start splitting parserstate from analysing

src/Data/Match.ts

@@ -1,19 +1,12 @@
 import {BitStream} from 'bit-buffer';
-import {handleDataTable} from '../PacketHandler/DataTable';
 import {handleGameEvent} from '../PacketHandler/GameEvent';
-import {handleGameEventList} from '../PacketHandler/GameEventList';
 import {handlePacketEntities} from '../PacketHandler/PacketEntities';
 import {handleSayText2} from '../PacketHandler/SayText2';
-import {handleStringTable, handleStringTables, handleStringTableUpdate} from '../PacketHandler/StringTable';
 import {Building} from './Building';
 import {Death} from './Death';
-import {GameEventDefinition} from './GameEvent';
 import {EntityId, PacketEntity} from './PacketEntity';
 import {Player} from './Player';
 import {PlayerResource} from './PlayerResource';
-import {SendTable, SendTableName} from './SendTable';
-import {ServerClass, ServerClassId} from './ServerClass';
-import {StringTable} from './StringTable';
 import {Team, TeamNumber} from './Team';
 import {UserInfo} from './UserInfo';
 import {Weapon} from './Weapon';
@@ -21,11 +14,10 @@ import {World} from './World';
 import {Round} from './Round';
 import {Chat} from './Chat';
 import {Packet} from './Packet';
-import {GameEventType} from './GameEventTypes';
 import {ParserState} from './ParserState';
-import {SendProp} from './SendProp';
+import {StringTableEntry} from './StringTable';
 
-export class Match implements ParserState {
+export class Match {
 	public tick: number = 0;
 	public chat: Chat[] = [];
 	public users: Map<number, UserInfo> = new Map();
@@ -33,26 +25,18 @@ export class Match implements ParserState {
 	public rounds: Round[] = [];
 	public startTick: number = 0;
 	public intervalPerTick: number = 0;
-	public staticBaseLines: Map<ServerClassId, BitStream> = new Map();
-	public staticBaselineCache: Map<ServerClassId, SendProp[]> = new Map();
-	public eventDefinitions: Map<number, GameEventDefinition<GameEventType>> = new Map();
 	public world: World = {
 		boundaryMin: {x: 0, y: 0, z: 0},
 		boundaryMax: {x: 0, y: 0, z: 0},
 	};
 	public playerEntityMap: Map<EntityId, Player> = new Map();
-	public entityClasses: Map<EntityId, ServerClass> = new Map();
-	public sendTables: Map<SendTableName, SendTable> = new Map();
-	public instanceBaselines: [Map<EntityId, SendProp[]>, Map<EntityId, SendProp[]>] = [new Map(), new Map()];
 	public weaponMap: Map<EntityId, Weapon> = new Map();
 	public outerMap: Map<number, EntityId> = new Map();
 	public teams: Map<TeamNumber, Team> = new Map();
 	public teamEntityMap: Map<EntityId, Team> = new Map();
-	public version: number = 0;
 	public buildings: Map<EntityId, Building> = new Map();
 	public playerResources: PlayerResource[] = [];
-	public stringTables: StringTable[] = [];
+	public readonly parserState: ParserState = new ParserState();
-	public serverClasses: ServerClass[] = [];
 
 	public getState() {
 		const users = {};
@@ -91,32 +75,55 @@ export class Match implements ParserState {
 				break;
 			case 'serverInfo':
 				this.intervalPerTick = packet.intervalPerTick;
-				this.version = packet.version;
+				break;
+			case 'createStringTable':
+				if (packet.table.name === 'userinfo') {
+					this.calculateUserInfo();
+				}
 				break;
 			case 'sayText2':
 				handleSayText2(packet, this);
 				break;
-			case 'dataTable':
-				handleDataTable(packet, this);
-				break;
-			case 'stringTable':
-				handleStringTables(packet, this);
-				break;
-			case 'createStringTable':
-				handleStringTable(packet, this);
-				break;
-			case 'updateStringTable':
-				handleStringTableUpdate(packet, this);
-				break;
-			case 'gameEventList':
-				handleGameEventList(packet, this);
-				break;
 			case 'gameEvent':
 				handleGameEvent(packet, this);
 				break;
 		}
 	}
 
+	private calculateUserInfo() {
+		for (const [text, extraData] of this.parserState.userInfoEntries.entries()) {
+			this.calculateUserInfoFromEntry(text, extraData);
+		}
+	}
+
+	private calculateUserInfoByEntityId(entityId: number) {
+		const text = `${entityId - 1}`;
+		const extraData = this.parserState.userInfoEntries.get(text);
+		if (!extraData) {
+			throw new Error(`No user info in stringable for entity id ${entityId}`);
+		}
+		return this.calculateUserInfoFromEntry(text, extraData);
+	}
+
+	private calculateUserInfoFromEntry(text: string, extraData: BitStream): UserInfo {
+		if (extraData.bitsLeft > (32 * 8)) {
+			const name = extraData.readUTF8String(32);
+			const userId = extraData.readUint32();
+			const steamId = extraData.readUTF8String();
+			if (steamId) {
+				const userState = this.getUserInfo(userId);
+				userState.name = name;
+				userState.steamId = steamId;
+				userState.entityId = parseInt(text, 10) + 1;
+				return userState;
+			} else {
+				throw new Error(`No steamid for user info ${text}`);
+			}
+		} else {
+			throw new Error();
+		}
+	}
+
 	public getUserInfo(userId: number): UserInfo {
 		// no clue why it does this
 		// only seems to be the case with per user ready
@@ -125,6 +132,7 @@ export class Match implements ParserState {
 		}
 		const user = this.users.get(userId);
 		if (!user) {
+
 			const newUser = {
 				name: '',
 				userId,
@@ -139,12 +147,12 @@ export class Match implements ParserState {
 		return user;
 	}
 
