);
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/server/SPlayerPositionAndLookPacket.java

@@ -0,0 +1,83 @@
+package mc.protocol.packets.play.server;
+
+import lombok.Data;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.model.Location;
+import mc.protocol.model.Look;
+import mc.protocol.packets.ServerSidePacket;
+import mc.protocol.packets.play.client.TeleportConfirmPacket;
+
+/**
+ * Установка позиции и угла осмотра Игрока.
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD       | TYPE   | NOTES                                                                             |
+ * |-------------|--------|-----------------------------------------------------------------------------------|
+ * | X           | Double | Абсолютная или относительная позиция по X. Зависит от "Flags"                     |
+ * | Y           | Double | Абсолютная или относительная позиция по Y. Зависит от "Flags"                     |
+ * | Z           | Double | Абсолютная или относительная позиция по Z. Зависит от "Flags"                     |
+ * | Yaw         | Float  | Абсолютный или относительный поворот головы по OX, в градусах. Зависит от "Flags" |
+ * | Pitch       | Float  | Абсолютный или относительный поворот головы по OY, в градусах. Зависит от "Flags" |
+ * | Flags       | Byte   | Битовая маска значений флагов. См. значения ниже                                  |
+ * | Teleport ID | VarInt | ID для подтверждения клиентом перемещения Игрока                                  |
+ * </pre>
+ *
+ * <p>Значения "Flags"</p>
+ * <pre>
+ * | Field | Bit  |
+ * |-------|------|
+ * | X     | 0x01 |
+ * | Y     | 0x02 |
+ * | Z     | 0x04 |
+ * | X_ROT | 0x08 |
+ * | Y_ROT | 0x10 |
+ * </pre>
+ *
+ * <p>Примечание от Dinnerbone про "Flags":</p>
+ * <i>"It's a bitfield, X/Y/Z/Y_ROT/X_ROT. If X is set, the x value is relative and not absolute."</i>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Player_Position_And_Look_.28clientbound.29">Player Position And Look (clientbound)</a>
+ * @see TeleportConfirmPacket
+ */
+@Data
+public class SPlayerPositionAndLookPacket implements ServerSidePacket {
+
+	private Location position;
+	private Look look;
+	@SuppressWarnings("java:S116")
+	private byte $flags = 0;
+	private int teleportId;
+
+	@Override
+	public void writeSelf(NetByteBuf netByteBuf) {
+		netByteBuf.writeDouble(this.position.getX());
+		netByteBuf.writeDouble(this.position.getY());
+		netByteBuf.writeDouble(this.position.getZ());
+		netByteBuf.writeFloat(this.look.getYaw());
+		netByteBuf.writeFloat(this.look.getPitch());
+		netByteBuf.writeByte(this.$flags);
+		netByteBuf.writeVarInt(teleportId);
+	}
+
+	//FIXME использовать value значения
+	public void setFlagX(boolean value) {
+		this.$flags = (byte) (this.$flags | 0x01);
+	}
+
+	public void setFlagY(boolean value) {
+		this.$flags = (byte) (this.$flags | 0x02);
+	}
+
+	public void setFlagZ(boolean value) {
+		this.$flags = (byte) (this.$flags | 0x04);
+	}
+
+	public void setFlagXRot(boolean value) {
+		this.$flags = (byte) (this.$flags | 0x08);
+	}
+
+	public void setFlagYRot(boolean value) {
+		this.$flags = (byte) (this.$flags | 0x10);
+	}
+}

protocol/src/main/java/mc/protocol/packets/play/server/SpawnPositionPacket.java

@@ -0,0 +1,41 @@
+package mc.protocol.packets.play.server;
+
+import lombok.Data;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.model.Location;
+import mc.protocol.packets.ServerSidePacket;
+
+/**
+ * Спавн позиция игрока.
+ *
+ * <p>Используется призаходе игрока на сервер.</p>
+ *
+ * <p>Структура пакета</p>
+ * <pre>
+ * | FIELD    | TYPE     | NOTES                 |
+ * |----------|----------|-----------------------|
+ * | Location | Position | Локация спавна игрока |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=14204#Spawn_Position">Spawn Position</a>
+ */
+@Data
+public class SpawnPositionPacket implements ServerSidePacket {
+
+	private Location spawn;
+
+	@Override
+	public void writeSelf(NetByteBuf netByteBuf) {
+		long spawnSerialized =
+				((long) (floorDouble(spawn.getX()) & 0x3FFFFFF) << 38)
+				| ((long) (floorDouble(spawn.getY()) & 0xFFF) << 26)
+				| (floorDouble(spawn.getZ()) & 0x3FFFFFF);
+		netByteBuf.writeLong(spawnSerialized);
+	}
+
+	private static int floorDouble(double value) {
+		int i = (int) value;
+		return value < (double) i ? i - 1 : i;
+	}
+
+}

protocol/src/main/java/mc/protocol/packets/status/client/StatusServerRequestPacket.java

@@ -0,0 +1,34 @@
+package mc.protocol.packets.status.client;
+
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.packets.ClientSidePacket;
+import mc.protocol.packets.ServerSidePacket;
+
+/**
+ * Status server packet, request.
+ *
+ * <p>Клиент запрашивает получение информации о сервере</p>
+ */
+@NoArgsConstructor
+@EqualsAndHashCode(callSuper = false)
+@ToString
+public class StatusServerRequestPacket implements ClientSidePacket, ServerSidePacket {
+
+	@Override
+	public void readSelf(NetByteBuf netByteBuf) {
+		// empty
+	}
+
+	@Override
+	public void writeSelf(NetByteBuf netByteBuf) {
+		// empty
+	}
+
+	@Override
+	public void passivate() {
+		// pass
+	}
+}

protocol/src/main/java/mc/protocol/packets/status/server/StatusServerResponse.java

@@ -1,10 +1,8 @@
-package mc.protocol.packets.server;
+package mc.protocol.packets.status.server;
 
 import lombok.Data;
-import mc.protocol.io.NetByteBuf;
-import mc.protocol.model.ServerInfo;
+import mc.protocol.buffer.NetByteBuf;
 import mc.protocol.packets.ServerSidePacket;
-import mc.protocol.serializer.ServerInfoSerializer;
 
 /**
  * Status server packet, response.
@@ -52,10 +50,10 @@ public class StatusServerResponse implements ServerSidePacket {
 	/**
 	 * Информация о серере.
 	 */
-	private ServerInfo info;
+	private String info;
 
