29 files changed, 2099 insertions, 43 deletions

diff --git a/src/Nbt.hpp b/src/Nbt.hpp
new file mode 100644
index 0000000..03f5af0
--- /dev/null
+++ b/src/Nbt.hpp
@@ -0,0 +1,516 @@
+#pragma once
+
+#include <cstddef>
+#include <vector>
+#include <fstream>
+#include <zlib.h>
+
+#include <Utility.hpp>
+
+namespace nbt {
+	enum TagType {
+		End,        //nullptr
+		Byte,       //int8_t
+		Short,      //int16_t
+		Int,        //int32_t
+		Long,       //int64_t
+		Float,      //float
+		Double,     //double
+		ByteArray,  //std::vector<signed char>
+		String,     //std::string
+		List,       //std::vector<NbtTag>
+		Compound,   //std::vector<NbtTag>
+		IntArray,   //std::vector<int32_t>
+		Unknown,    //dummy value
+	};
+
+	class NbtTag;
+
+	typedef std::vector<NbtTag> compound_t;
+
+	typedef std::string string_t;
+
+	typedef std::vector<signed char> byteArray_t;
+
+	typedef std::vector<int> intArray_t;
+
+	class NbtTag {
+		TagType type = Unknown;
+		string_t name = "";
+		unsigned char *data = nullptr;
+	public:
+		NbtTag(TagType type, string_t name) : type(type), name(name) {
+			switch (type) {
+				case End:
+					data = nullptr;
+					break;
+				case Compound:
+					data = (unsigned char *) new compound_t;
+					break;
+				case String:
+					data = (unsigned char *) new string_t;
+					break;
+				case Int:
+					data = (unsigned char *) new int32_t;
+					break;
+				case Long:
+					data = (unsigned char *) new int64_t;
+					break;
+				case Byte:
+					data = (unsigned char *) new int8_t;
+					break;
+				case Short:
+					data = (unsigned char *) new int16_t;
+					break;
+				case Float:
+					data = (unsigned char *) new float;
+					break;
+				case Double:
+					data = (unsigned char *) new double;
+					break;
+				case ByteArray:
+					data = (unsigned char *) new byteArray_t;
+					break;
+				case List:
+					data = (unsigned char *) new compound_t;
+					break;
+				case IntArray:
+					data = (unsigned char *) new intArray_t;
+			}
+		}
+
+		NbtTag(const NbtTag &other) : type(other.type), name(other.name) {
+			switch (type) {
+				case Byte:
+					data = (unsigned char *) new int8_t;
+					*((int8_t *) data) = *((int8_t *) other.data);
+					break;
+				case Short:
+					data = (unsigned char *) new int16_t;
+					*((int16_t *) data) = *((int16_t *) other.data);
+					break;
+				case Int:
+					data = (unsigned char *) new int32_t;
+					*((int32_t *) data) = *((int32_t *) other.data);
+					break;
+				case Long:
+					data = (unsigned char *) new int64_t;
+					*((int64_t *) data) = *((int64_t *) other.data);
+					break;
+				case Float:
+					data = (unsigned char *) new float;
+					*((float *) data) = *((float *) other.data);
+					break;
+				case Double:
+					data = (unsigned char *) new double;
+					*((double *) data) = *((double *) other.data);
+					break;
+				case ByteArray:
+					data = (unsigned char *) new byteArray_t;
+					*((std::vector<signed char> *) data) = *((std::vector<signed char> *) other.data);
+					break;
+				case String:
+					data = (unsigned char *) new string_t;
+					*((std::string *) data) = *((std::string *) other.data);
+					break;
+				case List:
+					data = (unsigned char *) new compound_t;
+					*((std::vector<NbtTag> *) data) = *((std::vector<NbtTag> *) other.data);
+					break;
+				case Compound:
+					data = (unsigned char *) new compound_t;
+					*((std::vector<NbtTag> *) data) = *((std::vector<NbtTag> *) other.data);
+					break;
+				case IntArray:
+					data = (unsigned char *) new intArray_t;
+					*((std::vector<int> *) data) = *((std::vector<int> *) other.data);
+					break;
+			}
+		}
+
+		~NbtTag() {
+			switch (type) {
+				case Byte:
+					delete ((int8_t *) data);
+					break;
+				case Short:
+					delete ((int16_t *) data);
+					break;
+				case Int:
+					delete ((int32_t *) data);
+					break;
+				case Long:
+					delete ((int64_t *) data);
+					break;
+				case Float:
+					delete ((float *) data);
+					break;
+				case Double:
+					delete ((double *) data);
+					break;
+				case ByteArray:
+					delete ((std::vector<signed char> *) data);
+					break;
+				case String:
+					delete ((std::string *) data);
+					break;
+				case List:
+					delete ((std::vector<NbtTag> *) data);
+					break;
+				case Compound:
+					delete ((std::vector<NbtTag> *) data);
+					break;
+				case IntArray:
+					delete ((std::vector<int> *) data);
+					break;
+			}
+		};
+
+		void swap(NbtTag &other) {
+			std::swap(other.data, data);
+			std::swap(other.name, name);
+			std::swap(other.type, type);
+		}
+
+		NbtTag &operator=(NbtTag other) {
+			other.swap(*this);
+			return *this;
+		}
+
+		TagType GetType() const {
+			return type;
+		}
+
+		string_t GetName() const {
+			return name;
+		}
+
+
+		string_t &GetString() {
+			string_t &val = *reinterpret_cast<std::string *>(data);
+			return val;
+		}
+
+		compound_t &GetCompound() {
+			std::vector<NbtTag> &val = *reinterpret_cast<std::vector<NbtTag> *>(data);
+			return val;
+		}
+
+		compound_t &GetList() {
+			std::vector<NbtTag> &val = *reinterpret_cast<std::vector<NbtTag> *>(data);
+			return val;
+		}
+
+		int64_t &GetLong() {
+			int64_t &val = *reinterpret_cast<int64_t *>(data);
+			return val;
+		}
+
+		float &GetFloat() {
+			float &val = *reinterpret_cast<float *>(data);
+			return val;
+		}
+
+		double &GetDouble() {
+			double &val = *reinterpret_cast<double *>(data);
+			return val;
+		}
+
+		byteArray_t &GetByteArray() {
+			auto &val = *reinterpret_cast<byteArray_t *>(data);
+			return val;
+		}
+
+		intArray_t &GetIntArray() {
+			auto &val = *reinterpret_cast<intArray_t *>(data);
+			return val;
+		}
+
+		int16_t &GetShort() {
+			auto &val = *reinterpret_cast<int16_t *>(data);
+			return val;
+		}
+
+		int32_t &GetInt() {
+			auto &val = *reinterpret_cast<int32_t *>(data);
+			return val;
+		}
+
+		int8_t &GetByte() {
+			auto &val = *reinterpret_cast<int8_t *>(data);
+			return val;
+		}
+	};
+
+	NbtTag ParseTag(unsigned char *data, size_t &size, TagType listItemType = Unknown) {
+		size = 0;
+		TagType type;
+		if (listItemType == Unknown) {
+			type = (TagType) *data;
+			data += 1;
+			size += 1;
+		} else
+			type = listItemType;
+		string_t name;
+		if (listItemType == Unknown && type != End) {
+			short nameLen = *((short *) data);
+			data += 2;
+			size += 2;
+			endswap(&nameLen);
+			name = std::string((char *) data, nameLen);
+			data += nameLen;
+			size += nameLen;
+		}
+		NbtTag tag(type, name);
+		switch (type) {
+			case Compound: {
+				do {
+					size_t s;
+					tag.GetCompound().push_back(ParseTag(data, s));
+					data += s;
+					size += s;
+				} while (tag.GetCompound().back().GetType() != End);
+				tag.GetCompound().pop_back();
+				return tag;
+			}
+			case String: {
+				short len = *((short *) data);
+				data += 2;
+				size += 2;
+				endswap(&len);
+				string_t str((char *) data, len);
+				data += len;
+				size += len;
+				tag.GetString() = str;
+				return tag;
+			}
+			case End:
+				return tag;
+			case Long:
+				tag.GetLong() = *((int64_t *) data);
+				endswap(&tag.GetLong());
+				data += 8;
+				size += 8;
+				return tag;
+			case Short:
+				tag.GetShort() = *((int16_t *) data);
+				endswap(&tag.GetShort());
+				data += 2;
+				size += 2;
+				return tag;
+			case Float:
+				tag.GetFloat() = *((float *) data);
+				endswap(&tag.GetFloat());
+				data += 4;
+				size += 4;
+				return tag;
+			case Double:
+				tag.GetDouble() = *((double *) data);
+				endswap(&tag.GetDouble());
+				data += 8;
+				size += 8;
+				return tag;
+			case Byte:
+				tag.GetByte() = *((int8_t *) data);
+				endswap(&tag.GetByte());
+				data += 1;
+				size += 1;
+				return tag;
+			case Int:
+				tag.GetInt() = *((int32_t *) data);
+				endswap(&tag.GetInt());
+				data += 4;
+				size += 4;
+				return tag;
+			case List: {
+				TagType listType = *((TagType *) data);
+				data += 1;
+				size += 1;
+				int32_t listLength = *((int32_t *) data);
+				endswap(&listLength);
+				data += 4;
+				size += 4;
+				for (int i = 0; i < listLength; i++) {
+					size_t s = 0;
+					std::vector<NbtTag> &vec = tag.GetCompound();
+					vec.push_back(ParseTag(data, s, listType));
+					data += s;
+					size += s;
+				}
+				return tag;
+			}
+			case ByteArray: {
+				int32_t arrLength = *((int32_t *) data);
+				endswap(&arrLength);
+				data += 4;
+				size += 4;
+				for (int i = 0; i < arrLength; i++) {
+					signed char val = (signed char) data[i];
+					std::vector<signed char> &vec = tag.GetByteArray();
+					vec.push_back(val);
+				}
+				data += arrLength;
+				size += arrLength;
+				return tag;
+			}
+			default:
+				throw 13;
+		}
+	}
+
+	NbtTag ParseTag(unsigned char *data, size_t *optionalSize = nullptr) {
+		size_t s = 0;
+		size_t &size = (optionalSize ? *optionalSize : s);
+		return ParseTag(data, size);
+	}
+
+	std::vector<unsigned char> Decompress(unsigned char *data, size_t dataLen) {
+		const size_t decompBuffSize = 1024 * 16;
+		unsigned char *decompBuff = new unsigned char[decompBuffSize];
+		std::vector<unsigned char> uncompressed;
+		for (int i = 0; i < decompBuffSize; i++)
+			decompBuff[i] = 0;
+
+
+		z_stream stream;
+		stream.zalloc = Z_NULL;
+		stream.zfree = Z_NULL;
+		stream.opaque = Z_NULL;
+		stream.next_in = data;
+		stream.avail_in = dataLen;
+		stream.next_out = decompBuff;
+		stream.avail_out = decompBuffSize;
+
+		if (inflateInit2(&stream, 15 + 32) != Z_OK) {
+			delete[] decompBuff;
+			throw 171;
+		}
+
+		int res;
+		do {
+			stream.avail_out = decompBuffSize;
+
+			switch ((res = inflate(&stream, Z_NO_FLUSH))) {
+				case Z_MEM_ERROR:
+					throw 172;
+				case Z_DATA_ERROR:
+					throw 173;
+				case Z_NEED_DICT:
+					throw 174;
+			}
+
+			uncompressed.resize(uncompressed.size() + decompBuffSize);
+			std::copy(decompBuff, decompBuff + decompBuffSize, uncompressed.end() - decompBuffSize);
+		} while (stream.avail_out == 0);
+		if (res != Z_STREAM_END)
+			throw 175;
+		if (inflateEnd(&stream) != Z_OK)
+			throw 176;
+		delete[] decompBuff;
+		return uncompressed;
+	}
+
+	NbtTag ParseCompressed(unsigned char *data, size_t dataLen) {
+		auto uncompressed = Decompress(data, dataLen);
+		NbtTag root = ParseTag(uncompressed.data());
+		return root;
+	}
+
+	NbtTag Parse(unsigned char *data, size_t dataLen) {
+		bool isCompressed = *data != 10;
+		if (isCompressed)
+			return ParseCompressed(data, dataLen);
+		else
+			return ParseTag(data);
+	}
+
+	void PrintTree(NbtTag &tree, int deepness = 0, std::ostream &ostream = std::cout) {
+		ostream << std::string(deepness, '\t') << "Tag ";
+		switch (tree.GetType()) {
+			case Byte:
+				ostream << "byte";
+				break;
+			case Short:
+				ostream << "short";
+				break;
+			case Int:
+				ostream << "int";
+				break;
+			case Long:
+				ostream << "long";
+				break;
+			case Float:
+				ostream << "float";
+				break;
+			case Double:
+				ostream << "double";
+				break;
+			case ByteArray:
+				ostream << "byte array";
+				break;
+			case String:
+				ostream << "string";
+				break;
+			case List:
+				ostream << "list";
+				break;
+			case Compound:
+				ostream << "compound";
+				break;
+			case IntArray:
+				ostream << "int array";
+				break;
+			case End:
+				ostream << "end";
+				break;
+		}
+		if (tree.GetName().length() > 0)
+			ostream << " (" << tree.GetName() << ")";
+		ostream << ": ";
+
+		if (tree.GetType() == Compound || tree.GetType() == List) {
+			std::vector<NbtTag> &vec = (tree.GetType() == Compound ? tree.GetCompound() : tree.GetList());
+			ostream << vec.size() << " entries {" << std::endl;
+			for (auto it = vec.begin(); it != vec.end(); ++it) {
+				PrintTree(*it, deepness + 1, std::cout);
+			}
+			ostream << std::string(deepness, '\t') << "}" << std::endl;
+			return;
+		} else {
+			switch (tree.GetType()) {
+				case Int:
+					ostream << tree.GetInt();
+					break;
+				case String:
+					ostream << "\"" << tree.GetString() << "\"";
+					break;
+				case Double:
+					ostream << tree.GetDouble();
+					break;
+				case Float:
+					ostream << tree.GetFloat();
+					break;
+				case Short:
+					ostream << tree.GetShort();
+					break;
+				case Byte:
+					ostream << (int) tree.GetByte();
+					break;
+				case Long:
+					ostream << tree.GetLong();
+					break;
+				case ByteArray:
+					ostream << "[" << tree.GetByteArray().size() << " bytes]: ";
+					for (int i = 0; i < (tree.GetByteArray().size() > 10 ? 10 : tree.GetByteArray().size()); i++) {
+						ostream << std::hex << "0x" << (tree.GetByteArray()[i] > 15 ? "" : "0")
+						        << (int) tree.GetByteArray()[i]
+						        << std::dec << " ";
+					}
+					break;
+				case IntArray:
+					break;
+			}
+			ostream << std::endl;
+		}
+	}
+}
\ No newline at end of file
diff --git a/src/Utility.hpp b/src/Utility.hpp
new file mode 100644
index 0000000..11b4ff7
--- /dev/null
+++ b/src/Utility.hpp
@@ -0,0 +1,59 @@
+#pragma once
+
+#include <algorithm>
+
+#include <GL/glew.h>
+
+template<class T>
+void endswap(T *objp) {
+	unsigned char *memp = reinterpret_cast<unsigned char *>(objp);
+	std::reverse(memp, memp + sizeof(T));
+}
+
+template<class T>
+void endswap(T &obj) {
+	unsigned char *raw = reinterpret_cast<unsigned char *>(&obj);
+	std::reverse(raw, raw + sizeof(T));
+}
+
+inline void endswap(unsigned char *arr, size_t arrLen) {
+	std::reverse(arr, arr + arrLen);
+}
+
+inline GLenum glCheckError_(const char *file, int line) {
+	GLenum errorCode;
+	while ((errorCode = glGetError()) != GL_NO_ERROR) {
+		std::string error;
+		switch (errorCode) {
+			case GL_INVALID_ENUM:
+				error = "INVALID_ENUM";
+				break;
+			case GL_INVALID_VALUE:
+				error = "INVALID_VALUE";
+				break;
+			case GL_INVALID_OPERATION:
+				error = "INVALID_OPERATION";
+				break;
+			case GL_STACK_OVERFLOW:
+				error = "STACK_OVERFLOW";
+				break;
+			case GL_STACK_UNDERFLOW:
+				error = "STACK_UNDERFLOW";
+				break;
+			case GL_OUT_OF_MEMORY:
+				error = "OUT_OF_MEMORY";
+				break;
+			case GL_INVALID_FRAMEBUFFER_OPERATION:
+				error = "INVALID_FRAMEBUFFER_OPERATION";
+				break;
+		}
+		static int t = 0;
+		t++;
+		if (t>10)
+			LOG(FATAL);
+		LOG(ERROR) << "OpenGL error: " << error << " at " << file << ":" << line;
+	}
+	return errorCode;
+}
+
+#define glCheckError() glCheckError_(__FILE__, __LINE__)
\ No newline at end of file
diff --git a/src/Vector.hpp b/src/Vector.hpp
new file mode 100644
index 0000000..a2d5c6a
--- /dev/null
+++ b/src/Vector.hpp
@@ -0,0 +1,116 @@
+#pragma once
+
+#include <ostream>
+#include <cmath>
+#include <tuple>
+
+#include <glm/vec3.hpp>
+
+template<class T>
+class Vector3 {
+	T x, y, z;
+public:
+	Vector3(T X = 0, T Y = 0, T Z = 0) : x(X), y(Y), z(Z) {}
+
+	Vector3(const Vector3 &rhs) : x(rhs.x), y(rhs.y), z(rhs.z) {}
+
+	~Vector3() = default;
+
+	void SetX(T X) { x = X; }
+
+	void SetY(T Y) { y = Y; }
+
+	void SetZ(T Z) { z = Z; }
+
+	T GetX() const { return x; }
+
+	T GetY() const { return y; }
+
+	T GetZ() const { return z; }
+
+	double GetMagnitude() const { return std::sqrt(std::pow(x, 2) + std::pow(y, 2) + std::pow(z, 2)); }
+
+	operator glm::vec3() const {
+		return glm::vec3(x, y, z);
+	}
+
+	void swap(Vector3 &rhs) {
+		std::swap(x, rhs.x);
+		std::swap(y, rhs.y);
+		std::swap(z, rhs.z);
+	}
+
+	Vector3 &operator=(Vector3 rhs) {
+		rhs.swap(*this);
+		return *this;
+	}
+
+	Vector3 operator*(T rhs) const {
+		return Vector3<T>(
+				x * rhs,
+				y * rhs,
+				z * rhs
+		);
+	}
+
+	Vector3 operator/(T rhs) const {
+		return Vector3<T>(
+				x / rhs,
+				y / rhs,
+				z / rhs
+		);
+	}
+
+	Vector3 operator+(const Vector3 &rhs) const {
+		return Vector3<T>(
+				x + rhs.x,
+				y + rhs.y,
+				z + rhs.z
+		);
+	}
+
+	Vector3 operator-(const Vector3 &rhs) const {
+		return Vector3<T>(
+				x - rhs.x,
+				y - rhs.y,
+				z - rhs.z
+		);
+	}
+
+	Vector3 operator*(const Vector3 &rhs) const {
+		return Vector3<T>(
+				x * rhs.x,
+				y * rhs.y,
+				z * rhs.z
+		);
+	}
+
+	Vector3 operator/(const Vector3 &rhs) const {
+		return Vector3<T>(
+				x / rhs.x,
+				y / rhs.y,
+				z / rhs.z
+		);
+	}
+
+	bool operator==(const Vector3 &rhs) const {
+		return (x == rhs.x && y == rhs.y && z == rhs.z);
+	}
+
+	bool operator!=(const Vector3 &rhs) const {
+		return !(*this == rhs);
+	}
+
+	bool operator<(const Vector3 &rhs) const {
+		return std::tie(x, y, z) < std::tie(rhs.x, rhs.y, rhs.z);
+	}
+
+
+	friend std::ostream &operator<<(std::ostream &os, const Vector3 &vector3) {
+		os << vector3.x << ", " << vector3.y << ", " << vector3.z;
+		return os;
+	}
+};
+
+typedef Vector3<double> VectorF;
+typedef Vector3<signed long long> Vector;
\ No newline at end of file
diff --git a/src/core/AssetManager.cpp b/src/core/AssetManager.cpp
index d263c4a..14ea677 100644
--- a/src/core/AssetManager.cpp
+++ b/src/core/AssetManager.cpp
@@ -1,4 +1,4 @@
-#include <AssetManager.hpp>
+#include <core/AssetManager.hpp>
 