-	public getUserInfoForEntity(entity: PacketEntity): UserInfo {
+	public getUserInfoForEntity(entity: PacketEntity): UserInfo | null {
 		for (const user of this.users.values()) {
 			if (user && user.entityId === entity.entityIndex) {
 				return user;
 			}
 		}
-		throw new Error('User not found for entity ' + entity.entityIndex);
+		return this.calculateUserInfoByEntityId(entity.entityIndex);
 	}
 }

src/Data/Message.ts

@@ -0,0 +1,74 @@
+import {Packet} from './Packet';
+import {BitStream} from 'bit-buffer';
+import {ServerClass} from './ServerClass';
+import {SendTable} from './SendTable';
+import {StringTable} from './StringTable';
+import {ParserState} from './ParserState';
+
+export enum MessageType {
+	Sigon = 1,
+	Packet = 2,
+	SyncTick = 3,
+	ConsoleCmd = 4,
+	UserCmd = 5,
+	DataTables = 6,
+	Stop = 7,
+	StringTables = 8,
+}
+
+export interface BaseMessage {
+	tick: number;
+	rawData: BitStream;
+}
+
+export interface SigonMessage extends BaseMessage {
+	type: MessageType.Sigon;
+	packets: Packet[];
+}
+
+export interface PacketMessage extends BaseMessage {
+	type: MessageType.Packet;
+	packets: Packet[];
+}
+
+export interface SyncTickMessage extends BaseMessage {
+	type: MessageType.SyncTick;
+}
+
+export interface ConsoleCmdMessage extends BaseMessage {
+	type: MessageType.ConsoleCmd;
+	command: string;
+}
+
+export interface UserCmdMessage extends BaseMessage {
+	type: MessageType.UserCmd;
+}
+
+export interface DataTablesMessage extends BaseMessage {
+	type: MessageType.DataTables;
+	tables: SendTable[];
+	serverClasses: ServerClass[]
+}
+
+export interface StopMessage extends BaseMessage {
+	type: MessageType.Stop;
+}
+
+export interface StringTablesMessage extends BaseMessage {
+	type: MessageType.StringTables;
+	tables: StringTable[]
+}
+
+export type Message = SigonMessage |
+	PacketMessage |
+	SyncTickMessage |
+	ConsoleCmdMessage |
+	UserCmdMessage |
+	DataTablesMessage |
+	StopMessage |
+	StringTablesMessage;
+
+export interface MessageHandler<M extends Message> {
+	parseMessage: (stream: BitStream, tick: number, state: ParserState) => M;
+	encodeMessage: (message: M, stream: BitStream, state: ParserState) => void;
+}

src/Data/ParserState.ts

@@ -1,22 +1,83 @@
 import {BitStream} from 'bit-buffer';
 import {GameEventDefinition} from './GameEvent';
-import {EntityId, PacketEntity} from './PacketEntity';
+import {EntityId} from './PacketEntity';
 import {SendTable, SendTableName} from './SendTable';
 import {ServerClass, ServerClassId} from './ServerClass';
 import {StringTable} from './StringTable';
 import {GameEventType} from './GameEventTypes';
 import {SendProp} from './SendProp';
+import {Packet, PacketTypeId} from './Packet';
+import {
+	handleStringTable, handleStringTables, handleStringTableUpdate,
+	handleTable
+} from '../PacketHandler/StringTable';
+import {handleGameEventList} from '../PacketHandler/GameEventList';
+import {DataTablesMessage, Message, MessageType, StringTablesMessage} from './Message';
 
-export interface ParserState {
+export class ParserState {
-	staticBaseLines: Map<ServerClassId, BitStream>;
+	public version: number = 0;
-	staticBaselineCache: Map<ServerClassId, SendProp[]>;
+	public staticBaseLines: Map<ServerClassId, BitStream> = new Map();
-	eventDefinitions: Map<number, GameEventDefinition<GameEventType>>;
+	public staticBaselineCache: Map<ServerClassId, SendProp[]> = new Map();
-	entityClasses: Map<EntityId, ServerClass>;
+	public eventDefinitions: Map<number, GameEventDefinition<GameEventType>> = new Map();
-	sendTables: Map<SendTableName, SendTable>;
+	public entityClasses: Map<EntityId, ServerClass> = new Map();
-	version: number;
+	public sendTables: Map<SendTableName, SendTable> = new Map();
-	stringTables: StringTable[];
+	public stringTables: StringTable[] = [];
-	serverClasses: ServerClass[];
+	public serverClasses: ServerClass[] = [];
-	instanceBaselines: [Map<EntityId, SendProp[]>, Map<EntityId, SendProp[]>];
+	public instanceBaselines: [Map<EntityId, SendProp[]>, Map<EntityId, SendProp[]>] = [new Map(), new Map()];
+	public skippedPackets: PacketTypeId[] = [];
+	public userInfoEntries: Map<string, BitStream> = new Map();
+
+	public handlePacket(packet: Packet) {
+		switch (packet.packetType) {
+			case 'serverInfo':
+				this.version = packet.version;
+				break;
+			case 'stringTable':
+				handleStringTables(packet, this);
+				break;
+			case 'createStringTable':
+				handleStringTable(packet, this);
+				break;
+			case 'updateStringTable':
+				handleStringTableUpdate(packet, this);
+				break;
+			case 'gameEventList':
+				handleGameEventList(packet, this);
+				break;
+		}
+	}
+
+	public handleMessage(message: Message) {
+		switch (message.type) {
+			case MessageType.DataTables:
+				this.handleDataTableMessage(message);
+				break;
+			case MessageType.StringTables:
+				this.handleStringTableMessage(message);
+				break;
+		}
+	}
+
+	private handleDataTableMessage(message: DataTablesMessage) {
+		for (const table of message.tables) {
+			this.sendTables.set(table.name, table);
+		}
+		this.serverClasses = message.serverClasses;
+	}
+
+	private handleStringTableMessage(message: StringTablesMessage) {
+		for (const table of message.tables) {
+			handleTable(table, this);
+		}
+	}
+
+	public getStringTable(name: string): StringTable | null {
+		const table = this.stringTables.find(table => table.name === name);
+		if (!table) {
+			return null;
+		}
+		return table;
+	}
 }
 