 	@Override
 	public void writeSelf(NetByteBuf netByteBuf) {
-		netByteBuf.writeString(ServerInfoSerializer.toJsonObject(info).toString());
+		netByteBuf.writeString(info);
 	}
 }

protocol/src/main/java/mc/protocol/pool/NetByteBufObjectPool.java

@@ -0,0 +1,39 @@
+package mc.protocol.pool;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.PooledByteBufAllocator;
+import lombok.SneakyThrows;
+import mc.protocol.buffer.NetByteBuf;
+import mc.utils.pool.ObjectPool;
+import mc.utils.pool.PassivablePooledObjectFactory;
+import org.apache.commons.pool2.impl.GenericObjectPool;
+
+@SuppressWarnings({ "rawtypes", "unchecked" })
+public class NetByteBufObjectPool implements ObjectPool<NetByteBuf> {
+
+	private final org.apache.commons.pool2.ObjectPool apacheObjectPool;
+
+	NetByteBufObjectPool() {
+		this.apacheObjectPool = new GenericObjectPool<>(new PassivablePooledObjectFactory<>(PooledNetByteBuf.class));
+	}
+
+	@Override
+	public NetByteBuf borrowObject() {
+		return borrowObject(PooledByteBufAllocator.DEFAULT.directBuffer());
+	}
+
+	@SneakyThrows
+	public NetByteBuf borrowObject(ByteBuf byteBuf) {
+		PooledNetByteBuf pooledNetByteBuf = (PooledNetByteBuf) apacheObjectPool.borrowObject();
+		pooledNetByteBuf.init(byteBuf);
+		return pooledNetByteBuf;
+	}
+
+	@Override
+	@SneakyThrows
+	public void returnObject(NetByteBuf netByteBuf) {
+		if (netByteBuf instanceof PooledNetByteBuf) {
+			apacheObjectPool.returnObject(netByteBuf);
+		}
+	}
+}

protocol/src/main/java/mc/protocol/pool/PooledNetByteBuf.java

@@ -0,0 +1,18 @@
+package mc.protocol.pool;
+
+import io.netty.buffer.ByteBuf;
+import mc.protocol.buffer.NetByteBuf;
+import mc.utils.pool.Passivable;
+
+public class PooledNetByteBuf extends NetByteBuf implements Passivable {
+
+	void init(ByteBuf byteBuf) {
+		this.byteBuf = byteBuf.retain();
+	}
+
+	@Override
+	public void passivate() {
+		this.byteBuf.release();
+		this.byteBuf = null;
+	}
+}

protocol/src/main/java/mc/protocol/pool/ProtocolObjectPool.java

@@ -0,0 +1,42 @@
+package mc.protocol.pool;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+import mc.protocol.model.ChunkSectionLocation;
+import mc.protocol.model.Location;
+import mc.protocol.model.Look;
+import mc.protocol.packets.ClientSidePacket;
+import mc.utils.pool.MultiObjectPool;
+import mc.utils.pool.ObjectPool;
+import mc.utils.pool.PassivableMultiObjectPool;
+import mc.utils.pool.SimpleObjectPool;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public final class ProtocolObjectPool {
+
+	private static final ObjectPool<Location> LOCATION_POOL = new SimpleObjectPool<>(Location.class);
+	private static final ObjectPool<ChunkSectionLocation> CHUNK_SECTION_LOCATION_POOL = new SimpleObjectPool<>(ChunkSectionLocation.class);
+	private static final ObjectPool<Look> LOOK_POOL = new SimpleObjectPool<>(Look.class);
+	private static final NetByteBufObjectPool NETBYTEBUF_POOL = new NetByteBufObjectPool();
+	private static final MultiObjectPool<ClientSidePacket> PACKET_POOL = new PassivableMultiObjectPool<>();
+
+	public static ObjectPool<Location> location() {
+		return LOCATION_POOL;
+	}
+
+	public static ObjectPool<ChunkSectionLocation> chunkSectionLocation() {
+		return CHUNK_SECTION_LOCATION_POOL;
+	}
+
+	public static ObjectPool<Look> look() {
+		return LOOK_POOL;
+	}
+
+	public static NetByteBufObjectPool netByteBuf() {
+		return NETBYTEBUF_POOL;
+	}
+
+	public static MultiObjectPool<ClientSidePacket> packet() {
+		return PACKET_POOL;
+	}
+}

protocol/src/main/java/mc/protocol/pool/UnpooledNetByteBuf.java

@@ -0,0 +1,11 @@
+package mc.protocol.pool;
+
+import io.netty.buffer.ByteBuf;
+import mc.protocol.buffer.NetByteBuf;
+
+public class UnpooledNetByteBuf extends NetByteBuf {
+
+	public UnpooledNetByteBuf(ByteBuf byteBuf) {
+		this.byteBuf = byteBuf;
+	}
+}

protocol/src/main/java/mc/protocol/utils/ChatMode.java

@@ -0,0 +1,20 @@
+package mc.protocol.utils;
+
+import javax.annotation.Nullable;
+
+public enum ChatMode {
+	FULL,
+	COMMANDS_ONLY,
+	HIDDEN;
+
+	@Nullable
+	public static ChatMode valueById(int id) {
+		// а зачем усложнять?
+		//@formatter:off
+		if      (id == 1) return FULL;
+		else if (id == 2) return COMMANDS_ONLY;
+		else if (id == 3) return HIDDEN;
+		else              return null;
+		//@formatter:on
+	}
+}

protocol/src/main/java/mc/protocol/utils/Difficulty.java

@@ -0,0 +1,15 @@
+package mc.protocol.utils;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+@Getter
+public enum Difficulty {
+	PEACEFUL(0),
+	EASY(1),
+	NORMAL(2),
+	HARD(3);
+
+	private final int id;
+}

protocol/src/main/java/mc/protocol/utils/DiggingStatus.java

@@ -0,0 +1,32 @@
+package mc.protocol.utils;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+import javax.annotation.Nullable;
+
+@RequiredArgsConstructor
+public enum DiggingStatus {
+
+	STARTED(0),
+	CANCELLED(1),
+	FINISHED(2),
+	DROP_ITEM_STACK(3),
+	DROP_ITEM(4),
+	HELT_UPDATE_STATE(5),
+	SWAP_HAND(6);
+
+	@Nullable
+	public static DiggingStatus valueById(int id) {
+		for (DiggingStatus diggingStatus : DiggingStatus.values()) {
+			if (diggingStatus.getId() == id) {
+				return diggingStatus;
+			}
+		}
+
+		return null;
+	}
+
+	@Getter
+	private final int id;
+}

protocol/src/main/java/mc/protocol/utils/Face.java

@@ -0,0 +1,31 @@
+package mc.protocol.utils;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+import javax.annotation.Nullable;
+
+@RequiredArgsConstructor
+public enum Face {
+
+	BOTTOM(0),
+	TOP(1),
+	NORTH(2),
+	SOUTH(3),
+	WEST(4),
+	EAST(5);
+
+	@Nullable
+	public static Face valueById(int id) {
+		for (Face face : Face.values()) {
+			if (face.getId() == id) {
+				return face;
+			}
+		}
+
+		return null;
+	}
+
+	@Getter
+	private final int id;
+}

protocol/src/main/java/mc/protocol/utils/GameMode.java

@@ -0,0 +1,15 @@
+package mc.protocol.utils;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+@Getter
+public enum GameMode {
+	SURVIVAL(0),
+	CREATIVE(1),
+	ADVENTURE(2),
+	SPECTATOR(3);
+
+	private final int id;
+}

protocol/src/main/java/mc/protocol/utils/Hand.java

@@ -0,0 +1,18 @@
+package mc.protocol.utils;
+
+import javax.annotation.Nullable;
+
+public enum Hand {
+	LEFT,
+	RIGHT;
+
+	@Nullable
+	public static Hand valueById(int id) {
+		// а зачем усложнять?
+		//@formatter:off
+		if      (id == 0) return LEFT;
+		else if (id == 1) return RIGHT;
+		else              return null;
+		//@formatter:on
+	}
+}

