X-Git-Url: https://git.cworth.org/git?p=empires-server;a=blobdiff_plain;f=game.js;h=8ea26e34084d140a84d51454cfdaf2c58846bba6;hp=b43a75c42a36fd69212b75a29aa9f140ea153d1f;hb=66b333239bd232c60cc1093aefc55c585af293cc;hpb=c381788fa303d9ca392fc4b7b25c4d55344717da diff --git a/game.js b/game.js index b43a75c..8ea26e3 100644 --- a/game.js +++ b/game.js @@ -9,6 +9,7 @@ class Player { this.name = name; this.connections = [connection]; this.team = no_team; + this.active = true; } add_connection(connection) { @@ -23,7 +24,7 @@ class Player { /* Returns the number of remaining connections after this one is removed. */ remove_connection(connection) { - this.connections.filter(c => c !== connection); + this.connections = this.connections.filter(c => c !== connection); return this.connections.length; } @@ -36,17 +37,29 @@ class Player { return JSON.stringify({ id: this.id, name: this.name, - team: this.team.name + team: this.team.name, + score: this.score }); } } +/* This replacer function allows for JSON.stringify to give results + * for objects of various types that are used in game state. + */ +function stringify_replacer(key, value) { + if (typeof value === 'object' && value instanceof Set) { + return [...value]; + } + return value; +} + /* Base class providing common code for game engine implementations. */ class Game { constructor(id) { this.id = id; this.players = []; this.players_by_session = {}; + this.active_players = 0; this.next_player_id = 1; this.teams = []; this.state = { @@ -158,7 +171,20 @@ class Game { /* No existing player. Add a new one. */ const id = this.next_player_id; - const player = new Player(id, session.id, session.nickname, connection); + let nickname = session.nickname; + if (nickname === "") + nickname = "Guest"; + const nickname_orig = nickname; + + /* Ensure we don't have a name collision with a previous player. */ + let unique_suffix = 1; + while (this.players.find(player => player.name === nickname)) + { + nickname = `${nickname_orig}${unique_suffix.toString().padStart(2, '0')}`; + unique_suffix++; + } + + const player = new Player(id, session.id, nickname, connection); /* Broadcast before adding player to list (to avoid announcing the * new player to itself). */ @@ -167,8 +193,22 @@ class Game { this.players.push(player); this.players_by_session[session.id] = player; + this.active_players++; this.next_player_id++; + /* After adding the player to the list, and if we are already past + * the first move, assign this player to the first team that + * doesn't already have a player assigned (if any). */ + if (! this.first_move) { + const have_players = Array(this.teams.length).fill(false); + this.players.forEach(p => { + if (p.team.id !== undefined) + have_players[p.team.id] = true; + }); + const first_empty = have_players.findIndex(i => i === false); + this.assign_player_to_team_perhaps(player, this.teams[first_empty]); + } + return player; } @@ -177,9 +217,9 @@ class Game { remove_player_connection(player, connection) { const remaining = player.remove_connection(connection); if (remaining === 0) { + player.active = false; + this.active_players--; const player_data = JSON.stringify({ id: player.id }); - this.players.filter(p => p !== player); - delete this.players_by_session[player.session_id]; this.broadcast_event("player-exit", player_data); } } @@ -198,6 +238,10 @@ class Game { this.broadcast_string(`event: ${type}\ndata: ${data}\n`); } + broadcast_event_object(type, obj) { + this.broadcast_event(type, JSON.stringify(obj)); + } + handle_events(request, response) { /* These headers will keep the connection open so we can stream events. */ const headers = { @@ -225,15 +269,15 @@ class Game { /* And the player-info event. */ response.write(`event: player-info\ndata: ${player.info_json()}\n\n`); - /* As well as player-enter events for all existing players. */ - this.players.filter(p => p !== player).forEach(p => { + /* As well as player-enter events for all existing, active players. */ + this.players.filter(p => p !== player && p.active).forEach(p => { response.write(`event: player-enter\ndata: ${p.info_json()}\n\n`); }); /* Finally, if this game class has a "state" property, stream that * current state to the client. */ if (this.state) { - const state_json = JSON.stringify(this.state); + const state_json = JSON.stringify(this.state, stringify_replacer); response.write(`event: game-state\ndata: ${state_json}\n\n`); } } @@ -280,7 +324,7 @@ class Game { } broadcast_move(move) { - this.broadcast_event("move", move); + this.broadcast_event("move", JSON.stringify(move)); } }