 namespace fs = std::experimental::filesystem;
 
diff --git a/src/core/AssetManager.hpp b/src/core/AssetManager.hpp
new file mode 100644
index 0000000..26c7eca
--- /dev/null
+++ b/src/core/AssetManager.hpp
@@ -0,0 +1,75 @@
+#pragma once
+
+#include <experimental/filesystem>
+#include <map>
+
+#include <GL/glew.h>
+#include <glm/vec4.hpp>
+#include <nlohmann/json.hpp>
+
+#include <world/Block.hpp>
+#include <graphics/Texture.hpp>
+
+struct TextureCoordinates {
+	TextureCoordinates(float x = -1, float y = -1, float w = -1, float h = -1) : x(x), y(y), w(w), h(h) {}
+
+	bool operator==(const TextureCoordinates &rhs) const {
+		return x == rhs.x &&
+		       y == rhs.y &&
+		       w == rhs.w &&
+		       h == rhs.h;
+	}
+
+	explicit operator bool() const {
+		return !(*this == TextureCoordinates(-1, -1, -1, -1));
+	}
+
+	float x, y, w, h;
+};
+
+struct BlockTextureId {
+	//Block sides: 0 - bottom, 1 - top, 2 - north, 3 - south, 4 - west, 5 - east 6 - every side
+	BlockTextureId(int id = 0, int state = 0, int side = 6) : id(id), state(state), side(side) {}
+
+	int id:9;
+	int state:4;
+	int side:3;
+
+
+	bool operator<(const BlockTextureId &rhs) const {
+		if (id < rhs.id)
+			return true;
+		if (rhs.id < id)
+			return false;
+		if (state < rhs.state)
+			return true;
+		if (rhs.state < state)
+			return false;
+		return side < rhs.side;
+	}
+};
+
+class AssetManager {
+	Texture *textureAtlas;
+	std::map<std::string, Block> assetIds;
+	std::map<std::string, TextureCoordinates> assetTextures;
+	std::map<BlockTextureId,glm::vec4> textureAtlasIndexes;
+public:
+	AssetManager();
+
+	~AssetManager();
+
+	void LoadTextureResources();
+
+	TextureCoordinates GetTextureByAssetName(std::string AssetName);
+
+	std::string GetTextureAssetNameByBlockId(BlockTextureId block);
+
+	GLuint GetTextureAtlas();
+
+	const std::map<BlockTextureId,glm::vec4> &GetTextureAtlasIndexes();
+
+	void LoadIds();
+
+	TextureCoordinates GetTextureByBlock(BlockTextureId block);
+};
diff --git a/src/core/Core.cpp b/src/core/Core.cpp
index 44e2648..e98d204 100644
--- a/src/core/Core.cpp
+++ b/src/core/Core.cpp
@@ -44,7 +44,7 @@ void Core::Exec() {
 			UpdateChunksToRender();
 		}
 
-		/*std::ostringstream toWindow;
+		std::ostringstream toWindow;
 		auto camPos = gameState->Position();
 		auto velPos = glm::vec3(gameState->g_PlayerVelocityX, gameState->g_PlayerVelocityY,
 		                        gameState->g_PlayerVelocityZ);
@@ -57,7 +57,7 @@ void Core::Exec() {
 		toWindow << " (" << deltaTime * 1000 << "ms); ";
 		toWindow << "Tickrate: " << tickRate << " (" << (1.0 / tickRate * 1000) << "ms); ";
         toWindow << "Sections: " << sectionRate << " (" << (1.0 / sectionRate * 1000) << "ms); ";
-		window->setTitle(toWindow.str());*/
+		window->setTitle(toWindow.str());
 