protocol/src/main/java/mc/protocol/utils/LevelType.java

@@ -0,0 +1,16 @@
+package mc.protocol.utils;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+@Getter
+public enum LevelType {
+	DEFAULT_TYPE("default"),
+	FLAT("flat"),
+	LARGE_BIOMES("largeBiomes"),
+	AMPLIFIED("amplified"),
+	DEFAULT_1_1("default_1_1");
+
+	private final String type;
+}

protocol/src/main/java/mc/protocol/utils/LocationUtils.java

@@ -0,0 +1,52 @@
+package mc.protocol.utils;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+import mc.protocol.model.BlockLocation;
+import mc.protocol.model.ChunkSectionLocation;
+import mc.protocol.model.Location;
+import mc.protocol.pool.ProtocolObjectPool;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public final class LocationUtils {
+
+	//region Unpooled
+	public static ChunkSectionLocation location2chunk(Location location) {
+		var chunkSectionLocation = new ChunkSectionLocation();
+		chunkSectionLocation.set(
+				(int) location.getX() >> 4,
+				(int) location.getY() >> 4,
+				(int) location.getZ() >> 4);
+		return chunkSectionLocation;
+	}
+
+	public static ChunkSectionLocation location2chunk(BlockLocation blockLocation) {
+		var chunkSectionLocation = new ChunkSectionLocation();
+		chunkSectionLocation.set(
+				blockLocation.getX() >> 4,
+				blockLocation.getY() >> 4,
+				blockLocation.getZ() >> 4);
+		return chunkSectionLocation;
+	}
+	//endregion
+
+	//region Pooled
+	public static ChunkSectionLocation location2chunkPooled(Location location) {
+		ChunkSectionLocation chunkSectionLocation = ProtocolObjectPool.chunkSectionLocation().borrowObject();
+		chunkSectionLocation.set(
+				(int) location.getX() >> 4,
+				(int) location.getY() >> 4,
+				(int) location.getZ() >> 4);
+		return chunkSectionLocation;
+	}
+
+	public static ChunkSectionLocation location2chunkPooled(BlockLocation blockLocation) {
+		ChunkSectionLocation chunkSectionLocation = ProtocolObjectPool.chunkSectionLocation().borrowObject();
+		chunkSectionLocation.set(
+				blockLocation.getX() >> 4,
+				blockLocation.getY() >> 4,
+				blockLocation.getZ() >> 4);
+		return chunkSectionLocation;
+	}
+	//endregion
+}

protocol/src/main/java/mc/protocol/utils/SerializeUtil.java

@@ -0,0 +1,77 @@
+package mc.protocol.utils;
+
+import io.netty.buffer.Unpooled;
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+import mc.protocol.buffer.NetByteBuf;
+import mc.protocol.model.BlockLocation;
+import mc.protocol.pool.ProtocolObjectPool;
+import mc.protocol.world.Block;
+import mc.protocol.world.ChunkSection;
+import mc.utils.array.BitArray;
+import mc.utils.array.BitByteArray;
+import mc.utils.array.BitLongArray;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public final class SerializeUtil {
+
+	private static final int BITS_PER_BLOCK = 13;
+	private static final int ALL_BLOCKS = 16 * 16 * 16;
+
+	public static NetByteBuf serializeChunkSection(ChunkSection section) {
+		BitArray blockArray = new BitLongArray(BITS_PER_BLOCK, ALL_BLOCKS);
+		BitArray blockLight = new BitByteArray(4, ALL_BLOCKS);
+		BitArray skyLight = new BitByteArray(4, ALL_BLOCKS);
+
+		for (int y = 0; y < 16; y++) {
+			for (int z = 0; z < 16; z++) {
+				for (int x = 0; x < 16; x++) {
+					Block block = section.getBlock(x, y, z);
+					int blockState = blockIdMetaSerialize(block.getId(), block.getMeta());
+
+					blockArray.put(blockState);
+					blockLight.put(block.getLight());
+					skyLight.put(section.getSkyLight(x, y, z));
+				}
+			}
+		}
+
+		NetByteBuf result = ProtocolObjectPool.netByteBuf().borrowObject(Unpooled.buffer());
+		result.writeUnsignedByte(BITS_PER_BLOCK); // Bits Per Block
+		result.writeVarInt(0); // Palette, Direct mode
+		result.writeVarInt(blockArray.size()); // Data Array Length
+		result.writeBytes(blockArray.byteBuffer()); // Data Array
+		result.writeBytes(blockLight.byteBuffer()); // Block Light
+		result.writeBytes(skyLight.byteBuffer()); // Sky Light
+
+		return result;
+	}
+
+	public static int blockIdMetaSerialize(int id, int meta) {
+		return (id << 4) | meta;
+	}
+
+	public static int[] blockIdMetaDeserialize(int blockState) {
+		return new int[]{
+				blockState >> 4,
+				blockState & 0b1111
+		};
+	}
+
+	public static long location2long(BlockLocation blockLocation) {
+		return ((long) (blockLocation.getX() & 0x3FFFFFF) << 38)
+				| ((long) (blockLocation.getZ() & 0x3FFFFFF) << 12)
+				| (blockLocation.getY() & 0xFFF);
+	}
+
+	public static BlockLocation long2location(long value) {
+		BlockLocation blockLocation = new BlockLocation();
+		blockLocation.set(
+				(int) (value >> 38),
+				(int) (value & 0xFFF),
+				(int) (value << 26 >> 38)
+		);
+
+		return blockLocation;
+	}
+}

protocol/src/main/java/mc/protocol/world/Block.java

@@ -0,0 +1,14 @@
+package mc.protocol.world;
+
+import mc.protocol.model.BlockLocation;
+
+public interface Block {
+
+	int getId();
+	int getMeta();
+
+	BlockLocation getLocation();
+
+	int getLight();
+	void setLight(int value);
+}

protocol/src/main/java/mc/protocol/world/Chunk.java

@@ -0,0 +1,10 @@
+package mc.protocol.world;
+
+public interface Chunk {
+
+	int getX();
+	int getZ();
+
+	ChunkSection getSection(int height);
+	byte getBiome(int x, int z);
+}

protocol/src/main/java/mc/protocol/world/ChunkSection.java

@@ -0,0 +1,14 @@
+package mc.protocol.world;
+
+import mc.protocol.model.BlockLocation;
+
+public interface ChunkSection {
+
+	int getY();
+
+	Block getBlock(int x, int y, int z);
+	Block getBlock(BlockLocation blockLocation);
+
+	int getSkyLight(int x, int y, int z);
+	int getSkyLight(BlockLocation blockLocation);
+}

protocol/src/main/java/mc/protocol/world/World.java

@@ -0,0 +1,15 @@
+package mc.protocol.world;
+
+import mc.protocol.model.ChunkSectionLocation;
+import mc.protocol.model.Location;
+import mc.protocol.utils.LevelType;
+
+public interface World {
+
+	LevelType getLevelType();
+
+	Location getSpawn();
+
+	Chunk getChunk(int x, int z);
+	Chunk getChunk(ChunkSectionLocation chunkSectionLocation);
+}

protocol/src/test/java/mc/protocol/buffer/NetByteBufReadTest.java

@@ -1,6 +1,7 @@
-package mc.protocol.io;
+package mc.protocol.buffer;
 
 import io.netty.buffer.Unpooled;
+import mc.protocol.pool.UnpooledNetByteBuf;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
@@ -16,7 +17,6 @@ import java.util.UUID;
 import java.util.stream.Stream;
 
 import static org.junit.jupiter.api.Assertions.*;
-import static org.junit.jupiter.api.Assertions.assertArrayEquals;
 
 class NetByteBufReadTest {
 
@@ -34,7 +34,7 @@ class NetByteBufReadTest {
 	void readBoolean(byte sourceByte, boolean expectedValue) {
 		baos.write(sourceByte);
 
