1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
import {
addSessionClient,
createNewSession,
getSession,
setSessionState,
} from "../config/coop-session-store.js";
import { WebSocketServer } from "ws";
import { v4 as uuidv4 } from "uuid";
import { IncomingMessage } from "http";
import { CoopWebSocket } from "../model/websocket.js";
import { parse } from "url";
import {
ClientJoinedCoopSessionMessage,
CoopSessionCreatedMessage,
CoopSessionMessage,
CoopSessionMoveMessage,
CoopSessionMoveTimeoutMessage,
CoopSessionStateChangeMessage,
} from "../model/actions/coop.js";
export const wss = new WebSocketServer({ noServer: true });
const sendMessageToClient = (
client: CoopWebSocket,
message: CoopSessionMessage
) => {
if (client.readyState === client.OPEN) {
client.send(JSON.stringify(message));
console.log(
`Sent message to client ${client.clientId}: ${JSON.stringify(message)}}`
);
}
};
wss.on("connection", (ws: CoopWebSocket, req: IncomingMessage) => {
ws.clientId = uuidv4();
const url = parse(req.url!, true);
if (url.query.action === "create") {
const session = createNewSession(ws);
sendMessageToClient(ws, <CoopSessionCreatedMessage>{
type: "create",
payload: {
sessionId: session.id,
},
});
ws.sessionId = session.id;
} else if (url.query.action === "join") {
const session = getSession(url.query.sessionId as string);
if (!session) {
ws.close();
return;
}
addSessionClient(url.query.sessionId as string, ws);
sendMessageToClient(session.host, <ClientJoinedCoopSessionMessage>{
type: "join",
payload: {
numberOfClients: session.clients.length,
},
});
sendMessageToClient(ws, <CoopSessionStateChangeMessage>{
type: "state",
payload: {
state: session.state,
},
});
ws.sessionId = session.id;
} else {
ws.close();
return;
}
ws.on("message", (message) => {
console.log(`Received message from client ${ws.clientId}: ${message}`);
let data: any;
try {
data = JSON.parse(message.toString());
} catch (e) {
return;
}
const session = getSession(ws.sessionId);
if (!session) {
return;
}
const type = data.type as string;
const payload = data.payload as any;
if (!type || !payload) {
return;
}
if (type === "move") {
if (Date.now() - ws.nextMoveTimestamp < 0) {
return;
}
sendMessageToClient(session.host, <CoopSessionMoveMessage>{
type: "move",
payload: {
move: payload.move,
},
});
ws.nextMoveTimestamp = Date.now() + 1000;
sendMessageToClient(ws, <CoopSessionMoveTimeoutMessage>{
type: "timeout",
payload: {
timeoutUntil: ws.nextMoveTimestamp,
},
});
} else if (type === "start") {
session.state = "playing";
[session.host, ...session.clients].forEach((client) => {
sendMessageToClient(client, <CoopSessionStateChangeMessage>{
type: "state",
payload: {
state: "playing",
},
});
});
} else if (type === "end") {
session.state = "finished";
[session.host, ...session.clients].forEach((client) => {
sendMessageToClient(client, <CoopSessionStateChangeMessage>{
type: "state",
payload: {
state: "finished",
},
});
});
}
});
});
|
