Initial commit

README.md

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+# Multiplayer FPS-Game
+A Multiplayer FPS built with Babylon.js. In this implementation the server only acts as messanger, but only the clients actually simulate the world.
+
+DEMO: http://185.82.21.82/FPS-Game/public/
+
+Check out this Babylon JS multiplayer implementation for Client and Server-Side physics simulation: https://github.com/j-o-d-o/multiplayer-babylon-js-game
+

game.js

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+var util = require("util");
+var	io = require("socket.io")({
+		transports : [ "websocket" ]
+
+	});
+var	Player = require("./public/shared/models/Player").Player;
+
+//Global Variables
+var socket; 
+var	players;
+var spread = 400; //How far away the starting points of the players are
+
+//Init function => will be called at the end of this file
+function init() {
+	players = [];
+	socket = io.listen(8000); 
+	setEventHandlers();
+} 
+
+var setEventHandlers = function() {
+	//Listening to new connections from websockets
+    socket.sockets.on("connection", onSocketConnection);
+};
+
+function onSocketConnection(client) {
+	onClientConnect(client);
+	//Add some event listeners 
+    client.on("set userName", onSetUserName);
+    client.on("disconnect", onClientDisconnect);
+    client.on("request init game", onClientRequestInit);
+    client.on("update position", onUpdatePosition);
+    client.on("hit player", onPlayerHit);
+    client.on("player suicide", onPlayerSuicide);
+    client.on("request resapwn", onRespawnPlayer);
+    client.on("player fired shot", onShotFired);
+    client.on("send msg", onClientSentMsg);
+};
+
+
+//Event Functions
+//==============================================================================
+//Socket client has connected, must created a new player for the connection
+function onClientConnect(client){
+	util.log("New Player has connected: " + client.id);
+    //Create a player for this ID
+	//ToDo: Check if position is available for the loaded level
+	var newPlayer = new Player((Math.random() - 0.5) * spread , 0 , (Math.random() - 0.5) * spread); 
+	newPlayer.setID(client.id);   
+	newPlayer.setColor(Math.random(), Math.random(), Math.random()); 
+	players.push(newPlayer);
+}  
+//Before this the user is not loaded
+function onSetUserName(data){
+    var player = playerById(this.id);
+    player.setName(data.userName);
+    this.emit("start render", {}); 
+} 
+//Client requests game information about players
+//Send Client all information and Tell all other Players that a new Player has connected
+function onClientRequestInit(){
+    //Find clients player
+    var clientPlayer = playerById(this.id);
+    // Player not found
+	if (!clientPlayer) {
+		util.log("Player not found: "+this.id);
+		return;
+	};  
+    //Get all Infos of the other Players
+    var remotePlayer = [];
+    //Emitting all players to the new player
+	for (var i = 0; i < players.length; i++) {
+		if(players[i].getID() != this.id && players[i].getName() != "") 
+	       remotePlayer.push(players[i]);	 
+	}
+    //Send the init information to the Client
+    this.emit("init game", {localPlayer: clientPlayer , remotePlayers : remotePlayer });
+    //Tell all current players, there is a new player
+	this.broadcast.emit("new player", {player: clientPlayer});
+}
+// Socket client has disconnected => Remove the player and tell all other players
+function onClientDisconnect() {
+	util.log("Player has disconnected: "+this.id);
+	var removePlayer = playerById(this.id);
+	// Player not found
+	if (!removePlayer) {
+		util.log("Player not found: "+this.id);
+		return;
+	};
+	// Remove player from players array
+	players.splice(players.indexOf(removePlayer), 1);
+	// Broadcast removed player to connected socket clients
+	this.broadcast.emit("remove player", {id: this.id});
+};
+//data.pos = { x , y , z} => new position of the player (that sent the request)
+//data.rot = { x , y , z} => new rotation of the player (that sent the request)
+function onUpdatePosition(data) {
+    var movedPlayer = playerById(this.id);
+	// Player not found
+	if (!movedPlayer) {
+		util.log("Player not found (onUpdatePosition): " + this.id);
+		return;
+	} 
+    //Update model player instance on Server 
+    movedPlayer.setXYZ(data.pos.x, data.pos.y, data.pos.z); 
+    movedPlayer.setRotXYZ(data.rot.x, data.rot.y, data.rot.z);      
+    //Broadcast position change to all other players 
+    this.broadcast.emit("move player", { id: this.id, rot : data.rot, pos : data.pos}); 
+};
+//data.id => Id of the player that got hit (While this.id is the id of the player that landed that hit)
+function onPlayerHit(data){
+    var hitPlayer = playerById(data.id);
+    var shooter = playerById(this.id);
+
+	// Player not found
+	if (!hitPlayer || !shooter) {
+		util.log("Player not found (onPlayerHit)");
+		return;
+	}
+
+    //Check if hit player is already dead ... dead people cant die
+    //or if the shooter is dead ... because dead people also cant shoot anybody
+    if(hitPlayer.isDead() || shooter.isDead())
+        return;
+
+    var isDead = hitPlayer.hit();
+    if(isDead){
+        hitPlayer.addDeath();
+        shooter.addKill(); 
+        //Send all players that this player is dead (plus the sender itself, thast why no broadcast is used)
+        socket.emit("player dead", { id : data.id , killer: this.id});
+    }
+    else{ 
+        //Send player his new hitpoints
+        socket.to(data.id).emit("update hitpoints", { hitPoints : hitPlayer.getHitPoints() });
+    }
+}
+
+function onRespawnPlayer(){
+    var respawnPlayer = playerById(this.id);
+    if(respawnPlayer.isDead()){ 
+        respawnPlayer.setDead(false);
+        respawnPlayer.setHitPoints(100);
+        respawnPlayer.setXYZ(Math.random() * spread , 0 , Math.random() * spread); 
+        socket.emit("respawn player", { player : respawnPlayer });
+    }
+}
+
+function onPlayerSuicide(){
+    var suicidePlayer = playerById(this.id);
+	if(!suicidePlayer.isDead()){
+		suicidePlayer.addDeath();
+		suicidePlayer.setDead(true);  
+		socket.emit("player dead", { id : this.id , killer: this.id});
+	}
+}
+
+function onShotFired(){
+    var shooter = playerById(this.id);
+    var position = shooter.getXYZ(); 
+    this.broadcast.emit("shot fired", {pos : position});
+}
+
+//Chat
+//===================================
+//data.msg => msg content
+function onClientSentMsg(data){
+    //Send this msg to all other clients (including self)
+    socket.emit("recived msg", {from: this.id, msg : data.msg});
+}
+
+//Helper functions
+//====================================================================================================
+//Searching player by its ID
+function playerById(id) {
+    for (var i = 0; i < players.length; i++) {
+        if (players[i].getID() == id)
+            return players[i];
+    };
+    return false;
+};
+
+
+
+init();