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 
 		assertEquals(expectedValue, netByteBuf.readBoolean());
 	}
@@ -45,7 +45,7 @@ class NetByteBufReadTest {
 		random.nextBytes(bytes);
 		baos.write(bytes[0]);
 
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 
 		assertEquals(bytes[0], netByteBuf.readByte());
 	}
@@ -55,7 +55,7 @@ class NetByteBufReadTest {
 	void readUnsignedByte(byte sourceByte, int expectedValue) {
 		baos.write(sourceByte);
 
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 
 		assertEquals(expectedValue, netByteBuf.readUnsignedByte());
 	}
@@ -65,7 +65,7 @@ class NetByteBufReadTest {
 		int value = Integer.valueOf(random.nextInt()).shortValue();
 		new DataOutputStream(baos).writeShort(value);
 
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 
 		assertEquals(value, netByteBuf.readShort());
 	}
@@ -75,7 +75,7 @@ class NetByteBufReadTest {
 		int value = 32768;
 		new DataOutputStream(baos).writeShort(value);
 
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 
 		assertEquals(value, netByteBuf.readUnsignedShort());
 	}
@@ -90,7 +90,7 @@ class NetByteBufReadTest {
 
 		baos.write(bytes);
 
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 
 		assertEquals(string, netByteBuf.readString());
 	}
@@ -106,9 +106,9 @@ class NetByteBufReadTest {
 
 		baos.write(bytes);
 
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 
-		assertThrows(DecoderException.class, () -> netByteBuf.readString(length));
+		assertThrows(NetIOException.class, () -> netByteBuf.readString(length));
 	}
 
 	@Test
@@ -125,9 +125,9 @@ class NetByteBufReadTest {
 
 		baos.write(bytes);
 
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 
-		assertThrows(DecoderException.class, () -> netByteBuf.readString(-1));
+		assertThrows(NetIOException.class, () -> netByteBuf.readString(-1));
 	}
 
 	@ParameterizedTest
@@ -135,7 +135,7 @@ class NetByteBufReadTest {
 	void readVarInt(byte[] sourceBytes, int expectedValue) throws IOException {
 		baos.write(sourceBytes);
 
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 
 		assertEquals(expectedValue, netByteBuf.readVarInt());
 	}
@@ -144,7 +144,7 @@ class NetByteBufReadTest {
 	void readVarInt_tooBig() throws IOException {
 		baos.write(new byte[]{ (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0x0F });
 
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 
 		assertEquals(-1, netByteBuf.readVarInt());
 	}
@@ -154,7 +154,7 @@ class NetByteBufReadTest {
 	void readVarLong(byte[] sourceBytes, long expectedValue) throws IOException {
 		baos.write(sourceBytes);
 
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 
 		assertEquals(expectedValue, netByteBuf.readVarLong());
 	}
@@ -165,7 +165,7 @@ class NetByteBufReadTest {
 				(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
 				(byte) 0xFF, (byte) 0x0F });
 
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 
 		assertEquals(-1, netByteBuf.readVarLong());
 	}
@@ -197,7 +197,7 @@ class NetByteBufReadTest {
 				(byte) (leastSignificantBits & 0xFF)
 		});
 
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 
 		assertEquals(uuid, netByteBuf.readUUID());
 	}
@@ -209,7 +209,7 @@ class NetByteBufReadTest {
 		baos.write(bytes);
 
 		byte[] actualBytes = new byte[128];
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 
 		assertEquals(bytes.length, netByteBuf.readableBytes());
 
@@ -226,7 +226,7 @@ class NetByteBufReadTest {
 		baos.write(bytes);
 
 		byte[] buff = new byte[128];
-		NetByteBuf netByteBuf = new NetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(Unpooled.wrappedBuffer(baos.toByteArray()));
 		netByteBuf.readBytes(buff, 3, 11);
 
 		byte[] expectedBytes = new byte[11];

protocol/src/test/java/mc/protocol/buffer/NetByteBufWriteTest.java

@@ -1,7 +1,8 @@
-package mc.protocol.io;
+package mc.protocol.buffer;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
+import mc.protocol.pool.UnpooledNetByteBuf;
 import org.apache.commons.lang3.RandomStringUtils;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
@@ -30,7 +31,7 @@ class NetByteBufWriteTest {
 	@MethodSource("paramsWriteBoolean")
 	void writeBoolean(boolean sourceValue, byte expectedByte) {
 		ByteBuf byteBuf = Unpooled.buffer();
-		NetByteBuf netByteBuf = new NetByteBuf(byteBuf);
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(byteBuf);
 
 		netByteBuf.writeBoolean(sourceValue);
 
@@ -41,18 +42,28 @@ class NetByteBufWriteTest {
 	@MethodSource("paramsWriteByte")
 	void writeByte(byte sourceValue, byte expectedByte) {
 		ByteBuf byteBuf = Unpooled.buffer();
-		NetByteBuf netByteBuf = new NetByteBuf(byteBuf);
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(byteBuf);
 
 		netByteBuf.writeByte(sourceValue);
 
 		assertEquals(expectedByte, byteBuf.array()[0]);
 	}
 
+	@Test
+	void writeUnsignedByte() {
+		ByteBuf byteBuf = Unpooled.buffer();
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(byteBuf);
+
+		netByteBuf.writeUnsignedByte(129);
+
+		assertEquals(129, netByteBuf.readUnsignedByte());
+	}
+
 	@ParameterizedTest
 	@MethodSource("paramsWriteString")
 	void writeString(String string, int exceptedLength) {
 		ByteBuf byteBuf = Unpooled.buffer();
-		NetByteBuf netByteBuf = new NetByteBuf(byteBuf);
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(byteBuf);
 
 		netByteBuf.writeString(string);
 
@@ -71,11 +82,11 @@ class NetByteBufWriteTest {
 		String overSizeString = RandomStringUtils.randomAscii(Short.MAX_VALUE + Short.MAX_VALUE);
 
 		ByteBuf byteBuf = Unpooled.buffer();
-		NetByteBuf netByteBuf = new NetByteBuf(byteBuf);
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(byteBuf);
 
 		netByteBuf.writeString(overSizeString);
 
-		NetByteBuf netByteBuf2 = new NetByteBuf(byteBuf.copy());
+		NetByteBuf netByteBuf2 = new UnpooledNetByteBuf(byteBuf.copy());
 		String actualString = netByteBuf2.readString();
 