 export function getClassBits(state: ParserState) {
@@ -32,24 +93,5 @@ export function getSendTable(state: ParserState, dataTable: string): SendTable {
 }
 
 export function createParserState(): ParserState {
-	return {
+	return new ParserState();
-		staticBaseLines: new Map(),
-		staticBaselineCache: new Map(),
-		eventDefinitions: new Map(),
-		entityClasses: new Map(),
-		sendTables: new Map(),
-		version: 0,
-		stringTables: [],
-		serverClasses: [],
-		instanceBaselines: [new Map(), new Map()]
-	};
-}
-
-export function getStringTable(state: ParserState, name: string) {
-	for (const table of state.stringTables) {
-		if (table.name === name) {
-			return table;
-		}
-	}
-	return null;
 }

src/Demo.ts

@@ -1,10 +1,7 @@
 import {BitStream} from 'bit-buffer';
 import {Parser} from './Parser';
-import {StreamDemo} from './StreamDemo';
 import {PacketTypeId} from './Data/Packet';
 
-export {StreamDemo} from './StreamDemo';
-
 export class Demo {
 	public static fromNodeBuffer(nodeBuffer) {
 		const arrayBuffer = new ArrayBuffer(nodeBuffer.length);
@@ -15,10 +12,6 @@ export class Demo {
 		return new Demo(arrayBuffer);
 	}
 
-	public static fromNodeStream(nodeStream) {
-		return new StreamDemo(nodeStream);
-	}
-
 	public stream: BitStream;
 
 	public parser: Parser | null;

src/PacketHandler/DataTable.ts

@@ -1,9 +0,0 @@
-import {Match} from '../Data/Match';
-import {DataTablePacket} from '../Data/Packet';
-
-export function handleDataTable(packet: DataTablePacket, match: Match) {
-	for (const table of packet.tables) {
-		match.sendTables.set(table.name, table);
-	}
-	match.serverClasses = packet.serverClasses;
-}

src/PacketHandler/GameEventList.ts

@@ -1,6 +1,6 @@
-import {Match} from '../Data/Match';
 import {GameEventListPacket} from '../Data/Packet';
+import {ParserState} from '../Data/ParserState';
 
-export function handleGameEventList(packet: GameEventListPacket, match: Match) {
+export function handleGameEventList(packet: GameEventListPacket, state: ParserState) {
-	match.eventDefinitions = packet.eventList;
+	state.eventDefinitions = packet.eventList;
 }

src/PacketHandler/PacketEntities.ts

@@ -10,7 +10,7 @@ import {TeamNumber} from '../Data/Team';
 
 export function handlePacketEntities(packet: PacketEntitiesPacket, match: Match) {
 	for (const removedEntityId of packet.removedEntities) {
-		match.entityClasses.delete(removedEntityId);
+		match.parserState.entityClasses.delete(removedEntityId);
 	}
 
 	for (const entity of packet.entities) {
@@ -21,10 +21,10 @@ export function handlePacketEntities(packet: PacketEntitiesPacket, match: Match)
 
 function saveEntity(packetEntity: PacketEntity, match: Match) {
 	if (packetEntity.pvs === PVS.DELETE) {
-		match.entityClasses.delete(packetEntity.entityIndex);
+		match.parserState.entityClasses.delete(packetEntity.entityIndex);
 	}
 
-	match.entityClasses.set(packetEntity.entityIndex, packetEntity.serverClass);
+	match.parserState.entityClasses.set(packetEntity.entityIndex, packetEntity.serverClass);
 }
 
 function handleEntity(entity: PacketEntity, match: Match) {
@@ -80,9 +80,13 @@ function handleEntity(entity: PacketEntity, match: Match) {
 			 * "DT_TFPlayerShared.m_flCloakMeter": 100,
 			 */
 
+			const userInfo = match.getUserInfoForEntity(entity);
+			if (!userInfo) {
+				throw new Error(`No user info for entity ${entity.entityIndex}`);
+			}
 			const player: Player = (match.playerEntityMap.has(entity.entityIndex)) ?
 				match.playerEntityMap.get(entity.entityIndex) as Player :
-				new Player(match, match.getUserInfoForEntity(entity));
+				new Player(match, userInfo);
 			if (!match.playerEntityMap.has(entity.entityIndex)) {
 				match.playerEntityMap.set(entity.entityIndex, player);
 			}

src/PacketHandler/StringTable.ts

@@ -1,68 +1,53 @@
-import {Match} from '../Data/Match';
 import {CreateStringTablePacket, StringTablePacket, UpdateStringTablePacket} from '../Data/Packet';
 import {StringTable, StringTableEntry} from '../Data/StringTable';
-import {getStringTable} from '../Data/ParserState';
+import {ParserState} from '../Data/ParserState';
 