 		HandleEvents();
 		if (isMouseCaptured) HandleMouseCapture();
diff --git a/src/core/Core.hpp b/src/core/Core.hpp
new file mode 100644
index 0000000..fdbb377
--- /dev/null
+++ b/src/core/Core.hpp
@@ -0,0 +1,95 @@
+#pragma once
+
+#include <iomanip>
+#include <tuple>
+
+#include <easylogging++.h>
+#include <SFML/Window.hpp>
+#include <GL/glew.h>
+#include <glm/gtc/type_ptr.hpp>
+
+#include <world/GameState.hpp>
+#include <core/AssetManager.hpp>
+#include <graphics/Shader.hpp>
+#include <graphics/Gui.hpp>
+#include <graphics/RenderSection.hpp>
+#include <network/NetworkClient.hpp>
+
+struct MyMutex {
+    std::mutex mtx;
+    std::string str;
+    MyMutex(std::string name);
+    void lock();
+    void unlock();
+};
+
+class Core {
+	GameState *gameState;
+	NetworkClient *client;
+	sf::Window *window;
+	AssetManager *assetManager;
+	bool isMouseCaptured = false;
+	bool isRunning = true;
+	enum {
+		MainMenu,
+		Loading,
+		Playing,
+		PauseMenu,
+	} currentState = Playing;
+	float mouseXDelta, mouseYDelta;
+	float deltaTime;
+	float absTime;
+
+	void RenderWorld();
+
+	void HandleMouseCapture();
+
+	void HandleEvents();
+
+	void InitSfml(unsigned int WinWidth, unsigned int WinHeight, std::string WinTitle);
+
+	void InitGlew();
+
+	void SetMouseCapture(bool IsCaptured);
+
+	void PrepareToRendering();
+
+	void RenderFrame();
+
+	unsigned int width();
+
+	unsigned int height();
+
+	void UpdateChunksToRender();
+
+	void UpdateGameState();
+
+	void UpdateSections();
+
+	std::thread gameStateLoopThread;
+	std::thread sectionUpdateLoopThread;
+
+	Shader *shader;
+	//Cube verticies, Cube VAO, Cube UVs, TextureIndexes UboTextureIndexes, TextureData UboTextureIndexes, TextureData2 UboTextureIndexes, Blocks VBO, Models VBO, Line VAO, Lines VBO
+	bool isRendersShouldBeCreated=false;
+	std::condition_variable waitRendersCreated;
+	std::vector<Vector> renders;
+	std::mutex toRenderMutex;
+	std::vector<Vector> toRender;
+	std::map<Vector, RenderSection> availableChunks;
+	std::mutex availableChunksMutex;
+
+	int ChunkDistance = 3;
+
+	RenderState renderState;
+
+	double tickRate = 0;
+    double sectionRate = 0;
+
+public:
+	Core();
+
+	~Core();
+
+	void Exec();
+};
diff --git a/src/core/Event.cpp b/src/core/Event.cpp
new file mode 100644
index 0000000..10b2eaa
--- /dev/null
+++ b/src/core/Event.cpp
@@ -0,0 +1,76 @@
+#include <core/Event.hpp>
+#include <easylogging++.h>
+
+std::queue <Event> EventAgregator::eventsToHandle;
+std::mutex EventAgregator::queueMutex;
+bool EventAgregator::isStarted = false;
+std::vector<EventListener*> EventAgregator::listeners;
+std::mutex EventAgregator::listenersMutex;
+
+void EventAgregator::EventHandlingLoop() {
+    while (true) {
+        queueMutex.lock();
+        if (!eventsToHandle.empty()) {
+            auto queue = eventsToHandle;
+            while (!eventsToHandle.empty())
+                eventsToHandle.pop();
+            queueMutex.unlock();
+
+            while (!queue.empty()) {
+                auto event = queue.front();
+                listenersMutex.lock();
+                for (auto& listener : listeners) {
+                    LOG(INFO)<<"Listener notified about event";
+                    listener->PushEvent(event);
+                }
+                listenersMutex.unlock();
+                queue.pop();
+            }
+
+            queueMutex.lock();
+        }
+        queueMutex.unlock();
+    }
+}
+
+void EventAgregator::RegisterListener(EventListener &listener) {
+    listenersMutex.lock();
+    LOG(INFO)<<"Registered handler "<<&listener;
+    listeners.push_back(&listener);
+    listenersMutex.unlock();
+}
+
+void EventAgregator::UnregisterListener(EventListener &listener) {
+    listenersMutex.lock();
+    LOG(INFO)<<"Unregistered handler "<<&listener;
+    listeners.erase(std::find(listeners.begin(), listeners.end(), &listener));
+    listenersMutex.unlock();
+}
+
+
+
+EventListener::EventListener() {
+    EventAgregator::RegisterListener(*this);
+}
+
+EventListener::~EventListener() {
+    EventAgregator::UnregisterListener(*this);
+}
+
+void EventListener::PushEvent(Event event) {
+    eventsMutex.lock();
+    LOG(INFO)<<"Pushed event to queue";
+    events.push(event);
+    eventsMutex.unlock();
+}
+
+/*void EventListener::RegisterHandler(EventType type, std::function<void(void*)> handler) {
+    handlers[type] = handler;
+}*/
+
+bool EventListener::IsEventsQueueIsNotEmpty() {
+    eventsMutex.lock();
+    bool value = !events.empty();
+    eventsMutex.unlock();
+    return value;
+}
\ No newline at end of file
diff --git a/src/core/Event.hpp b/src/core/Event.hpp
new file mode 100644
index 0000000..cfa990a
--- /dev/null
+++ b/src/core/Event.hpp
@@ -0,0 +1,96 @@
+#pragma once
+
+#include <queue>
+#include <map>
+#include <thread>
+#include <mutex>
+#include <condition_variable>
+#include <chrono>
+#include <variant>
+#include <functional>
+
+#include <Vector.hpp>
+
+enum class EventType {
+	Echo,
+	ChunkChanged,
+};
+
+struct EchoData {
+	std::chrono::time_point<std::chrono::high_resolution_clock> time;
+};
+
+struct ChunkChangedData {
+	Vector chunkPosition;
+};
+
+using EventData = std::variant<EchoData, ChunkChangedData>;
+
+struct Event {
+	EventType type;
+	EventData data;
+};
+
+class EventListener {
+	friend class EventAgregator;
+
+	using HandlerFunc = std::function<void(EventData)>;
+
+	std::map<EventType, HandlerFunc> handlers; //TODO: There must be more elegant solution than std::variant of all data
+
+	std::mutex eventsMutex;
+
+	std::queue<Event> events;
+
+	void PushEvent(Event event);
+
+public:
+	EventListener();
+	~EventListener();
+	bool IsEventsQueueIsNotEmpty();
+
+	void RegisterHandler(EventType type, HandlerFunc handler) {
+		handlers[type] = handler;
+	}
+
+	void HandleEvent() {
+		eventsMutex.lock();
+		if (events.empty()) {
+			eventsMutex.unlock();
+			return;
+		}
+		Event event = events.front();
+		events.pop();
+		eventsMutex.unlock();
+		auto function = handlers[event.type];
+		function(event.data);
+	}
+};
+
+class EventAgregator {
+	friend EventListener;
+
+	EventAgregator() = default;
+	static std::queue<Event> eventsToHandle;
+	static std::mutex queueMutex;
+	static bool isStarted;
+	static std::vector<EventListener *> listeners;
+	static std::mutex listenersMutex;
+
+	static void EventHandlingLoop();
+
+	static void RegisterListener(EventListener &listener);
+	static void UnregisterListener(EventListener &listener);
+
+public:
+	static void PushEvent(EventType type, EventData data) {
+		if (!isStarted) {
+			isStarted = true;
+			std::thread(&EventAgregator::EventHandlingLoop).detach();
+		}
+		Event event;
+		event.type = type;
+		event.data = data;
+		eventsToHandle.push(event);
+	}
+};
\ No newline at end of file
diff --git a/src/graphics/Gui.hpp b/src/graphics/Gui.hpp
new file mode 100644
index 0000000..e22a0a7
--- /dev/null
+++ b/src/graphics/Gui.hpp
@@ -0,0 +1,8 @@
+#pragma once
+
+class Gui {
+
+public:
+    int WHY=0;
+    
+};
diff --git a/src/graphics/RenderSection.cpp b/src/graphics/RenderSection.cpp
index 90d4329..ae072d6 100644
--- a/src/graphics/RenderSection.cpp
+++ b/src/graphics/RenderSection.cpp
@@ -138,7 +138,7 @@ RenderSection::~RenderSection() {
 	refCounterVao[Vao]--;
 	if (refCounterVbo[VboTextures] <= 0)
 		glDeleteBuffers(1, &VboTextures);
-	
+
 	if (refCounterVbo[VboModels] <= 0)
 		glDeleteBuffers(1, &VboTextures);
 	if (refCounterVbo[VboColors] <= 0)
@@ -297,13 +297,11 @@ void RenderSection::UpdateState(const std::map<BlockTextureId, glm::vec4> &textu
 		}
 	}
 	numOfFaces = textures.size();
-    hash = section.GetHash();
+	hash = section.GetHash();
 }
 
 void RenderSection::Render(RenderState &state) {
-    if (!isEnabled) {
-	    return;
-    }
+	if (!isEnabled) return;
 	if (!models.empty()) {
 		glBindBuffer(GL_ARRAY_BUFFER, VboTextures);
 		glBufferData(GL_ARRAY_BUFFER, textures.size() * sizeof(glm::vec4), textures.data(), GL_DYNAMIC_DRAW);
@@ -339,7 +337,7 @@ RenderSection::RenderSection(const RenderSection &other) {
 	this->models = other.models;
 	this->textures = other.textures;
 	this->colors = other.colors;
-    this->hash = other.hash;
+	this->hash = other.hash;
 
 	refCounterVbo[VboTextures]++;
 	refCounterVbo[VboModels]++;
@@ -348,11 +346,11 @@ RenderSection::RenderSection(const RenderSection &other) {
 }
 
 void RenderSection::SetEnabled(bool isEnabled) {
-    this->isEnabled = isEnabled;
+	this->isEnabled = isEnabled;
 }
 