 		String expectedString = overSizeString.substring(0, Short.MAX_VALUE);
@@ -87,7 +98,7 @@ class NetByteBufWriteTest {
 	@MethodSource("paramsWriteVarInt")
 	void writeVarInt(int sourceValue, byte[] expectedBytes) {
 		ByteBuf byteBuf = Unpooled.buffer();
-		NetByteBuf netByteBuf = new NetByteBuf(byteBuf);
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(byteBuf);
 
 		netByteBuf.writeVarInt(sourceValue);
 		byte[] actualArray = netByteBuf.copy(0, netByteBuf.readableBytes()).array();
@@ -99,7 +110,7 @@ class NetByteBufWriteTest {
 	@MethodSource({ "paramsWriteVarInt", "paramsWriteVarLong" })
 	void writeVarLong(long sourceValue, byte[] expectedBytes) {
 		ByteBuf byteBuf = Unpooled.buffer();
-		NetByteBuf netByteBuf = new NetByteBuf(byteBuf);
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(byteBuf);
 
 		netByteBuf.writeVarLong(sourceValue);
 		byte[] actualArray = netByteBuf.copy(0, netByteBuf.readableBytes()).array();
@@ -112,7 +123,7 @@ class NetByteBufWriteTest {
 		final UUID uuid = UUID.randomUUID();
 
 		ByteBuf byteBuf = Unpooled.buffer();
-		NetByteBuf netByteBuf = new NetByteBuf(byteBuf);
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(byteBuf);
 
 		netByteBuf.writeUUID(uuid);
 
@@ -148,7 +159,7 @@ class NetByteBufWriteTest {
 		random.nextBytes(bytes);
 
 		ByteBuf byteBuf = Unpooled.buffer();
-		NetByteBuf netByteBuf = new NetByteBuf(byteBuf);
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(byteBuf);
 
 		netByteBuf.writeBytes(bytes);
 		byte[] actualArray = netByteBuf.copy(0, netByteBuf.readableBytes()).array();
@@ -162,7 +173,7 @@ class NetByteBufWriteTest {
 		random.nextBytes(bytes);
 
 		ByteBuf byteBuf = Unpooled.buffer();
-		NetByteBuf netByteBuf = new NetByteBuf(byteBuf);
+		NetByteBuf netByteBuf = new UnpooledNetByteBuf(byteBuf);
 
 		netByteBuf.writeBytes(bytes, 3, 11);
 

protocol/src/test/java/mc/protocol/handler/codec/ProtocolSplitterTest.java

@@ -0,0 +1,59 @@
+package mc.protocol.handler.codec;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import org.junit.jupiter.api.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class ProtocolSplitterTest {
+
+	byte[] expectedPacket1Bytes;
+	byte[] expectedPacket2Bytes;
+	byte[] bytes;
+
+	@Test
+	void split() {
+		prepare();
+
+		ByteBuf inputBuffer = Unpooled.wrappedBuffer(bytes);
+		List<Object> outputObject = new ArrayList<>();
+
+		ProtocolSplitter protocolSplitter = new ProtocolSplitter();
+		protocolSplitter.decode(null, inputBuffer, outputObject);
+
+		assertEquals(2, outputObject.size());
+		assertTrue(outputObject.get(0) instanceof ByteBuf);
+		assertArrayEquals(expectedPacket1Bytes, ((ByteBuf)outputObject.get(0)).array());
+		assertTrue(outputObject.get(1) instanceof ByteBuf);
+		assertArrayEquals(expectedPacket2Bytes, ((ByteBuf)outputObject.get(1)).array());
+	}
+
+	private void prepare() {
+		/*
+				 +-------------------------------------------------+
+				 |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |
+		+--------+-------------------------------------------------+----------------+
+		|00000000| 10 00 d4 02 09 31 32 37 2e 30 2e 30 2e 31 63 dd |.....127.0.0.1c.|
+		|00000010| 01 01 00                                        |...             |
+		+--------+-------------------------------------------------+----------------+
+		 */
+		expectedPacket1Bytes = new byte[]{
+				0x00, (byte) 0xd4, 0x02, 0x09, 0x31, 0x32, 0x37, 0x2e, 0x30, 0x2e, 0x30, 0x2e, 0x31, 0x63,
+				(byte) 0xdd, 0x01
+		};
+		expectedPacket2Bytes = new byte[]{
+				0x00
+		};
+		bytes = new byte[2 + expectedPacket1Bytes.length + expectedPacket2Bytes.length];
+		bytes[0] = 0x10;
+		System.arraycopy(expectedPacket1Bytes, 0,
+				bytes, 1, expectedPacket1Bytes.length);
+		bytes[1 + expectedPacket1Bytes.length] = 0x01;
+		System.arraycopy(expectedPacket2Bytes, 0,
+				bytes, 2 + expectedPacket1Bytes.length, expectedPacket2Bytes.length);
+	}
+}

protocol/src/test/java/mc/protocol/model/text/TextTest.java

@@ -1,24 +0,0 @@
-package mc.protocol.model.text;
-
-import org.junit.jupiter.api.Test;
-
-import java.util.List;
-
-import static org.junit.jupiter.api.Assertions.assertEquals;
-
-class TextTest {
-
-	@Test
-	void contentTest() {
-		Text actual;
-		Text expected;
-
-		actual = Text.builder().append("123").build();
-		expected = new Text(null, null, "123", null);
-		assertEquals(expected, actual);
-
-		actual = Text.builder().append("123").append(Text.of("456")).build();
-		expected = new Text(null, null, "123", List.of(Text.of("456")));
-		assertEquals(expected, actual);
-	}
-}

protocol/src/test/java/mc/protocol/serializer/TextSerializerTest.java

@@ -1,40 +0,0 @@
-package mc.protocol.serializer;
-
-import mc.protocol.model.text.Text;
-import mc.protocol.model.text.TextColor;
-import mc.protocol.model.text.TextStyle;
-import org.junit.jupiter.params.ParameterizedTest;
-import org.junit.jupiter.params.provider.Arguments;
-import org.junit.jupiter.params.provider.MethodSource;
-
-import java.util.stream.Stream;
-
-import static org.junit.jupiter.api.Assertions.assertEquals;
-
-class TextSerializerTest {
-
-	@ParameterizedTest
-	@MethodSource("paramsPlain")
-	void fromPlain(String sample, Text expected) {
-		Text actual = TextSerializer.fromPlain(sample);
-		assertEquals(expected, actual);
-	}
-
-	@SuppressWarnings("unused")
-	static Stream<Arguments> paramsPlain() {
-		return Stream.of(
-				Arguments.of("text", Text.of("text")),
-				Arguments.of("&&text", Text.of("&text")),
-				Arguments.of("&ztext", Text.of("text")),
-				Arguments.of("&4red_text", Text.of(TextColor.DARK_RED, "red_text")),
-				Arguments.of("&l&4red_text", Text.of(TextColor.DARK_RED, TextStyle.BOLD, "red_text")),
-				Arguments.of("&4&lred_text", Text.of(TextColor.DARK_RED, TextStyle.BOLD, "red_text")),
-
-				Arguments.of("&4red_text &eyellow_text", Text.builder()
-						.color(TextColor.DARK_RED)
-						.append("red_text ")
-						.append(Text.of(TextColor.YELLOW, "yellow_text"))
-						.build())
-		);
-	}
-}