-export function handleStringTable(packet: CreateStringTablePacket, match: Match) {
+export function handleStringTable(packet: CreateStringTablePacket, state: ParserState) {
-	handleTable(packet.table, match);
+	handleTable(packet.table, state);
 }
 
-export function handleStringTables(packet: StringTablePacket, match: Match) {
+export function handleStringTables(packet: StringTablePacket, state: ParserState) {
 	for (const table of packet.tables) {
-		handleTable(table, match);
+		handleTable(table, state);
 	}
 }
 
-export function handleStringTableUpdate(packet: UpdateStringTablePacket, match: Match) {
+export function handleStringTableUpdate(packet: UpdateStringTablePacket, state: ParserState) {
-	const updatedTable = match.stringTables[packet.tableId];
+	const updatedTable = state.stringTables[packet.tableId];
-	handleStringTableEntries(updatedTable.name, packet.entries, match);
+	handleStringTableEntries(updatedTable.name, packet.entries, state);
 }
 
 
-function handleTable(table: StringTable, match: Match) {
+export function handleTable(table: StringTable, state: ParserState) {
-	if (!getStringTable(match, table.name)) {
+	if (!state.getStringTable(table.name)) {
-		match.stringTables.push(table);
+		state.stringTables.push(table);
 	}
 
-	handleStringTableEntries(table.name, table.entries, match);
+	handleStringTableEntries(table.name, table.entries, state);
 }
 
-function handleStringTableEntries(tableName: string, entries: StringTableEntry[], match: Match) {
+function handleStringTableEntries(tableName: string, entries: StringTableEntry[], state: ParserState) {
 	if (tableName === 'userinfo') {
-		for (const userData of entries) {
+		for (const entry of entries) {
-			saveUserData(userData, match);
+			if (entry && entry.extraData) {
+				state.userInfoEntries.set(entry.text, entry.extraData);
+			}
 		}
 	}
 	if (tableName === 'instancebaseline') {
 		for (const instanceBaseLine of entries) {
 			if (instanceBaseLine) {
-				saveInstanceBaseLine(instanceBaseLine, match);
+				saveInstanceBaseLine(instanceBaseLine, state);
 			}
 		}
 	}
 }
 
-function saveUserData(userData: StringTableEntry, match: Match) {
+function saveInstanceBaseLine(entry: StringTableEntry, state: ParserState) {
-	if (userData && userData.extraData) {
-		if (userData.extraData.bitsLeft > (32 * 8)) {
-			const name = userData.extraData.readUTF8String(32);
-			const userId = userData.extraData.readUint32();
-			const steamId = userData.extraData.readUTF8String();
-			if (steamId) {
-				const userState = match.getUserInfo(userId);
-				userState.name = name;
-				userState.steamId = steamId;
-				userState.entityId = parseInt(userData.text, 10) + 1;
-			}
-		}
-	}
-}
-
-function saveInstanceBaseLine(entry: StringTableEntry, match: Match) {
 	if (entry.extraData) {
 		const serverClassId = parseInt(entry.text, 10);
-		match.staticBaselineCache.delete(serverClassId);
+		state.staticBaselineCache.delete(serverClassId);
-		match.staticBaseLines.set(serverClassId, entry.extraData);
+		state.staticBaseLines.set(serverClassId, entry.extraData);
 	} else {
 		throw new Error('Missing baseline');
 	}

src/Parser.ts

@@ -2,19 +2,31 @@ import {BitStream} from 'bit-buffer';
 import {EventEmitter} from 'events';
 import {Header} from './Data/Header';
 import {Match} from './Data/Match';
-import {ConsoleCmd} from './Parser/Message/ConsoleCmd';
+import {ConsoleCmdHandler} from './Parser/Message/ConsoleCmd';
-import {DataTable} from './Parser/Message/DataTable';
+import {DataTableHandler} from './Parser/Message/DataTable';
-import {Packet} from './Parser/Message/Packet';
+import {PacketMessageHandler} from './Parser/Message/Packet';
-import {Parser as MessageParser} from './Parser/Message/Parser';
+import {StringTableHandler} from './Parser/Message/StringTable';
-import {StringTable} from './Parser/Message/StringTable';
+import {UserCmdHandler} from './Parser/Message/UserCmd';
-import {UserCmd} from './Parser/Message/UserCmd';
 import {PacketTypeId} from './Data/Packet';
+import {Message, MessageHandler, MessageType, PacketMessage} from './Data/Message';
+
+const messageHandlers: Map<MessageType, MessageHandler<Message>> = new Map<MessageType, MessageHandler<Message>>([
+	[MessageType.Sigon, PacketMessageHandler],
+	[MessageType.Packet, PacketMessageHandler],
+	[MessageType.ConsoleCmd, ConsoleCmdHandler],
+	[MessageType.UserCmd, UserCmdHandler],
+	[MessageType.DataTables, DataTableHandler],
+	[MessageType.StringTables, StringTableHandler],
+]);
 
 export class Parser extends EventEmitter {
 	public stream: BitStream;
 	public match: Match;
 	protected skipPackets: PacketTypeId[];
 