 bool RenderSection::IsNeedUpdate() {
-    size_t currentHash = world->GetSection(sectionPosition).GetHash();
-    bool isNeedUpdate = currentHash != hash;
-    return isNeedUpdate;
+	size_t currentHash = world->GetSection(sectionPosition).GetHash();
+	bool isNeedUpdate = currentHash != hash;
+	return isNeedUpdate;
 }
\ No newline at end of file
diff --git a/src/graphics/RenderSection.hpp b/src/graphics/RenderSection.hpp
new file mode 100644
index 0000000..5973909
--- /dev/null
+++ b/src/graphics/RenderSection.hpp
@@ -0,0 +1,52 @@
+#pragma once
+
+#include <GL/glew.h>
+#include <glm/detail/type_mat.hpp>
+#include <glm/vec2.hpp>
+#include <glm/detail/type_mat4x4.hpp>
+#include <glm/gtx/transform.hpp>
+#include <easylogging++.h>
+
+#include <core/AssetManager.hpp>
+#include <world/Section.hpp>
+#include <world/World.hpp>
+
+class RenderState {
+	GLuint ActiveVao;
+	GLuint ActiveShader;
+public:
+	void SetActiveVao(GLuint Vao);
+	void SetActiveShader(GLuint Shader);
+};
+
+class RenderSection {
+	Vector sectionPosition;
+	World *world;
+	GLuint Vao, VboTextures, VboModels, VboColors;
+	std::vector<glm::mat4> models;
+	std::vector<glm::vec4> textures;
+	std::vector<glm::vec3> colors;
+
+	static GLuint VboVertices, VboUvs;
+	static std::map<GLuint, int> refCounterVbo;
+	static std::map<GLuint, int> refCounterVao;
+
+	size_t numOfFaces = 0;
+
+    bool isEnabled = true;
+
+    size_t hash = 0;
+public:
+	RenderSection(World *world, Vector position);
+	RenderSection(const RenderSection &other);
+	~RenderSection();
+
+	void UpdateState(const std::map<BlockTextureId, glm::vec4> &textureAtlas);
+	void Render(RenderState &state);
+
+    void SetEnabled(bool isEnabled);
+
+	Section *GetSection();
+
+    bool IsNeedUpdate();
+};
\ No newline at end of file
diff --git a/src/graphics/Shader.hpp b/src/graphics/Shader.hpp
new file mode 100644
index 0000000..17a434e
--- /dev/null
+++ b/src/graphics/Shader.hpp
@@ -0,0 +1,24 @@
+#pragma once
+
+#include <string>
+#include <fstream>
+#include <sstream>
+
+#include <easylogging++.h>
+#include <GL/glew.h>
+
+class Shader
+{
+private:
+    const GLchar *vertex;
+    const GLchar *fragment;
+public:
+    // Идентификатор программы
+    GLuint Program;
+    // Конструктор считывает и собирает шейдер
+    Shader(const GLchar* vertexPath, const GLchar* fragmentPath, const GLchar* geometryPath = nullptr);
+    // Использование программы
+    void Use();
+
+    void Reload();
+};
\ No newline at end of file
diff --git a/src/graphics/Texture.hpp b/src/graphics/Texture.hpp
new file mode 100644
index 0000000..277806a
--- /dev/null
+++ b/src/graphics/Texture.hpp
@@ -0,0 +1,14 @@
+#pragma once
+
+#include <SFML/Graphics.hpp>
+#include <easylogging++.h>
+#include <GL/glew.h>
+
+class Texture {
+    Texture(Texture&);
+    Texture&operator=(Texture&);
+public:
+    GLuint texture;
+    Texture(std::string filename, GLenum textureWrapping = GL_CLAMP_TO_BORDER, GLenum textureFiltering = GL_NEAREST);
+    ~Texture();
+};
\ No newline at end of file
diff --git a/src/graphics/Widget.hpp b/src/graphics/Widget.hpp
new file mode 100644
index 0000000..c4d5dc1
--- /dev/null
+++ b/src/graphics/Widget.hpp
@@ -0,0 +1,8 @@
+#pragma once
+
+class Widget {
+    unsigned int x,y,w,h;
+public:
+    Widget(Widget *parent);
+    ~Widget();
+};
diff --git a/src/main.cpp b/src/main.cpp
index aa30ff8..bcf573b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,4 +1,5 @@
-#include "../include/Core.hpp"
+#include "core/Core.hpp"
+#include <core/Event.hpp>
 
 const char *getTimeSinceProgramStart(void) {
     static auto initialTime = std::chrono::steady_clock().now();
@@ -25,6 +26,8 @@ int main() {
     el::Loggers::addFlag(el::LoggingFlag::ColoredTerminalOutput);
     LOG(INFO) << "Logger is configured";
 
+	LOG(FATAL)<<"Sizeof data is "<<sizeof(EventData);
+
     Core core;
     core.Exec();
 
diff --git a/src/network/Network.cpp b/src/network/Network.cpp
index 91cb481..798756d 100644
--- a/src/network/Network.cpp
+++ b/src/network/Network.cpp
@@ -1,8 +1,12 @@
 #include <network/Network.hpp>
 
 Network::Network(std::string address, unsigned short port) {
-	socket = new Socket(address, port);
-	stream = new StreamSocket(socket);
+	try {
+		socket = new Socket(address, port);
+		stream = new StreamSocket(socket);
+	} catch (std::exception &e) {
+		LOG(FATAL)<<e.what();
+	}
 }
 