server/build.gradle

@@ -15,7 +15,7 @@ apply from: rootDir.toPath().resolve('logic.gradle').toFile()
 apply plugin: 'application'
 
 application {
-    mainClassName = 'mc.server.Main'
+    mainClass.set('mc.server.Main')
 
     if (project.hasProperty('jvmArgs')) {
         applicationDefaultJvmArgs = List.of((project.jvmArgs as String).split('\\s+'))
@@ -23,13 +23,14 @@ application {
 }
 
 dependencies {
+    implementation project(':cli-parser')
     implementation project(':protocol')
 
     implementation libs.logger.logback
+    implementation libs.hocon
 
-    implementation libs.yaml
-    implementation libs.ioutils
-    implementation libs.jopt
+    implementation libs.netty.transport
+    implementation libs.netty.handler
 }
 
 shadowJar {

server/src/main/java/mc/server/Main.java

@@ -3,198 +3,110 @@ package mc.server;
 import ch.qos.logback.classic.LoggerContext;
 import ch.qos.logback.classic.joran.JoranConfigurator;
 import ch.qos.logback.core.joran.spi.JoranException;
-import joptsimple.OptionParser;
-import joptsimple.OptionSet;
-import joptsimple.util.PathConverter;
-import lombok.extern.slf4j.Slf4j;
-import mc.protocol.NettyServer;
-import mc.protocol.ProtocolConstant;
-import mc.protocol.model.ServerInfo;
-import mc.protocol.packets.PingPacket;
-import mc.protocol.packets.client.HandshakePacket;
-import mc.protocol.packets.client.LoginStartPacket;
-import mc.protocol.packets.client.StatusServerRequestPacket;
-import mc.protocol.packets.server.DisconnectPacket;
-import mc.protocol.packets.server.StatusServerResponse;
-import mc.protocol.serializer.TextSerializer;
-import mc.server.config.Config;
-import mc.server.di.ConfigModule;
-import mc.server.di.DaggerServerComponent;
-import mc.server.di.ServerComponent;
-import org.apache.commons.io.IOUtils;
+import com.typesafe.config.Config;
+import lombok.SneakyThrows;
+import mc.cliparser.CommandLine;
+import mc.cliparser.CommandLineParser;
+import mc.cliparser.Option;
+import mc.server.di.*;
+import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import javax.annotation.Nonnull;
+import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.OutputStream;
+import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
-import java.util.Base64;
-import java.util.Collections;
-import java.util.List;
 import java.util.Objects;
 
-@Slf4j
-@SuppressWarnings("java:S106")
 public class Main {
-	private static final String CLI_CONFIG = "config";
-	private static final String CLI_LOGCONFIG = "logconfig";
-
-	private void run(OptionSet optionSet) {
-		log.info("mc-project launch");
-
-		ConfigModule configModule = new ConfigModule((Path) optionSet.valueOf(CLI_CONFIG));
-
-		ServerComponent serverComponent = DaggerServerComponent.builder()
-				.configModule(configModule)
-				.build();
-
-		Config config = serverComponent.getConfig();
-
-		NettyServer server = NettyServer.createServer();
-
-		server.packetFlux(HandshakePacket.class)
-				.doOnNext(channel -> log.info("{}", channel.getPacket()))
-				.subscribe(channel -> channel.setState(channel.getPacket().getNextState()));
-
-		server.packetFlux(PingPacket.class)
-				.doOnNext(channel -> log.info("{}", channel.getPacket()))
-				.subscribe(channel -> channel.getCtx().writeAndFlush(channel.getPacket()).channel().disconnect());
-
-		server.packetFlux(StatusServerRequestPacket.class)
-				.doOnNext(channel -> log.info("{}", channel.getPacket()))
-				.subscribe(channel -> {
-					ServerInfo serverInfo = new ServerInfo();
-					serverInfo.version().name(ProtocolConstant.PROTOCOL_NAME);
-					serverInfo.version().protocol(ProtocolConstant.PROTOCOL_NUMBER);
-					serverInfo.players().max(config.players().maxOnlile());
-					serverInfo.players().online(config.players().onlile());
-					serverInfo.players().sample(Collections.emptyList());
-					serverInfo.description(TextSerializer.fromPlain(config.motd()));
-
-					if (config.iconPath() != null) {
-						serverInfo.favicon(faviconToBase64(config.iconPath()));
-					}
-
-					StatusServerResponse response = new StatusServerResponse();
-					response.setInfo(serverInfo);
-
-					channel.getCtx().writeAndFlush(response);
-				});
-
-		server.packetFlux(LoginStartPacket.class)
-				.doOnNext(channel -> log.info("{}", channel.getPacket()))
-				.subscribe(channel -> {
-					DisconnectPacket disconnectPacket = new DisconnectPacket();
-					disconnectPacket.setReason(TextSerializer.fromPlain(config.disconnectReason()));
-
-					channel.getCtx().writeAndFlush(disconnectPacket).channel().disconnect();
-				});
-
-		server.bind(config.server().host(), config.server().port());
-	}
 
 	public static void main(String[] args) throws IOException {
-		OptionParser optionParser = createOptionParser();
-		OptionSet optionSet = optionParser.parse(args);
+		//region Setup CommandLine
+		Option logconfigOption = Option.builder().longName("logconfig").hasArgs(true).build();
+		Option configOption = Option.builder().longName("config").hasArgs(true).build();
+		var cliParser = new CommandLineParser();
+		cliParser.addOption(logconfigOption);
+		cliParser.addOption(configOption);
 
-		if (optionSet.has("help")) {
-			try {
-				optionParser.printHelpOn(System.out);
-			} catch (IOException e) {
-				System.err.printf("Can't print help page: %s%n", e.getMessage());
-				e.printStackTrace(System.err);
-			}
-			return;
-		} else if (optionSet.has("init")) {
-			Path configPath = (Path) optionSet.valueOf(CLI_CONFIG);
-			Path logbackPath = (Path) optionSet.valueOf(CLI_LOGCONFIG);
+		CommandLine commandLine = cliParser.parse(args);
+		//endregion
 
-			if (!initializeCheckFiles(configPath, logbackPath)) {
-				return;
-			}
-
-			InputStream configResource = Objects.requireNonNull(Main.class.getResourceAsStream("/config-sample.yml"));
-			InputStream logbackResource = Objects.requireNonNull(Main.class.getResourceAsStream("/logback-sample.xml"));
-
-			try(OutputStream configOut = Files.newOutputStream(configPath);
-			    OutputStream logbackOut = Files.newOutputStream(logbackPath)) {
-				IOUtils.copy(configResource, configOut);
-				IOUtils.copy(logbackResource, logbackOut);
-			}
-
-			System.out.println("Initialization environment done.");
-			return;
+		//region Configuration Logback
+		Path logconfigPath;
+		if (commandLine.has(logconfigOption)) {
+			logconfigPath = Paths.get(logconfigOption.value());
+		} else {
+			logconfigPath = defaultLogbackConfigPath();
 		}
+		reconfigureLogback(logconfigPath);
+		//endregion
 