+	public viewOrigin: number[][] = [[], []];
+	public viewAngles: number[][] = [[], []];
+
 	constructor(stream: BitStream, skipPackets: PacketTypeId[] = []) {
 		super();
 		this.stream = stream;
@@ -28,39 +40,40 @@ export class Parser extends EventEmitter {
 	}
 
 	public parseBody() {
-		let hasNext = true;
+		const messages = this.getMessages();
-		while (hasNext) {
+		for (const message of messages) {
-			hasNext = this.tick();
+			this.handleMessage(message);
 		}
 		this.emit('done', this.match);
 		return this.match;
 	}
 
+	private * getMessages(): Iterable<Message> {
+		let hasNext: boolean = true;
+		while (hasNext) {
+			const message = this.readMessage(this.stream, this.match);
+			if (!message) {
+				hasNext = false;
+			} else {
+				yield message;
+			}
+		}
+	}
+
 	public tick() {
 		const message = this.readMessage(this.stream, this.match);
-		if (message instanceof MessageParser) {
+		if (message) {
 			this.handleMessage(message);
 		}
 		return !!message;
 	}
 
-	protected parseMessage(data: BitStream, type: MessageType, tick: number, length: number, match: Match): MessageParser {
+	protected parseMessage(data: BitStream, type: MessageType, tick: number, match: Match): Message {
-
+		const handler = messageHandlers.get(type);
-		switch (type) {
+		if (!handler) {
-			case MessageType.Sigon:
+			throw new Error(`No handler for message of type ${MessageType[type]}`);
-			case MessageType.Packet:
-				return new Packet(type, tick, data, length, match, this.skipPackets);
-			case MessageType.ConsoleCmd:
-				return new ConsoleCmd(type, tick, data, length, match, this.skipPackets);
-			case MessageType.UserCmd:
-				return new UserCmd(type, tick, data, length, match, this.skipPackets);
-			case MessageType.DataTables:
-				return new DataTable(type, tick, data, length, match, this.skipPackets);
-			case MessageType.StringTables:
-				return new StringTable(type, tick, data, length, match, this.skipPackets);
-			default:
-				throw new Error('unknown message type');
 		}
+		return handler.parseMessage(data, tick, match.parserState);
 	}
 
 	protected parseHeader(stream): Header {
@@ -79,18 +92,17 @@ export class Parser extends EventEmitter {
 		};
 	}
 
-	protected handleMessage(message: MessageParser) {
+	protected handleMessage(message: Message) {
-		if (message.parse) {
+		this.match.parserState.handleMessage(message);
-			const packets = message.parse();
+		if (message.type === MessageType.Packet) {
-			for (const packet of packets) {
+			for (const packet of (message as PacketMessage).packets) {
-				if (packet) {
+				this.match.parserState.handlePacket(packet);
 				this.emit('packet', packet);
 			}
 		}
 	}
-	}
 
-	protected readMessage(stream: BitStream, match: Match): MessageParser | boolean {
+	protected readMessage(stream: BitStream, match: Match): Message | false {
 		if (stream.bitsLeft < 8) {
 			return false;
 		}
@@ -100,21 +112,16 @@ export class Parser extends EventEmitter {
 		}
 		const tick = stream.readInt32();
 
-		const viewOrigin: number[][] = [];
-		const viewAngles: number[][] = [];
-
 		switch (type) {
 			case MessageType.Sigon:
 			case MessageType.Packet:
 				this.stream.readInt32(); // flags
 				for (let j = 0; j < 2; j++) {
-					viewOrigin[j] = [];
-					viewAngles[j] = [];
 					for (let i = 0; i < 3; i++) {
-						viewOrigin[j][i] = this.stream.readInt32();
+						this.viewOrigin[j][i] = this.stream.readFloat32();
 					}
 					for (let i = 0; i < 3; i++) {
-						viewAngles[j][i] = this.stream.readInt32();
+						this.viewAngles[j][i] = this.stream.readFloat32();
 					}
 					for (let i = 0; i < 3; i++) {
 						this.stream.readInt32(); // local viewAngles
@@ -127,22 +134,15 @@ export class Parser extends EventEmitter {
 				stream.byteIndex += 0x04; // unknown / outgoing sequence
 				break;
 			case MessageType.SyncTick:
-				return true;
+				return {
+					type: MessageType.SyncTick,
+					tick,
+					rawData: stream.readBitStream(0)
+				};
 		}
 
 		const length = stream.readInt32();
 		const buffer = stream.readBitStream(length * 8);
-		return this.parseMessage(buffer, type, tick, length, match);
+		return this.parseMessage(buffer, type, tick, match);
 	}
 }
-
-export enum MessageType {
-	Sigon = 1,
-	Packet = 2,
-	SyncTick = 3,
-	ConsoleCmd = 4,
-	UserCmd = 5,
-	DataTables = 6,
-	Stop = 7,
-	StringTables = 8,
-}

src/Parser/Message/ConsoleCmd.ts

@@ -1,5 +1,7 @@
 import {ConsoleCmdPacket} from '../../Data/Packet';
 import {Parser} from './Parser';
+import {BitStream} from 'bit-buffer';
+import {ConsoleCmdMessage, MessageHandler, MessageType} from '../../Data/Message';
 