 Network::~Network() {
diff --git a/src/network/Network.hpp b/src/network/Network.hpp
new file mode 100644
index 0000000..1281289
--- /dev/null
+++ b/src/network/Network.hpp
@@ -0,0 +1,26 @@
+#pragma once
+
+#include <memory>
+#include "Socket.hpp"
+#include "Packet.hpp"
+
+enum ConnectionState {
+	Handshaking,
+	Login,
+	Play,
+	Status,
+};
+
+class Network {
+	Socket *socket;
+	StreamSocket *stream;
+
+	std::shared_ptr<Packet> ReceivePacketByPacketId(int packetId, ConnectionState state, StreamInput &stream);
+public:
+	Network(std::string address, unsigned short port);
+	~Network();
+
+	std::shared_ptr<Packet> ReceivePacket(ConnectionState state = Play);
+	void SendPacket(Packet &packet);
+	std::shared_ptr<Packet> ParsePacketPlay(PacketNamePlayCB id);
+};
\ No newline at end of file
diff --git a/src/network/NetworkClient.hpp b/src/network/NetworkClient.hpp
new file mode 100644
index 0000000..22b1b22
--- /dev/null
+++ b/src/network/NetworkClient.hpp
@@ -0,0 +1,26 @@
+#pragma once
+
+#include <thread>
+#include <queue>
+#include <mutex>
+
+#include <network/Network.hpp>
+
+class NetworkClient {
+	Network network;
+	std::thread networkThread;
+	std::mutex toSendMutex;
+	std::mutex toReceiveMutex;
+	std::queue <std::shared_ptr<Packet>> toSend;
+	std::queue <std::shared_ptr<Packet>> toReceive;
+	bool isActive=true;
+	bool &isRunning;
+	ConnectionState state;
+	void NetworkLoop();
+public:
+	NetworkClient(std::string address, unsigned short port, std::string username, bool &quit);
+	~NetworkClient();
+
+	std::shared_ptr <Packet> ReceivePacket();
+	void SendPacket(std::shared_ptr<Packet> packet);
+};
\ No newline at end of file
diff --git a/src/network/Packet.hpp b/src/network/Packet.hpp
new file mode 100644
index 0000000..685e3da
--- /dev/null
+++ b/src/network/Packet.hpp
@@ -0,0 +1,521 @@
+#pragma once
+
+#include <easylogging++.h>
+
+#include <network/Stream.hpp>
+
+enum PacketNameLoginSB {
+	LoginStart = 0x00,
+	EncryptionResponse = 0x01,
+};
+enum PacketNamePlaySB {
+	TeleportConfirm,
+	PrepareCraftingGrid,
+	TabCompleteSB,
+	ChatMessageSB,
+	ClientStatus,
+	ClientSettings,
+	ConfirmTransactionSB,
+	EnchantItem,
+	ClickWindow,
+	CloseWindowSB,
+	PluginMessageSB,
+	UseEntity,
+	KeepAliveSB,
+	Player,
+	PlayerPosition,
+	PlayerPositionAndLookSB,
+	PlayerLook,
+	VehicleMoveSB,
+	SteerBoat,
+	PlayerAbilitiesSB,
+	PlayerDigging,
+	EntityAction,
+	SteerVehicle,
+	CraftingBookData,
+	ResourcePackStatus,
+	AdvancementTab,
+	HeldItemChangeSB,
+	CreativeInventoryAction,
+	UpdateSign,
+	AnimationSB,
+	Spectate,
+	PlayerBlockPlacement,
+	UseItem,
+};
+
+enum PacketNameHandshakingCB {
+	Handshake = 0x00,
+};
+enum PacketNameLoginCB {
+	Disconnect = 0x00,
+	EncryptionRequest = 0x01,
+	LoginSuccess = 0x02,
+	SetCompression = 0x03,
+};
+enum PacketNamePlayCB {
+	SpawnObject = 0x00,
+	SpawnExperienceOrb,
+	SpawnGlobalEntity,
+	SpawnMob,
+	SpawnPainting,
+	SpawnPlayer,
+	AnimationCB,
+	Statistics,
+	BlockBreakAnimation,
+	UpdateBlockEntity,
+	BlockAction,
+	BlockChange,
+	BossBar,
+	ServerDifficulty,
+	TabCompleteCB,
+	ChatMessageCB,
+	MultiBlockChange,
+	ConfirmTransactionCB,
+	CloseWindowCB,
+	OpenWindow,
+	WindowItems,
+	WindowProperty,
+	SetSlot,
+	SetCooldown,
+	PluginMessageCB,
+	NamedSoundEffect,
+	DisconnectPlay,
+	EntityStatus,
+	Explosion,
+	UnloadChunk,
+	ChangeGameState,
+	KeepAliveCB,
+	ChunkData,
+	Effect,
+	Particle,
+	JoinGame,
+	Map,
+	EntityRelativeMove,
+	EntityLookAndRelativeMove,
+	EntityLook,
+	Entity,
+	VehicleMove,
+	OpenSignEditor,
+	PlayerAbilitiesCB,
+	CombatEvent,
+	PlayerListItem,
+	PlayerPositionAndLookCB,
+	UseBed,
+	UnlockRecipes,
+	DestroyEntities,
+	RemoveEntityEffect,
+	ResourcePackSend,
+	Respawn,
+	EntityHeadLook,
+	SelectAdvancementTab,
+	WorldBorder,
+	Camera,
+	HeldItemChangeCB,
+	DisplayScoreboard,
+	EntityMetadata,
+	AttachEntity,
+	EntityVelocity,
+	EntityEquipment,
+	SetExperience,
+	UpdateHealth,
+	ScoreboardObjective,
+	SetPassengers,
+	Teams,
+	UpdateScore,
+	SpawnPosition,
+	TimeUpdate,
+	Title,
+	SoundEffect,
+	PlayerListHeaderAndFooter,
+	CollectItem,
+	EntityTeleport,
+	Advancements,
+	EntityProperties,
+	EntityEffect,
+};
+
+struct Packet {
+	virtual ~Packet() = default;
+	virtual void ToStream(StreamOutput *stream) = 0;
+	virtual void FromStream(StreamInput *stream) = 0;
+	virtual int GetPacketId() = 0;
+};
+
+struct PacketHandshake : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteVarInt(protocolVersion);
+		stream->WriteString(serverAddress);
+		stream->WriteUShort(serverPort);
+		stream->WriteVarInt(nextState);
+	}
+
+	void FromStream(StreamInput *stream) override {
+		protocolVersion = stream->ReadVarInt();
+		serverAddress = stream->ReadString();
+		serverPort = stream->ReadUShort();
+		nextState = stream->ReadVarInt();
+	}
+
+	int GetPacketId() override {
+		return PacketNameHandshakingCB::Handshake;
+	}
+
+	int protocolVersion;
+	std::string serverAddress;
+	unsigned short serverPort;
+	int nextState;
+};
+
+struct PacketLoginStart : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteString(Username);
+	}
+
+	void FromStream(StreamInput *stream) override {
+		Username = stream->ReadString();
+	}
+
+	int GetPacketId() override {
+		return PacketNameLoginSB::LoginStart;
+	}
+
+	std::string Username;
+};
+
+struct PacketLoginSuccess : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteString(Uuid);
+		stream->WriteString(Username);
+	}
+
+	void FromStream(StreamInput *stream) override {
+		Uuid = stream->ReadString();
+		Username = stream->ReadString();
+	}
+
+	int GetPacketId() override {
+		return PacketNameLoginCB::LoginSuccess;
+	}
+
+	std::string Uuid;
+	std::string Username;
+};
+
+struct PacketJoinGame : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteInt(EntityId);
+		stream->WriteUByte(Gamemode);
+		stream->WriteInt(Dimension);
+		stream->WriteUByte(Difficulty);
+		stream->WriteUByte(MaxPlayers);
+		stream->WriteString(LevelType);
+		stream->WriteBool(ReducedDebugInfo);
+	}
+
+	void FromStream(StreamInput *stream) override {
+		EntityId = stream->ReadInt();
+		Gamemode = stream->ReadUByte();
+		Dimension = stream->ReadInt();
+		Difficulty = stream->ReadUByte();
+		MaxPlayers = stream->ReadUByte();
+		LevelType = stream->ReadString();
+		ReducedDebugInfo = stream->ReadBool();
+	}
+
+	int GetPacketId() override {
+		return PacketNamePlayCB::JoinGame;
+	}
+
+	int EntityId;
+	unsigned char Gamemode;
+	int Dimension;
+	unsigned char Difficulty;
+	unsigned char MaxPlayers;
+	std::string LevelType;
+	bool ReducedDebugInfo;
+};
+
+struct PacketDisconnectPlay : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteString(Reason); //TODO: Implement chat-wrapper
+	}
+
+	void FromStream(StreamInput *stream) override {
+		Reason = stream->ReadChat();
+	}
+
+	int GetPacketId() override {
+		return PacketNamePlayCB::DisconnectPlay;
+	}
+
+	std::string Reason;
+};
+
+struct PacketSpawnPosition : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WritePosition(Location);
+	}
+
+	void FromStream(StreamInput *stream) override {
+		Location = stream->ReadPosition();
+	}
+
+	int GetPacketId() override {
+		return PacketNamePlayCB::SpawnPosition;
+	}
+
+	Vector Location;
+};
+
+struct PacketKeepAliveCB : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteVarInt(KeepAliveId);
+	}
+
+	void FromStream(StreamInput *stream) override {
+		KeepAliveId = stream->ReadVarInt();
+	}
+
+	int GetPacketId() override {
+		return PacketNamePlayCB::KeepAliveCB;
+	}
+
+	int KeepAliveId;
+};
+
+struct PacketKeepAliveSB : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteVarInt(KeepAliveId);
+	}
+
+	void FromStream(StreamInput *stream) override {
+		KeepAliveId = stream->ReadVarInt();
+	}
+
+	int GetPacketId() override {
+		return PacketNamePlaySB::KeepAliveSB;
+	}
+
+	int KeepAliveId;
+
+	PacketKeepAliveSB(int KeepAliveId) : KeepAliveId(KeepAliveId) {}
+};
+
+struct PacketPlayerPositionAndLookCB : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteDouble(X);
+		stream->WriteDouble(Y);
+		stream->WriteDouble(Z);
+		stream->WriteFloat(Yaw);
+		stream->WriteFloat(Pitch);
+		stream->WriteUByte(Flags);
+		stream->WriteVarInt(TeleportId);
+	}
+
+	void FromStream(StreamInput *stream) override {
+		X = stream->ReadDouble();
+		Y = stream->ReadDouble();
+		Z = stream->ReadDouble();
+		Yaw = stream->ReadFloat();
+		Pitch = stream->ReadFloat();
+		Flags = stream->ReadUByte();
+		TeleportId = stream->ReadVarInt();
+	}
+
+	int GetPacketId() override {
+		return PacketNamePlayCB::PlayerPositionAndLookCB;
+	}
+
+	double X;
+	double Y;
+	double Z;
+	float Yaw;
+	float Pitch;
+	unsigned char Flags;
+	int TeleportId;
+};
+
+struct PacketTeleportConfirm : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteVarInt(TeleportId);
+	}
+
+	void FromStream(StreamInput *stream) override {
+		TeleportId = stream->ReadVarInt();
+	}
+
+	int GetPacketId() override {
+		return PacketNamePlaySB::TeleportConfirm;
+	}
+
+	int TeleportId;
+
+	PacketTeleportConfirm(int TeleportId) : TeleportId(TeleportId) {}
+};
+
+struct PacketClientStatus : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteVarInt(ActionId);
+	}
+
+	void FromStream(StreamInput *stream) override {
+		ActionId = stream->ReadVarInt();
+	}
+
+	int GetPacketId() override {
+		return PacketNamePlaySB::ClientStatus;
+	}
+
+	int ActionId;
+
+	PacketClientStatus(int ActionId) : ActionId(ActionId) {}
+};
+
+struct PacketPlayerPositionAndLookSB : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteDouble(X);
+		stream->WriteDouble(FeetY);
+		stream->WriteDouble(Z);
+		stream->WriteFloat(Yaw);
+		stream->WriteFloat(Pitch);
+		stream->WriteBool(OnGround);
+	}
+
+	void FromStream(StreamInput *stream) override {
+		X = stream->ReadDouble();
+		FeetY = stream->ReadDouble();