-		reconfigureLogback(optionSet);
+		//region Setup config
+		ConfigModule configModule = new ConfigModule("./config-default.conf",
+				commandLine.has(configOption) ? Paths.get(configOption.value()) : null);
+		ConfigComponent configComponent = DaggerConfigComponent.builder()
+				.configModule(configModule).build();
+		//endregion
 
+		//region Debug log config
+		Logger log = LoggerFactory.getLogger("LAUNCHER");
 		if (log.isDebugEnabled()) {
-			optionSet.asMap().forEach((optionSpec, objects) -> {
-				if (optionSpec.isForHelp()) return;
-				log.debug("OptionSet | {} = {}", optionSpec.options(), objects);
-			});
+			Config config = configComponent.getConfig();
+			log.debug("Logback config path: {}", logconfigOption.value() == null ? "(default)" : logconfigOption.value());
+			log.debug("Config path: {}", configOption.value() == null ? "(default)" : configOption.value());
+
+			config.entrySet().stream()
+					.map(entry -> String.format("[CONFIG] %s = %s", entry.getKey(), entry.getValue().render()))
+					.sorted()
+					.forEach(log::debug);
+		}
+		//endregion
+
+		ServerComponent serverComponent = DaggerServerComponent.builder()
+				.scenarioModule(new ScenarioModule(configComponent.getConfig()))
+				.worldModule(new FlatWorldModule(configComponent.getConfig()))
+				.build();
+		serverComponent.getPacketScenarios().forEach(scenario -> scenario.setup(serverComponent.getProtocolHandlersBus()));
+
+		NettyServer server = serverComponent.getNettyServer();
+
+		String host = configComponent.getConfig().getString("server.host");
+		int port = configComponent.getConfig().getInt("server.port");
+
+		log.info("Server starting: {}:{}", host, port);
+		server.start(host, port);
+	}
+
+	//TODO нужно продумать как этот метод сделать доступным для расширенных версий сервера
+	/**
+	 * Перенастраиваем logback с учетом путей.
+	 * <p>По-умолчанию, logback пытается искать свои конфиги по заранее зашитым путям.
+	 * Здесь мы изменяем эти принципы.
+	 */
+	private static void reconfigureLogback(@Nonnull Path configPath) throws IOException {
+		if (Files.notExists(configPath)) {
+			throw new FileNotFoundException(configPath.toAbsolutePath().toString());
 		}
 
-		new Main().run(optionSet);
-	}
-
-	private static OptionParser createOptionParser() {
-		OptionParser optionParser = new OptionParser();
-
-		optionParser.acceptsAll(List.of("h", "help"), "Help page").forHelp();
-		optionParser.accepts("init", "Initialize environment");
-
-		optionParser.accepts(CLI_CONFIG, "Path to configuration file")
-				.withRequiredArg()
-				.withValuesConvertedBy(new PathConverter())
-				.defaultsTo(Paths.get("config.yml"));
-
-		optionParser.accepts(CLI_LOGCONFIG, "Path to logger configuratuin file")
-				.withRequiredArg()
-				.withValuesConvertedBy(new PathConverter())
-				.defaultsTo(Paths.get("logback.xml"));
-
-		return optionParser;
-	}
-
-	private static String faviconToBase64(Path iconPath) {
-		try {
-			return "data:image/png;base64," +
-					Base64.getEncoder().encodeToString(
-							IOUtils.toByteArray(Files.newInputStream(iconPath)));
-		} catch (IOException e) {
-			log.error("Can't read icon '{}'", iconPath.toAbsolutePath(), e);
-			return "";
-		}
-	}
-
-	private static boolean initializeCheckFiles(Path... paths) {
-		for (Path path : paths) {
-			if (Files.exists(path)) {
-				System.err.printf("File '%s' already exist. Initialization environment canceled.%n",
-						path.toAbsolutePath());
-				return false;
-			}
-		}
-
-		return true;
-	}
-
-	private static void reconfigureLogback(OptionSet optionSet) throws IOException {
 		LoggerContext logbackContext = (LoggerContext) LoggerFactory.getILoggerFactory();
 		logbackContext.reset();
 		JoranConfigurator configurator = new JoranConfigurator();
 
-		Path logbackPath = (Path) optionSet.valueOf(CLI_LOGCONFIG);
-		try(InputStream in = Objects.requireNonNull(
-				Files.newInputStream(logbackPath), "File not found: " + logbackPath.toAbsolutePath())) {
-
+		try(InputStream in = Files.newInputStream(configPath)) {
 			configurator.setContext(logbackContext);
 			configurator.doConfigure(in);
 		} catch (JoranException e) {
 			throw new IOException(e);
 		}
 	}
+
+	@SneakyThrows
+	private static Path defaultLogbackConfigPath() {
+		URL url = Objects.requireNonNull(Main.class.getResource("/logback-default.xml"));
+		return Paths.get(url.toURI());
+	}
 }

server/src/main/java/mc/server/NettyServer.java

@@ -0,0 +1,55 @@
+package mc.server;
+
+import io.netty.bootstrap.ServerBootstrap;
+import io.netty.channel.ChannelInitializer;
+import io.netty.channel.nio.NioEventLoopGroup;
+import io.netty.channel.socket.SocketChannel;
+import io.netty.channel.socket.nio.NioServerSocketChannel;
+import io.netty.handler.logging.LogLevel;
+import io.netty.handler.logging.LoggingHandler;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import mc.protocol.handler.ProtocolHandlersBus;
+import mc.protocol.handler.ProtocolInboundHandler;
+import mc.protocol.handler.codec.ProtocolDecoder;
+import mc.protocol.handler.codec.ProtocolEncoder;
+import mc.protocol.handler.codec.ProtocolSplitter;
+
+import javax.annotation.Nonnull;
+
+@Slf4j
+@RequiredArgsConstructor
+public class NettyServer {
+
+	private final ProtocolHandlersBus protocolHandlersBus;
+
+	public void start(String host, int port) {
+		try {
+			createServerBootstrap().bind(host, port).sync().channel().closeFuture().sync();
+		} catch (InterruptedException e) {
+			if (log.isTraceEnabled()) {
+				log.trace("{}: {}", e.getClass().getSimpleName(), e.getMessage(), e);
+			}
+		}
+	}
+
+	private ServerBootstrap createServerBootstrap() {
+		ServerBootstrap bootstrap = new ServerBootstrap();
+
+		bootstrap.group(new NioEventLoopGroup(1), new NioEventLoopGroup())
+				.channel(NioServerSocketChannel.class)
+				.childHandler(new ChannelInitializer<SocketChannel>() {
+					@Override
+					protected void initChannel(@Nonnull SocketChannel socketChannel) {
+						socketChannel.pipeline()
+								.addLast("packet_splitter", new ProtocolSplitter())
+								.addLast("logger", new LoggingHandler(LogLevel.DEBUG))
+								.addLast("packet_decoder", new ProtocolDecoder(false))
+								.addLast("packet_encoder", new ProtocolEncoder())
+								.addLast("packet_handler", new ProtocolInboundHandler(protocolHandlersBus));
+					}
+				});
+
+		return bootstrap;
+	}
+}

