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-rw-r--r--server.js33
1 files changed, 22 insertions, 11 deletions
diff --git a/server.js b/server.js
index 66183d8..bae58f6 100644
--- a/server.js
+++ b/server.js
@@ -1969,6 +1969,7 @@ setInterval(notify_ready_to_start_reminder, 5 * 60 * 1000)
*/
var game_clients = {}
+var game_cookies = {}
function is_player_online(game_id, user_id) {
if (game_clients[game_id])
@@ -1997,10 +1998,10 @@ function send_state(socket, state) {
view.log = view.log.slice(view.log_start)
if (state.state === 'game_over')
view.game_over = 1
- view = JSON.stringify(['state', view])
- if (socket.last_view !== view) {
- socket.send(view)
- socket.last_view = view
+ let this_view = JSON.stringify(view)
+ if (view.actions || socket.last_view !== this_view) {
+ socket.send('["state",' + this_view + ',' + game_cookies[socket.game_id] + ']')
+ socket.last_view = this_view
}
} catch (err) {
console.log(err)
@@ -2062,11 +2063,17 @@ function put_new_state(game_id, state, old_active, role, action, args) {
put_game_state(game_id, state, old_active)
}
-function on_action(socket, action, args) {
- if (args !== undefined)
+function on_action(socket, action, args, cookie) {
+ if (args !== null)
SLOG(socket, "ACTION", action, JSON.stringify(args))
else
SLOG(socket, "ACTION", action)
+
+ if (typeof cookie === "number") // TODO: for backwards compatibility only, remove later!
+ if (game_cookies[socket.game_id] !== cookie)
+ return send_message(socket, 'error', "Synchronization error!")
+ game_cookies[socket.game_id] ++
+
try {
let state = get_game_state(socket.game_id)
let old_active = state.active
@@ -2254,7 +2261,7 @@ function broadcast_presence(game_id) {
function handle_player_message(socket, cmd, arg) {
switch (cmd) {
case "action":
- on_action(socket, arg[0], arg[1])
+ on_action(socket, arg[0], arg[1], arg[2])
break
case "query":
on_query(socket, arg[0], arg[1])
@@ -2350,18 +2357,22 @@ wss.on('connection', (socket, req) => {
if (socket.seen === 0)
send_message(socket, 'players', [socket.role, players.map(p => ({ name: p.name, role: p.role }))])
- if (game_clients[socket.game_id])
+ if (game_clients[socket.game_id]) {
game_clients[socket.game_id].push(socket)
- else
+ } else {
game_clients[socket.game_id] = [ socket ]
+ game_cookies[socket.game_id] = 1
+ }
socket.on('close', (code) => {
SLOG(socket, "CLOSE " + code)
game_clients[socket.game_id].splice(game_clients[socket.game_id].indexOf(socket), 1)
- if (game_clients[socket.game_id].length > 0)
+ if (game_clients[socket.game_id].length > 0) {
broadcast_presence(socket.game_id)
- else
+ } else {
delete game_clients[socket.game_id]
+ delete game_cookies[socket.game_id]
+ }
})
socket.on('error', (err) => {