+		Z = stream->ReadDouble();
+		Yaw = stream->ReadFloat();
+		Pitch = stream->ReadFloat();
+		OnGround = stream->ReadBool();
+	}
+
+	int GetPacketId() override {
+		return PacketNamePlaySB::PlayerPositionAndLookSB;
+	}
+
+
+	double X;
+	double FeetY;
+	double Z;
+	float Yaw;
+	float Pitch;
+	bool OnGround;
+
+	PacketPlayerPositionAndLookSB(double X, double FeetY, double Z,
+	                              float Yaw, float Pitch, bool OnGround) : X(X), FeetY(FeetY), Z(Z), Yaw(Yaw),
+	                                                                       Pitch(Pitch), OnGround(OnGround) {}
+};
+
+struct PacketChunkData : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteInt(ChunkX);
+		stream->WriteInt(ChunkZ);
+		stream->WriteBool(GroundUpContinuous);
+		stream->WriteInt(PrimaryBitMask);
+		stream->WriteVarInt(Data.size());
+		stream->WriteByteArray(Data);
+		stream->WriteVarInt(BlockEntities.size());
+		LOG(FATAL) << "Serializing unimplemented packet";
+	}
+
+	void FromStream(StreamInput *stream) override {
+		ChunkX = stream->ReadInt();
+		ChunkZ = stream->ReadInt();
+		GroundUpContinuous = stream->ReadBool();
+		PrimaryBitMask = stream->ReadVarInt();
+		int Size = stream->ReadVarInt();
+		Data = stream->ReadByteArray(Size);
+		int NumberOfBlockEntities = stream->ReadVarInt(); //TODO: Need NBT
+		for (int i = 0; i < NumberOfBlockEntities; i++) {
+			//BlockEntities[i] = stream->ReadNbt();
+		}
+	}
+
+	int GetPacketId() override {
+		return PacketNamePlayCB::ChunkData;
+	}
+
+	int ChunkX;
+	int ChunkZ;
+	bool GroundUpContinuous;
+	int PrimaryBitMask;
+	//int Size;
+	std::vector<unsigned char> Data;
+	//int NumberOfBlockEntities;
+	std::vector<int> BlockEntities; //TODO: Replace int with NbtTag and implement NbtTree
+};
+
+struct PacketPlayerPosition : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteDouble(X);
+		stream->WriteDouble(FeetY);
+		stream->WriteDouble(Z);
+		stream->WriteBool(OnGround);
+	}
+
+	void FromStream(StreamInput *stream) override {
+		X = stream->ReadDouble();
+		FeetY = stream->ReadDouble();
+		Z = stream->ReadDouble();
+		OnGround = stream->ReadBool();
+	}
+
+	int GetPacketId() override {
+		return PacketNamePlaySB::PlayerPosition;
+	}
+
+	double X;
+	double FeetY;
+	double Z;
+	bool OnGround;
+
+	PacketPlayerPosition(double X, double Y, double Z, bool ground) : X(X), FeetY(Y), Z(Z), OnGround(ground) {}
+};
+
+struct PacketPlayerLook : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteFloat(Yaw);
+		stream->WriteFloat(Pitch);
+		stream->WriteBool(OnGround);
+	}
+
+	void FromStream(StreamInput *stream) override {
+		Yaw = stream->ReadFloat();
+		Pitch = stream->ReadFloat();
+		OnGround = stream->ReadBool();
+	}
+
+	int GetPacketId() override {
+		return PacketNamePlaySB::PlayerLook;
+	}
+
+	float Yaw;
+	float Pitch;
+	bool OnGround;
+
+	PacketPlayerLook(float Yaw, float Pitch, bool ground) : Yaw(Yaw), Pitch(Pitch), OnGround(ground) {}
+};
+
+struct PacketUpdateHealth : Packet {
+	void ToStream(StreamOutput *stream) override {
+		stream->WriteFloat(Health);
+		stream->WriteVarInt(Food);
+		stream->WriteFloat(FoodSaturation);
+	}
+
+	void FromStream(StreamInput *stream) override {
+		Health = stream->ReadFloat();
+		Food = stream->ReadVarInt();
+		FoodSaturation = stream->ReadFloat();
+	}
+
+	int GetPacketId() override {
+		return PacketNamePlayCB::UpdateHealth;
+	}
+
+	float Health;
+	int Food;
+	float FoodSaturation;
+};
\ No newline at end of file
diff --git a/src/network/Socket.hpp b/src/network/Socket.hpp
new file mode 100644
index 0000000..48bcad9
--- /dev/null
+++ b/src/network/Socket.hpp
@@ -0,0 +1,46 @@
+#pragma once
+
+#include <string>
+
+#include <SFML/Network.hpp>
+
+/**
+ * Platform independent class for working with platform dependent hardware socket
+ * @brief Wrapper around raw sockets
+ * @warning Connection state is based on lifetime of Socket object instance, ie connected at ctor and disconnect at dtor
+ * @todo Replace SFML's socket with  WinSock and POSIX's socket implementation
+ */
+class Socket {
+	sf::TcpSocket socket;
+public:
+	/**
+	 * Constructs Socket class instance from IP's string and Port number and connects to remote server
+	 * @param[in] address IP address of remote server. String should be ANSI and contains 4 one-byte values separated by dots
+	 * @param[in] port target port of remote server to connect
+	 * @throw std::runtime_error if connection is failed
+	 */
+	Socket(std::string address, unsigned short port);
+
+	/**
+	 * Destruct Socket instance and disconnect from server
+	 * @warning There is no way to force disconnect, except use delete for manually allocated objects and scope of visibility for variables on stack
+	 */
+	~Socket();
+
+	/**
+	 * Reads data from socket and write to buffer
+	 * @warning This is blocking function, and execution flow will not be returned until all required data is sended
+	 * @warning Reported buffer length must be <= actual size of buffer, or memory corruption will be caused
+	 * @param[out] buffPtr Pointer to buffer, where data must be placed
+	 * @param[in] buffLen Length of data, that must be readed from server and writed to buffer
+	 */
+	void Read(unsigned char *buffPtr, size_t buffLen);
+
+	/**
+	 * Writes data from buffer to socket
+	 * @warning This is blocking function, and execution flow will not be returned until all required data is received
+	 * @param[in] buffPtr Pointer to buffer that contain data to send
+	 * @param[in] buffLen Length of buffer
+	 */
+	void Write(unsigned char *buffPtr, size_t buffLen);
+};
\ No newline at end of file
diff --git a/src/network/Stream.hpp b/src/network/Stream.hpp
new file mode 100644
index 0000000..a24dfbe
--- /dev/null
+++ b/src/network/Stream.hpp
@@ -0,0 +1,107 @@
+#pragma once
+
+#include <algorithm>
+#include <string>
+#include <stdexcept>
+#include <vector>
+#include <cstring>
+
+#include <nlohmann/json.hpp>
+#include <easylogging++.h>
+
+#include <network/Socket.hpp>
+#include <Vector.hpp>
+#include <Utility.hpp>
+
+class Stream {
+public:
+	virtual ~Stream() {};
+};
+
+class StreamInput : Stream {
+	virtual void ReadData(unsigned char *buffPtr, size_t buffLen) = 0;
+public:
+	virtual ~StreamInput() = default;
+	bool ReadBool();
+	signed char ReadByte();
+	unsigned char ReadUByte();
+	short ReadShort();
+	unsigned short ReadUShort();
+	int ReadInt();
+	long long ReadLong();
+	float ReadFloat();
+	double ReadDouble();
+	std::string ReadString();
+	std::string ReadChat();
+	int ReadVarInt();
+	long long ReadVarLong();
+	std::vector<unsigned char> ReadEntityMetadata();
+	std::vector<unsigned char> ReadSlot();
+	std::vector<unsigned char> ReadNbtTag();
+	Vector ReadPosition();
+	unsigned char ReadAngle();
+	std::vector<unsigned char> ReadUuid();
+	std::vector<unsigned char> ReadByteArray(size_t arrLength);
+};
+
+class StreamOutput : Stream {
+	virtual void WriteData(unsigned char *buffPtr, size_t buffLen) = 0;
+public:
+	virtual ~StreamOutput() = default;
+	void WriteBool(bool value);
+	void WriteByte(signed char value);
+	void WriteUByte(unsigned char value);
+	void WriteShort(short value);
+	void WriteUShort(unsigned short value);
+	void WriteInt(int value);
+	void WriteLong(long long value);
+	void WriteFloat(float value);
+	void WriteDouble(double value);
+	void WriteString(std::string value);
+	void WriteChat(std::string value);
+	void WriteVarInt(int value);
+	void WriteVarLong(long long value);
+	void WriteEntityMetadata(std::vector<unsigned char> value);
+	void WriteSlot(std::vector<unsigned char> value);
+	void WriteNbtTag(std::vector<unsigned char> value);
+	void WritePosition(Vector value);
+	void WriteAngle(unsigned char value);
+	void WriteUuid(std::vector<unsigned char> value);
+	void WriteByteArray(std::vector<unsigned char> value);
+};
+
+class StreamBuffer : public StreamInput, public StreamOutput {
+	unsigned char *buffer;
+	unsigned char *bufferPtr;
+	size_t bufferLength;
+
+	void ReadData(unsigned char *buffPtr, size_t buffLen) override;
+	void WriteData(unsigned char *buffPtr, size_t buffLen) override;
+
+public:
+	StreamBuffer(unsigned char *data, size_t dataLen);
+	StreamBuffer(size_t bufferLen);
+	~StreamBuffer();
+
+	std::vector<unsigned char> GetBuffer();
+};
+
+class StreamCounter : public StreamOutput {
+	void WriteData(unsigned char *buffPtr, size_t buffLen) override;
+
+	size_t size;
+public:
+	StreamCounter(size_t initialSize = 0);
+	~StreamCounter();
+
+	size_t GetCountedSize();
+};
+
+class StreamSocket : public StreamInput, public StreamOutput {
+	Socket *socket;
+	void ReadData(unsigned char *buffPtr, size_t buffLen) override;
+	void WriteData(unsigned char *buffPtr, size_t buffLen) override;
+public:
+	StreamSocket(Socket *socketPtr);
+	~StreamSocket() = default;
+};
\ No newline at end of file
diff --git a/src/world/Block.hpp b/src/world/Block.hpp
new file mode 100644
index 0000000..2f823fe
--- /dev/null
+++ b/src/world/Block.hpp
@@ -0,0 +1,15 @@
+#pragma once
+
+struct Block {
+	Block();
+
+	Block(unsigned short id, unsigned char state);
+
+	~Block();
+
+	unsigned short id : 13;
+	unsigned char state : 4;
+	//unsigned char light:4;
+};
+
+bool operator<(const Block &lhs, const Block &rhs);
\ No newline at end of file
diff --git a/src/world/Collision.hpp b/src/world/Collision.hpp
new file mode 100644
index 0000000..b88fbf7
--- /dev/null
+++ b/src/world/Collision.hpp
@@ -0,0 +1,8 @@
+#pragma once
+
+struct AABB {
+	double x,y,z;
+	double w,l,h;
+};
+
+bool TestCollision(AABB first, AABB second);
\ No newline at end of file
diff --git a/src/world/GameState.cpp b/src/world/GameState.cpp
index 79e2f1b..d3a6bd3 100644
--- a/src/world/GameState.cpp
+++ b/src/world/GameState.cpp
@@ -1,4 +1,4 @@
-#include <GameState.hpp>
+#include <world/GameState.hpp>
 