server/src/main/java/mc/server/Player.java

@@ -0,0 +1,20 @@
+package mc.server;
+
+import io.netty.channel.ChannelHandlerContext;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import mc.protocol.model.Location;
+import mc.protocol.utils.GameMode;
+
+import java.util.UUID;
+
+@RequiredArgsConstructor
+@Getter
+public class Player {
+
+	private final ChannelHandlerContext ctx;
+	private final UUID uuid;
+	private final String name;
+	private final GameMode gameMode;
+	private final Location location;
+}

server/src/main/java/mc/server/PlayerManager.java

@@ -0,0 +1,27 @@
+package mc.server;
+
+import io.netty.channel.ChannelHandlerContext;
+import mc.protocol.model.Location;
+import mc.protocol.utils.GameMode;
+
+import java.util.LinkedList;
+import java.util.UUID;
+
+public class PlayerManager {
+
+	private final LinkedList<Player> players = new LinkedList<>();
+
+	public Player create(ChannelHandlerContext ctx, String name, GameMode gameMode, Location location) {
+		Player player = new Player(ctx, UUID.randomUUID(), name, gameMode, location);
+		players.add(player);
+		return player;
+	}
+
+	public void remove(Player player) {
+		players.remove(player);
+	}
+
+	public int online() {
+		return players.size();
+	}
+}

server/src/main/java/mc/server/ServetAttributes.java

@@ -0,0 +1,10 @@
+package mc.server;
+
+import io.netty.util.AttributeKey;
+import lombok.experimental.UtilityClass;
+
+@UtilityClass
+public class ServetAttributes {
+
+	public static final AttributeKey<Player> PLAYER = AttributeKey.newInstance("PLAYER");
+}

server/src/main/java/mc/server/config/Config.java

@@ -1,38 +0,0 @@
-package mc.server.config;
-
-import lombok.Getter;
-import lombok.Setter;
-import lombok.ToString;
-import lombok.experimental.Accessors;
-
-import java.nio.file.Path;
-
-@Accessors(fluent = true)
-@Getter
-@Setter
-@ToString
-public class Config {
-
-	private final Server server = new Server();
-	private final Players players = new Players();
-
-	private String motd;
-	private String disconnectReason;
-	private Path iconPath;
-
-	@Getter
-	@Setter
-	@ToString
-	public static class Server {
-		private String host;
-		private int port;
-	}
-
-	@Getter
-	@Setter
-	@ToString
-	public static class Players {
-		private int maxOnlile;
-		private int onlile;
-	}
-}

server/src/main/java/mc/server/di/ConfigComponent.java

@@ -0,0 +1,13 @@
+package mc.server.di;
+
+import com.typesafe.config.Config;
+import dagger.Component;
+
+import javax.inject.Singleton;
+
+@Component(modules = ConfigModule.class)
+@Singleton
+public interface ConfigComponent {
+
+	Config getConfig();
+}

server/src/main/java/mc/server/di/ConfigModule.java

@@ -1,67 +1,36 @@
 package mc.server.di;
 
+import com.typesafe.config.Config;
+import com.typesafe.config.ConfigFactory;
 import dagger.Module;
 import dagger.Provides;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import mc.server.config.Config;
-import org.yaml.snakeyaml.Yaml;
 
-import java.io.IOException;
-import java.nio.file.Files;
+import javax.inject.Singleton;
 import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.util.Map;
 
-@Slf4j
 @Module
 @RequiredArgsConstructor
+@Slf4j
 public class ConfigModule {
 
+	private final String defaultResource;
 	private final Path configPath;
 
 	@Provides
+	@Singleton
 	Config provideConfig() {
-		Config config = new Config();
-		Map<String, Object> map = new Yaml().load(readConfigAsString());
+		Config defaultConfig = ConfigFactory.parseResources(defaultResource);
+		Config config;
 
-		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().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")));
+		if (configPath != null) {
+			Config userConfig = ConfigFactory.parseFile(configPath.toFile());
+			config = userConfig.withFallback(defaultConfig).resolve();
+		} else {
+			config = defaultConfig.resolve();
 		}
 
-		map.clear();
 		return config;
 	}
-
-	private String readConfigAsString() {
-		try {
-			return Files.readString(configPath);
-		} catch (IOException e) {
-			log.error("Can't load config from '{}'", configPath.toAbsolutePath(), e);
-			return "";
-		}
-	}
-
-	@SuppressWarnings("unchecked")
-	private static <T> T fromYamlPath(String mapPath, Map<String, Object> map, T defaultValue) {
-		String[] keys = mapPath.split("/", 2);
-
-		if (map.containsKey(keys[0])) {
-			Object object = map.get(keys[0]);
-			if (keys.length > 1) {
-				return fromYamlPath(keys[1], (Map<String, Object>) object, defaultValue);
-			} else {
-				return (T) object;
-			}
-		} else {
-			return defaultValue;
-		}
-	}
 }

server/src/main/java/mc/server/di/FlatWorldModule.java

@@ -0,0 +1,61 @@
+package mc.server.di;
+
+import com.typesafe.config.Config;
+import mc.protocol.model.Location;
+import mc.protocol.utils.SerializeUtil;
+import mc.protocol.world.World;
+import mc.server.world.FlatWorld;
+import mc.utils.array.BitArray;
+import mc.utils.array.BitLongArray;
+
+public class FlatWorldModule extends WorldModule {
+
+	public FlatWorldModule(Config config) {
+		super(config);
+	}
+
+	@Override
+	World provideWorld() {
+		String[] rawConfigParts = this.config.getString("world.flat-generator").split(";");
+		byte biome = Byte.parseByte(rawConfigParts[0]);
+
+		return new FlatWorld(spawn(), flatConfig(rawConfigParts), biome);
+	}
+
+	private Location spawn() {
+		Location spawn = new Location();
+		spawn.set(
+				config.getDouble("world.spawn.x"),
+				config.getDouble("world.spawn.y"),
+				config.getDouble("world.spawn.z")
+		);
+
+		return spawn;
+	}
+
+	private BitArray flatConfig(String[] rawConfigParts) {
+		BitArray flatConfig = new BitLongArray(13, 256);
+		int k = 0;
+		for (int i = 1; i < rawConfigParts.length; i++) {
+			String[] part1 = rawConfigParts[i].split(",");
+			String[] part2 = part1[1].split(":");
+
+			int count = Integer.parseInt(part1[0]);
+			int blockId = Integer.parseInt(part2[0]);
+			int blockMeta = Integer.parseInt(part2[1]);
+
+			k += count;
+			for (int j = 0; j < count; j++) {
+				flatConfig.put(SerializeUtil.blockIdMetaSerialize(blockId, blockMeta));
+			}
+		}
+
+		if (k < 256) {
+			for (int i = 0; i < (256 - k); i++) {
+				flatConfig.put(0);
+			}
+		}
+
+		return flatConfig;
+	}
+}

server/src/main/java/mc/server/di/PlayerManagerModule.java

@@ -0,0 +1,17 @@
+package mc.server.di;
+
+import dagger.Module;
+import dagger.Provides;
+import mc.server.PlayerManager;
+
+import javax.inject.Singleton;
+
+@Module
+public class PlayerManagerModule {
+
+	@Provides
+	@Singleton
+	PlayerManager providePlayerManager() {
+		return new PlayerManager();
+	}
+}