 export class ConsoleCmd extends Parser {
 	public parse(): ConsoleCmdPacket[] {
@@ -9,3 +11,17 @@ export class ConsoleCmd extends Parser {
 		}];
 	}
 }
+
+export const ConsoleCmdHandler: MessageHandler<ConsoleCmdMessage> = {
+	parseMessage: (stream: BitStream, tick: number) => {
+		return {
+			type: MessageType.ConsoleCmd,
+			tick,
+			rawData: stream,
+			command: stream.readUTF8String()
+		};
+	},
+	encodeMessage: (message: ConsoleCmdMessage, stream: BitStream) => {
+		stream.writeUTF8String(message.command);
+	}
+};

src/Parser/Message/DataTable.ts

@@ -1,41 +1,41 @@
-import {DataTablePacket} from '../../Data/Packet';
 import {SendPropDefinition, SendPropFlag, SendPropType} from '../../Data/SendPropDefinition';
 import {SendTable} from '../../Data/SendTable';
 import {ServerClass} from '../../Data/ServerClass';
-import {Parser} from './Parser';
+import {DataTablesMessage, MessageHandler, MessageType} from '../../Data/Message';
+import {BitStream} from 'bit-buffer';
 
-export class DataTable extends Parser {
+export const DataTableHandler: MessageHandler<DataTablesMessage> = {
-	public parse(): DataTablePacket[] {
+	parseMessage: (stream: BitStream, tick: number) => {
 		// https://github.com/LestaD/SourceEngine2007/blob/43a5c90a5ada1e69ca044595383be67f40b33c61/src_main/engine/dt_common_eng.cpp#L356
 		// https://github.com/LestaD/SourceEngine2007/blob/43a5c90a5ada1e69ca044595383be67f40b33c61/src_main/engine/dt_recv_eng.cpp#L310
 		// https://github.com/PazerOP/DemoLib/blob/master/DemoLib/Commands/DemoDataTablesCommand.cs
 		const tables: SendTable[] = [];
 		const tableMap: {[key: string]: SendTable} = {};
-		while (this.stream.readBoolean()) {
+		while (stream.readBoolean()) {
-			const needsDecoder = this.stream.readBoolean();
+			const needsDecoder = stream.readBoolean();
-			const tableName    = this.stream.readASCIIString();
+			const tableName = stream.readASCIIString();
-			const numProps     = this.stream.readBits(10);
+			const numProps = stream.readBits(10);
 			const table = new SendTable(tableName);
 
 			// get props metadata
 			let arrayElementProp;
 			for (let i = 0; i < numProps; i++) {
-				const propType   = this.stream.readBits(5);
+				const propType = stream.readBits(5);
-				const propName   = this.stream.readASCIIString();
+				const propName = stream.readASCIIString();
 				const nFlagsBits = 16; // might be 11 (old?), 13 (new?), 16(networked) or 17(??)
-				const flags      = this.stream.readBits(nFlagsBits);
+				const flags = stream.readBits(nFlagsBits);
 				const prop = new SendPropDefinition(propType, propName, flags, tableName);
 				if (propType === SendPropType.DPT_DataTable) {
-					prop.excludeDTName = this.stream.readASCIIString();
+					prop.excludeDTName = stream.readASCIIString();
 				} else {
 					if (prop.isExcludeProp()) {
-						prop.excludeDTName = this.stream.readASCIIString();
+						prop.excludeDTName = stream.readASCIIString();
 					} else if (prop.type === SendPropType.DPT_Array) {
-						prop.numElements = this.stream.readBits(10);
+						prop.numElements = stream.readBits(10);
 					} else {
-						prop.lowValue  = this.stream.readFloat32();
+						prop.lowValue = stream.readFloat32();
-						prop.highValue = this.stream.readFloat32();
+						prop.highValue = stream.readFloat32();
-						prop.bitCount  = this.stream.readBits(7);
+						prop.bitCount = stream.readBits(7);
 					}
 				}
 
@@ -85,31 +85,36 @@ export class DataTable extends Parser {
 			}
 		}
 
-		const numServerClasses             = this.stream.readUint16(); // short
+		const numServerClasses = stream.readUint16(); // short
 		const serverClasses: ServerClass[] = [];
 		if (numServerClasses <= 0) {
 			throw new Error('expected one or more serverclasses');
 		}
 
 		for (let i = 0; i < numServerClasses; i++) {
-			const classId = this.stream.readUint16();
+			const classId = stream.readUint16();
 			if (classId > numServerClasses) {
 				throw new Error('invalid class id');
 			}
-			const className = this.stream.readASCIIString();
+			const className = stream.readASCIIString();
-			const dataTable = this.stream.readASCIIString();
+			const dataTable = stream.readASCIIString();
 			serverClasses.push(new ServerClass(classId, className, dataTable));
 		}
 
-		const bitsLeft = (this.length * 8) - this.stream.index;
+		const bitsLeft = (this.length * 8) - stream.index;
 		if (bitsLeft > 7 || bitsLeft < 0) {
 			throw new Error('unexpected remaining data in datatable (' + bitsLeft + ' bits)');
 		}
 