 GameState::GameState(NetworkClient *Net, bool &quit) : nc(Net), isRunning(quit) {
 	Front = glm::vec3(0.0f, 0.0f, -1.0f);
diff --git a/src/world/GameState.hpp b/src/world/GameState.hpp
new file mode 100644
index 0000000..6741882
--- /dev/null
+++ b/src/world/GameState.hpp
@@ -0,0 +1,71 @@
+#pragma once
+
+#include <nlohmann/json.hpp>
+#include <glm/glm.hpp>
+#include <glm/gtc/matrix_transform.hpp>
+
+#include <world/World.hpp>
+#include <network/NetworkClient.hpp>
+#include <Vector.hpp>
+
+class GameState {
+	NetworkClient *nc;
+public:
+	GameState(NetworkClient *NetClient, bool &quit);
+
+	void Update(float deltaTime);
+
+	//Navigation
+	enum Direction {
+		FORWARD, BACKWARD, LEFT, RIGHT, JUMP
+	};
+	void HandleMovement(GameState::Direction direction, float deltaTime);
+	void HandleRotation(double yaw, double pitch);
+	glm::mat4 GetViewMatrix();
+	void updateCameraVectors();
+
+	float Yaw();
+	float Pitch();
+	void SetYaw(float yaw);
+	void SetPitch(float pitch);
+
+	glm::vec3 Position();
+	void SetPosition(glm::vec3 Position);
+	glm::vec3 Front;
+	glm::vec3 Up;
+	glm::vec3 Right;
+	glm::vec3 WorldUp;
+
+	//Everything other
+	World world;
+	bool &isRunning;
+
+	std::string g_PlayerUuid;
+	std::string g_PlayerName;
+	bool g_IsGameStarted;
+	int g_PlayerEid;
+	int g_Gamemode;
+	int g_Dimension;
+	byte g_Difficulty;
+	byte g_MaxPlayers;
+	std::string g_LevelType;
+	bool g_ReducedDebugInfo;
+	Vector g_SpawnPosition;
+	bool g_PlayerInvulnerable;
+	bool g_PlayerFlying;
+	bool g_PlayerAllowFlying;
+	bool g_PlayerCreativeMode;
+	float g_PlayerFlyingSpeed;
+	float g_PlayerFovModifier;
+	float g_PlayerPitch;
+	float g_PlayerYaw;
+	double g_PlayerX;
+	double g_PlayerY;
+	double g_PlayerZ;
+	float g_PlayerHealth;
+
+	bool g_OnGround = true;
+	double g_PlayerVelocityX = 0;
+	double g_PlayerVelocityY = 0;
+	double g_PlayerVelocityZ = 0;
+};
diff --git a/src/world/Section.cpp b/src/world/Section.cpp
index 279d2b2..ff2a4fb 100644
--- a/src/world/Section.cpp
+++ b/src/world/Section.cpp
@@ -47,28 +47,28 @@ void Section::Parse() {
 		endswap(&longArray[i]);
 	std::vector<unsigned short> blocks;
 	blocks.reserve(4096);
-    {
-        auto begin = std::chrono::steady_clock::now();
-        int bitPos = 0;
-        unsigned short t = 0;
-        for (size_t i = 0; i < m_dataBlocksLen; i++) {
-            for (int j = 0; j < 8; j++) {
-                t |= (m_dataBlocks[i] & 0x01) ? 0x80 : 0x00;
-                t >>= 1;
-                m_dataBlocks[i] >>= 1;
-                bitPos++;
-                if (bitPos >= m_bitsPerBlock) {
-                    bitPos = 0;
-                    t >>= m_bitsPerBlock - 1;
-                    blocks.push_back(t);
-                    t = 0;
-                }
-            }
-        }
-        auto end = std::chrono::steady_clock::now();
-        std::chrono::duration<double, std::milli> time = end - begin;
-        totalParsingTime += time.count();
-    }
+	{
+		auto begin = std::chrono::steady_clock::now();
+		int bitPos = 0;
+		unsigned short t = 0;
+		for (size_t i = 0; i < m_dataBlocksLen; i++) {
+			for (int j = 0; j < 8; j++) {
+				t |= (m_dataBlocks[i] & 0x01) ? 0x80 : 0x00;
+				t >>= 1;
+				m_dataBlocks[i] >>= 1;
+				bitPos++;
+				if (bitPos >= m_bitsPerBlock) {
+					bitPos = 0;
+					t >>= m_bitsPerBlock - 1;
+					blocks.push_back(t);
+					t = 0;
+				}
+			}
+		}
+		auto end = std::chrono::steady_clock::now();
+		std::chrono::duration<double, std::milli> time = end - begin;
+		totalParsingTime += time.count();
+	}
 	std::vector<byte> light;
 	light.reserve(4096);
 	for (int i = 0; i < 2048; i++) {
@@ -137,8 +137,11 @@ Vector Section::GetPosition() {
 }
 
 size_t Section::GetHash() {
-    if (m_blocks.empty())
-        return 0;
-    std::string str((unsigned char*)m_blocks.data(), (unsigned char*)m_blocks.data() + m_blocks.size() * sizeof(Block));
-    return std::hash<std::string>{}(str);
+	if (m_blocks.empty()) return 0;
+
+	unsigned char *from = reinterpret_cast<unsigned char *>(m_blocks.data());
+	size_t length = m_blocks.size() * sizeof(Block);
+
+	std::string str(from, from + length);
+	return std::hash<std::string>{}(str);
 }
\ No newline at end of file
diff --git a/src/world/Section.hpp b/src/world/Section.hpp
new file mode 100644
index 0000000..2df0cfe
--- /dev/null
+++ b/src/world/Section.hpp
@@ -0,0 +1,51 @@
+#pragma once
+
+#include <vector>
+#include <map>
+#include <condition_variable>
+#include <functional>
+
+#include <easylogging++.h>
+
+#include <world/Block.hpp>
+#include <Vector.hpp>
+#include <Utility.hpp>
+
+const int SECTION_WIDTH = 16;
+const int SECTION_LENGTH = 16;
+const int SECTION_HEIGHT = 16;
+
+class Section {
+	std::vector<unsigned short> m_palette;
+	byte *m_dataBlocks = nullptr;
+	size_t m_dataBlocksLen;
+	byte *m_dataLight = nullptr;
+	byte *m_dataSkyLight = nullptr;
+	byte m_bitsPerBlock = 0;
+	std::vector<Block> m_blocks;
+	std::condition_variable parseWaiter;
+
+	Section();
+
+	Vector worldPosition;
+
+public:
+	void Parse();
+
+	Section(Vector position, byte *dataBlocks, size_t dataBlocksLength, byte *dataLight, byte *dataSky, byte bitsPerBlock,
+	        std::vector<unsigned short> palette);
+
+	~Section();
+
+	Block &GetBlock(Vector pos);
+
+	Section &operator=(Section other);
+
+	friend void swap(Section &a, Section &b);
+
+	Section(const Section &other);
+
+	Vector GetPosition();
+
+    size_t GetHash();
+};
\ No newline at end of file
diff --git a/src/world/World.hpp b/src/world/World.hpp
new file mode 100644
index 0000000..6b09f1f
--- /dev/null
+++ b/src/world/World.hpp
@@ -0,0 +1,38 @@
+#pragma once
+
+#include <map>
+#include <bitset>
+
+#include <easylogging++.h>
+
+#include <world/Block.hpp>
+#include <world/Section.hpp>
+#include <network/Packet.hpp>
+#include <world/Collision.hpp>
+
+class World {
+	std::map<Vector, Section> sections;
+	std::map<Vector, std::mutex> sectionMutexes;
+	int dimension = 0;
+
+	Section ParseSection(StreamInput *data, Vector position);
+
+	World(const World &other);
+	World &operator=(const World &other);
+public:
+	World();
+
+	~World();
+
+	void ParseChunkData(std::shared_ptr<PacketChunkData> packet);
+
+	bool isPlayerCollides(double X, double Y, double Z);
+
+	Block &GetBlock(Vector pos);
+
+	std::vector<Vector> GetSectionsList();
+
+	Section &GetSection(Vector sectionPos);
+
+	glm::vec3 Raycast(glm::vec3 position, glm::vec3 direction, float maxLength = 1000.0f, float minPrecision = 0.01f);
+};
\ No newline at end of file