-		return [{
+		return {
-			packetType:    'dataTable',
+			type: MessageType.DataTables,
+			tick,
+			rawData: stream,
 			tables,
 			serverClasses,
-		}];
+		};
+	},
+	encodeMessage: (message, stream) => {
+		throw new Error('Not implemented');
 	}
-}
+};

src/Parser/Message/Packet.ts

@@ -13,14 +13,15 @@ import {EncodeUpdateStringTable, ParseUpdateStringTable} from '../Packet/UpdateS
 import {EncodeUserMessage, ParseUserMessage} from '../Packet/UserMessage';
 import {EncodeVoiceData, ParseVoiceData} from '../Packet/VoiceData';
 import {EncodeVoiceInit, ParseVoiceInit} from '../Packet/VoiceInit';
-import {Parser} from './Parser';
 
 import {Packet as IPacket, PacketTypeId} from '../../Data/Packet';
+import {MessageHandler, MessageType, PacketMessage} from '../../Data/Message';
+import {BitStream} from 'bit-buffer';
+import {ParserState} from '../../Data/ParserState';
 
 type PacketHandlerMap = Map<PacketTypeId, PacketHandler<IPacket>>;
 
-export class Packet extends Parser {
+const handlers: PacketHandlerMap = new Map<PacketTypeId, PacketHandler<IPacket>>([
-	private static handlers: PacketHandlerMap = new Map<PacketTypeId, PacketHandler<IPacket>>([
 	[PacketTypeId.file,
 		make('file', 'transferId{32}fileName{s}requested{b}')],
 	[PacketTypeId.netTick,
@@ -78,18 +79,19 @@ export class Packet extends Parser {
 		make('getCvarValue', 'cookie{32}value{s}')],
 	[PacketTypeId.cmdKeyValues,
 		make('cmdKeyValues', 'length{32}data{$length}')],
-	]);
+]);
 
-	public parse() {
+export const PacketMessageHandler: MessageHandler<PacketMessage> = {
+	parseMessage: (stream: BitStream, tick: number, state: ParserState) => {
 		const packets: IPacket[] = [];
 		let lastPacketType = 0;
-		while (this.bitsLeft > 6) { // last 6 bits for NOOP
+		while (stream.bitsLeft > 6) { // last 6 bits for NOOP
-			const type = this.stream.readBits(6) as PacketTypeId;
+			const type = stream.readBits(6) as PacketTypeId;
 			if (type !== 0) {
-				const parser = Packet.handlers.get(type);
+				const parser = handlers.get(type);
 				if (parser) {
-					const skip = this.skippedPackets.indexOf(type) !== -1;
+					const skip = state.skippedPackets.indexOf(type) !== -1;
-					const packet = parser.parser(this.stream, this.state, skip);
+					const packet = parser.parser(stream, state, skip);
 					packets.push(packet);
 				} else {
 					throw new Error(`Unknown packet type ${type} just parsed a ${PacketTypeId[lastPacketType]}`);
@@ -97,10 +99,14 @@ export class Packet extends Parser {
 				lastPacketType = type;
 			}
 		}
-		return packets;
+		return {
+			type: MessageType.Packet,
+			tick,
+			rawData: stream,
+			packets
+		};
+	},
+	encodeMessage: (message, stream) => {
+		throw new Error('Not implemented');
 	}
-
+};
-	get bitsLeft() {
-		return (this.length * 8) - this.stream.index;
-	}
-}

src/Parser/Message/Parser.ts

@@ -1,6 +1,6 @@
 import {BitStream} from 'bit-buffer';
 import {Packet, PacketTypeId} from '../../Data/Packet';
-import {MessageType} from '../../Parser';
+import {MessageType} from '../../Data/Message';
 import {ParserState} from '../../Data/ParserState';
 
 export abstract class Parser {

src/Parser/Message/StringTable.ts

@@ -1,45 +1,49 @@
-import {StringTablePacket} from '../../Data/Packet';
 import {StringTable as StringTableObject, StringTableEntry} from '../../Data/StringTable';
-import {Parser} from './Parser';
+import {MessageHandler, MessageType, StringTablesMessage} from '../../Data/Message';
+import {BitStream} from 'bit-buffer';
 
-export class StringTable extends Parser {
+export const StringTableHandler: MessageHandler<StringTablesMessage> = {
-	public parse(): StringTablePacket[] {
+	parseMessage: (stream: BitStream, tick: number) => {
 		// we get the tables from the packets
 		// return [{
 		// 	packetType: 'stringTable',
 		// 	tables:     []
 		// }];
 		// https://github.com/StatsHelix/demoinfo/blob/3d28ea917c3d44d987b98bb8f976f1a3fcc19821/DemoInfo/ST/StringTableParser.cs
-		const tableCount = this.stream.readUint8();
+		const tableCount = stream.readUint8();
 		const tables: StringTableObject[] = [];
 		let extraDataLength;
 		for (let i = 0; i < tableCount; i++) {
 			const entries: StringTableEntry[] = [];
-			const tableName = this.stream.readASCIIString();
+			const tableName = stream.readASCIIString();
-			const entryCount = this.stream.readUint16();
+			const entryCount = stream.readUint16();
 			for (let j = 0; j < entryCount; j++) {
 				let entry: StringTableEntry;
 				try {
 					entry = {
-						text: this.stream.readUTF8String(),
+						text: stream.readUTF8String(),
 					};
 				} catch (e) {
-					return [{
+					return {
-						packetType: 'stringTable',
+						type: MessageType.StringTables,
+						tick,
+						rawData: stream,
 						tables,
-					}];
+					};
 				}
-				if (this.stream.readBoolean()) {
+				if (stream.readBoolean()) {
-					extraDataLength = this.stream.readUint16();
+					extraDataLength = stream.readUint16();
-					if ((extraDataLength * 8) > this.stream.bitsLeft) {
+					if ((extraDataLength * 8) > stream.bitsLeft) {
 						// extradata to long, can't continue parsing the tables
 						// seems to happen in POV demos after the MyM update
-						return [{
+						return {
-							packetType: 'stringTable',
+							type: MessageType.StringTables,
+							tick,
+							rawData: stream,
 							tables,
-						}];
+						};
 					}
-					entry.extraData = this.stream.readBitStream(extraDataLength * 8);
+					entry.extraData = stream.readBitStream(extraDataLength * 8);
 				}
 				entries.push(entry);
 			}
@@ -49,18 +53,23 @@ export class StringTable extends Parser {
 				maxEntries: entryCount,
 			};
 			tables.push(table);
-			if (this.stream.readBits(1)) {
+			if (stream.readBits(1)) {
-				this.stream.readASCIIString();
+				stream.readASCIIString();
-				if (this.stream.readBits(1)) {
+				if (stream.readBits(1)) {
 					// throw 'more extra data not implemented';
-					extraDataLength = this.stream.readBits(16);
+					extraDataLength = stream.readBits(16);
-					this.stream.readBits(extraDataLength);
+					stream.readBits(extraDataLength);
 				}
 			}
 		}
-		return [{
+		return {
-			packetType: 'stringTable',
+			type: MessageType.StringTables,
+			tick,
+			rawData: stream,
 			tables,
-		}];
+		};
+	},
+	encodeMessage: (message, stream) => {
+		throw new Error('Not implemented');
 	}
-}
+};

src/Parser/Message/UserCmd.ts

@@ -1,7 +1,15 @@
-import {Parser} from './Parser';
+import {MessageHandler, MessageType, UserCmdMessage} from '../../Data/Message';
+import {BitStream} from 'bit-buffer';
 
-export class UserCmd extends Parser {
+export const UserCmdHandler: MessageHandler<UserCmdMessage> = {
-	public parse() {
+	parseMessage: (stream: BitStream, tick: number) => {
-		return [];
+		return {
+			type: MessageType.UserCmd,
+			tick,
+			rawData: stream
+		};
+	},
+	encodeMessage: (message, stream) => {
+		throw new Error('not implemented');
 	}
-}
+};

src/StreamDemo.ts

@@ -1,14 +0,0 @@
-import {Stream} from 'stream';
-import {StreamParser} from './StreamParser';
-
-export class StreamDemo {
-	public stream: Stream;
-
-	constructor(nodeStream: Stream) {
-		this.stream = nodeStream;
-	}
-
-	public getParser() {
-		return new StreamParser(this.stream);
-	}
-}

src/StreamParser.ts

@@ -1,88 +0,0 @@
-import {BitStream} from 'bit-buffer';
-import {Buffer} from 'buffer';
-import {Stream} from 'stream';
-import {MessageType, Parser} from './Parser';
-
-export class StreamParser extends Parser {
-	public header: any;
-	private buffer: Buffer;
-	private sourceStream: Stream;
-
-	constructor(stream: Stream) {
-		super(new BitStream(new ArrayBuffer(0)));
-		this.sourceStream = stream;
-		this.on('packet', this.match.handlePacket.bind(this.match));
-		this.header = null;
-		this.buffer = new Buffer(0);
-	}
-
-	public start() {
-		this.sourceStream.on('data', this.handleData.bind(this));
-		this.sourceStream.on('end', function() {
-			this.emit('done', this.match);
-		}.bind(this));
-	}
-
-	private eatBuffer(length) {
-		this.buffer = shrinkBuffer(this.buffer, length);
-	}
-
-	private handleData(data) {
-		this.buffer = Buffer.concat([this.buffer, data]);
-		if (this.header === null) {
-			if (this.buffer.length > 1072) {
-				this.header = this.parseHeader(new BitStream(this.buffer));
-				this.eatBuffer(1072);
-			}
-		} else {
-			this.readStreamMessage();
-		}
-	}
-
-	private readStreamMessage() {
-		if (this.buffer.length < 9) { // 9 byte minimum message header (type, tick, length)
-			return;
-		}
-		const stream = new BitStream(this.buffer);
-		const type   = stream.readBits(8);
-		if (type === MessageType.Stop) {
-			return;
-		}
-		const tick = stream.readInt32();
-
-		let headerSize    = 5;
-		let extraHeader = 0;
-
-		switch (type) {
-			case MessageType.Sigon:
-			case MessageType.Packet:
-				extraHeader += 0x54; // command/sequence info
-				break;
-			case MessageType.UserCmd:
-				extraHeader += 0x04; // unknown / outgoing sequence
-				break;
-			case MessageType.Stop:
-			case MessageType.SyncTick:
-				this.eatBuffer(headerSize);
-				return;
-		}
-		stream.byteIndex += extraHeader;
-		const length = stream.readInt32();
-		headerSize += extraHeader + 4;
-
-		if (this.buffer.length < (headerSize + length)) {
-			return;
-		}
-
-		const messageStream = stream.readBitStream(length * 8);
-		const message = this.parseMessage(messageStream, type, tick, length, this.match);
-		this.handleMessage(message);
-	}
-}
-
-function shrinkBuffer(buffer, length) {
-	if (length < 0) {
-		throw new Error('cant shrink by negative length ' + length);
-	}
-	return buffer.slice(length, buffer.length);
-}

src/index.ts

@@ -1,6 +1,5 @@
 export {Demo} from './Demo';
 export {Parser} from './Parser';
-export {StreamParser} from './StreamParser';
 export {Match} from './Data/Match';
 export {Player} from './Data/Player';
 export {PlayerCondition} from './Data/PlayerCondition';